Any progress on this SRU review? This fix is needed for QDF2400 platforms to boot and work as expected with Zesty. The patch set was reviewed by Qualcomm and was tested on QDF2400, Thunder-x and on HiSilicon HW for regressions.<div><br></div><div>Please let me know if you need any additional information that might be helpful in SRU review of these patches. <br><br>On Tue, May 9, 2017 at 11:11 AM, Manoj Iyer <manoj.iyer@canonical.com> wrote:<br>
<blockquote type="cite">
<br><br>On Fri, May 5, 2017 at 9:06 AM, Stefan Bader <stefan.bader@canonical.com> wrote:<br>
<blockquote type="cite"><div class="plaintext" style="white-space: pre-wrap;">On 03.05.2017 22:31, Manoj Iyer wrote:
<blockquote> Booting Ubuntu Zesty (4.10) kernel on Qualcomm Centriq 2400 ARM64 servers
causes soft lockups on multiple CPUs.
</blockquote>
I am not really comfortable with picking a bunch of iommu patches (1+2 now
upstream but the rest still only in linux-next) as a bug fix. Especially when
being told that changes to the generic iommu code would not have any regression
potential outside that one platform you tested (seriously?).
</div></blockquote><div><br></div><div>I have updated the bug after testing the patches on HiSilicon and Cavium systems. Please let me know if you need any thing in addition. </div><br><blockquote type="cite"><div class="plaintext" style="white-space: pre-wrap;">
-Stefan
<blockquote>
The following patches were cleanly cherry-picked from linux-next onto
Zesty 4.10.0-20.22 kernel and tested by me on the QDF2400 SDP at Canonical.
Please consider the following patches for SRU in Zesty to fix the bug
<a href="http://bugs.launchpad.net/bugs/1680549">http://bugs.launchpad.net/bugs/1680549</a>
Nate Watterson (1):
iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range
Robin Murphy (5):
iommu/dma: Stop getting dma_32bit_pfn wrong
iommu/dma: Implement PCI allocation optimisation
iommu/dma: Convert to address-based allocation
iommu/dma: Clean up MSI IOVA allocation
iommu/dma: Plumb in the per-CPU IOVA caches
drivers/iommu/dma-iommu.c | 198 ++++++++++++++++++++++++++--------------------
drivers/iommu/iova.c | 2 +-
2 files changed, 113 insertions(+), 87 deletions(-)
--
2.11.0
</blockquote>
</div><div class="plaintext" style="white-space: pre-wrap;">--
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