diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 8cc3dcf120d0..0080776c4936 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -724,51 +724,6 @@ bool amdgpu_device_need_post(struct amdgpu_device *adev) return true; } -/** - * amdgpu_dummy_page_init - init dummy page used by the driver - * - * @adev: amdgpu_device pointer - * - * Allocate the dummy page used by the driver (all asics). - * This dummy page is used by the driver as a filler for gart entries - * when pages are taken out of the GART - * Returns 0 on sucess, -ENOMEM on failure. - */ -int amdgpu_dummy_page_init(struct amdgpu_device *adev) -{ - if (adev->dummy_page.page) - return 0; - adev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO); - if (adev->dummy_page.page == NULL) - return -ENOMEM; - adev->dummy_page.addr = pci_map_page(adev->pdev, adev->dummy_page.page, - 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(adev->pdev, adev->dummy_page.addr)) { - dev_err(&adev->pdev->dev, "Failed to DMA MAP the dummy page\n"); - __free_page(adev->dummy_page.page); - adev->dummy_page.page = NULL; - return -ENOMEM; - } - return 0; -} - -/** - * amdgpu_dummy_page_fini - free dummy page used by the driver - * - * @adev: amdgpu_device pointer - * - * Frees the dummy page used by the driver (all asics). - */ -void amdgpu_dummy_page_fini(struct amdgpu_device *adev) -{ - if (adev->dummy_page.page == NULL) - return; - pci_unmap_page(adev->pdev, adev->dummy_page.addr, - PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - __free_page(adev->dummy_page.page); - adev->dummy_page.page = NULL; -} - /* if we get transitioned to only one device, take VGA back */ /** * amdgpu_device_vga_set_decode - enable/disable vga decode |