diff options
| 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 /drivers/iommu/intel-iommu.c | |
| parent | 038d07a283d62336b32cc23b62aecdf9418cfc11 (diff) | |
| download | lwn-fec777c385b6376048fc4b08f039366545b335cd.tar.gz lwn-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 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 582fd01cb7d1..fd899b2a12bb 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -45,6 +45,7 @@ #include <linux/pci-ats.h> #include <linux/memblock.h> #include <linux/dma-contiguous.h> +#include <linux/dma-direct.h> #include <linux/crash_dump.h> #include <asm/irq_remapping.h> #include <asm/cacheflush.h> @@ -3871,7 +3872,7 @@ const struct dma_map_ops intel_dma_ops = { .unmap_page = intel_unmap_page, .mapping_error = intel_mapping_error, #ifdef CONFIG_X86 - .dma_supported = x86_dma_supported, + .dma_supported = dma_direct_supported, #endif }; |