diff options
Diffstat (limited to 'drivers/video/tegra/nvmap/nvmap_handle.c')
| -rw-r--r-- | drivers/video/tegra/nvmap/nvmap_handle.c | 73 |
1 files changed, 14 insertions, 59 deletions
diff --git a/drivers/video/tegra/nvmap/nvmap_handle.c b/drivers/video/tegra/nvmap/nvmap_handle.c index 2f24ba515862..56e2dab1820c 100644 --- a/drivers/video/tegra/nvmap/nvmap_handle.c +++ b/drivers/video/tegra/nvmap/nvmap_handle.c @@ -38,22 +38,12 @@ #include <mach/iovmm.h> #include <linux/nvmap.h> -#include <linux/vmstat.h> -#include <linux/swap.h> #include <linux/shrinker.h> #include <linux/moduleparam.h> - #include "nvmap.h" #include "nvmap_mru.h" #include "nvmap_common.h" -#define PRINT_CARVEOUT_CONVERSION 0 -#if PRINT_CARVEOUT_CONVERSION -#define PR_INFO pr_info -#else -#define PR_INFO(...) -#endif - #define NVMAP_SECURE_HEAPS (NVMAP_HEAP_CARVEOUT_IRAM | NVMAP_HEAP_IOVMM | \ NVMAP_HEAP_CARVEOUT_VPR) #ifdef CONFIG_NVMAP_HIGHMEM_ONLY @@ -646,36 +636,19 @@ fail: static void alloc_handle(struct nvmap_client *client, struct nvmap_handle *h, unsigned int type) { + unsigned int carveout_mask = NVMAP_HEAP_CARVEOUT_MASK; + unsigned int iovmm_mask = NVMAP_HEAP_IOVMM; + BUG_ON(type & (type - 1)); #ifdef CONFIG_NVMAP_CONVERT_CARVEOUT_TO_IOVMM -#define __NVMAP_HEAP_CARVEOUT (NVMAP_HEAP_CARVEOUT_IRAM | NVMAP_HEAP_CARVEOUT_VPR) -#define __NVMAP_HEAP_IOVMM (NVMAP_HEAP_IOVMM | NVMAP_HEAP_CARVEOUT_GENERIC) - if (type & NVMAP_HEAP_CARVEOUT_GENERIC) { -#ifdef CONFIG_NVMAP_ALLOW_SYSMEM - if (h->size <= PAGE_SIZE) { - PR_INFO("###CARVEOUT CONVERTED TO SYSMEM " - "0x%x bytes %s(%d)###\n", - h->size, current->comm, current->pid); - goto sysheap; - } -#endif - PR_INFO("###CARVEOUT CONVERTED TO IOVM " - "0x%x bytes %s(%d)###\n", - h->size, current->comm, current->pid); - } -#else -#define __NVMAP_HEAP_CARVEOUT NVMAP_HEAP_CARVEOUT_MASK -#define __NVMAP_HEAP_IOVMM NVMAP_HEAP_IOVMM + /* Convert generic carveout requests to iovmm requests. */ + carveout_mask &= ~NVMAP_HEAP_CARVEOUT_GENERIC; + iovmm_mask |= NVMAP_HEAP_CARVEOUT_GENERIC; #endif - if (type & __NVMAP_HEAP_CARVEOUT) { + if (type & carveout_mask) { struct nvmap_heap_block *b; -#ifdef CONFIG_NVMAP_CONVERT_CARVEOUT_TO_IOVMM - PR_INFO("###IRAM REQUEST RETAINED " - "0x%x bytes %s(%d)###\n", - h->size, current->comm, current->pid); -#endif /* Protect handle from relocation */ nvmap_usecount_inc(h); @@ -689,7 +662,7 @@ static void alloc_handle(struct nvmap_client *client, } nvmap_usecount_dec(h); - } else if (type & __NVMAP_HEAP_IOVMM) { + } else if (type & iovmm_mask) { size_t reserved = PAGE_ALIGN(h->size); int commit = 0; int ret; @@ -713,10 +686,6 @@ static void alloc_handle(struct nvmap_client *client, } } else if (type & NVMAP_HEAP_SYSMEM) { -#if defined(CONFIG_NVMAP_CONVERT_CARVEOUT_TO_IOVMM) && \ - defined(CONFIG_NVMAP_ALLOW_SYSMEM) -sysheap: -#endif if (handle_page_alloc(client, h, true) == 0) { BUG_ON(!h->pgalloc.contig); h->heap_pgalloc = true; @@ -751,10 +720,6 @@ static const unsigned int heap_policy_large[] = { 0, }; -/* Do not override single page policy if there is not much space to -avoid invoking system oom killer. */ -#define NVMAP_SMALL_POLICY_SYSMEM_THRESHOLD 50000000 - int nvmap_alloc_handle_id(struct nvmap_client *client, unsigned long id, unsigned int heap_mask, size_t align, unsigned int flags) @@ -779,32 +744,22 @@ int nvmap_alloc_handle_id(struct nvmap_client *client, h->align = max_t(size_t, align, L1_CACHE_BYTES); #ifndef CONFIG_TEGRA_IOVMM + /* convert iovmm requests to generic carveout. */ if (heap_mask & NVMAP_HEAP_IOVMM) { - heap_mask &= NVMAP_HEAP_IOVMM; - heap_mask |= NVMAP_HEAP_CARVEOUT_GENERIC; + heap_mask = heap_mask & ~NVMAP_HEAP_IOVMM | + NVMAP_HEAP_CARVEOUT_GENERIC; } #endif -#ifndef CONFIG_NVMAP_CONVERT_CARVEOUT_TO_IOVMM #ifdef CONFIG_NVMAP_ALLOW_SYSMEM /* Allow single pages allocations in system memory to save * carveout space and avoid extra iovm mappings */ if (nr_page == 1) { - if (heap_mask & NVMAP_HEAP_IOVMM) + if (heap_mask & + (NVMAP_HEAP_IOVMM | NVMAP_HEAP_CARVEOUT_GENERIC)) heap_mask |= NVMAP_HEAP_SYSMEM; - else if (heap_mask & NVMAP_HEAP_CARVEOUT_GENERIC) { - /* Calculate size of free physical pages - * managed by kernel */ - unsigned long freeMem = - (global_page_state(NR_FREE_PAGES) + - global_page_state(NR_FILE_PAGES) - - total_swapcache_pages) << PAGE_SHIFT; - - if (freeMem > NVMAP_SMALL_POLICY_SYSMEM_THRESHOLD) - heap_mask |= NVMAP_HEAP_SYSMEM; - } } #endif - +#ifndef CONFIG_NVMAP_CONVERT_CARVEOUT_TO_IOVMM /* This restriction is deprecated as alignments greater than PAGE_SIZE are now correctly handled, but it is retained for AP20 compatibility. */ |