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drm/amdgpu: do not call insert_nop fn for zero count

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Do not make a function call for zero size NOP as it
does not add anything in the ring and is unnecessary
function call.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sunil Khatri 2024-07-31 13:36:15 +05:30 committed by Alex Deucher
parent ee0a469cf9
commit 67c4ca9f79
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
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@ -145,7 +145,9 @@ void amdgpu_ring_commit(struct amdgpu_ring *ring)
count = ring->funcs->align_mask + 1 -
(ring->wptr & ring->funcs->align_mask);
count %= ring->funcs->align_mask + 1;
ring->funcs->insert_nop(ring, count);
if (count != 0)
ring->funcs->insert_nop(ring, count);
mb();
amdgpu_ring_set_wptr(ring);