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2012-10-24iommu/tegra: smmu: Fix deadly typoHiro Sugawara1-1/+1
Fix a deadly typo in macro definition. Cc: stable@vger.kernel.org Signed-off-by: Hiro Sugawara <hsugawara@nvidia.com> Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-10-16iommu/amd: Work around wrong IOAPIC device-id in IVRS tableJoerg Roedel1-7/+32
On some systems the BIOS puts the wrong device-id for the IO-APIC into the IVRS table. The result is that interrupt remapping is not working for the IO-APIC irqs. This usually means a kernel panic at boot because the timer is not working. Fix this kernel panic by disabling interrupt remapping if this problem is discovered in the IVRS table. Reported-by: Andrew Oakley <andrew@ado.is-a-geek.net> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-10-08Merge tag 'iommu-updates-v3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds10-44/+1071
Pull IOMMU updates from Joerg Roedel: "This time the IOMMU updates contain a bunch of fixes and cleanups to various IOMMU drivers and the DMA debug code. New features are the code for IRQ remapping support with the AMD IOMMU (preperation for that was already merged in the last release) and a debugfs interface to export some statistics in the NVidia Tegra IOMMU driver." * tag 'iommu-updates-v3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (27 commits) iommu/amd: Remove obsolete comment line dma-debug: Remove local BUS_NOTIFY_UNBOUND_DRIVER define iommu/amd: Fix possible use after free in get_irq_table() iommu/amd: Report irq remapping through IOMMU-API iommu/amd: Print message to system log when irq remapping is enabled iommu/irq: Use amd_iommu_irq_ops if supported iommu/amd: Make sure irq remapping still works on dma init failure iommu/amd: Add initialization routines for AMD interrupt remapping iommu/amd: Add call-back routine for HPET MSI iommu/amd: Implement MSI routines for interrupt remapping iommu/amd: Add IOAPIC remapping routines iommu/amd: Add routines to manage irq remapping tables iommu/amd: Add IRTE invalidation routine iommu/amd: Make sure IOMMU is not considered to translate itself iommu/amd: Split device table initialization into irq and dma part iommu/amd: Check if IOAPIC information is correct iommu/amd: Allocate data structures to keep track of irq remapping tables iommu/amd: Add slab-cache for irq remapping tables iommu/amd: Keep track of HPET and IOAPIC device ids iommu/amd: Fix features reporting ...
2012-10-02Merge branches 'dma-debug', 'iommu/fixes', 'arm/tegra', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'x86/amd-irq-remapping' into nextJoerg Roedel10-44/+1071
Conflicts: drivers/iommu/amd_iommu_init.c
2012-10-02iommu/amd: Remove obsolete comment lineJoerg Roedel1-1/+0
IRQ_DELAYED_DISABLE does not exist anymore. So this comment is obsolete. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-10-02iommu/amd: Fix possible use after free in get_irq_table()Dan Carpenter1-0/+1
We should return NULL on error instead of the freed pointer. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-10-01Merge tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-3/+3
Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug - Protect acpi_pci_drivers and acpi_pci_roots (Taku Izumi) - Clear host bridge resource info to avoid issue when releasing (Yinghai Lu) - Notify acpi_pci_drivers when hot-plugging host bridges (Jiang Liu) - Use standard list ops for acpi_pci_drivers (Jiang Liu) Device hotplug - Use pci_get_domain_bus_and_slot() to close hotplug races (Jiang Liu) - Remove fakephp driver (Bjorn Helgaas) - Fix VGA ref count in hotplug remove path (Yinghai Lu) - Allow acpiphp to handle PCIe ports without native hotplug (Jiang Liu) - Implement resume regardless of pciehp_force param (Oliver Neukum) - Make pci_fixup_irqs() work after init (Thierry Reding) Miscellaneous - Add pci_pcie_type(dev) and remove pci_dev.pcie_type (Yijing Wang) - Factor out PCI Express Capability accessors (Jiang Liu) - Add pcibios_window_alignment() so powerpc EEH can use generic resource assignment (Gavin Shan) - Make pci_error_handlers const (Stephen Hemminger) - Cleanup drivers/pci/remove.c (Bjorn Helgaas) - Improve Vendor-Specific Extended Capability support (Bjorn Helgaas) - Use standard list ops for bus->devices (Bjorn Helgaas) - Avoid kmalloc in pci_get_subsys() and pci_get_class() (Feng Tang) - Reassign invalid bus number ranges (Intel DP43BF workaround) (Yinghai Lu)" * tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (102 commits) PCI: acpiphp: Handle PCIe ports without native hotplug capability PCI/ACPI: Use acpi_driver_data() rather than searching acpi_pci_roots PCI/ACPI: Protect acpi_pci_roots list with mutex PCI/ACPI: Use acpi_pci_root info rather than looking it up again PCI/ACPI: Pass acpi_pci_root to