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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 32f36c940abb..26220ee87291 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -233,7 +233,8 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
AMDGPU_GEM_CREATE_CPU_GTT_USWC |
AMDGPU_GEM_CREATE_VRAM_CLEARED |
AMDGPU_GEM_CREATE_VM_ALWAYS_VALID |
- AMDGPU_GEM_CREATE_EXPLICIT_SYNC))
+ AMDGPU_GEM_CREATE_EXPLICIT_SYNC |
+ AMDGPU_GEM_CREATE_ENCRYPTED))
return -EINVAL;
@@ -241,6 +242,11 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
return -EINVAL;
+ if (!adev->tmz.enabled && (flags & AMDGPU_GEM_CREATE_ENCRYPTED)) {
+ DRM_ERROR("Cannot allocate secure buffer while tmz is disabled\n");
+ return -EINVAL;
+ }
+
/* create a gem object to contain this object in */
if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS |
AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
@@ -262,6 +268,10 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
resv = vm->root.base.bo->tbo.base.resv;
}
+ if (flags & AMDGPU_GEM_CREATE_ENCRYPTED) {
+ /* XXX: pad out alignment to meet TMZ requirements */
+ }
+
r = amdgpu_gem_object_create(adev, size, args->in.alignment,
(u32)(0xffffffff & args->in.domains),
flags, ttm_bo_type_device, resv, &gobj);