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* iommu/shmobile: Depend on ARCH_SHMOBILEPaul Bolle2014-03-041-1/+1
| | | | | | | | | | | Commit 78a2e12f51d9 ("iommu: shmobile: Enable driver compilation with COMPILE_TEST") added an optional dependency on SH_MOBILE. But that Kconfig symbol doesn't exist. It seems ARCH_SHMOBILE was intended. Use that. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* iommu: shmobile: Enable driver compilation with COMPILE_TESTLaurent Pinchart2014-01-071-0/+1
| | | | | | | | | | | | | This helps increasing build testing coverage. The driver doesn't compile on non-ARM platforms due to usage of the ARM DMA IOMMU API, restrict compilation to ARM. Cc: Joerg Roedel <joro@8bytes.org> Cc: iommu@lists.linux-foundation.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* Don't try to compile shmobile-iommu outside of ARMLinus Torvalds2013-11-161-1/+1
| | | | | | | | | | | | | | | | | | Commit 7d02c4d64dbb ("iommu/shmobile: Enable the driver on all ARM platforms") completely brokenly enabled the shmobile-iommu driver under COMPILE_TEST. It's bogus, because it won't compile anywhere else than ARM, since it tries to include <asm/dma-iommu.h>, which is very much ARM-only. So remove the bogus COMPILE_TEST dependency, which just causes allmodconfig to fail on non-ARM platforms. Cc: Joerg Roedel <joro@8bytes.org> Cc: iommu@lists.linux-foundation.org Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Cc: Simon Horman <horms@verge.net.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* iommu/shmobile: Enable the driver on all ARM platformsLaurent Pinchart2013-11-011-1/+1
| | | | | | | | | | | | | | Renesas ARM platforms are transitioning from single-platform to multi-platform kernels using the new ARCH_SHMOBILE_MULTI. Make the driver available on all ARM platforms to enable it on both ARCH_SHMOBILE and ARCH_SHMOBILE_MULTI, and increase build testing coverage with COMPILE_TEST. Cc: Joerg Roedel <joro@8bytes.org> Cc: iommu@lists.linux-foundation.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* x86, build, pci: Fix PCI_MSI build on !SMPThomas Petazzoni2013-10-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit ebd97be635 ('PCI: remove ARCH_SUPPORTS_MSI kconfig option') removed the ARCH_SUPPORTS_MSI option which architectures could select to indicate that they support MSI. Now, all architectures are supposed to build fine when MSI support is enabled: instead of having the architecture tell *when* MSI support can be used, it's up to the architecture code to ensure that MSI support can be enabled. On x86, commit ebd97be635 removed the following line: select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC) Which meant that MSI support was only available when the local APIC and I/O APIC were enabled. While this is always true on SMP or x86-64, it is not necessarily the case on i386 !SMP. The below patch makes sure that the local APIC and I/O APIC support is always enabled when MSI support is enabled. To do so, it: * Ensures the X86_UP_APIC option is not visible when PCI_MSI is enabled. This is the option that allows, on UP machines, to enable or not the APIC support. It is already not visible on SMP systems, or x86-64 systems, for example. We're simply also making it invisible on i386 MSI systems. * Ensures that the X86_LOCAL_APIC and X86_IO_APIC options are 'y' when PCI_MSI is enabled. Notice that this change requires a change in drivers/iommu/Kconfig to avoid a recursive Kconfig dependencey. The AMD_IOMMU option selects PCI_MSI, but was depending on X86_IO_APIC. This dependency is no longer needed: as soon as PCI_MSI is selected, the presence of X86_IO_APIC is guaranteed. Moreover, the AMD_IOMMU already depended on X86_64, which already guaranteed that X86_IO_APIC was enabled, so this dependency was anyway redundant. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: http://lkml.kernel.org/r/1380794354-9079-1-git-send-email-thomas.petazzoni@free-electrons.com Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* iommu/fsl: Freescale PAMU driver and iommu implementation.Varun Sethi2013-08-141-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Following is a brief description of the PAMU hardware: PAMU determines what action to take and whether to authorize the action on the basis of the memory address, a Logical IO Device Number (LIODN), and PAACT table (logically) indexed by LIODN and address. Hardware devices which need to access memory must provide an LIODN in addition to the memory address. Peripheral Access Authorization and Control Tables (PAACTs) are the primary data structures used by PAMU. A PAACT is a table of peripheral access authorization and control entries (PAACE).Each PAACE defines the range of I/O bus address space that is accessible by the LIOD and the associated access capabilities. There are two types of PAACTs: primary PAACT (PPAACT) and secondary PAACT (SPAACT).A given physical I/O device may be able to act as one or more independent logical