summaryrefslogtreecommitdiff
path: root/drivers/iommu/Kconfig
AgeCommit message (Collapse)AuthorFilesLines
2018-03-20iommu/intel-iommu: Enable CONFIG_DMA_DIRECT_OPS=y and clean up ↵Christoph Hellwig1-0/+1
intel_{alloc,free}_coherent() Use the dma_direct_*() helpers and clean up the code flow. 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/20180319103826.12853-9-hch@lst.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-03-20iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}()Christoph Hellwig1-0/+1
This cleans up the code a lot by removing duplicate logic. Tested-by: Tom Lendacky <thomas.lendacky@amd.com> Tested-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Joerg Roedel <jroedel@suse.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/20180319103826.12853-8-hch@lst.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-09-19iommu/qcom: Depend on HAS_DMA to fix compile errorGeert Uytterhoeven1-0/+1
If NO_DMA=y: warning: (IPMMU_VMSA && ARM_SMMU && ARM_SMMU_V3 && QCOM_IOMMU) selects IOMMU_IO_PGTABLE_LPAE which has unmet direct dependencies (IOMMU_SUPPORT && HAS_DMA && (ARM || ARM64 || COMPILE_TEST && !GENERIC_ATOMIC64)) and drivers/iommu/io-pgtable-arm.o: In function `__arm_lpae_sync_pte': io-pgtable-arm.c:(.text+0x206): undefined reference to `bad_dma_ops' drivers/iommu/io-pgtable-arm.o: In function `__arm_lpae_free_pages': io-pgtable-arm.c:(.text+0x6a6): undefined reference to `bad_dma_ops' drivers/iommu/io-pgtable-arm.o: In function `__arm_lpae_alloc_pages': io-pgtable-arm.c:(.text+0x812): undefined reference to `bad_dma_ops' io-pgtable-arm.c:(.text+0x81c): undefined reference to `bad_dma_ops' io-pgtable-arm.c:(.text+0x862): undefined reference to `bad_dma_ops' drivers/iommu/io-pgtable-arm.o: In function `arm_lpae_run_tests': io-pgtable-arm.c:(.init.text+0x86): undefined reference to `alloc_io_pgtable_ops' io-pgtable-arm.c:(.init.text+0x47c): undefined reference to `free_io_pgtable_ops' drivers/iommu/qcom_iommu.o: In function `qcom_iommu_init_domain': qcom_iommu.c:(.text+0x1ce): undefined reference to `alloc_io_pgtable_ops' drivers/iommu/qcom_iommu.o: In function `qcom_iommu_domain_free': qcom_iommu.c:(.text+0x754): undefined reference to `free_io_pgtable_ops' QCOM_IOMMU selects IOMMU_IO_PGTABLE_LPAE, which bypasses its dependency on HAS_DMA. Make QCOM_IOMMU depend on HAS_DMA to fix this. Fixes: 0ae349a0f33fb040 ("iommu/qcom: Add qcom_iommu") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-09-19iommu: Add missing dependenciesGuenter Roeck1-2/+2
parisc:allmodconfig, xtensa:allmodconfig, and possibly others generate the following Kconfig warning. warning: (IPMMU_VMSA && ARM_SMMU && ARM_SMMU_V3 && QCOM_IOMMU) selects IOMMU_IO_PGTABLE_LPAE which has unmet direct dependencies (IOMMU_SUPPORT && HAS_DMA && (ARM || ARM64 || COMPILE_TEST && !GENERIC_ATOMIC64)) IOMMU_IO_PGTABLE_LPAE depends on (COMPILE_TEST && !GENERIC_ATOMIC64), so any configuration option selecting it needs to have the same dependencies. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-09-01Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', ↵Joerg Roedel1-0/+13
'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next
2017-08-15iommu/qcom: Add qcom_iommuRob Clark1-0/+10
An iommu driver for Qualcomm "B" family devices which do implement the ARM SMMU spec, but not in a way that is compatible with how the arm-smmu driver is designed. It seems SMMU_SCR1.GASRAE=1 so the global register space is not accessible. This means it needs to get configuration from devicetree instead of setting it up dynamically. In the end, other than register definitions, there is not much code to share with arm-smmu (other than what has already been refactored out into the pgtable helpers). Signed-off-by: Rob Clark <robdclark@gmail.com> Tested-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-15iommu/pamu: Make driver depend on CONFIG_PHYS_64BITJoerg Roedel1-0/+1
