diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_runtime_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 860b51b56a92..1a47ecfd3fd8 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -66,7 +66,7 @@ static intel_wakeref_t track_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm) { if (!rpm->available || rpm->no_wakeref_tracking) - return -1; + return INTEL_WAKEREF_DEF; return intel_ref_tracker_alloc(&rpm->debug); } @@ -114,7 +114,7 @@ static void init_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm) static intel_wakeref_t track_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm) { - return -1; + return INTEL_WAKEREF_DEF; } static void untrack_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm, @@ -246,8 +246,11 @@ static intel_wakeref_t __intel_runtime_pm_get_if_active(struct intel_runtime_pm * function, since the power state is undefined. This applies * atm to the late/early system suspend/resume handlers. */ - if (pm_runtime_get_if_active(rpm->kdev, ignore_usecount) <= 0) - return 0; + if ((ignore_usecount && + pm_runtime_get_if_active(rpm->kdev) <= 0) || + (!ignore_usecount && + pm_runtime_get_if_in_use(rpm->kdev) <= 0)) + return NULL; } intel_runtime_pm_acquire(rpm, true); @@ -269,15 +272,11 @@ intel_wakeref_t intel_runtime_pm_get_if_active(struct intel_runtime_pm *rpm) * intel_runtime_pm_get_noresume - grab a runtime pm reference * @rpm: the intel_runtime_pm structure * - * This function grabs a device-level runtime pm reference (mostly used for GEM - * code to ensure the GTT or GT is on). + * This function grabs a device-level runtime pm reference. * - * It will _not_ power up the device but instead only check that it's powered - * on. Therefore it is only valid to call this functions from contexts where - * the device is known to be powered up and where trying to power it up would - * result in hilarity and deadlocks. That pretty much means only the system - * suspend/resume code where this is used to grab runtime pm references for - * delayed setup down in work items. + * It will _not_ resume the device but instead only get an extra wakeref. + * Therefore it is only valid to call this functions from contexts where + * the device is known to be active and with another wakeref previously hold. * * Any runtime pm reference obtained by this function must have a symmetric * call to intel_runtime_pm_put() to release the reference again. @@ -286,7 +285,7 @@ intel_wakeref_t intel_runtime_pm_get_if_active(struct intel_runtime_pm *rpm) */ intel_wakeref_t intel_runtime_pm_get_noresume(struct intel_runtime_pm *rpm) { - assert_rpm_wakelock_held(rpm); + assert_rpm_raw_wakeref_held(rpm); pm_runtime_get_noresume(rpm->kdev); intel_runtime_pm_acquire(rpm, true); @@ -337,7 +336,7 @@ intel_runtime_pm_put_raw(struct intel_runtime_pm *rpm, intel_wakeref_t wref) */ void intel_runtime_pm_put_unchecked(struct intel_runtime_pm *rpm) { - __intel_runtime_pm_put(rpm, -1, true); + __intel_runtime_pm_put(rpm, INTEL_WAKEREF_DEF, true); } #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM) |