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drm/amdgpu: Fix unmapping of aperture 

When aperture size is zero, there is no mapping done.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2023-03-03 18:03:00 +05:30 committed by Alex Deucher
parent e181be58cc
commit a0ba127960
3 changed files with 6 additions and 6 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -4121,7 +4121,7 @@ static void amdgpu_device_unmap_mmio(struct amdgpu_device *adev)
adev->mman.aper_base_kaddr = NULL;
/* Memory manager related */
if (!adev->gmc.xgmi.connected_to_cpu) {
if (!adev->gmc.xgmi.connected_to_cpu && !adev->gmc.is_app_apu) {
arch_phys_wc_del(adev->gmc.vram_mtrr);
arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
}

3
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@ -1080,8 +1080,7 @@ void amdgpu_bo_fini(struct amdgpu_device *adev)
amdgpu_ttm_fini(adev);
if (drm_dev_enter(adev_to_drm(adev), &idx)) {
if (!adev->gmc.xgmi.connected_to_cpu) {
if (!adev->gmc.xgmi.connected_to_cpu && !adev->gmc.is_app_apu) {
arch_phys_wc_del(adev->gmc.vram_mtrr);
arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
}

7
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -1844,12 +1844,13 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
adev->mman.aper_base_kaddr = ioremap_cache(adev->gmc.aper_base,
adev->gmc.visible_vram_size);
else if (!adev->gmc.is_app_apu)
else if (adev->gmc.is_app_apu)
DRM_DEBUG_DRIVER(
"No need to ioremap when real vram size is 0\n");
else
#endif
adev->mman.aper_base_kaddr = ioremap_wc(adev->gmc.aper_base,
adev->gmc.visible_vram_size);
else
DRM_DEBUG_DRIVER("No need to ioremap when real vram size is 0\n");
#endif
/*