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drm/i915: use pointer to i915 instead of rpm in wakeref 

Currently a pointer to an intel_runtime_pm structure is stored in the
wake reference structures so the runtime data can be accessed.  We can
save the entire device information (drm_i915_private) instead, since
we'll need to reference the new workqueue we'll add in subsequent
patches.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ec0eb5149120d04f3d9870d7671ef10103e6fc29.1686231190.git.jani.nikula@intel.com
This commit is contained in:
Luca Coelho 2023-06-08 16:35:44 +03:00 committed by Jani Nikula
parent 3fecd469da
commit 8d208a5eed
5 changed files with 20 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/gt/intel_engine_pm.c
View File

@ -296,9 +296,7 @@ static const struct intel_wakeref_ops wf_ops = {
void intel_engine_init__pm(struct intel_engine_cs *engine)
{
struct intel_runtime_pm *rpm = engine->uncore->rpm;
intel_wakeref_init(&engine->wakeref, rpm, &wf_ops);
intel_wakeref_init(&engine->wakeref, engine->i915, &wf_ops);
intel_engine_init_heartbeat(engine);
intel_gsc_idle_msg_enable(engine);

2
drivers/gpu/drm/i915/gt/intel_gt_pm.c
View File

@ -137,7 +137,7 @@ void intel_gt_pm_init_early(struct intel_gt *gt)
* runtime_pm is per-device rather than per-tile, so this is still the
* correct structure.
*/
intel_wakeref_init(&gt->wakeref, &gt->i915->runtime_pm, &wf_ops);
intel_wakeref_init(&gt->wakeref, gt->i915, &wf_ops);
seqcount_mutex_init(&gt->stats.lock, &gt->wakeref.mutex);
}

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

@ -658,5 +658,5 @@ void intel_runtime_pm_init_early(struct intel_runtime_pm *rpm)
init_intel_runtime_pm_wakeref(rpm);
INIT_LIST_HEAD(&rpm->lmem_userfault_list);
spin_lock_init(&rpm->lmem_userfault_lock);
intel_wakeref_auto_init(&rpm->userfault_wakeref, rpm);
intel_wakeref_auto_init(&rpm->userfault_wakeref, i915);
}

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

@ -8,17 +8,18 @@
#include "intel_runtime_pm.h"
#include "intel_wakeref.h"
#include "i915_drv.h"
static void rpm_get(struct intel_wakeref *wf)
{
wf->wakeref = intel_runtime_pm_get(wf->rpm);
wf->wakeref = intel_runtime_pm_get(&wf->i915->runtime_pm);
}
static void rpm_put(struct intel_wakeref *wf)
{
intel_wakeref_t wakeref = fetch_and_zero(&wf->wakeref);
intel_runtime_pm_put(wf->rpm, wakeref);
intel_runtime_pm_put(&wf->i915->runtime_pm, wakeref);
INTEL_WAKEREF_BUG_ON(!wakeref);
}
@ -94,11 +95,11 @@ static void __intel_wakeref_put_work(struct work_struct *wrk)
}
void __intel_wakeref_init(struct intel_wakeref *wf,
struct intel_runtime_pm *rpm,
struct drm_i915_private *i915,
const struct intel_wakeref_ops *ops,
struct intel_wakeref_lockclass *key)
{
wf->rpm = rpm;
wf->i915 = i915;
wf->ops = ops;
__mutex_init(&wf->mutex, "wakeref.mutex", &key->mutex);
@ -137,17 +138,17 @@ static void wakeref_auto_timeout(struct timer_list *t)
wakeref = fetch_and_zero(&wf->wakeref);
spin_unlock_irqrestore(&wf->lock, flags);
intel_runtime_pm_put(wf->rpm, wakeref);
intel_runtime_pm_put(&wf->i915->runtime_pm, wakeref);
}
void intel_wakeref_auto_init(struct intel_wakeref_auto *wf,
struct intel_runtime_pm *rpm)
struct drm_i915_private *i915)
{
spin_lock_init(&wf->lock);
timer_setup(&wf->timer, wakeref_auto_timeout, 0);
refcount_set(&wf->count, 0);
wf->wakeref = 0;
wf->rpm = rpm;
wf->i915 = i915;
}
void intel_wakeref_auto(struct intel_wakeref_auto *wf, unsigned long timeout)
@ -161,13 +162,14 @@ void intel_wakeref_auto(struct intel_wakeref_auto *wf, unsigned long timeout)
}
/* Our mission is that we only extend an already active wakeref */
assert_rpm_wakelock_held(wf->rpm);
assert_rpm_wakelock_held(&wf->i915->runtime_pm);
if (!refcount_inc_not_zero(&wf->count)) {
spin_lock_irqsave(&wf->lock, flags);
if (!refcount_inc_not_zero(&wf->count)) {
INTEL_WAKEREF_BUG_ON(wf->wakeref);
wf->wakeref = intel_runtime_pm_get_if_in_use(wf->rpm);
wf->wakeref =
intel_runtime_pm_get_if_in_use(&wf->i915->runtime_pm);
refcount_set(&wf->count, 1);
}
spin_unlock_irqrestore(&wf->lock, flags);

12
drivers/gpu/drm/i915/intel_wakeref.h
View File

@ -39,7 +39,7 @@ struct intel_wakeref {
intel_wakeref_t wakeref;
struct intel_runtime_pm *rpm;
struct drm_i915_private *i915;
const struct intel_wakeref_ops *ops;
struct delayed_work work;
@ -51,13 +51,13 @@ struct intel_wakeref_lockclass {
};
void __intel_wakeref_init(struct intel_wakeref *wf,
struct intel_runtime_pm *rpm,
struct drm_i915_private *i915,
const struct intel_wakeref_ops *ops,
struct intel_wakeref_lockclass *key);
#define intel_wakeref_init(wf, rpm, ops) do { \
#define intel_wakeref_init(wf, i915, ops) do { \
static struct intel_wakeref_lockclass __key; \
\
__intel_wakeref_init((wf), (rpm), (ops), &__key); \
__intel_wakeref_init((wf), (i915), (ops), &__key); \
} while (0)
int __intel_wakeref_get_first(struct intel_wakeref *wf);
@ -262,7 +262,7 @@ __intel_wakeref_defer_park(struct intel_wakeref *wf)
int intel_wakeref_wait_for_idle(struct intel_wakeref *wf);
struct intel_wakeref_auto {
struct intel_runtime_pm *rpm;
struct drm_i915_private *i915;
struct timer_list timer;
intel_wakeref_t wakeref;
spinlock_t lock;
@ -287,7 +287,7 @@ struct intel_wakeref_auto {
void intel_wakeref_auto(struct intel_wakeref_auto *wf, unsigned long timeout);
void intel_wakeref_auto_init(struct intel_wakeref_auto *wf,
struct intel_runtime_pm *rpm);
struct drm_i915_private *i915);
void intel_wakeref_auto_fini(struct intel_wakeref_auto *wf);
#endif /* INTEL_WAKEREF_H */