drm/i915/guc: add engine mask to GuC client & pass to GuC
The Context Descriptor passed by the kernel to the GuC contains a field
specifying which engine(s) the context will use. Historically, this was
always set to "all of them", but if we had a separate client for each
engine, we could be more precise, and set only the bit for the engine
that the client was associated with. So this patch enables this usage,
in preparation for having multiple clients, though at this point there
is still only a single client used for all supported engines.
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h
index 623cf26..e57661f 100644
--- a/drivers/gpu/drm/i915/intel_guc.h
+++ b/drivers/gpu/drm/i915/intel_guc.h
@@ -67,6 +67,8 @@
void *client_base; /* first page (only) of above */
struct i915_gem_context *owner;
struct intel_guc *guc;
+
+ uint32_t engines; /* bitmap of (host) engine ids */
uint32_t priority;
uint32_t ctx_index;
@@ -79,7 +81,6 @@
uint32_t wq_offset;
uint32_t wq_size;
uint32_t wq_tail;
- uint32_t unused; /* Was 'wq_head' */
uint32_t no_wq_space;
uint32_t q_fail; /* No longer used */