diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_engine_cs.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 2 |
5 files changed, 31 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index a9c8c66bb525..33453d56c386 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1841,6 +1841,8 @@ static int i915_drm_resume_early(struct drm_device *dev) else intel_display_set_init_power(dev_priv, true); + intel_engines_sanitize(dev_priv); + enable_rpm_wakeref_asserts(dev_priv); out: diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 5155e458b11e..822abf444378 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4990,8 +4990,7 @@ void __i915_gem_object_release_unless_active(struct drm_i915_gem_object *obj) void i915_gem_sanitize(struct drm_i915_private *i915) { - struct intel_engine_cs *engine; - enum intel_engine_id id; + int err; GEM_TRACE("\n"); @@ -5017,14 +5016,11 @@ void i915_gem_sanitize(struct drm_i915_private *i915) * it may impact the display and we are uncertain about the stability * of the reset, so this could be applied to even earlier gen. */ + err = -ENODEV; if (INTEL_GEN(i915) >= 5 && intel_has_gpu_reset(i915)) - WARN_ON(intel_gpu_reset(i915, ALL_ENGINES)); - - /* Reset the submission backend after resume as well as the GPU reset */ - for_each_engine(engine, i915, id) { - if (engine->reset.reset) - engine->reset.reset(engine, NULL); - } + err = WARN_ON(intel_gpu_reset(i915, ALL_ENGINES)); + if (!err) + intel_engines_sanitize(i915); intel_uncore_forcewake_put(i915, FORCEWAKE_ALL); intel_runtime_pm_put(i915); diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index 13bb8c7d2621..32bf3a408d46 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -1078,6 +1078,28 @@ void intel_engines_reset_default_submission(struct drm_i915_private *i915) } /** + * intel_engines_sanitize: called after the GPU has lost power + * @i915: the i915 device + * + * Anytime we reset the GPU, either with an explicit GPU reset or through a + * PCI power cycle, the GPU loses state and we must reset our state tracking + * to match. Note that calling intel_engines_sanitize() if the GPU has not + * been reset results in much confusion! + */ +void intel_engines_sanitize(struct drm_i915_private *i915) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + + GEM_TRACE("\n"); + + for_each_engine(engine, i915, id) { + if (engine->reset.reset) + engine->reset.reset(engine, NULL); + } +} + +/** * intel_engines_park: called when the GT is transitioning from busy->idle * @i915: the i915 device * diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 6a937a896651..4dae23885006 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -564,14 +564,6 @@ static void reset_ring(struct intel_engine_cs *engine, struct i915_request *rq) GEM_TRACE("%s seqno=%x\n", engine->name, rq ? rq->global_seqno : 0); /* - * 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 diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 4003f3ebe3d1..a0bc7a8222b4 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -1052,6 +1052,8 @@ gen8_emit_ggtt_write(u32 *cs, u32 value, u32 gtt_offset) return cs; } +void intel_engines_sanitize(struct drm_i915_private *i915); + bool intel_engine_is_idle(struct intel_engine_cs *engine); bool intel_engines_are_idle(struct drm_i915_private *dev_priv); |