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| author | Stefano Stabellini <sstabellini@kernel.org> | 2017-04-14 00:04:21 +0300 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2017-05-02 12:14:42 +0300 |
| commit | e058632670b709145730a134acc3f83f392f7aa7 (patch) | |
| tree | abecc50c3223d577868dac099c72bfe0c3696c49 /arch/arm64/include/asm/device.h | |
| parent | 4a806016223c6df131280c82f1ed69c820b6a9ff (diff) | |
| download | linux-e058632670b709145730a134acc3f83f392f7aa7.tar.xz | |
xen/arm,arm64: fix xen_dma_ops after 815dd18 "Consolidate get_dma_ops..."
The following commit:
commit 815dd18788fe0d41899f51b91d0560279cf16b0d
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Fri Jan 20 13:04:04 2017 -0800
treewide: Consolidate get_dma_ops() implementations
rearranges get_dma_ops in a way that xen_dma_ops are not returned when
running on Xen anymore, dev->dma_ops is returned instead (see
arch/arm/include/asm/dma-mapping.h:get_arch_dma_ops and
include/linux/dma-mapping.h:get_dma_ops).
Fix the problem by storing dev->dma_ops in dev_archdata, and setting
dev->dma_ops to xen_dma_ops. This way, xen_dma_ops is returned naturally
by get_dma_ops. The Xen code can retrieve the original dev->dma_ops from
dev_archdata when needed. It also allows us to remove __generic_dma_ops
from common headers.
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Tested-by: Julien Grall <julien.grall@arm.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org> [4.11+]
CC: linux@armlinux.org.uk
CC: catalin.marinas@arm.com
CC: will.deacon@arm.com
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
CC: Julien Grall <julien.grall@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/device.h')
| -rw-r--r-- | arch/arm64/include/asm/device.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h index 73d5bab015eb..5a5fa47a6b18 100644 --- a/arch/arm64/include/asm/device.h +++ b/arch/arm64/include/asm/device.h @@ -20,6 +20,9 @@ struct dev_archdata { #ifdef CONFIG_IOMMU_API void *iommu; /* private IOMMU data */ #endif +#ifdef CONFIG_XEN + const struct dma_map_ops *dev_dma_ops; +#endif bool dma_coherent; }; |