acpi_pci_drivers' add/remove interface PCI/ACPI: Protect acpi_pci_drivers list with mutex PCI/ACPI: Notify acpi_pci_drivers when hot-plugging PCI root bridges PCI/ACPI: Use normal list for struct acpi_pci_driver PCI/ACPI: Use DEVICE_ACPI_HANDLE rather than searching acpi_pci_roots PCI: Fix default vga ref_count ia64/PCI: Clear host bridge aperture struct resource x86/PCI: Clear host bridge aperture struct resource PCI: Stop all children first, before removing all children Revert "PCI: Use hotplug-safe pci_get_domain_bus_and_slot()" PCI: Provide a default pcibios_update_irq() PCI: Discard __init annotations for pci_fixup_irqs() and related functions PCI: Use correct type when freeing bus resource list PCI: Check P2P bridge for invalid secondary/subordinate range PCI: Convert "new_id"/"remove_id" into generic pci_bus driver attributes xen-pcifront: Use hotplug-safe pci_get_domain_bus_and_slot() ...
2012-09-28iommu/amd: Report irq remapping through IOMMU-APIJoerg Roedel1-0/+2
Report the availability of irq remapping through the IOMMU-API to allow KVM device passthrough again without additional module parameter overrides. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Print message to system log when irq remapping is enabledJoerg Roedel1-0/+2
Print an indicator to dmesg to easily find out if interrupt remapping is enabled of a given system. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/irq: Use amd_iommu_irq_ops if supportedJoerg Roedel1-0/+5
Finally enable interrupt remapping for AMD systems. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Make sure irq remapping still works on dma init failureJoerg Roedel1-9/+31
Do not deinitialize the AMD IOMMU driver completly when interrupt remapping is already in use but the initialization of the DMA layer fails for some reason. Make sure the IOMMU can still be used to remap interrupts. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Add initialization routines for AMD interrupt remappingJoerg Roedel4-0/+67
Add the six routines required to setup interrupt remapping with the AMD IOMMU. Also put it all together into the AMD specific irq_remap_ops. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Add call-back routine for HPET MSIJoerg Roedel1-0/+26
Add a routine to setup a HPET MSI interrupt for remapping. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Implement MSI routines for interrupt remappingJoerg Roedel1-0/+74
Add routines to setup interrupt remapping for MSI interrupts. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Add IOAPIC remapping routinesJoerg Roedel1-0/+126
Add the routine to setup interrupt remapping for ioapic interrupts. Also add a routine to change the affinity of an irq and to free an irq allocation for interrupt remapping. The last two functions will also be used for MSI interrupts. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Add routines to manage irq remapping tablesJoerg Roedel1-0/+228
Add routines to: * Alloc remapping tables and single entries from these tables * Change entries in the tables * Free entries in the table Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Add IRTE invalidation routineJoerg Roedel2-0/+30
Add routine to invalidate the IOMMU cache for interupt translations. Also include the IRTE caches when flushing all IOMMU caches. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Make sure IOMMU is not considered to translate itselfJoerg Roedel1-0/+7
The IVRS table usually includes the IOMMU device. But the IOMMU does never translate itself, so make sure the IOMMU driver knows this. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Split device table initialization into irq and dma partJoerg Roedel1-1/+18
When the IOMMU is enabled very early (as with irq-remapping) some devices are still in BIOS hand. When dma is blocked early this can cause lots of IO_PAGE_FAULTs. So delay the DMA initialization and do it right before the dma_ops are initialized. To be secure, block all interrupts by default when irq-remapping is enabled in the system. They will be reenabled on demand later. Without blocking interrupts by default devices can issue arbitrary interrupts by sending special DMA packets to the CPU that look like MSI messages. This is especially dangerous when a device is assigned to a KVM guest because the guest can then DoS the host. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Check if IOAPIC information is correctJoerg Roedel2-4/+25
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>
2012-09-28iommu/amd: Allocate data structures to keep track of irq remapping tablesJoerg Roedel2-0/+25
To easily map device ids to interrupt remapping table entries a new lookup table is necessary. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Add slab-cache for irq remapping tablesJoerg Roedel4-0/+39
