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Stefano Stabellini a4dba13089 xen/arm/arm64: introduce xen_arch_need_swiotlb 
Introduce an arch specific function to find out whether a particular dma
mapping operation needs to bounce on the swiotlb buffer.

On ARM and ARM64, if the page involved is a foreign page and the device
is not coherent, we need to bounce because at unmap time we cannot
execute any required cache maintenance operations (we don't know how to
find the pfn from the mfn).

No change of behaviour for x86.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
 		2014-12-04 12:41:54 +00:00
..
boot Samsung fixes for v3.18 2014-11-27 14:24:41 +01:00
common dma: edma: move device registration to platform code 2014-11-05 18:26:10 -08:00
configs Samsung defconfig update for v3.18 2014-11-27 14:26:52 +01:00
crypto ARM: 8125/1: crypto: enable NEON SHA-1 for big endian 2014-08-27 15:44:11 +01:00
firmware
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include xen/arm/arm64: introduce xen_arch_need_swiotlb 2014-12-04 12:41:54 +00:00
kernel Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-11-28 13:32:47 -08:00
kvm arm/arm64: kvm: drop inappropriate use of kvm_is_mmio_pfn() 2014-11-26 14:40:45 +01:00
lib ARM: 8137/1: fix get_user BE behavior for target variable with size of 8 bytes 2014-09-12 17:38:59 +01:00
mach-at91 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
mach-axxia
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mach-bcm Merge tag 'bcm63138-v4' of http://github.com/brcm/linux into next/soc 2014-09-25 23:50:02 +02:00
mach-berlin
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mach-clps711x ARM: SoC platform changes for 3.18 2014-10-08 17:13:04 -04:00
mach-cns3xxx CNS3xxx: Fix PCIe read size limit. 2014-09-25 23:35:01 +02:00
mach-davinci ARM: SoC DT updates for 3.18 2014-10-08 17:22:23 -04:00
mach-dove
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mach-ebsa110 kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-efm32
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mach-ep93xx kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-exynos Samsung fixes for v3.18 2014-10-14 23:31:13 -07:00
mach-footbridge kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-gemini
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mach-highbank mailbox: rename pl320-ipc specific mailbox.h 2014-10-08 10:39:33 +05:30
mach-hisi ARM: hisi: depend on ARCH_MULTI_V7 2014-10-02 16:40:10 +02:00
mach-imx ARM: imx: clk-vf610: define PLL's clock tree 2014-11-04 13:40:14 +08:00
mach-integrator PCI changes for the v3.18 merge window: 2014-10-09 15:03:49 -04:00
mach-iop13xx kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-iop32x kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-iop33x kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-ixp4xx ARM: ixp4xx: remove compilation warnings in io.h 2014-10-28 22:04:01 +01:00
mach-keystone
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mach-ks8695 kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-lpc32xx ARM: LPC32xx: Fix reset function 2014-09-10 17:25:14 +02:00
mach-mediatek
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mach-meson ARM: meson: add basic support for MesonX SoCs 2014-09-25 17:34:42 +02:00
mach-mmp
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mach-moxart
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mach-msm
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mach-mv78xx0
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mach-mvebu ARM: mvebu: add missing of_node_put() call in coherency.c 2014-11-07 02:56:36 +00:00
mach-mxs
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mach-netx
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mach-nomadik
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mach-nspire
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mach-omap1
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mach-omap2 The i.MX fixes for 3.18, 2nd round: 2014-11-04 20:37:25 -08:00
mach-orion5x ARM: orion5x: Convert pr_warning to pr_warn 2014-09-13 21:29:21 +00:00
mach-picoxcell
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mach-prima2
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mach-pxa ARM: pxa: fix hang on startup with DEBUG_LL 2014-10-20 21:11:40 +02:00
mach-qcom
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mach-realview
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mach-rockchip ARM: rockchip: enable the AMBA bus 2014-09-02 22:27:26 +02:00
mach-rpc kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-s3c24xx Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
mach-s3c64xx Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
mach-s5pv210 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
mach-sa1100 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
mach-shmobile Renesas ARM Based SoC Clock Fixes for v3.18 2014-11-19 17:26:52 +01:00
mach-socfpga arm: socfpga: fix fetching cpu1start_addr for SMP 2014-10-21 14:04:14 -05:00
mach-spear ARM: spear: Remove references to PLAT_SPEAR_SINGLE 2014-09-05 13:33:41 +02:00
mach-sti
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mach-sunxi ARM: sunxi: Remove sun4i reboot code from mach directory 2014-09-11 21:01:47 +02:00
mach-tegra ARM: tegra: irq: fix buggy usage of irq_data irq field 2014-11-27 14:01:55 +01:00
mach-u300 kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
mach-ux500
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mach-versatile
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mach-vexpress vexpress/spc: fix a build warning on array bounds 2014-08-31 10:22:10 -07:00
mach-vt8500 arm, vt8500, LLVMLlinux: Use mcr instead of mcr% for mach-vt8500 2014-09-26 01:49:03 +02:00
mach-w90x900
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mach-zynq ACPI and power management updates for 3.18-rc1 2014-10-09 16:07:43 -04:00
mm Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-11-28 13:32:47 -08:00
net net: bpf: arm: make hole-faulting more robust 2014-09-23 12:40:22 -04:00
nwfpe
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oprofile
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plat-iop kbuild: remove unnecessary variable initializaions 2014-10-02 13:55:02 +02:00
plat-omap Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
plat-orion ARM: orion: Fix for certain sequence of request_irq can cause irq storm 2014-11-01 22:07:45 +00:00
plat-pxa ARM: pxa: ssp: provide platform_device_id for PXA3xx 2014-09-19 01:56:02 +08:00
plat-samsung Samsung fixes for v3.18 2014-10-14 23:31:13 -07:00
plat-versatile
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tools
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vfp
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xen xen/arm/arm64: introduce xen_arch_need_swiotlb 2014-12-04 12:41:54 +00:00
Kconfig xen: features and fixes for 3.18-rc0 2014-10-11 20:29:01 -04:00
Kconfig-nommu
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Kconfig.debug ARM: pxa: fix hang on startup with DEBUG_LL 2014-10-20 21:11:40 +02:00
Makefile Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00