From: Oak Zeng <Oak.Zeng@xxxxxxx>
If use gart for FB translation, we will squeeze vram into
sysvm aperture. This requires 2 level gart table. Add
page table depth and page table block size parameters
to gmc. This is prepare work to 2-level gart table
construction
Signed-off-by: Oak Zeng <Oak.Zeng@xxxxxxx>
Reviewed-by: Christian Konig <christian.koenig@xxxxxxx>
Reviewed-by: Felix Kuehling <felix.kuehling@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 3 +++
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 5 ++++-
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 9 +++++++++
drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c | 5 ++++-
4 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
index a061a5632445..d5312b8e6abf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
@@ -244,6 +244,9 @@ struct amdgpu_gmc {
struct amdgpu_xgmi xgmi;
struct amdgpu_irq_src ecc_irq;
int noretry;
+
+ uint32_t vmid0_page_table_block_size;
+ uint32_t vmid0_page_table_depth;
};
#define amdgpu_gmc_flush_gpu_tlb(adev, vmid, vmhub, type) ((adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid), (vmhub), (type)))
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index c6687c6cf03d..5382c36c93d7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -189,7 +189,10 @@ static void gfxhub_v1_0_enable_system_domain(struct amdgpu_device *adev)
tmp = RREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
- tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
+ tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH,
+ adev->gmc.vmid0_page_table_depth);
+ tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_BLOCK_SIZE,
+ adev->gmc.vmid0_page_table_block_size);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL,
RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
WREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL, tmp);
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 0fce8506fc0d..96052dc114cd 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1363,6 +1363,15 @@ static int gmc_v9_0_gart_init(struct amdgpu_device *adev)
WARN(1, "VEGA10 PCIE GART already initialized\n");
return 0;
}
+
+ if (adev->gmc.xgmi.connected_to_cpu) {
+ adev->gmc.vmid0_page_table_depth = 1;
+ adev->gmc.vmid0_page_table_block_size = 12;
+ } else {
+ adev->gmc.vmid0_page_table_depth = 0;
+ adev->gmc.vmid0_page_table_block_size = 0;
+ }
+
/* Initialize common gart structure */
r = amdgpu_gart_init(adev);
if (r)
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c
index 08c50ce491e3..3a89bf76d22e 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c
@@ -198,7 +198,10 @@ static void mmhub_v1_7_enable_system_domain(struct amdgpu_device *adev)
tmp = RREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
- tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
+ tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH,
+ adev->gmc.vmid0_page_table_depth);
+ tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_BLOCK_SIZE,
+ adev->gmc.vmid0_page_table_block_size);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL,
RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_CNTL, tmp);
--
2.29.2
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