Certain address calculations in the driver make the assumption that phys_addr_t and dma_addr_t are 64 bit wide. Force this by depending on CONFIG_PHYS_64BIT to be set. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-15iommu/pamu: Let PAMU depend on PCIJoerg Roedel1-0/+1
The driver does not compile when PCI is not selected, so make it depend on it. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-04iommu/exynos: prevent building on big-endian kernelsArnd Bergmann1-0/+1
Since we print the correct warning, an allmodconfig build is no longer clean but always prints it, which defeats compile-testing: drivers/iommu/exynos-iommu.c:58:2: error: #warning "revisit driver if we can enable big-endian ptes" [-Werror=cpp] This replaces the #warning with a dependency, moving warning text into a comment. Fixes: 1f59adb1766d ("iommu/exynos: Replace non-existing big-endian Kconfig option") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-06-28Merge branches 'iommu/fixes', 'arm/rockchip', 'arm/renesas', 'arm/smmu', ↵Joerg Roedel1-3/+3
'arm/core', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next
2017-06-23iommu/io-pgtable: depend on !GENERIC_ATOMIC64 when using COMPILE_TEST with LPAEWill Deacon1-1/+1
The LPAE/ARMv8 page table format relies on the ability to read and write 64-bit page table entries in an atomic fashion. With the move to a lockless implementation, we also need support for cmpxchg64 to resolve races when installing table entries concurrently. Unfortunately, not all architectures support cmpxchg64, so the code can fail to compiler when building for these architectures using COMPILE_TEST. Rather than disable COMPILE_TEST altogether, instead check that GENERIC_ATOMIC64 is not selected, which is a reasonable indication that the architecture has support for 64-bit cmpxchg. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-05-17iommu/ipmmu-vmsa: Drop LPAE Kconfig dependencyMagnus Damm1-1/+0
Neither the ARM page table code enabled by IOMMU_IO_PGTABLE_LPAE nor the IPMMU_VMSA driver actually depends on ARM_LPAE, so get rid of the dependency. Tested with ipmmu-vmsa on r8a7794 ALT and a kernel config using: # CONFIG_ARM_LPAE is not set Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-05-17iommu/ipmmu-vmsa: Add new IOMMU_DOMAIN_DMA opsMagnus Damm1-0/+1
Introduce an alternative set of iommu_ops suitable for 64-bit ARM as well as 32-bit ARM when CONFIG_IOMMU_DMA=y. Also adjust the Kconfig to depend on ARM or IOMMU_DMA. Initialize the device from ->xlate() when CONFIG_IOMMU_DMA=y. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-05-17iommu/rockchip: Enable Rockchip IOMMU on ARM64Simon Xue1-1/+1
This patch makes it possible to compile the rockchip-iommu driver on ARM64, so that it can be used with 64-bit SoCs equipped with this type of IOMMU. Signed-off-by: Simon Xue <xxm@rock-chips.com> Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com> Signed-off-by: Tomasz Figa <tfiga@chromium.org> Reviewed-by: Matthias Brugger <mbrugger@suse.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-03-31vfio: ccw: basic implementation for vfio_ccw driverDong Jia Shi1-0/+8
To make vfio support subchannel devices, we need a css driver for the vfio subchannels. This patch adds a basic vfio-ccw subchannel driver for this purpose. To enable VFIO for vfio-ccw, enable S390_CCW_IOMMU config option and configure VFIO as required. Acked-by: Pierre Morel <pmorel@linux.vnet.ibm.com> Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Message-Id: <20170317031743.40128-5-bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2017-02-06iommu/mediatek: Remove bogus 'select' statementsArnd Bergmann1-3/+0
The mediatek IOMMU driver enables some drivers that it does not directly rely on, and that causes a warning for build testing: warning: (MTK_IOMMU_V1) selects COMMON_CLK_MT2701_VDECSYS which has unmet direct dependencies (COMMON_CLK && COMMON_CLK_MT2701) warning: (MTK_IOMMU_V1) selects COMMON_CLK_MT2701_IMGSYS which has unmet direct dependencies (COMMON_CLK && COMMON_CLK_MT2701) warning: (MTK_IOMMU_V1) selects COMMON_CLK_MT2701_MMSYS which has unmet direct dependencies (COMMON_CLK && COMMON_CLK_MT2701) This removes the select statements. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-16iommu/arm-smmu: Support non-PCI devices with SMMUv3Robin Murphy1-1/+1
