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[Resend,pull,request,SRU,Zesty] Support SMMU passthrough using the default domain

Message ID 1496238530.28436.3@smtp.canonical.com
State New
Headers show

Pull-request

git+ssh://git.launchpad.net/~centriq-team/+git/linux-sru lp1688158

Message

Manoj Iyer May 31, 2017, 1:48 p.m. UTC
Stefan,

I have tested the patch series on Power8, Intel, along with ARM and 
updated the bug with the test information, and the git repo I sent the 
pull request from. A kernel with the patches is available in PPA 
https://launchpad.net/~centriq-team/+archive/ubuntu/sru/

Could you please review and consider for SRU?

The following changes since commit 
6e2b676684d740b6c781cf631453127f3f4d7631:

  UBUNTU: Ubuntu-4.10.0-21.23 (2017-04-28 12:46:22 +0200)

are available in the git repository at:

  git+ssh://git.launchpad.net/~centriq-team/+git/linux-sru lp1688158

for you to fetch changes up to f45d8d99d2a3c36cce6a1a64d4c36bc37088fe32:

  iommu/vt-d: Fix crash on boot when DMAR is disabled (2017-05-30 
14:50:40 -0500)

----------------------------------------------------------------
Andy Shevchenko (1):
      iommu/vt-d: Fix crash on boot when DMAR is disabled

Joerg Roedel (7):
      iommu: Rename iommu_get_instance()
      iommu: Rename struct iommu_device
      iommu: Introduce new 'struct iommu_device'
      iommu: Add sysfs bindings for struct iommu_device
      iommu: Make iommu_device_link/unlink take a struct iommu_device
      iommu: Add iommu_device_set_fwnode() interface
      iommu/arm-smmu: Make use of the iommu_register interface

Will Deacon (6):
      iommu/arm-smmu: Restrict domain attributes to UNMANAGED domains
      iommu/arm-smmu: Install bypass S2CRs for IOMMU_DOMAIN_IDENTITY 
domains
      iommu/arm-smmu-v3: Make arm_smmu_install_ste_for_dev return void
      iommu/arm-smmu-v3: Install bypass STEs for IOMMU_DOMAIN_IDENTITY 
domains
      iommu: Allow default domain type to be set on the kernel command 
line
      arm64: dma-mapping: Only swizzle DMA ops for IOMMU_DOMAIN_DMA

 Documentation/admin-guide/kernel-parameters.txt |  6 ++
 arch/arm64/mm/dma-mapping.c                     | 17 +++--
 drivers/acpi/arm64/iort.c                       |  2 +-
 drivers/iommu/amd_iommu.c                       | 18 +++--
 drivers/iommu/amd_iommu_init.c                  |  9 ++-
 drivers/iommu/amd_iommu_types.h                 |  4 +-
 drivers/iommu/arm-smmu-v3.c                     | 98 
+++++++++++++++++--------
 drivers/iommu/arm-smmu.c                        | 56 +++++++++++++-
 drivers/iommu/dmar.c                            | 22 ++++--
 drivers/iommu/intel-iommu.c                     | 21 +++---
 drivers/iommu/iommu-sysfs.c                     | 61 +++++++--------
 drivers/iommu/iommu.c                           | 61 ++++++++++++---
 include/linux/intel-iommu.h                     |  3 +-
 include/linux/iommu.h                           | 78 
++++++++++++++++----
 include/linux/of_iommu.h                        |  2 +-
 15 files changed, 329 insertions(+), 129 deletions(-)


