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Merge tag 'drm-intel-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 

Last batch of drm/i915 features for v4.15:

- transparent huge pages support (Matthew)
- uapi: I915_PARAM_HAS_SCHEDULER into a capability bitmask (Chris)
- execlists: preemption (Chris)
- scheduler: user defined priorities (Chris)
- execlists optimization (Michał)
- plenty of display fixes (Imre)
- has_ipc fix (Rodrigo)
- platform features definition refactoring (Rodrigo)
- legacy cursor update fix (Maarten)
- fix vblank waits for cursor updates (Maarten)
- reprogram dmc firmware on resume, dmc state fix (Imre)
- remove use_mmio_flip module parameter (Maarten)
- wa fixes (Oscar)
- huc/guc firmware refacoring (Sagar, Michal)
- push encoder specific code to encoder hooks (Jani)
- DP MST fixes (Dhinakaran)
- eDP power sequencing fixes (Manasi)
- selftest updates (Chris, Matthew)
- mmu notifier cpu hotplug deadlock fix (Daniel)
- more VBT parser refactoring (Jani)
- max pipe refactoring (Mika Kahola)
- rc6/rps refactoring and separation (Sagar)
- userptr lockdep fix (Chris)
- tracepoint fixes and defunct tracepoint removal (Chris)
- use rcu instead of abusing stop_machine (Daniel)
- plenty of other fixes all around (Everyone)

* tag 'drm-intel-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-intel: (145 commits)
  drm/i915: Update DRIVER_DATE to 20171012
  drm/i915: Simplify intel_sanitize_enable_ppgtt
  drm/i915/userptr: Drop struct_mutex before cleanup
  drm/i915/dp: limit sink rates based on rate
  drm/i915/dp: centralize max source rate conditions more
  drm/i915: Allow PCH platforms fall back to BIOS LVDS mode
  drm/i915: Reuse normal state readout for LVDS/DVO fixed mode
  drm/i915: Use rcu instead of stop_machine in set_wedged
  drm/i915: Introduce separate status variable for RC6 and LLC ring frequency setup
  drm/i915: Create generic functions to control RC6, RPS
  drm/i915: Create generic function to setup LLC ring frequency table
  drm/i915: Rename intel_enable_rc6 to intel_rc6_enabled
  drm/i915: Name structure in dev_priv that contains RPS/RC6 state as "gt_pm"
  drm/i915: Move rps.hw_lock to dev_priv and s/hw_lock/pcu_lock
  drm/i915: Name i915_runtime_pm structure in dev_priv as "runtime_pm"
  drm/i915: Separate RPS and RC6 handling for CHV
  drm/i915: Separate RPS and RC6 handling for VLV
  drm/i915: Separate RPS and RC6 handling for BDW
  drm/i915: Remove superfluous IS_BDW checks and non-BDW changes from gen8_enable_rps
  drm/i915: Separate RPS and RC6 handling for gen6+
  ...
This commit is contained in:
Dave Airlie 2017-10-20 10:56:10 +10:00
parent 6585d4274b fa9caf0b6e
commit 282dc8322a
88 changed files with 5577 additions and 2239 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/i915/Makefile
View File

@ -47,6 +47,7 @@ i915-y += i915_cmd_parser.o \
i915_gem_tiling.o \
i915_gem_timeline.o \
i915_gem_userptr.o \
i915_gemfs.o \
i915_trace_points.o \
i915_vma.o \
intel_breadcrumbs.o \
@ -59,6 +60,8 @@ i915-y += i915_cmd_parser.o \
# general-purpose microcontroller (GuC) support
i915-y += intel_uc.o \
intel_uc_fw.o \
intel_guc.o \
intel_guc_ct.o \
intel_guc_log.o \
intel_guc_loader.o \

1
drivers/gpu/drm/i915/gvt/scheduler.c
View File

@ -174,6 +174,7 @@ static int shadow_context_status_change(struct notifier_block *nb,
atomic_set(&workload->shadow_ctx_active, 1);
break;
case INTEL_CONTEXT_SCHEDULE_OUT:
case INTEL_CONTEXT_SCHEDULE_PREEMPTED:
atomic_set(&workload->shadow_ctx_active, 0);
break;
default:

379
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -30,6 +30,7 @@
#include <linux/sort.h>
#include <linux/sched/mm.h>
#include "intel_drv.h"
#include "i915_guc_submission.h"
static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
{
@ -97,7 +98,7 @@ static char get_tiling_flag(struct drm_i915_gem_object *obj)
static char get_global_flag(struct drm_i915_gem_object *obj)
{
return !list_empty(&obj->userfault_link) ? 'g' : ' ';
return obj->userfault_count ? 'g' : ' ';
}
static char get_pin_mapped_flag(struct drm_i915_gem_object *obj)
@ -118,6 +119,36 @@ static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
return size;
}
static const char *
stringify_page_sizes(unsigned int page_sizes, char *buf, size_t len)
{
size_t x = 0;
switch (page_sizes) {
case 0:
return "";
case I915_GTT_PAGE_SIZE_4K:
return "4K";
case I915_GTT_PAGE_SIZE_64K:
return "64K";
case I915_GTT_PAGE_SIZE_2M:
return "2M";
default:
if (!buf)
return "M";
if (page_sizes & I915_GTT_PAGE_SIZE_2M)
x += snprintf(buf + x, len - x, "2M, ");
if (page_sizes & I915_GTT_PAGE_SIZE_64K)
x += snprintf(buf + x, len - x, "64K, ");
if (page_sizes & I915_GTT_PAGE_SIZE_4K)
x += snprintf(buf + x, len - x, "4K, ");
buf[x-2] = '\0';
return buf;
}
}
static void
describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
{
@ -155,9 +186,10 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
if (!drm_mm_node_allocated(&vma->node))
continue;
seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
seq_printf(m, " (%sgtt offset: %08llx, size: %08llx, pages: %s",
i915_vma_is_ggtt(vma) ? "g" : "pp",
vma->node.start, vma->node.size);
vma->node.start, vma->node.size,
stringify_page_sizes(vma->page_sizes.gtt, NULL, 0));
if (i915_vma_is_ggtt(vma)) {
switch (vma->ggtt_view.type) {
case I915_GGTT_VIEW_NORMAL:
@ -402,10 +434,12 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
struct i915_ggtt *ggtt = &dev_priv->ggtt;
u32 count, mapped_count, purgeable_count, dpy_count;
u64 size, mapped_size, purgeable_size, dpy_size;
u32 count, mapped_count, purgeable_count, dpy_count, huge_count;
u64 size, mapped_size, purgeable_size, dpy_size, huge_size;
struct drm_i915_gem_object *obj;
unsigned int page_sizes = 0;
struct drm_file *file;
char buf[80];
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
@ -419,6 +453,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
size = count = 0;
mapped_size = mapped_count = 0;
purgeable_size = purgeable_count = 0;
huge_size = huge_count = 0;
list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_link) {
size += obj->base.size;
++count;
@ -432,6 +467,12 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
mapped_count++;
mapped_size += obj->base.size;
}
if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) {
huge_count++;
huge_size += obj->base.size;
page_sizes |= obj->mm.page_sizes.sg;
}
}
seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
@ -454,6 +495,12 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
mapped_count++;
mapped_size += obj->base.size;
}
if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) {
huge_count++;
huge_size += obj->base.size;
page_sizes |= obj->mm.page_sizes.sg;
}
}
seq_printf(m, "%u bound objects, %llu bytes\n",
count, size);
@ -461,11 +508,18 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
purgeable_count, purgeable_size);
seq_printf(m, "%u mapped objects, %llu bytes\n",
mapped_count, mapped_size);
seq_printf(m, "%u huge-paged objects (%s) %llu bytes\n",
huge_count,
stringify_page_sizes(page_sizes, buf, sizeof(buf)),
huge_size);
seq_printf(m, "%u display objects (pinned), %llu bytes\n",
dpy_count, dpy_size);
seq_printf(m, "%llu [%llu] gtt total\n",
ggtt->base.total, ggtt->mappable_end);
seq_printf(m, "Supported page sizes: %s\n",
stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes,
buf, sizeof(buf)));
seq_putc(m, '\n');
print_batch_pool_stats(m, dev_priv);
@ -1026,6 +1080,7 @@ DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
static int i915_frequency_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
int ret = 0;
intel_runtime_pm_get(dev_priv);
@ -1041,9 +1096,19 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
seq_printf(m, "Current P-state: %d\n",
(rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
u32 freq_sts;
u32 rpmodectl, freq_sts;
mutex_lock(&dev_priv->pcu_lock);
rpmodectl = I915_READ(GEN6_RP_CONTROL);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
mutex_lock(&dev_priv->rps.hw_lock);
freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
@ -1052,21 +1117,21 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
seq_printf(m, "current GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
intel_gpu_freq(dev_priv, rps->cur_freq));
seq_printf(m, "max GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
intel_gpu_freq(dev_priv, rps->max_freq));
seq_printf(m, "min GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
intel_gpu_freq(dev_priv, rps->min_freq));
seq_printf(m, "idle GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
intel_gpu_freq(dev_priv, rps->idle_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
mutex_unlock(&dev_priv->rps.hw_lock);
intel_gpu_freq(dev_priv, rps->efficient_freq));
mutex_unlock(&dev_priv->pcu_lock);
} else if (INTEL_GEN(dev_priv) >= 6) {
u32 rp_state_limits;
u32 gt_perf_status;
@ -1136,10 +1201,17 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
pm_iir = I915_READ(GEN8_GT_IIR(2));
pm_mask = I915_READ(GEN6_PMINTRMSK);
}
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
seq_printf(m, "PM IER=0x%08x IMR=0x%08x ISR=0x%08x IIR=0x%08x, MASK=0x%08x\n",
pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n",
dev_priv->rps.pm_intrmsk_mbz);
rps->pm_intrmsk_mbz);
seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
seq_printf(m, "Render p-state ratio: %d\n",
(gt_perf_status & (INTEL_GEN(dev_priv) >= 9 ? 0x1ff00 : 0xff00)) >> 8);
@ -1159,8 +1231,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
seq_printf(m, "RP PREV UP: %d (%dus)\n",
rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
seq_printf(m, "Up threshold: %d%%\n",
dev_priv->rps.up_threshold);
seq_printf(m, "Up threshold: %d%%\n", rps->up_threshold);
seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
@ -1168,8 +1239,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
seq_printf(m, "Down threshold: %d%%\n",
dev_priv->rps.down_threshold);
seq_printf(m, "Down threshold: %d%%\n", rps->down_threshold);
max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
rp_state_cap >> 16) & 0xff;
@ -1191,22 +1261,22 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
intel_gpu_freq(dev_priv, max_freq));
seq_printf(m, "Max overclocked frequency: %dMHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
intel_gpu_freq(dev_priv, rps->max_freq));
seq_printf(m, "Current freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
intel_gpu_freq(dev_priv, rps->cur_freq));
seq_printf(m, "Actual freq: %d MHz\n", cagf);
seq_printf(m, "Idle freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
intel_gpu_freq(dev_priv, rps->idle_freq));
seq_printf(m, "Min freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
intel_gpu_freq(dev_priv, rps->min_freq));
seq_printf(m, "Boost freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
intel_gpu_freq(dev_priv, rps->boost_freq));
seq_printf(m, "Max freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
intel_gpu_freq(dev_priv, rps->max_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
intel_gpu_freq(dev_priv, rps->efficient_freq));
} else {
seq_puts(m, "no P-state info available\n");
}
@ -1447,21 +1517,11 @@ static void print_rc6_res(struct seq_file *m,
static int vlv_drpc_info(struct seq_file *m)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
u32 rpmodectl1, rcctl1, pw_status;
u32 rcctl1, pw_status;
pw_status = I915_READ(VLV_GTLC_PW_STATUS);
rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
rcctl1 = I915_READ(GEN6_RC_CONTROL);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "Turbo enabled: %s\n",
yesno(rpmodectl1 & GEN6_RP_ENABLE));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl1 & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
seq_printf(m, "RC6 Enabled: %s\n",
yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
GEN6_RC_CTL_EI_MODE(1))));
@ -1479,7 +1539,7 @@ static int vlv_drpc_info(struct seq_file *m)
static int gen6_drpc_info(struct seq_file *m)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
u32 gt_core_status, rcctl1, rc6vids = 0;
u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
unsigned forcewake_count;
int count = 0;
@ -1498,24 +1558,16 @@ static int gen6_drpc_info(struct seq_file *m)
gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
rcctl1 = I915_READ(GEN6_RC_CONTROL);
if (INTEL_GEN(dev_priv) >= 9) {
gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE);
gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
}
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl1 & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
seq_printf(m, "RC1e Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
seq_printf(m, "RC6 Enabled: %s\n",
@ -1778,6 +1830,7 @@ static int i915_emon_status(struct seq_file *m, void *unused)
static int i915_ring_freq_table(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
int ret = 0;
int gpu_freq, ia_freq;
unsigned int max_gpu_freq, min_gpu_freq;
@ -1789,19 +1842,17 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
intel_runtime_pm_get(dev_priv);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
ret = mutex_lock_interruptible(&dev_priv->pcu_lock);
if (ret)
goto out;
if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
/* Convert GT frequency to 50 HZ units */
min_gpu_freq =
dev_priv->rps.min_freq_softlimit / GEN9_FREQ_SCALER;
max_gpu_freq =
dev_priv->rps.max_freq_softlimit / GEN9_FREQ_SCALER;
min_gpu_freq = rps->min_freq_softlimit / GEN9_FREQ_SCALER;
max_gpu_freq = rps->max_freq_softlimit / GEN9_FREQ_SCALER;
} else {
min_gpu_freq = dev_priv->rps.min_freq_softlimit;
max_gpu_freq = dev_priv->rps.max_freq_softlimit;
min_gpu_freq = rps->min_freq_softlimit;
max_gpu_freq = rps->max_freq_softlimit;
}
seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
@ -1820,7 +1871,7 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
((ia_freq >> 8) & 0xff) * 100);
}
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
out:
intel_runtime_pm_put(dev_priv);
@ -2254,25 +2305,26 @@ static int i915_rps_boost_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
struct drm_file *file;
seq_printf(m, "RPS enabled? %d\n", dev_priv->rps.enabled);
seq_printf(m, "RPS enabled? %d\n", rps->enabled);
seq_printf(m, "GPU busy? %s [%d requests]\n",
yesno(dev_priv->gt.awake), dev_priv->gt.active_requests);
seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv));
seq_printf(m, "Boosts outstanding? %d\n",
atomic_read(&dev_priv->rps.num_waiters));
atomic_read(&rps->num_waiters));
seq_printf(m, "Frequency requested %d\n",
intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
intel_gpu_freq(dev_priv, rps->cur_freq));
seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n",
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit),
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit),
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
intel_gpu_freq(dev_priv, rps->min_freq),
intel_gpu_freq(dev_priv, rps->min_freq_softlimit),
intel_gpu_freq(dev_priv, rps->max_freq_softlimit),
intel_gpu_freq(dev_priv, rps->max_freq));
seq_printf(m, " idle:%d, efficient:%d, boost:%d\n",
intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq),
intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
intel_gpu_freq(dev_priv, rps->idle_freq),
intel_gpu_freq(dev_priv, rps->efficient_freq),
intel_gpu_freq(dev_priv, rps->boost_freq));
mutex_lock(&dev->filelist_mutex);
list_for_each_entry_reverse(file, &dev->filelist, lhead) {
@ -2284,15 +2336,15 @@ static int i915_rps_boost_info(struct seq_file *m, void *data)
seq_printf(m, "%s [%d]: %d boosts\n",
task ? task->comm : "<unknown>",
task ? task->pid : -1,
atomic_read(&file_priv->rps.boosts));
atomic_read(&file_priv->rps_client.boosts));
rcu_read_unlock();
}
seq_printf(m, "Kernel (anonymous) boosts: %d\n",
atomic_read(&dev_priv->rps.boosts));
atomic_read(&rps->boosts));
mutex_unlock(&dev->filelist_mutex);
if (INTEL_GEN(dev_priv) >= 6 &&
dev_priv->rps.enabled &&
rps->enabled &&
dev_priv->gt.active_requests) {
u32 rpup, rpupei;
u32 rpdown, rpdownei;
@ -2305,13 +2357,13 @@ static int i915_rps_boost_info(struct seq_file *m, void *data)
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
rps_power_to_str(dev_priv->rps.power));
rps_power_to_str(rps->power));
seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n",
rpup && rpupei ? 100 * rpup / rpupei : 0,
dev_priv->rps.up_threshold);
rps->up_threshold);
seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n",
rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
dev_priv->rps.down_threshold);
rps->down_threshold);
} else {
seq_puts(m, "\nRPS Autotuning inactive\n");
}
@ -3238,9 +3290,9 @@ static int i915_display_info(struct seq_file *m, void *unused)
static int i915_engine_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct i915_gpu_error *error = &dev_priv->gpu_error;
struct intel_engine_cs *engine;
enum intel_engine_id id;
struct drm_printer p;
intel_runtime_pm_get(dev_priv);
@ -3249,149 +3301,9 @@ static int i915_engine_info(struct seq_file *m, void *unused)
seq_printf(m, "Global active requests: %d\n",
dev_priv->gt.active_requests);
for_each_engine(engine, dev_priv, id) {
struct intel_breadcrumbs *b = &engine->breadcrumbs;
struct drm_i915_gem_request *rq;
struct rb_node *rb;
u64 addr;
seq_printf(m, "%s\n", engine->name);
seq_printf(m, "\tcurrent seqno %x, last %x, hangcheck %x [%d ms], inflight %d\n",
intel_engine_get_seqno(engine),
intel_engine_last_submit(engine),
engine->hangcheck.seqno,
jiffies_to_msecs(jiffies - engine->hangcheck.action_timestamp),
engine->timeline->inflight_seqnos);
seq_printf(m, "\tReset count: %d\n",
i915_reset_engine_count(error, engine));
rcu_read_lock();
seq_printf(m, "\tRequests:\n");
rq = list_first_entry(&engine->timeline->requests,
struct drm_i915_gem_request, link);
if (&rq->link != &engine->timeline->requests)
print_request(m, rq, "\t\tfirst ");
rq = list_last_entry(&engine->timeline->requests,
struct drm_i915_gem_request, link);
if (&rq->link != &engine->timeline->requests)
print_request(m, rq, "\t\tlast ");
rq = i915_gem_find_active_request(engine);
if (rq) {
print_request(m, rq, "\t\tactive ");
seq_printf(m,
"\t\t[head %04x, postfix %04x, tail %04x, batch 0x%08x_%08x]\n",
rq->head, rq->postfix, rq->tail,
rq->batch ? upper_32_bits(rq->batch->node.start) : ~0u,
rq->batch ? lower_32_bits(rq->batch->node.start) : ~0u);
}
seq_printf(m, "\tRING_START: 0x%08x [0x%08x]\n",
I915_READ(RING_START(engine->mmio_base)),
rq ? i915_ggtt_offset(rq->ring->vma) : 0);
seq_printf(m, "\tRING_HEAD: 0x%08x [0x%08x]\n",
I915_READ(RING_HEAD(engine->mmio_base)) & HEAD_ADDR,
rq ? rq->ring->head : 0);
seq_printf(m, "\tRING_TAIL: 0x%08x [0x%08x]\n",
I915_READ(RING_TAIL(engine->mmio_base)) & TAIL_ADDR,
rq ? rq->ring->tail : 0);
seq_printf(m, "\tRING_CTL: 0x%08x [%s]\n",
I915_READ(RING_CTL(engine->mmio_base)),
I915_READ(RING_CTL(engine->mmio_base)) & (RING_WAIT | RING_WAIT_SEMAPHORE) ? "waiting" : "");
rcu_read_unlock();
addr = intel_engine_get_active_head(engine);
seq_printf(m, "\tACTHD: 0x%08x_%08x\n",
upper_32_bits(addr), lower_32_bits(addr));
addr = intel_engine_get_last_batch_head(engine);
seq_printf(m, "\tBBADDR: 0x%08x_%08x\n",
upper_32_bits(addr), lower_32_bits(addr));
if (i915_modparams.enable_execlists) {
const u32 *hws = &engine->status_page.page_addr[I915_HWS_CSB_BUF0_INDEX];
struct intel_engine_execlists * const execlists = &engine->execlists;
u32 ptr, read, write;
unsigned int idx;
seq_printf(m, "\tExeclist status: 0x%08x %08x\n",
I915_READ(RING_EXECLIST_STATUS_LO(engine)),
I915_READ(RING_EXECLIST_STATUS_HI(engine)));
ptr = I915_READ(RING_CONTEXT_STATUS_PTR(engine));
read = GEN8_CSB_READ_PTR(ptr);
write = GEN8_CSB_WRITE_PTR(ptr);
seq_printf(m, "\tExeclist CSB read %d [%d cached], write %d [%d from hws], interrupt posted? %s\n",
read, execlists->csb_head,
write,
intel_read_status_page(engine, intel_hws_csb_write_index(engine->i915)),
yesno(test_bit(ENGINE_IRQ_EXECLIST,
&engine->irq_posted)));
if (read >= GEN8_CSB_ENTRIES)
read = 0;
if (write >= GEN8_CSB_ENTRIES)
write = 0;
if (read > write)
write += GEN8_CSB_ENTRIES;
while (read < write) {
idx = ++read % GEN8_CSB_ENTRIES;
seq_printf(m, "\tExeclist CSB[%d]: 0x%08x [0x%08x in hwsp], context: %d [%d in hwsp]\n",
idx,
I915_READ(RING_CONTEXT_STATUS_BUF_LO(engine, idx)),
hws[idx * 2],
I915_READ(RING_CONTEXT_STATUS_BUF_HI(engine, idx)),
hws[idx * 2 + 1]);
}
rcu_read_lock();
for (idx = 0; idx < execlists_num_ports(execlists); idx++) {
unsigned int count;
rq = port_unpack(&execlists->port[idx], &count);
if (rq) {
seq_printf(m, "\t\tELSP[%d] count=%d, ",
idx, count);
print_request(m, rq, "rq: ");
} else {
seq_printf(m, "\t\tELSP[%d] idle\n",
idx);
}
}
rcu_read_unlock();
spin_lock_irq(&engine->timeline->lock);
for (rb = execlists->first; rb; rb = rb_next(rb)) {
struct i915_priolist *p =
rb_entry(rb, typeof(*p), node);
list_for_each_entry(rq, &p->requests,
priotree.link)
print_request(m, rq, "\t\tQ ");
}
spin_unlock_irq(&engine->timeline->lock);
} else if (INTEL_GEN(dev_priv) > 6) {
seq_printf(m, "\tPP_DIR_BASE: 0x%08x\n",
I915_READ(RING_PP_DIR_BASE(engine)));
seq_printf(m, "\tPP_DIR_BASE_READ: 0x%08x\n",
I915_READ(RING_PP_DIR_BASE_READ(engine)));
seq_printf(m, "\tPP_DIR_DCLV: 0x%08x\n",
I915_READ(RING_PP_DIR_DCLV(engine)));
}
spin_lock_irq(&b->rb_lock);
for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
struct intel_wait *w = rb_entry(rb, typeof(*w), node);
seq_printf(m, "\t%s [%d] waiting for %x\n",
w->tsk->comm, w->tsk->pid, w->seqno);
}
spin_unlock_irq(&b->rb_lock);
seq_puts(m, "\n");
}
p = drm_seq_file_printer(m);
for_each_engine(engine, dev_priv, id)
intel_engine_dump(engine, &p);
intel_runtime_pm_put(dev_priv);
@ -4258,8 +4170,7 @@ fault_irq_set(struct drm_i915_private *i915,
mutex_unlock(&i915->drm.struct_mutex);
/* Flush idle worker to disarm irq */
while (flush_delayed_work(&i915->gt.idle_work))
;
drain_delayed_work(&i915->gt.idle_work);
return 0;
@ -4392,7 +4303,7 @@ i915_max_freq_get(void *data, u64 *val)
if (INTEL_GEN(dev_priv) < 6)
return -ENODEV;
*val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
*val = intel_gpu_freq(dev_priv, dev_priv->gt_pm.rps.max_freq_softlimit);
return 0;
}
@ -4400,6 +4311,7 @@ static int
i915_max_freq_set(void *data, u64 val)
{
struct drm_i915_private *dev_priv = data;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
u32 hw_max, hw_min;
int ret;
@ -4408,7 +4320,7 @@ i915_max_freq_set(void *data, u64 val)
DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
ret = mutex_lock_interruptible(&dev_priv->pcu_lock);
if (ret)
return ret;
@ -4417,20 +4329,20 @@ i915_max_freq_set(void *data, u64 val)
*/
val = intel_freq_opcode(dev_priv, val);
hw_max = dev_priv->rps.max_freq;
hw_min = dev_priv->rps.min_freq;
hw_max = rps->max_freq;
hw_min = rps->min_freq;
if (val < hw_min || val > hw_max || val < dev_priv->rps.min_freq_softlimit) {
mutex_unlock(&dev_priv->rps.hw_lock);
if (val < hw_min || val > hw_max || val < rps->min_freq_softlimit) {
mutex_unlock(&dev_priv->pcu_lock);
return -EINVAL;
}
dev_priv->rps.max_freq_softlimit = val;
rps->max_freq_softlimit = val;
if (intel_set_rps(dev_priv, val))
DRM_DEBUG_DRIVER("failed to update RPS to new softlimit\n");
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
return 0;
}
@ -4447,7 +4359,7 @@ i915_min_freq_get(void *data, u64 *val)
if (INTEL_GEN(dev_priv) < 6)
return -ENODEV;
*val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
*val = intel_gpu_freq(dev_priv, dev_priv->gt_pm.rps.min_freq_softlimit);
return 0;
}
@ -4455,6 +4367,7 @@ static int
i915_min_freq_set(void *data, u64 val)
{
struct drm_i915_private *dev_priv = data;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
u32 hw_max, hw_min;
int ret;
@ -4463,7 +4376,7 @@ i915_min_freq_set(void *data, u64 val)
DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
ret = mutex_lock_interruptible(&dev_priv->pcu_lock);
if (ret)
return ret;
@ -4472,21 +4385,21 @@ i915_min_freq_set(void *data, u64 val)
*/
val = intel_freq_opcode(dev_priv, val);
hw_max = dev_priv->rps.max_freq;
hw_min = dev_priv->rps.min_freq;
hw_max = rps->max_freq;
hw_min = rps->min_freq;
if (val < hw_min ||
val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
mutex_unlock(&dev_priv->rps.hw_lock);
val > hw_max || val > rps->max_freq_softlimit) {
mutex_unlock(&dev_priv->pcu_lock);
return -EINVAL;
}
dev_priv->rps.min_freq_softlimit = val;
rps->min_freq_softlimit = val;
if (intel_set_rps(dev_priv, val))
DRM_DEBUG_DRIVER("failed to update RPS to new softlimit\n");
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
return 0;
}

48
drivers/gpu/drm/i915/i915_drv.c
View File

@ -367,9 +367,18 @@ static int i915_getparam(struct drm_device *dev, void *data,
value = i915_gem_mmap_gtt_version();
break;
case I915_PARAM_HAS_SCHEDULER:
value = dev_priv->engine[RCS] &&
dev_priv->engine[RCS]->schedule;
value = 0;
if (dev_priv->engine[RCS] && dev_priv->engine[RCS]->schedule) {
value |= I915_SCHEDULER_CAP_ENABLED;
value |= I915_SCHEDULER_CAP_PRIORITY;
if (INTEL_INFO(dev_priv)->has_logical_ring_preemption &&
i915_modparams.enable_execlists &&
!i915_modparams.enable_guc_submission)
value |= I915_SCHEDULER_CAP_PREEMPTION;
}
break;
case I915_PARAM_MMAP_VERSION:
/* Remember to bump this if the version changes! */
case I915_PARAM_HAS_GEM:
@ -606,9 +615,10 @@ static void i915_gem_fini(struct drm_i915_private *dev_priv)
intel_uc_fini_hw(dev_priv);
i915_gem_cleanup_engines(dev_priv);
i915_gem_contexts_fini(dev_priv);
i915_gem_cleanup_userptr(dev_priv);
mutex_unlock(&dev_priv->drm.struct_mutex);
i915_gem_cleanup_userptr(dev_priv);
i915_gem_drain_freed_objects(dev_priv);
WARN_ON(!list_empty(&dev_priv->contexts.list));
@ -1007,6 +1017,8 @@ static int i915_driver_init_mmio(struct drm_i915_private *dev_priv)
intel_uncore_init(dev_priv);
intel_uc_init_mmio(dev_priv);
ret = intel_engines_init_mmio(dev_priv);
if (ret)
goto err_uncore;
@ -1580,7 +1592,7 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
intel_display_set_init_power(dev_priv, false);
fw_csr = !IS_GEN9_LP(dev_priv) &&
fw_csr = !IS_GEN9_LP(dev_priv) && !hibernation &&
suspend_to_idle(dev_priv) && dev_priv->csr.dmc_payload;
/*
* In case of firmware assisted context save/restore don't manually
@ -2070,11 +2082,14 @@ static int i915_pm_resume(struct device *kdev)
/* freeze: before creating the hibernation_image */
static int i915_pm_freeze(struct device *kdev)
{
struct drm_device *dev = &kdev_to_i915(kdev)->drm;
int ret;
ret = i915_pm_suspend(kdev);
if (ret)
return ret;
if (dev->switch_power_state != DRM_SWITCH_POWER_OFF) {
ret = i915_drm_suspend(dev);
if (ret)
return ret;
}
ret = i915_gem_freeze(kdev_to_i915(kdev));
if (ret)
@ -2085,11 +2100,14 @@ static int i915_pm_freeze(struct device *kdev)
static int i915_pm_freeze_late(struct device *kdev)
{
struct drm_device *dev = &kdev_to_i915(kdev)->drm;
int ret;
ret = i915_pm_suspend_late(kdev);
if (ret)
return ret;
if (dev->switch_power_state != DRM_SWITCH_POWER_OFF) {
ret = i915_drm_suspend_late(dev, true);
if (ret)
return ret;
}
ret = i915_gem_freeze_late(kdev_to_i915(kdev));
if (ret)
@ -2485,7 +2503,7 @@ static int intel_runtime_suspend(struct device *kdev)
struct drm_i915_private *dev_priv = to_i915(dev);
int ret;
if (WARN_ON_ONCE(!(dev_priv->rps.enabled && intel_enable_rc6())))
if (WARN_ON_ONCE(!(dev_priv->gt_pm.rc6.enabled && intel_rc6_enabled())))
return -ENODEV;
if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev_priv)))
@ -2527,12 +2545,12 @@ static int intel_runtime_suspend(struct device *kdev)
intel_uncore_suspend(dev_priv);
enable_rpm_wakeref_asserts(dev_priv);
WARN_ON_ONCE(atomic_read(&dev_priv->pm.wakeref_count));
WARN_ON_ONCE(atomic_read(&dev_priv->runtime_pm.wakeref_count));
if (intel_uncore_arm_unclaimed_mmio_detection(dev_priv))
DRM_ERROR("Unclaimed access detected prior to suspending\n");
dev_priv->pm.suspended = true;
dev_priv->runtime_pm.suspended = true;
/*
* FIXME: We really should find a document that references the arguments
@ -2578,11 +2596,11 @@ static int intel_runtime_resume(struct device *kdev)
DRM_DEBUG_KMS("Resuming device\n");
WARN_ON_ONCE(atomic_read(&dev_priv->pm.wakeref_count));
WARN_ON_ONCE(atomic_read(&dev_priv->runtime_pm.wakeref_count));
disable_rpm_wakeref_asserts(dev_priv);
intel_opregion_notify_adapter(dev_priv, PCI_D0);
dev_priv->pm.suspended = false;
dev_priv->runtime_pm.suspended = false;
if (intel_uncore_unclaimed_mmio(dev_priv))
DRM_DEBUG_DRIVER("Unclaimed access during suspend, bios?\n");

83
drivers/gpu/drm/i915/i915_drv.h
View File

@ -80,8 +80,8 @@
#define DRIVER_NAME "i915"
#define DRIVER_DESC "Intel Graphics"
#define DRIVER_DATE "20170929"
#define DRIVER_TIMESTAMP 1506682238
#define DRIVER_DATE "20171012"
#define DRIVER_TIMESTAMP 1507831511
/* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
* WARN_ON()) for hw state sanity checks to check for unexpected conditions
@ -609,7 +609,7 @@ struct drm_i915_file_private {
struct intel_rps_client {
atomic_t boosts;
} rps;
} rps_client;
unsigned int bsd_engine;
@ -783,6 +783,7 @@ struct intel_csr {
func(has_l3_dpf); \
func(has_llc); \
func(has_logical_ring_contexts); \
func(has_logical_ring_preemption); \
func(has_overlay); \
func(has_pipe_cxsr); \
func(has_pooled_eu); \
@ -868,6 +869,8 @@ struct intel_device_info {
u8 num_sprites[I915_MAX_PIPES];
u8 num_scalers[I915_MAX_PIPES];
unsigned int page_sizes; /* page sizes supported by the HW */
#define DEFINE_FLAG(name) u8 name:1
DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
#undef DEFINE_FLAG
@ -981,6 +984,7 @@ struct i915_gpu_state {
pid_t pid;
u32 handle;
u32 hw_id;
int priority;
int ban_score;
int active;
int guilty;
@ -1003,6 +1007,7 @@ struct i915_gpu_state {
long jiffies;
pid_t pid;
u32 context;
int priority;
int ban_score;
u32 seqno;
u32 head;
@ -1312,7 +1317,7 @@ struct intel_rps_ei {
u32 media_c0;
};
struct intel_gen6_power_mgmt {
struct intel_rps {
/*
* work, interrupts_enabled and pm_iir are protected by
* dev_priv->irq_lock
@ -1353,20 +1358,26 @@ struct intel_gen6_power_mgmt {
enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
bool enabled;
struct delayed_work autoenable_work;
atomic_t num_waiters;
atomic_t boosts;
/* manual wa residency calculations */
struct intel_rps_ei ei;
};
/*
* Protects RPS/RC6 register access and PCU communication.
* Must be taken after struct_mutex if nested. Note that
* this lock may be held for long periods of time when
* talking to hw - so only take it when talking to hw!
*/
struct mutex hw_lock;
struct intel_rc6 {
bool enabled;
};
struct intel_llc_pstate {
bool enabled;
};
struct intel_gen6_power_mgmt {
struct intel_rps rps;
struct intel_rc6 rc6;
struct intel_llc_pstate llc_pstate;
struct delayed_work autoenable_work;
};
/* defined intel_pm.c */
@ -1508,6 +1519,11 @@ struct i915_gem_mm {
/** Usable portion of the GTT for GEM */
dma_addr_t stolen_base; /* limited to low memory (32-bit) */
/**
* tmpfs instance used for shmem backed objects
*/
struct vfsmount *gemfs;
/** PPGTT used for aliasing the PPGTT with the GTT */
struct i915_hw_ppgtt *aliasing_ppgtt;
@ -2251,8 +2267,11 @@ struct drm_i915_private {
wait_queue_head_t gmbus_wait_queue;
struct pci_dev *bridge_dev;
struct i915_gem_context *kernel_context;
struct intel_engine_cs *engine[I915_NUM_ENGINES];
/* Context used internally to idle the GPU and setup initial state */
struct i915_gem_context *kernel_context;
/* Context only to be used for injecting preemption commands */
struct i915_gem_context *preempt_context;
struct i915_vma *semaphore;
struct drm_dma_handle *status_page_dmah;
@ -2408,8 +2427,16 @@ struct drm_i915_private {
/* Cannot be determined by PCIID. You must always read a register. */
u32 edram_cap;
/* gen6+ rps state */
struct intel_gen6_power_mgmt rps;
/*
* Protects RPS/RC6 register access and PCU communication.
* Must be taken after struct_mutex if nested. Note that
* this lock may be held for long periods of time when
* talking to hw - so only take it when talking to hw!
*/
struct mutex pcu_lock;
/* gen6+ GT PM state */
struct intel_gen6_power_mgmt gt_pm;
/* ilk-only ips/rps state. Everything in here is protected by the global
* mchdev_lock in intel_pm.c */
@ -2520,7 +2547,7 @@ struct drm_i915_private {
bool distrust_bios_wm;
} wm;
struct i915_runtime_pm pm;
struct i915_runtime_pm runtime_pm;
struct {
bool initialized;
@ -2859,6 +2886,21 @@ static inline struct scatterlist *__sg_next(struct scatterlist *sg)
(((__iter).curr += PAGE_SIZE) >= (__iter).max) ? \
(__iter) = __sgt_iter(__sg_next((__iter).sgp), false), 0 : 0)
static inline unsigned int i915_sg_page_sizes(struct scatterlist *sg)
{
unsigned int page_sizes;
page_sizes = 0;
while (sg) {
GEM_BUG_ON(sg->offset);
GEM_BUG_ON(!IS_ALIGNED(sg->length, PAGE_SIZE));
page_sizes |= sg->length;
sg = __sg_next(sg);
}
return page_sizes;
}
static inline unsigned int i915_sg_segment_size(void)
{
unsigned int size = swiotlb_max_segment();
@ -3088,6 +3130,10 @@ intel_info(const struct drm_i915_private *dev_priv)
#define USES_PPGTT(dev_priv) (i915_modparams.enable_ppgtt)
#define USES_FULL_PPGTT(dev_priv) (i915_modparams.enable_ppgtt >= 2)
#define USES_FULL_48BIT_PPGTT(dev_priv) (i915_modparams.enable_ppgtt == 3)
#define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
GEM_BUG_ON((sizes) == 0); \
((sizes) & ~(dev_priv)->info.page_sizes) == 0; \
})
#define HAS_OVERLAY(dev_priv) ((dev_priv)->info.has_overlay)
#define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
@ -3504,7 +3550,8 @@ i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj,
unsigned long n);
void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
struct sg_table *pages);
struct sg_table *pages,
unsigned int sg_page_sizes);
int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
static inline int __must_check
@ -3726,8 +3773,6 @@ i915_vm_to_ppgtt(struct i915_address_space *vm)
}
/* i915_gem_fence_reg.c */
int __must_check i915_vma_get_fence(struct i915_vma *vma);
int __must_check i915_vma_put_fence(struct i915_vma *vma);
struct drm_i915_fence_reg *
i915_reserve_fence(struct drm_i915_private *dev_priv);
void i915_unreserve_fence(struct drm_i915_fence_reg *fence);

