11 Jan, 2012
1 commit
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* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (53 commits)
iommu/amd: Set IOTLB invalidation timeout
iommu/amd: Init stats for iommu=pt
iommu/amd: Remove unnecessary cache flushes in amd_iommu_resume
iommu/amd: Add invalidate-context call-back
iommu/amd: Add amd_iommu_device_info() function
iommu/amd: Adapt IOMMU driver to PCI register name changes
iommu/amd: Add invalid_ppr callback
iommu/amd: Implement notifiers for IOMMUv2
iommu/amd: Implement IO page-fault handler
iommu/amd: Add routines to bind/unbind a pasid
iommu/amd: Implement device aquisition code for IOMMUv2
iommu/amd: Add driver stub for AMD IOMMUv2 support
iommu/amd: Add stat counter for IOMMUv2 events
iommu/amd: Add device errata handling
iommu/amd: Add function to get IOMMUv2 domain for pdev
iommu/amd: Implement function to send PPR completions
iommu/amd: Implement functions to manage GCR3 table
iommu/amd: Implement IOMMUv2 TLB flushing routines
iommu/amd: Add support for IOMMUv2 domain mode
iommu/amd: Add amd_iommu_domain_direct_map function
...
09 Jan, 2012
2 commits
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Conflicts:
drivers/iommu/amd_iommu.c
drivers/iommu/intel-iommu.c
include/linux/iommu.h -
Conflicts:
drivers/pci/hotplug/acpiphp_glue.c
06 Jan, 2012
1 commit
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* 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
memblock: Reimplement memblock allocation using reverse free area iterator
memblock: Kill early_node_map[]
score: Use HAVE_MEMBLOCK_NODE_MAP
s390: Use HAVE_MEMBLOCK_NODE_MAP
mips: Use HAVE_MEMBLOCK_NODE_MAP
ia64: Use HAVE_MEMBLOCK_NODE_MAP
SuperH: Use HAVE_MEMBLOCK_NODE_MAP
sparc: Use HAVE_MEMBLOCK_NODE_MAP
powerpc: Use HAVE_MEMBLOCK_NODE_MAP
memblock: Implement memblock_add_node()
memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users
memblock: Track total size of regions automatically
powerpc: Cleanup memblock usage
memblock: Reimplement memblock_enforce_memory_limit() using __memblock_remove()
memblock: Make memblock functions handle overflowing range @size
memblock: Reimplement __memblock_remove() using memblock_isolate_range()
memblock: Separate out memblock_isolate_range() from memblock_set_node()
memblock: Kill memblock_init()
memblock: Kill sentinel entries at the end of static region arrays
memblock: Add __memblock_dump_all()
...
30 Dec, 2011
1 commit
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* 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu: Initialize domain->handler in iommu_domain_alloc()
22 Dec, 2011
3 commits
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To protect the command buffer from hanging when a device
does not respond to an IOTLB invalidation, set a timeout of
1s for outstanding IOTLB invalidations.Signed-off-by: Joerg Roedel
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The IOMMUv2 driver added a few statistic counter which are
interesting in the iommu=pt mode too. So initialize the
statistic counter for that mode too.Signed-off-by: Joerg Roedel
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The caches are already flushed in enable_iommus(), so this
flush is not necessary.Signed-off-by: Joerg Roedel
20 Dec, 2011
1 commit
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…x/kernel/git/tj/misc into core/memblock
17 Dec, 2011
2 commits
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* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux:
drm/i915/dp: Dither down to 6bpc if it makes the mode fit
drm/i915: enable semaphores on per-device defaults
drm/i915: don't set unpin_work if vblank_get fails
drm/i915: By default, enable RC6 on IVB and SNB when reasonable
iommu: Export intel_iommu_enabled to signal when iommu is in use
drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check
drm/i915: prevent division by zero when asking for chipset power
drm/i915: add PCH info to i915_capabilities
drm/i915: set the right SDVO transcoder for CPT
drm/i915: no-lvds quirk for ASUS AT5NM10T-I
drm/i915: Treat pre-gen4 backlight duty cycle value consistently
drm/i915: Hook up Ivybridge eDP
drm/i915: add multi-threaded forcewake support -
In i915 driver, we do not enable either rc6 or semaphores on SNB when dmar
is enabled. The new 'intel_iommu_enabled' variable signals when the
iommu code is in operation.Cc: Ted Phelps
Cc: Peter
Cc: Lukas Hejtmanek
Cc: Andrew Lutomirski
CC: Daniel Vetter
Cc: Eugeni Dodonov
Signed-off-by: Keith Packard
16 Dec, 2011
1 commit
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Since it is not guaranteed that an iommu driver initializes in its
domain_init() function, it must be initialized with NULL to prevent
calling a function in an arbitrary location when iommu fault occurred.Signed-off-by: KyongHo Cho
Signed-off-by: Joerg Roedel
15 Dec, 2011
3 commits
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This call-back is invoked when the task that is bound to a
pasid is about to exit. The driver can use it to shutdown
all context related to that context in a safe way.Signed-off-by: Joerg Roedel
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This function can be used to find out which features
necessary for IOMMUv2 usage are available on a given device.Signed-off-by: Joerg Roedel
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The symbolic register names for PCI and PASID changed in
PCI code. This patch adapts the AMD IOMMU driver to these
changes.Signed-off-by: Joerg Roedel
14 Dec, 2011
3 commits
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Conflicts:
drivers/iommu/amd_iommu.c -
This callback can be used to change the PRI response code
sent to a device when a PPR fault fails.Signed-off-by: Joerg Roedel
