On 2020/4/23 下午8:53, Jean-Philippe Brucker wrote:
The mm_exit() op will be removed from the SVA API. When a process dies
and its mm goes away, the IOMMU driver won't notify device drivers
anymore. Drivers should expect to handle a lot more aborted DMA. On the
upside, it does greatly simplify
Hello? anyone there?
Bin 于2020年4月23日周四 下午5:14写道：
> Forget to mention, I've already disabled the slab merge, so this is what
> it is.
>
> Bin 于2020年4月23日周四 下午5:11写道：
>
>> Hey, guys:
>>
>> I'm running a batch of CoreOS boxes, the lsb_release is:
>>
>> ```
>> # cat /etc/lsb-release
>>
Commit 90ae409f9eb3 ("dma-direct: fix zone selection
after an unaddressable CMA allocation") changed the logic in
dma_release_from_contiguous to remove the normal pages fallback path,
but did not update the comment. Fix that.
Signed-off-by: Peter Collingbourne
---
kernel/dma/contiguous.c | 4
Hi,
On Thu, Apr 23, 2020 at 2:55 AM Sai Prakash Ranjan
wrote:
>
> Currently on reboot/shutdown, the following messages are
> displayed on the console as error messages before the
> system reboots/shutdown as part of remove callback.
>
> On SC7180:
>
> arm-smmu 1500.iommu: removing device
Forget to mention, I've already disabled the slab merge, so this is what it
is.
Bin 于2020年4月23日周四 下午5:11写道：
> Hey, guys:
>
> I'm running a batch of CoreOS boxes, the lsb_release is:
>
> ```
> # cat /etc/lsb-release
> DISTRIB_ID="Container Linux by CoreOS"
> DISTRIB_RELEASE=2303.3.0
>
Hey, guys:
I'm running a batch of CoreOS boxes, the lsb_release is:
```
# cat /etc/lsb-release
DISTRIB_ID="Container Linux by CoreOS"
DISTRIB_RELEASE=2303.3.0
DISTRIB_CODENAME="Rhyolite"
DISTRIB_DESCRIPTION="Container Linux by CoreOS 2303.3.0 (Rhyolite)"
```
```
# uname -a
Linux cloud-worker-25
The mm_exit() op will be removed from the SVA API. When a process dies
and its mm goes away, the IOMMU driver won't notify device drivers
anymore. Drivers should expect to handle a lot more aborted DMA. On the
upside, it does greatly simplify the queue management.
The uacce_mm struct, that tracks
After binding a device to an mm, device drivers currently need to
register a mm_exit handler. This function is called when the mm exits,
to gracefully stop DMA targeting the address space and flush page faults
to the IOMMU.
This is deemed too complex for the MMU release() notifier, which may be
The IOMMU SVA API currently requires device drivers to implement an
mm_exit() callback, which stops device jobs that do DMA. This function
is called in the release() MMU notifier, when an address space that is
shared with a device exits.
It has been noted several time during discussions about SVA
On Thu, Apr 23, 2020 at 09:56:54AM +, Makarand Pawagi wrote:
[...]
> > > At a first glance, looks like this could very well fix the ACPI
> > > scenario, but I have some unclarities on the approach:
> > > * are we going to rely in DT and ACPI generic layers even if these
> > > devices are
> -Original Message-
> From: Robin Murphy
> Sent: Wednesday, April 15, 2020 11:02 PM
> To: Laurentiu Tudor ; Lorenzo Pieralisi
>
> Cc: linux-ker...@vger.kernel.org; iommu@lists.linux-foundation.org; linux-arm-
> ker...@lists.infradead.org; linux-a...@vger.kernel.org;
>
On Tue, Apr 14, 2020 at 03:13:23PM +0200, Christoph Hellwig wrote:
> Just use vmap instead of messing with vmalloc internals.
>
> Signed-off-by: Christoph Hellwig
> Acked-by: Peter Zijlstra (Intel)
Thanks!
Acked-by: Sakari Ailus
--
Sakari Ailus
Currently on reboot/shutdown, the following messages are
displayed on the console as error messages before the
system reboots/shutdown as part of remove callback.
On SC7180:
arm-smmu 1500.iommu: removing device with active domains!
arm-smmu 504.iommu: removing device with active
On 2020-04-23 14:58, Robin Murphy wrote:
On 2020-04-23 9:17 am, Sai Prakash Ranjan wrote:
[...]
Any update on the status here? If I'm reading the conversation
above,
Robin said: "we'll *always* see the warning because there's no way to
tear down the default DMA domains, and even if all
On 2020-04-23 9:17 am, Sai Prakash Ranjan wrote:
[...]
Any update on the status here? If I'm reading the conversation above,
Robin said: "we'll *always* see the warning because there's no way to
tear down the default DMA domains, and even if all devices *have* been
nicely quiesced there's no
Hi,
On 2020-04-23 01:19, Doug Anderson wrote:
Hi,
On Tue, Mar 31, 2020 at 12:53 AM Sai Prakash Ranjan
wrote:
Hi Will,
On 2020-03-31 13:14, Will Deacon wrote:
> On Tue, Mar 31, 2020 at 01:06:11PM +0530, Sai Prakash Ranjan wrote:
>> On 2020-03-30 23:54, Doug Anderson wrote:
>> > On Sat, Mar
> From: Jacob Pan
> Sent: Wednesday, April 22, 2020 2:53 AM
>
> An Intel iommu domain uses 5-level page table by default. If the
> iommu that the domain tries to attach supports less page levels,
> the top level page tables should be skipped. Add a helper to do
> this so that it could be used in
17 matches
Mail list logo
