git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-23 08:55:56 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: Don't change preferred domian when fallback GTT v6

Browse Source 
v2: add sanity checking
v3: make code open
v4: also handle visible to invisible fallback
v5: Since two fallback cases, re-use goto retry
v6: avoid bo is unref when retry, and only user BO can fallback

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com> (v5)
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: felix.kuehling@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou
2018-03-16 12:29:38 +08:00
committed by Alex Deucher
parent a70cdb9edd
commit 5a8c102ac4
2 changed files with 26 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@@ -356,6 +356,7 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size,
struct amdgpu_bo *bo;
unsigned long page_align;
size_t acc_size;
u32 domains, preferred_domains, allowed_domains;
int r;
page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
@@ -369,22 +370,24 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size,
acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,
sizeof(struct amdgpu_bo));
preferred_domains = domain & (AMDGPU_GEM_DOMAIN_VRAM |
AMDGPU_GEM_DOMAIN_GTT |
AMDGPU_GEM_DOMAIN_CPU |
AMDGPU_GEM_DOMAIN_GDS |
AMDGPU_GEM_DOMAIN_GWS |
AMDGPU_GEM_DOMAIN_OA);
allowed_domains = preferred_domains;
if (type != ttm_bo_type_kernel &&
allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
domains = preferred_domains;
retry:
bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
drm_gem_private_object_init(adev->ddev, &bo->gem_base, size);
INIT_LIST_HEAD(&bo->shadow_list);
INIT_LIST_HEAD(&bo->va);
bo->preferred_domains = domain & (AMDGPU_GEM_DOMAIN_VRAM |
AMDGPU_GEM_DOMAIN_GTT |
AMDGPU_GEM_DOMAIN_CPU |
AMDGPU_GEM_DOMAIN_GDS |
AMDGPU_GEM_DOMAIN_GWS |
AMDGPU_GEM_DOMAIN_OA);
bo->allowed_domains = bo->preferred_domains;
if (type != ttm_bo_type_kernel &&
bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
bo->flags = flags;
@@ -417,12 +420,20 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size,
#endif
bo->tbo.bdev = &adev->mman.bdev;
amdgpu_ttm_placement_from_domain(bo, domain);
amdgpu_ttm_placement_from_domain(bo, domains);
r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type,
&bo->placement, page_align, &ctx, acc_size,
NULL, resv, &amdgpu_ttm_bo_destroy);
if (unlikely(r != 0))
if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device) {
if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
goto retry;
} else if (domains != allowed_domains) {
domains = allowed_domains;
goto retry;
}
}
if (unlikely(r))
return r;
if (adev->gmc.visible_vram_size < adev->gmc.real_vram_size &&