383
drivers/gpu/drm/i915/i915_gem.c
View File

@ -35,6 +35,7 @@
#include "intel_drv.h"
#include "intel_frontbuffer.h"
#include "intel_mocs.h"
#include "i915_gemfs.h"
#include <linux/dma-fence-array.h>
#include <linux/kthread.h>
#include <linux/reservation.h>
@ -161,8 +162,7 @@ i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
return 0;
}
static struct sg_table *
i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
static int i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
{
struct address_space *mapping = obj->base.filp->f_mapping;
drm_dma_handle_t *phys;
@ -170,9 +170,10 @@ i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
struct scatterlist *sg;
char *vaddr;
int i;
int err;
if (WARN_ON(i915_gem_object_needs_bit17_swizzle(obj)))
return ERR_PTR(-EINVAL);
return -EINVAL;
/* Always aligning to the object size, allows a single allocation
* to handle all possible callers, and given typical object sizes,
@ -182,7 +183,7 @@ i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
roundup_pow_of_two(obj->base.size),
roundup_pow_of_two(obj->base.size));
if (!phys)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
vaddr = phys->vaddr;
for (i = 0; i < obj->base.size / PAGE_SIZE; i++) {
@ -191,7 +192,7 @@ i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
page = shmem_read_mapping_page(mapping, i);
if (IS_ERR(page)) {
st = ERR_CAST(page);
err = PTR_ERR(page);
goto err_phys;
}
@ -208,13 +209,13 @@ i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
st = kmalloc(sizeof(*st), GFP_KERNEL);
if (!st) {
st = ERR_PTR(-ENOMEM);
err = -ENOMEM;
goto err_phys;
}
if (sg_alloc_table(st, 1, GFP_KERNEL)) {
kfree(st);
st = ERR_PTR(-ENOMEM);
err = -ENOMEM;
goto err_phys;
}
@ -226,11 +227,15 @@ i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
sg_dma_len(sg) = obj->base.size;
obj->phys_handle = phys;
return st;
__i915_gem_object_set_pages(obj, st, sg->length);
return 0;
err_phys:
drm_pci_free(obj->base.dev, phys);
return st;
return err;
}
static void __start_cpu_write(struct drm_i915_gem_object *obj)
@ -353,7 +358,7 @@ static long
i915_gem_object_wait_fence(struct dma_fence *fence,
unsigned int flags,
long timeout,
struct intel_rps_client *rps)
struct intel_rps_client *rps_client)
{
struct drm_i915_gem_request *rq;
@ -386,11 +391,11 @@ i915_gem_object_wait_fence(struct dma_fence *fence,
* forcing the clocks too high for the whole system, we only allow
* each client to waitboost once in a busy period.
*/
if (rps) {
if (rps_client) {
if (INTEL_GEN(rq->i915) >= 6)
gen6_rps_boost(rq, rps);
gen6_rps_boost(rq, rps_client);
else
rps = NULL;
rps_client = NULL;
}
timeout = i915_wait_request(rq, flags, timeout);
@ -406,7 +411,7 @@ static long
i915_gem_object_wait_reservation(struct reservation_object *resv,
unsigned int flags,
long timeout,
struct intel_rps_client *rps)
struct intel_rps_client *rps_client)
{
unsigned int seq = __read_seqcount_begin(&resv->seq);
struct dma_fence *excl;
@ -425,7 +430,7 @@ i915_gem_object_wait_reservation(struct reservation_object *resv,
for (i = 0; i < count; i++) {
timeout = i915_gem_object_wait_fence(shared[i],
flags, timeout,
rps);
rps_client);
if (timeout < 0)
break;
@ -442,7 +447,8 @@ i915_gem_object_wait_reservation(struct reservation_object *resv,
}
if (excl && timeout >= 0) {
timeout = i915_gem_object_wait_fence(excl, flags, timeout, rps);
timeout = i915_gem_object_wait_fence(excl, flags, timeout,
rps_client);
prune_fences = timeout >= 0;
}
@ -538,7 +544,7 @@ int
i915_gem_object_wait(struct drm_i915_gem_object *obj,
unsigned int flags,
long timeout,
struct intel_rps_client *rps)
struct intel_rps_client *rps_client)
{
might_sleep();
#if IS_ENABLED(CONFIG_LOCKDEP)
@ -550,7 +556,7 @@ i915_gem_object_wait(struct drm_i915_gem_object *obj,
timeout = i915_gem_object_wait_reservation(obj->resv,
flags, timeout,
rps);
rps_client);
return timeout < 0 ? timeout : 0;
}
@ -558,7 +564,7 @@ static struct intel_rps_client *to_rps_client(struct drm_file *file)
{
struct drm_i915_file_private *fpriv = file->driver_priv;
return &fpriv->rps;
return &fpriv->rps_client;
}
static int
@ -1050,7 +1056,9 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
intel_runtime_pm_get(i915);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
PIN_MAPPABLE | PIN_NONBLOCK);
PIN_MAPPABLE |
PIN_NONFAULT |
PIN_NONBLOCK);
if (!IS_ERR(vma)) {
node.start = i915_ggtt_offset(vma);
node.allocated = false;
@ -1234,7 +1242,9 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
intel_runtime_pm_get(i915);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
PIN_MAPPABLE | PIN_NONBLOCK);
PIN_MAPPABLE |
PIN_NONFAULT |
PIN_NONBLOCK);
if (!IS_ERR(vma)) {
node.start = i915_ggtt_offset(vma);
node.allocated = false;
@ -1905,22 +1915,27 @@ int i915_gem_fault(struct vm_fault *vmf)
if (ret)
goto err_unpin;
ret = i915_vma_get_fence(vma);
ret = i915_vma_pin_fence(vma);
if (ret)
goto err_unpin;
/* Mark as being mmapped into userspace for later revocation */
assert_rpm_wakelock_held(dev_priv);
if (list_empty(&obj->userfault_link))
list_add(&obj->userfault_link, &dev_priv->mm.userfault_list);
/* Finally, remap it using the new GTT offset */
ret = remap_io_mapping(area,
area->vm_start + (vma->ggtt_view.partial.offset << PAGE_SHIFT),
(ggtt->mappable_base + vma->node.start) >> PAGE_SHIFT,
min_t(u64, vma->size, area->vm_end - area->vm_start),
&ggtt->mappable);
if (ret)
goto err_fence;
/* Mark as being mmapped into userspace for later revocation */
assert_rpm_wakelock_held(dev_priv);
if (!i915_vma_set_userfault(vma) && !obj->userfault_count++)
list_add(&obj->userfault_link, &dev_priv->mm.userfault_list);
GEM_BUG_ON(!obj->userfault_count);
err_fence:
i915_vma_unpin_fence(vma);
err_unpin:
__i915_vma_unpin(vma);
err_unlock:
@ -1972,6 +1987,25 @@ err:
return ret;
}
static void __i915_gem_object_release_mmap(struct drm_i915_gem_object *obj)
{
struct i915_vma *vma;
GEM_BUG_ON(!obj->userfault_count);
obj->userfault_count = 0;
list_del(&obj->userfault_link);
drm_vma_node_unmap(&obj->base.vma_node,
obj->base.dev->anon_inode->i_mapping);
list_for_each_entry(vma, &obj->vma_list, obj_link) {
if (!i915_vma_is_ggtt(vma))
break;
i915_vma_unset_userfault(vma);
}
}
/**
* i915_gem_release_mmap - remove physical page mappings
* @obj: obj in question
@ -2002,12 +2036,10 @@ i915_gem_release_mmap(struct drm_i915_gem_object *obj)
lockdep_assert_held(&i915->drm.struct_mutex);
intel_runtime_pm_get(i915);
if (list_empty(&obj->userfault_link))
if (!obj->userfault_count)
goto out;
list_del_init(&obj->userfault_link);
drm_vma_node_unmap(&obj->base.vma_node,
obj->base.dev->anon_inode->i_mapping);
__i915_gem_object_release_mmap(obj);
/* Ensure that the CPU's PTE are revoked and there are not outstanding
* memory transactions from userspace before we return. The TLB
@ -2035,11 +2067,8 @@ void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv)
*/
list_for_each_entry_safe(obj, on,
&dev_priv->mm.userfault_list, userfault_link) {
list_del_init(&obj->userfault_link);
drm_vma_node_unmap(&obj->base.vma_node,
obj->base.dev->anon_inode->i_mapping);
}
&dev_priv->mm.userfault_list, userfault_link)
__i915_gem_object_release_mmap(obj);
/* The fence will be lost when the device powers down. If any were
* in use by hardware (i.e. they are pinned), we should not be powering
@ -2062,7 +2091,7 @@ void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv)
if (!reg->vma)
continue;
GEM_BUG_ON(!list_empty(&reg->vma->obj->userfault_link));
GEM_BUG_ON(i915_vma_has_userfault(reg->vma));
reg->dirty = true;
}
}
@ -2261,6 +2290,8 @@ void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj,
if (!IS_ERR(pages))
obj->ops->put_pages(obj, pages);
obj->mm.page_sizes.phys = obj->mm.page_sizes.sg = 0;
unlock:
mutex_unlock(&obj->mm.lock);
}
@ -2291,8 +2322,7 @@ static bool i915_sg_trim(struct sg_table *orig_st)
return true;
}
static struct sg_table *
i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
static int i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
{
struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
const unsigned long page_count = obj->base.size / PAGE_SIZE;
@ -2304,6 +2334,7 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
struct page *page;
unsigned long last_pfn = 0; /* suppress gcc warning */
unsigned int max_segment = i915_sg_segment_size();
unsigned int sg_page_sizes;
gfp_t noreclaim;
int ret;
@ -2316,12 +2347,12 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
st = kmalloc(sizeof(*st), GFP_KERNEL);
if (st == NULL)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
rebuild_st:
if (sg_alloc_table(st, page_count, GFP_KERNEL)) {
kfree(st);
return ERR_PTR(-ENOMEM);
return -ENOMEM;
}
/* Get the list of pages out of our struct file. They'll be pinned
@ -2335,6 +2366,7 @@ rebuild_st:
sg = st->sgl;
st->nents = 0;
sg_page_sizes = 0;
for (i = 0; i < page_count; i++) {
const unsigned int shrink[] = {
I915_SHRINK_BOUND | I915_SHRINK_UNBOUND | I915_SHRINK_PURGEABLE,
@ -2387,8 +2419,10 @@ rebuild_st:
if (!i ||
sg->length >= max_segment ||
page_to_pfn(page) != last_pfn + 1) {
if (i)
if (i) {
sg_page_sizes |= sg->length;
sg = sg_next(sg);
}
st->nents++;
sg_set_page(sg, page, PAGE_SIZE, 0);
} else {
@ -2399,8 +2433,10 @@ rebuild_st:
/* Check that the i965g/gm workaround works. */
WARN_ON((gfp & __GFP_DMA32) && (last_pfn >= 0x00100000UL));
}
if (sg) /* loop terminated early; short sg table */
if (sg) { /* loop terminated early; short sg table */
sg_page_sizes |= sg->length;
sg_mark_end(sg);
}
/* Trim unused sg entries to avoid wasting memory. */
i915_sg_trim(st);
@ -2429,7 +2465,9 @@ rebuild_st:
if (i915_gem_object_needs_bit17_swizzle(obj))
i915_gem_object_do_bit_17_swizzle(obj, st);
return st;
__i915_gem_object_set_pages(obj, st, sg_page_sizes);
return 0;
err_sg:
sg_mark_end(sg);
@ -2450,12 +2488,17 @@ err_pages:
if (ret == -ENOSPC)
ret = -ENOMEM;
return ERR_PTR(ret);
return ret;
}
void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
struct sg_table *pages)
struct sg_table *pages,
unsigned int sg_page_sizes)
{
struct drm_i915_private *i915 = to_i915(obj->base.dev);
unsigned long supported = INTEL_INFO(i915)->page_sizes;
int i;
lockdep_assert_held(&obj->mm.lock);
obj->mm.get_page.sg_pos = pages->sgl;
@ -2469,23 +2512,40 @@ void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
__i915_gem_object_pin_pages(obj);
obj->mm.quirked = true;
}
GEM_BUG_ON(!sg_page_sizes);
obj->mm.page_sizes.phys = sg_page_sizes;
/*
* Calculate the supported page-sizes which fit into the given
* sg_page_sizes. This will give us the page-sizes which we may be able
* to use opportunistically when later inserting into the GTT. For
* example if phys=2G, then in theory we should be able to use 1G, 2M,
* 64K or 4K pages, although in practice this will depend on a number of
* other factors.
*/
obj->mm.page_sizes.sg = 0;
for_each_set_bit(i, &supported, ilog2(I915_GTT_MAX_PAGE_SIZE) + 1) {
if (obj->mm.page_sizes.phys & ~0u << i)
obj->mm.page_sizes.sg |= BIT(i);
}
GEM_BUG_ON(!HAS_PAGE_SIZES(i915, obj->mm.page_sizes.sg));
}
static int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
{
struct sg_table *pages;
int err;
if (unlikely(obj->mm.madv != I915_MADV_WILLNEED)) {
DRM_DEBUG("Attempting to obtain a purgeable object\n");
return -EFAULT;
}
pages = obj->ops->get_pages(obj);
if (unlikely(IS_ERR(pages)))
return PTR_ERR(pages);
err = obj->ops->get_pages(obj);
GEM_BUG_ON(!err && IS_ERR_OR_NULL(obj->mm.pages));
__i915_gem_object_set_pages(obj, pages);
return 0;
return err;
}
/* Ensure that the associated pages are gathered from the backing storage
@ -2796,7 +2856,17 @@ i915_gem_reset_prepare_engine(struct intel_engine_cs *engine)
{
struct drm_i915_gem_request *request = NULL;
/* Prevent the signaler thread from updating the request
/*
* During the reset sequence, we must prevent the engine from
* entering RC6. As the context state is undefined until we restart
* the engine, if it does enter RC6 during the reset, the state
* written to the powercontext is undefined and so we may lose
* GPU state upon resume, i.e. fail to restart after a reset.
*/
intel_uncore_forcewake_get(engine->i915, FORCEWAKE_ALL);
/*
* Prevent the signaler thread from updating the request
* state (by calling dma_fence_signal) as we are processing
* the reset. The write from the GPU of the seqno is
* asynchronous and the signaler thread may see a different
@ -2807,7 +2877,8 @@ i915_gem_reset_prepare_engine(struct intel_engine_cs *engine)
*/
kthread_park(engine->breadcrumbs.signaler);
/* Prevent request submission to the hardware until we have
/*
* Prevent request submission to the hardware until we have
* completed the reset in i915_gem_reset_finish(). If a request
* is completed by one engine, it may then queue a request
* to a second via its engine->irq_tasklet *just* as we are
@ -2997,6 +3068,8 @@ void i915_gem_reset_finish_engine(struct intel_engine_cs *engine)
{
tasklet_enable(&engine->execlists.irq_tasklet);
kthread_unpark(engine->breadcrumbs.signaler);
intel_uncore_forcewake_put(engine->i915, FORCEWAKE_ALL);
}
void i915_gem_reset_finish(struct drm_i915_private *dev_priv)
@ -3016,49 +3089,76 @@ static void nop_submit_request(struct drm_i915_gem_request *request)
{
GEM_BUG_ON(!i915_terminally_wedged(&request->i915->gpu_error));
dma_fence_set_error(&request->fence, -EIO);
i915_gem_request_submit(request);
}
static void nop_complete_submit_request(struct drm_i915_gem_request *request)
{
unsigned long flags;
GEM_BUG_ON(!i915_terminally_wedged(&request->i915->gpu_error));
dma_fence_set_error(&request->fence, -EIO);
spin_lock_irqsave(&request->engine->timeline->lock, flags);
__i915_gem_request_submit(request);
intel_engine_init_global_seqno(request->engine, request->global_seqno);
spin_unlock_irqrestore(&request->engine->timeline->lock, flags);
}
static void engine_set_wedged(struct intel_engine_cs *engine)
void i915_gem_set_wedged(struct drm_i915_private *i915)
{
/* We need to be sure that no thread is running the old callback as
* we install the nop handler (otherwise we would submit a request
* to hardware that will never complete). In order to prevent this
* race, we wait until the machine is idle before making the swap
* (using stop_machine()).
*/
engine->submit_request = nop_submit_request;
/* Mark all executing requests as skipped */
engine->cancel_requests(engine);
/* Mark all pending requests as complete so that any concurrent
* (lockless) lookup doesn't try and wait upon the request as we
* reset it.
*/
intel_engine_init_global_seqno(engine,
intel_engine_last_submit(engine));
}
static int __i915_gem_set_wedged_BKL(void *data)
{
struct drm_i915_private *i915 = data;
struct intel_engine_cs *engine;
enum intel_engine_id id;
/*
* First, stop submission to hw, but do not yet complete requests by
* rolling the global seqno forward (since this would complete requests
* for which we haven't set the fence error to EIO yet).
*/
for_each_engine(engine, i915, id)
engine_set_wedged(engine);
engine->submit_request = nop_submit_request;
/*
* Make sure no one is running the old callback before we proceed with
* cancelling requests and resetting the completion tracking. Otherwise
* we might submit a request to the hardware which never completes.
*/
synchronize_rcu();
for_each_engine(engine, i915, id) {
/* Mark all executing requests as skipped */
engine->cancel_requests(engine);
/*
* Only once we've force-cancelled all in-flight requests can we
* start to complete all requests.
*/
engine->submit_request = nop_complete_submit_request;
}
/*
* Make sure no request can slip through without getting completed by
* either this call here to intel_engine_init_global_seqno, or the one
* in nop_complete_submit_request.
*/
synchronize_rcu();
for_each_engine(engine, i915, id) {
unsigned long flags;
/* Mark all pending requests as complete so that any concurrent
* (lockless) lookup doesn't try and wait upon the request as we
* reset it.
*/
spin_lock_irqsave(&engine->timeline->lock, flags);
intel_engine_init_global_seqno(engine,
intel_engine_last_submit(engine));
spin_unlock_irqrestore(&engine->timeline->lock, flags);
}
set_bit(I915_WEDGED, &i915->gpu_error.flags);
wake_up_all(&i915->gpu_error.reset_queue);
return 0;
}
void i915_gem_set_wedged(struct drm_i915_private *dev_priv)
{
stop_machine(__i915_gem_set_wedged_BKL, dev_priv, NULL);
}
bool i915_gem_unset_wedged(struct drm_i915_private *i915)
@ -3959,42 +4059,47 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
lockdep_assert_held(&obj->base.dev->struct_mutex);
if (!view && flags & PIN_MAPPABLE) {
/* If the required space is larger than the available
* aperture, we will not able to find a slot for the
* object and unbinding the object now will be in
* vain. Worse, doing so may cause us to ping-pong
* the object in and out of the Global GTT and
* waste a lot of cycles under the mutex.
*/
if (obj->base.size > dev_priv->ggtt.mappable_end)
return ERR_PTR(-E2BIG);
/* If NONBLOCK is set the caller is optimistically
* trying to cache the full object within the mappable
* aperture, and *must* have a fallback in place for
* situations where we cannot bind the object. We
* can be a little more lax here and use the fallback
* more often to avoid costly migrations of ourselves
* and other objects within the aperture.
*
* Half-the-aperture is used as a simple heuristic.
* More interesting would to do search for a free
* block prior to making the commitment to unbind.
* That caters for the self-harm case, and with a
* little more heuristics (e.g. NOFAULT, NOEVICT)
* we could try to minimise harm to others.
*/
if (flags & PIN_NONBLOCK &&
obj->base.size > dev_priv->ggtt.mappable_end / 2)
return ERR_PTR(-ENOSPC);
}
vma = i915_vma_instance(obj, vm, view);
if (unlikely(IS_ERR(vma)))
return vma;
if (i915_vma_misplaced(vma, size, alignment, flags)) {
if (flags & PIN_NONBLOCK &&
(i915_vma_is_pinned(vma) || i915_vma_is_active(vma)))
return ERR_PTR(-ENOSPC);
if (flags & PIN_NONBLOCK) {
if (i915_vma_is_pinned(vma) || i915_vma_is_active(vma))
return ERR_PTR(-ENOSPC);
if (flags & PIN_MAPPABLE) {
/* If the required space is larger than the available
* aperture, we will not able to find a slot for the
* object and unbinding the object now will be in
* vain. Worse, doing so may cause us to ping-pong
* the object in and out of the Global GTT and
* waste a lot of cycles under the mutex.
*/
if (vma->fence_size > dev_priv->ggtt.mappable_end)
return ERR_PTR(-E2BIG);
/* If NONBLOCK is set the caller is optimistically
* trying to cache the full object within the mappable
* aperture, and *must* have a fallback in place for
* situations where we cannot bind the object. We
* can be a little more lax here and use the fallback
* more often to avoid costly migrations of ourselves
* and other objects within the aperture.
*
* Half-the-aperture is used as a simple heuristic.
* More interesting would to do search for a free
* block prior to making the commitment to unbind.
* That caters for the self-harm case, and with a
* little more heuristics (e.g. NOFAULT, NOEVICT)
* we could try to minimise harm to others.
*/
if (flags & PIN_NONBLOCK &&
if (flags & PIN_MAPPABLE &&
vma->fence_size > dev_priv->ggtt.mappable_end / 2)
return ERR_PTR(-ENOSPC);
}
@ -4221,7 +4326,6 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj,
mutex_init(&obj->mm.lock);
INIT_LIST_HEAD(&obj->global_link);
INIT_LIST_HEAD(&obj->userfault_link);
INIT_LIST_HEAD(&obj->vma_list);
INIT_LIST_HEAD(&obj->lut_list);
INIT_LIST_HEAD(&obj->batch_pool_link);
@ -4251,6 +4355,30 @@ static const struct drm_i915_gem_object_ops i915_gem_object_ops = {
.pwrite = i915_gem_object_pwrite_gtt,
};
static int i915_gem_object_create_shmem(struct drm_device *dev,
struct drm_gem_object *obj,
size_t size)
{
struct drm_i915_private *i915 = to_i915(dev);
unsigned long flags = VM_NORESERVE;
struct file *filp;
drm_gem_private_object_init(dev, obj, size);
if (i915->mm.gemfs)
filp = shmem_file_setup_with_mnt(i915->mm.gemfs, "i915", size,
flags);
else
filp = shmem_file_setup("i915", size, flags);
if (IS_ERR(filp))
return PTR_ERR(filp);
obj->filp = filp;
return 0;
}
struct drm_i915_gem_object *
i915_gem_object_create(struct drm_i915_private *dev_priv, u64 size)
{
@ -4275,7 +4403,7 @@ i915_gem_object_create(struct drm_i915_private *dev_priv, u64 size)
if (obj == NULL)
return ERR_PTR(-ENOMEM);
ret = drm_gem_object_init(&dev_priv->drm, &obj->base, size);
ret = i915_gem_object_create_shmem(&dev_priv->drm, &obj->base, size);
if (ret)
goto fail;
@ -4378,6 +4506,7 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915,
llist_for_each_entry_safe(obj, on, freed, freed) {
GEM_BUG_ON(obj->bind_count);
GEM_BUG_ON(obj->userfault_count);
GEM_BUG_ON(atomic_read(&obj->frontbuffer_bits));
GEM_BUG_ON(!list_empty(&obj->lut_list));
@ -4547,8 +4676,7 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
/* As the idle_work is rearming if it detects a race, play safe and
* repeat the flush until it is definitely idle.
*/
while (flush_delayed_work(&dev_priv->gt.idle_work))
;
drain_delayed_work(&dev_priv->gt.idle_work);
/* Assert that we sucessfully flushed all the work and
* reset the GPU back to its idle, low power state.
@ -4595,6 +4723,7 @@ void i915_gem_resume(struct drm_i915_private *dev_priv)
mutex_lock(&dev->struct_mutex);
i915_gem_restore_gtt_mappings(dev_priv);
i915_gem_restore_fences(dev_priv);
/* As we didn't flush the kernel context before suspend, we cannot
* guarantee that the context image is complete. So let's just reset
@ -4757,6 +4886,15 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
mutex_lock(&dev_priv->drm.struct_mutex);
/*
* We need to fallback to 4K pages since gvt gtt handling doesn't
* support huge page entries - we will need to check either hypervisor
* mm can support huge guest page or just do emulation in gvt.
*/
if (intel_vgpu_active(dev_priv))
mkwrite_device_info(dev_priv)->page_sizes =
I915_GTT_PAGE_SIZE_4K;
dev_priv->mm.unordered_timeline = dma_fence_context_alloc(1);
if (!i915_modparams.enable_execlists) {
@ -4914,6 +5052,10 @@ i915_gem_load_init(struct drm_i915_private *dev_priv)
spin_lock_init(&dev_priv->fb_tracking.lock);
err = i915_gemfs_init(dev_priv);
if (err)
DRM_NOTE("Unable to create a private tmpfs mount, hugepage support will be disabled(%d).\n", err);
return 0;
err_priorities:
@ -4952,6 +5094,8 @@ void i915_gem_load_cleanup(struct drm_i915_private *dev_priv)
/* And ensure that our DESTROY_BY_RCU slabs are truly destroyed */
rcu_barrier();
i915_gemfs_fini(dev_priv);
}
int i915_gem_freeze(struct drm_i915_private *dev_priv)
@ -5341,6 +5485,7 @@ err_unlock:
#include "selftests/scatterlist.c"
#include "selftests/mock_gem_device.c"
#include "selftests/huge_gem_object.c"
#include "selftests/huge_pages.c"
#include "selftests/i915_gem_object.c"
#include "selftests/i915_gem_coherency.c"
#endif

101
drivers/gpu/drm/i915/i915_gem_context.c
View File

@ -416,14 +416,43 @@ out:
return ctx;
}
int i915_gem_contexts_init(struct drm_i915_private *dev_priv)
static struct i915_gem_context *
create_kernel_context(struct drm_i915_private *i915, int prio)
{
struct i915_gem_context *ctx;
/* Init should only be called once per module load. Eventually the
* restriction on the context_disabled check can be loosened. */
if (WARN_ON(dev_priv->kernel_context))
return 0;
ctx = i915_gem_create_context(i915, NULL);
if (IS_ERR(ctx))
return ctx;
i915_gem_context_clear_bannable(ctx);
ctx->priority = prio;
ctx->ring_size = PAGE_SIZE;
GEM_BUG_ON(!i915_gem_context_is_kernel(ctx));
return ctx;
}
static void
destroy_kernel_context(struct i915_gem_context **ctxp)
{
struct i915_gem_context *ctx;
/* Keep the context ref so that we can free it immediately ourselves */
ctx = i915_gem_context_get(fetch_and_zero(ctxp));
GEM_BUG_ON(!i915_gem_context_is_kernel(ctx));
context_close(ctx);
i915_gem_context_free(ctx);
}
int i915_gem_contexts_init(struct drm_i915_private *dev_priv)
{
struct i915_gem_context *ctx;
int err;
GEM_BUG_ON(dev_priv->kernel_context);
INIT_LIST_HEAD(&dev_priv->contexts.list);
INIT_WORK(&dev_priv->contexts.free_work, contexts_free_worker);
@ -441,28 +470,38 @@ int i915_gem_contexts_init(struct drm_i915_private *dev_priv)
BUILD_BUG_ON(MAX_CONTEXT_HW_ID > INT_MAX);
ida_init(&dev_priv->contexts.hw_ida);
ctx = i915_gem_create_context(dev_priv, NULL);
/* lowest priority; idle task */
ctx = create_kernel_context(dev_priv, I915_PRIORITY_MIN);
if (IS_ERR(ctx)) {
DRM_ERROR("Failed to create default global context (error %ld)\n",
PTR_ERR(ctx));
return PTR_ERR(ctx);
DRM_ERROR("Failed to create default global context\n");
err = PTR_ERR(ctx);
goto err;
}
/* For easy recognisablity, we want the kernel context to be 0 and then
/*
* For easy recognisablity, we want the kernel context to be 0 and then
* all user contexts will have non-zero hw_id.
*/
GEM_BUG_ON(ctx->hw_id);
i915_gem_context_clear_bannable(ctx);
ctx->priority = I915_PRIORITY_MIN; /* lowest priority; idle task */
dev_priv->kernel_context = ctx;
GEM_BUG_ON(!i915_gem_context_is_kernel(ctx));
/* highest priority; preempting task */
ctx = create_kernel_context(dev_priv, INT_MAX);
if (IS_ERR(ctx)) {
DRM_ERROR("Failed to create default preempt context\n");
err = PTR_ERR(ctx);
goto err_kernel_context;
}
dev_priv->preempt_context = ctx;
DRM_DEBUG_DRIVER("%s context support initialized\n",
dev_priv->engine[RCS]->context_size ? "logical" :
"fake");
return 0;
err_kernel_context:
destroy_kernel_context(&dev_priv->kernel_context);
err:
return err;
}
void i915_gem_contexts_lost(struct drm_i915_private *dev_priv)
@ -507,15 +546,10 @@ void i915_gem_contexts_lost(struct drm_i915_private *dev_priv)
void i915_gem_contexts_fini(struct drm_i915_private *i915)
{
struct i915_gem_context *ctx;
lockdep_assert_held(&i915->drm.struct_mutex);
/* Keep the context so that we can free it immediately ourselves */
ctx = i915_gem_context_get(fetch_and_zero(&i915->kernel_context));
GEM_BUG_ON(!i915_gem_context_is_kernel(ctx));
context_close(ctx);
i915_gem_context_free(ctx);
destroy_kernel_context(&i915->preempt_context);
destroy_kernel_context(&i915->kernel_context);
/* Must free all deferred contexts (via flush_workqueue) first */
ida_destroy(&i915->contexts.hw_ida);
@ -1036,6 +1070,9 @@ int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
case I915_CONTEXT_PARAM_BANNABLE:
args->value = i915_gem_context_is_bannable(ctx);
break;
case I915_CONTEXT_PARAM_PRIORITY:
args->value = ctx->priority;
break;
default:
ret = -EINVAL;
break;
@ -1091,6 +1128,26 @@ int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
else
i915_gem_context_clear_bannable(ctx);
break;
case I915_CONTEXT_PARAM_PRIORITY:
{
int priority = args->value;
if (args->size)
ret = -EINVAL;
else if (!to_i915(dev)->engine[RCS]->schedule)
ret = -ENODEV;
else if (priority > I915_CONTEXT_MAX_USER_PRIORITY ||
priority < I915_CONTEXT_MIN_USER_PRIORITY)
ret = -EINVAL;
else if (priority > I915_CONTEXT_DEFAULT_PRIORITY &&
!capable(CAP_SYS_NICE))
ret = -EPERM;
else
ctx->priority = priority;
}
break;
default:
ret = -EINVAL;
break;

18
drivers/gpu/drm/i915/i915_gem_dmabuf.c
View File

@ -256,11 +256,21 @@ struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
return drm_gem_dmabuf_export(dev, &exp_info);
}
static struct sg_table *
i915_gem_object_get_pages_dmabuf(struct drm_i915_gem_object *obj)
static int i915_gem_object_get_pages_dmabuf(struct drm_i915_gem_object *obj)
{
return dma_buf_map_attachment(obj->base.import_attach,
DMA_BIDIRECTIONAL);
struct sg_table *pages;
unsigned int sg_page_sizes;
pages = dma_buf_map_attachment(obj->base.import_attach,
DMA_BIDIRECTIONAL);
if (IS_ERR(pages))
return PTR_ERR(pages);
sg_page_sizes = i915_sg_page_sizes(pages->sgl);
__i915_gem_object_set_pages(obj, pages, sg_page_sizes);
return 0;
}
static void i915_gem_object_put_pages_dmabuf(struct drm_i915_gem_object *obj,

7
drivers/gpu/drm/i915/i915_gem_evict.c
View File

@ -82,7 +82,7 @@ mark_free(struct drm_mm_scan *scan,
if (i915_vma_is_pinned(vma))
return false;
if (flags & PIN_NONFAULT && !list_empty(&vma->obj->userfault_link))
if (flags & PIN_NONFAULT && i915_vma_has_userfault(vma))
return false;
list_add(&vma->evict_link, unwind);
@ -315,6 +315,11 @@ int i915_gem_evict_for_node(struct i915_address_space *vm,
break;
}
if (flags & PIN_NONFAULT && i915_vma_has_userfault(vma)) {
ret = -ENOSPC;
break;
}
/* Overlap of objects in the same batch? */
if (i915_vma_is_pinned(vma)) {
ret = -ENOSPC;

14
drivers/gpu/drm/i915/i915_gem_execbuffer.c
View File

@ -367,12 +367,12 @@ eb_pin_vma(struct i915_execbuffer *eb,
return false;
if (unlikely(exec_flags & EXEC_OBJECT_NEEDS_FENCE)) {
if (unlikely(i915_vma_get_fence(vma))) {
if (unlikely(i915_vma_pin_fence(vma))) {
i915_vma_unpin(vma);
return false;
}
if (i915_vma_pin_fence(vma))
if (vma->fence)
exec_flags |= __EXEC_OBJECT_HAS_FENCE;
}
@ -385,7 +385,7 @@ static inline void __eb_unreserve_vma(struct i915_vma *vma, unsigned int flags)
GEM_BUG_ON(!(flags & __EXEC_OBJECT_HAS_PIN));
if (unlikely(flags & __EXEC_OBJECT_HAS_FENCE))
i915_vma_unpin_fence(vma);
__i915_vma_unpin_fence(vma);
__i915_vma_unpin(vma);
}
@ -563,13 +563,13 @@ static int eb_reserve_vma(const struct i915_execbuffer *eb,
}
if (unlikely(exec_flags & EXEC_OBJECT_NEEDS_FENCE)) {
err = i915_vma_get_fence(vma);
err = i915_vma_pin_fence(vma);
if (unlikely(err)) {
i915_vma_unpin(vma);
return err;
}
if (i915_vma_pin_fence(vma))
if (vma->fence)
exec_flags |= __EXEC_OBJECT_HAS_FENCE;
}
@ -974,7 +974,9 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
return ERR_PTR(err);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
PIN_MAPPABLE | PIN_NONBLOCK);
PIN_MAPPABLE |
PIN_NONBLOCK |
PIN_NONFAULT);
if (IS_ERR(vma)) {
memset(&cache->node, 0, sizeof(cache->node));
err = drm_mm_insert_node_in_range

40
drivers/gpu/drm/i915/i915_gem_fence_reg.c
View File

@ -240,7 +240,8 @@ static int fence_update(struct drm_i915_fence_reg *fence,
/* Ensure that all userspace CPU access is completed before
* stealing the fence.
*/
i915_gem_release_mmap(fence->vma->obj);
GEM_BUG_ON(fence->vma->fence != fence);
i915_vma_revoke_mmap(fence->vma);
fence->vma->fence = NULL;
fence->vma = NULL;
@ -280,8 +281,7 @@ static int fence_update(struct drm_i915_fence_reg *fence,
*
* 0 on success, negative error code on failure.
*/
int
i915_vma_put_fence(struct i915_vma *vma)
int i915_vma_put_fence(struct i915_vma *vma)
{
struct drm_i915_fence_reg *fence = vma->fence;
@ -299,6 +299,8 @@ static struct drm_i915_fence_reg *fence_find(struct drm_i915_private *dev_priv)
struct drm_i915_fence_reg *fence;
list_for_each_entry(fence, &dev_priv->mm.fence_list, link) {
GEM_BUG_ON(fence->vma && fence->vma->fence != fence);
if (fence->pin_count)
continue;
@ -313,7 +315,7 @@ static struct drm_i915_fence_reg *fence_find(struct drm_i915_private *dev_priv)
}
/**
* i915_vma_get_fence - set up fencing for a vma
* i915_vma_pin_fence - set up fencing for a vma
* @vma: vma to map through a fence reg
*
* When mapping objects through the GTT, userspace wants to be able to write
@ -331,10 +333,11 @@ static struct drm_i915_fence_reg *fence_find(struct drm_i915_private *dev_priv)
* 0 on success, negative error code on failure.
*/
int
i915_vma_get_fence(struct i915_vma *vma)
i915_vma_pin_fence(struct i915_vma *vma)
{
struct drm_i915_fence_reg *fence;
struct i915_vma *set = i915_gem_object_is_tiled(vma->obj) ? vma : NULL;
int err;
/* Note that we revoke fences on runtime suspend. Therefore the user
* must keep the device awake whilst using the fence.
@ -344,6 +347,8 @@ i915_vma_get_fence(struct i915_vma *vma)
/* Just update our place in the LRU if our fence is getting reused. */
if (vma->fence) {
fence = vma->fence;
GEM_BUG_ON(fence->vma != vma);
fence->pin_count++;
if (!fence->dirty) {
list_move_tail(&fence->link,
&fence->i915->mm.fence_list);
@ -353,10 +358,25 @@ i915_vma_get_fence(struct i915_vma *vma)
fence = fence_find(vma->vm->i915);
if (IS_ERR(fence))
return PTR_ERR(fence);
GEM_BUG_ON(fence->pin_count);
fence->pin_count++;
} else
return 0;
return fence_update(fence, set);
err = fence_update(fence, set);
if (err)
goto out_unpin;
GEM_BUG_ON(fence->vma != set);
GEM_BUG_ON(vma->fence != (set ? fence : NULL));
if (set)
return 0;
out_unpin:
fence->pin_count--;
return err;
}
/**
@ -429,8 +449,10 @@ void i915_gem_revoke_fences(struct drm_i915_private *dev_priv)
for (i = 0; i < dev_priv->num_fence_regs; i++) {
struct drm_i915_fence_reg *fence = &dev_priv->fence_regs[i];
GEM_BUG_ON(fence->vma && fence->vma->fence != fence);
if (fence->vma)
i915_gem_release_mmap(fence->vma->obj);
i915_vma_revoke_mmap(fence->vma);
}
}
@ -450,13 +472,15 @@ void i915_gem_restore_fences(struct drm_i915_private *dev_priv)
struct drm_i915_fence_reg *reg = &dev_priv->fence_regs[i];
struct i915_vma *vma = reg->vma;
GEM_BUG_ON(vma && vma->fence != reg);
/*
* Commit delayed tiling changes if we have an object still
* attached to the fence, otherwise just clear the fence.
*/
if (vma && !i915_gem_object_is_tiled(vma->obj)) {
GEM_BUG_ON(!reg->dirty);
GEM_BUG_ON(!list_empty(&vma->obj->userfault_link));
GEM_BUG_ON(i915_vma_has_userfault(vma));
list_move(&reg->link, &dev_priv->mm.fence_list);
vma->fence = NULL;

