mirror of https://gitee.com/openkylin/linux.git
Merge branch 'icc-sdx55' into icc-next
Add interconnect driver support for SDX55 platform for scaling the bandwidth requirements over RPMh. * icc-sdx55 dt-bindings: interconnect: Add Qualcomm SDX55 DT bindings interconnect: qcom: Add SDX55 interconnect provider driver Link: https://lore.kernel.org/r/20210121053254.8355-1-manivannan.sadhasivam@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
This commit is contained in:
Georgi Djakov
commit
6715ea06ce
|
|
@ -473,7 +473,7 @@ read-side critical sections that follow the idle period (the oval near
|
|||
the bottom of the diagram above).
|
||||
|
||||
Plumbing this into the full grace-period execution is described
|
||||
`below <#Forcing%20Quiescent%20States>`__.
|
||||
`below <Forcing Quiescent States_>`__.
|
||||
|
||||
CPU-Hotplug Interface
|
||||
^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
@ -494,7 +494,7 @@ mask to detect CPUs having gone offline since the beginning of this
|
|||
grace period.
|
||||
|
||||
Plumbing this into the full grace-period execution is described
|
||||
`below <#Forcing%20Quiescent%20States>`__.
|
||||
`below <Forcing Quiescent States_>`__.
|
||||
|
||||
Forcing Quiescent States
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
@ -532,7 +532,7 @@ from other CPUs.
|
|||
| RCU. But this diagram is complex enough as it is, so simplicity |
|
||||
| overrode accuracy. You can think of it as poetic license, or you can |
|
||||
| think of it as misdirection that is resolved in the |
|
||||
| `stitched-together diagram <#Putting%20It%20All%20Together>`__. |
|
||||
| `stitched-together diagram <Putting It All Together_>`__. |
|
||||
+-----------------------------------------------------------------------+
|
||||
|
||||
Grace-Period Cleanup
|
||||
|
|
@ -596,7 +596,7 @@ maintain ordering. For example, if the callback function wakes up a task
|
|||
that runs on some other CPU, proper ordering must in place in both the
|
||||
callback function and the task being awakened. To see why this is
|
||||
important, consider the top half of the `grace-period
|
||||
cleanup <#Grace-Period%20Cleanup>`__ diagram. The callback might be
|
||||
cleanup`_ diagram. The callback might be
|
||||
running on a CPU corresponding to the leftmost leaf ``rcu_node``
|
||||
structure, and awaken a task that is to run on a CPU corresponding to
|
||||
the rightmost leaf ``rcu_node`` structure, and the grace-period kernel
|
||||
|
|
|
|||
|
|
@ -45,7 +45,7 @@ requirements:
|
|||
#. `Other RCU Flavors`_
|
||||
#. `Possible Future Changes`_
|
||||
|
||||
This is followed by a `summary <#Summary>`__, however, the answers to
|
||||
This is followed by a summary_, however, the answers to
|
||||
each quick quiz immediately follows the quiz. Select the big white space
|
||||
with your mouse to see the answer.
|
||||
|
||||
|
|
@ -1096,7 +1096,7 @@ memory barriers.
|
|||
| case, voluntary context switch) within an RCU read-side critical |
|
||||
| section. However, sleeping locks may be used within userspace RCU |
|
||||
| read-side critical sections, and also within Linux-kernel sleepable |
|
||||
| RCU `(SRCU) <#Sleepable%20RCU>`__ read-side critical sections. In |
|
||||
| RCU `(SRCU) <Sleepable RCU_>`__ read-side critical sections. In |
|
||||
| addition, the -rt patchset turns spinlocks into a sleeping locks so |
|
||||
| that the corresponding critical sections can be preempted, which also |
|
||||
| means that these sleeplockified spinlocks (but not other sleeping |
|
||||
|
|
@ -1186,7 +1186,7 @@ non-preemptible (``CONFIG_PREEMPT=n``) kernels, and thus `tiny
|
|||
RCU <https://lkml.kernel.org/g/20090113221724.GA15307@linux.vnet.ibm.com>`__
|
||||
was born. Josh Triplett has since taken over the small-memory banner
|
||||
with his `Linux kernel tinification <https://tiny.wiki.kernel.org/>`__
|
||||
project, which resulted in `SRCU <#Sleepable%20RCU>`__ becoming optional
|
||||
project, which resulted in `SRCU <Sleepable RCU_>`__ becoming optional
|
||||
for those kernels not needing it.
|
||||
|
||||
The remaining performance requirements are, for the most part,
|
||||
|
|
@ -1457,8 +1457,8 @@ will vary as the value of ``HZ`` varies, and can also be changed using
|
|||
the relevant Kconfig options and kernel boot parameters. RCU currently
|
||||
does not do much sanity checking of these parameters, so please use
|
||||
caution when changing them. Note that these forward-progress measures
|
||||
are provided only for RCU, not for `SRCU <#Sleepable%20RCU>`__ or `Tasks
|
||||
RCU <#Tasks%20RCU>`__.
|
||||
are provided only for RCU, not for `SRCU <Sleepable RCU_>`__ or `Tasks
|
||||
RCU`_.
|
||||
|
||||
RCU takes the following steps in ``call_rcu()`` to encourage timely
|
||||
invocation of callbacks when any given non-\ ``rcu_nocbs`` CPU has
|
||||
|
|
@ -1477,8 +1477,8 @@ encouragement was provided:
|
|||
|
||||
Again, these are default values when running at ``HZ=1000``, and can be
|
||||
overridden. Again, these forward-progress measures are provided only for
|
||||
RCU, not for `SRCU <#Sleepable%20RCU>`__ or `Tasks
|
||||
RCU <#Tasks%20RCU>`__. Even for RCU, callback-invocation forward
|
||||
RCU, not for `SRCU <Sleepable RCU_>`__ or `Tasks
|
||||
RCU`_. Even for RCU, callback-invocation forward
|
||||
progress for ``rcu_nocbs`` CPUs is much less well-developed, in part
|
||||
because workloads benefiting from ``rcu_nocbs`` CPUs tend to invoke
|
||||
``call_rcu()`` relatively infrequently. If workloads emerge that need
|
||||
|
|
@ -1920,7 +1920,7 @@ Hotplug CPU
|
|||
|
||||
The Linux kernel supports CPU hotplug, which means that CPUs can come
|
||||
and go. It is of course illegal to use any RCU API member from an
|
||||
offline CPU, with the exception of `SRCU <#Sleepable%20RCU>`__ read-side
|
||||
offline CPU, with the exception of `SRCU <Sleepable RCU_>`__ read-side
|
||||
critical sections. This requirement was present from day one in
|
||||
DYNIX/ptx, but on the other hand, the Linux kernel's CPU-hotplug
|
||||
implementation is “interesting.”
|
||||
|
|
@ -2177,7 +2177,7 @@ handles these states differently:
|
|||
However, RCU must be reliably informed as to whether any given CPU is
|
||||
currently in the idle loop, and, for ``NO_HZ_FULL``, also whether that
|
||||
CPU is executing in usermode, as discussed
|
||||
`earlier <#Energy%20Efficiency>`__. It also requires that the
|
||||
`earlier <Energy Efficiency_>`__. It also requires that the
|
||||
scheduling-clock interrupt be enabled when RCU needs it to be:
|
||||
|
||||
#. If a CPU is either idle or executing in usermode, and RCU believes it
|
||||
|
|
@ -2294,7 +2294,7 @@ Performance, Scalability, Response Time, and Reliability
|
|||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
Expanding on the `earlier
|
||||
discussion <#Performance%20and%20Scalability>`__, RCU is used heavily by
|
||||
discussion <Performance and Scalability_>`__, RCU is used heavily by
|
||||
hot code paths in performance-critical portions of the Linux kernel's
|
||||
networking, security, virtualization, and scheduling code paths. RCU
|
||||
must therefore use efficient implementations, especially in its
|
||||
|
|
|
|||
|
|
@ -23,7 +23,7 @@ Here is what the fields mean:
|
|||
|
||||
- ``name``
|
||||
is an identifier string. A new /proc file will be created with this
|
||||
``name below /proc/sys/fs/binfmt_misc``; cannot contain slashes ``/`` for
|
||||
name below ``/proc/sys/fs/binfmt_misc``; cannot contain slashes ``/`` for
|
||||
obvious reasons.
|
||||
- ``type``
|
||||
is the type of recognition. Give ``M`` for magic and ``E`` for extension.
|
||||
|
|
@ -83,7 +83,7 @@ Here is what the fields mean:
|
|||
``F`` - fix binary
|
||||
The usual behaviour of binfmt_misc is to spawn the
|
||||
binary lazily when the misc format file is invoked. However,
|
||||
this doesn``t work very well in the face of mount namespaces and
|
||||
this doesn't work very well in the face of mount namespaces and
|
||||
changeroots, so the ``F`` mode opens the binary as soon as the
|
||||
emulation is installed and uses the opened image to spawn the
|
||||
emulator, meaning it is always available once installed,
|
||||
|
|
|
|||
|
|
@ -154,7 +154,7 @@ get the boot configuration data.
|
|||
Because of this "piggyback" method, there is no need to change or
|
||||
update the boot loader and the kernel image itself as long as the boot
|
||||
loader passes the correct initrd file size. If by any chance, the boot
|
||||
loader passes a longer size, the kernel feils to find the bootconfig data.
|
||||
loader passes a longer size, the kernel fails to find the bootconfig data.
|
||||
|
||||
To do this operation, Linux kernel provides "bootconfig" command under
|
||||
tools/bootconfig, which allows admin to apply or delete the config file
|
||||
|
|
|
|||
|
|
@ -3,8 +3,8 @@
|
|||
The kernel's command-line parameters
|
||||
====================================
|
||||
|
||||
The following is a consolidated list of the kernel parameters as
|
||||
implemented by the __setup(), core_param() and module_param() macros
|
||||
The following is a consolidated list of the kernel parameters as implemented
|
||||
by the __setup(), early_param(), core_param() and module_param() macros
|
||||
and sorted into English Dictionary order (defined as ignoring all
|
||||
punctuation and sorting digits before letters in a case insensitive
|
||||
manner), and with descriptions where known.
|
||||
|
|
|
|||
|
|
@ -1385,7 +1385,7 @@
|
|||
|
||||
ftrace_filter=[function-list]
|
||||
[FTRACE] Limit the functions traced by the function
|
||||
tracer at boot up. function-list is a comma separated
|
||||
tracer at boot up. function-list is a comma-separated
|
||||
list of functions. This list can be changed at run
|
||||
time by the set_ftrace_filter file in the debugfs
|
||||
tracing directory.
|
||||
|
|
@ -1399,13 +1399,13 @@
|
|||
ftrace_graph_filter=[function-list]
|
||||
[FTRACE] Limit the top level callers functions traced
|
||||
by the function graph tracer at boot up.
|
||||
function-list is a comma separated list of functions
|
||||
function-list is a comma-separated list of functions
|
||||
that can be changed at run time by the
|
||||
set_graph_function file in the debugfs tracing directory.
