On 11/08/16 12:20, Chris Wilson wrote:
On Thu, Aug 11, 2016 at 12:05:58PM +0100, Tvrtko Ursulin wrote:
@@ -1394,9 +1393,13 @@ static int gen6_signal(struct drm_i915_gem_request *req)
if (ret)
return ret;
- for_each_engine_id(useless, dev_priv, id) {
- i915_reg_t mbox_reg = req->engine->semaphore.mbox.signal[id];
+ for_each_engine(engine, dev_priv) {
+ i915_reg_t mbox_reg;
+
+ if (engine->hw_id > GEN6_SEMAPHORE_LAST)
+ continue;
Yeah, this makes more sense to me...
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index ac568808aeb1..c2d8677b5b9f 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -277,11 +277,12 @@ struct intel_engine_cs {
u32 sync_seqno[I915_NUM_ENGINES-1];
union {
+#define GEN6_SEMAPHORE_LAST VECS_HW
struct {
/* our mbox written by others */
- u32 wait[I915_NUM_ENGINES];
+ u32 wait[GEN6_SEMAPHORE_LAST + 1];
but I agree with your hesistation here.
#define GEN6_SEMAPHORE_LAST VECS_HW
#define GEN6_NUM_SEMAPHORES (GEN6_SEMAPHORE_LAST_HW + 1)
#define GEN6_MASK_SEMAPHORES GENMASK(GEN6_SEMAPHORE_LAST, 0)
if (!(BIT(engine->hw_id) & GEN6_SEMAPHORES_MASK))
continue;
(can't decide on NUM/MASK_SEM or SEM_COUNT/MASK)
would that look better?
Yeah it is better, will do that with NUM/MASK.
Regards,
Tvrtko
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