lwn.git/arch/x86/kernel/amd_iommu_init.c, branch doc/4.4

iommu/amd: Move missing parts to drivers/iommu

2011-06-21T08:49:31+00:00

A few parts of the driver were missing in drivers/iommu. Move them there to have the complete driver in that directory. Signed-off-by: Joerg Roedel

x86/amd-iommu: Fix 3 possible endless loops

2011-06-06T14:10:15+00:00

The driver contains several loops counting on an u16 value where the exit-condition is checked against variables that can have values up to 0xffff. In this case the loops will never exit. This patch fixed 3 such loops. Cc: stable@kernel.org Signed-off-by: Joerg Roedel

x86/amd-iommu: Use threaded interupt handler

2011-05-10T09:07:58+00:00

Move the interupt handling for the iommu into the interupt thread to reduce latencies and prepare interupt handling for pri handling. Signed-off-by: Joerg Roedel

Merge branches 'dma-debug/next', 'amd-iommu/command-cleanups', 'amd-iommu/ats' and 'amd-iommu/extended-features' into iommu/2.6.40

2011-05-10T08:25:23+00:00

Conflicts: arch/x86/include/asm/amd_iommu_types.h arch/x86/kernel/amd_iommu.c arch/x86/kernel/amd_iommu_init.c

x86/amd-iommu: Add extended feature detection

2011-04-12T07:21:51+00:00

This patch adds detection of the extended features of an AMD IOMMU. The available features are printed to dmesg on boot. Signed-off-by: Joerg Roedel

x86/amd-iommu: Add flag to indicate IOTLB support

2011-04-11T07:04:03+00:00

This patch adds a flag to the AMD IOMMU driver to indicate that all IOMMUs present in the system support device IOTLBs. Signed-off-by: Joerg Roedel

x86/amd-iommu: Flush all internal TLBs when IOMMUs are enabled

2011-04-07T09:04:32+00:00

The old code only flushed a DTE or a domain TLB before it is actually used by the IOMMU driver. While this is efficient and works when done right it is more likely to introduce new bugs when changing code (which happened in the past). This patch adds code to flush all DTEs and all domain TLBs in each IOMMU right after it is enabled (at boot and after resume). This reduces the complexity of the driver and makes it less likely to introduce stale-TLB bugs in the future. Signed-off-by: Joerg Roedel

x86: Use syscore_ops instead of sysdev classes and sysdevs

2011-03-23T21:15:54+00:00

Some subsystems in the x86 tree need to carry out suspend/resume and shutdown operations with one CPU on-line and interrupts disabled and they define sysdev classes and sysdevs or sysdev drivers for this purpose. This leads to unnecessarily complicated code and excessive memory usage, so switch them to using struct syscore_ops objects for this purpose instead. Generally, there are three categories of subsystems that use sysdevs for implementing PM operations: (1) subsystems whose suspend/resume callbacks ignore their arguments entirely (the majority), (2) subsystems whose suspend/resume callbacks use their struct sys_device argument, but don't really need to do that, because they can be implemented differently in an arguably simpler way (io_apic.c), and (3) subsystems whose suspend/resume callbacks use their struct sys_device argument, but the value of that argument is always the same and could be ignored (microcode_core.c). In all of these cases the subsystems in question may be readily converted to using struct syscore_ops objects for power management and shutdown. Signed-off-by: Rafael J. Wysocki Reviewed-by: Thomas Gleixner Acked-by: Ingo Molnar

Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-21T21:23:48+00:00

* 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, iommu: Update header comments with appropriate naming ia64, iommu: Add a dummy iommu_table.h file in IA64. x86, iommu: Fix IOMMU_INIT alignment rules x86, doc: Adding comments about .iommu_table and its neighbors. x86, iommu: Utilize the IOMMU_INIT macros functionality. x86, VT-d: Make Intel VT-d IOMMU use IOMMU_INIT_* macros. x86, GART/AMD-VI: Make AMD GART and IOMMU use IOMMU_INIT_* macros. x86, calgary: Make Calgary IOMMU use IOMMU_INIT_* macros. x86, xen-swiotlb: Make Xen-SWIOTLB use IOMMU_INIT_* macros. x86, swiotlb: Make SWIOTLB use IOMMU_INIT_* macros. x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine. x86, iommu: Add proper dependency sort routine (and sanity check). x86, iommu: Make all IOMMU's detection routines return a value. x86, iommu: Add IOMMU_INIT macros, .iommu_table section, and iommu_table_entry structure

x86/amd-iommu: Update copyright headers

2010-10-13T09:13:21+00:00

This patch updates the copyright headers in all source files of the AMD IOMMU driver. Signed-off-by: Joerg Roedel