diff options
| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2022-11-29 12:45:26 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:51:06 -0400 |
| commit | c9a502e981a961053f3f873b14677d95e804251e (patch) | |
| tree | 9c6cfd359ba98249e0242c21c2a92a41dbf7f744 /drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | |
| parent | 34fd9d686772f6725242e900913ca2be987c12dd (diff) | |
drm/amdgpu: Allocate GART table in RAM for AMD APU
Some AMD APUs may not have a dedicated VRAM. On such platforms the GART
table should be allocated on the system memory. When real vram size is
zero, place the GART table in system memory and create an SG BO to make
it GPU accessible.
v2: fix includes
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
(rajneesh: removed set_memory_wc workaround)
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 444441c6b7e3..aca8489635b8 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1688,12 +1688,18 @@ static int gmc_v9_0_gart_init(struct amdgpu_device *adev) adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE_VG10(MTYPE_UC) | AMDGPU_PTE_EXECUTABLE; - r = amdgpu_gart_table_vram_alloc(adev); - if (r) - return r; + if (!adev->gmc.real_vram_size) { + dev_info(adev->dev, "Put GART in system memory for APU\n"); + r = amdgpu_gart_table_ram_alloc(adev); + if (r) + dev_err(adev->dev, "Failed to allocate GART in system memory\n"); + } else { + r = amdgpu_gart_table_vram_alloc(adev); + if (r) + return r; - if (adev->gmc.xgmi.connected_to_cpu) { - r = amdgpu_gmc_pdb0_alloc(adev); + if (adev->gmc.xgmi.connected_to_cpu) + r = amdgpu_gmc_pdb0_alloc(adev); } return r; @@ -1902,7 +1908,12 @@ static int gmc_v9_0_sw_fini(void *handle) amdgpu_gmc_ras_fini(adev); amdgpu_gem_force_release(adev); amdgpu_vm_manager_fini(adev); - amdgpu_gart_table_vram_free(adev); + if (!adev->gmc.real_vram_size) { + dev_info(adev->dev, "Put GART in system memory for APU free\n"); + amdgpu_gart_table_ram_free(adev); + } else { + amdgpu_gart_table_vram_free(adev); + } amdgpu_bo_free_kernel(&adev->gmc.pdb0_bo, NULL, &adev->gmc.ptr_pdb0); amdgpu_bo_fini(adev); |