diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-08-30 09:51:01 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-09-04 12:13:20 +0300 |
| commit | 512317401f6a337e617ec284d20dec5fa3a951ec (patch) | |
| tree | a835b3bccfb35b7c6498d7cede836bebb05b14af /arch | |
| parent | fe9041c245196c6c61091ccc2c74b73ab9a5fc50 (diff) | |
| download | linux-512317401f6a337e617ec284d20dec5fa3a951ec.tar.xz | |
dma-mapping: always use VM_DMA_COHERENT for generic DMA remap
Currently the generic dma remap allocator gets a vm_flags passed by
the caller that is a little confusing. We just introduced a generic
vmalloc-level flag to identify the dma coherent allocations, so use
that everywhere and remove the now pointless argument.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 10 | ||||
| -rw-r--r-- | arch/xtensa/kernel/pci-dma.c | 4 |
2 files changed, 6 insertions, 8 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index aec31f9b918b..fd02c982e36a 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -343,13 +343,12 @@ static void * __dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot, const void *caller) { - return dma_common_contiguous_remap(page, size, VM_DMA_COHERENT, - prot, caller); + return dma_common_contiguous_remap(page, size, prot, caller); } static void __dma_free_remap(void *cpu_addr, size_t size) { - dma_common_free_remap(cpu_addr, size, VM_DMA_COHERENT); + dma_common_free_remap(cpu_addr, size); } #define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_256K @@ -1365,8 +1364,7 @@ static void * __iommu_alloc_remap(struct page **pages, size_t size, gfp_t gfp, pgprot_t prot, const void *caller) { - return dma_common_pages_remap(pages, size, VM_DMA_COHERENT, prot, - caller); + return dma_common_pages_remap(pages, size, prot, caller); } /* @@ -1609,7 +1607,7 @@ void __arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr, } if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0) - dma_common_free_remap(cpu_addr, size, VM_DMA_COHERENT); + dma_common_free_remap(cpu_addr, size); __iommu_remove_mapping(dev, handle, size); __iommu_free_buffer(dev, pages, size, attrs); diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c index 65f05776d827..154979d62b73 100644 --- a/arch/xtensa/kernel/pci-dma.c +++ b/arch/xtensa/kernel/pci-dma.c @@ -167,7 +167,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, if (PageHighMem(page)) { void *p; - p = dma_common_contiguous_remap(page, size, VM_MAP, + p = dma_common_contiguous_remap(page, size, pgprot_noncached(PAGE_KERNEL), __builtin_return_address(0)); if (!p) { @@ -192,7 +192,7 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr, page = virt_to_page(platform_vaddr_to_cached(vaddr)); } else { #ifdef CONFIG_MMU - dma_common_free_remap(vaddr, size, VM_MAP); + dma_common_free_remap(vaddr, size); #endif page = pfn_to_page(PHYS_PFN(dma_to_phys(dev, dma_handle))); } |