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drm/amdgpu: enable eviction fence

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This patch enables attachment and detachment of eviction fences.
This is just a fork of eviction fence enabling code from the first
patch of the series so that the CI testing can happen on fully
fledged code.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shashank Sharma
2024-11-20 18:45:33 +01:00
committed by Alex Deucher
parent a242a3e4b5
commit 31f7efcdca
2 changed files with 12 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
View File

@@ -177,6 +177,8 @@ void amdgpu_eviction_fence_destroy(struct amdgpu_eviction_fence_mgr *evf_mgr)
if (!ev_fence)
return;
dma_fence_wait(&ev_fence->base, false);
/* Last unref of ev_fence */
dma_fence_put(&evf_mgr->ev_fence->base);
}

10
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
View File

@@ -294,6 +294,13 @@ static int amdgpu_gem_object_open(struct drm_gem_object *obj,
else
++bo_va->ref_count;
/* attach gfx eviction fence */
r = amdgpu_eviction_fence_attach(&fpriv->evf_mgr, abo);
if (r) {
DRM_DEBUG_DRIVER("Failed to attach eviction fence to BO\n");
return r;
}
amdgpu_bo_unreserve(abo);
/* Validate and add eviction fence to DMABuf imports with dynamic
@@ -344,6 +351,9 @@ static void amdgpu_gem_object_close(struct drm_gem_object *obj,
struct drm_exec exec;
long r;
if (!amdgpu_vm_is_bo_always_valid(vm, bo))
amdgpu_eviction_fence_detach(&fpriv->evf_mgr, bo);
drm_exec_init(&exec, DRM_EXEC_IGNORE_DUPLICATES, 0);
drm_exec_until_all_locked(&exec) {
r = drm_exec_prepare_obj(&exec, &bo->tbo.base, 1);