From: Changbin Du <changbin.du@gmail.com>
To: rjw@rjwysocki.net, Jonathan Corbet <corbet@lwn.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
fenghua.yu@intel.com, linuxppc-dev@lists.ozlabs.org,
linux-acpi@vger.kernel.org, linux-gpio@vger.kernel.org,
mchehab+samsung@kernel.org, Changbin Du <changbin.du@gmail.com>
Subject: [PATCH v6 16/24] Documentation: ACPI: move debug.txt to firmware-guide/acpi and convert to reST
Date: Thu, 25 Apr 2019 23:31:09 +0800 [thread overview]
Message-ID: <20190425153117.16057-17-changbin.du@gmail.com> (raw)
In-Reply-To: <20190425153117.16057-1-changbin.du@gmail.com>
This converts the plain text documentation to reStructuredText format and
add it to Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
.../acpi/debug.rst} | 31 ++++++++++---------
Documentation/firmware-guide/acpi/index.rst | 3 +-
2 files changed, 19 insertions(+), 15 deletions(-)
rename Documentation/{acpi/debug.txt => firmware-guide/acpi/debug.rst} (91%)
diff --git a/Documentation/acpi/debug.txt b/Documentation/firmware-guide/acpi/debug.rst
similarity index 91%
rename from Documentation/acpi/debug.txt
rename to Documentation/firmware-guide/acpi/debug.rst
index 65bf47c46b6d..1a152dd1d765 100644
--- a/Documentation/acpi/debug.txt
+++ b/Documentation/firmware-guide/acpi/debug.rst
@@ -1,18 +1,21 @@
- ACPI Debug Output
+.. SPDX-License-Identifier: GPL-2.0
+=================
+ACPI Debug Output
+=================
The ACPI CA, the Linux ACPI core, and some ACPI drivers can generate debug
output. This document describes how to use this facility.
Compile-time configuration
---------------------------
+==========================
ACPI debug output is globally enabled by CONFIG_ACPI_DEBUG. If this config
option is turned off, the debug messages are not even built into the
kernel.
Boot- and run-time configuration
---------------------------------
+================================
When CONFIG_ACPI_DEBUG=y, you can select the component and level of messages
you're interested in. At boot-time, use the acpi.debug_layer and
@@ -21,7 +24,7 @@ debug_layer and debug_level files in /sys/module/acpi/parameters/ to control
the debug messages.
debug_layer (component)
------------------------
+=======================
The "debug_layer" is a mask that selects components of interest, e.g., a
specific driver or part of the ACPI interpreter. To build the debug_layer
@@ -33,7 +36,7 @@ to /sys/module/acpi/parameters/debug_layer.
The possible components are defined in include/acpi/acoutput.h and
include/acpi/acpi_drivers.h. Reading /sys/module/acpi/parameters/debug_layer
-shows the supported mask values, currently these:
+shows the supported mask values, currently these::
ACPI_UTILITIES 0x00000001
ACPI_HARDWARE 0x00000002
@@ -65,7 +68,7 @@ shows the supported mask values, currently these:
ACPI_PROCESSOR_COMPONENT 0x20000000
debug_level
------------
+===========
The "debug_level" is a mask that selects different types of messages, e.g.,
those related to initialization, method execution, informational messages, etc.
@@ -81,7 +84,7 @@ to /sys/module/acpi/parameters/debug_level.
The possible levels are defined in include/acpi/acoutput.h. Reading
/sys/module/acpi/parameters/debug_level shows the supported mask values,
-currently these:
+currently these::
ACPI_LV_INIT 0x00000001
ACPI_LV_DEBUG_OBJECT 0x00000002
@@ -113,9 +116,9 @@ currently these:
ACPI_LV_EVENTS 0x80000000
Examples
---------
+========
-For example, drivers/acpi/bus.c contains this:
+For example, drivers/acpi/bus.c contains this::
#define _COMPONENT ACPI_BUS_COMPONENT
...
@@ -127,22 +130,22 @@ statement uses ACPI_DB_INFO, which is macro based on the ACPI_LV_INFO
definition.)
