* [GIT PULL] IOMMU updates for 5.11
@ 2020-12-14 23:45 Will Deacon
2020-12-16 18:53 ` Will Deacon
2020-12-16 22:04 ` pr-tracker-bot
0 siblings, 2 replies; 6+ messages in thread
From: Will Deacon @ 2020-12-14 23:45 UTC (permalink / raw)
To: torvalds
Cc: iommu, linux-kernel, Joerg Roedel, Alex Williamson, Robin Murphy,
Lu Baolu, kernel-team
Hi Linus,
Please pull these IOMMU updates for 5.11: there's a good mixture of
improvements to the core code and driver changes across the board.
Summary in the tag and merge commits.
One thing worth pointing out is that this includes a quirk to work
around behaviour in the i915 driver (see 65f746e8285f ("iommu: Add quirk
for Intel graphic devices in map_sg")), which otherwise interacts badly
with the conversion of the intel IOMMU driver over to the DMA-IOMMU APU
but has being fixed properly in the DRM tree. We'll revert the quirk
later this cycle once we've confirmed that things don't fall apart
without it.
Cheers,
Will
--->8
The following changes since commit 4165bf015ba9454f45beaad621d16c516d5c5afe:
iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs (2020-12-07 11:00:24 +0000)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/iommu-updates-v5.11
for you to fetch changes up to 5ae9a046a452d60b6a6c076f6df7e3f8e34f918f:
iommu/amd: Add sanity check for interrupt remapping table length macros (2020-12-11 12:47:22 +0000)
----------------------------------------------------------------
IOMMU updates for 5.11
- IOVA allocation optimisations and removal of unused code
- Introduction of DOMAIN_ATTR_IO_PGTABLE_CFG for parameterising the
page-table of an IOMMU domain
- Support for changing the default domain type in sysfs
- Optimisation to the way in which identity-mapped regions are created
- Driver updates:
* Arm SMMU updates, including continued work on Shared Virtual Memory
* Tegra SMMU updates, including support for PCI devices
* Intel VT-D updates, including conversion to the IOMMU-DMA API
- Cleanup, kerneldoc and minor refactoring
----------------------------------------------------------------
Bjorn Andersson (3):
iommu/arm-smmu: Allow implementation specific write_s2cr
iommu/arm-smmu-qcom: Read back stream mappings
iommu/arm-smmu-qcom: Implement S2CR quirk
Chen Jun (1):
iommu: Modify the description of iommu_sva_unbind_device
Christoph Hellwig (1):
dma-iommu: remove __iommu_dma_mmap
Christophe JAILLET (1):
iommu/vt-d: Avoid GFP_ATOMIC where it is not needed
Cong Wang (1):
iommu: avoid taking iova_rbtree_lock twice
Jean-Philippe Brucker (4):
iommu/ioasid: Add ioasid references
iommu/sva: Add PASID helpers
iommu/arm-smmu-v3: Implement iommu_sva_bind/unbind()
iommu/arm-smmu-v3: Hook up ATC invalidation to mm ops
John Garry (3):
iommu: Delete split_and_remove_iova()
iommu: Stop exporting alloc_iova_mem()
iommu: Stop exporting free_iova_mem()
Jordan Crouse (2):
iommu/arm-smmu-qcom: Add implementation for the adreno GPU SMMU
dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU
Kaixu Xia (1):
iommu/arm-smmu-v3: Assign boolean values to a bool variable
Keqian Zhu (1):
iommu: Defer the early return in arm_(v7s/lpae)_map
Kunkun Jiang (1):
iommu/io-pgtable-arm: Remove unused 'level' parameter from iopte_type() macro
Lu Baolu (6):
iommu: Add quirk for Intel graphic devices in map_sg
iommu/vt-d: Update domain geometry in iommu_ops.at(de)tach_dev
iommu/vt-d: Cleanup after converting to dma-iommu ops
iommu: Move def_domain type check for untrusted device into core
