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| author | Christian König | 2015-09-04 10:47:56 +0200 |
|---|---|---|
| committer | Alex Deucher | 2015-09-23 23:23:35 +0200 |
| commit | bf60efd353f68e5dec1a177b5cbe4da07c819569 (patch) | |
| tree | 03911fc3289220f4003b9778a62a4793e26f076f /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | drm/amdgpu: validate duplicates in the CS as well (diff) | |
| download | kernel-qcow2-linux-bf60efd353f68e5dec1a177b5cbe4da07c819569.tar.gz kernel-qcow2-linux-bf60efd353f68e5dec1a177b5cbe4da07c819569.tar.xz kernel-qcow2-linux-bf60efd353f68e5dec1a177b5cbe4da07c819569.zip | |
drm/amdgpu: use only one reservation object for each VM v2
Reduces the locking and fencing overhead.
v2: add comment why we need the duplicates list in the GEM op.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index b75c3b235832..2f39fea10bd1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -455,11 +455,12 @@ static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev, struct ttm_validate_buffer tv, *entry; struct amdgpu_bo_list_entry *vm_bos; struct ww_acquire_ctx ticket; - struct list_head list; + struct list_head list, duplicates; unsigned domain; int r; INIT_LIST_HEAD(&list); + INIT_LIST_HEAD(&duplicates); tv.bo = &bo_va->bo->tbo; tv.shared = true; @@ -469,7 +470,8 @@ static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev, if (!vm_bos) return; - r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL); + /* Provide duplicates to avoid -EALREADY */ + r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates); if (r) goto error_free; |