On 2021-01-12 08:00, Robin Murphy wrote:
On 2021-01-11 14:54, Isaac J. Manjarres wrote:
The iommu_map_sg() code currently iterates through the given
scatter-gather list, and in the worst case, invokes iommu_map()
for each element in the scatter-gather list, which calls into
the IOMMU driver
On 2021-01-10 23:52, Sai Prakash Ranjan wrote:
On 2021-01-11 11:52, Sai Prakash Ranjan wrote:
Hi Isaac,
I gave this series a go on chromebook and saw these warnings
and several device probe failures, logs attached below:
WARN corresponds to this code in arm_lpae_map_by_pgsize()
if
On 2021-01-08 10:18, Will Deacon wrote:
On Fri, Jan 08, 2021 at 11:17:25AM +0530, Sai Prakash Ranjan wrote:
On 2021-01-07 22:27, isa...@codeaurora.org wrote:
> On 2021-01-06 03:56, Will Deacon wrote:
> > On Thu, Dec 24, 2020 at 12:10:07PM +0530, Sai Prakash Ranjan wrote:
> > > commit
On 2021-01-07 21:47, Sai Prakash Ranjan wrote:
On 2021-01-07 22:27, isa...@codeaurora.org wrote:
On 2021-01-06 03:56, Will Deacon wrote:
On Thu, Dec 24, 2020 at 12:10:07PM +0530, Sai Prakash Ranjan wrote:
commit ecd7274fb4cd ("iommu: Remove unused IOMMU_SYS_CACHE_ONLY
flag")
removed unused
On 2021-01-06 03:56, Will Deacon wrote:
On Thu, Dec 24, 2020 at 12:10:07PM +0530, Sai Prakash Ranjan wrote:
commit ecd7274fb4cd ("iommu: Remove unused IOMMU_SYS_CACHE_ONLY flag")
removed unused IOMMU_SYS_CACHE_ONLY prot flag and along with it went
the memory type setting required for the
On 2020-12-23 05:44, Robin Murphy wrote:
On 2020-12-22 19:54, isa...@codeaurora.org wrote:
On 2020-12-22 11:27, Robin Murphy wrote:
On 2020-12-22 00:44, Isaac J. Manjarres wrote:
The io-pgtable code constructs an array of init functions for each
page table format at compile time. This is not
On 2020-12-23 05:05, Robin Murphy wrote:
On 2020-12-22 19:49, isa...@codeaurora.org wrote:
On 2020-12-22 11:27, Robin Murphy wrote:
On 2020-12-22 00:44, Isaac J. Manjarres wrote:
The SMMU driver depends on the availability of the ARM LPAE and
ARM V7S io-pgtable format code to work properly.
On 2020-12-22 11:27, Robin Murphy wrote:
On 2020-12-22 00:44, Isaac J. Manjarres wrote:
The io-pgtable code constructs an array of init functions for each
page table format at compile time. This is not ideal, as this
increases the footprint of the io-pgtable code, as well as prevents
io-pgtable
On 2020-12-22 11:27, Robin Murphy wrote:
On 2020-12-22 00:44, Isaac J. Manjarres wrote:
The SMMU driver depends on the availability of the ARM LPAE and
ARM V7S io-pgtable format code to work properly. In preparation
Nit: we don't really depend on v7s - we *can* use it if it's
available,
On 2020-12-21 07:22, Robin Murphy wrote:
On 2020-12-18 18:59, isa...@codeaurora.org wrote:
On 2020-12-18 04:38, Robin Murphy wrote:
On 2020-12-18 08:38, Isaac J. Manjarres wrote:
The io-pgtable-arm and io-pgtable-arm-v7s source files will
be compiled as separate modules, along with the
On 2020-12-18 04:38, Robin Murphy wrote:
On 2020-12-18 08:38, Isaac J. Manjarres wrote:
The io-pgtable-arm and io-pgtable-arm-v7s source files will
be compiled as separate modules, along with the io-pgtable
source. Export the symbols for the io-pgtable init function
structures for the
On 2018-11-14 03:46, William Kucharski wrote:
On Nov 14, 2018, at 4:09 AM, David Laight
wrote:
From: William Kucharski
Sent: 14 November 2018 10:35
On Nov 13, 2018, at 5:51 PM, Isaac J. Manjarres
wrote:
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 852eb4e..0293645 100644
---
On 2018-11-14 03:46, William Kucharski wrote:
On Nov 14, 2018, at 4:09 AM, David Laight
wrote:
From: William Kucharski
Sent: 14 November 2018 10:35
On Nov 13, 2018, at 5:51 PM, Isaac J. Manjarres
wrote:
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 852eb4e..0293645 100644
---
Hi Sebastian,
Thanks for the response.
"I haven't look in detail at this but your new preempt_disable() makes
things unbalanced for the err != 0 case."
This cannot happen. The only possible return values of this function
are -ENOENT or 0.
In the case where we return -ENOENT, we'll go
straight
Hi Sebastian,
Thanks for the response.
"I haven't look in detail at this but your new preempt_disable() makes
things unbalanced for the err != 0 case."
This cannot happen. The only possible return values of this function
are -ENOENT or 0.
In the case where we return -ENOENT, we'll go
straight
Hi all,
Are there any comments about this patch?
Thanks,
Isaac Manjarres
On 2018-07-17 12:35, Isaac J. Manjarres wrote:
This commit:
9fb8d5dc4b64 ("stop_machine, Disable preemption when
waking two stopper threads")
does not fully address the race condition that can occur
as follows:
On one
Hi all,
Are there any comments about this patch?
Thanks,
Isaac Manjarres
On 2018-07-17 12:35, Isaac J. Manjarres wrote:
This commit:
9fb8d5dc4b64 ("stop_machine, Disable preemption when
waking two stopper threads")
does not fully address the race condition that can occur
as follows:
On one
Alright, we will make a new patch for this. Thanks for the feedback.
Thanks,
Isaac Manjarres
On 2018-07-17 11:34, Peter Zijlstra wrote:
On Tue, Jul 17, 2018 at 09:30:17AM -0700, Isaac J. Manjarres wrote:
After cpu_stop_queue_two_works() queues the cpu_stop works
for the stopper threads, it
Alright, we will make a new patch for this. Thanks for the feedback.
Thanks,
Isaac Manjarres
On 2018-07-17 11:34, Peter Zijlstra wrote:
On Tue, Jul 17, 2018 at 09:30:17AM -0700, Isaac J. Manjarres wrote:
After cpu_stop_queue_two_works() queues the cpu_stop works
for the stopper threads, it
Hi Peter,
Thanks for the feedback. I'll make sure to incorporate it into my next
patch, and send that soon.
Thanks,
Isaac Manjarres
On 2018-07-02 05:15, Peter Zijlstra wrote:
On Fri, Jun 29, 2018 at 01:55:12PM -0700, Isaac J. Manjarres wrote:
When cpu_stop_queue_two_works() begins to wake the
Hi Peter,
Thanks for the feedback. I'll make sure to incorporate it into my next
patch, and send that soon.
Thanks,
Isaac Manjarres
On 2018-07-02 05:15, Peter Zijlstra wrote:
On Fri, Jun 29, 2018 at 01:55:12PM -0700, Isaac J. Manjarres wrote:
When cpu_stop_queue_two_works() begins to wake the
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