285
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -135,11 +135,12 @@ static inline void i915_ggtt_invalidate(struct drm_i915_private *i915)
int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
int enable_ppgtt)
{
bool has_aliasing_ppgtt;
bool has_full_ppgtt;
bool has_full_48bit_ppgtt;
has_aliasing_ppgtt = dev_priv->info.has_aliasing_ppgtt;
if (!dev_priv->info.has_aliasing_ppgtt)
return 0;
has_full_ppgtt = dev_priv->info.has_full_ppgtt;
has_full_48bit_ppgtt = dev_priv->info.has_full_48bit_ppgtt;
@ -149,9 +150,6 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
has_full_48bit_ppgtt = intel_vgpu_has_full_48bit_ppgtt(dev_priv);
}
if (!has_aliasing_ppgtt)
return 0;
/*
* We don't allow disabling PPGTT for gen9+ as it's a requirement for
* execlists, the sole mechanism available to submit work.
@ -188,7 +186,7 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
return 2;
}
return has_aliasing_ppgtt ? 1 : 0;
return 1;
}
static int ppgtt_bind_vma(struct i915_vma *vma,
@ -205,8 +203,6 @@ static int ppgtt_bind_vma(struct i915_vma *vma,
return ret;
}
vma->pages = vma->obj->mm.pages;
/* Currently applicable only to VLV */
pte_flags = 0;
if (vma->obj->gt_ro)
@ -222,6 +218,30 @@ static void ppgtt_unbind_vma(struct i915_vma *vma)
vma->vm->clear_range(vma->vm, vma->node.start, vma->size);
}
static int ppgtt_set_pages(struct i915_vma *vma)
{
GEM_BUG_ON(vma->pages);
vma->pages = vma->obj->mm.pages;
vma->page_sizes = vma->obj->mm.page_sizes;
return 0;
}
static void clear_pages(struct i915_vma *vma)
{
GEM_BUG_ON(!vma->pages);
if (vma->pages != vma->obj->mm.pages) {
sg_free_table(vma->pages);
kfree(vma->pages);
}
vma->pages = NULL;
memset(&vma->page_sizes, 0, sizeof(vma->page_sizes));
}
static gen8_pte_t gen8_pte_encode(dma_addr_t addr,
enum i915_cache_level level)
{
@ -497,22 +517,63 @@ static void fill_page_dma_32(struct i915_address_space *vm,
static int
setup_scratch_page(struct i915_address_space *vm, gfp_t gfp)
{
struct page *page;
struct page *page = NULL;
dma_addr_t addr;
int order;
page = alloc_page(gfp | __GFP_ZERO);
if (unlikely(!page))
return -ENOMEM;
/*
* In order to utilize 64K pages for an object with a size < 2M, we will
* need to support a 64K scratch page, given that every 16th entry for a
* page-table operating in 64K mode must point to a properly aligned 64K
* region, including any PTEs which happen to point to scratch.
*
* This is only relevant for the 48b PPGTT where we support
* huge-gtt-pages, see also i915_vma_insert().
*
* TODO: we should really consider write-protecting the scratch-page and
* sharing between ppgtt
*/
if (i915_vm_is_48bit(vm) &&
HAS_PAGE_SIZES(vm->i915, I915_GTT_PAGE_SIZE_64K)) {
order = get_order(I915_GTT_PAGE_SIZE_64K);
page = alloc_pages(gfp | __GFP_ZERO | __GFP_NOWARN, order);
if (page) {
addr = dma_map_page(vm->dma, page, 0,
I915_GTT_PAGE_SIZE_64K,
PCI_DMA_BIDIRECTIONAL);
if (unlikely(dma_mapping_error(vm->dma, addr))) {
__free_pages(page, order);
page = NULL;
}
addr = dma_map_page(vm->dma, page, 0, PAGE_SIZE,
PCI_DMA_BIDIRECTIONAL);
if (unlikely(dma_mapping_error(vm->dma, addr))) {
__free_page(page);
return -ENOMEM;
if (!IS_ALIGNED(addr, I915_GTT_PAGE_SIZE_64K)) {
dma_unmap_page(vm->dma, addr,
I915_GTT_PAGE_SIZE_64K,
PCI_DMA_BIDIRECTIONAL);
__free_pages(page, order);
page = NULL;
}
}
}
if (!page) {
order = 0;
page = alloc_page(gfp | __GFP_ZERO);
if (unlikely(!page))
return -ENOMEM;
addr = dma_map_page(vm->dma, page, 0, PAGE_SIZE,
PCI_DMA_BIDIRECTIONAL);
if (unlikely(dma_mapping_error(vm->dma, addr))) {
__free_page(page);
return -ENOMEM;
}
}
vm->scratch_page.page = page;
vm->scratch_page.daddr = addr;
vm->scratch_page.order = order;
return 0;
}
@ -520,8 +581,9 @@ static void cleanup_scratch_page(struct i915_address_space *vm)
{
struct i915_page_dma *p = &vm->scratch_page;
dma_unmap_page(vm->dma, p->daddr, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
__free_page(p->page);
dma_unmap_page(vm->dma, p->daddr, BIT(p->order) << PAGE_SHIFT,
PCI_DMA_BIDIRECTIONAL);
__free_pages(p->page, p->order);
}
static struct i915_page_table *alloc_pt(struct i915_address_space *vm)
@ -989,6 +1051,105 @@ static void gen8_ppgtt_insert_3lvl(struct i915_address_space *vm,
gen8_ppgtt_insert_pte_entries(ppgtt, &ppgtt->pdp, &iter, &idx,
cache_level);
vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
}
static void gen8_ppgtt_insert_huge_entries(struct i915_vma *vma,
struct i915_page_directory_pointer **pdps,
struct sgt_dma *iter,
enum i915_cache_level cache_level)
{
const gen8_pte_t pte_encode = gen8_pte_encode(0, cache_level);
u64 start = vma->node.start;
dma_addr_t rem = iter->sg->length;
do {
struct gen8_insert_pte idx = gen8_insert_pte(start);
struct i915_page_directory_pointer *pdp = pdps[idx.pml4e];
struct i915_page_directory *pd = pdp->page_directory[idx.pdpe];
unsigned int page_size;
bool maybe_64K = false;
gen8_pte_t encode = pte_encode;
gen8_pte_t *vaddr;
u16 index, max;
if (vma->page_sizes.sg & I915_GTT_PAGE_SIZE_2M &&
IS_ALIGNED(iter->dma, I915_GTT_PAGE_SIZE_2M) &&
rem >= I915_GTT_PAGE_SIZE_2M && !idx.pte) {
index = idx.pde;
max = I915_PDES;
page_size = I915_GTT_PAGE_SIZE_2M;
encode |= GEN8_PDE_PS_2M;
vaddr = kmap_atomic_px(pd);
} else {
struct i915_page_table *pt = pd->page_table[idx.pde];
index = idx.pte;
max = GEN8_PTES;
page_size = I915_GTT_PAGE_SIZE;
if (!index &&
vma->page_sizes.sg & I915_GTT_PAGE_SIZE_64K &&
IS_ALIGNED(iter->dma, I915_GTT_PAGE_SIZE_64K) &&
(IS_ALIGNED(rem, I915_GTT_PAGE_SIZE_64K) ||
rem >= (max - index) << PAGE_SHIFT))
maybe_64K = true;
vaddr = kmap_atomic_px(pt);
}
do {
GEM_BUG_ON(iter->sg->length < page_size);
vaddr[index++] = encode | iter->dma;
start += page_size;
iter->dma += page_size;
rem -= page_size;
if (iter->dma >= iter->max) {
iter->sg = __sg_next(iter->sg);
if (!iter->sg)
break;
rem = iter->sg->length;
iter->dma = sg_dma_address(iter->sg);
iter->max = iter->dma + rem;
if (maybe_64K && index < max &&
!(IS_ALIGNED(iter->dma, I915_GTT_PAGE_SIZE_64K) &&
(IS_ALIGNED(rem, I915_GTT_PAGE_SIZE_64K) ||
rem >= (max - index) << PAGE_SHIFT)))
maybe_64K = false;
if (unlikely(!IS_ALIGNED(iter->dma, page_size)))
break;
}
} while (rem >= page_size && index < max);
kunmap_atomic(vaddr);
/*
* Is it safe to mark the 2M block as 64K? -- Either we have
* filled whole page-table with 64K entries, or filled part of
* it and have reached the end of the sg table and we have
* enough padding.
*/
if (maybe_64K &&
(index == max ||
(i915_vm_has_scratch_64K(vma->vm) &&
!iter->sg && IS_ALIGNED(vma->node.start +
vma->node.size,
I915_GTT_PAGE_SIZE_2M)))) {
vaddr = kmap_atomic_px(pd);
vaddr[idx.pde] |= GEN8_PDE_IPS_64K;
kunmap_atomic(vaddr);
page_size = I915_GTT_PAGE_SIZE_64K;
}
vma->page_sizes.gtt |= page_size;
} while (iter->sg);
}
static void gen8_ppgtt_insert_4lvl(struct i915_address_space *vm,
@ -1003,11 +1164,18 @@ static void gen8_ppgtt_insert_4lvl(struct i915_address_space *vm,
.max = iter.dma + iter.sg->length,
};
struct i915_page_directory_pointer **pdps = ppgtt->pml4.pdps;
struct gen8_insert_pte idx = gen8_insert_pte(vma->node.start);
while (gen8_ppgtt_insert_pte_entries(ppgtt, pdps[idx.pml4e++], &iter,
&idx, cache_level))
GEM_BUG_ON(idx.pml4e >= GEN8_PML4ES_PER_PML4);
if (vma->page_sizes.sg > I915_GTT_PAGE_SIZE) {
gen8_ppgtt_insert_huge_entries(vma, pdps, &iter, cache_level);
} else {
struct gen8_insert_pte idx = gen8_insert_pte(vma->node.start);
while (gen8_ppgtt_insert_pte_entries(ppgtt, pdps[idx.pml4e++],
&iter, &idx, cache_level))
GEM_BUG_ON(idx.pml4e >= GEN8_PML4ES_PER_PML4);
vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
}
}
static void gen8_free_page_tables(struct i915_address_space *vm,
@ -1452,6 +1620,8 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
ppgtt->base.cleanup = gen8_ppgtt_cleanup;
ppgtt->base.unbind_vma = ppgtt_unbind_vma;
ppgtt->base.bind_vma = ppgtt_bind_vma;
ppgtt->base.set_pages = ppgtt_set_pages;
ppgtt->base.clear_pages = clear_pages;
ppgtt->debug_dump = gen8_dump_ppgtt;
return 0;
@ -1726,6 +1896,8 @@ static void gen6_ppgtt_insert_entries(struct i915_address_space *vm,
}
} while (1);
kunmap_atomic(vaddr);
vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
}
static int gen6_alloc_va_range(struct i915_address_space *vm,
@ -1894,6 +2066,8 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
ppgtt->base.insert_entries = gen6_ppgtt_insert_entries;
ppgtt->base.unbind_vma = ppgtt_unbind_vma;
ppgtt->base.bind_vma = ppgtt_bind_vma;
ppgtt->base.set_pages = ppgtt_set_pages;
ppgtt->base.clear_pages = clear_pages;
ppgtt->base.cleanup = gen6_ppgtt_cleanup;
ppgtt->debug_dump = gen6_dump_ppgtt;
@ -1961,6 +2135,23 @@ static void gtt_write_workarounds(struct drm_i915_private *dev_priv)
I915_WRITE(GEN8_L3_LRA_1_GPGPU, GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_SKL);
else if (IS_GEN9_LP(dev_priv))
I915_WRITE(GEN8_L3_LRA_1_GPGPU, GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_BXT);
/*
* To support 64K PTEs we need to first enable the use of the
* Intermediate-Page-Size(IPS) bit of the PDE field via some magical
* mmio, otherwise the page-walker will simply ignore the IPS bit. This
* shouldn't be needed after GEN10.
*
* 64K pages were first introduced from BDW+, although technically they
* only *work* from gen9+. For pre-BDW we instead have the option for
* 32K pages, but we don't currently have any support for it in our
* driver.
*/
if (HAS_PAGE_SIZES(dev_priv, I915_GTT_PAGE_SIZE_64K) &&
INTEL_GEN(dev_priv) <= 10)
I915_WRITE(GEN8_GAMW_ECO_DEV_RW_IA,
I915_READ(GEN8_GAMW_ECO_DEV_RW_IA) |
GAMW_ECO_ENABLE_64K_IPS_FIELD);
}
int i915_ppgtt_init_hw(struct drm_i915_private *dev_priv)
@ -2405,12 +2596,6 @@ static int ggtt_bind_vma(struct i915_vma *vma,
struct drm_i915_gem_object *obj = vma->obj;
u32 pte_flags;
if (unlikely(!vma->pages)) {
int ret = i915_get_ggtt_vma_pages(vma);
if (ret)
return ret;
}
/* Currently applicable only to VLV */
pte_flags = 0;
if (obj->gt_ro)
@ -2420,6 +2605,8 @@ static int ggtt_bind_vma(struct i915_vma *vma,
vma->vm->insert_entries(vma->vm, vma, cache_level, pte_flags);
intel_runtime_pm_put(i915);
vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
/*
* Without aliasing PPGTT there's no difference between
* GLOBAL/LOCAL_BIND, it's all the same ptes. Hence unconditionally
@ -2447,12 +2634,6 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma,
u32 pte_flags;
int ret;
if (unlikely(!vma->pages)) {
ret = i915_get_ggtt_vma_pages(vma);
if (ret)
return ret;
}
/* Currently applicable only to VLV */
pte_flags = 0;
if (vma->obj->gt_ro)
@ -2467,7 +2648,7 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma,
vma->node.start,
vma->size);
if (ret)
goto err_pages;
return ret;
}
appgtt->base.insert_entries(&appgtt->base, vma, cache_level,
@ -2481,17 +2662,6 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma,
}
return 0;
err_pages:
if (!(vma->flags & (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND))) {
if (vma->pages != vma->obj->mm.pages) {
GEM_BUG_ON(!vma->pages);
sg_free_table(vma->pages);
kfree(vma->pages);
}
vma->pages = NULL;
}
return ret;
}
static void aliasing_gtt_unbind_vma(struct i915_vma *vma)
@ -2529,6 +2699,21 @@ void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,
dma_unmap_sg(kdev, pages->sgl, pages->nents, PCI_DMA_BIDIRECTIONAL);
}
static int ggtt_set_pages(struct i915_vma *vma)
{
int ret;
GEM_BUG_ON(vma->pages);
ret = i915_get_ggtt_vma_pages(vma);
if (ret)
return ret;
vma->page_sizes = vma->obj->mm.page_sizes;
return 0;
}
static void i915_gtt_color_adjust(const struct drm_mm_node *node,
unsigned long color,
u64 *start,
@ -3151,6 +3336,8 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
ggtt->base.cleanup = gen6_gmch_remove;
ggtt->base.bind_vma = ggtt_bind_vma;
ggtt->base.unbind_vma = ggtt_unbind_vma;
ggtt->base.set_pages = ggtt_set_pages;
ggtt->base.clear_pages = clear_pages;
ggtt->base.insert_page = gen8_ggtt_insert_page;
ggtt->base.clear_range = nop_clear_range;
if (!USES_FULL_PPGTT(dev_priv) || intel_scanout_needs_vtd_wa(dev_priv))
@ -3209,6 +3396,8 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
ggtt->base.insert_entries = gen6_ggtt_insert_entries;
ggtt->base.bind_vma = ggtt_bind_vma;
ggtt->base.unbind_vma = ggtt_unbind_vma;
ggtt->base.set_pages = ggtt_set_pages;
ggtt->base.clear_pages = clear_pages;
ggtt->base.cleanup = gen6_gmch_remove;
ggtt->invalidate = gen6_ggtt_invalidate;
@ -3254,6 +3443,8 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
ggtt->base.clear_range = i915_ggtt_clear_range;
ggtt->base.bind_vma = ggtt_bind_vma;
ggtt->base.unbind_vma = ggtt_unbind_vma;
ggtt->base.set_pages = ggtt_set_pages;
ggtt->base.clear_pages = clear_pages;
ggtt->base.cleanup = i915_gmch_remove;
ggtt->invalidate = gmch_ggtt_invalidate;

20
drivers/gpu/drm/i915/i915_gem_gtt.h
View File

@ -42,7 +42,13 @@
#include "i915_gem_request.h"
#include "i915_selftest.h"
#define I915_GTT_PAGE_SIZE 4096UL
#define I915_GTT_PAGE_SIZE_4K BIT(12)
#define I915_GTT_PAGE_SIZE_64K BIT(16)
#define I915_GTT_PAGE_SIZE_2M BIT(21)
#define I915_GTT_PAGE_SIZE I915_GTT_PAGE_SIZE_4K
#define I915_GTT_MAX_PAGE_SIZE I915_GTT_PAGE_SIZE_2M
#define I915_GTT_MIN_ALIGNMENT I915_GTT_PAGE_SIZE
#define I915_FENCE_REG_NONE -1
@ -148,6 +154,9 @@ typedef u64 gen8_ppgtt_pml4e_t;
#define GEN8_PPAT_GET_AGE(x) ((x) & (3 << 4))
#define CHV_PPAT_GET_SNOOP(x) ((x) & (1 << 6))
#define GEN8_PDE_IPS_64K BIT(11)
#define GEN8_PDE_PS_2M BIT(7)
struct sg_table;
struct intel_rotation_info {
@ -207,6 +216,7 @@ struct i915_vma;
struct i915_page_dma {
struct page *page;
int order;
union {
dma_addr_t daddr;
@ -329,6 +339,8 @@ struct i915_address_space {
int (*bind_vma)(struct i915_vma *vma,
enum i915_cache_level cache_level,
u32 flags);
int (*set_pages)(struct i915_vma *vma);
void (*clear_pages)(struct i915_vma *vma);
I915_SELFTEST_DECLARE(struct fault_attr fault_attr);
};
@ -341,6 +353,12 @@ i915_vm_is_48bit(const struct i915_address_space *vm)
return (vm->total - 1) >> 32;
}
static inline bool
i915_vm_has_scratch_64K(struct i915_address_space *vm)
{
return vm->scratch_page.order == get_order(I915_GTT_PAGE_SIZE_64K);
}
/* The Graphics Translation Table is the way in which GEN hardware translates a
* Graphics Virtual Address into a Physical Address. In addition to the normal
* collateral associated with any va->pa translations GEN hardware also has a

18
drivers/gpu/drm/i915/i915_gem_internal.c
View File

@ -44,12 +44,12 @@ static void internal_free_pages(struct sg_table *st)
kfree(st);
}
static struct sg_table *
i915_gem_object_get_pages_internal(struct drm_i915_gem_object *obj)
static int i915_gem_object_get_pages_internal(struct drm_i915_gem_object *obj)
{
struct drm_i915_private *i915 = to_i915(obj->base.dev);
struct sg_table *st;
struct scatterlist *sg;
unsigned int sg_page_sizes;
unsigned int npages;
int max_order;
gfp_t gfp;
@ -78,16 +78,17 @@ i915_gem_object_get_pages_internal(struct drm_i915_gem_object *obj)
create_st:
st = kmalloc(sizeof(*st), GFP_KERNEL);
if (!st)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
npages = obj->base.size / PAGE_SIZE;
if (sg_alloc_table(st, npages, GFP_KERNEL)) {
kfree(st);
return ERR_PTR(-ENOMEM);
return -ENOMEM;
}
sg = st->sgl;
st->nents = 0;
sg_page_sizes = 0;
do {
int order = min(fls(npages) - 1, max_order);
@ -105,6 +106,7 @@ create_st:
} while (1);
sg_set_page(sg, page, PAGE_SIZE << order, 0);
sg_page_sizes |= PAGE_SIZE << order;
st->nents++;
npages -= 1 << order;
@ -132,13 +134,17 @@ create_st:
* object are only valid whilst active and pinned.
*/
obj->mm.madv = I915_MADV_DONTNEED;
return st;
__i915_gem_object_set_pages(obj, st, sg_page_sizes);
return 0;
err:
sg_set_page(sg, NULL, 0, 0);
sg_mark_end(sg);
internal_free_pages(st);
return ERR_PTR(-ENOMEM);
return -ENOMEM;
}
static void i915_gem_object_put_pages_internal(struct drm_i915_gem_object *obj,

32
drivers/gpu/drm/i915/i915_gem_object.h
View File

@ -69,7 +69,7 @@ struct drm_i915_gem_object_ops {
* being released or under memory pressure (where we attempt to
* reap pages for the shrinker).
*/
struct sg_table *(*get_pages)(struct drm_i915_gem_object *);
int (*get_pages)(struct drm_i915_gem_object *);
void (*put_pages)(struct drm_i915_gem_object *, struct sg_table *);
int (*pwrite)(struct drm_i915_gem_object *,
@ -123,6 +123,7 @@ struct drm_i915_gem_object {
/**
* Whether the object is currently in the GGTT mmap.
*/
unsigned int userfault_count;
struct list_head userfault_link;
struct list_head batch_pool_link;
@ -169,6 +170,35 @@ struct drm_i915_gem_object {
struct sg_table *pages;
void *mapping;
/* TODO: whack some of this into the error state */
struct i915_page_sizes {
/**
* The sg mask of the pages sg_table. i.e the mask of
* of the lengths for each sg entry.
*/
unsigned int phys;
/**
* The gtt page sizes we are allowed to use given the
* sg mask and the supported page sizes. This will
* express the smallest unit we can use for the whole
* object, as well as the larger sizes we may be able
* to use opportunistically.
*/
unsigned int sg;
/**
* The actual gtt page size usage. Since we can have
* multiple vma associated with this object we need to
* prevent any trampling of state, hence a copy of this
* struct also lives in each vma, therefore the gtt
* value here should only be read/write through the vma.
*/
unsigned int gtt;
} page_sizes;
I915_SELFTEST_DECLARE(unsigned int page_mask);
struct i915_gem_object_page_iter {
struct scatterlist *sg_pos;
unsigned int sg_idx; /* in pages, but 32bit eek! */

20
drivers/gpu/drm/i915/i915_gem_request.c
View File

@ -186,7 +186,7 @@ i915_priotree_init(struct i915_priotree *pt)
INIT_LIST_HEAD(&pt->signalers_list);
INIT_LIST_HEAD(&pt->waiters_list);
INIT_LIST_HEAD(&pt->link);
pt->priority = INT_MIN;
pt->priority = I915_PRIORITY_INVALID;
}
static int reset_all_global_seqno(struct drm_i915_private *i915, u32 seqno)
@ -416,7 +416,7 @@ static void i915_gem_request_retire(struct drm_i915_gem_request *request)
spin_lock_irq(&request->lock);
if (request->waitboost)
atomic_dec(&request->i915->rps.num_waiters);
atomic_dec(&request->i915->gt_pm.rps.num_waiters);
dma_fence_signal_locked(&request->fence);
spin_unlock_irq(&request->lock);
@ -556,7 +556,16 @@ submit_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state)
switch (state) {
case FENCE_COMPLETE:
trace_i915_gem_request_submit(request);
/*
* We need to serialize use of the submit_request() callback with its
* hotplugging performed during an emergency i915_gem_set_wedged().
* We use the RCU mechanism to mark the critical section in order to
* force i915_gem_set_wedged() to wait until the submit_request() is
* completed before proceeding.
*/
rcu_read_lock();
request->engine->submit_request(request);
rcu_read_unlock();
break;
case FENCE_FREE:
@ -587,6 +596,13 @@ i915_gem_request_alloc(struct intel_engine_cs *engine,
lockdep_assert_held(&dev_priv->drm.struct_mutex);
/*
* Preempt contexts are reserved for exclusive use to inject a
* preemption context switch. They are never to be used for any trivial
* request!
*/
GEM_BUG_ON(ctx == dev_priv->preempt_context);
/* ABI: Before userspace accesses the GPU (e.g. execbuffer), report
* EIO if the GPU is already wedged.
*/

13
drivers/gpu/drm/i915/i915_gem_request.h
View File

@ -30,6 +30,8 @@
#include "i915_gem.h"
#include "i915_sw_fence.h"
#include <uapi/drm/i915_drm.h>
struct drm_file;
struct drm_i915_gem_object;
struct drm_i915_gem_request;
@ -69,9 +71,14 @@ struct i915_priotree {
struct list_head waiters_list; /* those after us, they depend upon us */
struct list_head link;
int priority;
#define I915_PRIORITY_MAX 1024
#define I915_PRIORITY_NORMAL 0
#define I915_PRIORITY_MIN (-I915_PRIORITY_MAX)
};
enum {
I915_PRIORITY_MIN = I915_CONTEXT_MIN_USER_PRIORITY - 1,
I915_PRIORITY_NORMAL = I915_CONTEXT_DEFAULT_PRIORITY,
I915_PRIORITY_MAX = I915_CONTEXT_MAX_USER_PRIORITY + 1,
I915_PRIORITY_INVALID = INT_MIN
};
struct i915_gem_capture_list {

16
drivers/gpu/drm/i915/i915_gem_stolen.c
View File

@ -539,12 +539,18 @@ i915_pages_create_for_stolen(struct drm_device *dev,
return st;
}
static struct sg_table *
i915_gem_object_get_pages_stolen(struct drm_i915_gem_object *obj)
static int i915_gem_object_get_pages_stolen(struct drm_i915_gem_object *obj)
{
return i915_pages_create_for_stolen(obj->base.dev,
obj->stolen->start,
obj->stolen->size);
struct sg_table *pages =
i915_pages_create_for_stolen(obj->base.dev,
obj->stolen->start,
obj->stolen->size);
if (IS_ERR(pages))
return PTR_ERR(pages);
__i915_gem_object_set_pages(obj, pages, obj->stolen->size);
return 0;
}
static void i915_gem_object_put_pages_stolen(struct drm_i915_gem_object *obj,

53
drivers/gpu/drm/i915/i915_gem_userptr.c
View File

@ -164,7 +164,6 @@ static struct i915_mmu_notifier *
i915_mmu_notifier_create(struct mm_struct *mm)
{
struct i915_mmu_notifier *mn;
int ret;
mn = kmalloc(sizeof(*mn), GFP_KERNEL);
if (mn == NULL)
@ -179,14 +178,6 @@ i915_mmu_notifier_create(struct mm_struct *mm)
return ERR_PTR(-ENOMEM);
}
/* Protected by mmap_sem (write-lock) */
ret = __mmu_notifier_register(&mn->mn, mm);
if (ret) {
destroy_workqueue(mn->wq);
kfree(mn);
return ERR_PTR(ret);
}
return mn;
}
@ -210,23 +201,40 @@ i915_gem_userptr_release__mmu_notifier(struct drm_i915_gem_object *obj)
static struct i915_mmu_notifier *
i915_mmu_notifier_find(struct i915_mm_struct *mm)
{
struct i915_mmu_notifier *mn = mm->mn;
struct i915_mmu_notifier *mn;
int err = 0;
mn = mm->mn;
if (mn)
return mn;
mn = i915_mmu_notifier_create(mm->mm);
if (IS_ERR(mn))
err = PTR_ERR(mn);
down_write(&mm->mm->mmap_sem);
mutex_lock(&mm->i915->mm_lock);
if ((mn = mm->mn) == NULL) {
mn = i915_mmu_notifier_create(mm->mm);
if (!IS_ERR(mn))
mm->mn = mn;
if (mm->mn == NULL && !err) {
/* Protected by mmap_sem (write-lock) */
err = __mmu_notifier_register(&mn->mn, mm->mm);
if (!err) {
/* Protected by mm_lock */
mm->mn = fetch_and_zero(&mn);
}
} else {
/* someone else raced and successfully installed the mmu
* notifier, we can cancel our own errors */
err = 0;
}
mutex_unlock(&mm->i915->mm_lock);
up_write(&mm->mm->mmap_sem);
return mn;
if (mn) {
destroy_workqueue(mn->wq);
kfree(mn);
}
return err ? ERR_PTR(err) : mm->mn;
}
static int
@ -405,6 +413,7 @@ __i915_gem_userptr_alloc_pages(struct drm_i915_gem_object *obj,
{
unsigned int max_segment = i915_sg_segment_size();
struct sg_table *st;
unsigned int sg_page_sizes;
int ret;
st = kmalloc(sizeof(*st), GFP_KERNEL);
@ -434,6 +443,10 @@ alloc_table:
return ERR_PTR(ret);
}
sg_page_sizes = i915_sg_page_sizes(st->sgl);
__i915_gem_object_set_pages(obj, st, sg_page_sizes);
return st;
}
@ -521,7 +534,6 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work)
pages = __i915_gem_userptr_alloc_pages(obj, pvec,
npages);
if (!IS_ERR(pages)) {
__i915_gem_object_set_pages(obj, pages);
pinned = 0;
pages = NULL;
}
@ -582,8 +594,7 @@ __i915_gem_userptr_get_pages_schedule(struct drm_i915_gem_object *obj)
return ERR_PTR(-EAGAIN);
}
static struct sg_table *
i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
static int i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
{
const int num_pages = obj->base.size >> PAGE_SHIFT;
struct mm_struct *mm = obj->userptr.mm->mm;
@ -612,9 +623,9 @@ i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
if (obj->userptr.work) {
/* active flag should still be held for the pending work */
if (IS_ERR(obj->userptr.work))
return ERR_CAST(obj->userptr.work);
return PTR_ERR(obj->userptr.work);
else
return ERR_PTR(-EAGAIN);
return -EAGAIN;
}
pvec = NULL;
@ -650,7 +661,7 @@ i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
release_pages(pvec, pinned, 0);
kvfree(pvec);
return pages;
return PTR_ERR_OR_ZERO(pages);
}
static void

74
drivers/gpu/drm/i915/i915_gemfs.c Normal file
View File

@ -0,0 +1,74 @@
/*
* Copyright © 2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#include <linux/fs.h>
#include <linux/mount.h>
#include <linux/pagemap.h>
#include "i915_drv.h"
#include "i915_gemfs.h"
int i915_gemfs_init(struct drm_i915_private *i915)
{
struct file_system_type *type;
struct vfsmount *gemfs;
type = get_fs_type("tmpfs");
if (!type)
return -ENODEV;
gemfs = kern_mount(type);
if (IS_ERR(gemfs))
return PTR_ERR(gemfs);
/*
* Enable huge-pages for objects that are at least HPAGE_PMD_SIZE, most
* likely 2M. Note that within_size may overallocate huge-pages, if say
* we allocate an object of size 2M + 4K, we may get 2M + 2M, but under
* memory pressure shmem should split any huge-pages which can be
* shrunk.
*/
if (has_transparent_hugepage()) {
struct super_block *sb = gemfs->mnt_sb;
char options[] = "huge=within_size";
int flags = 0;
int err;
err = sb->s_op->remount_fs(sb, &flags, options);
if (err) {
kern_unmount(gemfs);
return err;
}
}
i915->mm.gemfs = gemfs;
return 0;
}
void i915_gemfs_fini(struct drm_i915_private *i915)
{
kern_unmount(i915->mm.gemfs);
}

34
drivers/gpu/drm/i915/i915_gemfs.h Normal file
View File

@ -0,0 +1,34 @@
/*
* Copyright © 2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef __I915_GEMFS_H__
#define __I915_GEMFS_H__
struct drm_i915_private;
int i915_gemfs_init(struct drm_i915_private *i915);
void i915_gemfs_fini(struct drm_i915_private *i915);
#endif

14
drivers/gpu/drm/i915/i915_gpu_error.c
View File

@ -377,9 +377,9 @@ static void error_print_request(struct drm_i915_error_state_buf *m,
if (!erq->seqno)
return;
err_printf(m, "%s pid %d, ban score %d, seqno %8x:%08x, emitted %dms ago, head %08x, tail %08x\n",
err_printf(m, "%s pid %d, ban score %d, seqno %8x:%08x, prio %d, emitted %dms ago, head %08x, tail %08x\n",
prefix, erq->pid, erq->ban_score,
erq->context, erq->seqno,
erq->context, erq->seqno, erq->priority,
jiffies_to_msecs(jiffies - erq->jiffies),
erq->head, erq->tail);
}
@ -388,9 +388,9 @@ static void error_print_context(struct drm_i915_error_state_buf *m,
const char *header,
const struct drm_i915_error_context *ctx)
{
err_printf(m, "%s%s[%d] user_handle %d hw_id %d, ban score %d guilty %d active %d\n",
err_printf(m, "%s%s[%d] user_handle %d hw_id %d, prio %d, ban score %d guilty %d active %d\n",
header, ctx->comm, ctx->pid, ctx->handle, ctx->hw_id,
ctx->ban_score, ctx->guilty, ctx->active);
ctx->priority, ctx->ban_score, ctx->guilty, ctx->active);
}
static void error_print_engine(struct drm_i915_error_state_buf *m,
@ -1271,6 +1271,7 @@ static void record_request(struct drm_i915_gem_request *request,
struct drm_i915_error_request *erq)
{
erq->context = request->ctx->hw_id;
erq->priority = request->priotree.priority;
erq->ban_score = atomic_read(&request->ctx->ban_score);
erq->seqno = request->global_seqno;
erq->jiffies = request->emitted_jiffies;
@ -1364,6 +1365,7 @@ static void record_context(struct drm_i915_error_context *e,
e->handle = ctx->user_handle;
e->hw_id = ctx->hw_id;
e->priority = ctx->priority;
e->ban_score = atomic_read(&ctx->ban_score);
e->guilty = atomic_read(&ctx->guilty_count);
e->active = atomic_read(&ctx->active_count);
@ -1672,8 +1674,8 @@ static void i915_capture_gen_state(struct drm_i915_private *dev_priv,
struct i915_gpu_state *error)
{
error->awake = dev_priv->gt.awake;
error->wakelock = atomic_read(&dev_priv->pm.wakeref_count);
error->suspended = dev_priv->pm.suspended;
error->wakelock = atomic_read(&dev_priv->runtime_pm.wakeref_count);
error->suspended = dev_priv->runtime_pm.suspended;
error->iommu = -1;
#ifdef CONFIG_INTEL_IOMMU

123
drivers/gpu/drm/i915/i915_guc_submission.c
View File

@ -21,12 +21,13 @@
* IN THE SOFTWARE.
*
*/
#include <linux/circ_buf.h>
#include "i915_drv.h"
#include "intel_uc.h"
#include <linux/circ_buf.h>
#include <trace/events/dma_fence.h>
#include "i915_guc_submission.h"
#include "i915_drv.h"
/**
* DOC: GuC-based command submission
*
@ -337,7 +338,7 @@ static void guc_stage_desc_init(struct intel_guc *guc,
for_each_engine_masked(engine, dev_priv, client->engines, tmp) {
struct intel_context *ce = &ctx->engine[engine->id];
uint32_t guc_engine_id = engine->guc_id;
u32 guc_engine_id = engine->guc_id;
struct guc_execlist_context *lrc = &desc->lrc[guc_engine_id];
/* TODO: We have a design issue to be solved here. Only when we
@ -387,13 +388,13 @@ static void guc_stage_desc_init(struct intel_guc *guc,
gfx_addr = guc_ggtt_offset(client->vma);
desc->db_trigger_phy = sg_dma_address(client->vma->pages->sgl) +
client->doorbell_offset;
desc->db_trigger_cpu = (uintptr_t)__get_doorbell(client);
desc->db_trigger_cpu = ptr_to_u64(__get_doorbell(client));
desc->db_trigger_uk = gfx_addr + client->doorbell_offset;
desc->process_desc = gfx_addr + client->proc_desc_offset;
desc->wq_addr = gfx_addr + GUC_DB_SIZE;
desc->wq_size = GUC_WQ_SIZE;
desc->desc_private = (uintptr_t)client;
desc->desc_private = ptr_to_u64(client);
}
static void guc_stage_desc_fini(struct intel_guc *guc,
@ -499,7 +500,7 @@ static void i915_guc_submit(struct intel_engine_cs *engine)
const unsigned int engine_id = engine->id;
unsigned int n;
for (n = 0; n < ARRAY_SIZE(execlists->port); n++) {
for (n = 0; n < execlists_num_ports(execlists); n++) {
struct drm_i915_gem_request *rq;
unsigned int count;
@ -643,48 +644,6 @@ static void i915_guc_irq_handler(unsigned long data)
* path of i915_guc_submit() above.
*/
/**
* intel_guc_allocate_vma() - Allocate a GGTT VMA for GuC usage
* @guc: the guc
* @size: size of area to allocate (both virtual space and memory)
*
* This is a wrapper to create an object for use with the GuC. In order to
* use it inside the GuC, an object needs to be pinned lifetime, so we allocate
* both some backing storage and a range inside the Global GTT. We must pin
* it in the GGTT somewhere other than than [0, GUC_WOPCM_TOP) because that
* range is reserved inside GuC.
*
* Return: A i915_vma if successful, otherwise an ERR_PTR.
*/
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct drm_i915_gem_object *obj;
struct i915_vma *vma;
int ret;
obj = i915_gem_object_create(dev_priv, size);
if (IS_ERR(obj))
return ERR_CAST(obj);
vma = i915_vma_instance(obj, &dev_priv->ggtt.base, NULL);
if (IS_ERR(vma))
goto err;
ret = i915_vma_pin(vma, 0, PAGE_SIZE,
PIN_GLOBAL | PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
if (ret) {
vma = ERR_PTR(ret);
goto err;
}
return vma;
err:
i915_gem_object_put(obj);
return vma;
}
/* Check that a doorbell register is in the expected state */
static bool doorbell_ok(struct intel_guc *guc, u16 db_id)
{
@ -796,8 +755,8 @@ static int guc_init_doorbell_hw(struct intel_guc *guc)
*/
static struct i915_guc_client *
guc_client_alloc(struct drm_i915_private *dev_priv,
uint32_t engines,
uint32_t priority,
u32 engines,
u32 priority,
struct i915_gem_context *ctx)
{
struct i915_guc_client *client;
@ -1069,6 +1028,7 @@ void i915_guc_submission_fini(struct drm_i915_private *dev_priv)
static void guc_interrupts_capture(struct drm_i915_private *dev_priv)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
struct intel_engine_cs *engine;
enum intel_engine_id id;
int irqs;
@ -1105,12 +1065,13 @@ static void guc_interrupts_capture(struct drm_i915_private *dev_priv)
* Here we CLEAR REDIRECT_TO_GUC bit in pm_intrmsk_mbz, which will
* result in the register bit being left SET!
*/
dev_priv->rps.pm_intrmsk_mbz |= ARAT_EXPIRED_INTRMSK;
dev_priv->rps.pm_intrmsk_mbz &= ~GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
rps->pm_intrmsk_mbz |= ARAT_EXPIRED_INTRMSK;
rps->pm_intrmsk_mbz &= ~GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
}
static void guc_interrupts_release(struct drm_i915_private *dev_priv)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
struct intel_engine_cs *engine;
enum intel_engine_id id;
int irqs;
@ -1129,8 +1090,8 @@ static void guc_interrupts_release(struct drm_i915_private *dev_priv)
I915_WRITE(GUC_VCS2_VCS1_IER, 0);
I915_WRITE(GUC_WD_VECS_IER, 0);
dev_priv->rps.pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
dev_priv->rps.pm_intrmsk_mbz &= ~ARAT_EXPIRED_INTRMSK;
rps->pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
rps->pm_intrmsk_mbz &= ~ARAT_EXPIRED_INTRMSK;
}
int i915_guc_submission_enable(struct drm_i915_private *dev_priv)
@ -1212,55 +1173,3 @@ void i915_guc_submission_disable(struct drm_i915_private *dev_priv)
guc_client_free(guc->execbuf_client);
guc->execbuf_client = NULL;
}
/**
* intel_guc_suspend() - notify GuC entering suspend state
* @dev_priv: i915 device private
*/
int intel_guc_suspend(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
struct i915_gem_context *ctx;
u32 data[3];
if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return 0;
gen9_disable_guc_interrupts(dev_priv);
ctx = dev_priv->kernel_context;
data[0] = INTEL_GUC_ACTION_ENTER_S_STATE;
/* any value greater than GUC_POWER_D0 */
data[1] = GUC_POWER_D1;
/* first page is shared data with GuC */
data[2] = guc_ggtt_offset(ctx->engine[RCS].state) + LRC_GUCSHR_PN * PAGE_SIZE;
return intel_guc_send(guc, data, ARRAY_SIZE(data));
}
/**
* intel_guc_resume() - notify GuC resuming from suspend state
* @dev_priv: i915 device private
*/
int intel_guc_resume(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
struct i915_gem_context *ctx;
u32 data[3];
if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return 0;
if (i915_modparams.guc_log_level >= 0)
gen9_enable_guc_interrupts(dev_priv);
ctx = dev_priv->kernel_context;
data[0] = INTEL_GUC_ACTION_EXIT_S_STATE;
data[1] = GUC_POWER_D0;
/* first page is shared data with GuC */
data[2] = guc_ggtt_offset(ctx->engine[RCS].state) + LRC_GUCSHR_PN * PAGE_SIZE;
return intel_guc_send(guc, data, ARRAY_SIZE(data));
}

80
drivers/gpu/drm/i915/i915_guc_submission.h Normal file
View File

@ -0,0 +1,80 @@
/*
* Copyright © 2014-2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef _I915_GUC_SUBMISSION_H_
#define _I915_GUC_SUBMISSION_H_
#include <linux/spinlock.h>
#include "i915_gem.h"
struct drm_i915_private;
/*
* This structure primarily describes the GEM object shared with the GuC.
* The specs sometimes refer to this object as a "GuC context", but we use
* the term "client" to avoid confusion with hardware contexts. This
* GEM object is held for the entire lifetime of our interaction with
* the GuC, being allocated before the GuC is loaded with its firmware.
* Because there's no way to update the address used by the GuC after
* initialisation, the shared object must stay pinned into the GGTT as
* long as the GuC is in use. We also keep the first page (only) mapped
* into kernel address space, as it includes shared data that must be
* updated on every request submission.
*
* The single GEM object described here is actually made up of several
* separate areas, as far as the GuC is concerned. The first page (kept
* kmap'd) includes the "process descriptor" which holds sequence data for
* the doorbell, and one cacheline which actually *is* the doorbell; a
* write to this will "ring the doorbell" (i.e. send an interrupt to the
* GuC). The subsequent pages of the client object constitute the work
* queue (a circular array of work items), again described in the process
* descriptor. Work queue pages are mapped momentarily as required.
*/
struct i915_guc_client {
struct i915_vma *vma;
void *vaddr;
struct i915_gem_context *owner;
struct intel_guc *guc;
/* bitmap of (host) engine ids */
u32 engines;
u32 priority;
u32 stage_id;
u32 proc_desc_offset;
u16 doorbell_id;
unsigned long doorbell_offset;
spinlock_t wq_lock;
/* Per-engine counts of GuC submissions */
u64 submissions[I915_NUM_ENGINES];
};
int i915_guc_submission_init(struct drm_i915_private *dev_priv);
int i915_guc_submission_enable(struct drm_i915_private *dev_priv);
void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
#endif