I/O devices (LIODs). Each such logical I/O device is assigned an identifier called logical I/O device number (LIODN). A LIODN is allocated a contiguous portion of the I/O bus address space called the DSA window for performing DSA operations. The DSA window may optionally be divided into multiple sub-windows, each of which may be used to map to a region in system storage space. The first sub-window is referred to as the primary sub-window and the remaining are called secondary sub-windows. This patch provides the PAMU driver (fsl_pamu.c) and the corresponding IOMMU API implementation (fsl_pamu_domain.c). The PAMU hardware driver (fsl_pamu.c) has been derived from the work done by Ashish Kalra and Timur Tabi. [For iommu group support] Acked-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Timur Tabi <timur@tabi.org> Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* Merge tag 'iommu-updates-v3.11' of ↵Linus Torvalds2013-07-101-0/+13
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "A few updates this time, most important and exiciting (to me) is: - The new ARM SMMU driver. This is a common IOMMU driver that will hopefully be used in a lot of upcoming ARM chips. So the mess in the past where every SOC had its own IOMMU will be over. Besides that: - Some important fixes in the IOMMU unmap path. There are fixes in the common code and also in the AMD IOMMU driver. - Other random fixes" * tag 'iommu-updates-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: MAINTAINERS: add entry for ARM system MMU driver iommu/arm: Add support for ARM Ltd. System MMU architecture documentation/iommu: Add description of ARM System MMU binding iommu: Use %pa and %zx instead of casting iommu/amd: Only unmap large pages from the first pte iommu: Fix compiler warning on pr_debug iommu/amd: Fix memory leak in free_pagetable iommu: Split iommu_unmaps iommu/{vt-d,amd}: Remove multifunction assumption around grouping iommu/omap: fix checkpatch warnings in omap iommu code iommu/omap: fix printk formats for dma_addr_t iommu/vt-d: DMAR reporting table needs at least one DRHD iommu/vt-d: Downgrade the warning if enabling irq remapping fails
| * iommu/arm: Add support for ARM Ltd. System MMU architectureWill Deacon2013-06-251-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for SMMUs implementing the ARM System MMU architecture versions 1 or 2. Both arm and arm64 are supported, although the v7s descriptor format is not used. Cc: Rob Herring <robherring2@gmail.com> Cc: Andreas Herrmann <andreas.herrmann@calxeda.com> Cc: Olav Haugan <ohaugan@codeaurora.org> Cc: Joerg Roedel <joro@8bytes.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Acked-by: Andreas Herrmann <andreas.herrmann@calxeda.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* | powerpc/vfio: Enable on pSeries platformAlexey Kardashevskiy2013-06-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | The enables VFIO on the pSeries platform, enabling user space programs to access PCI devices directly. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/vfio: Enable on PowerNV platformAlexey Kardashevskiy2013-06-201-0/+8
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This initializes IOMMU groups based on the IOMMU configuration discovered during the PCI scan on POWERNV (POWER non virtualized) platform. The IOMMU groups are to be used later by the VFIO driver, which is used for PCI pass through. It also implements an API for mapping/unmapping pages for guest PCI drivers and providing DMA window properties. This API is going to be used later by QEMU-VFIO to handle h_put_tce hypercalls from the KVM guest. The iommu_put_tce_user_mode() does only a single page mapping as an API for adding many mappings at once is going to be added later. Although this driver has been tested only on the POWERNV platform, it should work on any platform which supports TCE tables. As h_put_tce hypercall is received by the host kernel and processed by the QEMU (what involves calling the host kernel again), performance is not the best - circa 220MB/s on 10Gb ethernet network. To enable VFIO on POWER, enable SPAPR_TCE_IOMMU config option and configure VFIO as required. Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* iommu: OMAP: build only on OMAP2+Arnd Bergmann2013-03-091-1/+1
| | | | | | | | | | | | | | The OMAP IOMMU driver intentionally fails to build on OMAP1 platforms, so we should not allow enabling it there. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Joerg Roedel <joro@8bytes.org> Cc: iommu@lists.linux-foundation.org Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Omar Ramirez Luna <omar.luna@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* Merge tag 'iommu-updates-v3.9' of ↵Linus Torvalds2013-02-261-1/+75
