diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_context.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_context_types.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_pm.c | 38 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_request.h | 3 |
4 files changed, 7 insertions, 38 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_context.h b/drivers/gpu/drm/i915/gt/intel_context.h index 246c37d72cd7..d8c74bbf9aae 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.h +++ b/drivers/gpu/drm/i915/gt/intel_context.h @@ -211,7 +211,8 @@ static inline void intel_context_enter(struct intel_context *ce) static inline void intel_context_mark_active(struct intel_context *ce) { - lockdep_assert_held(&ce->timeline->mutex); + lockdep_assert(lockdep_is_held(&ce->timeline->mutex) || + test_bit(CONTEXT_IS_PARKING, &ce->flags)); ++ce->active_count; } diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h index 9e0177dc5484..30cd81ad8911 100644 --- a/drivers/gpu/drm/i915/gt/intel_context_types.h +++ b/drivers/gpu/drm/i915/gt/intel_context_types.h @@ -118,6 +118,7 @@ struct intel_context { #define CONTEXT_LRCA_DIRTY 9 #define CONTEXT_GUC_INIT 10 #define CONTEXT_PERMA_PIN 11 +#define CONTEXT_IS_PARKING 12 struct { u64 timeout_us; diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c index a1334b48dde7..a8a2ad44b7e3 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c @@ -80,39 +80,6 @@ static int __engine_unpark(struct intel_wakeref *wf) return 0; } -#if IS_ENABLED(CONFIG_LOCKDEP) - -static unsigned long __timeline_mark_lock(struct intel_context *ce) -{ - unsigned long flags; - - local_irq_save(flags); - mutex_acquire(&ce->timeline->mutex.dep_map, 2, 0, _THIS_IP_); - - return flags; -} - -static void __timeline_mark_unlock(struct intel_context *ce, - unsigned long flags) -{ - mutex_release(&ce->timeline->mutex.dep_map, _THIS_IP_); - local_irq_restore(flags); -} - -#else - -static unsigned long __timeline_mark_lock(struct intel_context *ce) -{ - return 0; -} - -static void __timeline_mark_unlock(struct intel_context *ce, - unsigned long flags) -{ -} - -#endif /* !IS_ENABLED(CONFIG_LOCKDEP) */ - static void duration(struct dma_fence *fence, struct dma_fence_cb *cb) { struct i915_request *rq = to_request(fence); @@ -159,7 +126,6 @@ static bool switch_to_kernel_context(struct intel_engine_cs *engine) { struct intel_context *ce = engine->kernel_context; struct i915_request *rq; - unsigned long flags; bool result = true; /* @@ -214,7 +180,7 @@ static bool switch_to_kernel_context(struct intel_engine_cs *engine) * engine->wakeref.count, we may see the request completion and retire * it causing an underflow of the engine->wakeref. */ - flags = __timeline_mark_lock(ce); + set_bit(CONTEXT_IS_PARKING, &ce->flags); GEM_BUG_ON(atomic_read(&ce->timeline->active_count) < 0); rq = __i915_request_create(ce, GFP_NOWAIT); @@ -246,7 +212,7 @@ static bool switch_to_kernel_context(struct intel_engine_cs *engine) result = false; out_unlock: - __timeline_mark_unlock(ce, flags); + clear_bit(CONTEXT_IS_PARKING, &ce->flags); return result; } diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h index 0ed01979491b..ce7714210697 100644 --- a/drivers/gpu/drm/i915/i915_request.h +++ b/drivers/gpu/drm/i915/i915_request.h @@ -657,7 +657,8 @@ i915_request_timeline(const struct i915_request *rq) { /* Valid only while the request is being constructed (or retired). */ return rcu_dereference_protected(rq->timeline, - lockdep_is_held(&rcu_access_pointer(rq->timeline)->mutex)); + lockdep_is_held(&rcu_access_pointer(rq->timeline)->mutex) || + test_bit(CONTEXT_IS_PARKING, &rq->context->flags)); } static inline struct i915_gem_context * |