* [GIT PULL] iommu/arm-smmu: Fixes for 4.13
@ 2017-07-24 12:29 ` Will Deacon
0 siblings, 0 replies; 4+ messages in thread
From: Will Deacon @ 2017-07-24 12:29 UTC (permalink / raw)
To: joro-zLv9SwRftAIdnm+yROfE0A
Cc: ray.jui-dY08KVG/lbpWk0Htik3J/w,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
Hi Joerg,
Please can you pull these arm-smmu/io-pgtable fixes for 4.13? The two main
things are:
1. Ensure that we reject out-of-range map/unmap requests in the io-pgtable
code (rather than operate on silently truncated addresses).
2. Serialise TLB sync operations on arm-smmu, otherwise we can limit
forward progress and cause timeouts in the driver (as observed by Ray).
This undoes a previous micro-optimisation that is no longer sensible
with the pgtable locsk removed, but which is required for correctness
on the MTK IOMMU, so the MTK driver is updated to keep things working
there.
Thanks,
Will
--->8
The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877:
Linux v4.13-rc1 (2017-07-15 15:22:10 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-joerg/arm-smmu/fixes
for you to fetch changes up to 76557391433c77d330cede1a531b358d2f90df66:
iommu/io-pgtable: Sanitise map/unmap addresses (2017-07-20 10:30:28 +0100)
----------------------------------------------------------------
Robin Murphy (3):
iommu/mtk: Avoid redundant TLB syncs locally
Revert "iommu/io-pgtable: Avoid redundant TLB syncs"
iommu/io-pgtable: Sanitise map/unmap addresses
Vivek Gautam (1):
iommu/arm-smmu: Fix the error path in arm_smmu_add_device
Will Deacon (1):
iommu/arm-smmu: Reintroduce locking around TLB sync operations
drivers/iommu/arm-smmu.c | 18 +++++++++++++-----
drivers/iommu/io-pgtable-arm-v7s.c | 6 ++++++
drivers/iommu/io-pgtable-arm.c | 7 +++++++
drivers/iommu/io-pgtable.h | 9 +--------
drivers/iommu/mtk_iommu.c | 6 ++++++
drivers/iommu/mtk_iommu.h | 1 +
6 files changed, 34 insertions(+), 13 deletions(-)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [GIT PULL] iommu/arm-smmu: Fixes for 4.13
@ 2017-07-24 12:29 ` Will Deacon
0 siblings, 0 replies; 4+ messages in thread
From: Will Deacon @ 2017-07-24 12:29 UTC (permalink / raw)
To: linux-arm-kernel
Hi Joerg,
Please can you pull these arm-smmu/io-pgtable fixes for 4.13? The two main
things are:
1. Ensure that we reject out-of-range map/unmap requests in the io-pgtable
code (rather than operate on silently truncated addresses).
2. Serialise TLB sync operations on arm-smmu, otherwise we can limit
forward progress and cause timeouts in the driver (as observed by Ray).
This undoes a previous micro-optimisation that is no longer sensible
with the pgtable locsk removed, but which is required for correctness
on the MTK IOMMU, so the MTK driver is updated to keep things working
there.
Thanks,
Will
--->8
The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877:
Linux v4.13-rc1 (2017-07-15 15:22:10 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-joerg/arm-smmu/fixes
for you to fetch changes up to 76557391433c77d330cede1a531b358d2f90df66:
iommu/io-pgtable: Sanitise map/unmap addresses (2017-07-20 10:30:28 +0100)
----------------------------------------------------------------
Robin Murphy (3):
iommu/mtk: Avoid redundant TLB syncs locally
Revert "iommu/io-pgtable: Avoid redundant TLB syncs"
iommu/io-pgtable: Sanitise map/unmap addresses
Vivek Gautam (1):
iommu/arm-smmu: Fix the error path in arm_smmu_add_device
Will Deacon (1):
iommu/arm-smmu: Reintroduce locking around TLB sync operations
drivers/iommu/arm-smmu.c | 18 +++++++++++++-----
drivers/iommu/io-pgtable-arm-v7s.c | 6 ++++++
drivers/iommu/io-pgtable-arm.c | 7 +++++++
drivers/iommu/io-pgtable.h | 9 +--------
drivers/iommu/mtk_iommu.c | 6 ++++++
drivers/iommu/mtk_iommu.h | 1 +
6 files changed, 34 insertions(+), 13 deletions(-)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] iommu/arm-smmu: Fixes for 4.13
2017-07-24 12:29 ` Will Deacon
@ 2017-07-25 13:01 ` Joerg Roedel
-1 siblings, 0 replies; 4+ messages in thread
From: Joerg Roedel @ 2017-07-25 13:01 UTC (permalink / raw)
To: Will Deacon
Cc: ray.jui-dY08KVG/lbpWk0Htik3J/w,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Mon, Jul 24, 2017 at 01:29:43PM +0100, Will Deacon wrote:
> The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877:
>
> Linux v4.13-rc1 (2017-07-15 15:22:10 -0700)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-joerg/arm-smmu/fixes
Pulled into iommu/fixes, thanks Will.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [GIT PULL] iommu/arm-smmu: Fixes for 4.13
@ 2017-07-25 13:01 ` Joerg Roedel
0 siblings, 0 replies; 4+ messages in thread
From: Joerg Roedel @ 2017-07-25 13:01 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Jul 24, 2017 at 01:29:43PM +0100, Will Deacon wrote:
> The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877:
>
> Linux v4.13-rc1 (2017-07-15 15:22:10 -0700)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-joerg/arm-smmu/fixes
Pulled into iommu/fixes, thanks Will.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-07-25 13:01 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2017-07-24 12:29 [GIT PULL] iommu/arm-smmu: Fixes for 4.13 Will Deacon
2017-07-24 12:29 ` Will Deacon
[not found] ` <20170724122943.GE29919-5wv7dgnIgG8@public.gmane.org>
2017-07-25 13:01 ` Joerg Roedel
2017-07-25 13:01 ` Joerg Roedel
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