drm/ttm: add VADDR_FLAG_UPDATED_COUNT to correctly update dma_page global count

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add this for correctly updating global mem count in ttm_mem_zone.
before that when ttm_mem_global_alloc_page fails, we would update all
dma_page's global mem count in ttm_dma->pages_list. but actually here
we should not update for the last dma_page.

v2: only the update of last dma_page is not right
v3: use lower bits of dma_page vaddr

Signed-off-by: Roger He <Hongbo.He@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Roger He 2018-01-15 13:06:38 +08:00 • committed by Alex Deucher

parent 8159e50920

commit 8f2112f84c

1 changed files with 29 additions and 26 deletions

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drivers/gpu/drm/ttm/ttm_page_alloc_dma.c

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