Tj,
I have posted RFCv3 in the BZ
https://bugzilla.kernel.org/show_bug.cgi?id=201753.
RFCv3 patch adds the logic to retry checking after 20msec wait for each retry loop since I have founded that certain
platform takes about 10msec for the power gating to disable.
Please give this a try to se
VMD will retransmit child device MSI-X using its own MSI-X table and
requester-id. This limits the number of MSI-X available to the whole
child device domain to the number of VMD MSI-X interrupts.
Some VMD devices have a mode where this remapping can be disabled,
allowing child device interrupts t
The Intel Volume Management Device acts similar to a PCI-to-PCI bridge in that
it changes downstream devices' requester-ids to its own. As VMD supports PCIe
devices, it has its own MSI-X table and transmits child device MSI-X by
remapping child device MSI-X and handling like a demultiplexer.
Some
VMD retransmits child device MSI-X with the VMD endpoint's requester-id.
In order to support direct interrupt remapping of VMD child devices,
ensure that the IRTE is programmed with the VMD endpoint's requester-id
using pci_real_dma_dev().
Acked-by: Lu Baolu
Acked-by: Joerg Roedel
Signed-off-by:
On Fri, 2021-02-05 at 15:57 -0600, Bjorn Helgaas wrote:
> On Thu, Feb 04, 2021 at 12:09:06PM -0700, Jon Derrick wrote:
> > VMD will retransmit child device MSI/X using its own MSI/X table and
> > requester-id. This limits the number of MSI/X available to the whole
> > child device domain to the num
Quoting Rob Herring (2021-02-02 12:55:42)
> Running 'dt-validate -m' will flag any compatible strings missing a schema.
> Fix all the errors found in DT binding examples. Most of these are just
> typos.
>
> Cc: Stephen Boyd
> Cc: Maxime Ripard
> Cc: Chen-Yu Tsai
> Cc: Linus Walleij
> Cc: Herbe
On Tue, Feb 02, 2021 at 02:55:42PM -0600, Rob Herring wrote:
> Running 'dt-validate -m' will flag any compatible strings missing a schema.
> Fix all the errors found in DT binding examples. Most of these are just
> typos.
>
> Cc: Stephen Boyd
> Cc: Maxime Ripard
> Cc: Chen-Yu Tsai
> Cc: Linus W
On Thu, Feb 04, 2021 at 12:09:06PM -0700, Jon Derrick wrote:
> VMD will retransmit child device MSI/X using its own MSI/X table and
> requester-id. This limits the number of MSI/X available to the whole
> child device domain to the number of VMD MSI/X interrupts.
>
> Some VMD devices have a mode w
The pull request you sent on Fri, 5 Feb 2021 17:01:57 +0100:
> git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
> tags/iommu-fixes-v5.11-rc6
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/97ba0c7413f83ab3b43a5ba05362ecc837fce518
Thank you!
--
Deet-doot-
On Wed, Feb 03, 2021 at 02:36:38PM -0500, Konrad Rzeszutek Wilk wrote:
> > So what? If you guys want to provide a new capability you'll have to do
> > work. And designing a new protocol based around the fact that the
> > hardware/hypervisor is not trusted and a copy is always required makes
> > a
On 2021-01-15 22:47, Robin Murphy wrote:
On 2021-01-15 15:14, Russell King - ARM Linux admin wrote:
On Mon, Jan 11, 2021 at 08:01:48PM +, Robin Murphy wrote:
On 2021-01-07 02:45, chenxiang (M) wrote:
Hi Will,� Robin or other guys,
When debugging SMMU/SVA issue on huawei ARM64 board, we
On 2021-02-05 11:48, Robin Murphy wrote:
On 2021-02-05 09:13, Keqian Zhu wrote:
Hi Robin and Jean,
On 2021/2/5 3:50, Robin Murphy wrote:
On 2021-01-28 15:17, Keqian Zhu wrote:
From: jiangkunkun
The SMMU which supports HTTU (Hardware Translation Table Update) can
update the access flag and t
Hi Linus,
The following changes since commit 1048ba83fb1c00cd24172e23e8263972f6b5d9ac:
Linux 5.11-rc6 (2021-01-31 13:50:09 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
tags/iommu-fixes-v5.11-rc6
for you to fetch changes up to
This error path is supposed to return -EINVAL. It used to return
directly but we added some clean up and accidentally removed the
error code. Also I fixed a typo in the error message.
Fixes: c0b57581b73b ("iommu/mediatek: Add power-domain operation")
Signed-off-by: Dan Carpenter
---
drivers/io
On 2021-02-04 03:16, Will Deacon wrote:
On Tue, Feb 02, 2021 at 11:56:27AM +0530, Sai Prakash Ranjan wrote:
On 2021-02-01 23:50, Jordan Crouse wrote:
> On Mon, Feb 01, 2021 at 08:20:44AM -0800, Rob Clark wrote:
> > On Mon, Feb 1, 2021 at 3:16 AM Will Deacon wrote:
> > > On Fri, Jan 29, 2021 at
On 2021/2/4 23:58, Robin Murphy wrote:
> On 2021-01-29 09:06, Zhou Wang wrote:
>> This patch adds debug interfaces for SMMUv3 driver in sysfs. It adds debug
>> related files under /sys/kernel/debug/iommu/smmuv3.
>>
>> User should firstly set device and pasid to pci_dev and pasid by:
>> (currently o
I've pushed the updated series out to:
http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/swiotlb-offset
but I'm going to wait until next week before patch bombing everyone
again.
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Thanks,
applied.
