[PATCH 053/459] drm/amdgpu: refine the PTE encoding of PRT for navi10

Alex Deucher alexdeucher at gmail.com
Mon Jun 17 19:10:14 UTC 2019


From: Jack Xiao <Jack.Xiao at amd.com>

Due to GCR change from navi10, the PTE encoding of PRT
needs change VSCTL = 01111 (was 0XX1X).

Signed-off-by: Jack Xiao <Jack.Xiao at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 5 +++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 14f96476f3b8..1951f2abbdbc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1585,6 +1585,11 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
 	if ((mapping->flags & AMDGPU_PTE_PRT) &&
 	    (adev->asic_type >= CHIP_VEGA10)) {
 		flags |= AMDGPU_PTE_PRT;
+		if (adev->asic_type >= CHIP_NAVI10) {
+			flags |= AMDGPU_PTE_SNOOPED;
+			flags |= AMDGPU_PTE_LOG;
+			flags |= AMDGPU_PTE_SYSTEM;
+		}
 		flags &= ~AMDGPU_PTE_VALID;
 	}
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 778eb13ab1b8..489a162ca620 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -67,6 +67,8 @@ struct amdgpu_bo_list_entry;
 /* PDE is handled as PTE for VEGA10 */
 #define AMDGPU_PDE_PTE		(1ULL << 54)
 
+#define AMDGPU_PTE_LOG          (1ULL << 55)
+
 /* PTE is handled as PDE for VEGA10 (Translate Further) */
 #define AMDGPU_PTE_TF		(1ULL << 56)
 
-- 
2.20.1



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