diff mbox series

[03/14] drm/amdgpu: define the TMZ bit for the PTE

Message ID 1568202584-14471-4-git-send-email-ray.huang@amd.com (mailing list archive)
State New, archived
Headers show
Series drm/amdgpu: introduce secure buffer object support (trusted memory zone) | expand

Commit Message

Huang Rui Sept. 11, 2019, 11:50 a.m. UTC 
From: Alex Deucher <alexander.deucher@amd.com>

Define the TMZ (encryption) bit in the page table entry (PTE) for
Raven and newer asics.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 3352a87..4b5d283 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -53,6 +53,9 @@  struct amdgpu_bo_list_entry;
 #define AMDGPU_PTE_SYSTEM	(1ULL << 1)
 #define AMDGPU_PTE_SNOOPED	(1ULL << 2)
 
+/* RV+ */
+#define AMDGPU_PTE_TMZ		(1ULL << 3)
+
 /* VI only */
 #define AMDGPU_PTE_EXECUTABLE	(1ULL << 4)