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On 2021-02-05 09:13, Keqian Zhu wrote:
Hi Robin and Jean,
On 2021/2/5 3:50, Robin Murphy wrote:
On 2021-01-28 15:17, Keqian Zhu wrote:
From: jiangkunkun
The SMMU which supports HTTU (Hardware Translation Table Update) can
update the access flag and the dirty state of TTD by hardware. It is
e
In a real dma mapping user case, after dma_map is done, data will be
transmit. Thus, in multi-threaded user scenario, IOMMU contention
should not be that severe. For example, if users enable multiple
threads to send network packets through 1G/10G/100Gbps NIC, usually
the steps will be: map -> trans
The original code put five u32 before a u64 expansion[10] array. Five is
odd, this will cause trouble in the extension of the structure by adding
new features. This patch moves to use u8 for reserved field to avoid
future alignment risk.
Meanwhile, it also clears the memory of struct map_benchmark
On Fri, Feb 05, 2021 at 10:52:37AM +, Song Bao Hua (Barry Song) wrote:
> I assume there is no need to keep the same size with 5.11-rc, so
> could change the struct to:
>
> struct map_benchmark {
> __u64 avg_map_100ns; /* average map latency in 100ns */
> __u64 map_stddev; /* standa
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Friday, February 5, 2021 11:36 PM
> To: Song Bao Hua (Barry Song)
> Cc: Christoph Hellwig ; m.szyprow...@samsung.com;
> robin.mur...@arm.com; iommu@lists.linux-foundation.org;
> linux-ker...@vger.kernel.org; lin
On Fri, Feb 05, 2021 at 10:32:26AM +, Song Bao Hua (Barry Song) wrote:
> I can keep the struct size unchanged by changing the struct to
>
> struct map_benchmark {
> __u64 avg_map_100ns; /* average map latency in 100ns */
> __u64 map_stddev; /* standard deviation of map latency */
>
On Thu, Feb 04, 2021 at 11:13:45PM +, Robin Murphy wrote:
>> + */
>> +static unsigned int swiotlb_align_offset(struct device *dev, u64 addr)
>> +{
>> +unsigned min_align_mask = dma_get_min_align_mask(dev);
>> +
>> +if (!min_align_mask)
>> +return 0;
>
> I doubt that's benefi
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Friday, February 5, 2021 10:21 PM
> To: Song Bao Hua (Barry Song)
> Cc: m.szyprow...@samsung.com; h...@lst.de; robin.mur...@arm.com;
> iommu@lists.linux-foundation.org; linux-ker...@vger.kernel.org;
> linux...@o
Hi Keqian,
On Fri, Feb 05, 2021 at 05:13:50PM +0800, Keqian Zhu wrote:
> > We need to accommodate the firmware override as well if we need this to be
> > meaningful. Jean-Philippe is already carrying a suitable patch in the SVA
> > stack[1].
> Robin, Thanks for pointing it out.
>
> Jean, I see
On Thu, Feb 04, 2021 at 10:12:31PM +, Robin Murphy wrote:
>> -mask = dma_get_seg_boundary(hwdev);
>> +if (boundary_mask + 1 == ~0UL)
>
> Either "mask == ~0UL" or "mask + 1 == 0", surely?
I switched forth and back a few times and ended up with the broken
variant in the middle. Fixed.
_
On Thu, Feb 04, 2021 at 10:09:02PM +, Robin Murphy wrote:
>> diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
>> index 838dbad10ab916..0c0b81799edbdb 100644
>> --- a/kernel/dma/swiotlb.c
>> +++ b/kernel/dma/swiotlb.c
>> @@ -194,6 +194,11 @@ static inline unsigned long io_tlb_offset(unsi
Hi Guillaume,
On Thu, Feb 04, 2021 at 09:24:23PM -0800, Nicolin Chen wrote:
> > Please let us know if you need any help debugging this issue or
> > to try a fix on this platform.
>
> Yes, I don't have any Tegra124 platform to run. It'd be very nice
> if you can run some debugging patch (I can pro
On Fri, Feb 05, 2021 at 03:00:35PM +1300, Barry Song wrote:
> + __u32 dma_trans_ns; /* time for DMA transmission in ns */
> __u64 expansion[10];/* For future use */
We need to keep the struct size, so the expansion field needs to
shrink by the equivalent amount of data that is added
Hi Robin and Jean,
On 2021/2/5 3:50, Robin Murphy wrote:
> On 2021-01-28 15:17, Keqian Zhu wrote:
>> From: jiangkunkun
>>
>> The SMMU which supports HTTU (Hardware Translation Table Update) can
>> update the access flag and the dirty state of TTD by hardware. It is
>> essential to track dirty pag
On Thu, Feb 04, 2021 at 03:00:01PM +, Colin King wrote:
> drivers/iommu/mtk_iommu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks.
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On Thu, Feb 04, 2021 at 12:09:04PM -0700, Jon Derrick wrote:
> Jon Derrick (2):
> iommu/vt-d: Use Real PCI DMA device for IRTE
> PCI: vmd: Disable MSI/X remapping when possible
>
> drivers/iommu/intel/irq_remapping.c | 3 +-
> drivers/pci/controller/vmd.c| 60 +++-
On 2/5/21 1:50 PM, David Hildenbrand wrote:
> On 04.02.21 08:01, Anshuman Khandual wrote:
>> MAX_ORDER which invariably depends on FORCE_MAX_ZONEORDER can be a variable
>> for a given page size, depending on whether TRANSPARENT_HUGEPAGE is enabled
>> or not. In certain page size and THP combinat
On 04.02.21 08:01, Anshuman Khandual wrote:
MAX_ORDER which invariably depends on FORCE_MAX_ZONEORDER can be a variable
for a given page size, depending on whether TRANSPARENT_HUGEPAGE is enabled
or not. In certain page size and THP combinations HUGETLB_PAGE_ORDER can be
greater than MAX_ORDER, m
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