On Thu, Jul 9, 2015 at 2:19 PM, j.glisse@gmail.com wrote:
From: Jérôme Glisse jglisse@redhat.com
Current code never allowed the page pool to actualy fill in anyway. This fix it, so that we only start freeing page from the pool when we go over the pool size.
Changed since v1:
- Move the page batching optimization to its separate patch.
Changed since v2:
- Do not remove code part of the batching optimization with this patch.
- Better commit message.
Signed-off-by: Jérôme Glisse jglisse@redhat.com Reviewed-by: Mario Kleiner mario.kleiner.de@gmail.com Reviewed-and-Tested-by: Michel Dänzer michel.daenzer@amd.com Reviewed-by: Konrad Rzeszutek Wilk konrad.wilk@oracle.com Cc: Thomas Hellstrom thellstrom@vmware.com
Reviewed-by: Alex Deucher alexander.deucher@amd.com
drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c index 3077f15..af23080 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c @@ -963,7 +963,6 @@ void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev) } else { pool->npages_free += count; list_splice(&ttm_dma->pages_list, &pool->free_list);
npages = count; if (pool->npages_free > _manager->options.max_size) { npages = pool->npages_free - _manager->options.max_size; /* free at least NUM_PAGES_TO_ALLOC number of pages-- 1.8.3.1
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