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Pull documentation updates from Jonathan Corbet:
"It's been a busy cycle for documentation - hopefully the busiest for a
while to come. Changes include:
- Some new Chinese translations
- Progress on the battle against double words words and non-HTTPS
URLs
- Some block-mq documentation
- More RST conversions from Mauro. At this point, that task is
essentially complete, so we shouldn't see this kind of churn again
for a while. Unless we decide to switch to asciidoc or
something...:)
- Lots of typo fixes, warning fixes, and more"
* tag 'docs-5.9' of git://git.lwn.net/linux: (195 commits)
scripts/kernel-doc: optionally treat warnings as errors
docs: ia64: correct typo
mailmap: add entry for <alobakin@marvell.com>
doc/zh_CN: add cpu-load Chinese version
Documentation/admin-guide: tainted-kernels: fix spelling mistake
MAINTAINERS: adjust kprobes.rst entry to new location
devices.txt: document rfkill allocation
PCI: correct flag name
docs: filesystems: vfs: correct flag name
docs: filesystems: vfs: correct sync_mode flag names
docs: path-lookup: markup fixes for emphasis
docs: path-lookup: more markup fixes
docs: path-lookup: fix HTML entity mojibake
CREDITS: Replace HTTP links with HTTPS ones
docs: process: Add an example for creating a fixes tag
doc/zh_CN: add Chinese translation prefer section
doc/zh_CN: add clearing-warn-once Chinese version
doc/zh_CN: add admin-guide index
doc:it_IT: process: coding-style.rst: Correct __maybe_unused compiler label
futex: MAINTAINERS: Re-add selftests directory
...
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P9 DD2 NX workbook (Table 4-36) says DMA controller uses CC=5
internally for translation fault handling. NX reserves CC=250 for
OS to notify user space when NX encounters address translation
failure on the request buffer. Not an issue in earlier releases
as NX does not get faults on kernel addresses.
This patch defines CSB_CC_FAULT_ADDRESS(250) and updates CSB.CC with
this proper error code for user space.
Fixes: c96c4436aba4 ("powerpc/vas: Update CSB and notify process for fault CRBs")
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
[mpe: Added Fixes tag and fix typo in comment]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/019fd53e7538c6f8f332d175df74b1815ef5aa8c.camel@linux.ibm.com
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Drop the doubled word "the".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20200707180414.10467-16-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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There are a few issues on this document, when built via the
building with ``make htmldocs``:
Documentation/powerpc/vas-api.rst:116: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:116: WARNING: Inline emphasis start-string without end-string.
Documentation/powerpc/vas-api.rst:117: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:117: WARNING: Inline emphasis start-string without end-string.
Documentation/powerpc/vas-api.rst:120: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:124: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:133: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:135: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:150: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:151: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:161: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:176: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:253: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:253: WARNING: Inline emphasis start-string without end-string.
Documentation/powerpc/vas-api.rst:259: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:261: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:266: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:267: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:270: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:271: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:273: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:274: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:277: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:278: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:280: WARNING: Unexpected indentation.
Documentation/powerpc/vas-api.rst:287: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/powerpc/vas-api.rst:289: WARNING: Block quote ends without a blank line; unexpected unindent.
Fixes: c12e38b1d52e ("Documentation/powerpc: VAS API")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/fc1138e563bc3a41a9e59b5dd1fe2f6a4bfad253.1592895969.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Power9 introduced Virtual Accelerator Switchboard (VAS) which allows
userspace to communicate with Nest Accelerator (NX) directly. But
kernel has to establish channel to NX for userspace. This document
describes user space API that application can use to establish
communication channel.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1587114715.2275.1135.camel@hbabu-laptop
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