With the device <-> stream ID relationship suitably abstracted and of_xlate() hooked up, the PCI dependency now looks, and is, entirely arbitrary. Any bus using the of_dma_configure() mechanism will work, so extend support to the platform and AMBA buses which do just that. Acked-by: Will Deacon <will.deacon@arm.com> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-07-26Merge branches 'x86/amd', 'x86/vt-d', 'arm/exynos', 'arm/mediatek', ↵Joerg Roedel1-1/+20
'arm/msm', 'arm/rockchip', 'arm/smmu' and 'core' into next
2016-07-13iommu/amd: Select IOMMU_IOVA for AMD IOMMUJoerg Roedel1-0/+1
Include the generic IOVA code to make use of it in the AMD IOMMU driver too. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-06-21iommu/msm: Remove driver BROKENSricharan R1-1/+0
Now that the driver is DT adapted, bus_set_iommu gets called only when on compatible matching. So the driver should not break multiplatform builds now. So remove the BROKEN config. Signed-off-by: Sricharan R <sricharan@codeaurora.org> Tested-by: Archit Taneja <architt@codeaurora.org> Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-06-21iommu/msm: use generic ARMV7S short descriptor pagetable opsSricharan R1-0/+1
This iommu uses the armv7 short descriptor format. So use the generic ARMV7S pagetable ops instead of rewriting the same stuff in the driver. Signed-off-by: Sricharan R <sricharan@codeaurora.org> Tested-by: Archit Taneja <architt@codeaurora.org> Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-06-21iommu/mediatek: add support for mtk iommu generation one HWHonghui Zhang1-0/+18
Mediatek SoC's M4U has two generations of HW architcture. Generation one uses flat, one layer pagetable, and was shipped with ARM architecture, it only supports 4K size page mapping. MT2701 SoC uses this generation one m4u HW. Generation two uses the ARM short-descriptor translation table format for address translation, and was shipped with ARM64 architecture, MT8173 uses this generation two m4u HW. All the two generation iommu HW only have one iommu domain, and all its iommu clients share the same iova address. These two generation m4u HW have slit different register groups and register offset, but most register names are the same. This patch add iommu support for mediatek SoC mt2701. Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-05-09Merge branches 'arm/io-pgtable', 'arm/rockchip', 'arm/omap', 'x86/vt-d', ↵Joerg Roedel1-12/+1
'ppc/pamu', 'core' and 'x86/amd' into next
2016-05-09iommu/amd: Remove statistics codeJoerg Roedel1-10/+0
The statistics are not really used for anything and should be replaced by generic and per-device statistic counters. Remove the code for now. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-04-07powerpc: Fix incorrect PPC32 PAMU dependencyAndy Fleming1-2/+1
The Freescale PAMU can be enabled on both 32 and 64-bit Power chips. Commit 477ab7a19ce restricted PAMU to PPC32. PPC covers both. Signed-off-by: Andy Fleming <afleming@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-03-21Merge branches 'arm/rockchip', 'arm/exynos', 'arm/smmu', 'arm/mediatek', ↵Joerg Roedel1-3/+39
'arm/io-pgtable', 'arm/renesas' and 'core' into next
2016-02-29iommu/dma: Fix NEED_SG_DMA_LENGTH dependencyRobin Murphy1-1/+1
IOMMU_DMA does indeed depend on scatterlists having a DMA length, but the NEED_SG_DMA_LENGTH symbol should be selected, not depended upon. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-02-29iommu/mediatek: Select ARM_DMA_USE_IOMMUArnd Bergmann1-0/+1
