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drm/i915: Split the ringbuffers from the rings (3/3) 

Manual cleanup after the previous Coccinelle script.

Yes, I could write another Coccinelle script to do this but I
don't want labor-replacing robots making an honest programmer's
work obsolete (also, I'm lazy).

Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Oscar Mateo 2014-05-22 14:13:36 +01:00 committed by Daniel Vetter
parent ee1b1e5ef3
commit 93b0a4e0b2
4 changed files with 72 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/i915/i915_dma.c
View File

@ -141,6 +141,7 @@ void i915_kernel_lost_context(struct drm_device * dev)
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_master_private *master_priv;
struct intel_engine_cs *ring = LP_RING(dev_priv);
struct intel_ringbuffer *ringbuf = ring->buffer;
/*
* We should never lose context on the ring with modesetting
@ -149,17 +150,17 @@ void i915_kernel_lost_context(struct drm_device * dev)
if (drm_core_check_feature(dev, DRIVER_MODESET))
return;
ring->buffer->head = I915_READ_HEAD(ring) & HEAD_ADDR;
ring->buffer->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
ring->buffer->space = ring->buffer->head - (ring->buffer->tail + I915_RING_FREE_SPACE);
if (ring->buffer->space < 0)
ring->buffer->space += ring->buffer->size;
ringbuf->head = I915_READ_HEAD(ring) & HEAD_ADDR;
ringbuf->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
ringbuf->space = ringbuf->head - (ringbuf->tail + I915_RING_FREE_SPACE);
if (ringbuf->space < 0)
ringbuf->space += ringbuf->size;
if (!dev->primary->master)
return;
master_priv = dev->primary->master->driver_priv;
if (ring->buffer->head == ring->buffer->tail && master_priv->sarea_priv)
if (ringbuf->head == ringbuf->tail && master_priv->sarea_priv)
master_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
}

2
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1219,7 +1219,7 @@ static void ironlake_rps_change_irq_handler(struct drm_device *dev)
static void notify_ring(struct drm_device *dev,
struct intel_engine_cs *ring)
{
if (ring->buffer->obj == NULL)
if (!intel_ring_initialized(ring))
return;
trace_i915_gem_request_complete(ring);

