diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_pool.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_pool.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c index 74bf1c84b637..6e27cb1bf48b 100644 --- a/drivers/gpu/drm/ttm/ttm_pool.c +++ b/drivers/gpu/drm/ttm/ttm_pool.c @@ -33,6 +33,7 @@ #include <linux/module.h> #include <linux/dma-mapping.h> +#include <linux/highmem.h> #ifdef CONFIG_X86 #include <asm/set_memory.h> @@ -218,6 +219,15 @@ static void ttm_pool_unmap(struct ttm_pool *pool, dma_addr_t dma_addr, /* Give pages into a specific pool_type */ static void ttm_pool_type_give(struct ttm_pool_type *pt, struct page *p) { + unsigned int i, num_pages = 1 << pt->order; + + for (i = 0; i < num_pages; ++i) { + if (PageHighMem(p)) + clear_highpage(p + i); + else + clear_page(page_address(p + i)); + } + spin_lock(&pt->lock); list_add(&p->lru, &pt->pages); spin_unlock(&pt->lock); |