|
||||
|
||||
ftrace_graph_notrace=[function-list]
|
||||
[FTRACE] Do not trace from the functions specified in
|
||||
function-list. This list is a comma separated list of
|
||||
function-list. This list is a comma-separated list of
|
||||
functions that can be changed at run time by the
|
||||
set_graph_notrace file in the debugfs tracing directory.
|
||||
|
||||
|
|
@ -2421,7 +2421,7 @@
|
|||
when set.
|
||||
Format: <int>
|
||||
|
||||
libata.force= [LIBATA] Force configurations. The format is comma
|
||||
libata.force= [LIBATA] Force configurations. The format is comma-
|
||||
separated list of "[ID:]VAL" where ID is
|
||||
PORT[.DEVICE]. PORT and DEVICE are decimal numbers
|
||||
matching port, link or device. Basically, it matches
|
||||
|
|
@ -5145,7 +5145,7 @@
|
|||
|
||||
stacktrace_filter=[function-list]
|
||||
[FTRACE] Limit the functions that the stack tracer
|
||||
will trace at boot up. function-list is a comma separated
|
||||
will trace at boot up. function-list is a comma-separated
|
||||
list of functions. This list can be changed at run
|
||||
time by the stack_trace_filter file in the debugfs
|
||||
tracing directory. Note, this enables stack tracing
|
||||
|
|
@ -5348,7 +5348,7 @@
|
|||
trace_event=[event-list]
|
||||
[FTRACE] Set and start specified trace events in order
|
||||
to facilitate early boot debugging. The event-list is a
|
||||
comma separated list of trace events to enable. See
|
||||
comma-separated list of trace events to enable. See
|
||||
also Documentation/trace/events.rst
|
||||
|
||||
trace_options=[option-list]
|
||||
|
|
|
|||
|
|
@ -184,7 +184,7 @@ pages either asynchronously or synchronously, depending on the state
|
|||
of the system. When the system is not loaded, most of the memory is free
|
||||
and allocation requests will be satisfied immediately from the free
|
||||
pages supply. As the load increases, the amount of the free pages goes
|
||||
down and when it reaches a certain threshold (high watermark), an
|
||||
down and when it reaches a certain threshold (low watermark), an
|
||||
allocation request will awaken the ``kswapd`` daemon. It will
|
||||
asynchronously scan memory pages and either just free them if the data
|
||||
they contain is available elsewhere, or evict to the backing storage
|
||||
|
|
|
|||
|
|
@ -53,7 +53,6 @@ How Linux keeps everything from happening at the same time. See
|
|||
.. toctree::
|
||||
:maxdepth: 1
|
||||
|
||||
atomic_ops
|
||||
refcount-vs-atomic
|
||||
irq/index
|
||||
local_ops
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
# Copyright (C) 2020 Texas Instruments Incorporated
|
||||
# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/dma/ti/k3-bcdma.yaml#
|
||||
|
|
@ -7,7 +9,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
|
|||
title: Texas Instruments K3 DMSS BCDMA Device Tree Bindings
|
||||
|
||||
maintainers:
|
||||
- Peter Ujfalusi <peter.ujfalusi@ti.com>
|
||||
- Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
||||
|
||||
description: |
|
||||
The Block Copy DMA (BCDMA) is intended to perform similar functions as the TR
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
# Copyright (C) 2020 Texas Instruments Incorporated
|
||||
# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/dma/ti/k3-pktdma.yaml#
|
||||
|
|
@ -7,7 +9,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
|
|||
title: Texas Instruments K3 DMSS PKTDMA Device Tree Bindings
|
||||
|
||||
maintainers:
|
||||
- Peter Ujfalusi <peter.ujfalusi@ti.com>
|
||||
- Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
||||
|
||||
description: |
|
||||
The Packet DMA (PKTDMA) is intended to perform similar functions as the packet
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
# Copyright (C) 2019 Texas Instruments Incorporated
|
||||
# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/dma/ti/k3-udma.yaml#
|
||||
|
|
@ -7,7 +9,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
|
|||
title: Texas Instruments K3 NAVSS Unified DMA Device Tree Bindings
|
||||
|
||||
maintainers:
|
||||
- Peter Ujfalusi <peter.ujfalusi@ti.com>
|
||||
- Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
||||
|
||||
description: |
|
||||
The UDMA-P is intended to perform similar (but significantly upgraded)
|
||||
|
|
|
|||
|
|
@ -45,6 +45,10 @@ properties:
|
|||
- qcom,sdm845-mem-noc
|
||||
- qcom,sdm845-mmss-noc
|
||||
- qcom,sdm845-system-noc
|
||||
- qcom,sdx55-ipa-virt
|
||||
- qcom,sdx55-mc-virt
|
||||
- qcom,sdx55-mem-noc
|
||||
- qcom,sdx55-system-noc
|
||||
- qcom,sm8150-aggre1-noc
|
||||
- qcom,sm8150-aggre2-noc
|
||||
- qcom,sm8150-camnoc-noc
|
||||
|
|
|
|||
|
|
@ -19,7 +19,9 @@ description: |
|
|||
properties:
|
||||
compatible:
|
||||
enum:
|
||||
- nxp,pf8x00
|
||||
- nxp,pf8100
|
||||
- nxp,pf8121a
|
||||
- nxp,pf8200
|
||||
|
||||
reg:
|
||||
maxItems: 1
|
||||
|
|
@ -118,7 +120,7 @@ examples:
|
|||
#size-cells = <0>;
|
||||
|
||||
pmic@8 {
|
||||
compatible = "nxp,pf8x00";
|
||||
compatible = "nxp,pf8100";
|
||||
reg = <0x08>;
|
||||
|
||||
regulators {
|
||||
|
|
|
|||
|
|
@ -44,6 +44,7 @@ First Level Nodes - PMIC
|
|||
Definition: Must be one of below:
|
||||
"qcom,pm8005-rpmh-regulators"
|
||||
"qcom,pm8009-rpmh-regulators"
|
||||
"qcom,pm8009-1-rpmh-regulators"
|
||||
"qcom,pm8150-rpmh-regulators"
|
||||
"qcom,pm8150l-rpmh-regulators"
|
||||
"qcom,pm8350-rpmh-regulators"
|
||||
|
|
|
|||
|
|
@ -11,8 +11,12 @@ maintainers:
|
|||
|
||||
properties:
|
||||
compatible:
|
||||
items:
|
||||
oneOf:
|
||||
- const: ti,j721e-usb
|
||||
- const: ti,am64-usb
|
||||
- items:
|
||||
- const: ti,j721e-usb
|
||||
- const: ti,am64-usb
|
||||
|
||||
reg:
|
||||
description: module registers
|
||||
|
|
|
|||
|
|
@ -48,12 +48,12 @@ or ``virtualenv``, depending on how your distribution packaged Python 3.
|
|||
those versions, you should run ``pip install 'docutils==0.12'``.
|
||||
|
||||
#) It is recommended to use the RTD theme for html output. Depending
|
||||
on the Sphinx version, it should be installed in separate,
|
||||
on the Sphinx version, it should be installed separately,
|
||||
with ``pip install sphinx_rtd_theme``.
|
||||
|
||||
#) Some ReST pages contain math expressions. Due to the way Sphinx work,
|
||||
#) Some ReST pages contain math expressions. Due to the way Sphinx works,
|
||||
those expressions are written using LaTeX notation. It needs texlive
|
||||
installed with amdfonts and amsmath in order to evaluate them.
|
||||
installed with amsfonts and amsmath in order to evaluate them.
|
||||
|
||||
In summary, if you want to install Sphinx version 1.7.9, you should do::
|
||||
|
||||
|
|
@ -128,7 +128,7 @@ Sphinx Build
|
|||
============
|
||||
|
||||
The usual way to generate the documentation is to run ``make htmldocs`` or
|
||||
``make pdfdocs``. There are also other formats available, see the documentation
|
||||
``make pdfdocs``. There are also other formats available: see the documentation
|
||||
section of ``make help``. The generated documentation is placed in
|
||||
format-specific subdirectories under ``Documentation/output``.
|
||||
|
||||
|
|
@ -303,17 +303,17 @@ and *targets* (e.g. a ref to ``:ref:`last row <last row>``` / :ref:`last row
|
|||
- head col 3
|
||||
- head col 4
|
||||
|
||||
* - column 1
|
||||
* - row 1
|
||||
- field 1.1
|
||||
- field 1.2 with autospan
|
||||
|
||||
* - column 2
|
||||
* - row 2
|
||||
- field 2.1
|
||||
- :rspan:`1` :cspan:`1` field 2.2 - 3.3
|
||||
|
||||
* .. _`last row`:
|
||||
|
||||
- column 3
|
||||
- row 3
|
||||
|
||||
Rendered as:
|
||||
|
||||
|
|
@ -325,17 +325,17 @@ Rendered as:
|
|||
- head col 3
|
||||
- head col 4
|
||||
|
||||
* - column 1
|
||||
* - row 1
|
||||
- field 1.1
|
||||
- field 1.2 with autospan
|
||||
|
||||
* - column 2
|
||||
* - row 2
|
||||
- field 2.1
|
||||
- :rspan:`1` :cspan:`1` field 2.2 - 3.3
|
||||
|
||||
* .. _`last row`:
|
||||
|
||||
- column 3
|
||||
- row 3
|
||||
|
||||
Cross-referencing
|
||||
-----------------
|
||||
|
|
@ -361,7 +361,7 @@ Figures & Images
|
|||
|
||||
If you want to add an image, you should use the ``kernel-figure`` and
|
||||
``kernel-image`` directives. E.g. to insert a figure with a scalable
|
||||
image format use SVG (:ref:`svg_image_example`)::
|
||||
image format, use SVG (:ref:`svg_image_example`)::
|
||||
|
||||
.. kernel-figure:: svg_image.svg
|
||||
:alt: simple SVG image
|
||||
|
|
@ -375,7 +375,7 @@ image format use SVG (:ref:`svg_image_example`)::
|
|||
|
||||
SVG image example
|
||||
|
||||
The kernel figure (and image) directive support **DOT** formatted files, see
|
||||
The kernel figure (and image) directive supports **DOT** formatted files, see
|
||||
|
||||
* DOT: http://graphviz.org/pdf/dotguide.pdf
|
||||
* Graphviz: http://www.graphviz.org/content/dot-language
|
||||
|
|
@ -394,7 +394,7 @@ A simple example (:ref:`hello_dot_file`)::
|
|||
|
||||
DOT's hello world example
|
||||
|
||||
Embed *render* markups (or languages) like Graphviz's **DOT** is provided by the
|
||||
Embedded *render* markups (or languages) like Graphviz's **DOT** are provided by the
|
||||
``kernel-render`` directives.::
|
||||
|
||||
.. kernel-render:: DOT
|
||||
|
|
@ -406,7 +406,7 @@ Embed *render* markups (or languages) like Graphviz's **DOT** is provided by the
|
|||
}
|
||||
|
||||
How this will be rendered depends on the installed tools. If Graphviz is
|
||||
installed, you will see an vector image. If not the raw markup is inserted as
|
||||
installed, you will see a vector image. If not, the raw markup is inserted as
|
||||
*literal-block* (:ref:`hello_dot_render`).
