[Intel-gfx] [PATCH v2 1/3] drm/i915: use pointer to i915 instead of rpm in wakeref
Luca Coelho
luciano.coelho at intel.com
Wed May 24 09:05:19 UTC 2023
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.
Cc: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Signed-off-by: Luca Coelho <luciano.coelho at intel.com>
---
drivers/gpu/drm/i915/gt/intel_engine_pm.c | 4 +---
drivers/gpu/drm/i915/gt/intel_gt_pm.c | 2 +-
drivers/gpu/drm/i915/intel_runtime_pm.c | 2 +-
drivers/gpu/drm/i915/intel_wakeref.c | 20 +++++++++++---------
drivers/gpu/drm/i915/intel_wakeref.h | 12 ++++++------
5 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c
index ee531a5c142c..21af0ec52223 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c
@@ -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);
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index c2e69bafd02b..5a942af0a14e 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -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(>->wakeref, >->i915->runtime_pm, &wf_ops);
+ intel_wakeref_init(>->wakeref, gt->i915, &wf_ops);
seqcount_mutex_init(>->stats.lock, >->wakeref.mutex);
}
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index cf5122299b6b..6d8e5e5c0cba 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -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);
}
diff --git a/drivers/gpu/drm/i915/intel_wakeref.c b/drivers/gpu/drm/i915/intel_wakeref.c
index dfd87d082218..40aafe676017 100644
--- a/drivers/gpu/drm/i915/intel_wakeref.c
+++ b/drivers/gpu/drm/i915/intel_wakeref.c
@@ -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);
diff --git a/drivers/gpu/drm/i915/intel_wakeref.h b/drivers/gpu/drm/i915/intel_wakeref.h
index 0b6b4852ab23..ec881b097368 100644
--- a/drivers/gpu/drm/i915/intel_wakeref.h
+++ b/drivers/gpu/drm/i915/intel_wakeref.h
@@ -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 */
--
2.39.2
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