diff options
Diffstat (limited to 'arch/mips/loongson64/common/dma-swiotlb.c')
-rw-r--r-- | arch/mips/loongson64/common/dma-swiotlb.c | 71 |
1 files changed, 1 insertions, 70 deletions
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c index a5e50f2ec301..a4f554bf1232 100644 --- a/arch/mips/loongson64/common/dma-swiotlb.c +++ b/arch/mips/loongson64/common/dma-swiotlb.c @@ -1,60 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 -#include <linux/mm.h> +#include <linux/dma-direct.h> #include <linux/init.h> -#include <linux/dma-mapping.h> -#include <linux/scatterlist.h> #include <linux/swiotlb.h> -#include <linux/bootmem.h> - -#include <asm/bootinfo.h> -#include <boot_param.h> -#include <dma-coherence.h> - -static void *loongson_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) -{ - void *ret = swiotlb_alloc(dev, size, dma_handle, gfp, attrs); - - mb(); - return ret; -} - -static dma_addr_t loongson_dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir, - unsigned long attrs) -{ - dma_addr_t daddr = swiotlb_map_page(dev, page, offset, size, - dir, attrs); - mb(); - return daddr; -} - -static int loongson_dma_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, - unsigned long attrs) -{ - int r = swiotlb_map_sg_attrs(dev, sg, nents, dir, attrs); - mb(); - - return r; -} - -static void loongson_dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction dir) -{ - swiotlb_sync_single_for_device(dev, dma_handle, size, dir); - mb(); -} - -static void loongson_dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction dir) -{ - swiotlb_sync_sg_for_device(dev, sg, nents, dir); - mb(); -} dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) { @@ -80,23 +27,7 @@ phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr) return daddr; } -static const struct dma_map_ops loongson_dma_map_ops = { - .alloc = loongson_dma_alloc_coherent, - .free = swiotlb_free, - .map_page = loongson_dma_map_page, - .unmap_page = swiotlb_unmap_page, - .map_sg = loongson_dma_map_sg, - .unmap_sg = swiotlb_unmap_sg_attrs, - .sync_single_for_cpu = swiotlb_sync_single_for_cpu, - .sync_single_for_device = loongson_dma_sync_single_for_device, - .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, - .sync_sg_for_device = loongson_dma_sync_sg_for_device, - .mapping_error = swiotlb_dma_mapping_error, - .dma_supported = swiotlb_dma_supported, -}; - void __init plat_swiotlb_setup(void) { swiotlb_init(1); - mips_dma_map_ops = &loongson_dma_map_ops; } |