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| author | Christoph Hellwig <hch@lst.de> | 2018-03-19 11:38:15 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-03-20 10:01:56 +0100 |
| commit | fec777c385b6376048fc4b08f039366545b335cd (patch) | |
| tree | a613e68a5746d74d69bf3aa06818b05119d8e500 /arch/x86/include/asm/dma-mapping.h | |
| parent | 038d07a283d62336b32cc23b62aecdf9418cfc11 (diff) | |
| download | linux-stable-fec777c385b6376048fc4b08f039366545b335cd.tar.gz linux-stable-fec777c385b6376048fc4b08f039366545b335cd.tar.bz2 linux-stable-fec777c385b6376048fc4b08f039366545b335cd.zip | |
x86/dma: Use DMA-direct (CONFIG_DMA_DIRECT_OPS=y)
The generic DMA-direct (CONFIG_DMA_DIRECT_OPS=y) implementation is now
functionally equivalent to the x86 nommu dma_map implementation, so
switch over to using it.
That includes switching from using x86_dma_supported in various IOMMU
drivers to use dma_direct_supported instead, which provides the same
functionality.
Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: iommu@lists.linux-foundation.org
Link: http://lkml.kernel.org/r/20180319103826.12853-4-hch@lst.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 545bf3721bc0..df9816b385eb 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -36,14 +36,6 @@ int arch_dma_supported(struct device *dev, u64 mask); bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp); #define arch_dma_alloc_attrs arch_dma_alloc_attrs -extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag, - unsigned long attrs); - -extern void dma_generic_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_addr, - unsigned long attrs); - static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp) { if (dev->coherent_dma_mask <= DMA_BIT_MASK(24)) |