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drm/amdgpu: check userptrs mm earlier

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Instead of when we try to bind it check the usermm when
we try to use it in the IOCTLs.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2016-02-08 11:08:35 +01:00 • committed by Alex Deucher
parent 04db4caf5c
commit cc325d1913
7 changed files with 27 additions and 15 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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@ -101,7 +101,7 @@ static int amdgpu_cs_user_fence_chunk(struct amdgpu_cs_parser *p,
p->uf.bo = amdgpu_bo_ref(gem_to_amdgpu_bo(gobj));
p->uf.offset = fence_data->offset;
if (amdgpu_ttm_tt_has_userptr(p->uf.bo->tbo.ttm)) {
if (amdgpu_ttm_tt_get_usermm(p->uf.bo->tbo.ttm)) {
drm_gem_object_unreference_unlocked(gobj);
return -EINVAL;
}
@ -296,8 +296,13 @@ int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
list_for_each_entry(lobj, validated, tv.head) {
struct amdgpu_bo *bo = lobj->robj;
struct mm_struct *usermm;
uint32_t domain;
usermm = amdgpu_ttm_tt_get_usermm(bo->tbo.ttm);
if (usermm && usermm != current->mm)
return -EPERM;
if (bo->pin_count)
continue;