diff options
Diffstat (limited to 'drivers/video/tegra/nvmap/nvmap_handle.c')
| -rw-r--r-- | drivers/video/tegra/nvmap/nvmap_handle.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/drivers/video/tegra/nvmap/nvmap_handle.c b/drivers/video/tegra/nvmap/nvmap_handle.c index 539b7ce9801f..0708e7468dad 100644 --- a/drivers/video/tegra/nvmap/nvmap_handle.c +++ b/drivers/video/tegra/nvmap/nvmap_handle.c @@ -66,6 +66,9 @@ * preserve kmalloc space, if the array of pages exceeds PAGELIST_VMALLOC_MIN, * the array is allocated using vmalloc. */ #define PAGELIST_VMALLOC_MIN (PAGE_SIZE * 2) + +#ifdef CONFIG_NVMAP_PAGE_POOLS + #define NVMAP_TEST_PAGE_POOL_SHRINKER 1 static bool enable_pp = 1; static int pool_size[NVMAP_NUM_POOLS]; @@ -377,6 +380,7 @@ int nvmap_page_pool_init(struct nvmap_page_pool *pool, int flags) int i; static int reg = 1; struct sysinfo info; + int highmem_pages = 0; typedef int (*set_pages_array) (struct page **pages, int addrinarray); set_pages_array s_cpa[] = { set_pages_array_uc, @@ -395,14 +399,16 @@ int nvmap_page_pool_init(struct nvmap_page_pool *pool, int flags) return 0; si_meminfo(&info); - if (!pool_size[flags]) { + if (!pool_size[flags] && !CONFIG_NVMAP_PAGE_POOL_SIZE) /* Use 3/8th of total ram for page pools. * 1/8th for uc, 1/8th for wc and 1/8th for iwb. */ pool->max_pages = info.totalram >> 3; - } + else + pool->max_pages = CONFIG_NVMAP_PAGE_POOL_SIZE; + if (pool->max_pages <= 0 || pool->max_pages >= info.totalram) - pool->max_pages = NVMAP_DEFAULT_PAGE_POOL_SIZE; + goto fail; pool_size[flags] = pool->max_pages; pr_info("nvmap %s page pool size=%d pages", s_memtype_str[flags], pool->max_pages); @@ -425,7 +431,14 @@ int nvmap_page_pool_init(struct nvmap_page_pool *pool, int flags) __free_page(page); goto do_cpa; } + if (PageHighMem(page)) + highmem_pages++; } + si_meminfo(&info); + pr_info("nvmap pool = %s, highmem=%d, pool_size=%d," + "totalram=%lu, freeram=%lu, totalhigh=%lu, freehigh=%lu", + s_memtype_str[flags], highmem_pages, pool->max_pages, + info.totalram, info.freeram, info.totalhigh, info.freehigh); do_cpa: (*s_cpa[flags])(pool->page_array, pool->npages); nvmap_page_pool_unlock(pool); @@ -436,6 +449,7 @@ fail: vfree(pool->page_array); return -ENOMEM; } +#endif static inline void *altalloc(size_t len) { @@ -460,7 +474,9 @@ void _nvmap_handle_free(struct nvmap_handle *h) { struct nvmap_share *share = nvmap_get_share_from_dev(h->dev); unsigned int i, nr_page, page_index = 0; +#ifdef CONFIG_NVMAP_PAGE_POOLS struct nvmap_page_pool *pool = NULL; +#endif if (nvmap_handle_remove(h->dev, h) != 0) return; @@ -481,6 +497,7 @@ void _nvmap_handle_free(struct nvmap_handle *h) nvmap_mru_remove(share, h); +#ifdef CONFIG_NVMAP_PAGE_POOLS if (h->flags < NVMAP_NUM_POOLS) pool = &share->pools[h->flags]; @@ -490,6 +507,7 @@ void _nvmap_handle_free(struct nvmap_handle *h) break; page_index++; } +#endif if (page_index == nr_page) goto skip_attr_restore; @@ -538,12 +556,14 @@ static int handle_page_alloc(struct nvmap_client *client, struct nvmap_handle *h, bool contiguous) { size_t size = PAGE_ALIGN(h->size); - struct nvmap_share *share = nvmap_get_share_from_dev(h->dev); unsigned int nr_page = size >> PAGE_SHIFT; pgprot_t prot; unsigned int i = 0, page_index = 0; struct page **pages; +#ifdef CONFIG_NVMAP_PAGE_POOLS struct nvmap_page_pool *pool = NULL; + struct nvmap_share *share = nvmap_get_share_from_dev(h->dev); +#endif pages = altalloc(nr_page * sizeof(*pages)); if (!pages) @@ -562,6 +582,7 @@ static int handle_page_alloc(struct nvmap_client *client, pages[i] = nth_page(page, i); } else { +#ifdef CONFIG_NVMAP_PAGE_POOLS if (h->flags < NVMAP_NUM_POOLS) pool = &share->pools[h->flags]; @@ -572,7 +593,7 @@ static int handle_page_alloc(struct nvmap_client *client, break; page_index++; } - +#endif for (; i < nr_page; i++) { pages[i] = nvmap_alloc_pages_exact(GFP_NVMAP, PAGE_SIZE); |