diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
commit | e5fd91f1ef340da553f7a79da9540c3db711c937 (patch) | |
tree | b11842027dc6641da63f4bcc524f8678263304a3 /drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | |
parent | 2a9b0348e685a63d97486f6749622b61e9e3292f (diff) |
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_page_alloc_dma.c')
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c index 01e1d27eb..624d941aa 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c @@ -342,9 +342,12 @@ static struct dma_page *__ttm_dma_alloc_page(struct dma_pool *pool) d_page->vaddr = dma_alloc_coherent(pool->dev, pool->size, &d_page->dma, pool->gfp_flags); - if (d_page->vaddr) - d_page->p = virt_to_page(d_page->vaddr); - else { + if (d_page->vaddr) { + if (is_vmalloc_addr(d_page->vaddr)) + d_page->p = vmalloc_to_page(d_page->vaddr); + else + d_page->p = virt_to_page(d_page->vaddr); + } else { kfree(d_page); d_page = NULL; } @@ -960,14 +963,13 @@ 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) { + /* + * Wait to have at at least NUM_PAGES_TO_ALLOC number of pages + * to free in order to minimize calls to set_memory_wb(). + */ + if (pool->npages_free >= (_manager->options.max_size + + NUM_PAGES_TO_ALLOC)) npages = pool->npages_free - _manager->options.max_size; - /* free at least NUM_PAGES_TO_ALLOC number of pages - * to reduce calls to set_memory_wb */ - if (npages < NUM_PAGES_TO_ALLOC) - npages = NUM_PAGES_TO_ALLOC; - } } spin_unlock_irqrestore(&pool->lock, irq_flags); |