| Message ID | 1495248054.26034.9@smtp.canonical.com |
|---|---|
| State | New |
| Headers | show |
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(-) > > >
Ok, seems to have gotten some testing on amd64 at least. Also now all upstream (as of v4.12-rc1). But again, as with the other iommu update, this should be carefully observed with any io bound testing. -Stefan
On Fri, May 19, 2017 at 09:40:54PM -0500, 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) Applied the following patches from 4.12 to artful/master-next: 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
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 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(-)