109
drivers/gpu/drm/i915/intel_ringbuffer.c
View File

@ -50,7 +50,8 @@ static inline int __ring_space(int head, int tail, int size)
static inline int ring_space(struct intel_engine_cs *ring)
{
return __ring_space(ring->buffer->head & HEAD_ADDR, ring->buffer->tail, ring->buffer->size);
struct intel_ringbuffer *ringbuf = ring->buffer;
return __ring_space(ringbuf->head & HEAD_ADDR, ringbuf->tail, ringbuf->size);
}
static bool intel_ring_stopped(struct intel_engine_cs *ring)
@ -61,10 +62,11 @@ static bool intel_ring_stopped(struct intel_engine_cs *ring)
void __intel_ring_advance(struct intel_engine_cs *ring)
{
ring->buffer->tail &= ring->buffer->size - 1;
struct intel_ringbuffer *ringbuf = ring->buffer;
ringbuf->tail &= ringbuf->size - 1;
if (intel_ring_stopped(ring))
return;
ring->write_tail(ring, ring->buffer->tail);
ring->write_tail(ring, ringbuf->tail);
}
static int
@ -481,7 +483,8 @@ static int init_ring_common(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj = ring->buffer->obj;
struct intel_ringbuffer *ringbuf = ring->buffer;
struct drm_i915_gem_object *obj = ringbuf->obj;
int ret = 0;
gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
@ -520,7 +523,7 @@ static int init_ring_common(struct intel_engine_cs *ring)
* register values. */
I915_WRITE_START(ring, i915_gem_obj_ggtt_offset(obj));
I915_WRITE_CTL(ring,
((ring->buffer->size - PAGE_SIZE) & RING_NR_PAGES)
((ringbuf->size - PAGE_SIZE) & RING_NR_PAGES)
| RING_VALID);
/* If the head is still not zero, the ring is dead */
@ -540,10 +543,10 @@ static int init_ring_common(struct intel_engine_cs *ring)
if (!drm_core_check_feature(ring->dev, DRIVER_MODESET))
i915_kernel_lost_context(ring->dev);
else {
ring->buffer->head = I915_READ_HEAD(ring);
ring->buffer->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
ring->buffer->space = ring_space(ring);
ring->buffer->last_retired_head = -1;
ringbuf->head = I915_READ_HEAD(ring);
ringbuf->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
ringbuf->space = ring_space(ring);
ringbuf->last_retired_head = -1;
}
memset(&ring->hangcheck, 0, sizeof(ring->hangcheck));
@ -1379,17 +1382,18 @@ static int allocate_ring_buffer(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_ringbuffer *ringbuf = ring->buffer;
struct drm_i915_gem_object *obj;
int ret;
if (ring->buffer->obj)
if (intel_ring_initialized(ring))
return 0;
obj = NULL;
if (!HAS_LLC(dev))
obj = i915_gem_object_create_stolen(dev, ring->buffer->size);
obj = i915_gem_object_create_stolen(dev, ringbuf->size);
if (obj == NULL)
obj = i915_gem_alloc_object(dev, ring->buffer->size);
obj = i915_gem_alloc_object(dev, ringbuf->size);
if (obj == NULL)
return -ENOMEM;
@ -1401,15 +1405,15 @@ static int allocate_ring_buffer(struct intel_engine_cs *ring)
if (ret)
goto err_unpin;
ring->buffer->virtual_start =
ringbuf->virtual_start =
ioremap_wc(dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj),
ring->buffer->size);
if (ring->buffer->virtual_start == NULL) {
ringbuf->size);
if (ringbuf->virtual_start == NULL) {
ret = -EINVAL;
goto err_unpin;
}
ring->buffer->obj = obj;
ringbuf->obj = obj;
return 0;
err_unpin:
@ -1435,7 +1439,7 @@ static int intel_init_ring_buffer(struct drm_device *dev,
ring->dev = dev;
INIT_LIST_HEAD(&ring->active_list);
INIT_LIST_HEAD(&ring->request_list);
ring->buffer->size = 32 * PAGE_SIZE;
ringbuf->size = 32 * PAGE_SIZE;
memset(ring->semaphore.sync_seqno, 0, sizeof(ring->semaphore.sync_seqno));
init_waitqueue_head(&ring->irq_queue);
@ -1461,9 +1465,9 @@ static int intel_init_ring_buffer(struct drm_device *dev,
* the TAIL pointer points to within the last 2 cachelines
* of the buffer.
*/
ring->buffer->effective_size = ring->buffer->size;
ringbuf->effective_size = ringbuf->size;
if (IS_I830(dev) || IS_845G(dev))
ring->buffer->effective_size -= 2 * CACHELINE_BYTES;
ringbuf->effective_size -= 2 * CACHELINE_BYTES;
ret = i915_cmd_parser_init_ring(ring);
if (ret)
@ -1484,18 +1488,19 @@ error:
void intel_cleanup_ring_buffer(struct intel_engine_cs *ring)
{
struct drm_i915_private *dev_priv = to_i915(ring->dev);
struct intel_ringbuffer *ringbuf = ring->buffer;
if (ring->buffer->obj == NULL)
if (!intel_ring_initialized(ring))
return;
intel_stop_ring_buffer(ring);
WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0);
iounmap(ring->buffer->virtual_start);
iounmap(ringbuf->virtual_start);
i915_gem_object_ggtt_unpin(ring->buffer->obj);
drm_gem_object_unreference(&ring->buffer->obj->base);
ring->buffer->obj = NULL;
i915_gem_object_ggtt_unpin(ringbuf->obj);
drm_gem_object_unreference(&ringbuf->obj->base);
ringbuf->obj = NULL;
ring->preallocated_lazy_request = NULL;
ring->outstanding_lazy_seqno = 0;
@ -1506,27 +1511,28 @@ void intel_cleanup_ring_buffer(struct intel_engine_cs *ring)
i915_cmd_parser_fini_ring(ring);
kfree(ring->buffer);
