The new memory mapping scheme is:
Fine-grain coherency: local CC and remote UC, with snoop.
Coarse-grain coherency: local RW and remote UC, with snoop.
Change-Id: I6a071249f953cbed813bfd953b6a2e0826f54f86
Signed-off-by: Oak Zeng <Oak.Zeng@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 1 +
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 23 ++++++++++++++++++++++-
2 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index 2b2af6a..51dae7f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -420,6 +420,7 @@ static uint32_t gmc_v6_0_get_vm_mapping_flags(struct amdgpu_device *adev,
return mapping_flags;
}
+
static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
bool value)
{
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 8beefaf..718b388 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -687,6 +687,27 @@ static uint32_t gmc_v9_0_get_vm_mapping_flags(struct amdgpu_device *adev,
return mapping_flags;
}
+static uint32_t gmc_v9_0_arcturus_get_vm_mapping_flags(struct amdgpu_device *adev,
+ uint32_t alloc_flags, bool remote_mapping)
+{
+ uint32_t mapping_flags = AMDGPU_VM_PAGE_READABLE;
+
+ if (alloc_flags & ALLOC_MEM_FLAGS_WRITABLE)
+ mapping_flags |= AMDGPU_VM_PAGE_WRITEABLE;
+ if (alloc_flags & ALLOC_MEM_FLAGS_EXECUTABLE)
+ mapping_flags |= AMDGPU_VM_PAGE_EXECUTABLE;
+ if ((alloc_flags & ALLOC_MEM_FLAGS_VRAM) && !remote_mapping) {
+ if (alloc_flags & ALLOC_MEM_FLAGS_COHERENT)
+ mapping_flags |= AMDGPU_VM_MTYPE_CC;
+ else
+ mapping_flags |= AMDGPU_VM_MTYPE_RW;
+ } else {
+ mapping_flags |= AMDGPU_VM_MTYPE_UC;
+ mapping_flags |= AMDGPU_VM_PAGE_SNOOPED;
+ }
+
+ return mapping_flags;
+}
static const struct amdgpu_gmc_funcs gmc_v9_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v9_0_flush_gpu_tlb,
@@ -703,7 +724,7 @@ static const struct amdgpu_gmc_funcs gmc_v9_0_arcturus_gmc_funcs = {
.emit_pasid_mapping = gmc_v9_0_emit_pasid_mapping,
.get_vm_pte_flags = gmc_v9_0_arcturus_get_vm_pte_flags,
.get_vm_pde = gmc_v9_0_get_vm_pde,
- .get_vm_mapping_flags = gmc_v9_0_get_vm_mapping_flags
+ .get_vm_mapping_flags = gmc_v9_0_arcturus_get_vm_mapping_flags
};
static void gmc_v9_0_set_gmc_funcs(struct amdgpu_device *adev)
--
2.7.4
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