linux.git/Documentation/powerpc/vas-api.rst, branch master

docs: move powerpc under arch

2023-10-10T19:35:55+00:00

and fix all in-tree references.

Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy.

Signed-off-by: Costa Shulyupin 
Acked-by: Michael Ellerman 
Signed-off-by: Jonathan Corbet 
Link: https://lore.kernel.org/r/20230826165737.2101199-1-costa.shul@redhat.com

Documentation: Fix typos

2023-08-18T17:29:03+00:00

Fix typos in Documentation.

Signed-off-by: Bjorn Helgaas 
Link: https://lore.kernel.org/r/20230814212822.193684-4-helgaas@kernel.org
Signed-off-by: Jonathan Corbet

Documentation/powerpc: Add proper links for manual and tests

2021-04-20T04:22:23+00:00

The links that are mentioned in this document are no longer
valid. So changed the proper links for NXGZIP user manual and
test cases.

Reported-by: Bulent Abali 
Signed-off-by: Haren Myneni 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/08511c1e92ac239f20ac88c73c59d1f8cf02e6ad.camel@linux.ibm.com

Merge tag 'docs-5.9' of git://git.lwn.net/linux

2020-08-05T05:47:54+00:00

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 
  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
  ...

powerpc/vas: Report proper error code for address translation failure

2020-07-15T13:09:55+00:00

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 
[mpe: Added Fixes tag and fix typo in comment]
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/019fd53e7538c6f8f332d175df74b1815ef5aa8c.camel@linux.ibm.com

Documentation: powerpc/vas-api: eliminate duplicated word

2020-07-13T15:44:07+00:00

Drop the doubled word "the".

Signed-off-by: Randy Dunlap 
Cc: Jonathan Corbet 
Cc: linux-doc@vger.kernel.org
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20200707180414.10467-16-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet

docs: powerpc: fix some issues at vas-api.rst

2020-06-26T16:01:20+00:00

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 
Link: https://lore.kernel.org/r/fc1138e563bc3a41a9e59b5dd1fe2f6a4bfad253.1592895969.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet

Documentation/powerpc: VAS API

2020-04-20T06:53:14+00:00

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 
Signed-off-by: Haren Myneni 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/1587114715.2275.1135.camel@hbabu-laptop