From: Christian König <christian.koenig@xxxxxxx>
Remove unused defines and variables. Also stop computing the
gfp_flags when they aren't used.
No intended functional change.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | 42 ++++++++++++--------------------
1 file changed, 16 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
index 6c38046..2081e20 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -57,22 +57,15 @@
#define NUM_PAGES_TO_ALLOC (PAGE_SIZE/sizeof(struct page *))
#define SMALL_ALLOCATION 4
#define FREE_ALL_PAGES (~0U)
-/* times are in msecs */
-#define IS_UNDEFINED (0)
-#define IS_WC (1<<1)
-#define IS_UC (1<<2)
-#define IS_CACHED (1<<3)
-#define IS_DMA32 (1<<4)
enum pool_type {
- POOL_IS_UNDEFINED,
- POOL_IS_WC = IS_WC,
- POOL_IS_UC = IS_UC,
- POOL_IS_CACHED = IS_CACHED,
- POOL_IS_WC_DMA32 = IS_WC | IS_DMA32,
- POOL_IS_UC_DMA32 = IS_UC | IS_DMA32,
- POOL_IS_CACHED_DMA32 = IS_CACHED | IS_DMA32,
+ IS_UNDEFINED = 0,
+ IS_WC = 1 << 1,
+ IS_UC = 1 << 2,
+ IS_CACHED = 1 << 3,
+ IS_DMA32 = 1 << 4
};
+
/*
* The pool structure. There are usually six pools:
* - generic (not restricted to DMA32):
@@ -83,11 +76,9 @@ enum pool_type {
* The other ones can be shrunk by the shrinker API if neccessary.
* @pools: The 'struct device->dma_pools' link.
* @type: Type of the pool
- * @lock: Protects the inuse_list and free_list from concurrnet access. Must be
+ * @lock: Protects the free_list from concurrnet access. Must be
* used with irqsave/irqrestore variants because pool allocator maybe called
* from delayed work.
- * @inuse_list: Pool of pages that are in use. The order is very important and
- * it is in the order that the TTM pages that are put back are in.
* @free_list: Pool of pages that are free to be used. No order requirements.
* @dev: The device that is associated with these pools.
* @size: Size used during DMA allocation.
@@ -104,7 +95,6 @@ struct dma_pool {
struct list_head pools; /* The 'struct device->dma_pools link */
enum pool_type type;
spinlock_t lock;
- struct list_head inuse_list;
struct list_head free_list;
struct device *dev;
unsigned size;
@@ -606,7 +596,6 @@ static struct dma_pool *ttm_dma_pool_init(struct device *dev, gfp_t flags,
sec_pool->pool = pool;
INIT_LIST_HEAD(&pool->free_list);
- INIT_LIST_HEAD(&pool->inuse_list);
INIT_LIST_HEAD(&pool->pools);
spin_lock_init(&pool->lock);
pool->dev = dev;
@@ -879,22 +868,23 @@ int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev)
struct dma_pool *pool;
enum pool_type type;
unsigned i;
- gfp_t gfp_flags;
int ret;
if (ttm->state != tt_unpopulated)
return 0;
type = ttm_to_type(ttm->page_flags, ttm->caching_state);
- if (ttm->page_flags & TTM_PAGE_FLAG_DMA32)
- gfp_flags = GFP_USER | GFP_DMA32;
- else
- gfp_flags = GFP_HIGHUSER;
- if (ttm->page_flags & TTM_PAGE_FLAG_ZERO_ALLOC)
- gfp_flags |= __GFP_ZERO;
-
pool = ttm_dma_find_pool(dev, type);
if (!pool) {
+ gfp_t gfp_flags;
+
+ if (ttm->page_flags & TTM_PAGE_FLAG_DMA32)
+ gfp_flags = GFP_USER | GFP_DMA32;
+ else
+ gfp_flags = GFP_HIGHUSER;
+ if (ttm->page_flags & TTM_PAGE_FLAG_ZERO_ALLOC)
+ gfp_flags |= __GFP_ZERO;
+
pool = ttm_dma_pool_init(dev, gfp_flags, type);
if (IS_ERR_OR_NULL(pool)) {
return -ENOMEM;
--
2.7.4
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