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| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2026-01-17 12:18:10 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-03-17 17:32:05 +0300 |
| commit | 8392ca2d7ef3a8a8f16c24ec52a1315efae52f76 (patch) | |
| tree | 732f11accf338b07c51f69f298cf4ccca6137920 | |
| parent | 5aca9e0e82c541740428746400d7dcc90f4e0820 (diff) | |
| download | linux-8392ca2d7ef3a8a8f16c24ec52a1315efae52f76.tar.xz | |
drm/amdgpu/gmc12: Set up pdb0 for vmid0 page table
Alloc, Init and free pdb0 for vmid0 page table that
is used for fb translation on A + A platform
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c index f5a328bb421d..654c1c7adfae 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c @@ -783,7 +783,14 @@ static int gmc_v12_0_gart_init(struct amdgpu_device *adev) AMDGPU_PTE_EXECUTABLE | AMDGPU_PTE_IS_PTE; - return amdgpu_gart_table_vram_alloc(adev); + r = amdgpu_gart_table_vram_alloc(adev); + if (r) + return r; + + if (amdgpu_gmc_is_pdb0_enabled(adev)) + r = amdgpu_gmc_pdb0_alloc(adev); + + return r; } static int gmc_v12_0_sw_init(struct amdgpu_ip_block *ip_block) @@ -955,6 +962,7 @@ static int gmc_v12_0_sw_fini(struct amdgpu_ip_block *ip_block) amdgpu_vm_manager_fini(adev); gmc_v12_0_gart_fini(adev); amdgpu_gem_force_release(adev); + amdgpu_bo_free_kernel(&adev->gmc.pdb0_bo, NULL, &adev->gmc.ptr_pdb0); amdgpu_bo_fini(adev); return 0; @@ -974,6 +982,9 @@ static int gmc_v12_0_gart_enable(struct amdgpu_device *adev) int r; bool value; + if (adev->gmc.xgmi.connected_to_cpu) + amdgpu_gmc_init_pdb0(adev); + if (adev->gart.bo == NULL) { dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); return -EINVAL; @@ -995,6 +1006,7 @@ static int gmc_v12_0_gart_enable(struct amdgpu_device *adev) drm_info(adev_to_drm(adev), "PCIE GART of %uM enabled (table at 0x%016llX).\n", (unsigned)(adev->gmc.gart_size >> 20), + (adev->gmc.pdb0_bo) ? (unsigned long long)amdgpu_bo_gpu_offset(adev->gmc.pdb0_bo) : (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo)); return 0; |