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drm: Remove the dma_alloc_coherent wrapper for internal usage

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Internally for "consistent" maps, we create a temporary struct
drm_dma_handle in order to use our own dma_alloc_coherent wrapper then
destroy the temporary wrap. Simplify our logic by removing the temporary
wrapper!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200202171635.4039044-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2020-02-02 17:16:32 +00:00
parent ea36ec8623
commit 8e4ff9b569
4 changed files with 15 additions and 36 deletions
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10
drivers/gpu/drm/drm_vm.c
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@@ -269,8 +269,6 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
}
if (!found_maps) {
drm_dma_handle_t dmah;
switch (map->type) {
case _DRM_REGISTERS:
case _DRM_FRAME_BUFFER:
@@ -284,10 +282,10 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
case _DRM_SCATTER_GATHER:
break;
case _DRM_CONSISTENT:
dmah.vaddr = map->handle;
dmah.busaddr = map->offset;
dmah.size = map->size;
__drm_legacy_pci_free(dev, &dmah);
dma_free_coherent(&dev->pdev->dev,
map->size,
map->handle,
map->offset);
break;
}
kfree(map);