iommu: Fix htmldocs warnings in sysfs-kernel-iommu_groups
iommu/vt-d: Remove set but not used variable
Lukas Bulwahn (1):
iommu/vt-d: include conditionally on CONFIG_INTEL_IOMMU_SVM
Nicolin Chen (5):
iommu/tegra-smmu: Unwrap tegra_smmu_group_get
iommu/tegra-smmu: Expand mutex protection range
iommu/tegra-smmu: Use fwspec in tegra_smmu_(de)attach_dev
iommu/tegra-smmu: Rework tegra_smmu_probe_device()
iommu/tegra-smmu: Add PCI support
Rob Clark (1):
iommu/arm-smmu: Add a way for implementations to influence SCTLR
Robin Murphy (2):
iommu/arm-smmu: Use new devm_krealloc()
iommu/io-pgtable: Remove tlb_flush_leaf
Sai Prakash Ranjan (4):
iommu/arm-smmu: Add support for pagetable config domain attribute
iommu/arm-smmu: Move non-strict mode to use io_pgtable_domain_attr
iommu: arm-smmu-impl: Use table to list QCOM implementations
iommu: arm-smmu-impl: Add a space before open parenthesis
Sai Praneeth Prakhya (3):
iommu: Add support to change default domain of an iommu group
iommu: Take lock before reading iommu group default domain type
iommu: Document usage of "/sys/kernel/iommu_groups/<grp_id>/type" file
Suravee Suthikulpanit (1):
iommu/amd: Add sanity check for interrupt remapping table length macros
Tom Murphy (4):
iommu: Handle freelists when using deferred flushing in iommu drivers
iommu: Add iommu_dma_free_cpu_cached_iovas()
iommu: Allow the dma-iommu api to use bounce buffers
iommu/vt-d: Convert intel iommu driver to the iommu ops
Vijayanand Jitta (2):
iommu/iova: Retry from last rb tree node if iova search fails
iommu/iova: Free global iova rcache on iova alloc failure
Will Deacon (10):
Merge branch 'stable/for-linus-5.10-rc2' of git://git.kernel.org/.../konrad/swiotlb into for-next/iommu/vt-d
Merge branch 'for-next/iommu/io-pgtable-domain-attr' into for-next/iommu/arm-smmu
Merge branch 'for-next/iommu/arm-smmu' into for-next/iommu/core
Merge branch 'for-next/iommu/default-domains' into for-next/iommu/core
Merge branch 'for-next/iommu/iova' into for-next/iommu/core
Merge branch 'for-next/iommu/misc' into for-next/iommu/core
Merge branch 'for-next/iommu/svm' into for-next/iommu/core
Merge branch 'for-next/iommu/tegra-smmu' into for-next/iommu/core
Merge branch 'for-next/iommu/vt-d' into for-next/iommu/core
Merge branch 'for-next/iommu/fixes' into for-next/iommu/core
Yang Yingliang (1):
iommu: return error code when it can't get group
Yong Wu (1):
iommu: Improve the performance for direct_mapping
.../ABI/testing/sysfs-kernel-iommu_groups | 30 +
Documentation/admin-guide/kernel-parameters.txt | 5 -
.../devicetree/bindings/iommu/arm,smmu.yaml | 9 +-
drivers/gpu/drm/msm/msm_iommu.c | 1 -
drivers/gpu/drm/panfrost/panfrost_mmu.c | 7 -
drivers/iommu/Kconfig | 7 +
drivers/iommu/Makefile | 1 +
drivers/iommu/amd/amd_iommu_types.h | 19 +-
drivers/iommu/amd/init.c | 6 +-
drivers/iommu/amd/iommu.c | 2 +-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 244 +++++-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 59 +-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 30 +
drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 13 +-
drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c | 17 +-
drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 270 +++++-
drivers/iommu/arm/arm-smmu/arm-smmu.c | 76 +-
drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 +-
drivers/iommu/arm/arm-smmu/qcom_iommu.c | 8 -
drivers/iommu/dma-iommu.c | 244 +++++-
drivers/iommu/intel/Kconfig | 1 +
drivers/iommu/intel/iommu.c | 919 +++------------------