The newly added Mediatek IOMMU driver uses the IOMMU_DMA infrastructure, but unlike other such drivers, it does not select 'ARM_DMA_USE_IOMMU', which is a prerequisite, leading to a link error: warning: (MTK_IOMMU) selects IOMMU_DMA which has unmet direct dependencies (IOMMU_SUPPORT && NEED_SG_DMA_LENGTH) drivers/iommu/built-in.o: In function `iommu_put_dma_cookie': mtk_iommu.c:(.text+0x11fe): undefined reference to `put_iova_domain' drivers/iommu/built-in.o: In function `iommu_dma_init_domain': mtk_iommu.c:(.text+0x1316): undefined reference to `init_iova_domain' drivers/iommu/built-in.o: In function `__iommu_dma_unmap': mtk_iommu.c:(.text+0x1380): undefined reference to `find_iova' This adds the same select that the other drivers have. On a related note, I wonder if we should just always select ARM_DMA_USE_IOMMU whenever any IOMMU driver is enabled. Are there any cases where we would enable an IOMMU but not use it? Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 0df4fabe208d ("iommu/mediatek: Add mt8173 IOMMU driver") Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-02-25iommu/mediatek: Add mt8173 IOMMU driverYong Wu1-0/+16
This patch adds support for mediatek m4u (MultiMedia Memory Management Unit). Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-02-25iommu/ipmmu-vmsa: Use ARCH_RENESASSimon Horman1-1/+1
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE. This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-02-25iommu/exynos: Add support for v5 SYSMMUMarek Szyprowski1-1/+1
This patch adds support for v5 of SYSMMU controller, found in Samsung Exynos 5433 SoCs. The main difference of v5 is support for 36-bit physical address space and some changes in register layout and core clocks hanging. This patch also adds support for ARM64 architecture, which is used by Exynos 5433 SoCs. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-02-17iommu/io-pgtable: Add ARMv7 short descriptor supportRobin Murphy1-0/+19
Add a nearly-complete ARMv7 short descriptor implementation, omitting only a few legacy and CPU-centric aspects which shouldn't be necessary for IOMMU API use anyway. Reviewed-by: Yong Wu <yong.wu@mediatek.com> Tested-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-12-14iommu/shmobile: Remove unused Renesas IPMMU/IPMMUI driverGeert Uytterhoeven1-75/+0
As of commit 44d88c754e57a6d9 ("ARM: shmobile: Remove legacy SoC code for R-Mobile A1"), the Renesas IPMMU/IPMMUI driver is no longer used. In theory it could still be used on SH-Mobile AG5 and R-Mobile A1 SoCs, but that requires adding DT support to the driver, which is not planned. Remove the driver, it can be resurrected from git history when needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-11-06Merge tag 'iommu-updates-v4.4' of ↵Linus Torvalds1-0/+15
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu updates from Joerg Roedel: "This time including: - A new IOMMU driver for s390 pci devices - Common dma-ops support based on iommu-api for ARM64. The plan is to use this as a basis for ARM32 and hopefully other architectures as well in the future. - MSI support for ARM-SMMUv3 - Cleanups and dead code removal in the AMD IOMMU driver - Better RMRR handling for the Intel VT-d driver - Various other cleanups and small fixes" * tag 'iommu-updates-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (41 commits) iommu/vt-d: Fix return value check of parse_ioapics_under_ir() iommu/vt-d: Propagate error-value from ir_parse_ioapic_hpet_scope() iommu/vt-d: Adjust the return value of the parse_ioapics_under_ir iommu: Move default domain allocation to iommu_group_get_for_dev() iommu: Remove is_pci_dev() fall-back from iommu_group_get_for_dev iommu/arm-smmu: Switch to device_group call-back iommu/fsl: Convert to device_group call-back iommu: Add device_group call-back to x86 iommu drivers iommu: Add generic_device_group() function iommu: Export and rename iommu_group_get_for_pci_dev() iommu: Revive device_group iommu-ops call-back iommu/amd: Remove find_last_devid_on_pci() iommu/amd: Remove first/last_device handling iommu/amd: Initialize amd_iommu_last_bdf for DEV_ALL iommu/amd: Cleanup buffer allocation iommu/amd: Remove cmd_buf_size and evt_buf_size from struct amd_iommu iommu/amd: Align DTE flag definitions iommu/amd: Remove old alias handling code iommu/amd: Set alias DTE in do_attach/do_detach iommu/amd: WARN when __[attach|detach]_device are called with irqs enabled ...