The irq remapping tables for the AMD IOMMU need to be aligned on a 128 byte boundary. Create a seperate slab-cache to guarantee this alignment. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Keep track of HPET and IOAPIC device idsJoerg Roedel3-2/+103
The IVRS ACPI table provides information about the IOAPICs and the HPETs available in the system and which PCI device ID they use in transactions. Save that information for later usage in interrupt remapping. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-09-28iommu/amd: Fix features reportingBorislav Petkov1-1/+1
When the AMD IOMMU doesn't have extended features, an empty line gets issued in dmesg like so: [ 3.061417] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40 [ 3.066757] <--- [ 3.068294] pci 0000:00:00.2: irq 72 for MSI/MSI-X [ 3.081213] AMD-Vi: Lazy IO/TLB flushing enabled Fix it. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28iommu/amd: Fix wrong assumption in iommu-group specific codeJoerg Roedel1-2/+4
The new IOMMU groups code in the AMD IOMMU driver makes the assumption that there is a pci_dev struct available for all device-ids listed in the IVRS ACPI table. Unfortunatly this assumption is not true and so this code causes a NULL pointer dereference at boot on some systems. Fix it by making sure the given pointer is never NULL when passed to the group specific code. The real fix is larger and will be queued for v3.7. Reported-by: Florian Dazinger <florian@dazinger.net> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-18intel-iommu: Default to non-coherent for domains unattached to iommusAlex Williamson1-1/+3
domain_update_iommu_coherency() currently defaults to setting domains as coherent when the domain is not attached to any iommus. This allows for a window in domain_context_mapping_one() where such a domain can update context entries non-coherently, and only after update the domain capability to clear iommu_coherency. This can be seen using KVM device assignment on VT-d systems that do not support coherency in the ecap register. When a device is added to a guest, a domain is created (iommu_coherency = 0), the device is attached, and ranges are mapped. If we then hot unplug the device, the coherency is updated and set to the default (1) since no iommus are attached to the domain. A subsequent attach of a device makes use of the same dmar domain (now marked coherent) updates context entries with coherency enabled, and only disables coherency as the last step in the process. To fix this, switch domain_update_iommu_coherency() to use the safer, non-coherent default for domains not attached to iommus. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Tested-by: Donald Dutile <ddutile@redhat.com> Acked-by: Donald Dutile <ddutile@redhat.com> Acked-by: Chris Wright <chrisw@sous-sol.org> Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-18iommu/exynos: use list_del_init instead of list_del/INIT_LIST_HEADWei Yongjun1-2/+1
Using list_del_init() instead of list_del() + INIT_LIST_HEAD(). spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-18dma: tegra: move smmu.h into SMMU driverStephen Warren1-1/+40
There's no need to place these defines into arch/arm/mach-tegra/include/. Move them into the SMMU driver to clean up mach-tegra, as a pre-requisite for single-zImage. Signed-off-by: Stephen Warren <swarren@nvidia.com> Cc: Hiroshi Doyu <hdoyu@nvidia.com> Acked-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-18iommu/tegra: smmu: Use debugfs_create_dir for directoryHiroshi Doyu1-17/+35
The commit c3b1a35 "debugfs: make sure that debugfs_create_file() gets used only for regulars" doesn't allow to use debugfs_create_file() for dir. Keep debugfs data in smmu_device instead of directory's i_private. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-18iommu/amd: Fix some typosFrank Arnold3-12/+12
Fix some typos in comments and user-visible messages. No functional changes. Signed-off-by: Frank Arnold <frank.arnold@amd.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-18iommu/amd: remove duplicated include from amd_iommu_init.cWei Yongjun1-1/+0
Remove duplicated include. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-13Merge commit 'v3.6-rc5' into nextBjorn Helgaas6-25/+75
* commit 'v3.6-rc5': (1098 commits) Linux 3.6-rc5 HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured Remove user-triggerable BUG from mpol_to_str xen/pciback: Fix proper FLR steps. uml: fix compile error in deliver_alarm() dj: memory scribble in logi_dj Fix order of arguments to compat_put_time[spec|val] xen: Use correct masking in xen_swiotlb_alloc_coherent. xen: fix logical error in tlb flushing xen/p2m: Fix one-off error in checking the P2M tree directory. powerpc: Don't use __put_user() in patch_instruction powerpc: Make sure IPI handlers see data written by IPI senders powerpc: Restore correct DSCR in context switch powerpc: Fix DSCR inheritance in copy_thread() powerpc: Keep thread.dscr and thread.dscr_inherit in sync powerpc: Update DSCR on all CPUs when writing sysfs dscr_default powerpc/powernv: Always go into nap mode when CPU is offline powerpc: Give hypervisor decrementer interrupts their own handler powerpc/vphn: Fix arch_update_cpu_topology() return value ARM: gemini: fix the gemini build ... Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c drivers/rapidio/devices/tsi721.c
