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Message-Id: <9ca05fad12390931bc7da0fa2502d1a450a4b87f.1588021877.git.mchehab+huawei@kernel.org>
Date: Mon, 27 Apr 2020 23:17:15 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
Jeremy Kerr <jk@...abs.org>, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v3 23/29] docs: filesystems: convert spufs/spufs.txt to ReST
This file is at groff output format. Manually convert it to
ReST format, trying to preserve a similar output after parsed.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
Documentation/filesystems/spufs/index.rst | 1 +
.../spufs/{spufs.txt => spufs.rst} | 59 +++++++++----------
MAINTAINERS | 2 +-
3 files changed, 30 insertions(+), 32 deletions(-)
rename Documentation/filesystems/spufs/{spufs.txt => spufs.rst} (95%)
diff --git a/Documentation/filesystems/spufs/index.rst b/Documentation/filesystems/spufs/index.rst
index 39553c6ebefd..939cf59a7d9e 100644
--- a/Documentation/filesystems/spufs/index.rst
+++ b/Documentation/filesystems/spufs/index.rst
@@ -8,4 +8,5 @@ SPU Filesystem
.. toctree::
:maxdepth: 1
+ spufs
spu_create
diff --git a/Documentation/filesystems/spufs/spufs.txt b/Documentation/filesystems/spufs/spufs.rst
similarity index 95%
rename from Documentation/filesystems/spufs/spufs.txt
rename to Documentation/filesystems/spufs/spufs.rst
index caf36aaae804..8a42859bb100 100644
--- a/Documentation/filesystems/spufs/spufs.txt
+++ b/Documentation/filesystems/spufs/spufs.rst
@@ -1,12 +1,18 @@
-SPUFS(2) Linux Programmer's Manual SPUFS(2)
+.. SPDX-License-Identifier: GPL-2.0
+=====
+spufs
+=====
+Name
+====
-NAME
spufs - the SPU file system
-DESCRIPTION
+Description
+===========
+
The SPU file system is used on PowerPC machines that implement the Cell
Broadband Engine Architecture in order to access Synergistic Processor
Units (SPUs).
@@ -21,7 +27,9 @@ DESCRIPTION
ally add or remove files.
-MOUNT OPTIONS
+Mount Options
+=============
+
uid=<uid>
set the user owning the mount point, the default is 0 (root).
@@ -29,7 +37,9 @@ MOUNT OPTIONS
set the group owning the mount point, the default is 0 (root).
-FILES
+Files
+=====
+
The files in spufs mostly follow the standard behavior for regular sys-
tem calls like read(2) or write(2), but often support only a subset of
the operations supported on regular file systems. This list details the
@@ -125,14 +135,12 @@ FILES
space is available for writing.
- /mbox_stat
- /ibox_stat
- /wbox_stat
+ /mbox_stat, /ibox_stat, /wbox_stat
Read-only files that contain the length of the current queue, i.e. how
many words can be read from mbox or ibox or how many words can be
written to wbox without blocking. The files can be read only in 4-byte
units and return a big-endian binary integer number. The possible
- operations on an open *box_stat file are:
+ operations on an open ``*box_stat`` file are:
read(2)
If a count smaller than four is requested, read returns -1 and
@@ -143,12 +151,7 @@ FILES
in EAGAIN.
- /npc
- /decr
- /decr_status
- /spu_tag_mask
- /event_mask
- /srr0
+ /npc, /decr, /decr_status, /spu_tag_mask, /event_mask, /srr0
Internal registers of the SPU. The representation is an ASCII string
with the numeric value of the next instruction to be executed. These
can be used in read/write mode for debugging, but normal operation of
@@ -157,17 +160,14 @@ FILES
The contents of these files are:
+ =================== ===================================
npc Next Program Counter
-
decr SPU Decrementer
-
decr_status Decrementer Status
-
spu_tag_mask MFC tag mask for SPU DMA
-
event_mask Event mask for SPU interrupts
-
srr0 Interrupt Return address register
+ =================== ===================================
The possible operations on an open npc, decr, decr_status,
@@ -206,8 +206,7 @@ FILES
from the data buffer, updating the value of the fpcr register.
- /signal1
- /signal2
+ /signal1, /signal2
The two signal notification channels of an SPU. These are read-write
files that operate on a 32 bit word. Writing to one of these files
triggers an interrupt on the SPU. The value written to the signal
@@ -233,8 +232,7 @@ FILES
file.
- /signal1_type
- /signal2_type
+ /signal1_type, /signal2_type
These two files change the behavior of the signal1 and signal2 notifi-
cation files. The contain a numerical ASCII string which is read as
either "1" or "0". In mode 0 (overwrite), the hardware replaces the
@@ -259,18 +257,17 @@ FILES
the previous setting.
-EXAMPLES
+Examples
+========
/etc/fstab entry
none /spu spufs gid=spu 0 0
-AUTHORS
+Authors
+=======
Arnd Bergmann <arndb@...ibm.com>, Mark Nutter <mnutter@...ibm.com>,
Ulrich Weigand <Ulrich.Weigand@...ibm.com>
-SEE ALSO
+See Also
+========
capabilities(7), close(2), spu_create(2), spu_run(2), spufs(7)
-
-
-
-Linux 2005-09-28 SPUFS(2)
diff --git a/MAINTAINERS b/MAINTAINERS
index ff9094b9310a..3b684c061677 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15938,7 +15938,7 @@ M: Jeremy Kerr <jk@...abs.org>
L: linuxppc-dev@...ts.ozlabs.org
S: Supported
W: http://www.ibm.com/developerworks/power/cell/
-F: Documentation/filesystems/spufs.txt
+F: Documentation/filesystems/spufs/spufs.rst
F: arch/powerpc/platforms/cell/spufs/
SQUASHFS FILE SYSTEM
--
2.25.4
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