Commit Graph

15 Commits

Author SHA1 Message Date
Joerg Roedel
3a18404cd9 iommu/amd: Propagate errors from amd_iommu_init_api
This function can fail. Propagate any errors back to the
initialization state machine.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-06-11 09:42:24 +02:00
Linus Torvalds
a26be149fa IOMMU Updates for Linux v3.20
This time with:
 
 	* Generic page-table framework for ARM IOMMUs using the LPAE page-table
 	  format, ARM-SMMU and Renesas IPMMU make use of it already.
 
 	* Break out of the IO virtual address allocator from the Intel IOMMU so
 	  that it can be used by other DMA-API implementations too. The first
 	  user will be the ARM64 common DMA-API implementation for IOMMUs
 
 	* Device tree support for Renesas IPMMU
 
 	* Various fixes and cleanups all over the place
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJU3MJOAAoJECvwRC2XARrjopUP+wachFx8vb00M4hlnlwL6FCn
 DyIFkA1n4wL0muPhjcBI+LViEXrSxjr2TYoJEaBg+fiByWWQ1Hefg+KPz331Lo1D
 +uo7WiOa1AB3pfkQiUN9IN6xx+o6ivhb3UQPiL4FHjggB/qz+KVxMM9nx0j8o0fQ
 D9q6HLFiOIsFkra3xZaSuDGvYUBpcwyfn8FP1HVfvLlg1uxIGDcUJX3qU5UBpj9q
 al/lPZ4A7rp+JLApV6WyouPiyVOZKikb5x920KeRNBem7a9fNBdgf+x7QbKpNXa1
 5MaT5MarwGe8lJE4wtjOqRtsllhia+A1rg/6JbROPrlGetRFiuIh2sCKLvwOCko/
 IjBHSutpaRT1lFoAG0TAnXQlvHRG/58XxOlP3eF613X/p8/cezuUaTyTIwZam9X3
 j2GWwbUcBiHTxlu7bQDPz6a7cTf4w6wEALzYl18QrAFv+2LqlCfOo/LSlpStmjrF
 kRN8DYaohlTULvmFneSr8rfGsnp5yPgIPvdmqiSwTz/Ih7kYPgfLy6+v6IAHUqZj
 0n9oGs8eMqVvSzM2qqmyA9WGuQZRyhNjj4iDwn/he5YMw2kqxUQYGMpLnSu0Oi48
 n4PqodtVol64jKLwaHZwyU8u71iyjUC5K9TDot/I2wlSRcTELJhxGh6c1sfDLyrO
 u/htIszgKCgFvVrQoEZB
 =dwrA
 -----END PGP SIGNATURE-----

Merge tag 'iommu-updates-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:
 "This time with:

   - Generic page-table framework for ARM IOMMUs using the LPAE
     page-table format, ARM-SMMU and Renesas IPMMU make use of it
     already.

   - Break out the IO virtual address allocator from the Intel IOMMU so
     that it can be used by other DMA-API implementations too.  The
     first user will be the ARM64 common DMA-API implementation for
     IOMMUs

   - Device tree support for Renesas IPMMU

   - Various fixes and cleanups all over the place"

* tag 'iommu-updates-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (36 commits)
  iommu/amd: Convert non-returned local variable to boolean when relevant
  iommu: Update my email address
  iommu/amd: Use wait_event in put_pasid_state_wait
  iommu/amd: Fix amd_iommu_free_device()
  iommu/arm-smmu: Avoid build warning
  iommu/fsl: Various cleanups
  iommu/fsl: Use %pa to print phys_addr_t
  iommu/omap: Print phys_addr_t using %pa
  iommu: Make more drivers depend on COMPILE_TEST
  iommu/ipmmu-vmsa: Fix IOMMU lookup when multiple IOMMUs are registered
  iommu: Disable on !MMU builds
  iommu/fsl: Remove unused fsl_of_pamu_ids[]
  iommu/fsl: Fix section mismatch
  iommu/ipmmu-vmsa: Use the ARM LPAE page table allocator
  iommu: Fix trace_map() to report original iova and original size
  iommu/arm-smmu: add support for iova_to_phys through ATS1PR
  iopoll: Introduce memory-mapped IO polling macros
  iommu/arm-smmu: don't touch the secure STLBIALL register
  iommu/arm-smmu: make use of generic LPAE allocator
  iommu: io-pgtable-arm: add non-secure quirk
  ...
2015-02-12 09:16:56 -08:00
Joerg Roedel
63ce3ae889 iommu: Update my email address
The AMD address is dead for a long time already, replace it
with a working one.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-02-04 16:14:34 +01:00
Jiang Liu
c392f56c94 iommu/irq_remapping: Kill function irq_remapping_supported() and related code
Simplify irq_remapping code by killing irq_remapping_supported() and
related interfaces.

Joerg posted a similar patch at https://lkml.org/lkml/2014/12/15/490,
so assume an signed-off from Joerg.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Joerg Roedel <joro@8bytes.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Rientjes <rientjes@google.com>
Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Oren Twaig <oren@scalemp.com>
Link: http://lkml.kernel.org/r/1420615903-28253-14-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-01-15 11:24:23 +01:00
Steven L Kinney
30861ddc9c perf/x86/amd: Add IOMMU Performance Counter resource management
Add functionality to check the availability of the AMD IOMMU Performance
Counters and export this functionality to other core drivers, such as in this
case, a perf AMD IOMMU PMU.  This feature is not bound to any specific AMD
family/model other than the presence of the IOMMU with P-C enabled.

The AMD IOMMU P-C support static counting only at this time.

Signed-off-by: Steven Kinney <steven.kinney@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1370466709-3212-2-git-send-email-suravee.suthikulpanit@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-19 13:04:52 +02:00
Joerg Roedel
6b474b8224 iommu/amd: Add initialization routines for AMD interrupt remapping
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>
2012-09-28 17:43:52 +02:00
Joerg Roedel
f3572db823 iommu/amd: Add function to get IOMMUv2 domain for pdev
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 <joerg.roedel@amd.com>
2011-12-12 15:19:05 +01:00
Joerg Roedel
c99afa25b6 iommu/amd: Implement function to send PPR completions
To send completions for PPR requests this patch adds a
function which can be used by the IOMMUv2 driver.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-12 15:19:05 +01:00
Joerg Roedel
b16137b11b iommu/amd: Implement functions to manage GCR3 table
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 <joerg.roedel@amd.com>
2011-12-12 15:19:04 +01:00
Joerg Roedel
22e266c79b iommu/amd: Implement IOMMUv2 TLB flushing routines
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 <joerg.roedel@amd.com>
2011-12-12 15:19:03 +01:00
Joerg Roedel
52815b7568 iommu/amd: Add support for IOMMUv2 domain mode
This patch adds support for protection domains that
implement two-level paging for devices.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-12 15:18:57 +01:00
Joerg Roedel
132bd68f18 iommu/amd: Add amd_iommu_domain_direct_map function
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 <joerg.roedel@amd.com>
2011-12-12 14:55:13 +01:00
Joerg Roedel
72e1dcc419 iommu/amd: Implement notifier for PPR faults
Add a notifer at which a module can attach to get informed
about incoming PPR faults.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-12 14:55:04 +01:00
Joerg Roedel
400a28a05f iommu/amd: Add iommuv2 flag to struct amd_iommu
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 <joerg.roedel@amd.com>
2011-12-12 14:54:52 +01:00
Joerg Roedel
403f81d8ee iommu/amd: Move missing parts to drivers/iommu
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 <joerg.roedel@amd.com>
2011-06-21 10:49:31 +02:00