drivers/iommu/intel/svm.c | 6 +-
drivers/iommu/io-pgtable-arm-v7s.c | 11 +-
drivers/iommu/io-pgtable-arm.c | 29 +-
drivers/iommu/ioasid.c | 38 +-
drivers/iommu/iommu-sva-lib.c | 86 ++
drivers/iommu/iommu-sva-lib.h | 15 +
drivers/iommu/iommu.c | 276 ++++++-
drivers/iommu/iova.c | 100 ++-
drivers/iommu/ipmmu-vmsa.c | 1 -
drivers/iommu/msm_iommu.c | 7 -
drivers/iommu/mtk_iommu.c | 1 -
drivers/iommu/tegra-smmu.c | 240 ++----
drivers/xen/swiotlb-xen.c | 3 +-
include/linux/dma-iommu.h | 8 +
include/linux/io-pgtable.h | 19 +-
include/linux/ioasid.h | 10 +-
include/linux/iommu.h | 2 +
include/linux/iova.h | 21 -
include/linux/swiotlb.h | 10 +-
kernel/dma/swiotlb.c | 22 +-
42 files changed, 1613 insertions(+), 1265 deletions(-)
create mode 100644 drivers/iommu/iommu-sva-lib.c
create mode 100644 drivers/iommu/iommu-sva-lib.h
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [GIT PULL] IOMMU updates for 5.11
2020-12-14 23:45 [GIT PULL] IOMMU updates for 5.11 Will Deacon
@ 2020-12-16 18:53 ` Will Deacon
2020-12-16 22:02 ` Linus Torvalds
2020-12-16 22:04 ` pr-tracker-bot
1 sibling, 1 reply; 6+ messages in thread
From: Will Deacon @ 2020-12-16 18:53 UTC (permalink / raw)
To: torvalds
Cc: iommu, linux-kernel, Joerg Roedel, Alex Williamson, Robin Murphy,
Lu Baolu, kernel-team
Hi again, Linus,
On Mon, Dec 14, 2020 at 11:45:18PM +0000, Will Deacon wrote:
> Hi Linus,
>
> Please pull these IOMMU updates for 5.11: there's a good mixture of
> improvements to the core code and driver changes across the board.
> Summary in the tag and merge commits.
>
> One thing worth pointing out is that this includes a quirk to work
> around behaviour in the i915 driver (see 65f746e8285f ("iommu: Add quirk
> for Intel graphic devices in map_sg")), which otherwise interacts badly
> with the conversion of the intel IOMMU driver over to the DMA-IOMMU APU
> but has being fixed properly in the DRM tree. We'll revert the quirk
> later this cycle once we've confirmed that things don't fall apart
> without it.
I'm hoping to wind down a bit next week (ho ho ho), so I just wanted to
check whether this had got caught in your spam filters, whether you wanted
me to change something or whether you're just snowed under in pull requests.
Cheers,
Will
> --->8
>
> The following changes since commit 4165bf015ba9454f45beaad621d16c516d5c5afe:
>
> iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs (2020-12-07 11:00:24 +0000)
>
> are available in the Git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/iommu-updates-v5.11
>
> for you to fetch changes up to 5ae9a046a452d60b6a6c076f6df7e3f8e34f918f:
>
> iommu/amd: Add sanity check for interrupt remapping table length macros (2020-12-11 12:47:22 +0000)
>
> ----------------------------------------------------------------
> IOMMU updates for 5.11
>
> - IOVA allocation optimisations and removal of unused code
>
> - Introduction of DOMAIN_ATTR_IO_PGTABLE_CFG for parameterising the
> page-table of an IOMMU domain
>
> - Support for changing the default domain type in sysfs
>
> - Optimisation to the way in which identity-mapped regions are created
>
> - Driver updates:
> * Arm SMMU updates, including continued work on Shared Virtual Memory
> * Tegra SMMU updates, including support for PCI devices
> * Intel VT-D updates, including conversion to the IOMMU-DMA API
>
> - Cleanup, kerneldoc and minor refactoring
>
> ----------------------------------------------------------------
> Bjorn Andersson (3):
