8f2112f84c
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>