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winsys/amdgpu: optimize looping inefficiencies in add_bo_fence_dependencies 

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13478>
This commit is contained in:
Marek Olšák 2021-10-22 03:31:36 -04:00 committed by Marge Bot
parent c4ba003e2f
commit 0e54ac7a3c
1 changed files with 9 additions and 5 deletions
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14
src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
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@ -1229,8 +1229,9 @@ static void amdgpu_add_bo_fence_dependencies(struct amdgpu_cs *acs,
{
struct amdgpu_winsys_bo *bo = buffer->bo;
unsigned new_num_fences = 0;
const unsigned num_fences = bo->num_fences;
for (unsigned j = 0; j < bo->num_fences; ++j) {
for (unsigned j = 0; j < num_fences; ++j) {
struct amdgpu_fence *bo_fence = (void *)bo->fences[j];
if (is_noop_fence_dependency(acs, bo_fence))
@ -1245,7 +1246,7 @@ static void amdgpu_add_bo_fence_dependencies(struct amdgpu_cs *acs,
add_fence_to_list(&cs->fence_dependencies, bo_fence);
}
for (unsigned j = new_num_fences; j < bo->num_fences; ++j)
for (unsigned j = new_num_fences; j < num_fences; ++j)
amdgpu_fence_reference(&bo->fences[j], NULL);
bo->num_fences = new_num_fences;
@ -1287,11 +1288,14 @@ void amdgpu_add_fences(struct amdgpu_winsys_bo *bo,
}
}
unsigned bo_num_fences = bo->num_fences;
for (unsigned i = 0; i < num_fences; ++i) {
bo->fences[bo->num_fences] = NULL;
amdgpu_fence_reference(&bo->fences[bo->num_fences], fences[i]);
bo->num_fences++;
bo->fences[bo_num_fences] = NULL;
amdgpu_fence_reference(&bo->fences[bo_num_fences], fences[i]);
bo_num_fences++;
}
bo->num_fences = bo_num_fences;
}
static void amdgpu_inc_bo_num_active_ioctls(unsigned num_buffers,