> iommu/arm-smmu: Allow implementation specific write_s2cr
> iommu/arm-smmu-qcom: Read back stream mappings
> iommu/arm-smmu-qcom: Implement S2CR quirk
>
> Chen Jun (1):
> iommu: Modify the description of iommu_sva_unbind_device
>
> Christoph Hellwig (1):
> dma-iommu: remove __iommu_dma_mmap
>
> Christophe JAILLET (1):
> iommu/vt-d: Avoid GFP_ATOMIC where it is not needed
>
> Cong Wang (1):
> iommu: avoid taking iova_rbtree_lock twice
>
> Jean-Philippe Brucker (4):
> iommu/ioasid: Add ioasid references
> iommu/sva: Add PASID helpers
> iommu/arm-smmu-v3: Implement iommu_sva_bind/unbind()
> iommu/arm-smmu-v3: Hook up ATC invalidation to mm ops
>
> John Garry (3):
> iommu: Delete split_and_remove_iova()
> iommu: Stop exporting alloc_iova_mem()
> iommu: Stop exporting free_iova_mem()
>
> Jordan Crouse (2):
> iommu/arm-smmu-qcom: Add implementation for the adreno GPU SMMU
> dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU
>
> Kaixu Xia (1):
> iommu/arm-smmu-v3: Assign boolean values to a bool variable
>
> Keqian Zhu (1):
> iommu: Defer the early return in arm_(v7s/lpae)_map
>
> Kunkun Jiang (1):
> iommu/io-pgtable-arm: Remove unused 'level' parameter from iopte_type() macro
>
> Lu Baolu (6):
> iommu: Add quirk for Intel graphic devices in map_sg
> iommu/vt-d: Update domain geometry in iommu_ops.at(de)tach_dev
> iommu/vt-d: Cleanup after converting to dma-iommu ops
> iommu: Move def_domain type check for untrusted device into core
> iommu: Fix htmldocs warnings in sysfs-kernel-iommu_groups
> iommu/vt-d: Remove set but not used variable
>
> Lukas Bulwahn (1):
> iommu/vt-d: include conditionally on CONFIG_INTEL_IOMMU_SVM
>
> Nicolin Chen (5):
> iommu/tegra-smmu: Unwrap tegra_smmu_group_get
> iommu/tegra-smmu: Expand mutex protection range
> iommu/tegra-smmu: Use fwspec in tegra_smmu_(de)attach_dev
> iommu/tegra-smmu: Rework tegra_smmu_probe_device()
> iommu/tegra-smmu: Add PCI support
>
> Rob Clark (1):
> iommu/arm-smmu: Add a way for implementations to influence SCTLR
>
> Robin Murphy (2):
> iommu/arm-smmu: Use new devm_krealloc()
> iommu/io-pgtable: Remove tlb_flush_leaf
>
> Sai Prakash Ranjan (4):
> iommu/arm-smmu: Add support for pagetable config domain attribute
> iommu/arm-smmu: Move non-strict mode to use io_pgtable_domain_attr
> iommu: arm-smmu-impl: Use table to list QCOM implementations
> iommu: arm-smmu-impl: Add a space before open parenthesis
>
> Sai Praneeth Prakhya (3):
> iommu: Add support to change default domain of an iommu group
> iommu: Take lock before reading iommu group default domain type
> iommu: Document usage of "/sys/kernel/iommu_groups/<grp_id>/type" file
>
> Suravee Suthikulpanit (1):
> iommu/amd: Add sanity check for interrupt remapping table length macros
>
> Tom Murphy (4):
> iommu: Handle freelists when using deferred flushing in iommu drivers
> iommu: Add iommu_dma_free_cpu_cached_iovas()
> iommu: Allow the dma-iommu api to use bounce buffers
> iommu/vt-d: Convert intel iommu driver to the iommu ops
>
> Vijayanand Jitta (2):
> iommu/iova: Retry from last rb tree node if iova search fails
> iommu/iova: Free global iova rcache on iova alloc failure
>
> Will Deacon (10):
> Merge branch 'stable/for-linus-5.10-rc2' of git://git.kernel.org/.../konrad/swiotlb into for-next/iommu/vt-d
> Merge branch 'for-next/iommu/io-pgtable-domain-attr' into for-next/iommu/arm-smmu
> Merge branch 'for-next/iommu/arm-smmu' into for-next/iommu/core
> Merge branch 'for-next/iommu/default-domains' into for-next/iommu/core