|
||||
|
||||
.. _hello_dot_render:
|
||||
|
|
@ -421,8 +421,8 @@ installed, you will see an vector image. If not the raw markup is inserted as
|
|||
|
||||
The *render* directive has all the options known from the *figure* directive,
|
||||
plus option ``caption``. If ``caption`` has a value, a *figure* node is
|
||||
inserted. If not, a *image* node is inserted. A ``caption`` is also needed, if
|
||||
you want to refer it (:ref:`hello_svg_render`).
|
||||
inserted. If not, an *image* node is inserted. A ``caption`` is also needed, if
|
||||
you want to refer to it (:ref:`hello_svg_render`).
|
||||
|
||||
Embedded **SVG**::
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
.. SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
Kernel driver sbtsi_temp
|
||||
==================
|
||||
========================
|
||||
|
||||
Supported hardware:
|
||||
|
||||
|
|
|
|||
|
|
@ -598,7 +598,7 @@ more details, with real examples.
|
|||
explicitly added to $(targets).
|
||||
|
||||
Assignments to $(targets) are without $(obj)/ prefix. if_changed may be
|
||||
used in conjunction with custom rules as defined in "3.9 Custom Rules".
|
||||
used in conjunction with custom rules as defined in "3.11 Custom Rules".
|
||||
|
||||
Note: It is a typical mistake to forget the FORCE prerequisite.
|
||||
Another common pitfall is that whitespace is sometimes significant; for
|
||||
|
|
|
|||
|
|
@ -118,11 +118,11 @@ spinlock, but you may block holding a mutex. If you can't lock a mutex,
|
|||
your task will suspend itself, and be woken up when the mutex is
|
||||
released. This means the CPU can do something else while you are
|
||||
waiting. There are many cases when you simply can't sleep (see
|
||||
`What Functions Are Safe To Call From Interrupts? <#sleeping-things>`__),
|
||||
`What Functions Are Safe To Call From Interrupts?`_),
|
||||
and so have to use a spinlock instead.
|
||||
|
||||
Neither type of lock is recursive: see
|
||||
`Deadlock: Simple and Advanced <#deadlock>`__.
|
||||
`Deadlock: Simple and Advanced`_.
|
||||
|
||||
Locks and Uniprocessor Kernels
|
||||
------------------------------
|
||||
|
|
@ -179,7 +179,7 @@ perfect world).
|
|||
|
||||
Note that you can also use spin_lock_irq() or
|
||||
spin_lock_irqsave() here, which stop hardware interrupts
|
||||
as well: see `Hard IRQ Context <#hard-irq-context>`__.
|
||||
as well: see `Hard IRQ Context`_.
|
||||
|
||||
This works perfectly for UP as well: the spin lock vanishes, and this
|
||||
macro simply becomes local_bh_disable()
|
||||
|
|
@ -230,7 +230,7 @@ The Same Softirq
|
|||
~~~~~~~~~~~~~~~~
|
||||
|
||||
The same softirq can run on the other CPUs: you can use a per-CPU array
|
||||
(see `Per-CPU Data <#per-cpu-data>`__) for better performance. If you're
|
||||
(see `Per-CPU Data`_) for better performance. If you're
|
||||
going so far as to use a softirq, you probably care about scalable
|
||||
performance enough to justify the extra complexity.
|
||||
|
||||
|
|
|
|||
|
|
@ -164,46 +164,56 @@ Devlink health reporters
|
|||
|
||||
NPA Reporters
|
||||
-------------
|
||||
The NPA reporters are responsible for reporting and recovering the following group of errors
|
||||
The NPA reporters are responsible for reporting and recovering the following group of errors:
|
||||
|
||||
1. GENERAL events
|
||||
|
||||
- Error due to operation of unmapped PF.
|
||||
- Error due to disabled alloc/free for other HW blocks (NIX, SSO, TIM, DPI and AURA).
|
||||
|
||||
2. ERROR events
|
||||
|
||||
- Fault due to NPA_AQ_INST_S read or NPA_AQ_RES_S write.
|
||||
- AQ Doorbell Error.
|
||||
|
||||
3. RAS events
|
||||
|
||||
- RAS Error Reporting for NPA_AQ_INST_S/NPA_AQ_RES_S.
|
||||
|
||||
4. RVU events
|
||||
|
||||
- Error due to unmapped slot.
|
||||
|
||||
Sample Output
|
||||
-------------
|
||||
~# devlink health
|
||||
pci/0002:01:00.0:
|
||||
reporter hw_npa_intr
|
||||
state healthy error 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true
|
||||
reporter hw_npa_gen
|
||||
state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true
|
||||
reporter hw_npa_err
|
||||
state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true
|
||||
reporter hw_npa_ras
|
||||
state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true
|
||||
Sample Output::
|
||||
|
||||
~# devlink health
|
||||
pci/0002:01:00.0:
|
||||
reporter hw_npa_intr
|
||||
state healthy error 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true
|
||||
reporter hw_npa_gen
|
||||
state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true
|
||||
reporter hw_npa_err
|
||||
state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true
|
||||
reporter hw_npa_ras
|
||||
state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true
|
||||
|
||||
Each reporter dumps the
|
||||
|
||||
- Error Type
|
||||
- Error Register value
|
||||
- Reason in words
|
||||
|
||||
For eg:
|
||||
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen
|
||||
NPA_AF_GENERAL:
|
||||
NPA General Interrupt Reg : 1
|
||||
NIX0: free disabled RX
|
||||
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr
|
||||
NPA_AF_RVU:
|
||||
NPA RVU Interrupt Reg : 1
|
||||
Unmap Slot Error
|
||||
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err
|
||||
NPA_AF_ERR:
|
||||
NPA Error Interrupt Reg : 4096
|
||||
AQ Doorbell Error
|
||||
For example::
|
||||
|
||||
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen
|
||||
NPA_AF_GENERAL:
|
||||
NPA General Interrupt Reg : 1
|
||||
NIX0: free disabled RX
|
||||
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr
|
||||
NPA_AF_RVU:
|
||||
NPA RVU Interrupt Reg : 1
|
||||
Unmap Slot Error
|
||||
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err
|
||||
NPA_AF_ERR:
|
||||
NPA Error Interrupt Reg : 4096
|
||||
AQ Doorbell Error
|
||||
|
|
|
|||
|
|
@ -6,9 +6,9 @@
|
|||
netdev FAQ
|
||||
==========
|
||||
|
||||
Q: What is netdev?
|
||||
------------------
|
||||
A: It is a mailing list for all network-related Linux stuff. This
|
||||
What is netdev?
|
||||
---------------
|
||||
It is a mailing list for all network-related Linux stuff. This
|
||||
includes anything found under net/ (i.e. core code like IPv6) and
|
||||
drivers/net (i.e. hardware specific drivers) in the Linux source tree.
|
||||
|
||||
|
|
@ -25,9 +25,9 @@ Aside from subsystems like that mentioned above, all network-related
|
|||
Linux development (i.e. RFC, review, comments, etc.) takes place on
|
||||
netdev.
|
||||
|
||||
Q: How do the changes posted to netdev make their way into Linux?
|
||||
-----------------------------------------------------------------
|
||||
A: There are always two trees (git repositories) in play. Both are
|
||||
How do the changes posted to netdev make their way into Linux?
|
||||
--------------------------------------------------------------
|
||||
There are always two trees (git repositories) in play. Both are
|
||||
driven by David Miller, the main network maintainer. There is the
|
||||
``net`` tree, and the ``net-next`` tree. As you can probably guess from
|
||||
the names, the ``net`` tree is for fixes to existing code already in the
|
||||
|
|
@ -37,9 +37,9 @@ for the future release. You can find the trees here:
|
|||
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
|
||||
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
|
||||
|
||||
Q: How often do changes from these trees make it to the mainline Linus tree?
|
||||
----------------------------------------------------------------------------
|
||||
A: To understand this, you need to know a bit of background information on
|
||||
How often do changes from these trees make it to the mainline Linus tree?
|
||||
-------------------------------------------------------------------------
|
||||
To understand this, you need to know a bit of background information on
|
||||
the cadence of Linux development. Each new release starts off with a
|
||||
two week "merge window" where the main maintainers feed their new stuff
|
||||
to Linus for merging into the mainline tree. After the two weeks, the
|
||||
|
|
@ -81,7 +81,8 @@ focus for ``net`` is on stabilization and bug fixes.
|
|||
|
||||
Finally, the vX.Y gets released, and the whole cycle starts over.
|
||||
|
||||
Q: So where are we now in this cycle?
|
||||
So where are we now in this cycle?
|
||||
----------------------------------
|
||||
|
||||
Load the mainline (Linus) page here:
|
||||
|
||||
|
|
@ -91,9 +92,9 @@ and note the top of the "tags" section. If it is rc1, it is early in
|
|||
the dev cycle. If it was tagged rc7 a week ago, then a release is
|
||||
probably imminent.
|
||||
|
||||
Q: How do I indicate which tree (net vs. net-next) my patch should be in?
|
||||
-------------------------------------------------------------------------
|
||||
A: Firstly, think whether you have a bug fix or new "next-like" content.
|
||||
How do I indicate which tree (net vs. net-next) my patch should be in?
|
||||
----------------------------------------------------------------------
|
||||
Firstly, think whether you have a bug fix or new "next-like" content.
|
||||
Then once decided, assuming that you use git, use the prefix flag, i.e.
|
||||
::
|
||||
|
||||
|
|
@ -105,48 +106,45 @@ in the above is just the subject text of the outgoing e-mail, and you
|
|||
can manually change it yourself with whatever MUA you are comfortable
|
||||
with.
|
||||
|
||||
Q: I sent a patch and I'm wondering what happened to it?
|
||||
--------------------------------------------------------
|
||||
Q: How can I tell whether it got merged?
|
||||
A: Start by looking at the main patchworks queue for netdev:
|
||||
I sent a patch and I'm wondering what happened to it - how can I tell whether it got merged?
|
||||
--------------------------------------------------------------------------------------------
|
||||
Start by looking at the main patchworks queue for netdev:
|
||||
|
||||
https://patchwork.kernel.org/project/netdevbpf/list/
|
||||
|
||||
The "State" field will tell you exactly where things are at with your
|
||||
patch.
|
||||
|
||||
Q: The above only says "Under Review". How can I find out more?
|
||||
----------------------------------------------------------------
|
||||
A: Generally speaking, the patches get triaged quickly (in less than
|
||||
The above only says "Under Review". How can I find out more?
|
||||
-------------------------------------------------------------
|
||||
Generally speaking, the patches get triaged quickly (in less than
|
||||
48h). So be patient. Asking the maintainer for status updates on your
|
||||
patch is a good way to ensure your patch is ignored or pushed to the
|
||||
bottom of the priority list.
|
||||
|
||||
Q: I submitted multiple versions of the patch series
|
||||
----------------------------------------------------
|
||||
Q: should I directly update patchwork for the previous versions of these
|
||||
patch series?
|
||||
A: No, please don't interfere with the patch status on patchwork, leave
|
||||
I submitted multiple versions of the patch series. Should I directly update patchwork for the previous versions of these patch series?
