which was used in the "ttm: Wrap ttm_[put|get]_pages and extract GFP_* and caching states from 'struct ttm_tt" patch.
Signed-off-by: Konrad Rzeszutek Wilk konrad.wilk@oracle.com --- drivers/gpu/drm/ttm/ttm_page_alloc.c | 83 ++++++++++++++++----------------- 1 files changed, 40 insertions(+), 43 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index c30d62b..24c0340 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -660,9 +660,48 @@ out: return count; }
+/* Put all pages in pages list to correct pool to wait for reuse */ static void __ttm_put_pages(struct list_head *pages, unsigned page_count, int flags, enum ttm_caching_state cstate, - dma_addr_t *dma_address); + dma_addr_t *dma_address) +{ + unsigned long irq_flags; + struct ttm_page_pool *pool = ttm_get_pool(flags, cstate); + struct page *p, *tmp; + + if (pool == NULL) { + /* No pool for this memory type so free the pages */ + + list_for_each_entry_safe(p, tmp, pages, lru) { + __free_page(p); + } + /* Make the pages list empty */ + INIT_LIST_HEAD(pages); + return; + } + if (page_count == 0) { + list_for_each_entry_safe(p, tmp, pages, lru) { + ++page_count; + } + } + + spin_lock_irqsave(&pool->lock, irq_flags); + list_splice_init(pages, &pool->list); + pool->npages += page_count; + /* Check that we don't go over the pool limit */ + page_count = 0; + if (pool->npages > _manager->options.max_size) { + page_count = pool->npages - _manager->options.max_size; + /* free at least NUM_PAGES_TO_ALLOC number of pages + * to reduce calls to set_memory_wb */ + if (page_count < NUM_PAGES_TO_ALLOC) + page_count = NUM_PAGES_TO_ALLOC; + } + spin_unlock_irqrestore(&pool->lock, irq_flags); + if (page_count) + ttm_page_pool_free(pool, page_count); +} + /* * On success pages list will hold count number of correctly * cached pages. @@ -736,48 +775,6 @@ static int __ttm_get_pages(struct list_head *pages, int flags, return 0; }
-/* Put all pages in pages list to correct pool to wait for reuse */ -static void __ttm_put_pages(struct list_head *pages, unsigned page_count, - int flags, enum ttm_caching_state cstate, - dma_addr_t *dma_address) -{ - unsigned long irq_flags; - struct ttm_page_pool *pool = ttm_get_pool(flags, cstate); - struct page *p, *tmp; - - if (pool == NULL) { - /* No pool for this memory type so free the pages */ - - list_for_each_entry_safe(p, tmp, pages, lru) { - __free_page(p); - } - /* Make the pages list empty */ - INIT_LIST_HEAD(pages); - return; - } - if (page_count == 0) { - list_for_each_entry_safe(p, tmp, pages, lru) { - ++page_count; - } - } - - spin_lock_irqsave(&pool->lock, irq_flags); - list_splice_init(pages, &pool->list); - pool->npages += page_count; - /* Check that we don't go over the pool limit */ - page_count = 0; - if (pool->npages > _manager->options.max_size) { - page_count = pool->npages - _manager->options.max_size; - /* free at least NUM_PAGES_TO_ALLOC number of pages - * to reduce calls to set_memory_wb */ - if (page_count < NUM_PAGES_TO_ALLOC) - page_count = NUM_PAGES_TO_ALLOC; - } - spin_unlock_irqrestore(&pool->lock, irq_flags); - if (page_count) - ttm_page_pool_free(pool, page_count); -} - static void ttm_page_pool_init_locked(struct ttm_page_pool *pool, int flags, char *name) {