diff options
Diffstat (limited to 'drivers/staging/android/ion/ion_system_heap.c')
-rw-r--r-- | drivers/staging/android/ion/ion_system_heap.c | 53 |
1 files changed, 25 insertions, 28 deletions
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index 3ebbb75..c50f2d9 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -24,7 +24,6 @@ #include <linux/slab.h> #include <linux/vmalloc.h> #include "ion.h" -#include "ion_priv.h" #define NUM_ORDERS ARRAY_SIZE(orders) @@ -75,9 +74,6 @@ static struct page *alloc_buffer_page(struct ion_system_heap *heap, page = ion_page_pool_alloc(pool); - if (cached) - ion_pages_sync_for_device(NULL, page, PAGE_SIZE << order, - DMA_BIDIRECTIONAL); return page; } @@ -129,7 +125,7 @@ static struct page *alloc_largest_available(struct ion_system_heap *heap, static int ion_system_heap_allocate(struct ion_heap *heap, struct ion_buffer *buffer, - unsigned long size, unsigned long align, + unsigned long size, unsigned long flags) { struct ion_system_heap *sys_heap = container_of(heap, @@ -143,9 +139,6 @@ static int ion_system_heap_allocate(struct ion_heap *heap, unsigned long size_remaining = PAGE_ALIGN(size); unsigned int max_order = orders[0]; - if (align > PAGE_SIZE) - return -EINVAL; - if (size / PAGE_SIZE > totalram_pages / 2) return -ENOMEM; @@ -327,7 +320,7 @@ err_create_pool: return -ENOMEM; } -struct ion_heap *ion_system_heap_create(struct ion_platform_heap *unused) +static struct ion_heap *__ion_system_heap_create(void) { struct ion_system_heap *heap; @@ -355,24 +348,23 @@ free_heap: return ERR_PTR(-ENOMEM); } -void ion_system_heap_destroy(struct ion_heap *heap) +static int ion_system_heap_create(void) { - struct ion_system_heap *sys_heap = container_of(heap, - struct ion_system_heap, - heap); - int i; + struct ion_heap *heap; - for (i = 0; i < NUM_ORDERS; i++) { - ion_page_pool_destroy(sys_heap->uncached_pools[i]); - ion_page_pool_destroy(sys_heap->cached_pools[i]); - } - kfree(sys_heap); + heap = __ion_system_heap_create(); + if (IS_ERR(heap)) + return PTR_ERR(heap); + heap->name = "ion_system_heap"; + + ion_device_add_heap(heap); + return 0; } +device_initcall(ion_system_heap_create); static int ion_system_contig_heap_allocate(struct ion_heap *heap, struct ion_buffer *buffer, unsigned long len, - unsigned long align, unsigned long flags) { int order = get_order(len); @@ -381,9 +373,6 @@ static int ion_system_contig_heap_allocate(struct ion_heap *heap, unsigned long i; int ret; - if (align > (PAGE_SIZE << order)) - return -EINVAL; - page = alloc_pages(low_order_gfp_flags, order); if (!page) return -ENOMEM; @@ -408,8 +397,6 @@ static int ion_system_contig_heap_allocate(struct ion_heap *heap, buffer->sg_table = table; - ion_pages_sync_for_device(NULL, page, len, DMA_BIDIRECTIONAL); - return 0; free_table: @@ -442,7 +429,7 @@ static struct ion_heap_ops kmalloc_ops = { .map_user = ion_heap_map_user, }; -struct ion_heap *ion_system_contig_heap_create(struct ion_platform_heap *unused) +static struct ion_heap *__ion_system_contig_heap_create(void) { struct ion_heap *heap; @@ -451,10 +438,20 @@ struct ion_heap *ion_system_contig_heap_create(struct ion_platform_heap *unused) return ERR_PTR(-ENOMEM); heap->ops = &kmalloc_ops; heap->type = ION_HEAP_TYPE_SYSTEM_CONTIG; + heap->name = "ion_system_contig_heap"; return heap; } -void ion_system_contig_heap_destroy(struct ion_heap *heap) +static int ion_system_contig_heap_create(void) { - kfree(heap); + struct ion_heap *heap; + + heap = __ion_system_contig_heap_create(); + if (IS_ERR(heap)) + return PTR_ERR(heap); + + ion_device_add_heap(heap); + return 0; } +device_initcall(ion_system_contig_heap_create); + |