|
||||
--------------------------------------------------------------------------------------------------------------------------------------
|
||||
No, please don't interfere with the patch status on patchwork, leave
|
||||
it to the maintainer to figure out what is the most recent and current
|
||||
version that should be applied. If there is any doubt, the maintainer
|
||||
will reply and ask what should be done.
|
||||
|
||||
Q: I made changes to only a few patches in a patch series should I resend only those changed?
|
||||
---------------------------------------------------------------------------------------------
|
||||
A: No, please resend the entire patch series and make sure you do number your
|
||||
I made changes to only a few patches in a patch series should I resend only those changed?
|
||||
------------------------------------------------------------------------------------------
|
||||
No, please resend the entire patch series and make sure you do number your
|
||||
patches such that it is clear this is the latest and greatest set of patches
|
||||
that can be applied.
|
||||
|
||||
Q: I submitted multiple versions of a patch series and it looks like a version other than the last one has been accepted, what should I do?
|
||||
-------------------------------------------------------------------------------------------------------------------------------------------
|
||||
A: There is no revert possible, once it is pushed out, it stays like that.
|
||||
I submitted multiple versions of a patch series and it looks like a version other than the last one has been accepted, what should I do?
|
||||
----------------------------------------------------------------------------------------------------------------------------------------
|
||||
There is no revert possible, once it is pushed out, it stays like that.
|
||||
Please send incremental versions on top of what has been merged in order to fix
|
||||
the patches the way they would look like if your latest patch series was to be
|
||||
merged.
|
||||
|
||||
Q: How can I tell what patches are queued up for backporting to the various stable releases?
|
||||
--------------------------------------------------------------------------------------------
|
||||
A: Normally Greg Kroah-Hartman collects stable commits himself, but for
|
||||
How can I tell what patches are queued up for backporting to the various stable releases?
|
||||
-----------------------------------------------------------------------------------------
|
||||
Normally Greg Kroah-Hartman collects stable commits himself, but for
|
||||
networking, Dave collects up patches he deems critical for the
|
||||
networking subsystem, and then hands them off to Greg.
|
||||
|
||||
|
|
@ -169,11 +167,9 @@ simply clone the repo, and then git grep the mainline commit ID, e.g.
|
|||
releases/3.9.8/ipv6-fix-possible-crashes-in-ip6_cork_release.patch
|
||||
stable/stable-queue$
|
||||
|
||||
Q: I see a network patch and I think it should be backported to stable.
|
||||
-----------------------------------------------------------------------
|
||||
Q: Should I request it via stable@vger.kernel.org like the references in
|
||||
the kernel's Documentation/process/stable-kernel-rules.rst file say?
|
||||
A: No, not for networking. Check the stable queues as per above first
|
||||
I see a network patch and I think it should be backported to stable. Should I request it via stable@vger.kernel.org like the references in the kernel's Documentation/process/stable-kernel-rules.rst file say?
|
||||
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
||||
No, not for networking. Check the stable queues as per above first
|
||||
to see if it is already queued. If not, then send a mail to netdev,
|
||||
listing the upstream commit ID and why you think it should be a stable
|
||||
candidate.
|
||||
|
|
@ -190,11 +186,9 @@ mainline, the better the odds that it is an OK candidate for stable. So
|
|||
scrambling to request a commit be added the day after it appears should
|
||||
be avoided.
|
||||
|
||||
Q: I have created a network patch and I think it should be backported to stable.
|
||||
--------------------------------------------------------------------------------
|
||||
Q: Should I add a Cc: stable@vger.kernel.org like the references in the
|
||||
kernel's Documentation/ directory say?
|
||||
A: No. See above answer. In short, if you think it really belongs in
|
||||
I have created a network patch and I think it should be backported to stable. Should I add a Cc: stable@vger.kernel.org like the references in the kernel's Documentation/ directory say?
|
||||
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
||||
No. See above answer. In short, if you think it really belongs in
|
||||
stable, then ensure you write a decent commit log that describes who
|
||||
gets impacted by the bug fix and how it manifests itself, and when the
|
||||
bug was introduced. If you do that properly, then the commit will get
|
||||
|
|
@ -207,18 +201,18 @@ marker line as described in
|
|||
:ref:`Documentation/process/submitting-patches.rst <the_canonical_patch_format>`
|
||||
to temporarily embed that information into the patch that you send.
|
||||
|
||||
Q: Are all networking bug fixes backported to all stable releases?
|
||||
------------------------------------------------------------------
|
||||
A: Due to capacity, Dave could only take care of the backports for the
|
||||
Are all networking bug fixes backported to all stable releases?
|
||||
---------------------------------------------------------------
|
||||
Due to capacity, Dave could only take care of the backports for the
|
||||
last two stable releases. For earlier stable releases, each stable
|
||||
branch maintainer is supposed to take care of them. If you find any
|
||||
patch is missing from an earlier stable branch, please notify
|
||||
stable@vger.kernel.org with either a commit ID or a formal patch
|
||||
backported, and CC Dave and other relevant networking developers.
|
||||
|
||||
Q: Is the comment style convention different for the networking content?
|
||||
------------------------------------------------------------------------
|
||||
A: Yes, in a largely trivial way. Instead of this::
|
||||
Is the comment style convention different for the networking content?
|
||||
---------------------------------------------------------------------
|
||||
Yes, in a largely trivial way. Instead of this::
|
||||
|
||||
/*
|
||||
* foobar blah blah blah
|
||||
|
|
@ -231,32 +225,30 @@ it is requested that you make it look like this::
|
|||
* another line of text
|
||||
*/
|
||||
|
||||
Q: I am working in existing code that has the former comment style and not the latter.
|
||||
--------------------------------------------------------------------------------------
|
||||
Q: Should I submit new code in the former style or the latter?
|
||||
A: Make it the latter style, so that eventually all code in the domain
|
||||
I am working in existing code that has the former comment style and not the latter. Should I submit new code in the former style or the latter?
|
||||
-----------------------------------------------------------------------------------------------------------------------------------------------
|
||||
Make it the latter style, so that eventually all code in the domain
|
||||
of netdev is of this format.
|
||||
|
||||
Q: I found a bug that might have possible security implications or similar.
|
||||
---------------------------------------------------------------------------
|
||||
Q: Should I mail the main netdev maintainer off-list?**
|
||||
A: No. The current netdev maintainer has consistently requested that
|
||||
I found a bug that might have possible security implications or similar. Should I mail the main netdev maintainer off-list?
|
||||
---------------------------------------------------------------------------------------------------------------------------
|
||||
No. The current netdev maintainer has consistently requested that
|
||||
people use the mailing lists and not reach out directly. If you aren't
|
||||
OK with that, then perhaps consider mailing security@kernel.org or
|
||||
reading about http://oss-security.openwall.org/wiki/mailing-lists/distros
|
||||
as possible alternative mechanisms.
|
||||
|
||||
Q: What level of testing is expected before I submit my change?
|
||||
---------------------------------------------------------------
|
||||
A: If your changes are against ``net-next``, the expectation is that you
|
||||
What level of testing is expected before I submit my change?
|
||||
------------------------------------------------------------
|
||||
If your changes are against ``net-next``, the expectation is that you
|
||||
have tested by layering your changes on top of ``net-next``. Ideally
|
||||
you will have done run-time testing specific to your change, but at a
|
||||
minimum, your changes should survive an ``allyesconfig`` and an
|
||||
``allmodconfig`` build without new warnings or failures.
|
||||
|
||||
Q: How do I post corresponding changes to user space components?
|
||||
----------------------------------------------------------------
|
||||
A: User space code exercising kernel features should be posted
|
||||
How do I post corresponding changes to user space components?
|
||||
-------------------------------------------------------------
|
||||
User space code exercising kernel features should be posted
|
||||
alongside kernel patches. This gives reviewers a chance to see
|
||||
how any new interface is used and how well it works.
|
||||
|
||||
|
|
@ -280,9 +272,9 @@ to the mailing list, e.g.::
|
|||
Posting as one thread is discouraged because it confuses patchwork
|
||||
(as of patchwork 2.2.2).
|
||||
|
||||
Q: Any other tips to help ensure my net/net-next patch gets OK'd?
|
||||
-----------------------------------------------------------------
|
||||
A: Attention to detail. Re-read your own work as if you were the
|
||||
Any other tips to help ensure my net/net-next patch gets OK'd?
|
||||
--------------------------------------------------------------
|
||||
Attention to detail. Re-read your own work as if you were the
|
||||
reviewer. You can start with using ``checkpatch.pl``, perhaps even with
|
||||
the ``--strict`` flag. But do not be mindlessly robotic in doing so.
|
||||
If your change is a bug fix, make sure your commit log indicates the
|
||||
|
|
|
|||
|
|
@ -64,8 +64,8 @@ ndo_do_ioctl:
|
|||
Context: process
|
||||
|
||||
ndo_get_stats:
|
||||
Synchronization: dev_base_lock rwlock.
|
||||
Context: nominally process, but don't sleep inside an rwlock
|
||||
Synchronization: rtnl_lock() semaphore, dev_base_lock rwlock, or RCU.
|
||||
Context: atomic (can't sleep under rwlock or RCU)
|
||||
|
||||
ndo_start_xmit:
|
||||
Synchronization: __netif_tx_lock spinlock.
|
||||
|
|
|
|||
|
|
@ -8,7 +8,7 @@ Abstract
|
|||
========
|
||||
|
||||
This file documents the mmap() facility available with the PACKET
|
||||
socket interface on 2.4/2.6/3.x kernels. This type of sockets is used for
|
||||
socket interface. This type of sockets is used for
|
||||
|
||||
i) capture network traffic with utilities like tcpdump,
|
||||
ii) transmit network traffic, or any other that needs raw
|
||||
|
|
@ -25,12 +25,12 @@ Please send your comments to
|
|||
Why use PACKET_MMAP
|
||||
===================
|
||||
|
||||
In Linux 2.4/2.6/3.x if PACKET_MMAP is not enabled, the capture process is very
|
||||
Non PACKET_MMAP capture process (plain AF_PACKET) is very
|
||||
inefficient. It uses very limited buffers and requires one system call to
|
||||
capture each packet, it requires two if you want to get packet's timestamp
|
||||
(like libpcap always does).
|
||||
|
||||
In the other hand PACKET_MMAP is very efficient. PACKET_MMAP provides a size
|
||||
On the other hand PACKET_MMAP is very efficient. PACKET_MMAP provides a size
|
||||
configurable circular buffer mapped in user space that can be used to either
|
||||
send or receive packets. This way reading packets just needs to wait for them,
|
||||
most of the time there is no need to issue a single system call. Concerning
|
||||
|
|
@ -252,8 +252,7 @@ PACKET_MMAP setting constraints
|
|||
|
||||
In kernel versions prior to 2.4.26 (for the 2.4 branch) and 2.6.5 (2.6 branch),
|
||||
the PACKET_MMAP buffer could hold only 32768 frames in a 32 bit architecture or
|
||||
16384 in a 64 bit architecture. For information on these kernel versions
|
||||
see http://pusa.uv.es/~ulisses/packet_mmap/packet_mmap.pre-2.4.26_2.6.5.txt
|
||||
16384 in a 64 bit architecture.