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU Updates from Joerg Roedel: "Besides some fixes and cleanups in the code there are three more important changes to point out this time: * New IOMMU driver for the ARM SHMOBILE platform * An IOMMU-API extension for non-paging IOMMUs (required for upcoming PAMU driver) * Rework of the way the Tegra IOMMU driver accesses its registetrs - register windows are easier to extend now. There are also a few changes to non-iommu code, but that is acked by the respective maintainers." * tag 'iommu-updates-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (23 commits) iommu/tegra: assume CONFIG_OF in SMMU driver iommu/tegra: assume CONFIG_OF in gart driver iommu/amd: Remove redundant NULL check before dma_ops_domain_free(). iommu/amd: Initialize device table after dma_ops iommu/vt-d: Zero out allocated memory in dmar_enable_qi iommu/tegra: smmu: Fix incorrect mask for regbase iommu/exynos: Make exynos_sysmmu_disable static ARM: mach-shmobile: r8a7740: Add IPMMU device ARM: mach-shmobile: sh73a0: Add IPMMU device ARM: mach-shmobile: sh7372: Add IPMMU device iommu/shmobile: Add iommu driver for Renesas IPMMU modules iommu: Add DOMAIN_ATTR_WINDOWS domain attribute iommu: Add domain window handling functions iommu: Implement DOMAIN_ATTR_PAGING attribute iommu: Check for valid pgsize_bitmap in iommu_map/unmap iommu: Make sure DOMAIN_ATTR_MAX is really the maximum iommu/tegra: smmu: Change SMMU's dependency on ARCH_TEGRA iommu/tegra: smmu: Use helper function to check for valid register offset iommu/tegra: smmu: Support variable MMIO ranges/blocks iommu/tegra: Add missing spinlock initialization ...
| *-. Merge branches 'core', 'arm/omap', 'iommu/fixes', 'arm/tegra', ↵Joerg Roedel2013-02-191-1/+75
| |\ \ | | | | | | | | | | | | 'arm/shmobile', 'arm/exynos', 'x86/vt-d' and 'x86/amd' into next
| | | * iommu/shmobile: Add iommu driver for Renesas IPMMU modulesHideki EIRAKU2013-02-061-0/+74
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the Renesas IPMMU driver and IOMMU API implementation. The IPMMU module supports the MMU function and the PMB function. The MMU function provides address translation by pagetable compatible with ARMv6. The PMB function provides address translation including tile-linear translation. This patch implements the MMU function. The iommu driver does not register a platform driver directly because: - the register space of the MMU function and the PMB function have a common register (used for settings flush), so they should ideally have a way to appropriately share this register. - the MMU function uses the IOMMU API while the PMB function does not. - the two functions may be used independently. Signed-off-by: Hideki EIRAKU <hdk@igel.co.jp> Signed-off-by: Joerg Roedel <joro@8bytes.org>
| | * iommu/tegra: smmu: Change SMMU's dependency on ARCH_TEGRAHiroshi Doyu2013-02-051-1/+1
| |/ | | | | | | | | | | | | | | | | | | Theoretically TEGRA_IOMMU_SMMU depends on ARCH_TEGRA_3x_SOC and ARCH_TEGRA_114_SOC only. This patch allows a Tegra20 only kernel to enable SMMU(Tegra20 doesn't have a SMMU), which could avoid editing this Kconfig entry every time we add a new chip later. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* / drivers/iommu: remove depends on CONFIG_EXPERIMENTALKees Cook2013-01-211-4/+4
|/ | | | | | | | | | | | | The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. CC: Joerg Roedel <joerg.roedel@amd.com> CC: Hiroshi DOYU <hdoyu@nvidia.com> CC: Jiri Kosina <jkosina@suse.cz> CC: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iommu/amd: Check if IOAPIC information is correctJoerg Roedel2012-09-281-1/+1
| | | | | | | | | | When the IOAPIC information provided in the IVRS table is not correct or not complete the system may not boot at all when interrupt remapping is enabled. So check if this information is correct and print out a firmware bug message when it is not. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* iommu/tegra: smmu: Add device tree support for SMMUHiroshi Doyu2012-06-251-1/+1
| | | | | | | | | | | | | The necessary info is expected to pass from DT. For more precise resource reservation, there shouldn't be any overlapping of register range between SMMU and MC. SMMU register offset needs to be calculated correctly, based on its register bank. Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* iommu: Add DMA window parser, of_get_dma_window()Hiroshi Doyu2012-06-251-0/+4
| | | | | | | | | | | | | | This code was based on: "arch/microblaze/kernel/prom_parse.c" "arch/powerpc/kernel/prom_parse.c" Can replace "of_parse_dma_window()" in the above. This supports different formats flexibly. "prefix" can be configured if any. "busno" and "index" are optionally specified. Set NULL and 0 if not used. Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-05-261-0/+21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull arm-soc driver specific updates from Olof Johansson: "These changes are specific to some driver that may be used by multiple boards or socs. The most significant change in here is the move of the samsung iommu code from a platform specific in-kernel interface to the generic iommu subsystem." Fix up trivial conflicts in arch/arm/mach-exynos/Kconfig * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits) mmc: dt: Consolidate DT bindings iommu/exynos: Add iommu driver for EXYNOS Platforms ARM: davinci: optimize the DMA ISR ARM: davinci: implement DEBUG_LL port choice ARM: tegra: Add SMMU enabler in AHB ARM: tegra: Add Tegra AHB driver Input: pxa27x_keypad add choice to set direct_key_mask Input: pxa27x_keypad direct key may be low active Input: pxa27x_keypad bug fix for direct_key_mask Input: pxa27x_keypad keep clock on as wakeup source ARM: dt: tegra: pinmux changes for USB ULPI ARM: tegra: add USB ULPI PHY reset GPIO to device tree ARM: tegra: don't hard-code USB ULPI PHY reset_gpio ARM: tegra: change pll_p_out4's rate to 24MHz ARM: tegra: fix pclk rate ARM: tegra: reparent sclk to pll_c_out1 ARM: tegra: Add pllc clock init table ARM: dt: tegra cardhu: basic audio support ARM: dt: tegra30.dtsi: Add audio-related nodes ARM: tegra: add AUXDATA required for audio ...
| * iommu/exynos: Add iommu driver for EXYNOS PlatformsKyongHo Cho2012-05-111-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the System MMU driver and IOMMU API implementation for EXYNOS SoC platforms. EXYNOS platforms has more than 10 System MMUs dedicated for each multimedia accelerators. The System MMU driver is already in arc/arm/plat-s5p but it is moved to drivers/iommu due to Ohad Ben-Cohen gathered IOMMU drivers there. Any device driver in EXYNOS platforms that needs to control its System MMU must call platform_set_sysmmu() to inform System MMU driver who will control it. platform_set_sysmmu() is defined in <mach/sysmmu.h> Signed-off-by: KyongHo Cho <pullip.cho@samsung.com> Acked-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | Fix "the the" in various KconfigMasanari Iida2012-04-181-2/+2
|/ | | | | | | Fix typo "the the" in various Kconfig. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ARM: IOMMU: Tegra30: Add iommu_ops for SMMU driverHiroshi DOYU2012-01-261-0/+10
| | | | | | | | | | | Tegra 30 IOMMU H/W, SMMU (System Memory Management Unit). This patch implements struct iommu_ops for SMMU for the upper IOMMU API. This H/W module supports multiple virtual address spaces(domain x4), and manages 2 level H/W translation pagetable. Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* ARM: IOMMU: Tegra20: Add iommu_ops for GART driverHiroshi DOYU2012-01-261-0/+10
| | | | | | | | | | | | | Tegra 20 IOMMU H/W, GART (Graphics Address Relocation Table). This patch implements struct iommu_ops for GART for the upper IOMMU API. This H/W module supports only single virtual address space(domain), and manages a single level 1-to-1 mapping H/W translation page table. [With small fixes by Joerg Roedel] Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* iommu/amd: Implement notifiers for IOMMUv2Joerg Roedel2011-12-141-1/+2
| | | | | | | | | | Since pages are not pinned anymore we need notifications when the VMM changes the page-tables. Use mmu_notifiers for that. Also use the task_exit notifier from the profiling subsystem to shutdown all contexts related to this task. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* iommu/amd: Add driver stub for AMD IOMMUv2 supportJoerg Roedel2011-12-121-0/+8
| | | | | | | | Add a Kconfig option for the optional driver. Since it is optional it can be compiled as a module and will only be loaded when required by another driver. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* iommu/amd: Add support for IOMMUv2 domain modeJoerg Roedel2011-12-121-1/+3
| | | | | | | This patch adds support for protection domains that implement two-level paging for devices. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds2011-10-301-0/+19
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (33 commits) iommu/core: Remove global iommu_ops and register_iommu iommu/msm: Use bus_set_iommu instead of register_iommu iommu/omap: Use bus_set_iommu instead of register_iommu iommu/vt-d: Use bus_set_iommu instead of register_iommu iommu/amd: Use bus_set_iommu instead of register_iommu iommu/core: Use bus->iommu_ops in the iommu-api iommu/core: Convert iommu_found to iommu_present iommu/core: Add bus_type parameter to iommu_domain_alloc Driver core: Add iommu_ops to bus_type iommu/core: Define iommu_ops and register_iommu only with CONFIG_IOMMU_API iommu/amd: Fix wrong shift direction iommu/omap: always provide iommu debug code iommu/core: let drivers know if an iommu fault handler isn't installed iommu/core: export iommu_set_fault_handler() iommu/omap: Fix build error with !IOMMU_SUPPORT iommu/omap: Migrate to the generic fault report mechanism iommu/core: Add fault reporting mechanism iommu/core: Use PAGE_SIZE instead of hard-coded value iommu/core: use the existing IS_ALIGNED macro iommu/msm: ->unmap() should return order of unmapped page ... Fixup trivial conflicts in drivers/iommu/Makefile: "move omap iommu to dedicated iommu folder" vs "Rename the DMAR and INTR_REMAP config options" just happened to touch lines next to each other.