2012-08-23PCI: Introduce pci_pcie_type(dev) to replace pci_dev->pcie_typeYijing Wang1-3/+3
Introduce an inline function pci_pcie_type(dev) to extract PCIe device type from pci_dev->pcie_flags_reg field, and prepare for removing pci_dev->pcie_type. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-08-10iommu/amd: Fix wrong check for ARRAY_SIZE()Joerg Roedel1-1/+1
The check in the for-loop is broken. Fix it and the boot-crash it causes in AMD IOMMUv2 systems. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-10irq_remap: disable IRQ remapping if any IOAPIC lacks an IOMMUSeth Forshee1-5/+13
The ACPI tables in the Macbook Air 5,1 define a single IOAPIC with id 2, but the only remapping unit described in the DMAR table matches id 0. Interrupt remapping fails as a result, and the kernel panics with the message "timer doesn't work through Interrupt-remapped IO-APIC." To fix this, check each IOAPIC for a corresponding IOMMU. If an IOMMU is not found, do not allow IRQ remapping to be enabled. v2: Move check to parse_ioapics_under_ir(), raise log level to KERN_ERR, and add FW_BUG to the log message v3: Skip check if IOMMU doesn't support interrupt remapping and remove existing check that the IOMMU count equals the IOAPIC count Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-06iommu/amd: Fix ACS path checkingAlex Williamson1-3/+22
SR-IOV can create buses without a bridge. There may be other cases where this happens as well. In these cases skip to the parent bus and continue testing devices there. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-06iommu/intel: Fix ACS path checkingAlex Williamson1-3/+22
SR-IOV can create buses without a bridge. There may be other cases where this happens as well. In these cases skip to the parent bus and continue testing devices there. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-06iommu/amd: Fix pci_request_acs() call-placeJoerg Roedel1-3/+3
The pci_request_acs() function needs to be called before PCI probing to be effective. So move it to another call-place to ensure that. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-03iommu/tegra: smmu: debugfs for TLB/PTC statisticsHiroshi Doyu1-12/+190
Add debugfs entries to collect TLB/PTC statistics. $ echo "reset" > /sys/kernel/debug/smmu/mc/{tlb,ptc} $ echo "on" > /sys/kernel/debug/smmu/mc/{tlb,ptc} $ echo "off" > /sys/kernel/debug/smmu/mc/{tlb,ptc} $ cat /sys/kernel/debug/smmu/mc/{tlb,ptc} hit:0014910c miss:00014d22 The above format is: hit:<HIT count><SPC>miss:<MISS count><SPC><CR+LF> fscanf(fp, "hit:%lx miss:%lx", &hit, &miss); Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-03iommu/exynos: Fix build errorSachin Kamat1-3/+3
Fixes the following build error introduced by commit 3177bb76a8 ("iommu/exynos: Implement DOMAIN_ATTR_GEOMETRY attribute"): drivers/iommu/exynos-iommu.c: In function ‘exynos_iommu_domain_init’: drivers/iommu/exynos-iommu.c:735:2: error: ‘dom’ undeclared (first use in this function) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-03iommu/tegra: smmu: Fix error initial value at domain_initHiroshi Doyu1-1/+1
err initial value should be -EAGAIN. Otherwise 2nd iteration always fails in the case as[0] is occupied. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-03iommu/tegra: smmu: Cleanup with lesser nestHiroshi Doyu1-5/+8
Small clean up with lesser nest for readability. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-03iommu/intel: add missing free_domain_memJulia Lawall1-0/+1
Add missing free_domain_mem on failure path after alloc_domain. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @km exists@ local idexpression e; expression e1,e2,e3; type T,T1; identifier f; @@ * e = alloc_domain(...) ... when any when != e = e1 when != e1 = (T)e when != e1(...,(T)e,...) when != &e->f if(...) { ... when != e2(...,(T1)e,...) when != e3 = e when forall ( return <+...e...+>; | * return ...; ) } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-08-03iommu/tegra: remove invalid reference to list iterator variableJulia Lawall1-1/+1
