diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_request.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index e1dbb544046f..5c2c93cbab12 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -206,7 +206,8 @@ static int reset_all_global_seqno(struct drm_i915_private *i915, u32 seqno) /* Carefully retire all requests without writing to the rings */ ret = i915_gem_wait_for_idle(i915, I915_WAIT_INTERRUPTIBLE | - I915_WAIT_LOCKED); + I915_WAIT_LOCKED, + MAX_SCHEDULE_TIMEOUT); if (ret) return ret; @@ -503,7 +504,7 @@ static void move_to_timeline(struct i915_request *request, GEM_BUG_ON(request->timeline == &request->engine->timeline); lockdep_assert_held(&request->engine->timeline.lock); - spin_lock_nested(&request->timeline->lock, SINGLE_DEPTH_NESTING); + spin_lock(&request->timeline->lock); list_move_tail(&request->link, &timeline->requests); spin_unlock(&request->timeline->lock); } @@ -735,7 +736,8 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx) /* Ratelimit ourselves to prevent oom from malicious clients */ ret = i915_gem_wait_for_idle(i915, I915_WAIT_LOCKED | - I915_WAIT_INTERRUPTIBLE); + I915_WAIT_INTERRUPTIBLE, + MAX_SCHEDULE_TIMEOUT); if (ret) goto err_unreserve; @@ -1013,6 +1015,27 @@ i915_request_await_object(struct i915_request *to, return ret; } +void i915_request_skip(struct i915_request *rq, int error) +{ + void *vaddr = rq->ring->vaddr; + u32 head; + + GEM_BUG_ON(!IS_ERR_VALUE((long)error)); + dma_fence_set_error(&rq->fence, error); + + /* + * As this request likely depends on state from the lost + * context, clear out all the user operations leaving the + * breadcrumb at the end (so we get the fence notifications). + */ + head = rq->infix; + if (rq->postfix < head) { + memset(vaddr + head, 0, rq->ring->size - head); + head = 0; + } + memset(vaddr + head, 0, rq->postfix - head); +} + /* * NB: This function is not allowed to fail. Doing so would mean the the * request is not being tracked for completion but the work itself is @@ -1196,7 +1219,7 @@ static bool __i915_spin_request(const struct i915_request *rq, * takes to sleep on a request, on the order of a microsecond. */ - irq = atomic_read(&engine->irq_count); + irq = READ_ONCE(engine->breadcrumbs.irq_count); timeout_us += local_clock_us(&cpu); do { if (i915_seqno_passed(intel_engine_get_seqno(engine), seqno)) @@ -1208,7 +1231,7 @@ static bool __i915_spin_request(const struct i915_request *rq, * assume we won't see one in the near future but require * the engine->seqno_barrier() to fixup coherency. */ - if (atomic_read(&engine->irq_count) != irq) + if (READ_ONCE(engine->breadcrumbs.irq_count) != irq) break; if (signal_pending_state(state, current)) @@ -1285,7 +1308,7 @@ long i915_request_wait(struct i915_request *rq, if (flags & I915_WAIT_LOCKED) add_wait_queue(errq, &reset); - intel_wait_init(&wait, rq); + intel_wait_init(&wait); restart: do { |