2015-11-06Merge git://git.infradead.org/intel-iommuLinus Torvalds1-0/+10
Pull intel iommu updates from David Woodhouse: "This adds "Shared Virtual Memory" (aka PASID support) for the Intel IOMMU. This allows devices to do DMA using process address space, translated through the normal CPU page tables for the relevant mm. With corresponding support added to the i915 driver, this has been tested with the graphics device on Skylake. We don't have the required TLP support in our PCIe root ports for supporting discrete devices yet, so it's only integrated devices that can do it so far" * git://git.infradead.org/intel-iommu: (23 commits) iommu/vt-d: Fix rwxp flags in SVM device fault callback iommu/vt-d: Expose struct svm_dev_ops without CONFIG_INTEL_IOMMU_SVM iommu/vt-d: Clean up pasid_enabled() and ecs_enabled() dependencies iommu/vt-d: Handle Caching Mode implementations of SVM iommu/vt-d: Fix SVM IOTLB flush handling iommu/vt-d: Use dev_err(..) in intel_svm_device_to_iommu(..) iommu/vt-d: fix a loop in prq_event_thread() iommu/vt-d: Fix IOTLB flushing for global pages iommu/vt-d: Fix address shifting in page request handler iommu/vt-d: shift wrapping bug in prq_event_thread() iommu/vt-d: Fix NULL pointer dereference in page request error case iommu/vt-d: Implement SVM_FLAG_SUPERVISOR_MODE for kernel access iommu/vt-d: Implement SVM_FLAG_PRIVATE_PASID to allocate unique PASIDs iommu/vt-d: Add callback to device driver on page faults iommu/vt-d: Implement page request handling iommu/vt-d: Generalise DMAR MSI setup to allow for page request events iommu/vt-d: Implement deferred invalidate for SVM iommu/vt-d: Add basic SVM PASID support iommu/vt-d: Always enable PASID/PRI PCI capabilities before ATS iommu/vt-d: Add initial support for PASID tables ...
2015-11-02Merge branches 'x86/vt-d', 'arm/omap', 'arm/smmu', 's390', 'core' and ↵Joerg Roedel1-0/+15
'x86/amd' into next Conflicts: drivers/iommu/amd_iommu_types.h
2015-10-15iommu/arm-smmu: Add support for MSI on SMMUv3Marc Zyngier1-0/+1
Despite being a platform device, the SMMUv3 is capable of signaling interrupts using MSIs. Hook it into the platform MSI framework and enjoy faults being reported in a new and exciting way. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> [will: tidied up the binding example and reworked most of the code] Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-10-15iommu: Implement common IOMMU ops for DMA mappingRobin Murphy1-0/+7
Taking inspiration from the existing arch/arm code, break out some generic functions to interface the DMA-API to the IOMMU-API. This will do the bulk of the heavy lifting for IOMMU-backed dma-mapping. Since associating an IOVA allocator with an IOMMU domain is a fairly common need, rather than introduce yet another private structure just to do this for ourselves, extend the top-level struct iommu_domain with the notion. A simple opaque cookie allows reuse by other IOMMU API users with their various different incompatible allocator types. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-10-15iommu/vt-d: Add basic SVM PASID supportDavid Woodhouse1-0/+1
This provides basic PASID support for endpoint devices, tested with a version of the i915 driver. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2015-10-15iommu/vt-d: Always enable PASID/PRI PCI capabilities before ATSDavid Woodhouse1-0/+1
The behaviour if you enable PASID support after ATS is undefined. So we have to enable it first, even if we don't know whether we'll need it. This is safe enough; unless we set up a context that permits it, the device can't actually *do* anything with it. Also shift the feature detction to dmar_insert_one_dev_info() as it only needs to happen once. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2015-10-15iommu/vt-d: Add initial support for PASID tablesDavid Woodhouse1-0/+8
Add CONFIG_INTEL_IOMMU_SVM, and allocate PASID tables on supported hardware. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2015-10-13Merge tag 'iommu-fixes-v4.3-rc5' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: "A few fixes piled up: - Fix for a suspend/resume issue where PCI probing code overwrote dev->irq for the MSI irq of the AMD IOMMU. - Fix for a kernel crash when a 32 bit PCI device was assigned to a KVM guest. - Fix for a possible memory leak in the VT-d driver - A couple of fixes for the ARM-SMMU driver" * tag 'iommu-fixes-v4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Fix NULL pointer deref on device detach iommu/amd: Prevent binding other PCI drivers to IOMMU PCI devices iommu/vt-d: Fix memory leak in dmar_insert_one_dev_info() iommu/arm-smmu: Use correct address mask for CMD_TLBI_S2_IPA iommu/arm-smmu: Ensure IAS is set correctly for AArch32-capable SMMUs iommu/io-pgtable-arm: Don't use dma_to_phys()