If list_for_each_entry, etc complete a traversal of the list, the iterator variable ends up pointing to an address at an offset from the list head, and not a meaningful structure. Thus this value should not be used after the end of the iterator. Replace c->dev by dev, which is the value that c->dev has been compared to. This problem was found using Coccinelle (http://coccinelle.lip6.fr/). Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Hiroshi DOYU <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-07-24Merge tag 'iommu-updates-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds15-462/+1332
Pull IOMMU updates from Joerg Roedel: "The most important part of these updates is the IOMMU groups code enhancement written by Alex Williamson. It abstracts the problem that a given hardware IOMMU can't isolate any given device from any other device (e.g. 32 bit PCI devices can't usually be isolated). Devices that can't be isolated are grouped together. This code is required for the upcoming VFIO framework. Another IOMMU-API change written by me is the introduction of domain attributes. This makes it easier to handle GART-like IOMMUs with the IOMMU-API because now the start-address and the size of the domain address space can be queried. Besides that there are a few cleanups and fixes for the NVidia Tegra IOMMU drivers and the reworked init-code for the AMD IOMMU. The latter is from my patch-set to support interrupt remapping. The rest of this patch-set requires x86 changes which are not mergabe yet. So full support for interrupt remapping with AMD IOMMUs will come in a future merge window." * tag 'iommu-updates-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (33 commits) iommu/amd: Fix hotplug with iommu=pt iommu/amd: Add missing spin_lock initialization iommu/amd: Convert iommu initialization to state machine iommu/amd: Introduce amd_iommu_init_dma routine iommu/amd: Move unmap_flush message to amd_iommu_init_dma_ops() iommu/amd: Split enable_iommus() routine iommu/amd: Introduce early_amd_iommu_init routine iommu/amd: Move informational prinks out of iommu_enable iommu/amd: Split out PCI related parts of IOMMU initialization iommu/amd: Use acpi_get_table instead of acpi_table_parse iommu/amd: Fix sparse warnings iommu/tegra: Don't call alloc_pdir with as->lock iommu/tegra: smmu: Fix unsleepable memory allocation at alloc_pdir() iommu/tegra: smmu: Remove unnecessary sanity check at alloc_pdir() iommu/exynos: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/tegra: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/msm: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/omap: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/vt-d: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/amd: Implement DOMAIN_ATTR_GEOMETRY attribute ...
2012-07-24Merge tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-1/+1
Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug: - Add MMCONFIG support for hot-added host bridges (Jiang Liu) Device hotplug: - Move fixups from __init to __devinit (Sebastian Andrzej Siewior) - Call FINAL fixups for hot-added devices, too (Myron Stowe) - Factor out generic code for P2P bridge hot-add (Yinghai Lu) - Remove all functions in a slot, not just those with _EJx (Amos Kong) Dynamic resource management: - Track bus number allocation (struct resource tree per domain) (Yinghai Lu) - Make P2P bridge 1K I/O windows work with resource reassignment (Bjorn Helgaas, Yinghai Lu) - Disable decoding while updating 64-bit BARs (Bjorn Helgaas) Power management: - Add PCIe runtime D3cold support (Huang Ying) Virtualization: - Add VFIO infrastructure (ACS, DMA source ID quirks) (Alex Williamson) - Add quirks for devices with broken INTx masking (Jan Kiszka) Miscellaneous: - Fix some PCI Express capability version issues (Myron Stowe) - Factor out some arch code with a weak, generic, pcibios_setup() (Myron Stowe)" * tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (122 commits) PCI: hotplug: ensure a consistent return value in error case PCI: fix undefined reference to 'pci_fixup_final_inited' PCI: build resource code for M68K architecture PCI: pciehp: remove unused pciehp_get_max_lnk_width(), pciehp_get_cur_lnk_width() PCI: reorder __pci_assign_resource() (no change) PCI: fix truncation of resource size to 32 bits PCI: acpiphp: merge acpiphp_debug and debug PCI: acpiphp: remove unused res_lock sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases() PCI: call final fixups hot-added devices PCI: move final fixups from __init to __devinit x86/PCI: move final fixups from __init to __devinit MIPS/PCI: move final fixups from __init to __devinit PCI: support sizing P2P bridge I/O windows with 1K granularity PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2) PCI: disable MEM decoding while updating 64-bit MEM BARs PCI: leave MEM and IO decoding disabled during 64-bit BAR sizing, too PCI: never discard enable/suspend/resume_early/resume fixups PCI: release temporary reference in __nv_msi_ht_cap_quirk() PCI: restructure 'pci_do_fixups()' ...