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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
12 Dec, 2011
19 commits
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Register the notifier for PPR faults and handle them as
necessary.Signed-off-by: Joerg Roedel
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This patch adds routines to bind a specific process
address-space to a given PASID.Signed-off-by: Joerg Roedel
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This patch adds the amd_iommu_init_device() and
amd_iommu_free_device() functions which make a device and
the IOMMU ready for IOMMUv2 usage.Signed-off-by: Joerg Roedel
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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
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Add some interesting statistic counters for events when
IOMMUv2 is active.Signed-off-by: Joerg Roedel
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Add infrastructure for errata-handling and handle two known
erratas in the IOMMUv2 code.Signed-off-by: Joerg Roedel
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The AMD IOMMUv2 driver needs to get the IOMMUv2 domain
associated with a particular device. This patch adds a
function to get this information.Signed-off-by: Joerg Roedel
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To send completions for PPR requests this patch adds a
function which can be used by the IOMMUv2 driver.Signed-off-by: Joerg Roedel
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This patch adds functions necessary to set and clear the
GCR3 values associated with a particular PASID in an IOMMUv2
domain.Signed-off-by: Joerg Roedel
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The functions added with this patch allow to manage the
IOMMU and the device TLBs for all devices in an IOMMUv2
domain.Signed-off-by: Joerg Roedel
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This patch adds support for protection domains that
implement two-level paging for devices.Signed-off-by: Joerg Roedel
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This function can be used to switch a domain into
paging-mode 0. In this mode all devices can access physical
system memory directly without any remapping.Signed-off-by: Joerg Roedel
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Add a notifer at which a module can attach to get informed
about incoming PPR faults.Signed-off-by: Joerg Roedel
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If the device starts to use IOMMUv2 features the dma handles
need to stay valid. The only sane way to do this is to use a
identity mapping for the device and not translate it by the
iommu. This is implemented with this patch. Since this lifts
the device-isolation there is also a new kernel parameter
which allows to disable that feature.Signed-off-by: Joerg Roedel
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In mixed IOMMU setups this flag inidicates whether an IOMMU
supports the v2 features or not. This patch also adds a
global flag together with a function to query that flag from
other code. The flag shows if at least one IOMMUv2 is in the
system.Signed-off-by: Joerg Roedel
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This feature needs to be enabled before IOMMUv2 DTEs can be
set up.Signed-off-by: Joerg Roedel
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Allocate and enable a log buffer for peripheral page faults
when the IOMMU supports this feature.Signed-off-by: Joerg Roedel
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Read the number of PASIDs supported by each IOMMU in the
system and take the smallest number as the maximum value
supported by the IOMMU driver.Signed-off-by: Joerg Roedel
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Convert the contents of 'struct dev_table_entry' to u64 to
allow updating the DTE wit 64bit writes as required by the
spec.Signed-off-by: Joerg Roedel
09 Dec, 2011
1 commit
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Now all ARCH_POPULATES_NODE_MAP archs select HAVE_MEBLOCK_NODE_MAP -
there's no user of early_node_map[] left. Kill early_node_map[] and
replace ARCH_POPULATES_NODE_MAP with HAVE_MEMBLOCK_NODE_MAP. Also,
relocate for_each_mem_pfn_range() and helper from mm.h to memblock.h
as page_alloc.c would no longer host an alternative implementation.This change is ultimately one to one mapping and shouldn't cause any
observable difference; however, after the recent changes, there are
some functions which now would fit memblock.c better than page_alloc.c
and dependency on HAVE_MEMBLOCK_NODE_MAP instead of HAVE_MEMBLOCK
doesn't make much sense on some of them. Further cleanups for
functions inside HAVE_MEMBLOCK_NODE_MAP in mm.h would be nice.-v2: Fix compile bug introduced by mis-spelling
CONFIG_HAVE_MEMBLOCK_NODE_MAP to CONFIG_MEMBLOCK_HAVE_NODE_MAP in
mmzone.h. Reported by Stephen Rothwell.Signed-off-by: Tejun Heo
Cc: Stephen Rothwell
Cc: Benjamin Herrenschmidt
Cc: Yinghai Lu
Cc: Tony Luck
Cc: Ralf Baechle
Cc: Martin Schwidefsky
Cc: Chen Liqin
Cc: Paul Mundt
Cc: "David S. Miller"
Cc: "H. Peter Anvin"
06 Dec, 2011
2 commits
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An omap_iommu_iova_to_phys failure usually means that iova wasn't mapped.
When that happens, it's helpful to know the value of iova, so add it
to the error message.Signed-off-by: Ohad Ben-Cohen
Signed-off-by: Joerg Roedel -
Fix:
Section mismatch in reference from the function
ir_dev_scope_init() to the function
.init.text:dmar_dev_scope_init() The function
ir_dev_scope_init() references the function __init dmar_dev_scope_init().Signed-off-by: Sergey Senozhatsky
Cc: Suresh Siddha
Cc: Youquan Song
Cc: Ohad Ben-Cohen
Link: http://lkml.kernel.org/r/20111026161507.GB10103@swordfish
Signed-off-by: Ingo Molnar
