On 19/08/16 14:39, Chris Wilson wrote:
On Fri, Aug 19, 2016 at 02:31:15PM +0100, Dave Gordon wrote:
@@ -654,6 +680,14 @@ int intel_logical_ring_alloc_request_extras(struct
drm_i915_gem_request *request
*/
request->reserved_space += EXECLISTS_REQUEST_SIZE;
+ /*
+
On Fri, Aug 19, 2016 at 02:31:15PM +0100, Dave Gordon wrote:
> @@ -654,6 +680,14 @@ int intel_logical_ring_alloc_request_extras(struct
> drm_i915_gem_request *request
>*/
> request->reserved_space += EXECLISTS_REQUEST_SIZE;
>
> + /*
> + * WA_TAIL_DWORDS is specific to the
Currently the execlist-specific emit-request functions start writing
to the ring and reserve space for a workaround to be emitted later
whilst submitting the request. It is easier to read if the caller only
allocates sufficient space for its own accesses (then the reader can
quickly verify that