2012-07-24Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds3-9/+9
Pull trivial tree from Jiri Kosina: "Trivial updates all over the place as usual." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (29 commits) Fix typo in include/linux/clk.h . pci: hotplug: Fix typo in pci iommu: Fix typo in iommu video: Fix typo in drivers/video Documentation: Add newline at end-of-file to files lacking one arm,unicore32: Remove obsolete "select MISC_DEVICES" module.c: spelling s/postition/position/g cpufreq: Fix typo in cpufreq driver trivial: typo in comment in mksysmap mach-omap2: Fix typo in debug message and comment scsi: aha152x: Fix sparse warning and make printing pointer address more portable. Change email address for Steve Glendinning Btrfs: fix typo in convert_extent_bit via: Remove bogus if check netprio_cgroup.c: fix comment typo backlight: fix memory leak on obscure error path Documentation: asus-laptop.txt references an obsolete Kconfig item Documentation: ManagementStyle: fixed typo mm/vmscan: cleanup comment error in balance_pgdat mm: cleanup on the comments of zone_reclaim_stat ...
2012-07-24iommu: Fix typo in iommuMasanari Iida3-9/+9
Correct spelling typo in debug messages and comments in drivers/iommu. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-23Merge branches 'iommu/fixes', 'x86/amd', 'groups', 'arm/tegra' and 'api/domain-attr' into nextJoerg Roedel15-462/+1332
Conflicts: drivers/iommu/iommu.c include/linux/iommu.h
2012-07-22Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds3-12/+15
Pull x86 platform changes from Ingo Molnar: "This tree mostly involves various APIC driver cleanups/robustization, and vSMP motivated platform callback improvements/cleanups" Fix up trivial conflict due to printk cleanup right next to return value change. * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits) Revert "x86/early_printk: Replace obsolete simple_strtoul() usage with kstrtoint()" x86/apic/x2apic: Use multiple cluster members for the irq destination only with the explicit affinity x86/apic/x2apic: Limit the vector reservation to the user specified mask x86/apic: Optimize cpu traversal in __assign_irq_vector() using domain membership x86/vsmp: Fix vector_allocation_domain's return value irq/apic: Use config_enabled(CONFIG_SMP) checks to clean up irq_set_affinity() for UP x86/vsmp: Fix linker error when CONFIG_PROC_FS is not set x86/apic/es7000: Make apicid of a cluster (not CPU) from a cpumask x86/apic/es7000+summit: Always make valid apicid from a cpumask x86/apic/es7000+summit: Fix compile warning in cpu_mask_to_apicid() x86/apic: Fix ugly casting and branching in cpu_mask_to_apicid_and() x86/apic: Eliminate cpu_mask_to_apicid() operation x86/x2apic/cluster: Vector_allocation_domain() should return a value x86/apic/irq_remap: Silence a bogus pr_err() x86/vsmp: Ignore IOAPIC IRQ affinity if possible x86/apic: Make cpu_mask_to_apicid() operations check cpu_online_mask x86/apic: Make cpu_mask_to_apicid() operations return error code x86/apic: Avoid useless scanning thru a cpumask in assign_irq_vector() x86/apic: Try to spread IRQ vectors to different priority levels x86/apic: Factor out default vector_allocation_domain() operation ...
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