Thanks
Manoj Iyer

On Tue, May 23, 2017 at 4:00 AM, Stefan Bader 
<stefan.bader@canonical.com> wrote:
> On 20.05.2017 04:40, Manoj Iyer wrote:
>>  Paolo found build issues with the patch series I had sent earlier 
>> and nak'ed it
>>  because of build failure. Rather than sending large number of 
>> patches with git
>>  send-email I am resending these as a pull-request (I should have 
>> done this
>>  initially).
>> 
>>  I am resending the patch series to add  support for SMMU 
>> passthrough using the
>>  default domain, the patch series implements a kernel command-line 
>> option
>>  iommu.passthrough=0/1 1 - Bypass the IOMMU for DMA, 0 - Use IOMMU 
>> translation
>>  for DMA. This feature  is desired on both Qualcomm Centriq 2400 and 
>> Thunder-X
>>  platforms.
>> 
>>  The bug report http://bugs.launchpad.net/bugs/1688158 has detailed 
>> test
>>  results from Qualcomm demonstrating performance improvements using 
>> passthrough.
>>  I  have  also tested the kernel on Thundex-X for any regressions, 
>> for both boot
>>  test and  pci passthrough.
>> 
>>  I builtsuccessfully the kernel in the centriq ppa with patches 
>> applied to zesty
>>  master for ARM64, AMD64 and i386.
>>  https://launchpad.net/~centriq-team/+archive/ubuntu/sru/+packages
>> 
>>  Please consider this patch series for review and SRU to zesty.
>> 
>>  The following changes since commit 
>> 6e2b676684d740b6c781cf631453127f3f4d7631:
>> 
>>    UBUNTU: Ubuntu-4.10.0-21.23 (2017-04-28 12:46:22 +0200)
>> 
>>  are available in the git repository at:
>> 
>>    git+ssh://git.launchpad.net/~centriq-team/+git/linux-sru lp1688158
>> 
>>  for you to fetch changes up to 
>> ac9d3fd2c6f4a7d7bd0d3329ac073eca1961f8e5:
>> 
>>    arm64: dma-mapping: Only swizzle DMA ops for IOMMU_DOMAIN_DMA 
>> (2017-05-19
>>  14:40:57 -0500)
>> 
>>  ----------------------------------------------------------------
>>  Joerg Roedel (7):
>>        iommu: Rename iommu_get_instance()
>>        iommu: Rename struct iommu_device
>>        iommu: Introduce new 'struct iommu_device'
>>        iommu: Add sysfs bindings for struct iommu_device
>>        iommu: Make iommu_device_link/unlink take a struct 
>> iommu_device
>>        iommu: Add iommu_device_set_fwnode() interface
> 
> This, again, contains changes in the area of IOMMU that are not 
> isolated to
> arm64 systems (specifically iommu_amd and iommu_intel) while 
> regression testing
> I can see only was done for arm64.
> 
> I cannot ACK this under this conditions.
> 
> -Stefan
> 
>>        iommu/arm-smmu: Make use of the iommu_register interface
>> 
>>  Will Deacon (6):
>>        iommu/arm-smmu: Restrict domain attributes to UNMANAGED 
>> domains
>>        iommu/arm-smmu: Install bypass S2CRs for 
>> IOMMU_DOMAIN_IDENTITY domains
>>        iommu/arm-smmu-v3: Make arm_smmu_install_ste_for_dev return 
>> void
>>        iommu/arm-smmu-v3: Install bypass STEs for 
>> IOMMU_DOMAIN_IDENTITY domains
>>        iommu: Allow default domain type to be set on the kernel 
>> command line
>>        arm64: dma-mapping: Only swizzle DMA ops for IOMMU_DOMAIN_DMA
>> 
>>   Documentation/admin-guide/kernel-parameters.txt |  6 ++
>>   arch/arm64/mm/dma-mapping.c                     | 17 +++--
>>   drivers/acpi/arm64/iort.c                       |  2 +-
>>   drivers/iommu/amd_iommu.c                       | 18 +++--
>>   drivers/iommu/amd_iommu_init.c                  |  9 ++-
>>   drivers/iommu/amd_iommu_types.h                 |  4 +-
>>   drivers/iommu/arm-smmu-v3.c                     | 98 
>> +++++++++++++++++--------
>>   drivers/iommu/arm-smmu.c                        | 56 +++++++++++++-
>>   drivers/iommu/dmar.c                            | 20 +++--
>>   drivers/iommu/intel-iommu.c                     | 21 +++---
>>   drivers/iommu/iommu-sysfs.c                     | 61 
>> +++++++--------
>>   drivers/iommu/iommu.c                           | 61 
>> ++++++++++++---
>>   include/linux/intel-iommu.h                     |  3 +-
>>   include/linux/iommu.h                           | 78 
>> ++++++++++++++++----
>>   include/linux/of_iommu.h                        |  2 +-
>>   15 files changed, 327 insertions(+), 129 deletions(-)
>> 
>> 
>> 
> 
> 
> --
> kernel-team mailing list
> kernel-team@lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Comments

Thadeu Lima de Souza Cascardo June 6, 2017, 4:03 p.m. UTC | #1
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Kleber Sacilotto de Souza June 8, 2017, 11:09 a.m. UTC | #2
Applied to zesty/master-next branch. Thank you.