2015-10-06iommu/s390: Add iommu api for s390 pci devicesGerald Schaefer1-0/+7
This adds an IOMMU API implementation for s390 PCI devices. Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-10-02Merge git://git.infradead.org/intel-iommuLinus Torvalds1-1/+1
Pull IOVA fixes from David Woodhouse: "The main fix here is the first one, fixing the over-allocation of size-aligned requests. The other patches simply make the existing IOVA code available to users other than the Intel VT-d driver, with no functional change. I concede the latter really *should* have been submitted during the merge window, but since it's basically risk-free and people are waiting to build on top of it and it's my fault I didn't get it in, I (and they) would be grateful if you'd take it" * git://git.infradead.org/intel-iommu: iommu: Make the iova library a module iommu: iova: Export symbols iommu: iova: Move iova cache management to the iova library iommu/iova: Avoid over-allocating when size-aligned
2015-09-22iommu/io-pgtable-arm: Don't use dma_to_phys()Robin Murphy1-2/+1
In checking whether DMA addresses differ from physical addresses, using dma_to_phys() is actually the wrong thing to do, since it may hide any DMA offset, which is precisely one of the things we are checking for. Simply casting between the two address types, whilst ugly, is in fact the appropriate course of action. Further care (and ugliness) is also necessary in the comparison to avoid truncation if phys_addr_t and dma_addr_t differ in size. We can also reject any device with a fixed DMA offset up-front at page table creation, leaving the allocation-time check for the more subtle cases like bounce buffering due to an incorrect DMA mask. Furthermore, we can then fix the hackish KConfig dependency so that architectures without a dma_to_phys() implementation may still COMPILE_TEST (or even use!) the code. The true dependency is on the DMA API, so use the appropriate symbol for that. Signed-off-by: Robin Murphy <robin.murphy@arm.com> [will: folded in selftest fix from Yong Wu] Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-09-09Merge tag 'iommu-updates-v4.3' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu updates for from Joerg Roedel: "This time the IOMMU updates are mostly cleanups or fixes. No big new features or drivers this time. In particular the changes include: - Bigger cleanup of the Domain<->IOMMU data structures and the code that manages them in the Intel VT-d driver. This makes the code easier to understand and maintain, and also easier to keep the data structures in sync. It is also a preparation step to make use of default domains from the IOMMU core in the Intel VT-d driver. - Fixes for a couple of DMA-API misuses in ARM IOMMU drivers, namely in the ARM and Tegra SMMU drivers. - Fix for a potential buffer overflow in the OMAP iommu driver's debug code - A couple of smaller fixes and cleanups in various drivers - One small new feature: Report domain-id usage in the Intel VT-d driver to easier detect bugs where these are leaked" * tag 'iommu-updates-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (83 commits) iommu/vt-d: Really use upper context table when necessary x86/vt-d: Fix documentation of DRHD iommu/fsl: Really fix init section(s) content iommu/io-pgtable-arm: Unmap and free table when overwriting with block iommu/io-pgtable-arm: Move init-fn declarations to io-pgtable.h iommu/msm: Use BUG_ON instead of if () BUG() iommu/vt-d: Access iomem correctly iommu/vt-d: Make two functions static iommu/vt-d: Use BUG_ON instead of if () BUG() iommu/vt-d: Return false instead of 0 in irq_remapping_cap() iommu/amd: Use BUG_ON instead of if () BUG() iommu/amd: Make a symbol static iommu/amd: Simplify allocation in irq_remapping_alloc() iommu/tegra-smmu: Parameterize number of TLB lines iommu/tegra-smmu: Factor out tegra_smmu_set_pde() iommu/tegra-smmu: Extract tegra_smmu_pte_get_use() iommu/tegra-smmu: Use __GFP_ZERO to allocate zeroed pages iommu/tegra-smmu: Remove PageReserved manipulation iommu/tegra-smmu: Convert to use DMA API iommu/tegra-smmu: smmu_flush_ptc() wants device addresses ...