|
||||
|
||||
Block size limit
|
||||
----------------
|
||||
|
|
@ -437,7 +436,7 @@ and the following flags apply:
|
|||
Capture process
|
||||
^^^^^^^^^^^^^^^
|
||||
|
||||
from include/linux/if_packet.h
|
||||
From include/linux/if_packet.h::
|
||||
|
||||
#define TP_STATUS_COPY (1 << 1)
|
||||
#define TP_STATUS_LOSING (1 << 2)
|
||||
|
|
|
|||
|
|
@ -249,10 +249,8 @@ features; most of these are found in the "kernel hacking" submenu. Several
|
|||
of these options should be turned on for any kernel used for development or
|
||||
testing purposes. In particular, you should turn on:
|
||||
|
||||
- ENABLE_MUST_CHECK and FRAME_WARN to get an
|
||||
extra set of warnings for problems like the use of deprecated interfaces
|
||||
or ignoring an important return value from a function. The output
|
||||
generated by these warnings can be verbose, but one need not worry about
|
||||
- FRAME_WARN to get warnings for stack frames larger than a given amount.
|
||||
The output generated can be verbose, but one need not worry about
|
||||
warnings from other parts of the kernel.
|
||||
|
||||
- DEBUG_OBJECTS will add code to track the lifetime of various objects
|
||||
|
|
|
|||
|
|
@ -71,7 +71,7 @@ core/oss
|
|||
The codes for PCM and mixer OSS emulation modules are stored in this
|
||||
directory. The rawmidi OSS emulation is included in the ALSA rawmidi
|
||||
code since it's quite small. The sequencer code is stored in
|
||||
``core/seq/oss`` directory (see `below <#core-seq-oss>`__).
|
||||
``core/seq/oss`` directory (see `below <core/seq/oss_>`__).
|
||||
|
||||
core/seq
|
||||
~~~~~~~~
|
||||
|
|
@ -382,7 +382,7 @@ where ``enable[dev]`` is the module option.
|
|||
Each time the ``probe`` callback is called, check the availability of
|
||||
the device. If not available, simply increment the device index and
|
||||
returns. dev will be incremented also later (`step 7
|
||||
<#set-the-pci-driver-data-and-return-zero>`__).
|
||||
<7) Set the PCI driver data and return zero._>`__).
|
||||
|
||||
2) Create a card instance
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
|
@ -450,10 +450,10 @@ field contains the information shown in ``/proc/asound/cards``.
|
|||
5) Create other components, such as mixer, MIDI, etc.
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
Here you define the basic components such as `PCM <#PCM-Interface>`__,
|
||||
mixer (e.g. `AC97 <#API-for-AC97-Codec>`__), MIDI (e.g.
|
||||
`MPU-401 <#MIDI-MPU401-UART-Interface>`__), and other interfaces.
|
||||
Also, if you want a `proc file <#Proc-Interface>`__, define it here,
|
||||
Here you define the basic components such as `PCM <PCM Interface_>`__,
|
||||
mixer (e.g. `AC97 <API for AC97 Codec_>`__), MIDI (e.g.
|
||||
`MPU-401 <MIDI (MPU401-UART) Interface_>`__), and other interfaces.
|
||||
Also, if you want a `proc file <Proc Interface_>`__, define it here,
|
||||
too.
|
||||
|
||||
6) Register the card instance.
|
||||
|
|
@ -941,7 +941,7 @@ The allocation of an interrupt source is done like this:
|
|||
chip->irq = pci->irq;
|
||||
|
||||
where :c:func:`snd_mychip_interrupt()` is the interrupt handler
|
||||
defined `later <#pcm-interface-interrupt-handler>`__. Note that
|
||||
defined `later <PCM Interrupt Handler_>`__. Note that
|
||||
``chip->irq`` should be defined only when :c:func:`request_irq()`
|
||||
succeeded.
|
||||
|
||||
|
|
@ -3104,7 +3104,7 @@ processing the output stream in the irq handler.
|
|||
|
||||
If the MPU-401 interface shares its interrupt with the other logical
|
||||
devices on the card, set ``MPU401_INFO_IRQ_HOOK`` (see
|
||||
`below <#MIDI-Interrupt-Handler>`__).
|
||||
`below <MIDI Interrupt Handler_>`__).
|
||||
|
||||
Usually, the port address corresponds to the command port and port + 1
|
||||
corresponds to the data port. If not, you may change the ``cport``
|
||||
|
|
|
|||
|
|
@ -392,9 +392,14 @@ This ioctl is obsolete and has been removed.
|
|||
|
||||
Errors:
|
||||
|
||||
===== =============================
|
||||
======= ==============================================================
|
||||
EINTR an unmasked signal is pending
|
||||
===== =============================
|
||||
ENOEXEC the vcpu hasn't been initialized or the guest tried to execute
|
||||
instructions from device memory (arm64)
|
||||
ENOSYS data abort outside memslots with no syndrome info and
|
||||
KVM_CAP_ARM_NISV_TO_USER not enabled (arm64)
|
||||
EPERM SVE feature set but not finalized (arm64)
|
||||
======= ==============================================================
|
||||
|
||||
This ioctl is used to run a guest virtual cpu. While there are no
|
||||
explicit parameters, there is an implicit parameter block that can be
|
||||
|
|
|
|||
55
MAINTAINERS
55
MAINTAINERS
|
|
@ -203,8 +203,8 @@ F: include/uapi/linux/nl80211.h
|
|||
F: net/wireless/
|
||||
|
||||
8169 10/100/1000 GIGABIT ETHERNET DRIVER
|
||||
M: Realtek linux nic maintainers <nic_swsd@realtek.com>
|
||||
M: Heiner Kallweit <hkallweit1@gmail.com>
|
||||
M: nic_swsd@realtek.com
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/ethernet/realtek/r8169*
|
||||
|
|
@ -2119,7 +2119,7 @@ N: atmel
|
|||
ARM/Microchip Sparx5 SoC support
|
||||
M: Lars Povlsen <lars.povlsen@microchip.com>
|
||||
M: Steen Hegelund <Steen.Hegelund@microchip.com>
|
||||
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
|
||||
M: UNGLinuxDriver@microchip.com
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Supported
|
||||
T: git git://github.com/microchip-ung/linux-upstream.git
|
||||
|
|
@ -3556,7 +3556,7 @@ S: Supported
|
|||
F: drivers/net/ethernet/broadcom/bnxt/
|
||||
|
||||
BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER
|
||||
M: Arend van Spriel <arend.vanspriel@broadcom.com>
|
||||
M: Arend van Spriel <aspriel@gmail.com>
|
||||
M: Franky Lin <franky.lin@broadcom.com>
|
||||
M: Hante Meuleman <hante.meuleman@broadcom.com>
|
||||
M: Chi-hsien Lin <chi-hsien.lin@infineon.com>
|
||||
|
|
@ -3883,7 +3883,7 @@ F: drivers/mtd/nand/raw/cadence-nand-controller.c
|
|||
CADENCE USB3 DRD IP DRIVER
|
||||
M: Peter Chen <peter.chen@nxp.com>
|
||||
M: Pawel Laszczak <pawell@cadence.com>
|
||||
M: Roger Quadros <rogerq@ti.com>
|
||||
R: Roger Quadros <rogerq@kernel.org>
|
||||
R: Aswath Govindraju <a-govindraju@ti.com>
|
||||
L: linux-usb@vger.kernel.org
|
||||
S: Maintained
|
||||
|
|
@ -3961,7 +3961,7 @@ F: net/can/
|
|||
CAN-J1939 NETWORK LAYER
|
||||
M: Robin van der Gracht <robin@protonic.nl>
|
||||
M: Oleksij Rempel <o.rempel@pengutronix.de>
|
||||
R: Pengutronix Kernel Team <kernel@pengutronix.de>
|
||||
R: kernel@pengutronix.de
|
||||
L: linux-can@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/networking/j1939.rst
|
||||
|
|
@ -4588,7 +4588,7 @@ B: https://bugzilla.kernel.org
|
|||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
|
||||
F: Documentation/admin-guide/pm/cpuidle.rst
|
||||
F: Documentation/driver-api/pm/cpuidle.rst
|
||||
F: drivers/cpuidle/*
|
||||
F: drivers/cpuidle/
|
||||
F: include/linux/cpuidle.h
|
||||
|
||||
CPU POWER MONITORING SUBSYSTEM
|
||||
|
|
@ -7363,7 +7363,6 @@ L: linux-hardening@vger.kernel.org
|
|||
S: Maintained
|
||||
F: Documentation/kbuild/gcc-plugins.rst
|
||||
F: scripts/Makefile.gcc-plugins
|
||||
F: scripts/gcc-plugin.sh
|
||||
F: scripts/gcc-plugins/
|
||||
|
||||
GCOV BASED KERNEL PROFILING
|
||||
|
|
@ -9273,7 +9272,7 @@ F: drivers/net/ethernet/sgi/ioc3-eth.c
|
|||
|
||||
IOMAP FILESYSTEM LIBRARY
|
||||
M: Christoph Hellwig <hch@infradead.org>
|
||||
M: Darrick J. Wong <darrick.wong@oracle.com>
|
||||
M: Darrick J. Wong <djwong@kernel.org>
|
||||
M: linux-xfs@vger.kernel.org
|
||||
M: linux-fsdevel@vger.kernel.org
|
||||
L: linux-xfs@vger.kernel.org
|
||||
|
|
@ -9776,7 +9775,7 @@ F: tools/testing/selftests/kvm/s390x/
|
|||
|
||||
KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)
|
||||
M: Paolo Bonzini <pbonzini@redhat.com>
|
||||
R: Sean Christopherson <sean.j.christopherson@intel.com>
|
||||
R: Sean Christopherson <seanjc@google.com>
|
||||
R: Vitaly Kuznetsov <vkuznets@redhat.com>
|
||||
R: Wanpeng Li <wanpengli@tencent.com>
|
||||
R: Jim Mattson <jmattson@google.com>
|
||||
|
|
@ -10260,7 +10259,6 @@ S: Supported
|
|||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
|
||||
F: Documentation/atomic_bitops.txt
|
||||
F: Documentation/atomic_t.txt
|
||||
F: Documentation/core-api/atomic_ops.rst
|
||||
F: Documentation/core-api/refcount-vs-atomic.rst
|
||||
F: Documentation/litmus-tests/
|
||||
F: Documentation/memory-barriers.txt
|
||||
|
|
