On Thu, Jul 9, 2015 at 2:19 PM, <j.glisse at gmail.com> wrote:
> From: Jérôme Glisse <jglisse at 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 at redhat.com>
> Reviewed-by: Mario Kleiner <mario.kleiner.de at gmail.com>
> Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer at amd.com>
> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk at oracle.com>
> Cc: Thomas Hellstrom <thellstrom at vmware.com>
Reviewed-by: Alex Deucher <alexander.deucher at 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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