Am 28.01.21 um 15:35 schrieb Nirmoy Das:
Enable gfx wave limiting for gfx jobs before pushing high priority
compute jobs so that high priority compute jobs gets more resources
to finish early.
The problem here is what happens if you have multiple high priority jobs
running at the same time?
Christian
Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 024d0a563a65..ee48989dfb4c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -195,6 +195,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
if ((ib->flags & AMDGPU_IB_FLAG_EMIT_MEM_SYNC) && ring->funcs->emit_mem_sync)
ring->funcs->emit_mem_sync(ring);
+ if (ring->funcs->emit_wave_limit && job &&
+ job->base.s_priority >= DRM_SCHED_PRIORITY_HIGH)
+ ring->funcs->emit_wave_limit(ring, true);
+
if (ring->funcs->insert_start)
ring->funcs->insert_start(ring);
@@ -295,6 +299,11 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
ring->current_ctx = fence_ctx;
if (vm && ring->funcs->emit_switch_buffer)
amdgpu_ring_emit_switch_buffer(ring);
+
+ if (ring->funcs->emit_wave_limit && job &&
+ job->base.s_priority >= DRM_SCHED_PRIORITY_HIGH)
+ ring->funcs->emit_wave_limit(ring, false);
+
amdgpu_ring_commit(ring);
return 0;
}
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