system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-19 01:39:28 +00:00
Code Issues Packages Projects Releases Wiki Activity
linux/drivers/iommu
History
Robin Murphy 119ff305b0 iommu/io-pgtable-arm-v7s: Support lockless operation 
Mirroring the LPAE implementation, rework the v7s code to be robust
against concurrent operations. The same two potential races exist, and
are solved in the same manner, with the fixed 2-level structure making
life ever so slightly simpler.

What complicates matters compared to LPAE, however, is large page
entries, since we can't update a block of 16 PTEs atomically, nor assume
available software bits to do clever things with. As most users are
never likely to do partial unmaps anyway (due to DMA API rules), it
doesn't seem unreasonable for this case to remain behind a serialising
lock; we just pull said lock down into the bowels of the implementation
so it's well out of the way of the normal call paths.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-06-23 17:58:00 +01:00
..
amd_iommu.c x86/events, drivers/iommu/amd: Introduce amd_iommu_get_num_iommus() 2017-03-30 09:53:53 +02:00
amd_iommu_init.c x86/events, drivers/amd/iommu: Prepare for multiple IOMMUs support 2017-03-30 09:53:55 +02:00
amd_iommu_proto.h x86/events, drivers/amd/iommu: Prepare for multiple IOMMUs support 2017-03-30 09:53:55 +02:00
amd_iommu_types.h x86/events, drivers/iommu/amd: Introduce amd_iommu_get_num_iommus() 2017-03-30 09:53:53 +02:00
amd_iommu_v2.c iommu/amd: Fix incorrect error handling in amd_iommu_bind_pasid() 2017-04-24 12:33:34 +02:00
arm-smmu-v3.c iommu/io-pgtable: Introduce explicit coherency 2017-06-23 17:58:00 +01:00
arm-smmu.c iommu/io-pgtable: Introduce explicit coherency 2017-06-23 17:58:00 +01:00
dma-iommu.c iommu/dma: Plumb in the per-CPU IOVA caches 2017-04-03 12:45:03 +02:00
dmar.c iommu/dmar: Remove redundant ' != 0' when check return code 2017-03-22 15:42:17 +01:00
exynos-iommu.c Merge branches 'arm/exynos', 'arm/omap', 'arm/rockchip', 'arm/mediatek', 'arm/smmu', 'arm/core', 'x86/vt-d', 'x86/amd' and 'core' into next 2017-05-04 18:06:17 +02:00
fsl_pamu.c powerpc/fsl: Move fsl_guts.h out of arch/powerpc 2015-10-21 18:05:50 -05:00
fsl_pamu.h iommu: Remove pci.h include from trace/events/iommu.h 2017-04-29 00:20:49 +02:00
fsl_pamu_domain.c iommu/fsl: Convert to device_group call-back 2015-10-22 00:00:49 +02:00
fsl_pamu_domain.h iommu/fsl: Make use of domain_alloc and domain_free 2015-03-31 15:32:14 +02:00
intel-iommu.c Merge branches 'arm/exynos', 'arm/omap', 'arm/rockchip', 'arm/mediatek', 'arm/smmu', 'arm/core', 'x86/vt-d', 'x86/amd' and 'core' into next 2017-05-04 18:06:17 +02:00
intel-svm.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h> 2017-03-02 08:42:28 +01:00
intel_irq_remapping.c iommu/vt-d: Don't print the failure message when booting non-kdump kernel 2017-04-28 23:38:42 +02:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm-v7s: Support lockless operation 2017-06-23 17:58:00 +01:00
io-pgtable-arm.c iommu/io-pgtable-arm: Support lockless operation 2017-06-23 17:58:00 +01:00
io-pgtable.c iommu/io-pgtable: Fix a brace coding style issue. 2016-04-05 15:34:29 +02:00
io-pgtable.h iommu/io-pgtable: Introduce explicit coherency 2017-06-23 17:58:00 +01:00
iommu-sysfs.c iommu: Make iommu_device_link/unlink take a struct iommu_device 2017-02-10 13:44:57 +01:00
iommu-traces.c iommu: Add iommu_error class event to iommu trace 2013-09-25 11:07:04 +02:00
iommu.c Merge branches 'arm/exynos', 'arm/omap', 'arm/rockchip', 'arm/mediatek', 'arm/smmu', 'arm/core', 'x86/vt-d', 'x86/amd' and 'core' into next 2017-05-04 18:06:17 +02:00
iova.c Merge branches 'arm/exynos', 'arm/omap', 'arm/rockchip', 'arm/mediatek', 'arm/smmu', 'arm/core', 'x86/vt-d', 'x86/amd' and 'core' into next 2017-05-04 18:06:17 +02:00
ipmmu-vmsa.c iommu/ipmmu-vmsa: Restrict IOMMU Domain Geometry to 32-bit address space 2017-02-06 13:09:43 +01:00
irq_remapping.c x86/cpufeature: Replace cpu_has_apic with boot_cpu_has() usage 2016-04-13 11:37:41 +02:00
irq_remapping.h iommu, x86: Setup Posted-Interrupts capability for Intel iommu 2015-06-12 11:33:52 +02:00
Kconfig vfio: ccw: basic implementation for vfio_ccw driver 2017-03-31 12:55:04 +02:00
Makefile Merge branches 'x86/amd', 'x86/vt-d', 'arm/exynos', 'arm/mediatek', 'arm/msm', 'arm/rockchip', 'arm/smmu' and 'core' into next 2016-07-26 16:02:37 +02:00
msm_iommu.c iommu: Remove iommu_register_instance interface 2017-02-10 14:54:37 +01:00
msm_iommu.h iommu/msm: Make use of iommu_device_register interface 2017-02-10 13:44:57 +01:00
msm_iommu_hw-8xxx.h iommu/msm: Move mach includes to iommu directory 2013-08-06 11:18:03 -07:00
mtk_iommu.c iommu: Remove iommu_register_instance interface 2017-02-10 14:54:37 +01:00
mtk_iommu.h iommu/mediatek: Make use of iommu_device_register interface 2017-02-10 13:44:57 +01:00
mtk_iommu_v1.c iommu/mediatek: Teach MTK-IOMMUv1 about 'struct iommu_device' 2017-04-03 13:17:02 +02:00
of_iommu.c iommu: of: Handle IOMMU lookup failure with deferred probing or error 2017-04-20 16:31:07 +02:00
omap-iommu-debug.c iommu/omap: Align code with open parenthesis 2016-04-05 17:53:20 +02:00
omap-iommu.c iommu/omap: Add iommu-group support 2017-04-20 16:33:59 +02:00
omap-iommu.h iommu/omap: Add iommu-group support 2017-04-20 16:33:59 +02:00
omap-iopgtable.h iommu/omap: Use BIT(x) macros in omap-iopgtable.h 2015-08-03 16:04:42 +02:00
rockchip-iommu.c Merge branches 'arm/exynos', 'arm/omap', 'arm/rockchip', 'arm/mediatek', 'arm/smmu', 'arm/core', 'x86/vt-d', 'x86/amd' and 'core' into next 2017-05-04 18:06:17 +02:00
s390-iommu.c iommu/s390: Drop duplicate header pci.h 2016-11-29 17:37:58 +01:00
tegra-gart.c Merge branches 'iommu/fixes', 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/tegra' and 'core' into next 2015-04-02 13:33:19 +02:00
tegra-smmu.c iommu: Remove pci.h include from trace/events/iommu.h 2017-04-29 00:20:49 +02:00