2015-08-13memory: tegra: Add Tegra210 supportThierry Reding1-1/+1
Add the table of memory clients and SWGROUPs for Tegra210 to enable SMMU support for this new SoC. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-06iommu/io-pgtable-arm: Allow appropriate DMA API useRobin Murphy1-1/+2
Currently, users of the LPAE page table code are (ab)using dma_map_page() as a means to flush page table updates for non-coherent IOMMUs. Since from the CPU's point of view, creating IOMMU page tables *is* passing DMA buffers to a device (the IOMMU's page table walker), there's little reason not to use the DMA API correctly. Allow IOMMU drivers to opt into DMA API operations for page table allocation and updates by providing their appropriate device pointer. The expectation is that an LPAE IOMMU should have a full view of system memory, so use streaming mappings to avoid unnecessary pressure on ZONE_DMA, and treat any DMA translation as a warning sign. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-07-28iommu: Make the iova library a moduleSakari Ailus1-1/+1
The iova library has use outside the intel-iommu driver, thus make it a module. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2015-06-26Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds1-0/+3
Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.2. I've one other new driver from freescale on my radar, it's been posted and reviewed, I'd just like to get someone to give it a last look, so maybe I'll send it or maybe I'll leave it. There is no major nouveau changes in here, Ben was working on something big, and we agreed it was a bit late, there wasn't anything else he considered urgent to merge. There might be another msm pull for some bits that are waiting on arm-soc, I'll see how we time it. This touches some "of" stuff, acks are in place except for the fixes to the build in various configs,t hat I just applied. Summary: New drivers: - virtio-gpu: KMS only pieces of driver for virtio-gpu in qemu. This is just the first part of this driver, enough to run unaccelerated userspace on. As qemu merges more we'll start adding the 3D features for the virgl 3d work. - amdgpu: a new driver from AMD to driver their newer GPUs. (VI+) It contains a new cleaner userspace API, and is a clean break from radeon moving forward, that AMD are going to concentrate on. It also contains a set of register headers auto generated from AMD internal database. core: - atomic modesetting API completed, enabled by default now. - Add support for mode_id blob to atomic ioctl to complete interface. - bunch of Displayport MST fixes - lots of misc fixes. panel: - new simple panels - fix some long-standing build issues with bridge drivers radeon: - VCE1 support - add a GPU reset counter for userspace - lots of fixes. amdkfd: - H/W debugger support module - static user-mode queues - support killing all the waves when a process terminates - use standard DECLARE_BITMAP i915: - Add Broxton support - S3, rotation support for Skylake - RPS booting tuning - CPT modeset sequence fixes - ns2501 dither support - enable cmd parser on haswell - cdclk handling fixes - gen8 dynamic pte allocation - lots of atomic conversion work exynos: - Add atomic modesetting support - Add iommu support - Consolidate drm driver initialization - and MIC, DECON and MIPI-DSI support for exynos5433 omapdrm: - atomic modesetting support (fixes lots of things in rewrite) tegra: - DP aux transaction fixes - iommu support fix msm: - adreno a306 support - various dsi bits - various 64-bit fixes - NV12MT support rcar-du: - atomic and misc fixes sti: - fix HDMI timing complaince tilcdc: - use drm component API to access tda998x driver - fix module unloading qxl: - stability fixes" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (872 commits) drm/nouveau: Pause between setting gpu to D3hot and cutting the power drm/dp/mst: close deadlock in connector destruction. drm: Always enable atomic API drm/vgem: Set unique to "vgem" of: fix a build error to of_graph_get_endpoint_by_regs function drm/dp/mst: take lock around looking up the branch device on hpd irq drm/dp/mst: make sure mst_primary mstb is valid in work function of: add EXPORT_SYMBOL for of_graph_get_endpoint_by_regs ARM: dts: rename the clock of MIPI DSI 'pll_clk' to 'sclk_mipi' drm/atomic: Don't set crtc_state->enable manually drm/exynos: dsi: do not set TE GPIO direction by input drm/exynos: dsi: add support for MIC driver as a bridge drm/exynos: dsi: add support for Exynos5433 drm/exynos: dsi: make use of array for clock access drm/exynos: dsi: make use of driver data for static values drm/exynos: dsi: add macros for register access drm/exynos: dsi: rename pll_clk to sclk_clk drm/exynos: mic: add MIC driver of: add helper for getting endpoint node of specific identifiers drm/exynos: add Exynos5433 decon driver ...
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-25 15:44:53 +0300