Am 20.04.2017 um 08:55 schrieb Junwei Zhang:
From: "Zhang, Jerry" <jerry.zh...@amd.com>
v2: unify PRT bit for all ASICs
v3: move PRT flag checking in amdgpu_vm_bo_split_mapping()
Signed-off-by: Junwei Zhang <jerry.zh...@amd.com>
Acked-by: David Zhou <david1.z...@amd.com>
Reviewed-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 ++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 3 ++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 30754ef..d363a9e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1143,6 +1143,12 @@ static int amdgpu_vm_bo_split_mapping(struct
amdgpu_device *adev,
flags &= ~AMDGPU_PTE_MTYPE_MASK;
flags |= (mapping->flags & AMDGPU_PTE_MTYPE_MASK);
+ if ((mapping->flags & AMDGPU_PTE_PRT) &&
+ (adev->asic_type >= CHIP_VEGA10)) {
+ flags |= AMDGPU_PTE_PRT;
+ flags &= ~AMDGPU_PTE_VALID;
+ }
+
trace_amdgpu_vm_bo_update(mapping);
pfn = mapping->offset >> PAGE_SHIFT;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 4904740..6c670d5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -65,7 +65,8 @@
#define AMDGPU_PTE_FRAG(x) ((x & 0x1fULL) << 7)
-#define AMDGPU_PTE_PRT (1ULL << 63)
+/* TILED for VEGA10, reserved for older ASICs */
+#define AMDGPU_PTE_PRT (1ULL << 51)
/* VEGA10 only */
#define AMDGPU_PTE_MTYPE(a) ((uint64_t)a << 57)
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