[PATCH v2 03/11] drm/amdgpu: define the TMZ bit for the PTE

Huang, Ray Ray.Huang at amd.com
Wed Sep 25 13:45:18 UTC 2019


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

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)
 
-- 
2.7.4



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