[PATCH 07/14] docs: add IRQ documentation at the core-api book
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: 2020-05-01 15:38:14
Also in:
linux-doc, lkml
Subsystem:
chinese documentation, documentation, irq domains (irq number mapping library), networking [general], the rest, x86 hardware vulnerabilities · Maintainers:
Alex Shi, Yanteng Si, Jonathan Corbet, Thomas Gleixner, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Borislav Petkov, Peter Zijlstra, Josh Poimboeuf
There are 4 IRQ documentation files under Documentation/*.txt.
Move them into a new directory (core-api/irq) and add a new
index file for it.
While here, use a title markup for the Debugging section of the
irq-domain.rst file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
Documentation/admin-guide/hw-vuln/l1tf.rst | 2 +-
Documentation/admin-guide/kernel-per-CPU-kthreads.rst | 2 +-
Documentation/core-api/index.rst | 1 +
Documentation/{IRQ.txt => core-api/irq/concepts.rst} | 0
Documentation/core-api/irq/index.rst | 11 +++++++++++
.../irq/irq-affinity.rst} | 0
.../{IRQ-domain.txt => core-api/irq/irq-domain.rst} | 3 ++-
.../irq/irqflags-tracing.rst} | 0
Documentation/ia64/irq-redir.rst | 2 +-
Documentation/networking/scaling.rst | 4 ++--
Documentation/translations/zh_CN/IRQ.txt | 4 ++--
MAINTAINERS | 2 +-
12 files changed, 22 insertions(+), 9 deletions(-)
rename Documentation/{IRQ.txt => core-api/irq/concepts.rst} (100%)
create mode 100644 Documentation/core-api/irq/index.rst
rename Documentation/{IRQ-affinity.txt => core-api/irq/irq-affinity.rst} (100%)
rename Documentation/{IRQ-domain.txt => core-api/irq/irq-domain.rst} (99%)
rename Documentation/{irqflags-tracing.txt => core-api/irq/irqflags-tracing.rst} (100%)
diff --git a/Documentation/admin-guide/hw-vuln/l1tf.rst b/Documentation/admin-guide/hw-vuln/l1tf.rst
index f83212fae4d5..3eeeb488d955 100644
--- a/Documentation/admin-guide/hw-vuln/l1tf.rst
+++ b/Documentation/admin-guide/hw-vuln/l1tf.rst@@ -268,7 +268,7 @@ Guest mitigation mechanisms /proc/irq/$NR/smp_affinity[_list] files. Limited documentation is available at: - https://www.kernel.org/doc/Documentation/IRQ-affinity.txt + https://www.kernel.org/doc/Documentation/core-api/irq/irq-affinity.rst .. _smt_control:
diff --git a/Documentation/admin-guide/kernel-per-CPU-kthreads.rst b/Documentation/admin-guide/kernel-per-CPU-kthreads.rst
index 21818aca4708..dc36aeb65d0a 100644
--- a/Documentation/admin-guide/kernel-per-CPU-kthreads.rst
+++ b/Documentation/admin-guide/kernel-per-CPU-kthreads.rst@@ -10,7 +10,7 @@ them to a "housekeeping" CPU dedicated to such work. References ========== -- Documentation/IRQ-affinity.txt: Binding interrupts to sets of CPUs. +- Documentation/core-api/irq/irq-affinity.rst: Binding interrupts to sets of CPUs. - Documentation/admin-guide/cgroup-v1: Using cgroups to bind tasks to sets of CPUs.
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index ab056b3626f4..49a885e83a55 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst@@ -52,6 +52,7 @@ How Linux keeps everything from happening at the same time. See atomic_ops refcount-vs-atomic + irq/index local_ops padata ../RCU/index
diff --git a/Documentation/IRQ.txt b/Documentation/core-api/irq/concepts.rst
similarity index 100%
rename from Documentation/IRQ.txt
rename to Documentation/core-api/irq/concepts.rst
diff --git a/Documentation/core-api/irq/index.rst b/Documentation/core-api/irq/index.rst
new file mode 100644
index 000000000000..0d65d11e5420
--- /dev/null
+++ b/Documentation/core-api/irq/index.rst@@ -0,0 +1,11 @@ +==== +IRQs +==== + +.. toctree:: + :maxdepth: 1 + + concepts + irq-affinity + irq-domain + irqflags-tracing
diff --git a/Documentation/IRQ-affinity.txt b/Documentation/core-api/irq/irq-affinity.rst
similarity index 100%
rename from Documentation/IRQ-affinity.txt
rename to Documentation/core-api/irq/irq-affinity.rst
diff --git a/Documentation/IRQ-domain.txt b/Documentation/core-api/irq/irq-domain.rst
similarity index 99%
rename from Documentation/IRQ-domain.txt
rename to Documentation/core-api/irq/irq-domain.rst
index 507775cce753..096db12f32d5 100644
--- a/Documentation/IRQ-domain.txt
+++ b/Documentation/core-api/irq/irq-domain.rst@@ -263,7 +263,8 @@ needs to: Hierarchy irq_domain is in no way x86 specific, and is heavily used to support other architectures, such as ARM, ARM64 etc. -=== Debugging === +Debugging +========= Most of the internals of the IRQ subsystem are exposed in debugfs by turning CONFIG_GENERIC_IRQ_DEBUGFS on.
