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drm/xe/uapi: Reject bo creation of unaligned size

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For xe bo creation we request passing size which matches system or
vram minimum page alignment. This way we want to ensure userspace
is aware of region constraints and not aligned allocations will be
rejected returning EINVAL.

v2:
- Rebase, Update uAPI documentation. (Thomas)
v3:
- Adjust the dma-buf kunit test accordingly. (Thomas)
v4:
- Fixed rebase conflicts and updated commit message. (Francois)

Signed-off-by: Mauro Carvalho Chehab <mauro.chehab@linux.intel.com>
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Mauro Carvalho Chehab
2023-11-22 14:38:23 +00:00
committed by Rodrigo Vivi
parent 2bec307154
commit 4e03b58414
3 changed files with 37 additions and 22 deletions
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10
drivers/gpu/drm/xe/tests/xe_dma_buf.c
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@@ -109,15 +109,21 @@ static void xe_test_dmabuf_import_same_driver(struct xe_device *xe)
struct drm_gem_object *import;
struct dma_buf *dmabuf;
struct xe_bo *bo;
size_t size;
/* No VRAM on this device? */
if (!ttm_manager_type(&xe->ttm, XE_PL_VRAM0) &&
(params->mem_mask & XE_BO_CREATE_VRAM0_BIT))
return;
size = PAGE_SIZE;
if ((params->mem_mask & XE_BO_CREATE_VRAM0_BIT) &&
xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K)
size = SZ_64K;
kunit_info(test, "running %s\n", __func__);
bo = xe_bo_create_user(xe, NULL, NULL, PAGE_SIZE, DRM_XE_GEM_CPU_CACHING_WC,
ttm_bo_type_device, params->mem_mask);
bo = xe_bo_create_user(xe, NULL, NULL, size, DRM_XE_GEM_CPU_CACHING_WC,
ttm_bo_type_device, XE_BO_CREATE_USER_BIT | params->mem_mask);
if (IS_ERR(bo)) {
KUNIT_FAIL(test, "xe_bo_create() failed with err=%ld\n",
PTR_ERR(bo));