On 2019/3/1 19:07, Jean-Philippe Brucker wrote:
> Hi Leizhen,
>
> On 01/03/2019 04:44, Leizhen (ThunderTown) wrote:
>>
>>
>> On 2019/2/26 20:36, Hanjun Guo wrote:
>>> Hi Jean,
>>>
>>> On 2019/1/31 22:55, Jean-Philippe Brucker wrote:
Hi,
On 31/01/2019 13:52, Zhen Lei wrote:
>
The addresses within a single page are always contiguous, so it's
not so necessary to always allocate one single page from CMA area.
Since the CMA area has a limited predefined size of space, it may
run out of space in heavy use cases, where there might be quite a
lot CMA pages being allocated for
The pull request you sent on Fri, 1 Mar 2019 17:57:05 +0100:
> git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
> tags/iommu-fix-v5.0-rc8
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/a215ce8f0e00c2d707080236f1aafec337371043
Thank you!
--
Deet-doot-dot
On Fri, Mar 1, 2019 at 2:38 PM Jordan Crouse wrote:
>
> Add support for a split pagetable (TTBR0/TTBR1) scheme for
> arm-smmu-v2. If split pagetables are enabled, create a
> pagetable for TTBR1 and set up the sign extension bit so
> that all IOVAs with that bit set are mapped and translated
> from
From: Yang Wei
Delete a superfluous semicolon in mtk_iommu_add_device().
Signed-off-by: Yang Wei
---
drivers/iommu/mtk_iommu_v1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 7e0df67..52b01e3 100644
--- a/
An upcoming change to arm-smmu will add auxiliary domains that will allow
a leaf driver to create and map additional pagetables for device
specific uses. By definition aux arm-smmu domains will not be allowed
to touch the hardware directly so allow for the TLB operations for
a given pagetable confi
Add an attribute to return the base address of the pagetable. This is used
by auxiliary domains from arm-smmu to return the address of the pagetable
to the leaf driver so that it can set the appropriate pagetable through
it's own means.
Signed-off-by: Jordan Crouse
---
include/linux/iommu.h | 1
Support the new auxiliary domain API for arm-smmuv2 to initialize and
support multiple pagetables for a SMMU device. Since the smmu-v2 hardware
doesn't have any built in support for switching the pagetable base it is
left as an exercise to the caller to actually use the pagetable; aux
domains in th
Add support for a split pagetable (TTBR0/TTBR1) scheme for
arm-smmu-v2. If split pagetables are enabled, create a
pagetable for TTBR1 and set up the sign extension bit so
that all IOVAs with that bit set are mapped and translated
from the TTBR1 pagetable.
Signed-off-by: Jordan Crouse
---
driver
This is the latest incarnation of per-instance pagetable support for the MSM GPU
driver. Some of these have been seen before, most recently [1].
Per-instance pagetables allow the target GPU driver to create and manage
an individual pagetable for each file descriptor instance and switch
between the
Add a new domain attribute to enable split pagetable support for devices
devices that support it.
Signed-off-by: Jordan Crouse
---
include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index e90da6b..3f2250b 100644
--- a/include/
If you're bisecting why your peripherals stopped working, it's
probably this CL. Specifically if you see this in your dmesg:
Unexpected global fault, this could be serious
...then it's almost certainly this CL.
Running your IOMMU-enabled peripherals with the IOMMU in bypass mode
is insecure and
Hi,
On Fri, Feb 15, 2019 at 2:37 PM Rob Clark wrote:
>
> On Thu, Feb 14, 2019 at 7:40 PM Doug Anderson wrote:
> >
> > Hi,
> >
> > On Thu, Feb 14, 2019 at 1:32 PM Robin Murphy wrote:
> > >
> > > Hi Doug,
> > >
> > > On 2019-02-14 8:44 pm, Douglas Anderson wrote:
> > > > Right now the only way to
Hi Linus,
The following changes since commit 8950dcd83ae7d62bdc2a60507949acebd85399f2:
iommu/vt-d: Leave scalable mode default off (2019-01-30 17:23:58 +0100)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
tags/iommu-fix-v5.0-rc8
for y
On 27/02/2019 23:22, Rob Herring wrote:
ARM Mali midgard GPU page tables are similar to standard 64-bit stage 1
page tables, but have a few differences. Add a new format type to
represent the format. The input address size is 48-bits and the output
address size is 40-bits (and possibly less?). No
Hi Leizhen,
On 01/03/2019 04:44, Leizhen (ThunderTown) wrote:
>
>
> On 2019/2/26 20:36, Hanjun Guo wrote:
>> Hi Jean,
>>
>> On 2019/1/31 22:55, Jean-Philippe Brucker wrote:
>>> Hi,
>>>
>>> On 31/01/2019 13:52, Zhen Lei wrote:
Currently, many peripherals are faster than before. For example,
On Fri, Mar 01, 2019 at 11:23:09AM +0800, Lu Baolu wrote:
> Hi Joerg,
>
> This includes several small fixes. All are stable kernel irrelated.
> Please consider it for 5.1-rc1.
>
> Best regards,
> Lu Baolu
>
> Lu Baolu (4):
> iommu/vt-d: Disable ATS support on untrusted devices
> iommu/vt-d:
It seems that the picture is too big, I change it from jpg to png.
On 2019/3/1 17:02, Leizhen (ThunderTown) wrote:
> Hi All,
> I drew a flowchart, hope this can help you to understand my method.
>
> On 2019/2/19 15:54, Zhen Lei wrote:
>> To reduce the risk of further crash, the device_shutdo
On Thu, Feb 28, 2019 at 10:45:01PM +0800, Yang Wei wrote:
> From: Yang Wei
>
> Delete a superfluous semicolon in mtk_iommu_add_device().
>
> Signed-off-by: Yang Wei
> ---
> drivers/iommu/mtk_iommu_v1.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks.
_
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