diff --git a/Documentation/irqflags-tracing.txt b/Documentation/core-api/irq/irqflags-tracing.rst
similarity index 100%
rename from Documentation/irqflags-tracing.txt
rename to Documentation/core-api/irq/irqflags-tracing.rst
diff --git a/Documentation/ia64/irq-redir.rst b/Documentation/ia64/irq-redir.rst
index 39bf94484a15..6bbbbe4f73ef 100644
--- a/Documentation/ia64/irq-redir.rst
+++ b/Documentation/ia64/irq-redir.rst@@ -7,7 +7,7 @@ IRQ affinity on IA64 platforms By writing to /proc/irq/IRQ#/smp_affinity the interrupt routing can be controlled. The behavior on IA64 platforms is slightly different from -that described in Documentation/IRQ-affinity.txt for i386 systems. +that described in Documentation/core-api/irq/irq-affinity.rst for i386 systems. Because of the usage of SAPIC mode and physical destination mode the IRQ target is one particular CPU and cannot be a mask of several
diff --git a/Documentation/networking/scaling.rst b/Documentation/networking/scaling.rst
index f78d7bf27ff5..8f0347b9fb3d 100644
--- a/Documentation/networking/scaling.rst
+++ b/Documentation/networking/scaling.rst@@ -81,7 +81,7 @@ of queues to IRQs can be determined from /proc/interrupts. By default, an IRQ may be handled on any CPU. Because a non-negligible part of packet processing takes place in receive interrupt handling, it is advantageous to spread receive interrupts between CPUs. To manually adjust the IRQ -affinity of each interrupt see Documentation/IRQ-affinity.txt. Some systems +affinity of each interrupt see Documentation/core-api/irq/irq-affinity.rst. Some systems will be running irqbalance, a daemon that dynamically optimizes IRQ assignments and as a result may override any manual settings.
@@ -160,7 +160,7 @@ can be configured for each receive queue using a sysfs file entry:: This file implements a bitmap of CPUs. RPS is disabled when it is zero (the default), in which case packets are processed on the interrupting -CPU. Documentation/IRQ-affinity.txt explains how CPUs are assigned to +CPU. Documentation/core-api/irq/irq-affinity.rst explains how CPUs are assigned to the bitmap.
diff --git a/Documentation/translations/zh_CN/IRQ.txt b/Documentation/translations/zh_CN/IRQ.txt
index 956026d5cf82..9aec8dca4fcf 100644
--- a/Documentation/translations/zh_CN/IRQ.txt
+++ b/Documentation/translations/zh_CN/IRQ.txt@@ -1,4 +1,4 @@ -Chinese translated version of Documentation/IRQ.txt +Chinese translated version of Documentation/core-api/irq/index.rst If you have any comment or update to the content, please contact the original document maintainer directly. However, if you have a problem
@@ -9,7 +9,7 @@ or if there is a problem with the translation. Maintainer: Eric W. Biederman <ebiederman@xmission.com> Chinese maintainer: Fu Wei <tekkamanninja@gmail.com> --------------------------------------------------------------------- -Documentation/IRQ.txt 的中文翻译 +Documentation/core-api/irq/index.rst 的中文翻译 如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻
diff --git a/MAINTAINERS b/MAINTAINERS
index a1d7af532950..6eb3d85a646f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -8974,7 +8974,7 @@ IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY) M: Marc Zyngier <maz@kernel.org> S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core -F: Documentation/IRQ-domain.txt +F: Documentation/core-api/irq/irq-domain.rst F: include/linux/irqdomain.h F: kernel/irq/irqdomain.c F: kernel/irq/msi.c
--
2.25.4