summaryrefslogtreecommitdiff
path: root/Documentation
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/gpio/index.rst1
-rw-r--r--Documentation/arm/marvell.rst2
-rw-r--r--Documentation/arm64/silicon-errata.rst12
-rw-r--r--Documentation/dev-tools/kselftest.rst8
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml1
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml12
-rw-r--r--Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml5
-rw-r--r--Documentation/index.rst1
-rw-r--r--Documentation/kernel-hacking/locking.rst2
-rw-r--r--Documentation/tools/index.rst20
-rw-r--r--Documentation/tools/rtla/index.rst26
-rw-r--r--Documentation/virt/kvm/api.rst4
-rw-r--r--Documentation/vm/page_table_check.rst2
13 files changed, 85 insertions, 11 deletions
diff --git a/Documentation/admin-guide/gpio/index.rst b/Documentation/admin-guide/gpio/index.rst
index 7db367572f30..f6861ca16ffe 100644
--- a/Documentation/admin-guide/gpio/index.rst
+++ b/Documentation/admin-guide/gpio/index.rst
@@ -10,6 +10,7 @@ gpio
gpio-aggregator
sysfs
gpio-mockup
+ gpio-sim
.. only:: subproject and html
diff --git a/Documentation/arm/marvell.rst b/Documentation/arm/marvell.rst
index 9485a5a2e2e9..2f41caa0096c 100644
--- a/Documentation/arm/marvell.rst
+++ b/Documentation/arm/marvell.rst
@@ -266,10 +266,12 @@ Avanta family
-------------
Flavors:
+ - 88F6500
- 88F6510
- 88F6530P
- 88F6550
- 88F6560
+ - 88F6601
Homepage:
https://web.archive.org/web/20181005145041/http://www.marvell.com/broadband/
diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
index 5342e895fb60..0ec7b7f1524b 100644
--- a/Documentation/arm64/silicon-errata.rst
+++ b/Documentation/arm64/silicon-errata.rst
@@ -52,6 +52,12 @@ stable kernels.
| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2064142 | ARM64_ERRATUM_2064142 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2038923 | ARM64_ERRATUM_2038923 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #1902691 | ARM64_ERRATUM_1902691 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A53 | #826319 | ARM64_ERRATUM_826319 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A53 | #827319 | ARM64_ERRATUM_827319 |
@@ -92,12 +98,18 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A77 | #1508412 | ARM64_ERRATUM_1508412 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2051678 | ARM64_ERRATUM_2051678 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2119858 | ARM64_ERRATUM_2119858 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X2 | #2119858 | ARM64_ERRATUM_2119858 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X2 | #2224489 | ARM64_ERRATUM_2224489 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1349291 | N/A |
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
index dcefee707ccd..a833ecf12fbc 100644
--- a/Documentation/dev-tools/kselftest.rst
+++ b/Documentation/dev-tools/kselftest.rst
@@ -7,6 +7,14 @@ directory. These are intended to be small tests to exercise individual code
paths in the kernel. Tests are intended to be run after building, installing
and booting a kernel.
+Kselftest from mainline can be run on older stable kernels. Running tests
+from mainline offers the best coverage. Several test rings run mainline
+kselftest suite on stable releases. The reason is that when a new test
+gets added to test existing code to regression test a bug, we should be
+able to run that test on an older kernel. Hence, it is important to keep
+code that can still test an older kernel and make sure it skips the test
+gracefully on newer releases.
+
You can find additional information on Kselftest framework, how to
write new tests using the framework on Kselftest wiki:
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml
index 79d0358e2f61..620f01775e42 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml
@@ -36,6 +36,7 @@ properties:
- renesas,intc-ex-r8a77980 # R-Car V3H
- renesas,intc-ex-r8a77990 # R-Car E3
- renesas,intc-ex-r8a77995 # R-Car D3
+ - renesas,intc-ex-r8a779a0 # R-Car V3U
- const: renesas,irqc
'#interrupt-cells':
diff --git a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
index 28b6b17fe4b2..0dfa6b26e099 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
@@ -62,6 +62,7 @@ properties:
interrupts-extended:
minItems: 1
+ maxItems: 15872
description:
Specifies which contexts are connected to the PLIC, with "-1" specifying
that a context is not present. Each node pointed to should be a
@@ -90,12 +91,11 @@ examples:
#interrupt-cells = <1>;
compatible = "sifive,fu540-c000-plic", "sifive,plic-1.0.0";
interrupt-controller;
- interrupts-extended = <
- &cpu0_intc 11
- &cpu1_intc 11 &cpu1_intc 9
- &cpu2_intc 11 &cpu2_intc 9
- &cpu3_intc 11 &cpu3_intc 9
- &cpu4_intc 11 &cpu4_intc 9>;
+ interrupts-extended = <&cpu0_intc 11>,
+ <&cpu1_intc 11>, <&cpu1_intc 9>,
+ <&cpu2_intc 11>, <&cpu2_intc 9>,
+ <&cpu3_intc 11>, <&cpu3_intc 9>,
+ <&cpu4_intc 11>, <&cpu4_intc 9>;
reg = <0xc000000 0x4000000>;
riscv,ndev = <10>;
};
diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
index 5dd209206e88..3ec2d7b83775 100644
--- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
@@ -23,8 +23,9 @@ properties:
minItems: 1
maxItems: 256
items:
- minimum: 0
- maximum: 256
+ items:
+ - minimum: 0
+ maximum: 256
description:
Chip select used by the device.
