From: Oscar Mateo Date: Thu, 24 Jul 2014 16:04:43 +0000 (+0100) Subject: drm/i915/bdw: Make sure error capture keeps working with Execlists X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9075e52face677b87c6bf08d8ea1a960d48d085c;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm/i915/bdw: Make sure error capture keeps working with Execlists Since the ringbuffer does not belong per engine anymore, we have to make sure that we are always recording the correct ringbuffer. TODO: This is only a small fix to keep basic error capture working, but we need to add more information for it to be useful (e.g. dump the context being executed). v2: Reorder how the ringbuffer is chosen to clarify the change and rename the variable, both changes suggested by Chris Wilson. Also, add the TODO comment to the code, as suggested by Daniel. Signed-off-by: Oscar Mateo Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 1e05414c6406..22698d44b38d 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -912,9 +912,6 @@ static void i915_record_ring_state(struct drm_device *dev, ering->hws = I915_READ(mmio); } - ering->cpu_ring_head = ring->buffer->head; - ering->cpu_ring_tail = ring->buffer->tail; - ering->hangcheck_score = ring->hangcheck.score; ering->hangcheck_action = ring->hangcheck.action; @@ -977,6 +974,7 @@ static void i915_gem_record_rings(struct drm_device *dev, for (i = 0; i < I915_NUM_RINGS; i++) { struct intel_engine_cs *ring = &dev_priv->ring[i]; + struct intel_ringbuffer *rbuf; error->ring[i].pid = -1; @@ -1023,8 +1021,24 @@ static void i915_gem_record_rings(struct drm_device *dev, } } + if (i915.enable_execlists) { + /* TODO: This is only a small fix to keep basic error + * capture working, but we need to add more information + * for it to be useful (e.g. dump the context being + * executed). + */ + if (request) + rbuf = request->ctx->engine[ring->id].ringbuf; + else + rbuf = ring->default_context->engine[ring->id].ringbuf; + } else + rbuf = ring->buffer; + + error->ring[i].cpu_ring_head = rbuf->head; + error->ring[i].cpu_ring_tail = rbuf->tail; + error->ring[i].ringbuffer = - i915_error_ggtt_object_create(dev_priv, ring->buffer->obj); + i915_error_ggtt_object_create(dev_priv, rbuf->obj); error->ring[i].hws_page = i915_error_ggtt_object_create(dev_priv, ring->status_page.obj);