@ -10847,7 +10845,7 @@ F: drivers/media/radio/radio-maxiradio*
|
|||
|
||||
MCAN MMIO DEVICE DRIVER
|
||||
M: Dan Murphy <dmurphy@ti.com>
|
||||
M: Sriram Dash <sriram.dash@samsung.com>
|
||||
M: Pankaj Sharma <pankj.sharma@samsung.com>
|
||||
L: linux-can@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
|
||||
|
|
@ -11667,7 +11665,7 @@ F: drivers/media/platform/atmel/atmel-isi.h
|
|||
|
||||
MICROCHIP KSZ SERIES ETHERNET SWITCH DRIVER
|
||||
M: Woojung Huh <woojung.huh@microchip.com>
|
||||
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
|
||||
M: UNGLinuxDriver@microchip.com
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
|
||||
|
|
@ -11677,7 +11675,7 @@ F: net/dsa/tag_ksz.c
|
|||
|
||||
MICROCHIP LAN743X ETHERNET DRIVER
|
||||
M: Bryan Whitehead <bryan.whitehead@microchip.com>
|
||||
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
|
||||
M: UNGLinuxDriver@microchip.com
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/ethernet/microchip/lan743x_*
|
||||
|
|
@ -11771,7 +11769,7 @@ F: drivers/net/wireless/microchip/wilc1000/
|
|||
|
||||
MICROSEMI MIPS SOCS
|
||||
M: Alexandre Belloni <alexandre.belloni@bootlin.com>
|
||||
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
|
||||
M: UNGLinuxDriver@microchip.com
|
||||
L: linux-mips@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/devicetree/bindings/mips/mscc.txt
|
||||
|
|
@ -12825,10 +12823,10 @@ F: tools/objtool/
|
|||
F: include/linux/objtool.h
|
||||
|
||||
OCELOT ETHERNET SWITCH DRIVER
|
||||
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
|
||||
M: Vladimir Oltean <vladimir.oltean@nxp.com>
|
||||
M: Claudiu Manoil <claudiu.manoil@nxp.com>
|
||||
M: Alexandre Belloni <alexandre.belloni@bootlin.com>
|
||||
M: UNGLinuxDriver@microchip.com
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/net/dsa/ocelot/*
|
||||
|
|
@ -13890,7 +13888,7 @@ F: drivers/platform/x86/peaq-wmi.c
|
|||
|
||||
PENSANDO ETHERNET DRIVERS
|
||||
M: Shannon Nelson <snelson@pensando.io>
|
||||
M: Pensando Drivers <drivers@pensando.io>
|
||||
M: drivers@pensando.io
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/networking/device_drivers/ethernet/pensando/ionic.rst
|
||||
|
|
@ -14669,7 +14667,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
|
|||
F: drivers/net/wireless/ath/ath11k/
|
||||
|
||||
QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
|
||||
M: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
|
||||
M: ath9k-devel@qca.qualcomm.com
|
||||
L: linux-wireless@vger.kernel.org
|
||||
S: Supported
|
||||
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath9k
|
||||
|
|
@ -16710,6 +16708,8 @@ M: Samuel Thibault <samuel.thibault@ens-lyon.org>
|
|||
L: speakup@linux-speakup.org
|
||||
S: Odd Fixes
|
||||
W: http://www.linux-speakup.org/
|
||||
W: https://github.com/linux-speakup/speakup
|
||||
B: https://github.com/linux-speakup/speakup/issues
|
||||
F: drivers/accessibility/speakup/
|
||||
|
||||
SPEAR CLOCK FRAMEWORK SUPPORT
|
||||
|
|
@ -17553,6 +17553,19 @@ S: Supported
|
|||
F: Documentation/devicetree/bindings/iio/dac/ti,dac7612.txt
|
||||
F: drivers/iio/dac/ti-dac7612.c
|
||||
|
||||
TEXAS INSTRUMENTS DMA DRIVERS
|
||||
M: Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
||||
L: dmaengine@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
|
||||
F: Documentation/devicetree/bindings/dma/ti-edma.txt
|
||||
F: Documentation/devicetree/bindings/dma/ti/
|
||||
F: drivers/dma/ti/
|
||||
X: drivers/dma/ti/cppi41.c
|
||||
F: include/linux/dma/k3-udma-glue.h
|
||||
F: include/linux/dma/ti-cppi5.h
|
||||
F: include/linux/dma/k3-psil.h
|
||||
|
||||
TEXAS INSTRUMENTS' SYSTEM CONTROL INTERFACE (TISCI) PROTOCOL DRIVER
|
||||
M: Nishanth Menon <nm@ti.com>
|
||||
M: Tero Kristo <t-kristo@ti.com>
|
||||
|
|
@ -18370,7 +18383,7 @@ F: include/linux/usb/isp116x.h
|
|||
|
||||
USB LAN78XX ETHERNET DRIVER
|
||||
M: Woojung Huh <woojung.huh@microchip.com>
|
||||
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
|
||||
M: UNGLinuxDriver@microchip.com
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/net/microchip,lan78xx.txt
|
||||
|
|
@ -18484,7 +18497,7 @@ F: drivers/net/usb/smsc75xx.*
|
|||
|
||||
USB SMSC95XX ETHERNET DRIVER
|
||||
M: Steve Glendinning <steve.glendinning@shawell.net>
|
||||
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
|
||||
M: UNGLinuxDriver@microchip.com
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/usb/smsc95xx.*
|
||||
|
|
@ -19031,7 +19044,7 @@ F: drivers/input/mouse/vmmouse.h
|
|||
|
||||
VMWARE VMXNET3 ETHERNET DRIVER
|
||||
M: Ronak Doshi <doshir@vmware.com>
|
||||
M: "VMware, Inc." <pv-drivers@vmware.com>
|
||||
M: pv-drivers@vmware.com
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/vmxnet3/
|
||||
|
|
@ -19505,7 +19518,7 @@ F: arch/x86/xen/*swiotlb*
|
|||
F: drivers/xen/*swiotlb*
|
||||
|
||||
XFS FILESYSTEM
|
||||
M: Darrick J. Wong <darrick.wong@oracle.com>
|
||||
M: Darrick J. Wong <djwong@kernel.org>
|
||||
M: linux-xfs@vger.kernel.org
|
||||
L: linux-xfs@vger.kernel.org
|
||||
S: Supported
|
||||
|
|
|
|||
2
Makefile
2
Makefile
|
|
@ -2,7 +2,7 @@
|
|||
VERSION = 5
|
||||
PATCHLEVEL = 11
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc1
|
||||
EXTRAVERSION = -rc3
|
||||
NAME = Kleptomaniac Octopus
|
||||
|
||||
# *DOCUMENTATION*
|
||||
|
|
|
|||
|
|
@ -1105,6 +1105,12 @@ config HAVE_ARCH_PFN_VALID
|
|||
config ARCH_SUPPORTS_DEBUG_PAGEALLOC
|
||||
bool
|
||||
|
||||
config ARCH_SPLIT_ARG64
|
||||
bool
|
||||
help
|
||||
If a 32-bit architecture requires 64-bit arguments to be split into
|
||||
pairs of 32-bit arguments, select this option.
|
||||
|
||||
source "kernel/gcov/Kconfig"
|
||||
|
||||
source "scripts/gcc-plugins/Kconfig"
|
||||
|
|
|
|||
|
|
@ -1 +0,0 @@
|
|||
#include <asm-generic/local64.h>
|
||||
|
|
@ -102,16 +102,22 @@ libs-y += arch/arc/lib/ $(LIBGCC)
|
|||
|
||||
boot := arch/arc/boot
|
||||
|
||||
#default target for make without any arguments.
|
||||
KBUILD_IMAGE := $(boot)/bootpImage
|
||||
|
||||
all: bootpImage
|
||||
bootpImage: vmlinux
|
||||
|
||||
boot_targets += uImage uImage.bin uImage.gz
|
||||
boot_targets := uImage.bin uImage.gz uImage.lzma
|
||||
|
||||
PHONY += $(boot_targets)
|
||||
$(boot_targets): vmlinux
|
||||
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
|
||||
|
||||
uimage-default-y := uImage.bin
|
||||
uimage-default-$(CONFIG_KERNEL_GZIP) := uImage.gz
|
||||
uimage-default-$(CONFIG_KERNEL_LZMA) := uImage.lzma
|
||||
|
||||
PHONY += uImage
|
||||
uImage: $(uimage-default-y)
|
||||
@ln -sf $< $(boot)/uImage
|
||||
@$(kecho) ' Image $(boot)/uImage is ready'
|
||||
|
||||
CLEAN_FILES += $(boot)/uImage
|
||||
|
||||
archclean:
|
||||
$(Q)$(MAKE) $(clean)=$(boot)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,4 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
targets := vmlinux.bin vmlinux.bin.gz uImage
|
||||
|
||||
# uImage build relies on mkimage being availble on your host for ARC target
|
||||
# You will need to build u-boot for ARC, rename mkimage to arc-elf32-mkimage
|
||||
|
|
@ -7,23 +6,18 @@ targets := vmlinux.bin vmlinux.bin.gz uImage
|
|||
|
||||
OBJCOPYFLAGS= -O binary -R .note -R .note.gnu.build-id -R .comment -S
|
||||
|
||||
LINUX_START_TEXT = $$(readelf -h vmlinux | \
|
||||
LINUX_START_TEXT = $$($(READELF) -h vmlinux | \
|
||||
grep "Entry point address" | grep -o 0x.*)
|
||||
|
||||
UIMAGE_LOADADDR = $(CONFIG_LINUX_LINK_BASE)
|
||||
UIMAGE_ENTRYADDR = $(LINUX_START_TEXT)
|
||||
|
||||
suffix-y := bin
|
||||
suffix-$(CONFIG_KERNEL_GZIP) := gz
|
||||
suffix-$(CONFIG_KERNEL_LZMA) := lzma
|
||||
|
||||
targets += uImage
|
||||
targets += vmlinux.bin
|
||||
targets += vmlinux.bin.gz
|
||||
targets += vmlinux.bin.lzma
|
||||
targets += uImage.bin
|
||||
targets += uImage.gz
|
||||
targets += uImage.lzma
|
||||
extra-y += vmlinux.bin
|
||||
extra-y += vmlinux.bin.gz
|
||||
extra-y += vmlinux.bin.lzma
|
||||
|
||||
$(obj)/vmlinux.bin: vmlinux FORCE
|
||||
$(call if_changed,objcopy)
|
||||
|
|
@ -42,7 +36,3 @@ $(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
|
|||
|
||||
$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma FORCE
|
||||
$(call if_changed,uimage,lzma)
|
||||
|
||||
$(obj)/uImage: $(obj)/uImage.$(suffix-y)
|
||||
@ln -sf $(notdir $<) $@
|
||||
@echo ' Image $@ is ready'
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
generic-y += extable.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += parport.h
|
||||
generic-y += user.h
|
||||
|
|
|
|||
|
|
@ -10,6 +10,7 @@
|
|||
#ifndef __ASSEMBLY__
|
||||
|
||||
#define clear_page(paddr) memset((paddr), 0, PAGE_SIZE)
