diff options
Diffstat (limited to 'arch/arm64/mm/dma-mapping.c')
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index c4284c432ae8..bdacead5b802 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -20,6 +20,7 @@ #include <linux/gfp.h> #include <linux/acpi.h> #include <linux/bootmem.h> +#include <linux/cache.h> #include <linux/export.h> #include <linux/slab.h> #include <linux/genalloc.h> @@ -30,7 +31,7 @@ #include <asm/cacheflush.h> -static int swiotlb __read_mostly; +static int swiotlb __ro_after_init; static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot, bool coherent) @@ -168,7 +169,7 @@ static void *__dma_alloc(struct device *dev, size_t size, return ptr; /* remove any dirty cache lines on the kernel alias */ - __dma_flush_range(ptr, ptr + size); + __dma_flush_area(ptr, size); /* create a coherent mapping */ page = virt_to_page(ptr); @@ -387,7 +388,7 @@ static int __init atomic_pool_init(void) void *page_addr = page_address(page); memset(page_addr, 0, atomic_pool_size); - __dma_flush_range(page_addr, page_addr + atomic_pool_size); + __dma_flush_area(page_addr, atomic_pool_size); atomic_pool = gen_pool_create(PAGE_SHIFT, -1); if (!atomic_pool) @@ -548,7 +549,7 @@ fs_initcall(dma_debug_do_init); /* Thankfully, all cache ops are by VA so we can ignore phys here */ static void flush_page(struct device *dev, const void *virt, phys_addr_t phys) { - __dma_flush_range(virt, virt + PAGE_SIZE); + __dma_flush_area(virt, PAGE_SIZE); } static void *__iommu_alloc_attrs(struct device *dev, size_t size, |