Enable all AML "Debug" output (stores to the Debug object while interpreting
-AML) during boot:
+AML) during boot::
acpi.debug_layer=0xffffffff acpi.debug_level=0x2
-Enable PCI and PCI interrupt routing debug messages:
+Enable PCI and PCI interrupt routing debug messages::
acpi.debug_layer=0x400000 acpi.debug_level=0x4
-Enable all ACPI hardware-related messages:
+Enable all ACPI hardware-related messages::
acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
-Enable all ACPI_DB_INFO messages after boot:
+Enable all ACPI_DB_INFO messages after boot::
# echo 0x4 > /sys/module/acpi/parameters/debug_level
-Show all valid component values:
+Show all valid component values::
# cat /sys/module/acpi/parameters/debug_layer
diff --git a/Documentation/firmware-guide/acpi/index.rst b/Documentation/firmware-guide/acpi/index.rst
index 6d4e0df4f063..a45fea11f998 100644
--- a/Documentation/firmware-guide/acpi/index.rst
+++ b/Documentation/firmware-guide/acpi/index.rst
@@ -14,6 +14,7 @@ ACPI Support
osi
method-customizing
DSD-properties-rules
+ debug
gpio-properties
i2c-muxes
- acpi-lid
\ No newline at end of file
+ acpi-lid
--
2.20.1
next prev parent reply other threads:[~2019-04-25 15:31 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-25 15:30 [PATCH v6 00/24] Include linux ACPI docs into Sphinx TOC tree Changbin Du
2019-04-25 15:30 ` [PATCH v6 01/24] Documentation: add Linux ACPI to " Changbin Du
2019-04-25 15:30 ` [PATCH v6 02/24] Documentation: ACPI: move namespace.txt to firmware-guide/acpi and convert to reST Changbin Du
2019-04-25 15:30 ` [PATCH v6 03/24] Documentation: ACPI: move enumeration.txt " Changbin Du
2019-04-25 15:30 ` [PATCH v6 04/24] Documentation: ACPI: move osi.txt " Changbin Du
2019-04-25 15:30 ` [PATCH v6 05/24] Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi " Changbin Du
2019-04-25 15:30 ` [PATCH v6 06/24] Documentation: ACPI: move scan_handlers.txt " Changbin Du
2019-04-25 15:31 ` [PATCH v6 07/24] Documentation: ACPI: move DSD-properties-rules.txt to firmware-guide/acpi and covert " Changbin Du
2019-04-25 15:31 ` [PATCH v6 08/24] Documentation: ACPI: move gpio-properties.txt to firmware-guide/acpi and convert " Changbin Du
2019-04-25 15:31 ` [PATCH v6 09/24] Documentation: ACPI: move method-customizing.txt " Changbin Du
2019-04-25 15:31 ` [PATCH v6 10/24] Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi " Changbin Du
2019-04-25 15:31 ` [PATCH v6 11/24] Documentation: ACPI: move dsdt-override.txt " Changbin Du
2019-04-25 15:31 ` [PATCH v6 12/24] Documentation: ACPI: move i2c-muxes.txt to firmware-guide/acpi " Changbin Du
2019-04-25 15:31 ` [PATCH v6 13/24] Documentation: ACPI: move acpi-lid.txt " Changbin Du
2019-04-25 15:31 ` [PATCH v6 14/24] Documentation: ACPI: move dsd/graph.txt " Changbin Du
2019-04-25 15:31 ` [PATCH v6 15/24] Documentation: ACPI: move dsd/data-node-references.txt " Changbin Du
2019-04-25 15:31 ` Changbin Du [this message]
2019-04-25 15:31 ` [PATCH v6 17/24] Documentation: ACPI: move method-tracing.txt to firmware-guide/acpi and convert to rsST Changbin Du
2019-04-25 15:31 ` [PATCH v6 18/24] Documentation: ACPI: move aml-debugger.txt to firmware-guide/acpi and convert to reST Changbin Du
2019-04-25 15:31 ` [PATCH v6 19/24] Documentation: ACPI: move apei/output_format.txt " Changbin Du
2019-04-25 15:31 ` [PATCH v6 20/24] Documentation: ACPI: move apei/einj.txt " Changbin Du
2019-04-25 15:31 ` [PATCH v6 21/24] Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi " Changbin Du
2019-04-25 15:31 ` [PATCH v6 22/24] Documentation: ACPI: move lpit.txt to firmware-guide/acpi " Changbin Du
2019-04-25 15:31 ` [PATCH v6 23/24] Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi " Changbin Du
2019-04-25 15:31 ` [PATCH v6 24/24] Documentation: ACPI: move video_extension.txt to firmware-guide/acpi " Changbin Du
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