diff --git a/Documentation/index.rst b/Documentation/index.rst
index 2b4de3926858..b58692d687f6 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -166,6 +166,7 @@ to ReStructured Text format, or are simply too old.
.. toctree::
:maxdepth: 2
+ tools/index
staging/index
watch_queue
diff --git a/Documentation/kernel-hacking/locking.rst b/Documentation/kernel-hacking/locking.rst
index e6cd40663ea5..4cbd50edf277 100644
--- a/Documentation/kernel-hacking/locking.rst
+++ b/Documentation/kernel-hacking/locking.rst
@@ -295,7 +295,7 @@ Pete Zaitcev gives the following summary:
- If you are in a process context (any syscall) and want to lock other
process out, use a mutex. You can take a mutex and sleep
- (``copy_from_user*(`` or ``kmalloc(x,GFP_KERNEL)``).
+ (``copy_from_user()`` or ``kmalloc(x,GFP_KERNEL)``).
- Otherwise (== data can be touched in an interrupt), use
spin_lock_irqsave() and
diff --git a/Documentation/tools/index.rst b/Documentation/tools/index.rst
new file mode 100644
index 000000000000..0bb1e61bdcc0
--- /dev/null
+++ b/Documentation/tools/index.rst
@@ -0,0 +1,20 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+============
+Kernel tools
+============
+
+This book covers user-space tools that are shipped with the kernel source;
+more additions are needed here:
+
+.. toctree::
+ :maxdepth: 1
+
+ rtla/index
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/tools/rtla/index.rst b/Documentation/tools/rtla/index.rst
new file mode 100644
index 000000000000..840f0bf3e803
--- /dev/null
+++ b/Documentation/tools/rtla/index.rst
@@ -0,0 +1,26 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+================================
+The realtime Linux analysis tool
+================================
+
+RTLA provides a set of tools for the analysis of the kernel's realtime
+behavior on specific hardware.
+
+.. toctree::
+ :maxdepth: 1
+
+ rtla
+ rtla-osnoise
+ rtla-osnoise-hist
+ rtla-osnoise-top
+ rtla-timerlat
+ rtla-timerlat-hist
+ rtla-timerlat-top
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index bb8cfddbb22d..a4267104db50 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -3268,6 +3268,7 @@ number.
:Capability: KVM_CAP_DEVICE_CTRL, KVM_CAP_VM_ATTRIBUTES for vm device,
KVM_CAP_VCPU_ATTRIBUTES for vcpu device
+ KVM_CAP_SYS_ATTRIBUTES for system (/dev/kvm) device (no set)
:Type: device ioctl, vm ioctl, vcpu ioctl
:Parameters: struct kvm_device_attr
:Returns: 0 on success, -1 on error
@@ -3302,7 +3303,8 @@ transferred is defined by the particular attribute.
------------------------
:Capability: KVM_CAP_DEVICE_CTRL, KVM_CAP_VM_ATTRIBUTES for vm device,
- KVM_CAP_VCPU_ATTRIBUTES for vcpu device
+ KVM_CAP_VCPU_ATTRIBUTES for vcpu device
+ KVM_CAP_SYS_ATTRIBUTES for system (/dev/kvm) device
:Type: device ioctl, vm ioctl, vcpu ioctl
:Parameters: struct kvm_device_attr
:Returns: 0 on success, -1 on error
diff --git a/Documentation/vm/page_table_check.rst b/Documentation/vm/page_table_check.rst
index 81f521ff7ea7..1a09472f10a3 100644
--- a/Documentation/vm/page_table_check.rst
+++ b/Documentation/vm/page_table_check.rst
@@ -9,7 +9,7 @@ Page Table Check
Introduction
============
-Page table check allows to hardern the kernel by ensuring that some types of
+Page table check allows to harden the kernel by ensuring that some types of
the memory corruptions are prevented.
Page table check performs extra verifications at the time when new pages become