aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/arm64/include/asm/pgtable.h2
-rw-r--r--arch/arm64/mm/dma-mapping.c4
2 files changed, 1 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index ae10350f75ec..da92265bd798 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -280,8 +280,6 @@ static inline int has_transparent_hugepage(void)
280 __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRnE) | PTE_PXN | PTE_UXN) 280 __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRnE) | PTE_PXN | PTE_UXN)
281#define pgprot_writecombine(prot) \ 281#define pgprot_writecombine(prot) \
282 __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC) | PTE_PXN | PTE_UXN) 282 __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC) | PTE_PXN | PTE_UXN)
283#define pgprot_dmacoherent(prot) \
284 __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC) | PTE_PXN | PTE_UXN)
285#define __HAVE_PHYS_MEM_ACCESS_PROT 283#define __HAVE_PHYS_MEM_ACCESS_PROT
286struct file; 284struct file;
287extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, 285extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 5bba6be1a3f1..0ba347e59f06 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -33,10 +33,8 @@ EXPORT_SYMBOL(dma_ops);
33static pgprot_t __get_dma_pgprot(struct dma_attrs *attrs, pgprot_t prot, 33static pgprot_t __get_dma_pgprot(struct dma_attrs *attrs, pgprot_t prot,
34 bool coherent) 34 bool coherent)
35{ 35{
36 if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) 36 if (!coherent || dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
37 return pgprot_writecombine(prot); 37 return pgprot_writecombine(prot);
38 else if (!coherent)
39 return pgprot_dmacoherent(prot);
40 return prot; 38 return prot;
41} 39}
42 40