| * iommu/omap: Fix build error with !IOMMU_SUPPORTJoerg Roedel2011-09-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Without this patch it is possible to select the VIDEO_OMAP3 driver which then selects OMAP_IOVMM. But the omap iommu driver is not compiled without IOMMU_SUPPORT enabled. Fix that by forcing OMAP_IOMMU and OMAP_IOVMM are enabled before VIDEO_OMAP3 can be selected. Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: iommu@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * iommu: omap: add Kconfig OMAP dependencyOhad Ben-Cohen2011-08-291-0/+1
| | | | | | | | | | | | | | | | | | Make CONFIG_OMAP_IOMMU depend on CONFIG_ARCH_OMAP so other allmodconfig builds won't fail. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * omap: iommu/iovmm: move to dedicated iommu folderOhad Ben-Cohen2011-08-261-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move OMAP's iommu drivers to the dedicated iommu drivers folder. While OMAP's iovmm (virtual memory manager) driver does not strictly belong to the iommu drivers folder, move it there as well, because it's by no means OMAP-specific (in concept. technically it is still coupled with OMAP's iommu). Eventually, iovmm will be completely replaced with the generic, iommu-based, dma-mapping API. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* | iommu: Rename the DMAR and INTR_REMAP config optionsSuresh Siddha2011-09-211-10/+15
|/ | | | | | | | | | | | | | | | | | | | Change the CONFIG_DMAR to CONFIG_INTEL_IOMMU to be consistent with the other IOMMU options. Rename the CONFIG_INTR_REMAP to CONFIG_IRQ_REMAP to match the irq subsystem name. And define the CONFIG_DMAR_TABLE for the common ACPI DMAR routines shared by both CONFIG_INTEL_IOMMU and CONFIG_IRQ_REMAP. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: yinghai@kernel.org Cc: youquan.song@intel.com Cc: joerg.roedel@amd.com Cc: tony.luck@intel.com Cc: dwmw2@infradead.org Link: http://lkml.kernel.org/r/20110824001456.558630224@sbsiddha-desk.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* iommu: Move iommu Kconfig entries to submenuJoerg Roedel2011-06-211-0/+13
| | | | | | | For better navigation this patch moves the drivers/iommu drivers into its own submenu in Kconfig. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* x86/ia64: intel-iommu: move to drivers/iommu/Ohad Ben-Cohen2011-06-211-0/+49
| | | | | | | | | | | | | | | | | This should ease finding similarities with different platforms, with the intention of solving problems once in a generic framework which everyone can use. Note: to move intel-iommu.c, the declaration of pci_find_upstream_pcie_bridge() has to move from drivers/pci/pci.h to include/linux/pci.h. This is handled in this patch, too. As suggested, also drop DMAR's EXPERIMENTAL tag while we're at it. Compile-tested on x86_64. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* x86: amd_iommu: move to drivers/iommu/Ohad Ben-Cohen2011-06-211-0/+29
| | | | | | | | | | | This should ease finding similarities with different platforms, with the intention of solving problems once in a generic framework which everyone can use. Compile-tested on x86_64. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* msm: iommu: move to drivers/iommu/Ohad Ben-Cohen2011-06-211-0/+16
| | | | | | | | | | | | This should ease finding similarities with different platforms, with the intention of solving problems once in a generic framework which everyone can use. Compile-tested for MSM8X60. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* drivers: iommu: move to a dedicated folderOhad Ben-Cohen2011-06-141-0/+3
Create a dedicated folder for iommu drivers, and move the base iommu implementation over there. Grouping the various iommu drivers in a single location will help finding similar problems shared by different platforms, so they could be solved once, in the iommu framework, instead of solved differently (or duplicated) in each driver. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>