drm/amdgpu: move dummy page functions to amdgpu_gart.c

It's the only place they are used.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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