kfree(ringbuf);
ring->buffer = NULL;
}
static int intel_ring_wait_request(struct intel_engine_cs *ring, int n)
{
struct intel_ringbuffer *ringbuf = ring->buffer;
struct drm_i915_gem_request *request;
u32 seqno = 0;
int ret;
if (ring->buffer->last_retired_head != -1) {
ring->buffer->head = ring->buffer->last_retired_head;
ring->buffer->last_retired_head = -1;
if (ringbuf->last_retired_head != -1) {
ringbuf->head = ringbuf->last_retired_head;
ringbuf->last_retired_head = -1;
ring->buffer->space = ring_space(ring);
if (ring->buffer->space >= n)
ringbuf->space = ring_space(ring);
if (ringbuf->space >= n)
return 0;
}
list_for_each_entry(request, &ring->request_list, list) {
if (__ring_space(request->tail, ring->buffer->tail, ring->buffer->size) >= n) {
if (__ring_space(request->tail, ringbuf->tail, ringbuf->size) >= n) {
seqno = request->seqno;
break;
}
@ -1540,10 +1546,10 @@ static int intel_ring_wait_request(struct intel_engine_cs *ring, int n)
return ret;
i915_gem_retire_requests_ring(ring);
ring->buffer->head = ring->buffer->last_retired_head;
ring->buffer->last_retired_head = -1;
ringbuf->head = ringbuf->last_retired_head;
ringbuf->last_retired_head = -1;
ring->buffer->space = ring_space(ring);
ringbuf->space = ring_space(ring);
return 0;
}
@ -1551,6 +1557,7 @@ static int ring_wait_for_space(struct intel_engine_cs *ring, int n)
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_ringbuffer *ringbuf = ring->buffer;
unsigned long end;
int ret;
@ -1570,9 +1577,9 @@ static int ring_wait_for_space(struct intel_engine_cs *ring, int n)
trace_i915_ring_wait_begin(ring);
do {
ring->buffer->head = I915_READ_HEAD(ring);
ring->buffer->space = ring_space(ring);
if (ring->buffer->space >= n) {
ringbuf->head = I915_READ_HEAD(ring);
ringbuf->space = ring_space(ring);
if (ringbuf->space >= n) {
ret = 0;
break;
}
@ -1608,21 +1615,22 @@ static int ring_wait_for_space(struct intel_engine_cs *ring, int n)
static int intel_wrap_ring_buffer(struct intel_engine_cs *ring)
{
uint32_t __iomem *virt;
int rem = ring->buffer->size - ring->buffer->tail;
struct intel_ringbuffer *ringbuf = ring->buffer;
int rem = ringbuf->size - ringbuf->tail;
if (ring->buffer->space < rem) {
if (ringbuf->space < rem) {
int ret = ring_wait_for_space(ring, rem);
if (ret)
return ret;
}
virt = ring->buffer->virtual_start + ring->buffer->tail;
virt = ringbuf->virtual_start + ringbuf->tail;
rem /= 4;
while (rem--)
iowrite32(MI_NOOP, virt++);
ring->buffer->tail = 0;
ring->buffer->space = ring_space(ring);
ringbuf->tail = 0;
ringbuf->space = ring_space(ring);
return 0;
}
@ -1672,15 +1680,16 @@ intel_ring_alloc_seqno(struct intel_engine_cs *ring)
static int __intel_ring_prepare(struct intel_engine_cs *ring,
int bytes)
{
struct intel_ringbuffer *ringbuf = ring->buffer;
int ret;
if (unlikely(ring->buffer->tail + bytes > ring->buffer->effective_size)) {
if (unlikely(ringbuf->tail + bytes > ringbuf->effective_size)) {
ret = intel_wrap_ring_buffer(ring);
if (unlikely(ret))
return ret;
}
if (unlikely(ring->buffer->space < bytes)) {
if (unlikely(ringbuf->space < bytes)) {
ret = ring_wait_for_space(ring, bytes);
if (unlikely(ret))
return ret;
@ -2094,13 +2103,13 @@ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
INIT_LIST_HEAD(&ring->active_list);
INIT_LIST_HEAD(&ring->request_list);
ring->buffer->size = size;
ring->buffer->effective_size = ring->buffer->size;
ringbuf->size = size;
ringbuf->effective_size = ringbuf->size;
if (IS_I830(ring->dev) || IS_845G(ring->dev))
ring->buffer->effective_size -= 2 * CACHELINE_BYTES;
ringbuf->effective_size -= 2 * CACHELINE_BYTES;
ring->buffer->virtual_start = ioremap_wc(start, size);
if (ring->buffer->virtual_start == NULL) {
ringbuf->virtual_start = ioremap_wc(start, size);
if (ringbuf->virtual_start == NULL) {
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");
ret = -ENOMEM;
@ -2116,7 +2125,7 @@ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
return 0;
err_vstart:
iounmap(ring->buffer->virtual_start);
iounmap(ringbuf->virtual_start);
err_ringbuf:
kfree(ringbuf);
ring->buffer = NULL;

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

@ -293,12 +293,14 @@ int __must_check intel_ring_cacheline_align(struct intel_engine_cs *ring);
static inline void intel_ring_emit(struct intel_engine_cs *ring,
u32 data)
{
iowrite32(data, ring->buffer->virtual_start + ring->buffer->tail);
ring->buffer->tail += 4;
struct intel_ringbuffer *ringbuf = ring->buffer;
iowrite32(data, ringbuf->virtual_start + ringbuf->tail);
ringbuf->tail += 4;
}
static inline void intel_ring_advance(struct intel_engine_cs *ring)
{
ring->buffer->tail &= ring->buffer->size - 1;
struct intel_ringbuffer *ringbuf = ring->buffer;
ringbuf->tail &= ringbuf->size - 1;
}
void __intel_ring_advance(struct intel_engine_cs *ring);