> Merge branch 'for-next/iommu/iova' into for-next/iommu/core
> Merge branch 'for-next/iommu/misc' into for-next/iommu/core
> Merge branch 'for-next/iommu/svm' into for-next/iommu/core
> Merge branch 'for-next/iommu/tegra-smmu' into for-next/iommu/core
> Merge branch 'for-next/iommu/vt-d' into for-next/iommu/core
> Merge branch 'for-next/iommu/fixes' into for-next/iommu/core
>
> Yang Yingliang (1):
> iommu: return error code when it can't get group
>
> Yong Wu (1):
> iommu: Improve the performance for direct_mapping
>
> .../ABI/testing/sysfs-kernel-iommu_groups | 30 +
> Documentation/admin-guide/kernel-parameters.txt | 5 -
> .../devicetree/bindings/iommu/arm,smmu.yaml | 9 +-
> drivers/gpu/drm/msm/msm_iommu.c | 1 -
> drivers/gpu/drm/panfrost/panfrost_mmu.c | 7 -
> drivers/iommu/Kconfig | 7 +
> drivers/iommu/Makefile | 1 +
> drivers/iommu/amd/amd_iommu_types.h | 19 +-
> drivers/iommu/amd/init.c | 6 +-
> drivers/iommu/amd/iommu.c | 2 +-
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 244 +++++-
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 59 +-
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 30 +
> drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 13 +-
> drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c | 17 +-
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 270 +++++-
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 76 +-
> drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 +-
> drivers/iommu/arm/arm-smmu/qcom_iommu.c | 8 -
> drivers/iommu/dma-iommu.c | 244 +++++-
> drivers/iommu/intel/Kconfig | 1 +
> drivers/iommu/intel/iommu.c | 919 +++------------------
> drivers/iommu/intel/svm.c | 6 +-
> drivers/iommu/io-pgtable-arm-v7s.c | 11 +-
> drivers/iommu/io-pgtable-arm.c | 29 +-
> drivers/iommu/ioasid.c | 38 +-
> drivers/iommu/iommu-sva-lib.c | 86 ++
> drivers/iommu/iommu-sva-lib.h | 15 +
> drivers/iommu/iommu.c | 276 ++++++-
> drivers/iommu/iova.c | 100 ++-
> drivers/iommu/ipmmu-vmsa.c | 1 -
> drivers/iommu/msm_iommu.c | 7 -
> drivers/iommu/mtk_iommu.c | 1 -
> drivers/iommu/tegra-smmu.c | 240 ++----
> drivers/xen/swiotlb-xen.c | 3 +-
> include/linux/dma-iommu.h | 8 +
> include/linux/io-pgtable.h | 19 +-
> include/linux/ioasid.h | 10 +-
> include/linux/iommu.h | 2 +
> include/linux/iova.h | 21 -
> include/linux/swiotlb.h | 10 +-
> kernel/dma/swiotlb.c | 22 +-
> 42 files changed, 1613 insertions(+), 1265 deletions(-)
> create mode 100644 drivers/iommu/iommu-sva-lib.c
> create mode 100644 drivers/iommu/iommu-sva-lib.h
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [GIT PULL] IOMMU updates for 5.11
2020-12-16 18:53 ` Will Deacon
@ 2020-12-16 22:02 ` Linus Torvalds
2020-12-16 22:10 ` Will Deacon
0 siblings, 1 reply; 6+ messages in thread
From: Linus Torvalds @ 2020-12-16 22:02 UTC (permalink / raw)
To: Will Deacon
Cc: iommu, Linux Kernel Mailing List, Joerg Roedel, Alex Williamson,
Robin Murphy, Lu Baolu, Android Kernel Team
On Wed, Dec 16, 2020 at 10:54 AM Will Deacon <will@kernel.org> wrote:
>
> I'm hoping to wind down a bit next week (ho ho ho), so I just wanted to
> check whether this had got caught in your spam filters, whether you wanted
> me to change something or whether you're just snowed under in pull requests.
No, it didn't get lost, and I just merged it. It's just that everybody
has been very good about sending their pull request early, so I've had
my hands busy, and I've gone roughly by subsystem (and today got
around to block drivers and iommus etc).