138
drivers/gpu/drm/i915/i915_irq.c
View File

@ -404,19 +404,21 @@ void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv)
{
spin_lock_irq(&dev_priv->irq_lock);
gen6_reset_pm_iir(dev_priv, dev_priv->pm_rps_events);
dev_priv->rps.pm_iir = 0;
dev_priv->gt_pm.rps.pm_iir = 0;
spin_unlock_irq(&dev_priv->irq_lock);
}
void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv)
{
if (READ_ONCE(dev_priv->rps.interrupts_enabled))
struct intel_rps *rps = &dev_priv->gt_pm.rps;
if (READ_ONCE(rps->interrupts_enabled))
return;
spin_lock_irq(&dev_priv->irq_lock);
WARN_ON_ONCE(dev_priv->rps.pm_iir);
WARN_ON_ONCE(rps->pm_iir);
WARN_ON_ONCE(I915_READ(gen6_pm_iir(dev_priv)) & dev_priv->pm_rps_events);
dev_priv->rps.interrupts_enabled = true;
rps->interrupts_enabled = true;
gen6_enable_pm_irq(dev_priv, dev_priv->pm_rps_events);
spin_unlock_irq(&dev_priv->irq_lock);
@ -424,11 +426,13 @@ void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv)
void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv)
{
if (!READ_ONCE(dev_priv->rps.interrupts_enabled))
struct intel_rps *rps = &dev_priv->gt_pm.rps;
if (!READ_ONCE(rps->interrupts_enabled))
return;
spin_lock_irq(&dev_priv->irq_lock);
dev_priv->rps.interrupts_enabled = false;
rps->interrupts_enabled = false;
I915_WRITE(GEN6_PMINTRMSK, gen6_sanitize_rps_pm_mask(dev_priv, ~0u));
@ -442,7 +446,7 @@ void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv)
* we will reset the GPU to minimum frequencies, so the current
* state of the worker can be discarded.
*/
cancel_work_sync(&dev_priv->rps.work);
cancel_work_sync(&rps->work);
gen6_reset_rps_interrupts(dev_priv);
}
@ -1119,12 +1123,13 @@ static void vlv_c0_read(struct drm_i915_private *dev_priv,
void gen6_rps_reset_ei(struct drm_i915_private *dev_priv)
{
memset(&dev_priv->rps.ei, 0, sizeof(dev_priv->rps.ei));
memset(&dev_priv->gt_pm.rps.ei, 0, sizeof(dev_priv->gt_pm.rps.ei));
}
static u32 vlv_wa_c0_ei(struct drm_i915_private *dev_priv, u32 pm_iir)
{
const struct intel_rps_ei *prev = &dev_priv->rps.ei;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
const struct intel_rps_ei *prev = &rps->ei;
struct intel_rps_ei now;
u32 events = 0;
@ -1151,28 +1156,29 @@ static u32 vlv_wa_c0_ei(struct drm_i915_private *dev_priv, u32 pm_iir)
c0 = max(render, media);
c0 *= 1000 * 100 << 8; /* to usecs and scale to threshold% */
if (c0 > time * dev_priv->rps.up_threshold)
if (c0 > time * rps->up_threshold)
events = GEN6_PM_RP_UP_THRESHOLD;
else if (c0 < time * dev_priv->rps.down_threshold)
else if (c0 < time * rps->down_threshold)
events = GEN6_PM_RP_DOWN_THRESHOLD;
}
dev_priv->rps.ei = now;
rps->ei = now;
return events;
}
static void gen6_pm_rps_work(struct work_struct *work)
{
struct drm_i915_private *dev_priv =
container_of(work, struct drm_i915_private, rps.work);
container_of(work, struct drm_i915_private, gt_pm.rps.work);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
bool client_boost = false;
int new_delay, adj, min, max;
u32 pm_iir = 0;
spin_lock_irq(&dev_priv->irq_lock);
if (dev_priv->rps.interrupts_enabled) {
pm_iir = fetch_and_zero(&dev_priv->rps.pm_iir);
client_boost = atomic_read(&dev_priv->rps.num_waiters);
if (rps->interrupts_enabled) {
pm_iir = fetch_and_zero(&rps->pm_iir);
client_boost = atomic_read(&rps->num_waiters);
}
spin_unlock_irq(&dev_priv->irq_lock);
@ -1181,18 +1187,18 @@ static void gen6_pm_rps_work(struct work_struct *work)
if ((pm_iir & dev_priv->pm_rps_events) == 0 && !client_boost)
goto out;
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
pm_iir |= vlv_wa_c0_ei(dev_priv, pm_iir);
adj = dev_priv->rps.last_adj;
new_delay = dev_priv->rps.cur_freq;
min = dev_priv->rps.min_freq_softlimit;
max = dev_priv->rps.max_freq_softlimit;
adj = rps->last_adj;
new_delay = rps->cur_freq;
min = rps->min_freq_softlimit;
max = rps->max_freq_softlimit;
if (client_boost)
max = dev_priv->rps.max_freq;
if (client_boost && new_delay < dev_priv->rps.boost_freq) {
new_delay = dev_priv->rps.boost_freq;
max = rps->max_freq;
if (client_boost && new_delay < rps->boost_freq) {
new_delay = rps->boost_freq;
adj = 0;
} else if (pm_iir & GEN6_PM_RP_UP_THRESHOLD) {
if (adj > 0)
@ -1200,15 +1206,15 @@ static void gen6_pm_rps_work(struct work_struct *work)
else /* CHV needs even encode values */
adj = IS_CHERRYVIEW(dev_priv) ? 2 : 1;
if (new_delay >= dev_priv->rps.max_freq_softlimit)
if (new_delay >= rps->max_freq_softlimit)
adj = 0;
} else if (client_boost) {
adj = 0;
} else if (pm_iir & GEN6_PM_RP_DOWN_TIMEOUT) {
if (dev_priv->rps.cur_freq > dev_priv->rps.efficient_freq)
new_delay = dev_priv->rps.efficient_freq;
else if (dev_priv->rps.cur_freq > dev_priv->rps.min_freq_softlimit)
new_delay = dev_priv->rps.min_freq_softlimit;
if (rps->cur_freq > rps->efficient_freq)
new_delay = rps->efficient_freq;
else if (rps->cur_freq > rps->min_freq_softlimit)
new_delay = rps->min_freq_softlimit;
adj = 0;
} else if (pm_iir & GEN6_PM_RP_DOWN_THRESHOLD) {
if (adj < 0)
@ -1216,13 +1222,13 @@ static void gen6_pm_rps_work(struct work_struct *work)
else /* CHV needs even encode values */
adj = IS_CHERRYVIEW(dev_priv) ? -2 : -1;
if (new_delay <= dev_priv->rps.min_freq_softlimit)
if (new_delay <= rps->min_freq_softlimit)
adj = 0;
} else { /* unknown event */
adj = 0;
}
dev_priv->rps.last_adj = adj;
rps->last_adj = adj;
/* sysfs frequency interfaces may have snuck in while servicing the
* interrupt
@ -1232,15 +1238,15 @@ static void gen6_pm_rps_work(struct work_struct *work)
if (intel_set_rps(dev_priv, new_delay)) {
DRM_DEBUG_DRIVER("Failed to set new GPU frequency\n");
dev_priv->rps.last_adj = 0;
rps->last_adj = 0;
}
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
out:
/* Make sure not to corrupt PMIMR state used by ringbuffer on GEN6 */
spin_lock_irq(&dev_priv->irq_lock);
if (dev_priv->rps.interrupts_enabled)
if (rps->interrupts_enabled)
gen6_unmask_pm_irq(dev_priv, dev_priv->pm_rps_events);
spin_unlock_irq(&dev_priv->irq_lock);
}
@ -1382,10 +1388,8 @@ gen8_cs_irq_handler(struct intel_engine_cs *engine, u32 iir, int test_shift)
bool tasklet = false;
if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << test_shift)) {
if (port_count(&execlists->port[0])) {
__set_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
tasklet = true;
}
__set_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
tasklet = true;
}
if (iir & (GT_RENDER_USER_INTERRUPT << test_shift)) {
@ -1723,12 +1727,14 @@ static void i9xx_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
* the work queue. */
static void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
if (pm_iir & dev_priv->pm_rps_events) {
spin_lock(&dev_priv->irq_lock);
gen6_mask_pm_irq(dev_priv, pm_iir & dev_priv->pm_rps_events);
if (dev_priv->rps.interrupts_enabled) {
dev_priv->rps.pm_iir |= pm_iir & dev_priv->pm_rps_events;
schedule_work(&dev_priv->rps.work);
if (rps->interrupts_enabled) {
rps->pm_iir |= pm_iir & dev_priv->pm_rps_events;
schedule_work(&rps->work);
}
spin_unlock(&dev_priv->irq_lock);
}
@ -2254,18 +2260,14 @@ static void ivb_err_int_handler(struct drm_i915_private *dev_priv)
static void cpt_serr_int_handler(struct drm_i915_private *dev_priv)
{
u32 serr_int = I915_READ(SERR_INT);
enum pipe pipe;
if (serr_int & SERR_INT_POISON)
DRM_ERROR("PCH poison interrupt\n");
if (serr_int & SERR_INT_TRANS_A_FIFO_UNDERRUN)
intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_A);
if (serr_int & SERR_INT_TRANS_B_FIFO_UNDERRUN)
intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_B);
if (serr_int & SERR_INT_TRANS_C_FIFO_UNDERRUN)
intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_C);
for_each_pipe(dev_priv, pipe)
if (serr_int & SERR_INT_TRANS_FIFO_UNDERRUN(pipe))
intel_pch_fifo_underrun_irq_handler(dev_priv, pipe);
I915_WRITE(SERR_INT, serr_int);
}
@ -3163,10 +3165,17 @@ void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
enum pipe pipe;
spin_lock_irq(&dev_priv->irq_lock);
if (!intel_irqs_enabled(dev_priv)) {
spin_unlock_irq(&dev_priv->irq_lock);
return;
}
for_each_pipe_masked(dev_priv, pipe, pipe_mask)
GEN8_IRQ_INIT_NDX(DE_PIPE, pipe,
dev_priv->de_irq_mask[pipe],
~dev_priv->de_irq_mask[pipe] | extra_ier);
spin_unlock_irq(&dev_priv->irq_lock);
}
@ -3176,8 +3185,15 @@ void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
enum pipe pipe;
spin_lock_irq(&dev_priv->irq_lock);
if (!intel_irqs_enabled(dev_priv)) {
spin_unlock_irq(&dev_priv->irq_lock);
return;
}
for_each_pipe_masked(dev_priv, pipe, pipe_mask)
GEN8_IRQ_RESET_NDX(DE_PIPE, pipe);
spin_unlock_irq(&dev_priv->irq_lock);
/* make sure we're done processing display irqs */
@ -3598,16 +3614,15 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
else if (IS_BROADWELL(dev_priv))
de_port_enables |= GEN8_PORT_DP_A_HOTPLUG;
dev_priv->de_irq_mask[PIPE_A] = ~de_pipe_masked;
dev_priv->de_irq_mask[PIPE_B] = ~de_pipe_masked;
dev_priv->de_irq_mask[PIPE_C] = ~de_pipe_masked;
for_each_pipe(dev_priv, pipe) {
dev_priv->de_irq_mask[pipe] = ~de_pipe_masked;
for_each_pipe(dev_priv, pipe)
if (intel_display_power_is_enabled(dev_priv,
POWER_DOMAIN_PIPE(pipe)))
GEN8_IRQ_INIT_NDX(DE_PIPE, pipe,
dev_priv->de_irq_mask[pipe],
de_pipe_enables);
}
GEN3_IRQ_INIT(GEN8_DE_PORT_, ~de_port_masked, de_port_enables);
GEN3_IRQ_INIT(GEN8_DE_MISC_, ~de_misc_masked, de_misc_masked);
@ -4000,11 +4015,12 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
void intel_irq_init(struct drm_i915_private *dev_priv)
{
struct drm_device *dev = &dev_priv->drm;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
int i;
intel_hpd_init_work(dev_priv);
INIT_WORK(&dev_priv->rps.work, gen6_pm_rps_work);
INIT_WORK(&rps->work, gen6_pm_rps_work);
INIT_WORK(&dev_priv->l3_parity.error_work, ivybridge_parity_work);
for (i = 0; i < MAX_L3_SLICES; ++i)
@ -4020,7 +4036,7 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
else
dev_priv->pm_rps_events = GEN6_PM_RPS_EVENTS;
dev_priv->rps.pm_intrmsk_mbz = 0;
rps->pm_intrmsk_mbz = 0;
/*
* SNB,IVB,HSW can while VLV,CHV may hard hang on looping batchbuffer
@ -4029,10 +4045,10 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
* TODO: verify if this can be reproduced on VLV,CHV.
*/
if (INTEL_GEN(dev_priv) <= 7)
dev_priv->rps.pm_intrmsk_mbz |= GEN6_PM_RP_UP_EI_EXPIRED;
rps->pm_intrmsk_mbz |= GEN6_PM_RP_UP_EI_EXPIRED;
if (INTEL_GEN(dev_priv) >= 8)
dev_priv->rps.pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
rps->pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
if (IS_GEN2(dev_priv)) {
/* Gen2 doesn't have a hardware frame counter */
@ -4166,7 +4182,7 @@ int intel_irq_install(struct drm_i915_private *dev_priv)
* interrupts as enabled _before_ actually enabling them to avoid
* special cases in our ordering checks.
*/
dev_priv->pm.irqs_enabled = true;
dev_priv->runtime_pm.irqs_enabled = true;
return drm_irq_install(&dev_priv->drm, dev_priv->drm.pdev->irq);
}
@ -4182,7 +4198,7 @@ void intel_irq_uninstall(struct drm_i915_private *dev_priv)
{
drm_irq_uninstall(&dev_priv->drm);
intel_hpd_cancel_work(dev_priv);
dev_priv->pm.irqs_enabled = false;
dev_priv->runtime_pm.irqs_enabled = false;
}
/**
@ -4195,7 +4211,7 @@ void intel_irq_uninstall(struct drm_i915_private *dev_priv)
void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv)
{
dev_priv->drm.driver->irq_uninstall(&dev_priv->drm);
dev_priv->pm.irqs_enabled = false;
dev_priv->runtime_pm.irqs_enabled = false;
synchronize_irq(dev_priv->drm.irq);
}
@ -4208,7 +4224,7 @@ void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv)
*/
void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv)
{
dev_priv->pm.irqs_enabled = true;
dev_priv->runtime_pm.irqs_enabled = true;
dev_priv->drm.driver->irq_preinstall(&dev_priv->drm);
dev_priv->drm.driver->irq_postinstall(&dev_priv->drm);
}

3
drivers/gpu/drm/i915/i915_params.c
View File

@ -146,9 +146,6 @@ i915_param_named(disable_display, bool, 0400,
i915_param_named_unsafe(enable_cmd_parser, bool, 0400,
"Enable command parsing (true=enabled [default], false=disabled)");
i915_param_named_unsafe(use_mmio_flip, int, 0600,
"use MMIO flips (-1=never, 0=driver discretion [default], 1=always)");
i915_param_named(mmio_debug, int, 0600,
"Enable the MMIO debug code for the first N failures (default: off). "
"This may negatively affect performance.");

1
drivers/gpu/drm/i915/i915_params.h
View File

@ -49,7 +49,6 @@
param(int, guc_log_level, -1) \
param(char *, guc_firmware_path, NULL) \
param(char *, huc_firmware_path, NULL) \
param(int, use_mmio_flip, 0) \
param(int, mmio_debug, 0) \
param(int, edp_vswing, 0) \
param(int, reset, 2) \

77
drivers/gpu/drm/i915/i915_pci.c
View File

@ -54,8 +54,14 @@
.color = { .degamma_lut_size = 512, .gamma_lut_size = 512 }
#define CHV_COLORS \
.color = { .degamma_lut_size = 65, .gamma_lut_size = 257 }
#define GLK_COLORS \
.color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
/* Keep in gen based order, and chronological order within a gen */
#define GEN_DEFAULT_PAGE_SIZES \
.page_sizes = I915_GTT_PAGE_SIZE_4K
#define GEN2_FEATURES \
.gen = 2, .num_pipes = 1, \
.has_overlay = 1, .overlay_needs_physical = 1, \
@ -65,6 +71,7 @@
.ring_mask = RENDER_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
GEN_DEFAULT_PAGE_SIZES, \
CURSOR_OFFSETS
static const struct intel_device_info intel_i830_info __initconst = {
@ -98,6 +105,7 @@ static const struct intel_device_info intel_i865g_info __initconst = {
.ring_mask = RENDER_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
GEN_DEFAULT_PAGE_SIZES, \
CURSOR_OFFSETS
static const struct intel_device_info intel_i915g_info __initconst = {
@ -161,6 +169,7 @@ static const struct intel_device_info intel_pineview_info __initconst = {
.ring_mask = RENDER_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
GEN_DEFAULT_PAGE_SIZES, \
CURSOR_OFFSETS
static const struct intel_device_info intel_i965g_info __initconst = {
@ -203,6 +212,7 @@ static const struct intel_device_info intel_gm45_info __initconst = {
.ring_mask = RENDER_RING | BSD_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
GEN_DEFAULT_PAGE_SIZES, \
CURSOR_OFFSETS
static const struct intel_device_info intel_ironlake_d_info __initconst = {
@ -226,6 +236,7 @@ static const struct intel_device_info intel_ironlake_m_info __initconst = {
.has_rc6p = 1, \
.has_aliasing_ppgtt = 1, \
GEN_DEFAULT_PIPEOFFSETS, \
GEN_DEFAULT_PAGE_SIZES, \
CURSOR_OFFSETS
#define SNB_D_PLATFORM \
@ -269,6 +280,7 @@ static const struct intel_device_info intel_sandybridge_m_gt2_info __initconst =
.has_aliasing_ppgtt = 1, \
.has_full_ppgtt = 1, \
GEN_DEFAULT_PIPEOFFSETS, \
GEN_DEFAULT_PAGE_SIZES, \
IVB_CURSOR_OFFSETS
#define IVB_D_PLATFORM \
@ -325,11 +337,12 @@ static const struct intel_device_info intel_valleyview_info __initconst = {
.has_snoop = true,
.ring_mask = RENDER_RING | BSD_RING | BLT_RING,
.display_mmio_offset = VLV_DISPLAY_BASE,
GEN_DEFAULT_PAGE_SIZES,
GEN_DEFAULT_PIPEOFFSETS,
CURSOR_OFFSETS
};
#define HSW_FEATURES \
#define G75_FEATURES \
GEN7_FEATURES, \
.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, \
.has_ddi = 1, \
@ -341,7 +354,7 @@ static const struct intel_device_info intel_valleyview_info __initconst = {
.has_runtime_pm = 1
#define HSW_PLATFORM \
HSW_FEATURES, \
G75_FEATURES, \
.platform = INTEL_HASWELL, \
.has_l3_dpf = 1
@ -360,16 +373,18 @@ static const struct intel_device_info intel_haswell_gt3_info __initconst = {
.gt = 3,
};
#define BDW_FEATURES \
HSW_FEATURES, \
#define GEN8_FEATURES \
G75_FEATURES, \
BDW_COLORS, \
.page_sizes = I915_GTT_PAGE_SIZE_4K | \
I915_GTT_PAGE_SIZE_2M, \
.has_logical_ring_contexts = 1, \
.has_full_48bit_ppgtt = 1, \
.has_64bit_reloc = 1, \
.has_reset_engine = 1
#define BDW_PLATFORM \
BDW_FEATURES, \
GEN8_FEATURES, \
.gen = 8, \
.platform = INTEL_BROADWELL
@ -415,19 +430,31 @@ static const struct intel_device_info intel_cherryview_info __initconst = {
.has_reset_engine = 1,
.has_snoop = true,
.display_mmio_offset = VLV_DISPLAY_BASE,
GEN_DEFAULT_PAGE_SIZES,
GEN_CHV_PIPEOFFSETS,
CURSOR_OFFSETS,
CHV_COLORS,
};
#define SKL_PLATFORM \
BDW_FEATURES, \
.gen = 9, \
.platform = INTEL_SKYLAKE, \
#define GEN9_DEFAULT_PAGE_SIZES \
.page_sizes = I915_GTT_PAGE_SIZE_4K | \
I915_GTT_PAGE_SIZE_64K | \
I915_GTT_PAGE_SIZE_2M
#define GEN9_FEATURES \
GEN8_FEATURES, \
GEN9_DEFAULT_PAGE_SIZES, \
.has_logical_ring_preemption = 1, \
.has_csr = 1, \
.has_guc = 1, \
.has_ipc = 1, \
.ddb_size = 896
#define SKL_PLATFORM \
GEN9_FEATURES, \
.gen = 9, \
.platform = INTEL_SKYLAKE
static const struct intel_device_info intel_skylake_gt1_info __initconst = {
SKL_PLATFORM,
.gt = 1,
@ -463,6 +490,7 @@ static const struct intel_device_info intel_skylake_gt4_info __initconst = {
.has_ddi = 1, \
.has_fpga_dbg = 1, \
.has_fbc = 1, \
.has_psr = 1, \
.has_runtime_pm = 1, \
.has_pooled_eu = 0, \
.has_csr = 1, \
@ -470,6 +498,7 @@ static const struct intel_device_info intel_skylake_gt4_info __initconst = {
.has_rc6 = 1, \
.has_dp_mst = 1, \
.has_logical_ring_contexts = 1, \
.has_logical_ring_preemption = 1, \
.has_guc = 1, \
.has_aliasing_ppgtt = 1, \
.has_full_ppgtt = 1, \
@ -477,6 +506,7 @@ static const struct intel_device_info intel_skylake_gt4_info __initconst = {
.has_reset_engine = 1, \
.has_snoop = true, \
.has_ipc = 1, \
GEN9_DEFAULT_PAGE_SIZES, \
GEN_DEFAULT_PIPEOFFSETS, \
IVB_CURSOR_OFFSETS, \
BDW_COLORS
@ -491,17 +521,13 @@ static const struct intel_device_info intel_geminilake_info __initconst = {
GEN9_LP_FEATURES,
.platform = INTEL_GEMINILAKE,
.ddb_size = 1024,
.color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
GLK_COLORS,
};
#define KBL_PLATFORM \
BDW_FEATURES, \
GEN9_FEATURES, \
.gen = 9, \
.platform = INTEL_KABYLAKE, \
.has_csr = 1, \
.has_guc = 1, \
.has_ipc = 1, \
.ddb_size = 896
.platform = INTEL_KABYLAKE
static const struct intel_device_info intel_kabylake_gt1_info __initconst = {
KBL_PLATFORM,
@ -520,13 +546,9 @@ static const struct intel_device_info intel_kabylake_gt3_info __initconst = {
};
#define CFL_PLATFORM \
BDW_FEATURES, \
GEN9_FEATURES, \
.gen = 9, \
.platform = INTEL_COFFEELAKE, \
.has_csr = 1, \
.has_guc = 1, \
.has_ipc = 1, \
.ddb_size = 896
.platform = INTEL_COFFEELAKE
static const struct intel_device_info intel_coffeelake_gt1_info __initconst = {
CFL_PLATFORM,
@ -544,16 +566,17 @@ static const struct intel_device_info intel_coffeelake_gt3_info __initconst = {
.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
};
#define GEN10_FEATURES \
GEN9_FEATURES, \
.ddb_size = 1024, \
GLK_COLORS
static const struct intel_device_info intel_cannonlake_gt2_info __initconst = {
BDW_FEATURES,
GEN10_FEATURES,
.is_alpha_support = 1,
.platform = INTEL_CANNONLAKE,
.gen = 10,
.gt = 2,
.ddb_size = 1024,
.has_csr = 1,
.has_ipc = 1,
.color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
};
/*

25
drivers/gpu/drm/i915/i915_reg.h
View File

@ -2371,6 +2371,9 @@ enum i915_power_well_id {
#define GEN9_GAMT_ECO_REG_RW_IA _MMIO(0x4ab0)
#define GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS (1<<18)
#define GEN8_GAMW_ECO_DEV_RW_IA _MMIO(0x4080)
#define GAMW_ECO_ENABLE_64K_IPS_FIELD 0xF
#define GAMT_CHKN_BIT_REG _MMIO(0x4ab8)
#define GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING (1<<28)
#define GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT (1<<24)
@ -3819,6 +3822,16 @@ enum {
#define PWM2_GATING_DIS (1 << 14)
#define PWM1_GATING_DIS (1 << 13)
#define _CLKGATE_DIS_PSL_A 0x46520
#define _CLKGATE_DIS_PSL_B 0x46524
#define _CLKGATE_DIS_PSL_C 0x46528
#define DPF_GATING_DIS (1 << 10)
#define DPF_RAM_GATING_DIS (1 << 9)
#define DPFR_GATING_DIS (1 << 8)
#define CLKGATE_DIS_PSL(pipe) \
_MMIO_PIPE(pipe, _CLKGATE_DIS_PSL_A, _CLKGATE_DIS_PSL_B)
/*
* GEN10 clock gating regs
*/
@ -5671,8 +5684,7 @@ enum {
#define CBR_PWM_CLOCK_MUX_SELECT (1<<30)
#define CBR4_VLV _MMIO(VLV_DISPLAY_BASE + 0x70450)
#define CBR_DPLLBMD_PIPE_C (1<<29)
#define CBR_DPLLBMD_PIPE_B (1<<18)
#define CBR_DPLLBMD_PIPE(pipe) (1<<(7+(pipe)*11)) /* pipes B and C */
/* FIFO watermark sizes etc */
#define G4X_FIFO_LINE_SIZE 64
@ -6993,6 +7005,12 @@ enum {
#define GEN9_CS_DEBUG_MODE1 _MMIO(0x20ec)
#define GEN9_CTX_PREEMPT_REG _MMIO(0x2248)
#define GEN8_CS_CHICKEN1 _MMIO(0x2580)
#define GEN9_PREEMPT_3D_OBJECT_LEVEL (1<<0)
#define GEN9_PREEMPT_GPGPU_LEVEL(hi, lo) (((hi) << 2) | ((lo) << 1))
#define GEN9_PREEMPT_GPGPU_MID_THREAD_LEVEL GEN9_PREEMPT_GPGPU_LEVEL(0, 0)
#define GEN9_PREEMPT_GPGPU_THREAD_GROUP_LEVEL GEN9_PREEMPT_GPGPU_LEVEL(0, 1)
#define GEN9_PREEMPT_GPGPU_COMMAND_LEVEL GEN9_PREEMPT_GPGPU_LEVEL(1, 0)
#define GEN9_PREEMPT_GPGPU_LEVEL_MASK GEN9_PREEMPT_GPGPU_LEVEL(1, 1)
/* GEN7 chicken */
#define GEN7_COMMON_SLICE_CHICKEN1 _MMIO(0x7010)
@ -7164,9 +7182,6 @@ enum {
#define SERR_INT _MMIO(0xc4040)
#define SERR_INT_POISON (1<<31)
#define SERR_INT_TRANS_C_FIFO_UNDERRUN (1<<6)
#define SERR_INT_TRANS_B_FIFO_UNDERRUN (1<<3)
#define SERR_INT_TRANS_A_FIFO_UNDERRUN (1<<0)
#define SERR_INT_TRANS_FIFO_UNDERRUN(pipe) (1<<((pipe)*3))
/* digital port hotplug */

2
drivers/gpu/drm/i915/i915_suspend.c
View File

@ -108,8 +108,6 @@ int i915_restore_state(struct drm_i915_private *dev_priv)
mutex_lock(&dev_priv->drm.struct_mutex);
i915_gem_restore_fences(dev_priv);
if (IS_GEN4(dev_priv))
pci_write_config_word(pdev, GCDGMBUS,
dev_priv->regfile.saveGCDGMBUS);

76
drivers/gpu/drm/i915/i915_sysfs.c
View File

@ -49,7 +49,7 @@ static u32 calc_residency(struct drm_i915_private *dev_priv,
static ssize_t
show_rc6_mask(struct device *kdev, struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%x\n", intel_enable_rc6());
return snprintf(buf, PAGE_SIZE, "%x\n", intel_rc6_enabled());
}
static ssize_t
@ -246,7 +246,7 @@ static ssize_t gt_act_freq_mhz_show(struct device *kdev,
intel_runtime_pm_get(dev_priv);
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
u32 freq;
freq = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
@ -261,7 +261,7 @@ static ssize_t gt_act_freq_mhz_show(struct device *kdev,
ret = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
ret = intel_gpu_freq(dev_priv, ret);
}
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
intel_runtime_pm_put(dev_priv);
@ -275,7 +275,7 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->rps.cur_freq));
dev_priv->gt_pm.rps.cur_freq));
}
static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
@ -284,7 +284,7 @@ static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribu
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->rps.boost_freq));
dev_priv->gt_pm.rps.boost_freq));
}
static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
@ -292,6 +292,7 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
const char *buf, size_t count)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
u32 val;
ssize_t ret;
@ -301,12 +302,12 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
/* Validate against (static) hardware limits */
val = intel_freq_opcode(dev_priv, val);
if (val < dev_priv->rps.min_freq || val > dev_priv->rps.max_freq)
if (val < rps->min_freq || val > rps->max_freq)
return -EINVAL;
mutex_lock(&dev_priv->rps.hw_lock);
dev_priv->rps.boost_freq = val;
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
rps->boost_freq = val;
mutex_unlock(&dev_priv->pcu_lock);
return count;
}
@ -318,7 +319,7 @@ static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->rps.efficient_freq));
dev_priv->gt_pm.rps.efficient_freq));
}
static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
@ -327,7 +328,7 @@ static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->rps.max_freq_softlimit));
dev_priv->gt_pm.rps.max_freq_softlimit));
}
static ssize_t gt_max_freq_mhz_store(struct device *kdev,
@ -335,6 +336,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
const char *buf, size_t count)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
u32 val;
ssize_t ret;
@ -344,34 +346,34 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
intel_runtime_pm_get(dev_priv);
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
val = intel_freq_opcode(dev_priv, val);
if (val < dev_priv->rps.min_freq ||
val > dev_priv->rps.max_freq ||
val < dev_priv->rps.min_freq_softlimit) {
mutex_unlock(&dev_priv->rps.hw_lock);
if (val < rps->min_freq ||
val > rps->max_freq ||
val < rps->min_freq_softlimit) {
mutex_unlock(&dev_priv->pcu_lock);
intel_runtime_pm_put(dev_priv);
return -EINVAL;
}
if (val > dev_priv->rps.rp0_freq)
if (val > rps->rp0_freq)
DRM_DEBUG("User requested overclocking to %d\n",
intel_gpu_freq(dev_priv, val));
dev_priv->rps.max_freq_softlimit = val;
rps->max_freq_softlimit = val;
val = clamp_t(int, dev_priv->rps.cur_freq,
dev_priv->rps.min_freq_softlimit,
dev_priv->rps.max_freq_softlimit);
val = clamp_t(int, rps->cur_freq,
rps->min_freq_softlimit,
rps->max_freq_softlimit);
/* We still need *_set_rps to process the new max_delay and
* update the interrupt limits and PMINTRMSK even though
* frequency request may be unchanged. */
ret = intel_set_rps(dev_priv, val);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
intel_runtime_pm_put(dev_priv);
@ -384,7 +386,7 @@ static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->rps.min_freq_softlimit));
dev_priv->gt_pm.rps.min_freq_softlimit));
}
static ssize_t gt_min_freq_mhz_store(struct device *kdev,
@ -392,6 +394,7 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
const char *buf, size_t count)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
u32 val;
ssize_t ret;
@ -401,30 +404,30 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
intel_runtime_pm_get(dev_priv);
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
val = intel_freq_opcode(dev_priv, val);
if (val < dev_priv->rps.min_freq ||
val > dev_priv->rps.max_freq ||
val > dev_priv->rps.max_freq_softlimit) {
mutex_unlock(&dev_priv->rps.hw_lock);
if (val < rps->min_freq ||
val > rps->max_freq ||
val > rps->max_freq_softlimit) {
mutex_unlock(&dev_priv->pcu_lock);
intel_runtime_pm_put(dev_priv);
return -EINVAL;
}
dev_priv->rps.min_freq_softlimit = val;
rps->min_freq_softlimit = val;
val = clamp_t(int, dev_priv->rps.cur_freq,
dev_priv->rps.min_freq_softlimit,
dev_priv->rps.max_freq_softlimit);
val = clamp_t(int, rps->cur_freq,
rps->min_freq_softlimit,
rps->max_freq_softlimit);
/* We still need *_set_rps to process the new min_delay and
* update the interrupt limits and PMINTRMSK even though
* frequency request may be unchanged. */
ret = intel_set_rps(dev_priv, val);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
intel_runtime_pm_put(dev_priv);
@ -448,14 +451,15 @@ static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
u32 val;
if (attr == &dev_attr_gt_RP0_freq_mhz)
val = intel_gpu_freq(dev_priv, dev_priv->rps.rp0_freq);
val = intel_gpu_freq(dev_priv, rps->rp0_freq);
else if (attr == &dev_attr_gt_RP1_freq_mhz)
val = intel_gpu_freq(dev_priv, dev_priv->rps.rp1_freq);
val = intel_gpu_freq(dev_priv, rps->rp1_freq);
else if (attr == &dev_attr_gt_RPn_freq_mhz)
val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq);
val = intel_gpu_freq(dev_priv, rps->min_freq);
else
BUG();

116
drivers/gpu/drm/i915/i915_trace.h
View File

@ -345,7 +345,7 @@ TRACE_EVENT(i915_gem_object_create,
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, size)
__field(u64, size)
),
TP_fast_assign(
@ -353,7 +353,7 @@ TRACE_EVENT(i915_gem_object_create,
__entry->size = obj->base.size;
),
TP_printk("obj=%p, size=%u", __entry->obj, __entry->size)
TP_printk("obj=%p, size=0x%llx", __entry->obj, __entry->size)
);
TRACE_EVENT(i915_gem_shrink,
@ -384,7 +384,7 @@ TRACE_EVENT(i915_vma_bind,
__field(struct drm_i915_gem_object *, obj)
__field(struct i915_address_space *, vm)
__field(u64, offset)
__field(u32, size)
__field(u64, size)
__field(unsigned, flags)
),
@ -396,7 +396,7 @@ TRACE_EVENT(i915_vma_bind,
__entry->flags = flags;
),
TP_printk("obj=%p, offset=%016llx size=%x%s vm=%p",
TP_printk("obj=%p, offset=0x%016llx size=0x%llx%s vm=%p",
__entry->obj, __entry->offset, __entry->size,
__entry->flags & PIN_MAPPABLE ? ", mappable" : "",
__entry->vm)
@ -410,7 +410,7 @@ TRACE_EVENT(i915_vma_unbind,
__field(struct drm_i915_gem_object *, obj)
__field(struct i915_address_space *, vm)
__field(u64, offset)
__field(u32, size)
__field(u64, size)
),
TP_fast_assign(
@ -420,18 +420,18 @@ TRACE_EVENT(i915_vma_unbind,
__entry->size = vma->node.size;
),
TP_printk("obj=%p, offset=%016llx size=%x vm=%p",
TP_printk("obj=%p, offset=0x%016llx size=0x%llx vm=%p",
__entry->obj, __entry->offset, __entry->size, __entry->vm)
);
TRACE_EVENT(i915_gem_object_pwrite,
TP_PROTO(struct drm_i915_gem_object *obj, u32 offset, u32 len),
TP_PROTO(struct drm_i915_gem_object *obj, u64 offset, u64 len),
TP_ARGS(obj, offset, len),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, offset)
__field(u32, len)
__field(u64, offset)
__field(u64, len)
),
TP_fast_assign(
@ -440,18 +440,18 @@ TRACE_EVENT(i915_gem_object_pwrite,
__entry->len = len;
),
TP_printk("obj=%p, offset=%u, len=%u",
TP_printk("obj=%p, offset=0x%llx, len=0x%llx",
__entry->obj, __entry->offset, __entry->len)
);
TRACE_EVENT(i915_gem_object_pread,
TP_PROTO(struct drm_i915_gem_object *obj, u32 offset, u32 len),
TP_PROTO(struct drm_i915_gem_object *obj, u64 offset, u64 len),
TP_ARGS(obj, offset, len),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, offset)
__field(u32, len)
__field(u64, offset)
__field(u64, len)
),
TP_fast_assign(
@ -460,17 +460,17 @@ TRACE_EVENT(i915_gem_object_pread,
__entry->len = len;
),
TP_printk("obj=%p, offset=%u, len=%u",
TP_printk("obj=%p, offset=0x%llx, len=0x%llx",
__entry->obj, __entry->offset, __entry->len)
);
TRACE_EVENT(i915_gem_object_fault,
TP_PROTO(struct drm_i915_gem_object *obj, u32 index, bool gtt, bool write),
TP_PROTO(struct drm_i915_gem_object *obj, u64 index, bool gtt, bool write),
TP_ARGS(obj, index, gtt, write),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, index)
__field(u64, index)
__field(bool, gtt)
__field(bool, write)
),
@ -482,7 +482,7 @@ TRACE_EVENT(i915_gem_object_fault,
__entry->write = write;
),
TP_printk("obj=%p, %s index=%u %s",
TP_printk("obj=%p, %s index=%llu %s",
__entry->obj,
__entry->gtt ? "GTT" : "CPU",
__entry->index,
@ -515,14 +515,14 @@ DEFINE_EVENT(i915_gem_object, i915_gem_object_destroy,
);
TRACE_EVENT(i915_gem_evict,
TP_PROTO(struct i915_address_space *vm, u32 size, u32 align, unsigned int flags),
TP_PROTO(struct i915_address_space *vm, u64 size, u64 align, unsigned int flags),
TP_ARGS(vm, size, align, flags),
TP_STRUCT__entry(
__field(u32, dev)
__field(struct i915_address_space *, vm)
__field(u32, size)
__field(u32, align)
__field(u64, size)
__field(u64, align)
__field(unsigned int, flags)
),
@ -534,43 +534,11 @@ TRACE_EVENT(i915_gem_evict,
__entry->flags = flags;
),
TP_printk("dev=%d, vm=%p, size=%d, align=%d %s",
TP_printk("dev=%d, vm=%p, size=0x%llx, align=0x%llx %s",
__entry->dev, __entry->vm, __entry->size, __entry->align,
__entry->flags & PIN_MAPPABLE ? ", mappable" : "")
);
TRACE_EVENT(i915_gem_evict_everything,
TP_PROTO(struct drm_device *dev),
TP_ARGS(dev),
TP_STRUCT__entry(
__field(u32, dev)
),
TP_fast_assign(
__entry->dev = dev->primary->index;
),
TP_printk("dev=%d", __entry->dev)
);
TRACE_EVENT(i915_gem_evict_vm,
TP_PROTO(struct i915_address_space *vm),
TP_ARGS(vm),
TP_STRUCT__entry(
__field(u32, dev)
__field(struct i915_address_space *, vm)
),
TP_fast_assign(
__entry->dev = vm->i915->drm.primary->index;
__entry->vm = vm;
),
TP_printk("dev=%d, vm=%p", __entry->dev, __entry->vm)
);
TRACE_EVENT(i915_gem_evict_node,
TP_PROTO(struct i915_address_space *vm, struct drm_mm_node *node, unsigned int flags),
TP_ARGS(vm, node, flags),
@ -593,12 +561,29 @@ TRACE_EVENT(i915_gem_evict_node,
__entry->flags = flags;
),
TP_printk("dev=%d, vm=%p, start=%llx size=%llx, color=%lx, flags=%x",
TP_printk("dev=%d, vm=%p, start=0x%llx size=0x%llx, color=0x%lx, flags=%x",
__entry->dev, __entry->vm,
__entry->start, __entry->size,
__entry->color, __entry->flags)
);
TRACE_EVENT(i915_gem_evict_vm,
TP_PROTO(struct i915_address_space *vm),
TP_ARGS(vm),
TP_STRUCT__entry(
__field(u32, dev)
__field(struct i915_address_space *, vm)
),
TP_fast_assign(
__entry->dev = vm->i915->drm.primary->index;
__entry->vm = vm;
),
TP_printk("dev=%d, vm=%p", __entry->dev, __entry->vm)
);
TRACE_EVENT(i915_gem_ring_sync_to,
TP_PROTO(struct drm_i915_gem_request *to,
struct drm_i915_gem_request *from),
@ -649,29 +634,6 @@ TRACE_EVENT(i915_gem_request_queue,
__entry->flags)
);
TRACE_EVENT(i915_gem_ring_flush,
TP_PROTO(struct drm_i915_gem_request *req, u32 invalidate, u32 flush),
TP_ARGS(req, invalidate, flush),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, invalidate)
__field(u32, flush)
),
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->ring = req->engine->id;
__entry->invalidate = invalidate;
__entry->flush = flush;
),
TP_printk("dev=%u, ring=%x, invalidate=%04x, flush=%04x",
__entry->dev, __entry->ring,
__entry->invalidate, __entry->flush)
);
DECLARE_EVENT_CLASS(i915_gem_request,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req),

18
drivers/gpu/drm/i915/i915_utils.h
View File

@ -99,6 +99,11 @@
__T; \
})
static inline u64 ptr_to_u64(const void *ptr)
{
return (uintptr_t)ptr;
}
#define u64_to_ptr(T, x) ({ \
typecheck(u64, x); \
(T *)(uintptr_t)(x); \
@ -119,4 +124,17 @@ static inline void __list_del_many(struct list_head *head,
WRITE_ONCE(head->next, first);
}
/*
* Wait until the work is finally complete, even if it tries to postpone
* by requeueing itself. Note, that if the worker never cancels itself,
* we will spin forever.
*/
static inline void drain_delayed_work(struct delayed_work *dw)
{
do {
while (flush_delayed_work(dw))
;
} while (delayed_work_pending(dw));
}
#endif /* !__I915_UTILS_H */

