mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-16 14:51:51 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu/gmc12: Set up pdb0 for vmid0 page table

Browse Source 
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>
This commit is contained in:
Hawking Zhang
2026-01-17 17:18:10 +08:00
committed by Alex Deucher
parent 5aca9e0e82
commit 8392ca2d7e
1 changed files with 13 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
View File

@@ -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;