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drm/ttm, drm/vmwgfx: Use a configuration option for the TTM dma page pool

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Drivers like vmwgfx may want to test whether the dma page pool is present
or not. Since it's activated by default by TTM if compiled-in, define a
hidden configuration option that the driver can test for.

Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Thomas Hellstrom
2019-11-13 19:02:42 +01:00
parent 3ca3a9eab7
commit e2e966636a
5 changed files with 11 additions and 8 deletions
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2
include/drm/ttm/ttm_page_alloc.h
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@@ -74,7 +74,7 @@ void ttm_unmap_and_unpopulate_pages(struct device *dev, struct ttm_dma_tt *tt);
*/
int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
#if defined(CONFIG_SWIOTLB) || defined(CONFIG_INTEL_IOMMU)
#if defined(CONFIG_DRM_TTM_DMA_PAGE_POOL)
/**
* Initialize pool allocator.
*/