121
drivers/gpu/drm/i915/i915_vma.c
View File

@ -266,6 +266,8 @@ int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
if (bind_flags == 0)
return 0;
GEM_BUG_ON(!vma->pages);
trace_i915_vma_bind(vma, bind_flags);
ret = vma->vm->bind_vma(vma, cache_level, bind_flags);
if (ret)
@ -278,13 +280,16 @@ int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
{
void __iomem *ptr;
int err;
/* Access through the GTT requires the device to be awake. */
assert_rpm_wakelock_held(vma->vm->i915);
lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
if (WARN_ON(!i915_vma_is_map_and_fenceable(vma)))
return IO_ERR_PTR(-ENODEV);
if (WARN_ON(!i915_vma_is_map_and_fenceable(vma))) {
err = -ENODEV;
goto err;
}
GEM_BUG_ON(!i915_vma_is_ggtt(vma));
GEM_BUG_ON((vma->flags & I915_VMA_GLOBAL_BIND) == 0);
@ -294,14 +299,36 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
ptr = io_mapping_map_wc(&i915_vm_to_ggtt(vma->vm)->mappable,
vma->node.start,
vma->node.size);
if (ptr == NULL)
return IO_ERR_PTR(-ENOMEM);
if (ptr == NULL) {
err = -ENOMEM;
goto err;
}
vma->iomap = ptr;
}
__i915_vma_pin(vma);
err = i915_vma_pin_fence(vma);
if (err)
goto err_unpin;
return ptr;
err_unpin:
__i915_vma_unpin(vma);
err:
return IO_ERR_PTR(err);
}
void i915_vma_unpin_iomap(struct i915_vma *vma)
{
lockdep_assert_held(&vma->obj->base.dev->struct_mutex);
GEM_BUG_ON(vma->iomap == NULL);
i915_vma_unpin_fence(vma);
i915_vma_unpin(vma);
}
void i915_vma_unpin_and_release(struct i915_vma **p_vma)
@ -471,25 +498,64 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
if (ret)
return ret;
GEM_BUG_ON(vma->pages);
ret = vma->vm->set_pages(vma);
if (ret)
goto err_unpin;
if (flags & PIN_OFFSET_FIXED) {
u64 offset = flags & PIN_OFFSET_MASK;
if (!IS_ALIGNED(offset, alignment) ||
range_overflows(offset, size, end)) {
ret = -EINVAL;
goto err_unpin;
goto err_clear;
}
ret = i915_gem_gtt_reserve(vma->vm, &vma->node,
size, offset, obj->cache_level,
flags);
if (ret)
goto err_unpin;
goto err_clear;
} else {
/*
* We only support huge gtt pages through the 48b PPGTT,
* however we also don't want to force any alignment for
* objects which need to be tightly packed into the low 32bits.
*
* Note that we assume that GGTT are limited to 4GiB for the
* forseeable future. See also i915_ggtt_offset().
*/
if (upper_32_bits(end - 1) &&
vma->page_sizes.sg > I915_GTT_PAGE_SIZE) {
/*
* We can't mix 64K and 4K PTEs in the same page-table
* (2M block), and so to avoid the ugliness and
* complexity of coloring we opt for just aligning 64K
* objects to 2M.
*/
u64 page_alignment =
rounddown_pow_of_two(vma->page_sizes.sg |
I915_GTT_PAGE_SIZE_2M);
/*
* Check we don't expand for the limited Global GTT
* (mappable aperture is even more precious!). This
* also checks that we exclude the aliasing-ppgtt.
*/
GEM_BUG_ON(i915_vma_is_ggtt(vma));
alignment = max(alignment, page_alignment);
if (vma->page_sizes.sg & I915_GTT_PAGE_SIZE_64K)
size = round_up(size, I915_GTT_PAGE_SIZE_2M);
}
ret = i915_gem_gtt_insert(vma->vm, &vma->node,
size, alignment, obj->cache_level,
start, end, flags);
if (ret)
goto err_unpin;
goto err_clear;
GEM_BUG_ON(vma->node.start < start);
GEM_BUG_ON(vma->node.start + vma->node.size > end);
@ -504,6 +570,8 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
return 0;
err_clear:
vma->vm->clear_pages(vma);
err_unpin:
i915_gem_object_unpin_pages(obj);
return ret;
@ -517,6 +585,8 @@ i915_vma_remove(struct i915_vma *vma)
GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
GEM_BUG_ON(vma->flags & (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND));
vma->vm->clear_pages(vma);
drm_mm_remove_node(&vma->node);
list_move_tail(&vma->vm_link, &vma->vm->unbound_list);
@ -569,8 +639,8 @@ int __i915_vma_do_pin(struct i915_vma *vma,
err_remove:
if ((bound & I915_VMA_BIND_MASK) == 0) {
GEM_BUG_ON(vma->pages);
i915_vma_remove(vma);
GEM_BUG_ON(vma->pages);
}
err_unpin:
__i915_vma_unpin(vma);
@ -620,6 +690,30 @@ static void __i915_vma_iounmap(struct i915_vma *vma)
vma->iomap = NULL;
}
void i915_vma_revoke_mmap(struct i915_vma *vma)
{
struct drm_vma_offset_node *node = &vma->obj->base.vma_node;
u64 vma_offset;
lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
if (!i915_vma_has_userfault(vma))
return;
GEM_BUG_ON(!i915_vma_is_map_and_fenceable(vma));
GEM_BUG_ON(!vma->obj->userfault_count);
vma_offset = vma->ggtt_view.partial.offset << PAGE_SHIFT;
unmap_mapping_range(vma->vm->i915->drm.anon_inode->i_mapping,
drm_vma_node_offset_addr(node) + vma_offset,
vma->size,
1);
i915_vma_unset_userfault(vma);
if (!--vma->obj->userfault_count)
list_del(&vma->obj->userfault_link);
}
int i915_vma_unbind(struct i915_vma *vma)
{
struct drm_i915_gem_object *obj = vma->obj;
@ -683,11 +777,13 @@ int i915_vma_unbind(struct i915_vma *vma)
return ret;
/* Force a pagefault for domain tracking on next user access */
i915_gem_release_mmap(obj);
i915_vma_revoke_mmap(vma);
__i915_vma_iounmap(vma);
vma->flags &= ~I915_VMA_CAN_FENCE;
}
GEM_BUG_ON(vma->fence);
GEM_BUG_ON(i915_vma_has_userfault(vma));
if (likely(!vma->vm->closed)) {
trace_i915_vma_unbind(vma);
@ -695,13 +791,6 @@ int i915_vma_unbind(struct i915_vma *vma)
}
vma->flags &= ~(I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND);
if (vma->pages != obj->mm.pages) {
GEM_BUG_ON(!vma->pages);
sg_free_table(vma->pages);
kfree(vma->pages);
}
vma->pages = NULL;
i915_vma_remove(vma);
destroy:

49
drivers/gpu/drm/i915/i915_vma.h
View File

@ -55,6 +55,7 @@ struct i915_vma {
void __iomem *iomap;
u64 size;
u64 display_alignment;
struct i915_page_sizes page_sizes;
u32 fence_size;
u32 fence_alignment;
@ -65,7 +66,7 @@ struct i915_vma {
* that exist in the ctx->handle_vmas LUT for this vma.
*/
unsigned int open_count;
unsigned int flags;
unsigned long flags;
/**
* How many users have pinned this object in GTT space. The following
* users can each hold at most one reference: pwrite/pread, execbuffer
@ -87,6 +88,8 @@ struct i915_vma {
#define I915_VMA_GGTT BIT(8)
#define I915_VMA_CAN_FENCE BIT(9)
#define I915_VMA_CLOSED BIT(10)
#define I915_VMA_USERFAULT_BIT 11
#define I915_VMA_USERFAULT BIT(I915_VMA_USERFAULT_BIT)
unsigned int active;
struct i915_gem_active last_read[I915_NUM_ENGINES];
@ -145,6 +148,22 @@ static inline bool i915_vma_is_closed(const struct i915_vma *vma)
return vma->flags & I915_VMA_CLOSED;
}
static inline bool i915_vma_set_userfault(struct i915_vma *vma)
{
GEM_BUG_ON(!i915_vma_is_map_and_fenceable(vma));
return __test_and_set_bit(I915_VMA_USERFAULT_BIT, &vma->flags);
}
static inline void i915_vma_unset_userfault(struct i915_vma *vma)
{
return __clear_bit(I915_VMA_USERFAULT_BIT, &vma->flags);
}
static inline bool i915_vma_has_userfault(const struct i915_vma *vma)
{
return test_bit(I915_VMA_USERFAULT_BIT, &vma->flags);
}
static inline unsigned int i915_vma_get_active(const struct i915_vma *vma)
{
return vma->active;
@ -243,6 +262,7 @@ bool i915_gem_valid_gtt_space(struct i915_vma *vma, unsigned long cache_level);
bool i915_vma_misplaced(const struct i915_vma *vma,
u64 size, u64 alignment, u64 flags);
void __i915_vma_set_map_and_fenceable(struct i915_vma *vma);
void i915_vma_revoke_mmap(struct i915_vma *vma);
int __must_check i915_vma_unbind(struct i915_vma *vma);
void i915_vma_unlink_ctx(struct i915_vma *vma);
void i915_vma_close(struct i915_vma *vma);
@ -321,12 +341,7 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma);
* Callers must hold the struct_mutex. This function is only valid to be
* called on a VMA previously iomapped by the caller with i915_vma_pin_iomap().
*/
static inline void i915_vma_unpin_iomap(struct i915_vma *vma)
{
lockdep_assert_held(&vma->obj->base.dev->struct_mutex);
GEM_BUG_ON(vma->iomap == NULL);
i915_vma_unpin(vma);
}
void i915_vma_unpin_iomap(struct i915_vma *vma);
static inline struct page *i915_vma_first_page(struct i915_vma *vma)
{
@ -349,15 +364,13 @@ static inline struct page *i915_vma_first_page(struct i915_vma *vma)
*
* True if the vma has a fence, false otherwise.
*/
static inline bool
i915_vma_pin_fence(struct i915_vma *vma)
int i915_vma_pin_fence(struct i915_vma *vma);
int __must_check i915_vma_put_fence(struct i915_vma *vma);
static inline void __i915_vma_unpin_fence(struct i915_vma *vma)
{
lockdep_assert_held(&vma->obj->base.dev->struct_mutex);
if (vma->fence) {
vma->fence->pin_count++;
return true;
} else
return false;
GEM_BUG_ON(vma->fence->pin_count <= 0);
vma->fence->pin_count--;
}
/**
@ -372,10 +385,8 @@ static inline void
i915_vma_unpin_fence(struct i915_vma *vma)
{
lockdep_assert_held(&vma->obj->base.dev->struct_mutex);
if (vma->fence) {
GEM_BUG_ON(vma->fence->pin_count <= 0);
vma->fence->pin_count--;
}
if (vma->fence)
__i915_vma_unpin_fence(vma);
}
#endif

2
drivers/gpu/drm/i915/intel_audio.c
View File

@ -754,7 +754,7 @@ static struct intel_encoder *get_saved_enc(struct drm_i915_private *dev_priv,
{
struct intel_encoder *encoder;
if (WARN_ON(pipe >= I915_MAX_PIPES))
if (WARN_ON(pipe >= INTEL_INFO(dev_priv)->num_pipes))
return NULL;
/* MST */

130
drivers/gpu/drm/i915/intel_bios.c
View File

@ -431,27 +431,6 @@ parse_general_features(struct drm_i915_private *dev_priv,
dev_priv->vbt.fdi_rx_polarity_inverted);
}
static void
parse_general_definitions(struct drm_i915_private *dev_priv,
const struct bdb_header *bdb)
{
const struct bdb_general_definitions *general;
general = find_section(bdb, BDB_GENERAL_DEFINITIONS);
if (general) {
u16 block_size = get_blocksize(general);
if (block_size >= sizeof(*general)) {
int bus_pin = general->crt_ddc_gmbus_pin;
DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin);
if (intel_gmbus_is_valid_pin(dev_priv, bus_pin))
dev_priv->vbt.crt_ddc_pin = bus_pin;
} else {
DRM_DEBUG_KMS("BDB_GD too small (%d). Invalid.\n",
block_size);
}
}
}
static const struct child_device_config *
child_device_ptr(const struct bdb_general_definitions *defs, int i)
{
@ -459,41 +438,24 @@ child_device_ptr(const struct bdb_general_definitions *defs, int i)
}
static void
parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
const struct bdb_header *bdb)
parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, u8 bdb_version)
{
struct sdvo_device_mapping *mapping;
const struct bdb_general_definitions *defs;
const struct child_device_config *child;
int i, child_device_num, count;
u16 block_size;
defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
if (!defs) {
DRM_DEBUG_KMS("No general definition block is found, unable to construct sdvo mapping.\n");
return;
}
int i, count = 0;
/*
* Only parse SDVO mappings when the general definitions block child
* device size matches that of the *legacy* child device config
* struct. Thus, SDVO mapping will be skipped for newer VBT.
* Only parse SDVO mappings on gens that could have SDVO. This isn't
* accurate and doesn't have to be, as long as it's not too strict.
*/
if (defs->child_dev_size != LEGACY_CHILD_DEVICE_CONFIG_SIZE) {
DRM_DEBUG_KMS("Unsupported child device size for SDVO mapping.\n");
if (!IS_GEN(dev_priv, 3, 7)) {
DRM_DEBUG_KMS("Skipping SDVO device mapping\n");
return;
}
/* get the block size of general definitions */
block_size = get_blocksize(defs);
/* get the number of child device */
child_device_num = (block_size - sizeof(*defs)) / defs->child_dev_size;
count = 0;
for (i = 0; i < child_device_num; i++) {
child = child_device_ptr(defs, i);
if (!child->device_type) {
/* skip the device block if device type is invalid */
continue;
}
for (i = 0, count = 0; i < dev_priv->vbt.child_dev_num; i++) {
child = dev_priv->vbt.child_dev + i;
if (child->slave_addr != SLAVE_ADDR1 &&
child->slave_addr != SLAVE_ADDR2) {
/*
@ -544,7 +506,6 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
/* No SDVO device info is found */
DRM_DEBUG_KMS("No SDVO device info is found in VBT\n");
}
return;
}
static void
@ -1111,7 +1072,7 @@ static void sanitize_aux_ch(struct drm_i915_private *dev_priv,
}
static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
const struct bdb_header *bdb)
u8 bdb_version)
{
struct child_device_config *it, *child = NULL;
struct ddi_vbt_port_info *info = &dev_priv->vbt.ddi_port_info[port];
@ -1215,7 +1176,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
sanitize_aux_ch(dev_priv, port);
}
if (bdb->version >= 158) {
if (bdb_version >= 158) {
/* The VBT HDMI level shift values match the table we have. */
hdmi_level_shift = child->hdmi_level_shifter_value;
DRM_DEBUG_KMS("VBT HDMI level shift for port %c: %d\n",
@ -1225,7 +1186,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
}
/* Parse the I_boost config for SKL and above */
if (bdb->version >= 196 && child->iboost) {
if (bdb_version >= 196 && child->iboost) {
info->dp_boost_level = translate_iboost(child->dp_iboost_level);
DRM_DEBUG_KMS("VBT (e)DP boost level for port %c: %d\n",
port_name(port), info->dp_boost_level);
@ -1235,40 +1196,52 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
}
}
static void parse_ddi_ports(struct drm_i915_private *dev_priv,
const struct bdb_header *bdb)
static void parse_ddi_ports(struct drm_i915_private *dev_priv, u8 bdb_version)
{
enum port port;
if (!HAS_DDI(dev_priv))
if (!HAS_DDI(dev_priv) && !IS_CHERRYVIEW(dev_priv))
return;
if (!dev_priv->vbt.child_dev_num)
return;
if (bdb->version < 155)
if (bdb_version < 155)
return;
for (port = PORT_A; port < I915_MAX_PORTS; port++)
parse_ddi_port(dev_priv, port, bdb);
parse_ddi_port(dev_priv, port, bdb_version);
}
static void
parse_device_mapping(struct drm_i915_private *dev_priv,
const struct bdb_header *bdb)
parse_general_definitions(struct drm_i915_private *dev_priv,
const struct bdb_header *bdb)
{
const struct bdb_general_definitions *defs;
const struct child_device_config *child;
struct child_device_config *child_dev_ptr;
int i, child_device_num, count;
u8 expected_size;
u16 block_size;
int bus_pin;
defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
if (!defs) {
DRM_DEBUG_KMS("No general definition block is found, no devices defined.\n");
return;
}
block_size = get_blocksize(defs);
if (block_size < sizeof(*defs)) {
DRM_DEBUG_KMS("General definitions block too small (%u)\n",
block_size);
return;
}
bus_pin = defs->crt_ddc_gmbus_pin;
DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin);
if (intel_gmbus_is_valid_pin(dev_priv, bus_pin))
dev_priv->vbt.crt_ddc_pin = bus_pin;
if (bdb->version < 106) {
expected_size = 22;
} else if (bdb->version < 111) {
@ -1298,18 +1271,14 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
return;
}
/* get the block size of general definitions */
block_size = get_blocksize(defs);
/* get the number of child device */
child_device_num = (block_size - sizeof(*defs)) / defs->child_dev_size;
count = 0;
/* get the number of child device that is present */
for (i = 0; i < child_device_num; i++) {
child = child_device_ptr(defs, i);
if (!child->device_type) {
/* skip the device block if device type is invalid */
if (!child->device_type)
continue;
}
count++;
}
if (!count) {
@ -1326,36 +1295,18 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
count = 0;
for (i = 0; i < child_device_num; i++) {
child = child_device_ptr(defs, i);
if (!child->device_type) {
/* skip the device block if device type is invalid */
if (!child->device_type)
continue;
}
child_dev_ptr = dev_priv->vbt.child_dev + count;
count++;
/*
* Copy as much as we know (sizeof) and is available
* (child_dev_size) of the child device. Accessing the data must
* depend on VBT version.
*/
memcpy(child_dev_ptr, child,
memcpy(dev_priv->vbt.child_dev + count, child,
min_t(size_t, defs->child_dev_size, sizeof(*child)));
/*
* copied full block, now init values when they are not
* available in current version
*/
if (bdb->version < 196) {
/* Set default values for bits added from v196 */
child_dev_ptr->iboost = 0;
child_dev_ptr->hpd_invert = 0;
}
if (bdb->version < 192)
child_dev_ptr->lspcon = 0;
count++;
}
return;
}
/* Common defaults which may be overridden by VBT. */
@ -1536,14 +1487,15 @@ void intel_bios_init(struct drm_i915_private *dev_priv)
parse_lfp_panel_data(dev_priv, bdb);
parse_lfp_backlight(dev_priv, bdb);
parse_sdvo_panel_data(dev_priv, bdb);
parse_sdvo_device_mapping(dev_priv, bdb);
parse_device_mapping(dev_priv, bdb);
parse_driver_features(dev_priv, bdb);
parse_edp(dev_priv, bdb);
parse_psr(dev_priv, bdb);
parse_mipi_config(dev_priv, bdb);
parse_mipi_sequence(dev_priv, bdb);
parse_ddi_ports(dev_priv, bdb);
/* Further processing on pre-parsed data */
parse_sdvo_device_mapping(dev_priv, bdb->version);
parse_ddi_ports(dev_priv, bdb->version);
out:
if (!vbt) {

40
drivers/gpu/drm/i915/intel_cdclk.c
View File

@ -503,7 +503,7 @@ static void vlv_set_cdclk(struct drm_i915_private *dev_priv,
else
cmd = 0;
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ);
val &= ~DSPFREQGUAR_MASK;
val |= (cmd << DSPFREQGUAR_SHIFT);
@ -513,7 +513,7 @@ static void vlv_set_cdclk(struct drm_i915_private *dev_priv,
50)) {
DRM_ERROR("timed out waiting for CDclk change\n");
}
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
mutex_lock(&dev_priv->sb_lock);
@ -590,7 +590,7 @@ static void chv_set_cdclk(struct drm_i915_private *dev_priv,
*/
cmd = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1;
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ);
val &= ~DSPFREQGUAR_MASK_CHV;
val |= (cmd << DSPFREQGUAR_SHIFT_CHV);
@ -600,7 +600,7 @@ static void chv_set_cdclk(struct drm_i915_private *dev_priv,
50)) {
DRM_ERROR("timed out waiting for CDclk change\n");
}
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
intel_update_cdclk(dev_priv);
@ -656,10 +656,10 @@ static void bdw_set_cdclk(struct drm_i915_private *dev_priv,
"trying to change cdclk frequency with cdclk not enabled\n"))
return;
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
ret = sandybridge_pcode_write(dev_priv,
BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ, 0x0);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
if (ret) {
DRM_ERROR("failed to inform pcode about cdclk change\n");
return;
@ -712,9 +712,9 @@ static void bdw_set_cdclk(struct drm_i915_private *dev_priv,
LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
DRM_ERROR("Switching back to LCPLL failed\n");
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, data);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
I915_WRITE(CDCLK_FREQ, DIV_ROUND_CLOSEST(cdclk, 1000) - 1);
@ -928,12 +928,12 @@ static void skl_set_cdclk(struct drm_i915_private *dev_priv,
WARN_ON((cdclk == 24000) != (vco == 0));
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
ret = skl_pcode_request(dev_priv, SKL_PCODE_CDCLK_CONTROL,
SKL_CDCLK_PREPARE_FOR_CHANGE,
SKL_CDCLK_READY_FOR_CHANGE,
SKL_CDCLK_READY_FOR_CHANGE, 3);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
if (ret) {
DRM_ERROR("Failed to inform PCU about cdclk change (%d)\n",
ret);
@ -975,9 +975,9 @@ static void skl_set_cdclk(struct drm_i915_private *dev_priv,
POSTING_READ(CDCLK_CTL);
/* inform PCU of the change */
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
sandybridge_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL, pcu_ack);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
intel_update_cdclk(dev_priv);
}
@ -1268,10 +1268,10 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
}
/* Inform power controller of upcoming frequency change */
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ,
0x80000000);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
if (ret) {
DRM_ERROR("PCode CDCLK freq change notify failed (err %d, freq %d)\n",
@ -1300,10 +1300,10 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
val |= BXT_CDCLK_SSA_PRECHARGE_ENABLE;
I915_WRITE(CDCLK_CTL, val);
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ,
DIV_ROUND_UP(cdclk, 25000));
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
if (ret) {
DRM_ERROR("PCode CDCLK freq set failed, (err %d, freq %d)\n",
@ -1518,12 +1518,12 @@ static void cnl_set_cdclk(struct drm_i915_private *dev_priv,
u32 val, divider, pcu_ack;
int ret;
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
ret = skl_pcode_request(dev_priv, SKL_PCODE_CDCLK_CONTROL,
SKL_CDCLK_PREPARE_FOR_CHANGE,
SKL_CDCLK_READY_FOR_CHANGE,
SKL_CDCLK_READY_FOR_CHANGE, 3);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
if (ret) {
DRM_ERROR("Failed to inform PCU about cdclk change (%d)\n",
ret);
@ -1575,9 +1575,9 @@ static void cnl_set_cdclk(struct drm_i915_private *dev_priv,
I915_WRITE(CDCLK_CTL, val);
/* inform PCU of the change */
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
sandybridge_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL, pcu_ack);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
intel_update_cdclk(dev_priv);
}

16
drivers/gpu/drm/i915/intel_color.c
View File

@ -74,7 +74,7 @@
#define I9XX_CSC_COEFF_1_0 \
((7 << 12) | I9XX_CSC_COEFF_FP(CTM_COEFF_1_0, 8))
static bool crtc_state_is_legacy(struct drm_crtc_state *state)
static bool crtc_state_is_legacy_gamma(struct drm_crtc_state *state)
{
return !state->degamma_lut &&
!state->ctm &&
@ -288,7 +288,7 @@ static void cherryview_load_csc_matrix(struct drm_crtc_state *state)
}
mode = (state->ctm ? CGM_PIPE_MODE_CSC : 0);
if (!crtc_state_is_legacy(state)) {
if (!crtc_state_is_legacy_gamma(state)) {
mode |= (state->degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) |
(state->gamma_lut ? CGM_PIPE_MODE_GAMMA : 0);
}
@ -469,7 +469,7 @@ static void broadwell_load_luts(struct drm_crtc_state *state)
struct intel_crtc_state *intel_state = to_intel_crtc_state(state);
enum pipe pipe = to_intel_crtc(state->crtc)->pipe;
if (crtc_state_is_legacy(state)) {
if (crtc_state_is_legacy_gamma(state)) {
haswell_load_luts(state);
return;
}
@ -529,7 +529,7 @@ static void glk_load_luts(struct drm_crtc_state *state)
glk_load_degamma_lut(state);
if (crtc_state_is_legacy(state)) {
if (crtc_state_is_legacy_gamma(state)) {
haswell_load_luts(state);
return;
}
@ -551,7 +551,7 @@ static void cherryview_load_luts(struct drm_crtc_state *state)
uint32_t i, lut_size;
uint32_t word0, word1;
if (crtc_state_is_legacy(state)) {
if (crtc_state_is_legacy_gamma(state)) {
/* Turn off degamma/gamma on CGM block. */
I915_WRITE(CGM_PIPE_MODE(pipe),
(state->ctm ? CGM_PIPE_MODE_CSC : 0));
@ -632,12 +632,10 @@ int intel_color_check(struct drm_crtc *crtc,
return 0;
/*
* We also allow no degamma lut and a gamma lut at the legacy
* We also allow no degamma lut/ctm and a gamma lut at the legacy
* size (256 entries).
*/
if (!crtc_state->degamma_lut &&
crtc_state->gamma_lut &&
crtc_state->gamma_lut->length == LEGACY_LUT_LENGTH)
if (crtc_state_is_legacy_gamma(crtc_state))
return 0;
return -EINVAL;

86
drivers/gpu/drm/i915/intel_crt.c
View File

@ -213,6 +213,19 @@ static void pch_post_disable_crt(struct intel_encoder *encoder,
intel_disable_crt(encoder, old_crtc_state, old_conn_state);
}
static void hsw_disable_crt(struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
const struct drm_connector_state *old_conn_state)
{
struct drm_crtc *crtc = old_crtc_state->base.crtc;
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
WARN_ON(!intel_crtc->config->has_pch_encoder);
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
}
static void hsw_post_disable_crt(struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
const struct drm_connector_state *old_conn_state)
@ -225,6 +238,58 @@ static void hsw_post_disable_crt(struct intel_encoder *encoder,
lpt_disable_iclkip(dev_priv);
intel_ddi_fdi_post_disable(encoder, old_crtc_state, old_conn_state);
WARN_ON(!old_crtc_state->has_pch_encoder);
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
}
static void hsw_pre_pll_enable_crt(struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config,
const struct drm_connector_state *conn_state)
{
struct drm_crtc *crtc = pipe_config->base.crtc;
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
WARN_ON(!intel_crtc->config->has_pch_encoder);
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
}
static void hsw_pre_enable_crt(struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config,
const struct drm_connector_state *conn_state)
{
struct drm_crtc *crtc = pipe_config->base.crtc;
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
WARN_ON(!intel_crtc->config->has_pch_encoder);
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
dev_priv->display.fdi_link_train(intel_crtc, pipe_config);
}
static void hsw_enable_crt(struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config,
const struct drm_connector_state *conn_state)
{
struct drm_crtc *crtc = pipe_config->base.crtc;
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
WARN_ON(!intel_crtc->config->has_pch_encoder);
intel_crt_set_dpms(encoder, pipe_config, DRM_MODE_DPMS_ON);
intel_wait_for_vblank(dev_priv, pipe);
intel_wait_for_vblank(dev_priv, pipe);
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
}
static void intel_enable_crt(struct intel_encoder *encoder,
@ -890,26 +955,31 @@ void intel_crt_init(struct drm_i915_private *dev_priv)
crt->base.power_domain = POWER_DOMAIN_PORT_CRT;
crt->base.compute_config = intel_crt_compute_config;
if (HAS_PCH_SPLIT(dev_priv)) {
crt->base.disable = pch_disable_crt;
crt->base.post_disable = pch_post_disable_crt;
} else {
crt->base.disable = intel_disable_crt;
}
crt->base.enable = intel_enable_crt;
if (I915_HAS_HOTPLUG(dev_priv) &&
!dmi_check_system(intel_spurious_crt_detect))
crt->base.hpd_pin = HPD_CRT;
crt->base.compute_config = intel_crt_compute_config;
if (HAS_DDI(dev_priv)) {
crt->base.port = PORT_E;
crt->base.get_config = hsw_crt_get_config;
crt->base.get_hw_state = intel_ddi_get_hw_state;
crt->base.pre_pll_enable = hsw_pre_pll_enable_crt;
crt->base.pre_enable = hsw_pre_enable_crt;
crt->base.enable = hsw_enable_crt;
crt->base.disable = hsw_disable_crt;
crt->base.post_disable = hsw_post_disable_crt;
} else {
if (HAS_PCH_SPLIT(dev_priv)) {
crt->base.disable = pch_disable_crt;
crt->base.post_disable = pch_post_disable_crt;
} else {
crt->base.disable = intel_disable_crt;
}
crt->base.port = PORT_NONE;
crt->base.get_config = intel_crt_get_config;
crt->base.get_hw_state = intel_crt_get_hw_state;
crt->base.enable = intel_enable_crt;
}
intel_connector->get_hw_state = intel_connector_get_hw_state;

2
drivers/gpu/drm/i915/intel_csr.c
View File

@ -216,7 +216,7 @@ static void gen9_set_dc_state_debugmask(struct drm_i915_private *dev_priv)
mask = DC_STATE_DEBUG_MASK_MEMORY_UP;
if (IS_BROXTON(dev_priv))
if (IS_GEN9_LP(dev_priv))
mask |= DC_STATE_DEBUG_MASK_CORES;
/* The below bit doesn't need to be cleared ever afterwards */

44
drivers/gpu/drm/i915/intel_ddi.c
View File

@ -602,8 +602,10 @@ cnl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries)
} else if (voltage == VOLTAGE_INFO_1_05V) {
*n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_1_05V);
return cnl_ddi_translations_hdmi_1_05V;
} else
} else {
*n_entries = 1; /* shut up gcc */
MISSING_CASE(voltage);
}
return NULL;
}
@ -621,8 +623,10 @@ cnl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries)
} else if (voltage == VOLTAGE_INFO_1_05V) {
*n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_1_05V);
return cnl_ddi_translations_dp_1_05V;
} else
} else {
*n_entries = 1; /* shut up gcc */
MISSING_CASE(voltage);
}
return NULL;
}
@ -641,8 +645,10 @@ cnl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
} else if (voltage == VOLTAGE_INFO_1_05V) {
*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_1_05V);
return cnl_ddi_translations_edp_1_05V;
} else
} else {
*n_entries = 1; /* shut up gcc */
MISSING_CASE(voltage);
}
return NULL;
} else {
return cnl_get_buf_trans_dp(dev_priv, n_entries);
@ -1214,6 +1220,9 @@ static int cnl_calc_wrpll_link(struct drm_i915_private *dev_priv,
dco_freq += (((cfgcr0 & DPLL_CFGCR0_DCO_FRACTION_MASK) >>
DPLL_CFGCR0_DCO_FRACTION_SHIFT) * ref_clock) / 0x8000;
if (WARN_ON(p0 == 0 || p1 == 0 || p2 == 0))
return 0;
return dco_freq / (p0 * p1 * p2 * 5);
}
@ -1713,7 +1722,8 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
out:
if (ret && IS_GEN9_LP(dev_priv)) {
tmp = I915_READ(BXT_PHY_CTL(port));
if ((tmp & (BXT_PHY_LANE_POWERDOWN_ACK |
if ((tmp & (BXT_PHY_CMNLANE_POWERDOWN_ACK |
BXT_PHY_LANE_POWERDOWN_ACK |
BXT_PHY_LANE_ENABLED)) != BXT_PHY_LANE_ENABLED)
DRM_ERROR("Port %c enabled but PHY powered down? "
"(PHY_CTL %08x)\n", port_name(port), tmp);
@ -2161,7 +2171,8 @@ static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder,
intel_prepare_dp_ddi_buffers(encoder);
intel_ddi_init_dp_buf_reg(encoder);
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
if (!link_mst)
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
intel_dp_start_link_train(intel_dp);
if (port != PORT_A || INTEL_GEN(dev_priv) >= 9)
intel_dp_stop_link_train(intel_dp);
@ -2205,8 +2216,16 @@ static void intel_ddi_pre_enable(struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config,
const struct drm_connector_state *conn_state)
{
struct drm_crtc *crtc = pipe_config->base.crtc;
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
int type = encoder->type;
WARN_ON(intel_crtc->config->has_pch_encoder);
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP) {
intel_ddi_pre_enable_dp(encoder,
pipe_config->port_clock,
@ -2235,12 +2254,21 @@ static void intel_ddi_post_disable(struct intel_encoder *intel_encoder,
uint32_t val;
bool wait = false;
/* old_crtc_state and old_conn_state are NULL when called from DP_MST */
if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP) {
/*
* old_crtc_state and old_conn_state are NULL when called from
* DP_MST. The main connector associated with this port is never
* bound to a crtc for MST.
*/
bool is_mst = !old_crtc_state;
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
/*
* Power down sink before disabling the port, otherwise we end
* up getting interrupts from the sink on detecting link loss.
*/
if (!is_mst)
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
}
val = I915_READ(DDI_BUF_CTL(port));

209
drivers/gpu/drm/i915/intel_display.c
View File

@ -1539,7 +1539,7 @@ static void chv_enable_pll(struct intel_crtc *crtc,
* DPLLCMD is AWOL. Use chicken bits to propagate
* the value from DPLLBMD to either pipe B or C.
*/
I915_WRITE(CBR4_VLV, pipe == PIPE_B ? CBR_DPLLBMD_PIPE_B : CBR_DPLLBMD_PIPE_C);
I915_WRITE(CBR4_VLV, CBR_DPLLBMD_PIPE(pipe));
I915_WRITE(DPLL_MD(PIPE_B), pipe_config->dpll_hw_state.dpll_md);
I915_WRITE(CBR4_VLV, 0);
dev_priv->chv_dpll_md[pipe] = pipe_config->dpll_hw_state.dpll_md;
@ -1568,11 +1568,12 @@ static int intel_num_dvo_pipes(struct drm_i915_private *dev_priv)
return count;
}
static void i9xx_enable_pll(struct intel_crtc *crtc)
static void i9xx_enable_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
i915_reg_t reg = DPLL(crtc->pipe);
u32 dpll = crtc->config->dpll_hw_state.dpll;
u32 dpll = crtc_state->dpll_hw_state.dpll;
int i;
assert_pipe_disabled(dev_priv, crtc->pipe);
@ -1609,7 +1610,7 @@ static void i9xx_enable_pll(struct intel_crtc *crtc)
if (INTEL_GEN(dev_priv) >= 4) {
I915_WRITE(DPLL_MD(crtc->pipe),
crtc->config->dpll_hw_state.dpll_md);
crtc_state->dpll_hw_state.dpll_md);
} else {
/* The pixel multiplier can only be updated once the
* DPLL is enabled and the clocks are stable.
@ -1627,15 +1628,6 @@ static void i9xx_enable_pll(struct intel_crtc *crtc)
}
}
/**
* i9xx_disable_pll - disable a PLL
* @dev_priv: i915 private structure
* @pipe: pipe PLL to disable
*
* Disable the PLL for @pipe, making sure the pipe is off first.
*
* Note! This is for pre-ILK only.
*/
static void i9xx_disable_pll(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
@ -2219,8 +2211,7 @@ intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb, unsigned int rotation)
* something and try to run the system in a "less than optimal"
* mode that matches the user configuration.
*/
if (i915_vma_get_fence(vma) == 0)
i915_vma_pin_fence(vma);
i915_vma_pin_fence(vma);
}
i915_vma_get(vma);
@ -4955,10 +4946,10 @@ void hsw_enable_ips(struct intel_crtc *crtc)
assert_plane_enabled(dev_priv, crtc->plane);
if (IS_BROADWELL(dev_priv)) {
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL,
IPS_ENABLE | IPS_PCODE_CONTROL));
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
/* Quoting Art Runyan: "its not safe to expect any particular
* value in IPS_CTL bit 31 after enabling IPS through the
* mailbox." Moreover, the mailbox may return a bogus state,
@ -4988,9 +4979,9 @@ void hsw_disable_ips(struct intel_crtc *crtc)
assert_plane_enabled(dev_priv, crtc->plane);
if (IS_BROADWELL(dev_priv)) {
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0));
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
/* wait for pcode to finish disabling IPS, which may take up to 42ms */
if (intel_wait_for_register(dev_priv,
IPS_CTL, IPS_ENABLE, 0,
@ -5459,6 +5450,20 @@ static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
return HAS_IPS(to_i915(crtc->base.dev)) && crtc->pipe == PIPE_A;
}
static void glk_pipe_scaler_clock_gating_wa(struct drm_i915_private *dev_priv,
enum pipe pipe, bool apply)
{
u32 val = I915_READ(CLKGATE_DIS_PSL(pipe));
u32 mask = DPF_GATING_DIS | DPF_RAM_GATING_DIS | DPFR_GATING_DIS;
if (apply)
val |= mask;
else
val &= ~mask;
I915_WRITE(CLKGATE_DIS_PSL(pipe), val);
}
static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
struct drm_atomic_state *old_state)
{
@ -5469,13 +5474,11 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
struct intel_atomic_state *old_intel_state =
to_intel_atomic_state(old_state);
bool psl_clkgate_wa;
if (WARN_ON(intel_crtc->active))
return;
if (intel_crtc->config->has_pch_encoder)
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
intel_encoders_pre_pll_enable(crtc, pipe_config, old_state);
if (intel_crtc->config->shared_dpll)
@ -5509,19 +5512,17 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
intel_crtc->active = true;
if (intel_crtc->config->has_pch_encoder)
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
else
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
intel_encoders_pre_enable(crtc, pipe_config, old_state);
if (intel_crtc->config->has_pch_encoder)
dev_priv->display.fdi_link_train(intel_crtc, pipe_config);
if (!transcoder_is_dsi(cpu_transcoder))
intel_ddi_enable_pipe_clock(pipe_config);
/* Display WA #1180: WaDisableScalarClockGating: glk, cnl */
psl_clkgate_wa = (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) &&
intel_crtc->config->pch_pfit.enabled;
if (psl_clkgate_wa)
glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, true);
if (INTEL_GEN(dev_priv) >= 9)
skylake_pfit_enable(intel_crtc);
else
@ -5555,11 +5556,9 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
intel_encoders_enable(crtc, pipe_config, old_state);
if (intel_crtc->config->has_pch_encoder) {
if (psl_clkgate_wa) {
intel_wait_for_vblank(dev_priv, pipe);
intel_wait_for_vblank(dev_priv, pipe);
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false);
}
/* If we change the relative order between pipe/planes enabling, we need
@ -5655,9 +5654,6 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
if (intel_crtc->config->has_pch_encoder)
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
intel_encoders_disable(crtc, old_crtc_state, old_state);
drm_crtc_vblank_off(crtc);
@ -5682,9 +5678,6 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
intel_ddi_disable_pipe_clock(intel_crtc->config);
intel_encoders_post_disable(crtc, old_crtc_state, old_state);
if (old_crtc_state->has_pch_encoder)
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
}
static void i9xx_pfit_enable(struct intel_crtc *crtc)
@ -5894,7 +5887,7 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
intel_encoders_pre_enable(crtc, pipe_config, old_state);
i9xx_enable_pll(intel_crtc);
i9xx_enable_pll(intel_crtc, pipe_config);
i9xx_pfit_enable(intel_crtc);
@ -8846,11 +8839,11 @@ static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv)
static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val)
{
if (IS_HASWELL(dev_priv)) {
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP,
val))
DRM_DEBUG_KMS("Failed to write to D_COMP\n");
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
} else {
I915_WRITE(D_COMP_BDW, val);
POSTING_READ(D_COMP_BDW);
@ -10245,58 +10238,44 @@ static void ironlake_pch_clock_get(struct intel_crtc *crtc,
&pipe_config->fdi_m_n);
}
/** Returns the currently programmed mode of the given pipe. */
struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
struct drm_crtc *crtc)
/* Returns the currently programmed mode of the given encoder. */
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_crtc_state *crtc_state;
struct drm_display_mode *mode;
struct intel_crtc_state *pipe_config;
int htot = I915_READ(HTOTAL(cpu_transcoder));
int hsync = I915_READ(HSYNC(cpu_transcoder));
int vtot = I915_READ(VTOTAL(cpu_transcoder));
int vsync = I915_READ(VSYNC(cpu_transcoder));
enum pipe pipe = intel_crtc->pipe;
struct intel_crtc *crtc;
enum pipe pipe;
if (!encoder->get_hw_state(encoder, &pipe))
return NULL;
crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
mode = kzalloc(sizeof(*mode), GFP_KERNEL);
if (!mode)
return NULL;
pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
if (!pipe_config) {
crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL);
if (!crtc_state) {
kfree(mode);
return NULL;
}
/*
* Construct a pipe_config sufficient for getting the clock info
* back out of crtc_clock_get.
*
* Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
* to use a real value here instead.
*/
pipe_config->cpu_transcoder = (enum transcoder) pipe;
pipe_config->pixel_multiplier = 1;
pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(pipe));
pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(pipe));
pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(pipe));
i9xx_crtc_clock_get(intel_crtc, pipe_config);
crtc_state->base.crtc = &crtc->base;
mode->clock = pipe_config->port_clock / pipe_config->pixel_multiplier;
mode->hdisplay = (htot & 0xffff) + 1;
mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
mode->hsync_start = (hsync & 0xffff) + 1;
mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
mode->vdisplay = (vtot & 0xffff) + 1;
mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
mode->vsync_start = (vsync & 0xffff) + 1;
mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
if (!dev_priv->display.get_pipe_config(crtc, crtc_state)) {
kfree(crtc_state);
kfree(mode);
return NULL;
}
drm_mode_set_name(mode);
encoder->get_config(encoder, crtc_state);
kfree(pipe_config);
intel_mode_from_pipe_config(mode, crtc_state);
kfree(crtc_state);
return mode;
}
@ -11336,6 +11315,18 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1);
PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1);
PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2);
PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr0);
PIPE_CONF_CHECK_X(dpll_hw_state.ebb0);
PIPE_CONF_CHECK_X(dpll_hw_state.ebb4);
PIPE_CONF_CHECK_X(dpll_hw_state.pll0);
PIPE_CONF_CHECK_X(dpll_hw_state.pll1);
PIPE_CONF_CHECK_X(dpll_hw_state.pll2);
PIPE_CONF_CHECK_X(dpll_hw_state.pll3);
PIPE_CONF_CHECK_X(dpll_hw_state.pll6);
PIPE_CONF_CHECK_X(dpll_hw_state.pll8);
PIPE_CONF_CHECK_X(dpll_hw_state.pll9);
PIPE_CONF_CHECK_X(dpll_hw_state.pll10);
PIPE_CONF_CHECK_X(dpll_hw_state.pcsdw12);
PIPE_CONF_CHECK_X(dsi_pll.ctrl);
PIPE_CONF_CHECK_X(dsi_pll.div);
@ -12220,7 +12211,10 @@ static void skl_update_crtcs(struct drm_atomic_state *state)
if (updated & cmask || !cstate->base.active)
continue;
if (skl_ddb_allocation_overlaps(entries, &cstate->wm.skl.ddb, i))
if (skl_ddb_allocation_overlaps(dev_priv,
entries,
&cstate->wm.skl.ddb,
i))
continue;
updated |= cmask;
@ -12515,21 +12509,10 @@ static int intel_atomic_commit(struct drm_device *dev,
struct drm_i915_private *dev_priv = to_i915(dev);
int ret = 0;
ret = drm_atomic_helper_setup_commit(state, nonblock);
if (ret)
return ret;
drm_atomic_state_get(state);
i915_sw_fence_init(&intel_state->commit_ready,
intel_atomic_commit_ready);
ret = intel_atomic_prepare_commit(dev, state);
if (ret) {
DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret);
i915_sw_fence_commit(&intel_state->commit_ready);
return ret;
}
/*
* The intel_legacy_cursor_update() fast path takes care
* of avoiding the vblank waits for simple cursor
@ -12538,19 +12521,37 @@ static int intel_atomic_commit(struct drm_device *dev,
* updates happen during the correct frames. Gen9+ have
* double buffered watermarks and so shouldn't need this.
*
* Do this after drm_atomic_helper_setup_commit() and
* intel_atomic_prepare_commit() because we still want
* to skip the flip and fb cleanup waits. Although that
* does risk yanking the mapping from under the display
* engine.
* Unset state->legacy_cursor_update before the call to
* drm_atomic_helper_setup_commit() because otherwise
* drm_atomic_helper_wait_for_flip_done() is a noop and
* we get FIFO underruns because we didn't wait
* for vblank.
*
* FIXME doing watermarks and fb cleanup from a vblank worker
* (assuming we had any) would solve these problems.
*/
if (INTEL_GEN(dev_priv) < 9)
state->legacy_cursor_update = false;
if (INTEL_GEN(dev_priv) < 9 && state->legacy_cursor_update) {
struct intel_crtc_state *new_crtc_state;
struct intel_crtc *crtc;
int i;
for_each_new_intel_crtc_in_state(intel_state, crtc, new_crtc_state, i)
if (new_crtc_state->wm.need_postvbl_update ||
new_crtc_state->update_wm_post)
state->legacy_cursor_update = false;
}
ret = intel_atomic_prepare_commit(dev, state);
if (ret) {
DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret);
i915_sw_fence_commit(&intel_state->commit_ready);
return ret;
}
ret = drm_atomic_helper_setup_commit(state, nonblock);
if (!ret)
ret = drm_atomic_helper_swap_state(state, true);
ret = drm_atomic_helper_swap_state(state, true);
if (ret) {
i915_sw_fence_commit(&intel_state->commit_ready);
@ -14748,10 +14749,10 @@ static struct intel_connector *intel_encoder_find_connector(struct intel_encoder
}
static bool has_pch_trancoder(struct drm_i915_private *dev_priv,
enum transcoder pch_transcoder)
enum pipe pch_transcoder)
{
return HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv) ||
(HAS_PCH_LPT_H(dev_priv) && pch_transcoder == TRANSCODER_A);
(HAS_PCH_LPT_H(dev_priv) && pch_transcoder == PIPE_A);
}
static void intel_sanitize_crtc(struct intel_crtc *crtc,
@ -14834,7 +14835,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
* PCH transcoders B and C would prevent enabling the south
* error interrupt (see cpt_can_enable_serr_int()).
*/
if (has_pch_trancoder(dev_priv, (enum transcoder)crtc->pipe))
if (has_pch_trancoder(dev_priv, crtc->pipe))
crtc->pch_fifo_underrun_disabled = true;
}
}

