diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 96a09f61883b..bf5055642b82 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3664,6 +3664,27 @@ failed_unmap: return r; } +static void amdgpu_device_unmap_mmio(struct amdgpu_device *adev) +{ + /* Clear all CPU mappings pointing to this device */ + unmap_mapping_range(adev->ddev.anon_inode->i_mapping, 0, 0, 1); + + /* Unmap all mapped bars - Doorbell, registers and VRAM */ + amdgpu_device_doorbell_fini(adev); + + iounmap(adev->rmmio); + adev->rmmio = NULL; + if (adev->mman.aper_base_kaddr) + iounmap(adev->mman.aper_base_kaddr); + adev->mman.aper_base_kaddr = NULL; + + /* Memory manager related */ + if (!adev->gmc.xgmi.connected_to_cpu) { + arch_phys_wc_del(adev->gmc.vram_mtrr); + arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size); + } +} + /** * amdgpu_device_fini - tear down the driver * @@ -3710,6 +3731,8 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev) amdgpu_device_ip_fini_early(adev); amdgpu_gart_dummy_page_fini(adev); + + amdgpu_device_unmap_mmio(adev); } void amdgpu_device_fini_sw(struct amdgpu_device *adev) @@ -3737,9 +3760,6 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev) } if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) vga_client_register(adev->pdev, NULL, NULL, NULL); - iounmap(adev->rmmio); - adev->rmmio = NULL; - amdgpu_device_doorbell_fini(adev); if (IS_ENABLED(CONFIG_PERF_EVENTS)) amdgpu_pmu_fini(adev); |