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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 19:20:54 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 19:20:54 -0700 |
commit | f72e24a1240b78f421649c4d88f5c24ab1c896a1 (patch) | |
tree | 90bed3bf33ae0abf5636dafcc3eda3cc354612b0 /arch/x86/include | |
parent | 2c669275dc3245e2866a0eea15bda8ec8d1ab8db (diff) | |
parent | 1655cf8829d82d367d8fdb5cb58e5885d7d2a391 (diff) | |
download | linux-f72e24a1240b78f421649c4d88f5c24ab1c896a1.tar.bz2 |
Merge tag 'dma-mapping-4.13' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping infrastructure from Christoph Hellwig:
"This is the first pull request for the new dma-mapping subsystem
In this new subsystem we'll try to properly maintain all the generic
code related to dma-mapping, and will further consolidate arch code
into common helpers.
This pull request contains:
- removal of the DMA_ERROR_CODE macro, replacing it with calls to
->mapping_error so that the dma_map_ops instances are more self
contained and can be shared across architectures (me)
- removal of the ->set_dma_mask method, which duplicates the
->dma_capable one in terms of functionality, but requires more
duplicate code.
- various updates for the coherent dma pool and related arm code
(Vladimir)
- various smaller cleanups (me)"
* tag 'dma-mapping-4.13' of git://git.infradead.org/users/hch/dma-mapping: (56 commits)
ARM: dma-mapping: Remove traces of NOMMU code
ARM: NOMMU: Set ARM_DMA_MEM_BUFFERABLE for M-class cpus
ARM: NOMMU: Introduce dma operations for noMMU
drivers: dma-mapping: allow dma_common_mmap() for NOMMU
drivers: dma-coherent: Introduce default DMA pool
drivers: dma-coherent: Account dma_pfn_offset when used with device tree
dma: Take into account dma_pfn_offset
dma-mapping: replace dmam_alloc_noncoherent with dmam_alloc_attrs
dma-mapping: remove dmam_free_noncoherent
crypto: qat - avoid an uninitialized variable warning
au1100fb: remove a bogus dma_free_nonconsistent call
MAINTAINERS: add entry for dma mapping helpers
powerpc: merge __dma_set_mask into dma_set_mask
dma-mapping: remove the set_dma_mask method
powerpc/cell: use the dma_supported method for ops switching
powerpc/cell: clean up fixed mapping dma_ops initialization
tile: remove dma_supported and mapping_error methods
xen-swiotlb: remove xen_swiotlb_set_dma_mask
arm: implement ->dma_supported instead of ->set_dma_mask
mips/loongson64: implement ->dma_supported instead of ->set_dma_mask
...
Diffstat (limited to 'arch/x86/include')
-rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 5 | ||||
-rw-r--r-- | arch/x86/include/asm/iommu.h | 2 |
2 files changed, 2 insertions, 5 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 08a0838b83fb..398c79889f5c 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -19,8 +19,6 @@ # define ISA_DMA_BIT_MASK DMA_BIT_MASK(32) #endif -#define DMA_ERROR_CODE 0 - extern int iommu_merge; extern struct device x86_dma_fallback_dev; extern int panic_on_overflow; @@ -35,9 +33,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp); #define arch_dma_alloc_attrs arch_dma_alloc_attrs -#define HAVE_ARCH_DMA_SUPPORTED 1 -extern int dma_supported(struct device *hwdev, u64 mask); - extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, gfp_t flag, unsigned long attrs); diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h index 793869879464..fca144a104e4 100644 --- a/arch/x86/include/asm/iommu.h +++ b/arch/x86/include/asm/iommu.h @@ -6,6 +6,8 @@ extern int force_iommu, no_iommu; extern int iommu_detected; extern int iommu_pass_through; +int x86_dma_supported(struct device *dev, u64 mask); + /* 10 seconds */ #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) |