49
drivers/gpu/drm/i915/intel_dp.c
View File

@ -137,32 +137,20 @@ static void vlv_steal_power_sequencer(struct drm_device *dev,
enum pipe pipe);
static void intel_dp_unset_edid(struct intel_dp *intel_dp);
static int intel_dp_num_rates(u8 link_bw_code)
{
switch (link_bw_code) {
default:
WARN(1, "invalid max DP link bw val %x, using 1.62Gbps\n",
link_bw_code);
case DP_LINK_BW_1_62:
return 1;
case DP_LINK_BW_2_7:
return 2;
case DP_LINK_BW_5_4:
return 3;
}
}
/* update sink rates from dpcd */
static void intel_dp_set_sink_rates(struct intel_dp *intel_dp)
{
int i, num_rates;
int i, max_rate;
num_rates = intel_dp_num_rates(intel_dp->dpcd[DP_MAX_LINK_RATE]);
max_rate = drm_dp_bw_code_to_link_rate(intel_dp->dpcd[DP_MAX_LINK_RATE]);
for (i = 0; i < num_rates; i++)
for (i = 0; i < ARRAY_SIZE(default_rates); i++) {
if (default_rates[i] > max_rate)
break;
intel_dp->sink_rates[i] = default_rates[i];
}
intel_dp->num_sink_rates = num_rates;
intel_dp->num_sink_rates = i;
}
/* Theoretical max between source and sink */
@ -254,15 +242,15 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
} else if (IS_GEN9_BC(dev_priv)) {
source_rates = skl_rates;
size = ARRAY_SIZE(skl_rates);
} else {
} else if ((IS_HASWELL(dev_priv) && !IS_HSW_ULX(dev_priv)) ||
IS_BROADWELL(dev_priv)) {
source_rates = default_rates;
size = ARRAY_SIZE(default_rates);
} else {
source_rates = default_rates;
size = ARRAY_SIZE(default_rates) - 1;
}
/* This depends on the fact that 5.4 is last value in the array */
if (!intel_dp_source_supports_hbr2(intel_dp))
size--;
intel_dp->source_rates = source_rates;
intel_dp->num_source_rates = size;
}
@ -1482,14 +1470,9 @@ intel_dp_aux_init(struct intel_dp *intel_dp)
bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp)
{
struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
int max_rate = intel_dp->source_rates[intel_dp->num_source_rates - 1];
if ((IS_HASWELL(dev_priv) && !IS_HSW_ULX(dev_priv)) ||
IS_BROADWELL(dev_priv) || (INTEL_GEN(dev_priv) >= 9))
return true;
else
return false;
return max_rate >= 540000;
}
static void
@ -2308,8 +2291,8 @@ static void edp_panel_off(struct intel_dp *intel_dp)
I915_WRITE(pp_ctrl_reg, pp);
POSTING_READ(pp_ctrl_reg);
intel_dp->panel_power_off_time = ktime_get_boottime();
wait_panel_off(intel_dp);
intel_dp->panel_power_off_time = ktime_get_boottime();
/* We got a reference when we enabled the VDD. */
intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
@ -5286,7 +5269,7 @@ intel_dp_init_panel_power_sequencer(struct drm_device *dev,
* seems sufficient to avoid this problem.
*/
if (dev_priv->quirks & QUIRK_INCREASE_T12_DELAY) {
vbt.t11_t12 = max_t(u16, vbt.t11_t12, 900 * 10);
vbt.t11_t12 = max_t(u16, vbt.t11_t12, 1300 * 10);
DRM_DEBUG_KMS("Increasing T12 panel delay as per the quirk to %d\n",
vbt.t11_t12);
}

10
drivers/gpu/drm/i915/intel_dp_mst.c
View File

@ -162,14 +162,19 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder,
drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, connector->port);
/*
* Power down mst path before disabling the port, otherwise we end
* up getting interrupts from the sink upon detecting link loss.
*/
drm_dp_send_power_updown_phy(&intel_dp->mst_mgr, connector->port,
false);
intel_dp->active_mst_links--;
intel_mst->connector = NULL;
if (intel_dp->active_mst_links == 0) {
intel_dig_port->base.post_disable(&intel_dig_port->base,
NULL, NULL);
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
}
DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links);
}
@ -196,6 +201,7 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder,
DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links);
drm_dp_send_power_updown_phy(&intel_dp->mst_mgr, connector->port, true);
if (intel_dp->active_mst_links == 0)
intel_dig_port->base.pre_enable(&intel_dig_port->base,
pipe_config, NULL);

20
drivers/gpu/drm/i915/intel_dpio_phy.c
View File

@ -208,12 +208,6 @@ static const struct bxt_ddi_phy_info glk_ddi_phy_info[] = {
},
};
static u32 bxt_phy_port_mask(const struct bxt_ddi_phy_info *phy_info)
{
return (phy_info->dual_channel * BIT(phy_info->channel[DPIO_CH1].port)) |
BIT(phy_info->channel[DPIO_CH0].port);
}
static const struct bxt_ddi_phy_info *
bxt_get_phy_list(struct drm_i915_private *dev_priv, int *count)
{
@ -313,7 +307,6 @@ bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
enum dpio_phy phy)
{
const struct bxt_ddi_phy_info *phy_info;
enum port port;
phy_info = bxt_get_phy_info(dev_priv, phy);
@ -335,19 +328,6 @@ bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
return false;
}
for_each_port_masked(port, bxt_phy_port_mask(phy_info)) {
u32 tmp = I915_READ(BXT_PHY_CTL(port));
if (tmp & BXT_PHY_CMNLANE_POWERDOWN_ACK) {
DRM_DEBUG_DRIVER("DDI PHY %d powered, but common lane "
"for port %c powered down "
"(PHY_CTL %08x)\n",
phy, port_name(port), tmp);
return false;
}
}
return true;
}

22
drivers/gpu/drm/i915/intel_drv.h
View File

@ -1243,7 +1243,7 @@ void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv);
static inline u32 gen6_sanitize_rps_pm_mask(const struct drm_i915_private *i915,
u32 mask)
{
return mask & ~i915->rps.pm_intrmsk_mbz;
return mask & ~i915->gt_pm.rps.pm_intrmsk_mbz;
}
void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
@ -1254,7 +1254,7 @@ static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
* We only use drm_irq_uninstall() at unload and VT switch, so
* this is the only thing we need to check.
*/
return dev_priv->pm.irqs_enabled;
return dev_priv->runtime_pm.irqs_enabled;
}
int intel_get_crtc_scanline(struct intel_crtc *crtc);
@ -1363,8 +1363,9 @@ struct intel_connector *intel_connector_alloc(void);
bool intel_connector_get_hw_state(struct intel_connector *connector);
void intel_connector_attach_encoder(struct intel_connector *connector,
struct intel_encoder *encoder);
struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
struct drm_crtc *crtc);
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder);
enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
struct drm_file *file_priv);
@ -1790,7 +1791,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
static inline void
assert_rpm_device_not_suspended(struct drm_i915_private *dev_priv)
{
WARN_ONCE(dev_priv->pm.suspended,
WARN_ONCE(dev_priv->runtime_pm.suspended,
"Device suspended during HW access\n");
}
@ -1798,7 +1799,7 @@ static inline void
assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
{
assert_rpm_device_not_suspended(dev_priv);
WARN_ONCE(!atomic_read(&dev_priv->pm.wakeref_count),
WARN_ONCE(!atomic_read(&dev_priv->runtime_pm.wakeref_count),
"RPM wakelock ref not held during HW access");
}
@ -1823,7 +1824,7 @@ assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
static inline void
disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
{
atomic_inc(&dev_priv->pm.wakeref_count);
atomic_inc(&dev_priv->runtime_pm.wakeref_count);
}
/**
@ -1840,7 +1841,7 @@ disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
static inline void
enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
{
atomic_dec(&dev_priv->pm.wakeref_count);
atomic_dec(&dev_priv->runtime_pm.wakeref_count);
}
void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
@ -1893,7 +1894,8 @@ int intel_enable_sagv(struct drm_i915_private *dev_priv);
int intel_disable_sagv(struct drm_i915_private *dev_priv);
bool skl_wm_level_equals(const struct skl_wm_level *l1,
const struct skl_wm_level *l2);
bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry **entries,
bool skl_ddb_allocation_overlaps(struct drm_i915_private *dev_priv,
const struct skl_ddb_entry **entries,
const struct skl_ddb_entry *ddb,
int ignore);
bool ilk_disable_lp_wm(struct drm_device *dev);
@ -1902,7 +1904,7 @@ int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc,
struct intel_crtc_state *cstate);
void intel_init_ipc(struct drm_i915_private *dev_priv);
void intel_enable_ipc(struct drm_i915_private *dev_priv);
static inline int intel_enable_rc6(void)
static inline int intel_rc6_enabled(void)
{
return i915_modparams.enable_rc6;
}

7
drivers/gpu/drm/i915/intel_dsi.c
View File

@ -790,14 +790,19 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config,
const struct drm_connector_state *conn_state)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
struct drm_crtc *crtc = pipe_config->base.crtc;
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
enum port port;
u32 val;
bool glk_cold_boot = false;
DRM_DEBUG_KMS("\n");
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
/*
* The BIOS may leave the PLL in a wonky state where it doesn't
* lock. It needs to be fully powered down to fix it.

33
drivers/gpu/drm/i915/intel_dvo.c
View File

@ -379,32 +379,15 @@ static const struct drm_encoder_funcs intel_dvo_enc_funcs = {
* chip being on DVOB/C and having multiple pipes.
*/
static struct drm_display_mode *
intel_dvo_get_current_mode(struct drm_connector *connector)
intel_dvo_get_current_mode(struct intel_encoder *encoder)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
uint32_t dvo_val = I915_READ(intel_dvo->dev.dvo_reg);
struct drm_display_mode *mode = NULL;
struct drm_display_mode *mode;
/* If the DVO port is active, that'll be the LVDS, so we can pull out
* its timings to get how the BIOS set up the panel.
*/
if (dvo_val & DVO_ENABLE) {
struct intel_crtc *crtc;
int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0;
crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
if (crtc) {
mode = intel_crtc_mode_get(dev, &crtc->base);
if (mode) {
mode->type |= DRM_MODE_TYPE_PREFERRED;
if (dvo_val & DVO_HSYNC_ACTIVE_HIGH)
mode->flags |= DRM_MODE_FLAG_PHSYNC;
if (dvo_val & DVO_VSYNC_ACTIVE_HIGH)
mode->flags |= DRM_MODE_FLAG_PVSYNC;
}
}
mode = intel_encoder_current_mode(encoder);
if (mode) {
DRM_DEBUG_KMS("using current (BIOS) mode: ");
drm_mode_debug_printmodeline(mode);
mode->type |= DRM_MODE_TYPE_PREFERRED;
}
return mode;
@ -551,7 +534,7 @@ void intel_dvo_init(struct drm_i915_private *dev_priv)
* mode being output through DVO.
*/
intel_panel_init(&intel_connector->panel,
intel_dvo_get_current_mode(connector),
intel_dvo_get_current_mode(intel_encoder),
NULL, NULL);
intel_dvo->panel_wants_dither = true;
}

240
drivers/gpu/drm/i915/intel_engine_cs.c
View File

@ -22,6 +22,8 @@
*
*/
#include <drm/drm_print.h>
#include "i915_drv.h"
#include "intel_ringbuffer.h"
#include "intel_lrc.h"
@ -39,7 +41,7 @@
#define GEN8_LR_CONTEXT_RENDER_SIZE (20 * PAGE_SIZE)
#define GEN9_LR_CONTEXT_RENDER_SIZE (22 * PAGE_SIZE)
#define GEN10_LR_CONTEXT_RENDER_SIZE (19 * PAGE_SIZE)
#define GEN10_LR_CONTEXT_RENDER_SIZE (18 * PAGE_SIZE)
#define GEN8_LR_CONTEXT_OTHER_SIZE ( 2 * PAGE_SIZE)
@ -613,9 +615,22 @@ int intel_engine_init_common(struct intel_engine_cs *engine)
if (IS_ERR(ring))
return PTR_ERR(ring);
/*
* Similarly the preempt context must always be available so that
* we can interrupt the engine at any time.
*/
if (INTEL_INFO(engine->i915)->has_logical_ring_preemption) {
ring = engine->context_pin(engine,
engine->i915->preempt_context);
if (IS_ERR(ring)) {
ret = PTR_ERR(ring);
goto err_unpin_kernel;
}
}
ret = intel_engine_init_breadcrumbs(engine);
if (ret)
goto err_unpin;
goto err_unpin_preempt;
ret = i915_gem_render_state_init(engine);
if (ret)
@ -634,7 +649,10 @@ err_rs_fini:
i915_gem_render_state_fini(engine);
err_breadcrumbs:
intel_engine_fini_breadcrumbs(engine);
err_unpin:
err_unpin_preempt:
if (INTEL_INFO(engine->i915)->has_logical_ring_preemption)
engine->context_unpin(engine, engine->i915->preempt_context);
err_unpin_kernel:
engine->context_unpin(engine, engine->i915->kernel_context);
return ret;
}
@ -660,6 +678,8 @@ void intel_engine_cleanup_common(struct intel_engine_cs *engine)
intel_engine_cleanup_cmd_parser(engine);
i915_gem_batch_pool_fini(&engine->batch_pool);
if (INTEL_INFO(engine->i915)->has_logical_ring_preemption)
engine->context_unpin(engine, engine->i915->preempt_context);
engine->context_unpin(engine, engine->i915->kernel_context);
}
@ -830,11 +850,6 @@ static int wa_add(struct drm_i915_private *dev_priv,
#define WA_SET_FIELD_MASKED(addr, mask, value) \
WA_REG(addr, mask, _MASKED_FIELD(mask, value))
#define WA_SET_BIT(addr, mask) WA_REG(addr, mask, I915_READ(addr) | (mask))
#define WA_CLR_BIT(addr, mask) WA_REG(addr, mask, I915_READ(addr) & ~(mask))
#define WA_WRITE(addr, val) WA_REG(addr, 0xffffffff, val)
static int wa_ring_whitelist_reg(struct intel_engine_cs *engine,
i915_reg_t reg)
{
@ -845,8 +860,8 @@ static int wa_ring_whitelist_reg(struct intel_engine_cs *engine,
if (WARN_ON(index >= RING_MAX_NONPRIV_SLOTS))
return -EINVAL;
WA_WRITE(RING_FORCE_TO_NONPRIV(engine->mmio_base, index),
i915_mmio_reg_offset(reg));
I915_WRITE(RING_FORCE_TO_NONPRIV(engine->mmio_base, index),
i915_mmio_reg_offset(reg));
wa->hw_whitelist_count[engine->id]++;
return 0;
@ -980,7 +995,11 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
GEN9_PBE_COMPRESSED_HASH_SELECTION);
WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,
GEN9_SAMPLER_HASH_COMPRESSED_READ_ADDR);
WA_SET_BIT(MMCD_MISC_CTRL, MMCD_PCLA | MMCD_HOTSPOT_EN);
I915_WRITE(MMCD_MISC_CTRL,
I915_READ(MMCD_MISC_CTRL) |
MMCD_PCLA |
MMCD_HOTSPOT_EN);
}
/* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl,glk,cfl */
@ -1071,13 +1090,33 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
I915_WRITE(GEN8_L3SQCREG4, (I915_READ(GEN8_L3SQCREG4) |
GEN8_LQSC_FLUSH_COHERENT_LINES));
/*
* Supporting preemption with fine-granularity requires changes in the
* batch buffer programming. Since we can't break old userspace, we
* need to set our default preemption level to safe value. Userspace is
* still able to use more fine-grained preemption levels, since in
* WaEnablePreemptionGranularityControlByUMD we're whitelisting the
* per-ctx register. As such, WaDisable{3D,GPGPU}MidCmdPreemption are
* not real HW workarounds, but merely a way to start using preemption
* while maintaining old contract with userspace.
*/
/* WaDisable3DMidCmdPreemption:skl,bxt,glk,cfl,[cnl] */
WA_CLR_BIT_MASKED(GEN8_CS_CHICKEN1, GEN9_PREEMPT_3D_OBJECT_LEVEL);
/* WaDisableGPGPUMidCmdPreemption:skl,bxt,blk,cfl,[cnl] */
WA_SET_FIELD_MASKED(GEN8_CS_CHICKEN1, GEN9_PREEMPT_GPGPU_LEVEL_MASK,
GEN9_PREEMPT_GPGPU_COMMAND_LEVEL);
/* WaVFEStateAfterPipeControlwithMediaStateClear:skl,bxt,glk,cfl */
ret = wa_ring_whitelist_reg(engine, GEN9_CTX_PREEMPT_REG);
if (ret)
return ret;
/* WaEnablePreemptionGranularityControlByUMD:skl,bxt,kbl,cfl */
ret= wa_ring_whitelist_reg(engine, GEN8_CS_CHICKEN1);
/* WaEnablePreemptionGranularityControlByUMD:skl,bxt,kbl,cfl,[cnl] */
I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1,
_MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL));
ret = wa_ring_whitelist_reg(engine, GEN8_CS_CHICKEN1);
if (ret)
return ret;
@ -1139,14 +1178,6 @@ static int skl_init_workarounds(struct intel_engine_cs *engine)
if (ret)
return ret;
/*
* Actual WA is to disable percontext preemption granularity control
* until D0 which is the default case so this is equivalent to
* !WaDisablePerCtxtPreemptionGranularityControl:skl
*/
I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1,
_MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL));
/* WaEnableGapsTsvCreditFix:skl */
I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) |
GEN9_GAPS_TSV_CREDIT_DISABLE));
@ -1278,7 +1309,16 @@ static int cnl_init_workarounds(struct intel_engine_cs *engine)
/* FtrEnableFastAnisoL1BankingFix: cnl */
WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3, CNL_FAST_ANISO_L1_BANKING_FIX);
/* WaDisable3DMidCmdPreemption:cnl */
WA_CLR_BIT_MASKED(GEN8_CS_CHICKEN1, GEN9_PREEMPT_3D_OBJECT_LEVEL);
/* WaDisableGPGPUMidCmdPreemption:cnl */
WA_SET_FIELD_MASKED(GEN8_CS_CHICKEN1, GEN9_PREEMPT_GPGPU_LEVEL_MASK,
GEN9_PREEMPT_GPGPU_COMMAND_LEVEL);
/* WaEnablePreemptionGranularityControlByUMD:cnl */
I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1,
_MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL));
ret= wa_ring_whitelist_reg(engine, GEN8_CS_CHICKEN1);
if (ret)
return ret;
@ -1578,6 +1618,164 @@ bool intel_engine_can_store_dword(struct intel_engine_cs *engine)
}
}
static void print_request(struct drm_printer *m,
struct drm_i915_gem_request *rq,
const char *prefix)
{
drm_printf(m, "%s%x [%x:%x] prio=%d @ %dms: %s\n", prefix,
rq->global_seqno, rq->ctx->hw_id, rq->fence.seqno,
rq->priotree.priority,
jiffies_to_msecs(jiffies - rq->emitted_jiffies),
rq->timeline->common->name);
}
void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
{
struct intel_breadcrumbs *b = &engine->breadcrumbs;
struct i915_gpu_error *error = &engine->i915->gpu_error;
struct drm_i915_private *dev_priv = engine->i915;
struct drm_i915_gem_request *rq;
struct rb_node *rb;
u64 addr;
drm_printf(m, "%s\n", engine->name);
drm_printf(m, "\tcurrent seqno %x, last %x, hangcheck %x [%d ms], inflight %d\n",
intel_engine_get_seqno(engine),
intel_engine_last_submit(engine),
engine->hangcheck.seqno,
jiffies_to_msecs(jiffies - engine->hangcheck.action_timestamp),
engine->timeline->inflight_seqnos);
drm_printf(m, "\tReset count: %d\n",
i915_reset_engine_count(error, engine));
rcu_read_lock();
drm_printf(m, "\tRequests:\n");
rq = list_first_entry(&engine->timeline->requests,
struct drm_i915_gem_request, link);
if (&rq->link != &engine->timeline->requests)
print_request(m, rq, "\t\tfirst ");
rq = list_last_entry(&engine->timeline->requests,
struct drm_i915_gem_request, link);
if (&rq->link != &engine->timeline->requests)
print_request(m, rq, "\t\tlast ");
rq = i915_gem_find_active_request(engine);
if (rq) {
print_request(m, rq, "\t\tactive ");
drm_printf(m,
"\t\t[head %04x, postfix %04x, tail %04x, batch 0x%08x_%08x]\n",
rq->head, rq->postfix, rq->tail,
rq->batch ? upper_32_bits(rq->batch->node.start) : ~0u,
rq->batch ? lower_32_bits(rq->batch->node.start) : ~0u);
}
drm_printf(m, "\tRING_START: 0x%08x [0x%08x]\n",
I915_READ(RING_START(engine->mmio_base)),
rq ? i915_ggtt_offset(rq->ring->vma) : 0);
drm_printf(m, "\tRING_HEAD: 0x%08x [0x%08x]\n",
I915_READ(RING_HEAD(engine->mmio_base)) & HEAD_ADDR,
rq ? rq->ring->head : 0);
drm_printf(m, "\tRING_TAIL: 0x%08x [0x%08x]\n",
I915_READ(RING_TAIL(engine->mmio_base)) & TAIL_ADDR,
rq ? rq->ring->tail : 0);
drm_printf(m, "\tRING_CTL: 0x%08x [%s]\n",
I915_READ(RING_CTL(engine->mmio_base)),
I915_READ(RING_CTL(engine->mmio_base)) & (RING_WAIT | RING_WAIT_SEMAPHORE) ? "waiting" : "");
rcu_read_unlock();
addr = intel_engine_get_active_head(engine);
drm_printf(m, "\tACTHD: 0x%08x_%08x\n",
upper_32_bits(addr), lower_32_bits(addr));
addr = intel_engine_get_last_batch_head(engine);
drm_printf(m, "\tBBADDR: 0x%08x_%08x\n",
upper_32_bits(addr), lower_32_bits(addr));
if (i915_modparams.enable_execlists) {
const u32 *hws = &engine->status_page.page_addr[I915_HWS_CSB_BUF0_INDEX];
struct intel_engine_execlists * const execlists = &engine->execlists;
u32 ptr, read, write;
unsigned int idx;
drm_printf(m, "\tExeclist status: 0x%08x %08x\n",
I915_READ(RING_EXECLIST_STATUS_LO(engine)),
I915_READ(RING_EXECLIST_STATUS_HI(engine)));
ptr = I915_READ(RING_CONTEXT_STATUS_PTR(engine));
read = GEN8_CSB_READ_PTR(ptr);
write = GEN8_CSB_WRITE_PTR(ptr);
drm_printf(m, "\tExeclist CSB read %d [%d cached], write %d [%d from hws], interrupt posted? %s\n",
read, execlists->csb_head,
write,
intel_read_status_page(engine, intel_hws_csb_write_index(engine->i915)),
yesno(test_bit(ENGINE_IRQ_EXECLIST,
&engine->irq_posted)));
if (read >= GEN8_CSB_ENTRIES)
read = 0;
if (write >= GEN8_CSB_ENTRIES)
write = 0;
if (read > write)
write += GEN8_CSB_ENTRIES;
while (read < write) {
idx = ++read % GEN8_CSB_ENTRIES;
drm_printf(m, "\tExeclist CSB[%d]: 0x%08x [0x%08x in hwsp], context: %d [%d in hwsp]\n",
idx,
I915_READ(RING_CONTEXT_STATUS_BUF_LO(engine, idx)),
hws[idx * 2],
I915_READ(RING_CONTEXT_STATUS_BUF_HI(engine, idx)),
hws[idx * 2 + 1]);
}
rcu_read_lock();
for (idx = 0; idx < execlists_num_ports(execlists); idx++) {
unsigned int count;
rq = port_unpack(&execlists->port[idx], &count);
if (rq) {
drm_printf(m, "\t\tELSP[%d] count=%d, ",
idx, count);
print_request(m, rq, "rq: ");
} else {
drm_printf(m, "\t\tELSP[%d] idle\n",
idx);
}
}
rcu_read_unlock();
spin_lock_irq(&engine->timeline->lock);
for (rb = execlists->first; rb; rb = rb_next(rb)) {
struct i915_priolist *p =
rb_entry(rb, typeof(*p), node);
list_for_each_entry(rq, &p->requests,
priotree.link)
print_request(m, rq, "\t\tQ ");
}
spin_unlock_irq(&engine->timeline->lock);
} else if (INTEL_GEN(dev_priv) > 6) {
drm_printf(m, "\tPP_DIR_BASE: 0x%08x\n",
I915_READ(RING_PP_DIR_BASE(engine)));
drm_printf(m, "\tPP_DIR_BASE_READ: 0x%08x\n",
I915_READ(RING_PP_DIR_BASE_READ(engine)));
drm_printf(m, "\tPP_DIR_DCLV: 0x%08x\n",
I915_READ(RING_PP_DIR_DCLV(engine)));
}
spin_lock_irq(&b->rb_lock);
for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
struct intel_wait *w = rb_entry(rb, typeof(*w), node);
drm_printf(m, "\t%s [%d] waiting for %x\n",
w->tsk->comm, w->tsk->pid, w->seqno);
}
spin_unlock_irq(&b->rb_lock);
drm_printf(m, "\n");
}
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include "selftests/mock_engine.c"
#endif

265
drivers/gpu/drm/i915/intel_guc.c Normal file
View File

@ -0,0 +1,265 @@
/*
* Copyright © 2014-2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#include "intel_guc.h"
#include "i915_drv.h"
static void gen8_guc_raise_irq(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
I915_WRITE(GUC_SEND_INTERRUPT, GUC_SEND_TRIGGER);
}
static inline i915_reg_t guc_send_reg(struct intel_guc *guc, u32 i)
{
GEM_BUG_ON(!guc->send_regs.base);
GEM_BUG_ON(!guc->send_regs.count);
GEM_BUG_ON(i >= guc->send_regs.count);
return _MMIO(guc->send_regs.base + 4 * i);
}
void intel_guc_init_send_regs(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
enum forcewake_domains fw_domains = 0;
unsigned int i;
guc->send_regs.base = i915_mmio_reg_offset(SOFT_SCRATCH(0));
guc->send_regs.count = SOFT_SCRATCH_COUNT - 1;
for (i = 0; i < guc->send_regs.count; i++) {
fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
guc_send_reg(guc, i),
FW_REG_READ | FW_REG_WRITE);
}
guc->send_regs.fw_domains = fw_domains;
}
void intel_guc_init_early(struct intel_guc *guc)
{
intel_guc_ct_init_early(&guc->ct);
mutex_init(&guc->send_mutex);
guc->send = intel_guc_send_nop;
guc->notify = gen8_guc_raise_irq;
}
int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len)
{
WARN(1, "Unexpected send: action=%#x\n", *action);
return -ENODEV;
}
/*
* This function implements the MMIO based host to GuC interface.
*/
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
u32 status;
int i;
int ret;
GEM_BUG_ON(!len);
GEM_BUG_ON(len > guc->send_regs.count);
/* If CT is available, we expect to use MMIO only during init/fini */
GEM_BUG_ON(HAS_GUC_CT(dev_priv) &&
*action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
*action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
mutex_lock(&guc->send_mutex);
intel_uncore_forcewake_get(dev_priv, guc->send_regs.fw_domains);
for (i = 0; i < len; i++)
I915_WRITE(guc_send_reg(guc, i), action[i]);
POSTING_READ(guc_send_reg(guc, i - 1));
intel_guc_notify(guc);
/*
* No GuC command should ever take longer than 10ms.
* Fast commands should still complete in 10us.
*/
ret = __intel_wait_for_register_fw(dev_priv,
guc_send_reg(guc, 0),
INTEL_GUC_RECV_MASK,
INTEL_GUC_RECV_MASK,
10, 10, &status);
if (status != INTEL_GUC_STATUS_SUCCESS) {
/*
* Either the GuC explicitly returned an error (which
* we convert to -EIO here) or no response at all was
* received within the timeout limit (-ETIMEDOUT)
*/
if (ret != -ETIMEDOUT)
ret = -EIO;
DRM_WARN("INTEL_GUC_SEND: Action 0x%X failed;"
" ret=%d status=0x%08X response=0x%08X\n",
action[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
}
intel_uncore_forcewake_put(dev_priv, guc->send_regs.fw_domains);
mutex_unlock(&guc->send_mutex);
return ret;
}
int intel_guc_sample_forcewake(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
u32 action[2];
action[0] = INTEL_GUC_ACTION_SAMPLE_FORCEWAKE;
/* WaRsDisableCoarsePowerGating:skl,bxt */
if (!intel_rc6_enabled() ||
NEEDS_WaRsDisableCoarsePowerGating(dev_priv))
action[1] = 0;
else
/* bit 0 and 1 are for Render and Media domain separately */
action[1] = GUC_FORCEWAKE_RENDER | GUC_FORCEWAKE_MEDIA;
return intel_guc_send(guc, action, ARRAY_SIZE(action));
}
/**
* intel_guc_auth_huc() - Send action to GuC to authenticate HuC ucode
* @guc: intel_guc structure
* @rsa_offset: rsa offset w.r.t ggtt base of huc vma
*
* Triggers a HuC firmware authentication request to the GuC via intel_guc_send
* INTEL_GUC_ACTION_AUTHENTICATE_HUC interface. This function is invoked by
* intel_huc_auth().
*
* Return: non-zero code on error
*/
int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset)
{
u32 action[] = {
INTEL_GUC_ACTION_AUTHENTICATE_HUC,
rsa_offset
};
return intel_guc_send(guc, action, ARRAY_SIZE(action));
}
/**
* intel_guc_suspend() - notify GuC entering suspend state
* @dev_priv: i915 device private
*/
int intel_guc_suspend(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
struct i915_gem_context *ctx;
u32 data[3];
if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return 0;
gen9_disable_guc_interrupts(dev_priv);
ctx = dev_priv->kernel_context;
data[0] = INTEL_GUC_ACTION_ENTER_S_STATE;
/* any value greater than GUC_POWER_D0 */
data[1] = GUC_POWER_D1;
/* first page is shared data with GuC */
data[2] = guc_ggtt_offset(ctx->engine[RCS].state) +
LRC_GUCSHR_PN * PAGE_SIZE;
return intel_guc_send(guc, data, ARRAY_SIZE(data));
}
/**
* intel_guc_resume() - notify GuC resuming from suspend state
* @dev_priv: i915 device private
*/
int intel_guc_resume(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
struct i915_gem_context *ctx;
u32 data[3];
if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return 0;
if (i915_modparams.guc_log_level >= 0)
gen9_enable_guc_interrupts(dev_priv);
ctx = dev_priv->kernel_context;
data[0] = INTEL_GUC_ACTION_EXIT_S_STATE;
data[1] = GUC_POWER_D0;
/* first page is shared data with GuC */
data[2] = guc_ggtt_offset(ctx->engine[RCS].state) +
LRC_GUCSHR_PN * PAGE_SIZE;
return intel_guc_send(guc, data, ARRAY_SIZE(data));
}
/**
* intel_guc_allocate_vma() - Allocate a GGTT VMA for GuC usage
* @guc: the guc
* @size: size of area to allocate (both virtual space and memory)
*
* This is a wrapper to create an object for use with the GuC. In order to
* use it inside the GuC, an object needs to be pinned lifetime, so we allocate
* both some backing storage and a range inside the Global GTT. We must pin
* it in the GGTT somewhere other than than [0, GUC_WOPCM_TOP) because that
* range is reserved inside GuC.
*
* Return: A i915_vma if successful, otherwise an ERR_PTR.
*/
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct drm_i915_gem_object *obj;
struct i915_vma *vma;
int ret;
obj = i915_gem_object_create(dev_priv, size);
if (IS_ERR(obj))
return ERR_CAST(obj);
vma = i915_vma_instance(obj, &dev_priv->ggtt.base, NULL);
if (IS_ERR(vma))
goto err;
ret = i915_vma_pin(vma, 0, PAGE_SIZE,
PIN_GLOBAL | PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
if (ret) {
vma = ERR_PTR(ret);
goto err;
}
return vma;
err:
i915_gem_object_put(obj);
return vma;
}

110
drivers/gpu/drm/i915/intel_guc.h Normal file
View File

@ -0,0 +1,110 @@
/*
* Copyright © 2014-2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef _INTEL_GUC_H_
#define _INTEL_GUC_H_
#include "intel_uncore.h"
#include "intel_guc_fwif.h"
#include "intel_guc_ct.h"
#include "intel_guc_log.h"
#include "intel_uc_fw.h"
#include "i915_guc_reg.h"
#include "i915_vma.h"
struct intel_guc {
struct intel_uc_fw fw;
struct intel_guc_log log;
struct intel_guc_ct ct;
/* Log snapshot if GuC errors during load */
struct drm_i915_gem_object *load_err_log;
/* intel_guc_recv interrupt related state */
bool interrupts_enabled;
struct i915_vma *ads_vma;
struct i915_vma *stage_desc_pool;
void *stage_desc_pool_vaddr;
struct ida stage_ids;
struct i915_guc_client *execbuf_client;
DECLARE_BITMAP(doorbell_bitmap, GUC_NUM_DOORBELLS);
/* Cyclic counter mod pagesize */
u32 db_cacheline;
/* GuC's FW specific registers used in MMIO send */
struct {
u32 base;
unsigned int count;
enum forcewake_domains fw_domains;
} send_regs;
/* To serialize the intel_guc_send actions */
struct mutex send_mutex;
/* GuC's FW specific send function */
int (*send)(struct intel_guc *guc, const u32 *data, u32 len);
/* GuC's FW specific notify function */
void (*notify)(struct intel_guc *guc);
};
static
inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len)
{
return guc->send(guc, action, len);
}
static inline void intel_guc_notify(struct intel_guc *guc)
{
guc->notify(guc);
}
static inline u32 guc_ggtt_offset(struct i915_vma *vma)
{
u32 offset = i915_ggtt_offset(vma);
GEM_BUG_ON(offset < GUC_WOPCM_TOP);
GEM_BUG_ON(range_overflows_t(u64, offset, vma->size, GUC_GGTT_TOP));
return offset;
}
void intel_guc_init_early(struct intel_guc *guc);
void intel_guc_init_send_regs(struct intel_guc *guc);
int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_sample_forcewake(struct intel_guc *guc);
int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
int intel_guc_suspend(struct drm_i915_private *dev_priv);
int intel_guc_resume(struct drm_i915_private *dev_priv);
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
int intel_guc_select_fw(struct intel_guc *guc);
int intel_guc_init_hw(struct intel_guc *guc);
u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv);
#endif

48
drivers/gpu/drm/i915/intel_guc_fwif.h
View File

@ -178,49 +178,49 @@
*/
struct uc_css_header {
uint32_t module_type;
u32 module_type;
/* header_size includes all non-uCode bits, including css_header, rsa
* key, modulus key and exponent data. */
uint32_t header_size_dw;
uint32_t header_version;
uint32_t module_id;
uint32_t module_vendor;
u32 header_size_dw;
u32 header_version;
u32 module_id;
u32 module_vendor;
union {
struct {
uint8_t day;
uint8_t month;
uint16_t year;
u8 day;
u8 month;
u16 year;
};
uint32_t date;
u32 date;
};
uint32_t size_dw; /* uCode plus header_size_dw */
uint32_t key_size_dw;
uint32_t modulus_size_dw;
uint32_t exponent_size_dw;
u32 size_dw; /* uCode plus header_size_dw */
u32 key_size_dw;
u32 modulus_size_dw;
u32 exponent_size_dw;
union {
struct {
uint8_t hour;
uint8_t min;
uint16_t sec;
u8 hour;
u8 min;
u16 sec;
};
uint32_t time;
u32 time;
};
char username[8];
char buildnumber[12];
union {
struct {
uint32_t branch_client_version;
uint32_t sw_version;
u32 branch_client_version;
u32 sw_version;
} guc;
struct {
uint32_t sw_version;
uint32_t reserved;
u32 sw_version;
u32 reserved;
} huc;
};
uint32_t prod_preprod_fw;
uint32_t reserved[12];
uint32_t header_info;
u32 prod_preprod_fw;
u32 reserved[12];
u32 header_info;
} __packed;
struct guc_doorbell_info {