|
||||
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
|
||||
#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
|
||||
|
||||
struct vm_area_struct;
|
||||
|
|
|
|||
|
|
@ -307,7 +307,7 @@ resume_user_mode_begin:
|
|||
mov r0, sp ; pt_regs for arg to do_signal()/do_notify_resume()
|
||||
|
||||
GET_CURR_THR_INFO_FLAGS r9
|
||||
and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL
|
||||
and.f 0, r9, _TIF_SIGPENDING|_TIF_NOTIFY_SIGNAL
|
||||
bz .Lchk_notify_resume
|
||||
|
||||
; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
|
||||
|
|
|
|||
|
|
@ -7,6 +7,7 @@ menuconfig ARC_SOC_HSDK
|
|||
depends on ISA_ARCV2
|
||||
select ARC_HAS_ACCL_REGS
|
||||
select ARC_IRQ_NO_AUTOSAVE
|
||||
select ARC_FPU_SAVE_RESTORE
|
||||
select CLK_HSDK
|
||||
select RESET_CONTROLLER
|
||||
select RESET_HSDK
|
||||
|
|
|
|||
|
|
@ -494,3 +494,11 @@ bluetooth {
|
|||
clock-names = "sysclk";
|
||||
};
|
||||
};
|
||||
|
||||
&aes1_target {
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
&aes2_target {
|
||||
status = "disabled";
|
||||
};
|
||||
|
|
|
|||
|
|
@ -45,18 +45,21 @@ paxi {
|
|||
emac: gem@30000 {
|
||||
compatible = "cadence,gem";
|
||||
reg = <0x30000 0x10000>;
|
||||
interrupt-parent = <&vic0>;
|
||||
interrupts = <31>;
|
||||
};
|
||||
|
||||
dmac1: dmac@40000 {
|
||||
compatible = "snps,dw-dmac";
|
||||
reg = <0x40000 0x10000>;
|
||||
interrupt-parent = <&vic0>;
|
||||
interrupts = <25>;
|
||||
};
|
||||
|
||||
dmac2: dmac@50000 {
|
||||
compatible = "snps,dw-dmac";
|
||||
reg = <0x50000 0x10000>;
|
||||
interrupt-parent = <&vic0>;
|
||||
interrupts = <26>;
|
||||
};
|
||||
|
||||
|
|
@ -233,6 +236,7 @@ ebi@50000000 {
|
|||
axi2pico@c0000000 {
|
||||
compatible = "picochip,axi2pico-pc3x2";
|
||||
reg = <0xc0000000 0x10000>;
|
||||
interrupt-parent = <&vic0>;
|
||||
interrupts = <13 14 15 16 17 18 19 20 21>;
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -329,6 +329,7 @@ dsi@a0351000 {
|
|||
panel@0 {
|
||||
compatible = "samsung,s6e63m0";
|
||||
reg = <0>;
|
||||
max-brightness = <15>;
|
||||
vdd3-supply = <&panel_reg_3v0>;
|
||||
vci-supply = <&panel_reg_1v8>;
|
||||
reset-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
|
||||
|
|
|
|||
|
|
@ -279,6 +279,7 @@ CONFIG_SERIAL_OMAP_CONSOLE=y
|
|||
CONFIG_SERIAL_DEV_BUS=y
|
||||
CONFIG_I2C_CHARDEV=y
|
||||
CONFIG_SPI=y
|
||||
CONFIG_SPI_GPIO=m
|
||||
CONFIG_SPI_OMAP24XX=y
|
||||
CONFIG_SPI_TI_QSPI=m
|
||||
CONFIG_HSI=m
|
||||
|
|
@ -296,7 +297,6 @@ CONFIG_GPIO_TWL4030=y
|
|||
CONFIG_W1=m
|
||||
CONFIG_HDQ_MASTER_OMAP=m
|
||||
CONFIG_W1_SLAVE_DS250X=m
|
||||
CONFIG_POWER_AVS=y
|
||||
CONFIG_POWER_RESET=y
|
||||
CONFIG_POWER_RESET_GPIO=y
|
||||
CONFIG_BATTERY_BQ27XXX=m
|
||||
|
|
|
|||
|
|
@ -60,6 +60,7 @@ static void chacha_doneon(u32 *state, u8 *dst, const u8 *src,
|
|||
chacha_block_xor_neon(state, d, s, nrounds);
|
||||
if (d != dst)
|
||||
memcpy(dst, buf, bytes);
|
||||
state[12]++;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,6 @@
|
|||
generic-y += early_ioremap.h
|
||||
generic-y += extable.h
|
||||
generic-y += flat.h
|
||||
generic-y += local64.h
|
||||
generic-y += parport.h
|
||||
|
||||
generated-y += mach-types.h
|
||||
|
|
|
|||
|
|
@ -230,10 +230,12 @@ static int _omap_device_notifier_call(struct notifier_block *nb,
|
|||
break;
|
||||
case BUS_NOTIFY_BIND_DRIVER:
|
||||
od = to_omap_device(pdev);
|
||||
if (od && (od->_state == OMAP_DEVICE_STATE_ENABLED) &&
|
||||
pm_runtime_status_suspended(dev)) {
|
||||
if (od) {
|
||||
od->_driver_status = BUS_NOTIFY_BIND_DRIVER;
|
||||
pm_runtime_set_active(dev);
|
||||
if (od->_state == OMAP_DEVICE_STATE_ENABLED &&
|
||||
pm_runtime_status_suspended(dev)) {
|
||||
pm_runtime_set_active(dev);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case BUS_NOTIFY_ADD_DEVICE:
|
||||
|
|
|
|||
|
|
@ -71,7 +71,7 @@ static struct omap_voltdm_pmic omap_cpcap_iva = {
|
|||
.vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN,
|
||||
.vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX,
|
||||
.vddmin = 900000,
|
||||
.vddmax = 1350000,
|
||||
.vddmax = 1375000,
|
||||
.vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US,
|
||||
.i2c_slave_addr = 0x44,
|
||||
.volt_reg_addr = 0x0,
|
||||
|
|
|
|||
|
|
@ -10,7 +10,7 @@
|
|||
#
|
||||
# Copyright (C) 1995-2001 by Russell King
|
||||
|
||||
LDFLAGS_vmlinux :=--no-undefined -X -z norelro
|
||||
LDFLAGS_vmlinux :=--no-undefined -X
|
||||
|
||||
ifeq ($(CONFIG_RELOCATABLE), y)
|
||||
# Pass --no-apply-dynamic-relocs to restore pre-binutils-2.27 behaviour
|
||||
|
|
@ -115,16 +115,20 @@ KBUILD_CPPFLAGS += -mbig-endian
|
|||
CHECKFLAGS += -D__AARCH64EB__
|
||||
# Prefer the baremetal ELF build target, but not all toolchains include
|
||||
# it so fall back to the standard linux version if needed.
|
||||
KBUILD_LDFLAGS += -EB $(call ld-option, -maarch64elfb, -maarch64linuxb)
|
||||
KBUILD_LDFLAGS += -EB $(call ld-option, -maarch64elfb, -maarch64linuxb -z norelro)
|
||||
UTS_MACHINE := aarch64_be
|
||||
else
|
||||
KBUILD_CPPFLAGS += -mlittle-endian
|
||||
CHECKFLAGS += -D__AARCH64EL__
|
||||
# Same as above, prefer ELF but fall back to linux target if needed.
|
||||
KBUILD_LDFLAGS += -EL $(call ld-option, -maarch64elf, -maarch64linux)
|
||||
KBUILD_LDFLAGS += -EL $(call ld-option, -maarch64elf, -maarch64linux -z norelro)
|
||||
UTS_MACHINE := aarch64
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_LD_IS_LLD), y)
|
||||
KBUILD_LDFLAGS += -z norelro
|
||||
endif
|
||||
|
||||
CHECKFLAGS += -D__aarch64__
|
||||
|
||||
ifeq ($(CONFIG_DYNAMIC_FTRACE_WITH_REGS),y)
|
||||
|
|
|
|||
|
|
@ -127,7 +127,7 @@ porta: gpio-controller@0 {
|
|||
compatible = "snps,dw-apb-gpio-port";
|
||||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
snps,nr-gpios = <32>;
|
||||
ngpios = <32>;
|
||||
reg = <0>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
|
|
@ -145,7 +145,7 @@ portb: gpio-controller@0 {
|
|||
compatible = "snps,dw-apb-gpio-port";
|
||||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
snps,nr-gpios = <32>;
|
||||
ngpios = <32>;
|
||||
reg = <0>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
|
|
@ -163,7 +163,7 @@ portc: gpio-controller@0 {
|
|||
compatible = "snps,dw-apb-gpio-port";
|
||||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
snps,nr-gpios = <8>;
|
||||
ngpios = <8>;
|
||||
reg = <0>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
|
|
|
|||
|
|
@ -1,6 +1,5 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
generic-y += early_ioremap.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += qrwlock.h
|
||||
generic-y += qspinlock.h
|
||||
|
|
|
|||
|
|
@ -17,6 +17,7 @@
|
|||
#include <linux/jump_label.h>
|
||||
#include <linux/kvm_types.h>
|
||||
#include <linux/percpu.h>
|
||||
#include <linux/psci.h>
|
||||
#include <asm/arch_gicv3.h>
|
||||
#include <asm/barrier.h>
|
||||
#include <asm/cpufeature.h>
|
||||
|
|
@ -240,6 +241,28 @@ struct kvm_host_data {
|
|||
struct kvm_pmu_events pmu_events;
|
||||
};
|
||||
|
||||
struct kvm_host_psci_config {
|
||||
/* PSCI version used by host. */
|
||||
u32 version;
|
||||
|
||||
/* Function IDs used by host if version is v0.1. */
|
||||
struct psci_0_1_function_ids function_ids_0_1;
|
||||
|
||||
bool psci_0_1_cpu_suspend_implemented;
|
||||
bool psci_0_1_cpu_on_implemented;
|
||||
bool psci_0_1_cpu_off_implemented;
|
||||
bool psci_0_1_migrate_implemented;
|
||||
};
|
||||
|
||||
extern struct kvm_host_psci_config kvm_nvhe_sym(kvm_host_psci_config);
|
||||
#define kvm_host_psci_config CHOOSE_NVHE_SYM(kvm_host_psci_config)
|
||||
|
||||
extern s64 kvm_nvhe_sym(hyp_physvirt_offset);
|
||||
#define hyp_physvirt_offset CHOOSE_NVHE_SYM(hyp_physvirt_offset)
|
||||
|
||||
extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS];
|
||||
#define hyp_cpu_logical_map CHOOSE_NVHE_SYM(hyp_cpu_logical_map)
|
||||
|
||||
struct vcpu_reset_state {
|
||||
unsigned long pc;
|
||||
unsigned long r0;
|
||||
|
|
|
|||
|
|
@ -94,7 +94,8 @@
|
|||
#endif /* CONFIG_ARM64_FORCE_52BIT */
|
||||
|
||||
extern phys_addr_t arm64_dma_phys_limit;
|
||||
#define ARCH_LOW_ADDRESS_LIMIT (arm64_dma_phys_limit - 1)
|
||||
extern phys_addr_t arm64_dma32_phys_limit;
|
||||
#define ARCH_LOW_ADDRESS_LIMIT ((arm64_dma_phys_limit ? : arm64_dma32_phys_limit) - 1)
|
||||
|
||||
struct debug_info {
|
||||
#ifdef CONFIG_HAVE_HW_BREAKPOINT
|
||||
|
|
|
|||
|
|
@ -176,10 +176,21 @@ static inline void __uaccess_enable_hw_pan(void)
|
|||
* The Tag check override (TCO) bit disables temporarily the tag checking
|
||||
* preventing the issue.