Linus
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [GIT PULL] IOMMU updates for 5.11
2020-12-14 23:45 [GIT PULL] IOMMU updates for 5.11 Will Deacon
2020-12-16 18:53 ` Will Deacon
@ 2020-12-16 22:04 ` pr-tracker-bot
1 sibling, 0 replies; 6+ messages in thread
From: pr-tracker-bot @ 2020-12-16 22:04 UTC (permalink / raw)
To: Will Deacon
Cc: torvalds, iommu, linux-kernel, Joerg Roedel, Alex Williamson,
Robin Murphy, Lu Baolu, kernel-team
The pull request you sent on Mon, 14 Dec 2020 23:45:18 +0000:
> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/iommu-updates-v5.11
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/19778dd504b5ff5c3c1283aa3da7a56f34c2c3b0
Thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [GIT PULL] IOMMU updates for 5.11
2020-12-16 22:02 ` Linus Torvalds
@ 2020-12-16 22:10 ` Will Deacon
2020-12-16 22:21 ` Linus Torvalds
0 siblings, 1 reply; 6+ messages in thread
From: Will Deacon @ 2020-12-16 22:10 UTC (permalink / raw)
To: Linus Torvalds
Cc: iommu, Linux Kernel Mailing List, Joerg Roedel, Alex Williamson,
Robin Murphy, Lu Baolu, Android Kernel Team
On Wed, Dec 16, 2020 at 02:02:00PM -0800, Linus Torvalds wrote:
> On Wed, Dec 16, 2020 at 10:54 AM Will Deacon <will@kernel.org> wrote:
> >
> > I'm hoping to wind down a bit next week (ho ho ho), so I just wanted to
> > check whether this had got caught in your spam filters, whether you wanted
> > me to change something or whether you're just snowed under in pull requests.
>
> No, it didn't get lost, and I just merged it. It's just that everybody
> has been very good about sending their pull request early, so I've had
> my hands busy, and I've gone roughly by subsystem (and today got
> around to block drivers and iommus etc).
Brill, cheers. I didn't realise you were going by subsystem, so that's
why I was getting worried.
Will
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [GIT PULL] IOMMU updates for 5.11
2020-12-16 22:10 ` Will Deacon
@ 2020-12-16 22:21 ` Linus Torvalds
0 siblings, 0 replies; 6+ messages in thread
From: Linus Torvalds @ 2020-12-16 22:21 UTC (permalink / raw)
To: Will Deacon
Cc: iommu, Linux Kernel Mailing List, Joerg Roedel, Alex Williamson,
Robin Murphy, Lu Baolu, Android Kernel Team
On Wed, Dec 16, 2020 at 2:10 PM Will Deacon <will@kernel.org> wrote:
>
> Brill, cheers. I didn't realise you were going by subsystem, so that's
> why I was getting worried.
My "by subsystem" is a bit fuzzy, and it only really happens when I
have a _lot_ of pending pull requests. Which this merge window has had
more than most, since usually they come in a bit more spread out.
But when I have tens of pull requests in my mailbox, I tend to do them
by a very rough "similarity" metric, ie I'll generally bunch up
filesystem pulls together, but also pulls from the same person
together.
So it's not necessarily by any really strict subsystem thing, but you
can kind of see some patterns.
For example, today I started out with a group of audit and security
layer ones (and printk, which doesn't really group with much anything
else), then moved through virtualization platforms to some arch
updates, and then on to io_uring and block. Which got me to scsi and
rdma, and then iommu.
Not really much of a logical ordering really, more just me trying to
not be _entirely_ random.
But the grouping is definitely also about when things come in - I had
a different group of security layer and architecture updates on
Monday. The ones today hadn't come in yet at that point.
By tomorrow, my pending pile has hopefully shrunk so much that I do
things mainly by when they come in, rather than have a big pile and
trying to do them by some rough grouping.
Linus
^ permalink raw reply [flat|nested] 6+ messages in thread
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2020-12-14 23:45 [GIT PULL] IOMMU updates for 5.11 Will Deacon
2020-12-16 18:53 ` Will Deacon
2020-12-16 22:02 ` Linus Torvalds
2020-12-16 22:10 ` Will Deacon
2020-12-16 22:21 ` Linus Torvalds
2020-12-16 22:04 ` pr-tracker-bot
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