diff options
Diffstat (limited to 'drivers/staging/android/ion/ion_carveout_heap.c')
| -rw-r--r-- | drivers/staging/android/ion/ion_carveout_heap.c | 37 |
1 files changed, 8 insertions, 29 deletions
diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c index a8ea97391c40..5fdc1f328f61 100644 --- a/drivers/staging/android/ion/ion_carveout_heap.c +++ b/drivers/staging/android/ion/ion_carveout_heap.c @@ -23,19 +23,17 @@ #include <linux/slab.h> #include <linux/vmalloc.h> #include "ion.h" -#include "ion_priv.h" #define ION_CARVEOUT_ALLOCATE_FAIL -1 struct ion_carveout_heap { struct ion_heap heap; struct gen_pool *pool; - ion_phys_addr_t base; + phys_addr_t base; }; -static ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap, - unsigned long size, - unsigned long align) +static phys_addr_t ion_carveout_allocate(struct ion_heap *heap, + unsigned long size) { struct ion_carveout_heap *carveout_heap = container_of(heap, struct ion_carveout_heap, heap); @@ -47,7 +45,7 @@ static ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap, return offset; } -static void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr, +static void ion_carveout_free(struct ion_heap *heap, phys_addr_t addr, unsigned long size) { struct ion_carveout_heap *carveout_heap = @@ -60,16 +58,13 @@ static void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr, static int ion_carveout_heap_allocate(struct ion_heap *heap, struct ion_buffer *buffer, - unsigned long size, unsigned long align, + unsigned long size, unsigned long flags) { struct sg_table *table; - ion_phys_addr_t paddr; + phys_addr_t paddr; int ret; - if (align > PAGE_SIZE) - return -EINVAL; - table = kmalloc(sizeof(*table), GFP_KERNEL); if (!table) return -ENOMEM; @@ -77,7 +72,7 @@ static int ion_carveout_heap_allocate(struct ion_heap *heap, if (ret) goto err_free; - paddr = ion_carveout_allocate(heap, size, align); + paddr = ion_carveout_allocate(heap, size); if (paddr == ION_CARVEOUT_ALLOCATE_FAIL) { ret = -ENOMEM; goto err_free_table; @@ -100,14 +95,10 @@ static void ion_carveout_heap_free(struct ion_buffer *buffer) struct ion_heap *heap = buffer->heap; struct sg_table *table = buffer->sg_table; struct page *page = sg_page(table->sgl); - ion_phys_addr_t paddr = PFN_PHYS(page_to_pfn(page)); + phys_addr_t paddr = PFN_PHYS(page_to_pfn(page)); ion_heap_buffer_zero(buffer); - if (ion_buffer_cached(buffer)) - dma_sync_sg_for_device(NULL, table->sgl, table->nents, - DMA_BIDIRECTIONAL); - ion_carveout_free(heap, paddr, buffer->size); sg_free_table(table); kfree(table); @@ -132,8 +123,6 @@ struct ion_heap *ion_carveout_heap_create(struct ion_platform_heap *heap_data) page = pfn_to_page(PFN_DOWN(heap_data->base)); size = heap_data->size; - ion_pages_sync_for_device(NULL, page, size, DMA_BIDIRECTIONAL); - ret = ion_heap_pages_zero(page, size, pgprot_writecombine(PAGE_KERNEL)); if (ret) return ERR_PTR(ret); @@ -156,13 +145,3 @@ struct ion_heap *ion_carveout_heap_create(struct ion_platform_heap *heap_data) return &carveout_heap->heap; } - -void ion_carveout_heap_destroy(struct ion_heap *heap) -{ - struct ion_carveout_heap *carveout_heap = - container_of(heap, struct ion_carveout_heap, heap); - - gen_pool_destroy(carveout_heap->pool); - kfree(carveout_heap); - carveout_heap = NULL; -} |