5
drivers/gpu/drm/i915/intel_guc_loader.c
View File

@ -386,10 +386,7 @@ int intel_guc_select_fw(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
guc->fw.path = NULL;
guc->fw.fetch_status = INTEL_UC_FIRMWARE_NONE;
guc->fw.load_status = INTEL_UC_FIRMWARE_NONE;
guc->fw.type = INTEL_UC_FW_TYPE_GUC;
intel_uc_fw_init(&guc->fw, INTEL_UC_FW_TYPE_GUC);
if (i915_modparams.guc_firmware_path) {
guc->fw.path = i915_modparams.guc_firmware_path;

6
drivers/gpu/drm/i915/intel_guc_log.c
View File

@ -21,8 +21,11 @@
* IN THE SOFTWARE.
*
*/
#include <linux/debugfs.h>
#include <linux/relay.h>
#include "intel_guc_log.h"
#include "i915_drv.h"
static void guc_log_capture_logs(struct intel_guc *guc);
@ -525,7 +528,8 @@ int intel_guc_log_create(struct intel_guc *guc)
{
struct i915_vma *vma;
unsigned long offset;
uint32_t size, flags;
u32 flags;
u32 size;
int ret;
GEM_BUG_ON(guc->log.vma);

59
drivers/gpu/drm/i915/intel_guc_log.h Normal file
View File

@ -0,0 +1,59 @@
/*
* Copyright © 2014-2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef _INTEL_GUC_LOG_H_
#define _INTEL_GUC_LOG_H_
#include <linux/workqueue.h>
#include "intel_guc_fwif.h"
struct drm_i915_private;
struct intel_guc;
struct intel_guc_log {
u32 flags;
struct i915_vma *vma;
/* The runtime stuff gets created only when GuC logging gets enabled */
struct {
void *buf_addr;
struct workqueue_struct *flush_wq;
struct work_struct flush_work;
struct rchan *relay_chan;
} runtime;
/* logging related stats */
u32 capture_miss_count;
u32 flush_interrupt_count;
u32 prev_overflow_count[GUC_MAX_LOG_BUFFER];
u32 total_overflow_count[GUC_MAX_LOG_BUFFER];
u32 flush_count[GUC_MAX_LOG_BUFFER];
};
int intel_guc_log_create(struct intel_guc *guc);
void intel_guc_log_destroy(struct intel_guc *guc);
int i915_guc_log_control(struct drm_i915_private *dev_priv, u64 control_val);
void i915_guc_log_register(struct drm_i915_private *dev_priv);
void i915_guc_log_unregister(struct drm_i915_private *dev_priv);
#endif

11
drivers/gpu/drm/i915/intel_huc.c
View File

@ -21,9 +21,11 @@
* IN THE SOFTWARE.
*
*/
#include <linux/firmware.h>
#include <linux/types.h>
#include "intel_huc.h"
#include "i915_drv.h"
#include "intel_uc.h"
/**
* DOC: HuC Firmware
@ -150,10 +152,7 @@ void intel_huc_select_fw(struct intel_huc *huc)
{
struct drm_i915_private *dev_priv = huc_to_i915(huc);
huc->fw.path = NULL;
huc->fw.fetch_status = INTEL_UC_FIRMWARE_NONE;
huc->fw.load_status = INTEL_UC_FIRMWARE_NONE;
huc->fw.type = INTEL_UC_FW_TYPE_HUC;
intel_uc_fw_init(&huc->fw, INTEL_UC_FW_TYPE_HUC);
if (i915_modparams.huc_firmware_path) {
huc->fw.path = i915_modparams.huc_firmware_path;

41
drivers/gpu/drm/i915/intel_huc.h Normal file
View File

@ -0,0 +1,41 @@
/*
* Copyright © 2014-2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef _INTEL_HUC_H_
#define _INTEL_HUC_H_
#include "intel_uc_fw.h"
struct intel_huc {
/* Generic uC firmware management */
struct intel_uc_fw fw;
/* HuC-specific additions */
};
void intel_huc_select_fw(struct intel_huc *huc);
void intel_huc_init_hw(struct intel_huc *huc);
void intel_huc_auth(struct intel_huc *huc);
#endif

282
drivers/gpu/drm/i915/intel_lrc.c
View File

@ -208,8 +208,9 @@
/* Typical size of the average request (2 pipecontrols and a MI_BB) */
#define EXECLISTS_REQUEST_SIZE 64 /* bytes */
#define WA_TAIL_DWORDS 2
#define WA_TAIL_BYTES (sizeof(u32) * WA_TAIL_DWORDS)
#define PREEMPT_ID 0x1
static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
struct intel_engine_cs *engine);
@ -243,8 +244,7 @@ int intel_sanitize_enable_execlists(struct drm_i915_private *dev_priv, int enabl
return 0;
if (HAS_LOGICAL_RING_CONTEXTS(dev_priv) &&
USES_PPGTT(dev_priv) &&
i915_modparams.use_mmio_flip >= 0)
USES_PPGTT(dev_priv))
return 1;
return 0;
@ -348,6 +348,43 @@ find_priolist:
return ptr_pack_bits(p, first, 1);
}
static void unwind_wa_tail(struct drm_i915_gem_request *rq)
{
rq->tail = intel_ring_wrap(rq->ring, rq->wa_tail - WA_TAIL_BYTES);
assert_ring_tail_valid(rq->ring, rq->tail);
}
static void unwind_incomplete_requests(struct intel_engine_cs *engine)
{
struct drm_i915_gem_request *rq, *rn;
struct i915_priolist *uninitialized_var(p);
int last_prio = I915_PRIORITY_INVALID;
lockdep_assert_held(&engine->timeline->lock);
list_for_each_entry_safe_reverse(rq, rn,
&engine->timeline->requests,
link) {
if (i915_gem_request_completed(rq))
return;
__i915_gem_request_unsubmit(rq);
unwind_wa_tail(rq);
GEM_BUG_ON(rq->priotree.priority == I915_PRIORITY_INVALID);
if (rq->priotree.priority != last_prio) {
p = lookup_priolist(engine,
&rq->priotree,
rq->priotree.priority);
p = ptr_mask_bits(p, 1);
last_prio = rq->priotree.priority;
}
list_add(&rq->priotree.link, &p->requests);
}
}
static inline void
execlists_context_status_change(struct drm_i915_gem_request *rq,
unsigned long status)
@ -392,6 +429,12 @@ static u64 execlists_update_context(struct drm_i915_gem_request *rq)
return ce->lrc_desc;
}
static inline void elsp_write(u64 desc, u32 __iomem *elsp)
{
writel(upper_32_bits(desc), elsp);
writel(lower_32_bits(desc), elsp);
}
static void execlists_submit_ports(struct intel_engine_cs *engine)
{
struct execlist_port *port = engine->execlists.port;
@ -417,8 +460,7 @@ static void execlists_submit_ports(struct intel_engine_cs *engine)
desc = 0;
}
writel(upper_32_bits(desc), elsp);
writel(lower_32_bits(desc), elsp);
elsp_write(desc, elsp);
}
}
@ -451,26 +493,43 @@ static void port_assign(struct execlist_port *port,
port_set(port, port_pack(i915_gem_request_get(rq), port_count(port)));
}
static void inject_preempt_context(struct intel_engine_cs *engine)
{
struct intel_context *ce =
&engine->i915->preempt_context->engine[engine->id];
u32 __iomem *elsp =
engine->i915->regs + i915_mmio_reg_offset(RING_ELSP(engine));
unsigned int n;
GEM_BUG_ON(engine->i915->preempt_context->hw_id != PREEMPT_ID);
GEM_BUG_ON(!IS_ALIGNED(ce->ring->size, WA_TAIL_BYTES));
memset(ce->ring->vaddr + ce->ring->tail, 0, WA_TAIL_BYTES);
ce->ring->tail += WA_TAIL_BYTES;
ce->ring->tail &= (ce->ring->size - 1);
ce->lrc_reg_state[CTX_RING_TAIL+1] = ce->ring->tail;
for (n = execlists_num_ports(&engine->execlists); --n; )
elsp_write(0, elsp);
elsp_write(ce->lrc_desc, elsp);
}
static bool can_preempt(struct intel_engine_cs *engine)
{
return INTEL_INFO(engine->i915)->has_logical_ring_preemption;
}
static void execlists_dequeue(struct intel_engine_cs *engine)
{
struct drm_i915_gem_request *last;
struct intel_engine_execlists * const execlists = &engine->execlists;
struct execlist_port *port = execlists->port;
const struct execlist_port * const last_port =
&execlists->port[execlists->port_mask];
struct drm_i915_gem_request *last = port_request(port);
struct rb_node *rb;
bool submit = false;
last = port_request(port);
if (last)
/* WaIdleLiteRestore:bdw,skl
* Apply the wa NOOPs to prevent ring:HEAD == req:TAIL
* as we resubmit the request. See gen8_emit_breadcrumb()
* for where we prepare the padding after the end of the
* request.
*/
last->tail = last->wa_tail;
/* Hardware submission is through 2 ports. Conceptually each port
* has a (RING_START, RING_HEAD, RING_TAIL) tuple. RING_START is
* static for a context, and unique to each, so we only execute
@ -495,7 +554,65 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
spin_lock_irq(&engine->timeline->lock);
rb = execlists->first;
GEM_BUG_ON(rb_first(&execlists->queue) != rb);
while (rb) {
if (!rb)
goto unlock;
if (last) {
/*
* Don't resubmit or switch until all outstanding
* preemptions (lite-restore) are seen. Then we
* know the next preemption status we see corresponds
* to this ELSP update.
*/
if (port_count(&port[0]) > 1)
goto unlock;
if (can_preempt(engine) &&
rb_entry(rb, struct i915_priolist, node)->priority >
max(last->priotree.priority, 0)) {
/*
* Switch to our empty preempt context so
* the state of the GPU is known (idle).
*/
inject_preempt_context(engine);
execlists->preempt = true;
goto unlock;
} else {
/*
* In theory, we could coalesce more requests onto
* the second port (the first port is active, with
* no preemptions pending). However, that means we
* then have to deal with the possible lite-restore
* of the second port (as we submit the ELSP, there
* may be a context-switch) but also we may complete
* the resubmission before the context-switch. Ergo,
* coalescing onto the second port will cause a
* preemption event, but we cannot predict whether
* that will affect port[0] or port[1].
*
* If the second port is already active, we can wait
* until the next context-switch before contemplating
* new requests. The GPU will be busy and we should be
* able to resubmit the new ELSP before it idles,
* avoiding pipeline bubbles (momentary pauses where
* the driver is unable to keep up the supply of new
* work).
*/
if (port_count(&port[1]))
goto unlock;
/* WaIdleLiteRestore:bdw,skl
* Apply the wa NOOPs to prevent
* ring:HEAD == req:TAIL as we resubmit the
* request. See gen8_emit_breadcrumb() for
* where we prepare the padding after the
* end of the request.
*/
last->tail = last->wa_tail;
}
}
do {
struct i915_priolist *p = rb_entry(rb, typeof(*p), node);
struct drm_i915_gem_request *rq, *rn;
@ -547,8 +664,6 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
}
INIT_LIST_HEAD(&rq->priotree.link);
rq->priotree.priority = INT_MAX;
__i915_gem_request_submit(rq);
trace_i915_gem_request_in(rq, port_index(port, execlists));
last = rq;
@ -560,11 +675,12 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
INIT_LIST_HEAD(&p->requests);
if (p->priority != I915_PRIORITY_NORMAL)
kmem_cache_free(engine->i915->priorities, p);
}
} while (rb);
done:
execlists->first = rb;
if (submit)
port_assign(port, last);
unlock:
spin_unlock_irq(&engine->timeline->lock);
if (submit)
@ -575,12 +691,12 @@ static void
execlist_cancel_port_requests(struct intel_engine_execlists *execlists)
{
struct execlist_port *port = execlists->port;
unsigned int num_ports = ARRAY_SIZE(execlists->port);
unsigned int num_ports = execlists_num_ports(execlists);
while (num_ports-- && port_isset(port)) {
struct drm_i915_gem_request *rq = port_request(port);
execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_OUT);
execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_PREEMPTED);
i915_gem_request_put(rq);
memset(port, 0, sizeof(*port));
@ -645,13 +761,6 @@ static void execlists_cancel_requests(struct intel_engine_cs *engine)
spin_unlock_irqrestore(&engine->timeline->lock, flags);
}
static bool execlists_elsp_ready(const struct intel_engine_cs *engine)
{
const struct execlist_port *port = engine->execlists.port;
return port_count(&port[0]) + port_count(&port[1]) < 2;
}
/*
* Check the unread Context Status Buffers and manage the submission of new
* contexts to the ELSP accordingly.
@ -660,7 +769,7 @@ static void intel_lrc_irq_handler(unsigned long data)
{
struct intel_engine_cs * const engine = (struct intel_engine_cs *)data;
struct intel_engine_execlists * const execlists = &engine->execlists;
struct execlist_port *port = execlists->port;
struct execlist_port * const port = execlists->port;
struct drm_i915_private *dev_priv = engine->i915;
/* We can skip acquiring intel_runtime_pm_get() here as it was taken
@ -745,6 +854,23 @@ static void intel_lrc_irq_handler(unsigned long data)
if (!(status & GEN8_CTX_STATUS_COMPLETED_MASK))
continue;
if (status & GEN8_CTX_STATUS_ACTIVE_IDLE &&
buf[2*head + 1] == PREEMPT_ID) {
execlist_cancel_port_requests(execlists);
spin_lock_irq(&engine->timeline->lock);
unwind_incomplete_requests(engine);
spin_unlock_irq(&engine->timeline->lock);
GEM_BUG_ON(!execlists->preempt);
execlists->preempt = false;
continue;
}
if (status & GEN8_CTX_STATUS_PREEMPTED &&
execlists->preempt)
continue;
/* Check the context/desc id for this event matches */
GEM_DEBUG_BUG_ON(buf[2 * head + 1] != port->context_id);
@ -756,6 +882,7 @@ static void intel_lrc_irq_handler(unsigned long data)
execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_OUT);
trace_i915_gem_request_out(rq);
rq->priotree.priority = INT_MAX;
i915_gem_request_put(rq);
execlists_port_complete(execlists, port);
@ -775,7 +902,7 @@ static void intel_lrc_irq_handler(unsigned long data)
}
}
if (execlists_elsp_ready(engine))
if (!execlists->preempt)
execlists_dequeue(engine);
intel_uncore_forcewake_put(dev_priv, execlists->fw_domains);
@ -788,7 +915,7 @@ static void insert_request(struct intel_engine_cs *engine,
struct i915_priolist *p = lookup_priolist(engine, pt, prio);
list_add_tail(&pt->link, &ptr_mask_bits(p, 1)->requests);
if (ptr_unmask_bits(p, 1) && execlists_elsp_ready(engine))
if (ptr_unmask_bits(p, 1))
tasklet_hi_schedule(&engine->execlists.irq_tasklet);
}
@ -808,11 +935,15 @@ static void execlists_submit_request(struct drm_i915_gem_request *request)
spin_unlock_irqrestore(&engine->timeline->lock, flags);
}
static struct drm_i915_gem_request *pt_to_request(struct i915_priotree *pt)
{
return container_of(pt, struct drm_i915_gem_request, priotree);
}
static struct intel_engine_cs *
pt_lock_engine(struct i915_priotree *pt, struct intel_engine_cs *locked)
{
struct intel_engine_cs *engine =
container_of(pt, struct drm_i915_gem_request, priotree)->engine;
struct intel_engine_cs *engine = pt_to_request(pt)->engine;
GEM_BUG_ON(!locked);
@ -831,6 +962,8 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio)
struct i915_dependency stack;
LIST_HEAD(dfs);
GEM_BUG_ON(prio == I915_PRIORITY_INVALID);
if (prio <= READ_ONCE(request->priotree.priority))
return;
@ -866,6 +999,9 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio)
* engines.
*/
list_for_each_entry(p, &pt->signalers_list, signal_link) {
if (i915_gem_request_completed(pt_to_request(p->signaler)))
continue;
GEM_BUG_ON(p->signaler->priority < pt->priority);
if (prio > READ_ONCE(p->signaler->priority))
list_move_tail(&p->dfs_link, &dfs);
@ -879,7 +1015,7 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio)
* execlists_submit_request()), we can set our own priority and skip
* acquiring the engine locks.
*/
if (request->priotree.priority == INT_MIN) {
if (request->priotree.priority == I915_PRIORITY_INVALID) {
GEM_BUG_ON(!list_empty(&request->priotree.link));
request->priotree.priority = prio;
if (stack.dfs_link.next == stack.dfs_link.prev)
@ -909,8 +1045,6 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio)
}
spin_unlock_irq(&engine->timeline->lock);
/* XXX Do we need to preempt to make room for us and our deps? */
}
static struct intel_ring *
@ -1106,6 +1240,8 @@ static u32 *gen8_init_indirectctx_bb(struct intel_engine_cs *engine, u32 *batch)
i915_ggtt_offset(engine->scratch) +
2 * CACHELINE_BYTES);
*batch++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
/* Pad to end of cacheline */
while ((unsigned long)batch % CACHELINE_BYTES)
*batch++ = MI_NOOP;
@ -1119,26 +1255,10 @@ static u32 *gen8_init_indirectctx_bb(struct intel_engine_cs *engine, u32 *batch)
return batch;
}
/*
* This batch is started immediately after indirect_ctx batch. Since we ensure
* that indirect_ctx ends on a cacheline this batch is aligned automatically.
*
* The number of DWORDS written are returned using this field.
*
* This batch is terminated with MI_BATCH_BUFFER_END and so we need not add padding
* to align it with cacheline as padding after MI_BATCH_BUFFER_END is redundant.
*/
static u32 *gen8_init_perctx_bb(struct intel_engine_cs *engine, u32 *batch)
{
/* WaDisableCtxRestoreArbitration:bdw,chv */
*batch++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
*batch++ = MI_BATCH_BUFFER_END;
return batch;
}
static u32 *gen9_init_indirectctx_bb(struct intel_engine_cs *engine, u32 *batch)
{
*batch++ = MI_ARB_ON_OFF | MI_ARB_DISABLE;
/* WaFlushCoherentL3CacheLinesAtContextSwitch:skl,bxt,glk */
batch = gen8_emit_flush_coherentl3_wa(engine, batch);
@ -1184,6 +1304,8 @@ static u32 *gen9_init_indirectctx_bb(struct intel_engine_cs *engine, u32 *batch)
*batch++ = 0;
}
*batch++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
/* Pad to end of cacheline */
while ((unsigned long)batch % CACHELINE_BYTES)
*batch++ = MI_NOOP;
@ -1251,7 +1373,7 @@ static int intel_init_workaround_bb(struct intel_engine_cs *engine)
break;
case 8:
wa_bb_fn[0] = gen8_init_indirectctx_bb;
wa_bb_fn[1] = gen8_init_perctx_bb;
wa_bb_fn[1] = NULL;
break;
default:
MISSING_CASE(INTEL_GEN(engine->i915));
@ -1337,6 +1459,7 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine)
GT_CONTEXT_SWITCH_INTERRUPT << engine->irq_shift);
clear_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
execlists->csb_head = -1;
execlists->preempt = false;
/* After a GPU reset, we may have requests to replay */
if (!i915_modparams.enable_guc_submission && execlists->first)
@ -1382,7 +1505,6 @@ static void reset_common_ring(struct intel_engine_cs *engine,
struct drm_i915_gem_request *request)
{
struct intel_engine_execlists * const execlists = &engine->execlists;
struct drm_i915_gem_request *rq, *rn;
struct intel_context *ce;
unsigned long flags;
@ -1400,21 +1522,7 @@ static void reset_common_ring(struct intel_engine_cs *engine,
execlist_cancel_port_requests(execlists);
/* Push back any incomplete requests for replay after the reset. */
list_for_each_entry_safe_reverse(rq, rn,
&engine->timeline->requests, link) {
struct i915_priolist *p;
if (i915_gem_request_completed(rq))
break;
__i915_gem_request_unsubmit(rq);
p = lookup_priolist(engine,
&rq->priotree,
rq->priotree.priority);
list_add(&rq->priotree.link,
&ptr_mask_bits(p, 1)->requests);
}
unwind_incomplete_requests(engine);
spin_unlock_irqrestore(&engine->timeline->lock, flags);
@ -1451,10 +1559,7 @@ static void reset_common_ring(struct intel_engine_cs *engine,
intel_ring_update_space(request->ring);
/* Reset WaIdleLiteRestore:bdw,skl as well */
request->tail =
intel_ring_wrap(request->ring,
request->wa_tail - WA_TAIL_DWORDS*sizeof(u32));
assert_ring_tail_valid(request->ring, request->tail);
unwind_wa_tail(request);
}
static int intel_logical_ring_emit_pdps(struct drm_i915_gem_request *req)
@ -1513,13 +1618,31 @@ static int gen8_emit_bb_start(struct drm_i915_gem_request *req,
if (IS_ERR(cs))
return PTR_ERR(cs);
/*
* WaDisableCtxRestoreArbitration:bdw,chv
*
* We don't need to perform MI_ARB_ENABLE as often as we do (in
* particular all the gen that do not need the w/a at all!), if we
* took care to make sure that on every switch into this context
* (both ordinary and for preemption) that arbitrartion was enabled
* we would be fine. However, there doesn't seem to be a downside to
* being paranoid and making sure it is set before each batch and
* every context-switch.
*
* Note that if we fail to enable arbitration before the request
* is complete, then we do not see the context-switch interrupt and
* the engine hangs (with RING_HEAD == RING_TAIL).
*
* That satisfies both the GPGPU w/a and our heavy-handed paranoia.
*/
*cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
/* FIXME(BDW): Address space and security selectors. */
*cs++ = MI_BATCH_BUFFER_START_GEN8 |
(flags & I915_DISPATCH_SECURE ? 0 : BIT(8)) |
(flags & I915_DISPATCH_RS ? MI_BATCH_RESOURCE_STREAMER : 0);
*cs++ = lower_32_bits(offset);
*cs++ = upper_32_bits(offset);
*cs++ = MI_NOOP;
intel_ring_advance(req, cs);
return 0;
@ -1648,7 +1771,8 @@ static int gen8_emit_flush_render(struct drm_i915_gem_request *request,
*/
static void gen8_emit_wa_tail(struct drm_i915_gem_request *request, u32 *cs)
{
*cs++ = MI_NOOP;
/* Ensure there's always at least one preemption point per-request. */
*cs++ = MI_ARB_CHECK;
*cs++ = MI_NOOP;
request->wa_tail = intel_ring_offset(request, cs);
}
@ -1669,7 +1793,6 @@ static void gen8_emit_breadcrumb(struct drm_i915_gem_request *request, u32 *cs)
gen8_emit_wa_tail(request, cs);
}
static const int gen8_emit_breadcrumb_sz = 6 + WA_TAIL_DWORDS;
static void gen8_emit_breadcrumb_render(struct drm_i915_gem_request *request,
@ -1697,7 +1820,6 @@ static void gen8_emit_breadcrumb_render(struct drm_i915_gem_request *request,
gen8_emit_wa_tail(request, cs);
}
static const int gen8_emit_breadcrumb_render_sz = 8 + WA_TAIL_DWORDS;
static int gen8_init_rcs_context(struct drm_i915_gem_request *req)

1
drivers/gpu/drm/i915/intel_lrc.h
View File

@ -61,6 +61,7 @@
enum {
INTEL_CONTEXT_SCHEDULE_IN = 0,
INTEL_CONTEXT_SCHEDULE_OUT,
INTEL_CONTEXT_SCHEDULE_PREEMPTED,
};
/* Logical Rings */

23
drivers/gpu/drm/i915/intel_lvds.c
View File

@ -939,10 +939,8 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
struct drm_display_mode *fixed_mode = NULL;
struct drm_display_mode *downclock_mode = NULL;
struct edid *edid;
struct intel_crtc *crtc;
i915_reg_t lvds_reg;
u32 lvds;
int pipe;
u8 pin;
u32 allowed_scalers;
@ -1113,22 +1111,11 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
* on. If so, assume that whatever is currently programmed is the
* correct mode.
*/
/* Ironlake: FIXME if still fail, not try pipe mode now */
if (HAS_PCH_SPLIT(dev_priv))
goto failed;
pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
if (crtc && (lvds & LVDS_PORT_EN)) {
fixed_mode = intel_crtc_mode_get(dev, &crtc->base);
if (fixed_mode) {
DRM_DEBUG_KMS("using current (BIOS) mode: ");
drm_mode_debug_printmodeline(fixed_mode);
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
goto out;
}
fixed_mode = intel_encoder_current_mode(intel_encoder);
if (fixed_mode) {
DRM_DEBUG_KMS("using current (BIOS) mode: ");
drm_mode_debug_printmodeline(fixed_mode);
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
}
/* If we still don't have a mode after all that, give up. */

15
drivers/gpu/drm/i915/intel_pipe_crc.c
View File

@ -206,11 +206,11 @@ static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
static int display_crc_ctl_show(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = m->private;
int i;
enum pipe pipe;
for (i = 0; i < I915_MAX_PIPES; i++)
seq_printf(m, "%c %s\n", pipe_name(i),
pipe_crc_source_name(dev_priv->pipe_crc[i].source));
for_each_pipe(dev_priv, pipe)
seq_printf(m, "%c %s\n", pipe_name(pipe),
pipe_crc_source_name(dev_priv->pipe_crc[pipe].source));
return 0;
}
@ -775,11 +775,12 @@ display_crc_ctl_parse_object(const char *buf, enum intel_pipe_crc_object *o)
return -EINVAL;
}
static int display_crc_ctl_parse_pipe(const char *buf, enum pipe *pipe)
static int display_crc_ctl_parse_pipe(struct drm_i915_private *dev_priv,
const char *buf, enum pipe *pipe)
{
const char name = buf[0];
if (name < 'A' || name >= pipe_name(I915_MAX_PIPES))
if (name < 'A' || name >= pipe_name(INTEL_INFO(dev_priv)->num_pipes))
return -EINVAL;
*pipe = name - 'A';
@ -828,7 +829,7 @@ static int display_crc_ctl_parse(struct drm_i915_private *dev_priv,
return -EINVAL;
}
if (display_crc_ctl_parse_pipe(words[1], &pipe) < 0) {
if (display_crc_ctl_parse_pipe(dev_priv, words[1], &pipe) < 0) {
DRM_DEBUG_DRIVER("unknown pipe %s\n", words[1]);
return -EINVAL;
}

721
drivers/gpu/drm/i915/intel_pm.c
View File

File diff suppressed because it is too large Load Diff

11
drivers/gpu/drm/i915/intel_ringbuffer.c
View File

@ -579,7 +579,16 @@ out:
static void reset_ring_common(struct intel_engine_cs *engine,
struct drm_i915_gem_request *request)
{
/* Try to restore the logical GPU state to match the continuation
/*
* RC6 must be prevented until the reset is complete and the engine
* reinitialised. If it occurs in the middle of this sequence, the
* state written to/loaded from the power context is ill-defined (e.g.
* the PP_BASE_DIR may be lost).
*/
assert_forcewakes_active(engine->i915, FORCEWAKE_ALL);
/*
* Try to restore the logical GPU state to match the continuation
* of the request queue. If we skip the context/PD restore, then
* the next request may try to execute assuming that its context
* is valid and loaded on the GPU and so may try to access invalid

9
drivers/gpu/drm/i915/intel_ringbuffer.h
View File

@ -7,6 +7,8 @@
#include "i915_gem_timeline.h"
#include "i915_selftest.h"
struct drm_printer;
#define I915_CMD_HASH_ORDER 9
/* Early gen2 devices have a cacheline of just 32 bytes, using 64 is overkill,
@ -238,6 +240,11 @@ struct intel_engine_execlists {
#define EXECLIST_MAX_PORTS 2
} port[EXECLIST_MAX_PORTS];
/**
* @preempt: are we currently handling a preempting context switch?
*/
bool preempt;
/**
* @port_mask: number of execlist ports - 1
*/
@ -834,4 +841,6 @@ void intel_engines_reset_default_submission(struct drm_i915_private *i915);
bool intel_engine_can_store_dword(struct intel_engine_cs *engine);
void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *p);
#endif /* _INTEL_RINGBUFFER_H_ */

31
drivers/gpu/drm/i915/intel_runtime_pm.c
View File

@ -187,7 +187,7 @@ bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well;
bool is_enabled;
if (dev_priv->pm.suspended)
if (dev_priv->runtime_pm.suspended)
return false;
is_enabled = true;
@ -368,7 +368,7 @@ static void hsw_power_well_enable(struct drm_i915_private *dev_priv,
{
enum i915_power_well_id id = power_well->id;
bool wait_fuses = power_well->hsw.has_fuses;
enum skl_power_gate pg;
enum skl_power_gate uninitialized_var(pg);
u32 val;
if (wait_fuses) {
@ -785,7 +785,7 @@ static void vlv_set_power_well(struct drm_i915_private *dev_priv,
state = enable ? PUNIT_PWRGT_PWR_ON(power_well_id) :
PUNIT_PWRGT_PWR_GATE(power_well_id);
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
#define COND \
((vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_STATUS) & mask) == state)
@ -806,7 +806,7 @@ static void vlv_set_power_well(struct drm_i915_private *dev_priv,
#undef COND
out:
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
}
static void vlv_power_well_enable(struct drm_i915_private *dev_priv,
@ -833,7 +833,7 @@ static bool vlv_power_well_enabled(struct drm_i915_private *dev_priv,
mask = PUNIT_PWRGT_MASK(power_well_id);
ctrl = PUNIT_PWRGT_PWR_ON(power_well_id);
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
state = vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_STATUS) & mask;
/*
@ -852,7 +852,7 @@ static bool vlv_power_well_enabled(struct drm_i915_private *dev_priv,
ctrl = vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_CTRL) & mask;
WARN_ON(ctrl != state);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
return enabled;
}
@ -1364,7 +1364,7 @@ static bool chv_pipe_power_well_enabled(struct drm_i915_private *dev_priv,
bool enabled;
u32 state, ctrl;
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
state = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & DP_SSS_MASK(pipe);
/*
@ -1381,7 +1381,7 @@ static bool chv_pipe_power_well_enabled(struct drm_i915_private *dev_priv,
ctrl = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & DP_SSC_MASK(pipe);
WARN_ON(ctrl << 16 != state);
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
return enabled;
}
@ -1396,7 +1396,7 @@ static void chv_set_pipe_power_well(struct drm_i915_private *dev_priv,
state = enable ? DP_SSS_PWR_ON(pipe) : DP_SSS_PWR_GATE(pipe);
mutex_lock(&dev_priv->rps.hw_lock);
mutex_lock(&dev_priv->pcu_lock);
#define COND \
((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & DP_SSS_MASK(pipe)) == state)
@ -1417,7 +1417,7 @@ static void chv_set_pipe_power_well(struct drm_i915_private *dev_priv,
#undef COND
out:
mutex_unlock(&dev_priv->rps.hw_lock);
mutex_unlock(&dev_priv->pcu_lock);
}
static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
@ -2809,6 +2809,9 @@ static void cnl_display_core_init(struct drm_i915_private *dev_priv, bool resume
/* 6. Enable DBUF */
gen9_dbuf_enable(dev_priv);
if (resume && dev_priv->csr.dmc_payload)
intel_csr_load_program(dev_priv);
}
static void cnl_display_core_uninit(struct drm_i915_private *dev_priv)
@ -3125,7 +3128,7 @@ void intel_runtime_pm_get(struct drm_i915_private *dev_priv)
ret = pm_runtime_get_sync(kdev);
WARN_ONCE(ret < 0, "pm_runtime_get_sync() failed: %d\n", ret);
atomic_inc(&dev_priv->pm.wakeref_count);
atomic_inc(&dev_priv->runtime_pm.wakeref_count);
assert_rpm_wakelock_held(dev_priv);
}
@ -3159,7 +3162,7 @@ bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv)
return false;
}
atomic_inc(&dev_priv->pm.wakeref_count);
atomic_inc(&dev_priv->runtime_pm.wakeref_count);
assert_rpm_wakelock_held(dev_priv);
return true;
@ -3190,7 +3193,7 @@ void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv)
assert_rpm_wakelock_held(dev_priv);
pm_runtime_get_noresume(kdev);
atomic_inc(&dev_priv->pm.wakeref_count);
atomic_inc(&dev_priv->runtime_pm.wakeref_count);
}
/**
@ -3207,7 +3210,7 @@ void intel_runtime_pm_put(struct drm_i915_private *dev_priv)
struct device *kdev = &pdev->dev;
assert_rpm_wakelock_held(dev_priv);
atomic_dec(&dev_priv->pm.wakeref_count);
atomic_dec(&dev_priv->runtime_pm.wakeref_count);
pm_runtime_mark_last_busy(kdev);
pm_runtime_put_autosuspend(kdev);

6
drivers/gpu/drm/i915/intel_sideband.c
View File

@ -81,7 +81,7 @@ u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr)
{
u32 val = 0;
WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
WARN_ON(!mutex_is_locked(&dev_priv->pcu_lock));
mutex_lock(&dev_priv->sb_lock);
vlv_sideband_rw(dev_priv, PCI_DEVFN(0, 0), IOSF_PORT_PUNIT,
@ -95,7 +95,7 @@ int vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val)
{
int err;
WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
WARN_ON(!mutex_is_locked(&dev_priv->pcu_lock));
mutex_lock(&dev_priv->sb_lock);
err = vlv_sideband_rw(dev_priv, PCI_DEVFN(0, 0), IOSF_PORT_PUNIT,
@ -125,7 +125,7 @@ u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr)
{
u32 val = 0;
WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
WARN_ON(!mutex_is_locked(&dev_priv->pcu_lock));
mutex_lock(&dev_priv->sb_lock);
vlv_sideband_rw(dev_priv, PCI_DEVFN(0, 0), IOSF_PORT_NC,

6
drivers/gpu/drm/i915/intel_sprite.c
View File

@ -66,7 +66,13 @@ int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
1000 * adjusted_mode->crtc_htotal);
}
/* FIXME: We should instead only take spinlocks once for the entire update
* instead of once per mmio. */
#if IS_ENABLED(CONFIG_PROVE_LOCKING)
#define VBLANK_EVASION_TIME_US 250
#else
#define VBLANK_EVASION_TIME_US 100
#endif
/**
* intel_pipe_update_start() - start update of a set of display registers

313
drivers/gpu/drm/i915/intel_uc.c
View File

@ -22,22 +22,9 @@
*
*/
#include "i915_drv.h"
#include "intel_uc.h"
#include <linux/firmware.h>
/* Cleans up uC firmware by releasing the firmware GEM obj.
*/
static void __intel_uc_fw_fini(struct intel_uc_fw *uc_fw)
{
struct drm_i915_gem_object *obj;
obj = fetch_and_zero(&uc_fw->obj);
if (obj)
i915_gem_object_put(obj);
uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE;
}
#include "i915_drv.h"
#include "i915_guc_submission.h"
/* Reset GuC providing us with fresh state for both GuC and HuC.
*/
@ -94,198 +81,34 @@ void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
i915_modparams.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
}
static void gen8_guc_raise_irq(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
I915_WRITE(GUC_SEND_INTERRUPT, GUC_SEND_TRIGGER);
}
void intel_uc_init_early(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
intel_guc_ct_init_early(&guc->ct);
mutex_init(&guc->send_mutex);
guc->send = intel_guc_send_nop;
guc->notify = gen8_guc_raise_irq;
}
static void fetch_uc_fw(struct drm_i915_private *dev_priv,
struct intel_uc_fw *uc_fw)
{
struct pci_dev *pdev = dev_priv->drm.pdev;
struct drm_i915_gem_object *obj;
const struct firmware *fw = NULL;
struct uc_css_header *css;
size_t size;
int err;
if (!uc_fw->path)
return;
uc_fw->fetch_status = INTEL_UC_FIRMWARE_PENDING;
DRM_DEBUG_DRIVER("before requesting firmware: uC fw fetch status %s\n",
intel_uc_fw_status_repr(uc_fw->fetch_status));
err = request_firmware(&fw, uc_fw->path, &pdev->dev);
if (err)
goto fail;
if (!fw)
goto fail;
DRM_DEBUG_DRIVER("fetch uC fw from %s succeeded, fw %p\n",
uc_fw->path, fw);
/* Check the size of the blob before examining buffer contents */
if (fw->size < sizeof(struct uc_css_header)) {
DRM_NOTE("Firmware header is missing\n");
goto fail;
}
css = (struct uc_css_header *)fw->data;
/* Firmware bits always start from header */
uc_fw->header_offset = 0;
uc_fw->header_size = (css->header_size_dw - css->modulus_size_dw -
css->key_size_dw - css->exponent_size_dw) * sizeof(u32);
if (uc_fw->header_size != sizeof(struct uc_css_header)) {
DRM_NOTE("CSS header definition mismatch\n");
goto fail;
}
/* then, uCode */
uc_fw->ucode_offset = uc_fw->header_offset + uc_fw->header_size;
uc_fw->ucode_size = (css->size_dw - css->header_size_dw) * sizeof(u32);
/* now RSA */
if (css->key_size_dw != UOS_RSA_SCRATCH_MAX_COUNT) {
DRM_NOTE("RSA key size is bad\n");
goto fail;
}
uc_fw->rsa_offset = uc_fw->ucode_offset + uc_fw->ucode_size;
uc_fw->rsa_size = css->key_size_dw * sizeof(u32);
/* At least, it should have header, uCode and RSA. Size of all three. */
size = uc_fw->header_size + uc_fw->ucode_size + uc_fw->rsa_size;
if (fw->size < size) {
DRM_NOTE("Missing firmware components\n");
goto fail;
}
/*
* The GuC firmware image has the version number embedded at a
* well-known offset within the firmware blob; note that major / minor
* version are TWO bytes each (i.e. u16), although all pointers and
* offsets are defined in terms of bytes (u8).
*/
switch (uc_fw->type) {
case INTEL_UC_FW_TYPE_GUC:
/* Header and uCode will be loaded to WOPCM. Size of the two. */
size = uc_fw->header_size + uc_fw->ucode_size;
/* Top 32k of WOPCM is reserved (8K stack + 24k RC6 context). */
if (size > intel_guc_wopcm_size(dev_priv)) {
DRM_ERROR("Firmware is too large to fit in WOPCM\n");
goto fail;
}
uc_fw->major_ver_found = css->guc.sw_version >> 16;
uc_fw->minor_ver_found = css->guc.sw_version & 0xFFFF;
break;
case INTEL_UC_FW_TYPE_HUC:
uc_fw->major_ver_found = css->huc.sw_version >> 16;
uc_fw->minor_ver_found = css->huc.sw_version & 0xFFFF;
break;
default:
DRM_ERROR("Unknown firmware type %d\n", uc_fw->type);
err = -ENOEXEC;
goto fail;
}
if (uc_fw->major_ver_wanted == 0 && uc_fw->minor_ver_wanted == 0) {
DRM_NOTE("Skipping %s firmware version check\n",
intel_uc_fw_type_repr(uc_fw->type));
} else if (uc_fw->major_ver_found != uc_fw->major_ver_wanted ||
uc_fw->minor_ver_found < uc_fw->minor_ver_wanted) {
DRM_NOTE("%s firmware version %d.%d, required %d.%d\n",
intel_uc_fw_type_repr(uc_fw->type),
uc_fw->major_ver_found, uc_fw->minor_ver_found,
uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
err = -ENOEXEC;
goto fail;
}
DRM_DEBUG_DRIVER("firmware version %d.%d OK (minimum %d.%d)\n",
uc_fw->major_ver_found, uc_fw->minor_ver_found,
uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
obj = i915_gem_object_create_from_data(dev_priv, fw->data, fw->size);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
goto fail;
}
uc_fw->obj = obj;
uc_fw->size = fw->size;
DRM_DEBUG_DRIVER("uC fw fetch status SUCCESS, obj %p\n",
uc_fw->obj);
release_firmware(fw);
uc_fw->fetch_status = INTEL_UC_FIRMWARE_SUCCESS;
return;
fail:
DRM_WARN("Failed to fetch valid uC firmware from %s (error %d)\n",
uc_fw->path, err);
DRM_DEBUG_DRIVER("uC fw fetch status FAIL; err %d, fw %p, obj %p\n",
err, fw, uc_fw->obj);
release_firmware(fw); /* OK even if fw is NULL */
uc_fw->fetch_status = INTEL_UC_FIRMWARE_FAIL;
intel_guc_init_early(&dev_priv->guc);
}
void intel_uc_init_fw(struct drm_i915_private *dev_priv)
{
fetch_uc_fw(dev_priv, &dev_priv->huc.fw);
fetch_uc_fw(dev_priv, &dev_priv->guc.fw);
intel_uc_fw_fetch(dev_priv, &dev_priv->huc.fw);
intel_uc_fw_fetch(dev_priv, &dev_priv->guc.fw);
}
void intel_uc_fini_fw(struct drm_i915_private *dev_priv)
{
__intel_uc_fw_fini(&dev_priv->guc.fw);
__intel_uc_fw_fini(&dev_priv->huc.fw);
intel_uc_fw_fini(&dev_priv->guc.fw);
intel_uc_fw_fini(&dev_priv->huc.fw);
}
static inline i915_reg_t guc_send_reg(struct intel_guc *guc, u32 i)
/**
* intel_uc_init_mmio - setup uC MMIO access
*
* @dev_priv: device private
*
* Setup minimal state necessary for MMIO accesses later in the
* initialization sequence.
*/
void intel_uc_init_mmio(struct drm_i915_private *dev_priv)
{
GEM_BUG_ON(!guc->send_regs.base);
GEM_BUG_ON(!guc->send_regs.count);
GEM_BUG_ON(i >= guc->send_regs.count);
return _MMIO(guc->send_regs.base + 4 * i);
}
static void guc_init_send_regs(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
enum forcewake_domains fw_domains = 0;
unsigned int i;
guc->send_regs.base = i915_mmio_reg_offset(SOFT_SCRATCH(0));
guc->send_regs.count = SOFT_SCRATCH_COUNT - 1;
for (i = 0; i < guc->send_regs.count; i++) {
fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
guc_send_reg(guc, i),
FW_REG_READ | FW_REG_WRITE);
}
guc->send_regs.fw_domains = fw_domains;
intel_guc_init_send_regs(&dev_priv->guc);
}
static void guc_capture_load_err_log(struct intel_guc *guc)
@ -309,8 +132,6 @@ static int guc_enable_communication(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
guc_init_send_regs(guc);
if (HAS_GUC_CT(dev_priv))
return intel_guc_enable_ct(guc);
@ -328,27 +149,6 @@ static void guc_disable_communication(struct intel_guc *guc)
guc->send = intel_guc_send_nop;
}
/**
* intel_guc_auth_huc() - Send action to GuC to authenticate HuC ucode
* @guc: intel_guc structure
* @rsa_offset: rsa offset w.r.t ggtt base of huc vma
*
* Triggers a HuC firmware authentication request to the GuC via intel_guc_send
* INTEL_GUC_ACTION_AUTHENTICATE_HUC interface. This function is invoked by
* intel_huc_auth().
*
* Return: non-zero code on error
*/
int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset)
{
u32 action[] = {
INTEL_GUC_ACTION_AUTHENTICATE_HUC,
rsa_offset
};
return intel_guc_send(guc, action, ARRAY_SIZE(action));
}
int intel_uc_init_hw(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
@ -480,82 +280,3 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
i915_ggtt_disable_guc(dev_priv);
}
int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len)
{
WARN(1, "Unexpected send: action=%#x\n", *action);
return -ENODEV;
}
/*
* This function implements the MMIO based host to GuC interface.
*/
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
u32 status;
int i;
int ret;
GEM_BUG_ON(!len);
GEM_BUG_ON(len > guc->send_regs.count);
/* If CT is available, we expect to use MMIO only during init/fini */
GEM_BUG_ON(HAS_GUC_CT(dev_priv) &&
*action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
*action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
mutex_lock(&guc->send_mutex);
intel_uncore_forcewake_get(dev_priv, guc->send_regs.fw_domains);
for (i = 0; i < len; i++)
I915_WRITE(guc_send_reg(guc, i), action[i]);
POSTING_READ(guc_send_reg(guc, i - 1));
intel_guc_notify(guc);
/*
* No GuC command should ever take longer than 10ms.
* Fast commands should still complete in 10us.
*/
ret = __intel_wait_for_register_fw(dev_priv,
guc_send_reg(guc, 0),
INTEL_GUC_RECV_MASK,
INTEL_GUC_RECV_MASK,
10, 10, &status);
if (status != INTEL_GUC_STATUS_SUCCESS) {
/*
* Either the GuC explicitly returned an error (which
* we convert to -EIO here) or no response at all was
* received within the timeout limit (-ETIMEDOUT)
*/
if (ret != -ETIMEDOUT)
ret = -EIO;
DRM_WARN("INTEL_GUC_SEND: Action 0x%X failed;"
" ret=%d status=0x%08X response=0x%08X\n",
action[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
}
intel_uncore_forcewake_put(dev_priv, guc->send_regs.fw_domains);
mutex_unlock(&guc->send_mutex);
return ret;
}
int intel_guc_sample_forcewake(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
u32 action[2];
action[0] = INTEL_GUC_ACTION_SAMPLE_FORCEWAKE;
/* WaRsDisableCoarsePowerGating:skl,bxt */
if (!intel_enable_rc6() || NEEDS_WaRsDisableCoarsePowerGating(dev_priv))
action[1] = 0;
else
/* bit 0 and 1 are for Render and Media domain separately */
action[1] = GUC_FORCEWAKE_RENDER | GUC_FORCEWAKE_MEDIA;
return intel_guc_send(guc, action, ARRAY_SIZE(action));
}

