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authorChristoph Hellwig <hch@lst.de>2018-03-19 11:38:24 +0100
committerIngo Molnar <mingo@kernel.org>2018-03-20 10:01:59 +0100
commitb6e05477c10c12e36141558fc14f04b00ea634d4 (patch)
tree10fa56168c0fdeb896a6c845fadac8bbd112f554 /arch/x86/pci
parente7de6c7cc207be78369d45fb833d7d53aeda47f8 (diff)
downloadlinux-b6e05477c10c12e36141558fc14f04b00ea634d4.tar.bz2
dma/direct: Handle the memory encryption bit in common code
Give the basic phys_to_dma() and dma_to_phys() helpers a __-prefix and add the memory encryption mask to the non-prefixed versions. Use the __-prefixed versions directly instead of clearing the mask again in various places. 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/20180319103826.12853-13-hch@lst.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/sta2x11-fixup.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index eac58e03f43c..7a5bafb76d77 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -207,11 +207,11 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
}
/**
- * phys_to_dma - Return the DMA AMBA address used for this STA2x11 device
+ * __phys_to_dma - Return the DMA AMBA address used for this STA2x11 device
* @dev: device for a PCI device
* @paddr: Physical address
*/
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
{
if (!dev->archdata.is_sta2x11)
return paddr;
@@ -223,7 +223,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
* @dev: device for a PCI device
* @daddr: STA2x11 AMBA DMA address
*/
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
{
if (!dev->archdata.is_sta2x11)
return daddr;