228
drivers/gpu/drm/i915/intel_uc.h
View File

@ -24,237 +24,15 @@
#ifndef _INTEL_UC_H_
#define _INTEL_UC_H_
#include "intel_guc_fwif.h"
#include "i915_guc_reg.h"
#include "intel_ringbuffer.h"
#include "intel_guc_ct.h"
#include "i915_vma.h"
#include "intel_guc.h"
#include "intel_huc.h"
struct drm_i915_gem_request;
/*
* This structure primarily describes the GEM object shared with the GuC.
* The specs sometimes refer to this object as a "GuC context", but we use
* the term "client" to avoid confusion with hardware contexts. This
* GEM object is held for the entire lifetime of our interaction with
* the GuC, being allocated before the GuC is loaded with its firmware.
* Because there's no way to update the address used by the GuC after
* initialisation, the shared object must stay pinned into the GGTT as
* long as the GuC is in use. We also keep the first page (only) mapped
* into kernel address space, as it includes shared data that must be
* updated on every request submission.
*
* The single GEM object described here is actually made up of several
* separate areas, as far as the GuC is concerned. The first page (kept
* kmap'd) includes the "process descriptor" which holds sequence data for
* the doorbell, and one cacheline which actually *is* the doorbell; a
* write to this will "ring the doorbell" (i.e. send an interrupt to the
* GuC). The subsequent pages of the client object constitute the work
* queue (a circular array of work items), again described in the process
* descriptor. Work queue pages are mapped momentarily as required.
*/
struct i915_guc_client {
struct i915_vma *vma;
void *vaddr;
struct i915_gem_context *owner;
struct intel_guc *guc;
uint32_t engines; /* bitmap of (host) engine ids */
uint32_t priority;
u32 stage_id;
uint32_t proc_desc_offset;
u16 doorbell_id;
unsigned long doorbell_offset;
spinlock_t wq_lock;
/* Per-engine counts of GuC submissions */
uint64_t submissions[I915_NUM_ENGINES];
};
enum intel_uc_fw_status {
INTEL_UC_FIRMWARE_FAIL = -1,
INTEL_UC_FIRMWARE_NONE = 0,
INTEL_UC_FIRMWARE_PENDING,
INTEL_UC_FIRMWARE_SUCCESS
};
/* User-friendly representation of an enum */
static inline
const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status)
{
switch (status) {
case INTEL_UC_FIRMWARE_FAIL:
return "FAIL";
case INTEL_UC_FIRMWARE_NONE:
return "NONE";
case INTEL_UC_FIRMWARE_PENDING:
return "PENDING";
case INTEL_UC_FIRMWARE_SUCCESS:
return "SUCCESS";
}
return "<invalid>";
}
enum intel_uc_fw_type {
INTEL_UC_FW_TYPE_GUC,
INTEL_UC_FW_TYPE_HUC
};
/* User-friendly representation of an enum */
static inline const char *intel_uc_fw_type_repr(enum intel_uc_fw_type type)
{
switch (type) {
case INTEL_UC_FW_TYPE_GUC:
return "GuC";
case INTEL_UC_FW_TYPE_HUC:
return "HuC";
}
return "uC";
}
/*
* This structure encapsulates all the data needed during the process
* of fetching, caching, and loading the firmware image into the GuC.
*/
struct intel_uc_fw {
const char *path;
size_t size;
struct drm_i915_gem_object *obj;
enum intel_uc_fw_status fetch_status;
enum intel_uc_fw_status load_status;
uint16_t major_ver_wanted;
uint16_t minor_ver_wanted;
uint16_t major_ver_found;
uint16_t minor_ver_found;
enum intel_uc_fw_type type;
uint32_t header_size;
uint32_t header_offset;
uint32_t rsa_size;
uint32_t rsa_offset;
uint32_t ucode_size;
uint32_t ucode_offset;
};
struct intel_guc_log {
uint32_t flags;
struct i915_vma *vma;
/* The runtime stuff gets created only when GuC logging gets enabled */
struct {
void *buf_addr;
struct workqueue_struct *flush_wq;
struct work_struct flush_work;
struct rchan *relay_chan;
} runtime;
/* logging related stats */
u32 capture_miss_count;
u32 flush_interrupt_count;
u32 prev_overflow_count[GUC_MAX_LOG_BUFFER];
u32 total_overflow_count[GUC_MAX_LOG_BUFFER];
u32 flush_count[GUC_MAX_LOG_BUFFER];
};
struct intel_guc {
struct intel_uc_fw fw;
struct intel_guc_log log;
struct intel_guc_ct ct;
/* Log snapshot if GuC errors during load */
struct drm_i915_gem_object *load_err_log;
/* intel_guc_recv interrupt related state */
bool interrupts_enabled;
struct i915_vma *ads_vma;
struct i915_vma *stage_desc_pool;
void *stage_desc_pool_vaddr;
struct ida stage_ids;
struct i915_guc_client *execbuf_client;
DECLARE_BITMAP(doorbell_bitmap, GUC_NUM_DOORBELLS);
uint32_t db_cacheline; /* Cyclic counter mod pagesize */
/* GuC's FW specific registers used in MMIO send */
struct {
u32 base;
unsigned int count;
enum forcewake_domains fw_domains;
} send_regs;
/* To serialize the intel_guc_send actions */
struct mutex send_mutex;
/* GuC's FW specific send function */
int (*send)(struct intel_guc *guc, const u32 *data, u32 len);
/* GuC's FW specific notify function */
void (*notify)(struct intel_guc *guc);
};
struct intel_huc {
/* Generic uC firmware management */
struct intel_uc_fw fw;
/* HuC-specific additions */
};
/* intel_uc.c */
void intel_uc_sanitize_options(struct drm_i915_private *dev_priv);
void intel_uc_init_early(struct drm_i915_private *dev_priv);
void intel_uc_init_mmio(struct drm_i915_private *dev_priv);
void intel_uc_init_fw(struct drm_i915_private *dev_priv);
void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
int intel_uc_init_hw(struct drm_i915_private *dev_priv);
void intel_uc_fini_hw(struct drm_i915_private *dev_priv);
int intel_guc_sample_forcewake(struct intel_guc *guc);
int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
static inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len)
{
return guc->send(guc, action, len);
}
static inline void intel_guc_notify(struct intel_guc *guc)
{
guc->notify(guc);
}
/* intel_guc_loader.c */
int intel_guc_select_fw(struct intel_guc *guc);
int intel_guc_init_hw(struct intel_guc *guc);
int intel_guc_suspend(struct drm_i915_private *dev_priv);
int intel_guc_resume(struct drm_i915_private *dev_priv);
u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv);
/* i915_guc_submission.c */
int i915_guc_submission_init(struct drm_i915_private *dev_priv);
int i915_guc_submission_enable(struct drm_i915_private *dev_priv);
void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
/* intel_guc_log.c */
int intel_guc_log_create(struct intel_guc *guc);
void intel_guc_log_destroy(struct intel_guc *guc);
int i915_guc_log_control(struct drm_i915_private *dev_priv, u64 control_val);
void i915_guc_log_register(struct drm_i915_private *dev_priv);
void i915_guc_log_unregister(struct drm_i915_private *dev_priv);
static inline u32 guc_ggtt_offset(struct i915_vma *vma)
{
u32 offset = i915_ggtt_offset(vma);
GEM_BUG_ON(offset < GUC_WOPCM_TOP);
GEM_BUG_ON(range_overflows_t(u64, offset, vma->size, GUC_GGTT_TOP));
return offset;
}
/* intel_huc.c */
void intel_huc_select_fw(struct intel_huc *huc);
void intel_huc_init_hw(struct intel_huc *huc);
void intel_huc_auth(struct intel_huc *huc);
#endif

193
drivers/gpu/drm/i915/intel_uc_fw.c Normal file
View File

@ -0,0 +1,193 @@
/*
* Copyright © 2016-2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#include <linux/firmware.h>
#include "intel_uc_fw.h"
#include "i915_drv.h"
/**
* intel_uc_fw_fetch - fetch uC firmware
*
* @dev_priv: device private
* @uc_fw: uC firmware
*
* Fetch uC firmware into GEM obj.
*/
void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
struct intel_uc_fw *uc_fw)
{
struct pci_dev *pdev = dev_priv->drm.pdev;
struct drm_i915_gem_object *obj;
const struct firmware *fw = NULL;
struct uc_css_header *css;
size_t size;
int err;
if (!uc_fw->path)
return;
uc_fw->fetch_status = INTEL_UC_FIRMWARE_PENDING;
DRM_DEBUG_DRIVER("before requesting firmware: uC fw fetch status %s\n",
intel_uc_fw_status_repr(uc_fw->fetch_status));
err = request_firmware(&fw, uc_fw->path, &pdev->dev);
if (err)
goto fail;
if (!fw)
goto fail;
DRM_DEBUG_DRIVER("fetch uC fw from %s succeeded, fw %p\n",
uc_fw->path, fw);
/* Check the size of the blob before examining buffer contents */
if (fw->size < sizeof(struct uc_css_header)) {
DRM_NOTE("Firmware header is missing\n");
goto fail;
}
css = (struct uc_css_header *)fw->data;
/* Firmware bits always start from header */
uc_fw->header_offset = 0;
uc_fw->header_size = (css->header_size_dw - css->modulus_size_dw -
css->key_size_dw - css->exponent_size_dw) *
sizeof(u32);
if (uc_fw->header_size != sizeof(struct uc_css_header)) {
DRM_NOTE("CSS header definition mismatch\n");
goto fail;
}
/* then, uCode */
uc_fw->ucode_offset = uc_fw->header_offset + uc_fw->header_size;
uc_fw->ucode_size = (css->size_dw - css->header_size_dw) * sizeof(u32);
/* now RSA */
if (css->key_size_dw != UOS_RSA_SCRATCH_MAX_COUNT) {
DRM_NOTE("RSA key size is bad\n");
goto fail;
}
uc_fw->rsa_offset = uc_fw->ucode_offset + uc_fw->ucode_size;
uc_fw->rsa_size = css->key_size_dw * sizeof(u32);
/* At least, it should have header, uCode and RSA. Size of all three. */
size = uc_fw->header_size + uc_fw->ucode_size + uc_fw->rsa_size;
if (fw->size < size) {
DRM_NOTE("Missing firmware components\n");
goto fail;
}
/*
* The GuC firmware image has the version number embedded at a
* well-known offset within the firmware blob; note that major / minor
* version are TWO bytes each (i.e. u16), although all pointers and
* offsets are defined in terms of bytes (u8).
*/
switch (uc_fw->type) {
case INTEL_UC_FW_TYPE_GUC:
/* Header and uCode will be loaded to WOPCM. Size of the two. */
size = uc_fw->header_size + uc_fw->ucode_size;
/* Top 32k of WOPCM is reserved (8K stack + 24k RC6 context). */
if (size > intel_guc_wopcm_size(dev_priv)) {
DRM_ERROR("Firmware is too large to fit in WOPCM\n");
goto fail;
}
uc_fw->major_ver_found = css->guc.sw_version >> 16;
uc_fw->minor_ver_found = css->guc.sw_version & 0xFFFF;
break;
case INTEL_UC_FW_TYPE_HUC:
uc_fw->major_ver_found = css->huc.sw_version >> 16;
uc_fw->minor_ver_found = css->huc.sw_version & 0xFFFF;
break;
default:
DRM_ERROR("Unknown firmware type %d\n", uc_fw->type);
err = -ENOEXEC;
goto fail;
}
if (uc_fw->major_ver_wanted == 0 && uc_fw->minor_ver_wanted == 0) {
DRM_NOTE("Skipping %s firmware version check\n",
intel_uc_fw_type_repr(uc_fw->type));
} else if (uc_fw->major_ver_found != uc_fw->major_ver_wanted ||
uc_fw->minor_ver_found < uc_fw->minor_ver_wanted) {
DRM_NOTE("%s firmware version %d.%d, required %d.%d\n",
intel_uc_fw_type_repr(uc_fw->type),
uc_fw->major_ver_found, uc_fw->minor_ver_found,
uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
err = -ENOEXEC;
goto fail;
}
DRM_DEBUG_DRIVER("firmware version %d.%d OK (minimum %d.%d)\n",
uc_fw->major_ver_found, uc_fw->minor_ver_found,
uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
obj = i915_gem_object_create_from_data(dev_priv, fw->data, fw->size);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
goto fail;
}
uc_fw->obj = obj;
uc_fw->size = fw->size;
DRM_DEBUG_DRIVER("uC fw fetch status SUCCESS, obj %p\n",
uc_fw->obj);
release_firmware(fw);
uc_fw->fetch_status = INTEL_UC_FIRMWARE_SUCCESS;
return;
fail:
DRM_WARN("Failed to fetch valid uC firmware from %s (error %d)\n",
uc_fw->path, err);
DRM_DEBUG_DRIVER("uC fw fetch status FAIL; err %d, fw %p, obj %p\n",
err, fw, uc_fw->obj);
release_firmware(fw); /* OK even if fw is NULL */
uc_fw->fetch_status = INTEL_UC_FIRMWARE_FAIL;
}
/**
* intel_uc_fw_fini - cleanup uC firmware
*
* @uc_fw: uC firmware
*
* Cleans up uC firmware by releasing the firmware GEM obj.
*/
void intel_uc_fw_fini(struct intel_uc_fw *uc_fw)
{
struct drm_i915_gem_object *obj;
obj = fetch_and_zero(&uc_fw->obj);
if (obj)
i915_gem_object_put(obj);
uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE;
}

107
drivers/gpu/drm/i915/intel_uc_fw.h Normal file
View File

@ -0,0 +1,107 @@
/*
* Copyright © 2014-2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef _INTEL_UC_FW_H_
#define _INTEL_UC_FW_H_
struct drm_i915_private;
enum intel_uc_fw_status {
INTEL_UC_FIRMWARE_FAIL = -1,
INTEL_UC_FIRMWARE_NONE = 0,
INTEL_UC_FIRMWARE_PENDING,
INTEL_UC_FIRMWARE_SUCCESS
};
enum intel_uc_fw_type {
INTEL_UC_FW_TYPE_GUC,
INTEL_UC_FW_TYPE_HUC
};
/*
* This structure encapsulates all the data needed during the process
* of fetching, caching, and loading the firmware image into the uC.
*/
struct intel_uc_fw {
const char *path;
size_t size;
struct drm_i915_gem_object *obj;
enum intel_uc_fw_status fetch_status;
enum intel_uc_fw_status load_status;
u16 major_ver_wanted;
u16 minor_ver_wanted;
u16 major_ver_found;
u16 minor_ver_found;
enum intel_uc_fw_type type;
u32 header_size;
u32 header_offset;
u32 rsa_size;
u32 rsa_offset;
u32 ucode_size;
u32 ucode_offset;
};
static inline
const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status)
{
switch (status) {
case INTEL_UC_FIRMWARE_FAIL:
return "FAIL";
case INTEL_UC_FIRMWARE_NONE:
return "NONE";
case INTEL_UC_FIRMWARE_PENDING:
return "PENDING";
case INTEL_UC_FIRMWARE_SUCCESS:
return "SUCCESS";
}
return "<invalid>";
}
static inline const char *intel_uc_fw_type_repr(enum intel_uc_fw_type type)
{
switch (type) {
case INTEL_UC_FW_TYPE_GUC:
return "GuC";
case INTEL_UC_FW_TYPE_HUC:
return "HuC";
}
return "uC";
}
static inline
void intel_uc_fw_init(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type)
{
uc_fw->path = NULL;
uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE;
uc_fw->load_status = INTEL_UC_FIRMWARE_NONE;
uc_fw->type = type;
}
void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
struct intel_uc_fw *uc_fw);
void intel_uc_fw_fini(struct intel_uc_fw *uc_fw);
#endif

18
drivers/gpu/drm/i915/intel_uncore.c
View File

@ -626,7 +626,23 @@ void assert_forcewakes_inactive(struct drm_i915_private *dev_priv)
if (!dev_priv->uncore.funcs.force_wake_get)
return;
WARN_ON(dev_priv->uncore.fw_domains_active);
WARN(dev_priv->uncore.fw_domains_active,
"Expected all fw_domains to be inactive, but %08x are still on\n",
dev_priv->uncore.fw_domains_active);
}
void assert_forcewakes_active(struct drm_i915_private *dev_priv,
enum forcewake_domains fw_domains)
{
if (!dev_priv->uncore.funcs.force_wake_get)
return;
assert_rpm_wakelock_held(dev_priv);
fw_domains &= dev_priv->uncore.fw_domains;
WARN(fw_domains & ~dev_priv->uncore.fw_domains_active,
"Expected %08x fw_domains to be active, but %08x are off\n",
fw_domains, fw_domains & ~dev_priv->uncore.fw_domains_active);
}
/* We give fast paths for the really cool registers */

8
drivers/gpu/drm/i915/intel_uncore.h
View File

@ -25,6 +25,12 @@
#ifndef __INTEL_UNCORE_H__
#define __INTEL_UNCORE_H__
#include <linux/spinlock.h>
#include <linux/notifier.h>
#include <linux/hrtimer.h>
#include "i915_reg.h"
struct drm_i915_private;
enum forcewake_domain_id {
@ -131,6 +137,8 @@ void intel_uncore_resume_early(struct drm_i915_private *dev_priv);
u64 intel_uncore_edram_size(struct drm_i915_private *dev_priv);
void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
void assert_forcewakes_active(struct drm_i915_private *dev_priv,
enum forcewake_domains fw_domains);
const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
enum forcewake_domains

14
drivers/gpu/drm/i915/selftests/huge_gem_object.c
View File

@ -37,8 +37,7 @@ static void huge_free_pages(struct drm_i915_gem_object *obj,
kfree(pages);
}
static struct sg_table *
huge_get_pages(struct drm_i915_gem_object *obj)
static int huge_get_pages(struct drm_i915_gem_object *obj)
{
#define GFP (GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY)
const unsigned long nreal = obj->scratch / PAGE_SIZE;
@ -49,11 +48,11 @@ huge_get_pages(struct drm_i915_gem_object *obj)
pages = kmalloc(sizeof(*pages), GFP);
if (!pages)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
if (sg_alloc_table(pages, npages, GFP)) {
kfree(pages);
return ERR_PTR(-ENOMEM);
return -ENOMEM;
}
sg = pages->sgl;
@ -81,11 +80,14 @@ huge_get_pages(struct drm_i915_gem_object *obj)
if (i915_gem_gtt_prepare_pages(obj, pages))
goto err;
return pages;
__i915_gem_object_set_pages(obj, pages, PAGE_SIZE);
return 0;
err:
huge_free_pages(obj, pages);
return ERR_PTR(-ENOMEM);
return -ENOMEM;
#undef GFP
}

1734
drivers/gpu/drm/i915/selftests/huge_pages.c Normal file
View File

File diff suppressed because it is too large Load Diff

15
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
View File

@ -39,25 +39,26 @@ static void fake_free_pages(struct drm_i915_gem_object *obj,
kfree(pages);
}
static struct sg_table *
fake_get_pages(struct drm_i915_gem_object *obj)
static int fake_get_pages(struct drm_i915_gem_object *obj)
{
#define GFP (GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY)
#define PFN_BIAS 0x1000
struct sg_table *pages;
struct scatterlist *sg;
unsigned int sg_page_sizes;
typeof(obj->base.size) rem;
pages = kmalloc(sizeof(*pages), GFP);
if (!pages)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
rem = round_up(obj->base.size, BIT(31)) >> 31;
if (sg_alloc_table(pages, rem, GFP)) {
kfree(pages);
return ERR_PTR(-ENOMEM);
return -ENOMEM;
}
sg_page_sizes = 0;
rem = obj->base.size;
for (sg = pages->sgl; sg; sg = sg_next(sg)) {
unsigned long len = min_t(typeof(rem), rem, BIT(31));
@ -66,13 +67,17 @@ fake_get_pages(struct drm_i915_gem_object *obj)
sg_set_page(sg, pfn_to_page(PFN_BIAS), len, 0);
sg_dma_address(sg) = page_to_phys(sg_page(sg));
sg_dma_len(sg) = len;
sg_page_sizes |= len;
rem -= len;
}
GEM_BUG_ON(rem);
obj->mm.madv = I915_MADV_DONTNEED;
return pages;
__i915_gem_object_set_pages(obj, pages, sg_page_sizes);
return 0;
#undef GFP
}

8
drivers/gpu/drm/i915/selftests/i915_gem_object.c
View File

@ -251,14 +251,6 @@ static int check_partial_mapping(struct drm_i915_gem_object *obj,
return PTR_ERR(io);
}
err = i915_vma_get_fence(vma);
if (err) {
pr_err("Failed to get fence for partial view: offset=%lu\n",
page);
i915_vma_unpin_iomap(vma);
return err;
}
iowrite32(page, io + n * PAGE_SIZE/sizeof(*io));
i915_vma_unpin_iomap(vma);

12
drivers/gpu/drm/i915/selftests/i915_gem_request.c
View File

@ -215,7 +215,9 @@ static int igt_request_rewind(void *arg)
}
i915_gem_request_get(vip);
i915_add_request(vip);
rcu_read_lock();
request->engine->submit_request(request);
rcu_read_unlock();
mutex_unlock(&i915->drm.struct_mutex);
@ -418,7 +420,10 @@ static struct i915_vma *empty_batch(struct drm_i915_private *i915)
err = PTR_ERR(cmd);
goto err;
}
*cmd = MI_BATCH_BUFFER_END;
i915_gem_chipset_flush(i915);
i915_gem_object_unpin_map(obj);
err = i915_gem_object_set_to_gtt_domain(obj, false);
@ -605,8 +610,8 @@ static struct i915_vma *recursive_batch(struct drm_i915_private *i915)
*cmd++ = lower_32_bits(vma->node.start);
}
*cmd++ = MI_BATCH_BUFFER_END; /* terminate early in case of error */
i915_gem_chipset_flush(i915);
wmb();
i915_gem_object_unpin_map(obj);
return vma;
@ -625,7 +630,7 @@ static int recursive_batch_resolve(struct i915_vma *batch)
return PTR_ERR(cmd);
*cmd = MI_BATCH_BUFFER_END;
wmb();
i915_gem_chipset_flush(batch->vm->i915);
i915_gem_object_unpin_map(batch->obj);
@ -858,7 +863,8 @@ out_request:
I915_MAP_WC);
if (!IS_ERR(cmd)) {
*cmd = MI_BATCH_BUFFER_END;
wmb();
i915_gem_chipset_flush(i915);
i915_gem_object_unpin_map(request[id]->batch->obj);
}

1
drivers/gpu/drm/i915/selftests/i915_live_selftests.h
View File

@ -15,5 +15,6 @@ selftest(objects, i915_gem_object_live_selftests)
selftest(dmabuf, i915_gem_dmabuf_live_selftests)
selftest(coherency, i915_gem_coherency_live_selftests)
selftest(gtt, i915_gem_gtt_live_selftests)
selftest(hugepages, i915_gem_huge_page_live_selftests)
selftest(contexts, i915_gem_context_live_selftests)
selftest(hangcheck, intel_hangcheck_live_selftests)

1
drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
View File

@ -21,3 +21,4 @@ selftest(dmabuf, i915_gem_dmabuf_mock_selftests)
selftest(vma, i915_vma_mock_selftests)
selftest(evict, i915_gem_evict_mock_selftests)
selftest(gtt, i915_gem_gtt_mock_selftests)
selftest(hugepages, i915_gem_huge_page_mock_selftests)

26
drivers/gpu/drm/i915/selftests/intel_hangcheck.c
View File

@ -165,6 +165,7 @@ static int emit_recurse_batch(struct hang *h,
*batch++ = lower_32_bits(vma->node.start);
}
*batch++ = MI_BATCH_BUFFER_END; /* not reached */
i915_gem_chipset_flush(h->i915);
flags = 0;
if (INTEL_GEN(vm->i915) <= 5)
@ -231,7 +232,7 @@ static u32 hws_seqno(const struct hang *h,
static void hang_fini(struct hang *h)
{
*h->batch = MI_BATCH_BUFFER_END;
wmb();
i915_gem_chipset_flush(h->i915);
i915_gem_object_unpin_map(h->obj);
i915_gem_object_put(h->obj);
@ -275,6 +276,8 @@ static int igt_hang_sanitycheck(void *arg)
i915_gem_request_get(rq);
*h.batch = MI_BATCH_BUFFER_END;
i915_gem_chipset_flush(i915);
__i915_add_request(rq, true);
timeout = i915_wait_request(rq,
@ -621,8 +624,11 @@ static int igt_wait_reset(void *arg)
__i915_add_request(rq, true);
if (!wait_for_hang(&h, rq)) {
struct drm_printer p = drm_info_printer(i915->drm.dev);
pr_err("Failed to start request %x, at %x\n",
rq->fence.seqno, hws_seqno(&h, rq));
intel_engine_dump(rq->engine, &p);
i915_reset(i915, 0);
i915_gem_set_wedged(i915);
@ -713,8 +719,12 @@ static int igt_reset_queue(void *arg)
__i915_add_request(rq, true);
if (!wait_for_hang(&h, prev)) {
struct drm_printer p = drm_info_printer(i915->drm.dev);
pr_err("Failed to start request %x, at %x\n",
prev->fence.seqno, hws_seqno(&h, prev));
intel_engine_dump(rq->engine, &p);
i915_gem_request_put(rq);
i915_gem_request_put(prev);
@ -765,7 +775,7 @@ static int igt_reset_queue(void *arg)
pr_info("%s: Completed %d resets\n", engine->name, count);
*h.batch = MI_BATCH_BUFFER_END;
wmb();
i915_gem_chipset_flush(i915);
i915_gem_request_put(prev);
}
@ -815,8 +825,11 @@ static int igt_handle_error(void *arg)
__i915_add_request(rq, true);
if (!wait_for_hang(&h, rq)) {
struct drm_printer p = drm_info_printer(i915->drm.dev);
pr_err("Failed to start request %x, at %x\n",
rq->fence.seqno, hws_seqno(&h, rq));
intel_engine_dump(rq->engine, &p);
i915_reset(i915, 0);
i915_gem_set_wedged(i915);
@ -865,9 +878,16 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
SUBTEST(igt_reset_queue),
SUBTEST(igt_handle_error),
};
int err;
if (!intel_has_gpu_reset(i915))
return 0;
return i915_subtests(tests, i915);
intel_runtime_pm_get(i915);
err = i915_subtests(tests, i915);
intel_runtime_pm_put(i915);
return err;
}

17
drivers/gpu/drm/i915/selftests/mock_gem_device.c
View File

@ -83,6 +83,8 @@ static void mock_device_release(struct drm_device *dev)
kmem_cache_destroy(i915->vmas);
kmem_cache_destroy(i915->objects);
i915_gemfs_fini(i915);
drm_dev_fini(&i915->drm);
put_device(&i915->drm.pdev->dev);
}
@ -146,7 +148,7 @@ struct drm_i915_private *mock_gem_device(void)
dev_set_name(&pdev->dev, "mock");
dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
#if IS_ENABLED(CONFIG_IOMMU_API)
#if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU)
/* hack to disable iommu for the fake device; force identity mapping */
pdev->dev.archdata.iommu = (void *)-1;
#endif
@ -172,6 +174,11 @@ struct drm_i915_private *mock_gem_device(void)
mkwrite_device_info(i915)->gen = -1;
mkwrite_device_info(i915)->page_sizes =
I915_GTT_PAGE_SIZE_4K |
I915_GTT_PAGE_SIZE_64K |
I915_GTT_PAGE_SIZE_2M;
spin_lock_init(&i915->mm.object_stat_lock);
mock_uncore_init(i915);
@ -239,8 +246,16 @@ struct drm_i915_private *mock_gem_device(void)
if (!i915->kernel_context)
goto err_engine;
i915->preempt_context = mock_context(i915, NULL);
if (!i915->preempt_context)
goto err_kernel_context;
WARN_ON(i915_gemfs_init(i915));
return i915;
err_kernel_context:
i915_gem_context_put(i915->kernel_context);
err_engine:
for_each_engine(engine, i915, id)
mock_engine_free(engine);

11
drivers/gpu/drm/i915/selftests/mock_gtt.c
View File

@ -43,7 +43,6 @@ static int mock_bind_ppgtt(struct i915_vma *vma,
u32 flags)
{
GEM_BUG_ON(flags & I915_VMA_GLOBAL_BIND);
vma->pages = vma->obj->mm.pages;
vma->flags |= I915_VMA_LOCAL_BIND;
return 0;
}
@ -84,6 +83,8 @@ mock_ppgtt(struct drm_i915_private *i915,
ppgtt->base.insert_entries = mock_insert_entries;
ppgtt->base.bind_vma = mock_bind_ppgtt;
ppgtt->base.unbind_vma = mock_unbind_ppgtt;
ppgtt->base.set_pages = ppgtt_set_pages;
ppgtt->base.clear_pages = clear_pages;
ppgtt->base.cleanup = mock_cleanup;
return ppgtt;
@ -93,12 +94,6 @@ static int mock_bind_ggtt(struct i915_vma *vma,
enum i915_cache_level cache_level,
u32 flags)
{
int err;
err = i915_get_ggtt_vma_pages(vma);
if (err)
return err;
vma->flags |= I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND;
return 0;
}
@ -124,6 +119,8 @@ void mock_init_ggtt(struct drm_i915_private *i915)
ggtt->base.insert_entries = mock_insert_entries;
ggtt->base.bind_vma = mock_bind_ggtt;
ggtt->base.unbind_vma = mock_unbind_ggtt;
ggtt->base.set_pages = ggtt_set_pages;
ggtt->base.clear_pages = clear_pages;
ggtt->base.cleanup = mock_cleanup;
i915_address_space_init(&ggtt->base, i915, "global");

15
drivers/gpu/drm/i915/selftests/scatterlist.c
View File

@ -189,6 +189,20 @@ static unsigned int random(unsigned long n,
return 1 + (prandom_u32_state(rnd) % 1024);
}
static unsigned int random_page_size_pages(unsigned long n,
unsigned long count,
struct rnd_state *rnd)
{
/* 4K, 64K, 2M */
static unsigned int page_count[] = {
BIT(12) >> PAGE_SHIFT,
BIT(16) >> PAGE_SHIFT,
BIT(21) >> PAGE_SHIFT,
};
return page_count[(prandom_u32_state(rnd) % 3)];
}
static inline bool page_contiguous(struct page *first,
struct page *last,
unsigned long npages)
@ -252,6 +266,7 @@ static const npages_fn_t npages_funcs[] = {
grow,
shrink,
random,
random_page_size_pages,
NULL,
};

2
include/linux/shmem_fs.h
View File

@ -53,6 +53,8 @@ extern struct file *shmem_file_setup(const char *name,
loff_t size, unsigned long flags);
extern struct file *shmem_kernel_file_setup(const char *name, loff_t size,
unsigned long flags);
extern struct file *shmem_file_setup_with_mnt(struct vfsmount *mnt,
const char *name, loff_t size, unsigned long flags);
extern int shmem_zero_setup(struct vm_area_struct *);
extern unsigned long shmem_get_unmapped_area(struct file *, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags);

18
include/uapi/drm/i915_drm.h
View File

@ -397,10 +397,20 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_MIN_EU_IN_POOL 39
#define I915_PARAM_MMAP_GTT_VERSION 40
/* Query whether DRM_I915_GEM_EXECBUFFER2 supports user defined execution
/*
* Query whether DRM_I915_GEM_EXECBUFFER2 supports user defined execution
* priorities and the driver will attempt to execute batches in priority order.
* The param returns a capability bitmask, nonzero implies that the scheduler
* is enabled, with different features present according to the mask.
*
* The initial priority for each batch is supplied by the context and is
* controlled via I915_CONTEXT_PARAM_PRIORITY.
*/
#define I915_PARAM_HAS_SCHEDULER 41
#define I915_SCHEDULER_CAP_ENABLED (1ul << 0)
#define I915_SCHEDULER_CAP_PRIORITY (1ul << 1)
#define I915_SCHEDULER_CAP_PREEMPTION (1ul << 2)
#define I915_PARAM_HUC_STATUS 42
/* Query whether DRM_I915_GEM_EXECBUFFER2 supports the ability to opt-out of
@ -1308,7 +1318,7 @@ struct drm_i915_reg_read {
* be specified
*/
__u64 offset;
#define I915_REG_READ_8B_WA BIT(0)
#define I915_REG_READ_8B_WA (1ul << 0)
__u64 val; /* Return value */
};
@ -1360,6 +1370,10 @@ struct drm_i915_gem_context_param {
#define I915_CONTEXT_PARAM_GTT_SIZE 0x3
#define I915_CONTEXT_PARAM_NO_ERROR_CAPTURE 0x4
#define I915_CONTEXT_PARAM_BANNABLE 0x5
#define I915_CONTEXT_PARAM_PRIORITY 0x6
#define I915_CONTEXT_MAX_USER_PRIORITY 1023 /* inclusive */
#define I915_CONTEXT_DEFAULT_PRIORITY 0
#define I915_CONTEXT_MIN_USER_PRIORITY -1023 /* inclusive */
__u64 value;
};

30
mm/shmem.c
View File

@ -4183,7 +4183,7 @@ static const struct dentry_operations anon_ops = {
.d_dname = simple_dname
};
static struct file *__shmem_file_setup(const char *name, loff_t size,
static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, loff_t size,
unsigned long flags, unsigned int i_flags)
{
struct file *res;
@ -4192,8 +4192,8 @@ static struct file *__shmem_file_setup(const char *name, loff_t size,
struct super_block *sb;
struct qstr this;
if (IS_ERR(shm_mnt))
return ERR_CAST(shm_mnt);
if (IS_ERR(mnt))
return ERR_CAST(mnt);
if (size < 0 || size > MAX_LFS_FILESIZE)
return ERR_PTR(-EINVAL);
@ -4205,8 +4205,8 @@ static struct file *__shmem_file_setup(const char *name, loff_t size,
this.name = name;
this.len = strlen(name);
this.hash = 0; /* will go */
sb = shm_mnt->mnt_sb;
path.mnt = mntget(shm_mnt);
sb = mnt->mnt_sb;
path.mnt = mntget(mnt);
path.dentry = d_alloc_pseudo(sb, &this);
if (!path.dentry)
goto put_memory;
@ -4251,7 +4251,7 @@ put_path:
*/
struct file *shmem_kernel_file_setup(const char *name, loff_t size, unsigned long flags)
{
return __shmem_file_setup(name, size, flags, S_PRIVATE);
return __shmem_file_setup(shm_mnt, name, size, flags, S_PRIVATE);
}
/**
@ -4262,10 +4262,24 @@ struct file *shmem_kernel_file_setup(const char *name, loff_t size, unsigned lon
*/
struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags)
{
return __shmem_file_setup(name, size, flags, 0);
return __shmem_file_setup(shm_mnt, name, size, flags, 0);
}
EXPORT_SYMBOL_GPL(shmem_file_setup);
/**
* shmem_file_setup_with_mnt - get an unlinked file living in tmpfs
* @mnt: the tmpfs mount where the file will be created
* @name: name for dentry (to be seen in /proc/<pid>/maps
* @size: size to be set for the file
* @flags: VM_NORESERVE suppresses pre-accounting of the entire object size
*/
struct file *shmem_file_setup_with_mnt(struct vfsmount *mnt, const char *name,
loff_t size, unsigned long flags)
{
return __shmem_file_setup(mnt, name, size, flags, 0);
}
EXPORT_SYMBOL_GPL(shmem_file_setup_with_mnt);
/**
* shmem_zero_setup - setup a shared anonymous mapping
* @vma: the vma to be mmapped is prepared by do_mmap_pgoff
@ -4281,7 +4295,7 @@ int shmem_zero_setup(struct vm_area_struct *vma)
* accessible to the user through its mapping, use S_PRIVATE flag to
* bypass file security, in the same way as shmem_kernel_file_setup().
*/
file = __shmem_file_setup("dev/zero", size, vma->vm_flags, S_PRIVATE);
file = shmem_kernel_file_setup("dev/zero", size, vma->vm_flags);
if (IS_ERR(file))
return PTR_ERR(file);