|
||||
*/
|
||||
static inline void uaccess_disable_privileged(void)
|
||||
static inline void __uaccess_disable_tco(void)
|
||||
{
|
||||
asm volatile(ALTERNATIVE("nop", SET_PSTATE_TCO(0),
|
||||
ARM64_MTE, CONFIG_KASAN_HW_TAGS));
|
||||
}
|
||||
|
||||
static inline void __uaccess_enable_tco(void)
|
||||
{
|
||||
asm volatile(ALTERNATIVE("nop", SET_PSTATE_TCO(1),
|
||||
ARM64_MTE, CONFIG_KASAN_HW_TAGS));
|
||||
}
|
||||
|
||||
static inline void uaccess_disable_privileged(void)
|
||||
{
|
||||
__uaccess_disable_tco();
|
||||
|
||||
if (uaccess_ttbr0_disable())
|
||||
return;
|
||||
|
|
@ -189,8 +200,7 @@ static inline void uaccess_disable_privileged(void)
|
|||
|
||||
static inline void uaccess_enable_privileged(void)
|
||||
{
|
||||
asm volatile(ALTERNATIVE("nop", SET_PSTATE_TCO(1),
|
||||
ARM64_MTE, CONFIG_KASAN_HW_TAGS));
|
||||
__uaccess_enable_tco();
|
||||
|
||||
if (uaccess_ttbr0_enable())
|
||||
return;
|
||||
|
|
|
|||
|
|
@ -2568,7 +2568,7 @@ static void verify_hyp_capabilities(void)
|
|||
int parange, ipa_max;
|
||||
unsigned int safe_vmid_bits, vmid_bits;
|
||||
|
||||
if (!IS_ENABLED(CONFIG_KVM) || !IS_ENABLED(CONFIG_KVM_ARM_HOST))
|
||||
if (!IS_ENABLED(CONFIG_KVM))
|
||||
return;
|
||||
|
||||
safe_mmfr1 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
|
||||
|
|
|
|||
|
|
@ -182,7 +182,6 @@ alternative_else_nop_endif
|
|||
mrs_s \tmp2, SYS_GCR_EL1
|
||||
bfi \tmp2, \tmp, #0, #16
|
||||
msr_s SYS_GCR_EL1, \tmp2
|
||||
isb
|
||||
#endif
|
||||
.endm
|
||||
|
||||
|
|
@ -194,6 +193,7 @@ alternative_else_nop_endif
|
|||
ldr_l \tmp, gcr_kernel_excl
|
||||
|
||||
mte_set_gcr \tmp, \tmp2
|
||||
isb
|
||||
1:
|
||||
#endif
|
||||
.endm
|
||||
|
|
|
|||
|
|
@ -434,7 +434,7 @@ static void __init hyp_mode_check(void)
|
|||
"CPU: CPUs started in inconsistent modes");
|
||||
else
|
||||
pr_info("CPU: All CPU(s) started at EL1\n");
|
||||
if (IS_ENABLED(CONFIG_KVM))
|
||||
if (IS_ENABLED(CONFIG_KVM) && !is_kernel_in_hyp_mode())
|
||||
kvm_compute_layout();
|
||||
}
|
||||
|
||||
|
|
@ -807,7 +807,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
|
|||
unsigned int cpu, i;
|
||||
|
||||
for (i = 0; i < NR_IPI; i++) {
|
||||
unsigned int irq = irq_desc_get_irq(ipi_desc[i]);
|
||||
seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i,
|
||||
prec >= 4 ? " " : "");
|
||||
for_each_online_cpu(cpu)
|
||||
|
|
|
|||
|
|
@ -42,7 +42,6 @@
|
|||
#include <asm/smp.h>
|
||||
#include <asm/stack_pointer.h>
|
||||
#include <asm/stacktrace.h>
|
||||
#include <asm/exception.h>
|
||||
#include <asm/system_misc.h>
|
||||
#include <asm/sysreg.h>
|
||||
|
||||
|
|
|
|||
|
|
@ -24,8 +24,7 @@ btildflags-$(CONFIG_ARM64_BTI_KERNEL) += -z force-bti
|
|||
# routines, as x86 does (see 6f121e548f83 ("x86, vdso: Reimplement vdso.so
|
||||
# preparation in build-time C")).
|
||||
ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \
|
||||
-Bsymbolic $(call ld-option, --no-eh-frame-hdr) --build-id=sha1 -n \
|
||||
$(btildflags-y) -T
|
||||
-Bsymbolic --build-id=sha1 -n $(btildflags-y) -T
|
||||
|
||||
ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18
|
||||
ccflags-y += -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO
|
||||
|
|
|
|||
|
|
@ -40,9 +40,6 @@ SECTIONS
|
|||
PROVIDE (_etext = .);
|
||||
PROVIDE (etext = .);
|
||||
|
||||
.eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
|
||||
.eh_frame : { KEEP (*(.eh_frame)) } :text
|
||||
|
||||
.dynamic : { *(.dynamic) } :text :dynamic
|
||||
|
||||
.rodata : { *(.rodata*) } :text
|
||||
|
|
@ -54,6 +51,7 @@ SECTIONS
|
|||
*(.note.GNU-stack)
|
||||
*(.data .data.* .gnu.linkonce.d.* .sdata*)
|
||||
*(.bss .sbss .dynbss .dynsbss)
|
||||
*(.eh_frame .eh_frame_hdr)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -66,7 +64,6 @@ PHDRS
|
|||
text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
|
||||
dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
|
||||
note PT_NOTE FLAGS(4); /* PF_R */
|
||||
eh_frame_hdr PT_GNU_EH_FRAME;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -49,14 +49,6 @@ if KVM
|
|||
|
||||
source "virt/kvm/Kconfig"
|
||||
|
||||
config KVM_ARM_PMU
|
||||
bool "Virtual Performance Monitoring Unit (PMU) support"
|
||||
depends on HW_PERF_EVENTS
|
||||
default y
|
||||
help
|
||||
Adds support for a virtual Performance Monitoring Unit (PMU) in
|
||||
virtual machines.
|
||||
|
||||
endif # KVM
|
||||
|
||||
endif # VIRTUALIZATION
|
||||
|
|
|
|||
|
|
@ -24,4 +24,4 @@ kvm-y := $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o \
|
|||
vgic/vgic-mmio-v3.o vgic/vgic-kvm-device.o \
|
||||
vgic/vgic-its.o vgic/vgic-debug.o
|
||||
|
||||
kvm-$(CONFIG_KVM_ARM_PMU) += pmu-emul.o
|
||||
kvm-$(CONFIG_HW_PERF_EVENTS) += pmu-emul.o
|
||||
|
|
|
|||
|
|
@ -1129,9 +1129,10 @@ int kvm_timer_enable(struct kvm_vcpu *vcpu)
|
|||
if (!irqchip_in_kernel(vcpu->kvm))
|
||||
goto no_vgic;
|
||||
|
||||
if (!vgic_initialized(vcpu->kvm))
|
||||
return -ENODEV;
|
||||
|
||||
/*
|
||||
* At this stage, we have the guarantee that the vgic is both
|
||||
* available and initialized.
|
||||
*/
|
||||
if (!timer_irqs_are_valid(vcpu)) {
|
||||
kvm_debug("incorrectly configured timer irqs\n");
|
||||
return -EINVAL;
|
||||
|
|
|
|||
|
|
@ -65,10 +65,6 @@ static bool vgic_present;
|
|||
static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
|
||||
DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
|
||||
|
||||
extern u64 kvm_nvhe_sym(__cpu_logical_map)[NR_CPUS];
|
||||
extern u32 kvm_nvhe_sym(kvm_host_psci_version);
|
||||
extern struct psci_0_1_function_ids kvm_nvhe_sym(kvm_host_psci_0_1_function_ids);
|
||||
|
||||
int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE;
|
||||
|
|
@ -584,11 +580,9 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
|
|||
* Map the VGIC hardware resources before running a vcpu the
|
||||
* first time on this VM.
|
||||
*/
|
||||
if (unlikely(!vgic_ready(kvm))) {
|
||||
ret = kvm_vgic_map_resources(kvm);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
ret = kvm_vgic_map_resources(kvm);
|
||||
if (ret)
|
||||
return ret;
|
||||
} else {
|
||||
/*
|
||||
* Tell the rest of the code that there are userspace irqchip
|
||||
|
|
@ -1574,12 +1568,12 @@ static struct notifier_block hyp_init_cpu_pm_nb = {
|
|||
.notifier_call = hyp_init_cpu_pm_notifier,
|
||||
};
|
||||
|
||||
static void __init hyp_cpu_pm_init(void)
|
||||
static void hyp_cpu_pm_init(void)
|
||||
{
|
||||
if (!is_protected_kvm_enabled())
|
||||
cpu_pm_register_notifier(&hyp_init_cpu_pm_nb);
|
||||
}
|
||||
static void __init hyp_cpu_pm_exit(void)
|
||||
static void hyp_cpu_pm_exit(void)
|
||||
{
|
||||
if (!is_protected_kvm_enabled())
|
||||
cpu_pm_unregister_notifier(&hyp_init_cpu_pm_nb);
|
||||
|
|
@ -1604,9 +1598,12 @@ static void init_cpu_logical_map(void)
|
|||
* allow any other CPUs from the `possible` set to boot.
|
||||
*/
|
||||
for_each_online_cpu(cpu)
|
||||
kvm_nvhe_sym(__cpu_logical_map)[cpu] = cpu_logical_map(cpu);
|
||||
hyp_cpu_logical_map[cpu] = cpu_logical_map(cpu);
|
||||
}
|
||||
|
||||
#define init_psci_0_1_impl_state(config, what) \
|
||||
config.psci_0_1_ ## what ## _implemented = psci_ops.what
|
||||
|
||||
static bool init_psci_relay(void)
|
||||
{
|
||||
/*
|
||||
|
|
@ -1618,8 +1615,15 @@ static bool init_psci_relay(void)
|
|||
return false;
|
||||
}
|
||||
|
||||
kvm_nvhe_sym(kvm_host_psci_version) = psci_ops.get_version();
|
||||
kvm_nvhe_sym(kvm_host_psci_0_1_function_ids) = get_psci_0_1_function_ids();
|
||||
kvm_host_psci_config.version = psci_ops.get_version();
|
||||
|
||||
if (kvm_host_psci_config.version == PSCI_VERSION(0, 1)) {
|
||||
kvm_host_psci_config.function_ids_0_1 = get_psci_0_1_function_ids();
|
||||
init_psci_0_1_impl_state(kvm_host_psci_config, cpu_suspend);
|
||||
init_psci_0_1_impl_state(kvm_host_psci_config, cpu_on);
|
||||
init_psci_0_1_impl_state(kvm_host_psci_config, cpu_off);
|
||||
init_psci_0_1_impl_state(kvm_host_psci_config, migrate);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -59,4 +59,13 @@ static inline void __adjust_pc(struct kvm_vcpu *vcpu)
|
|||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Skip an instruction while host sysregs are live.
|
||||
* Assumes host is always 64-bit.
|
||||
*/
|
||||
static inline void kvm_skip_host_instr(void)
|
||||
{
|
||||
write_sysreg_el2(read_sysreg_el2(SYS_ELR) + 4, SYS_ELR);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -157,11 +157,6 @@ static void default_host_smc_handler(struct kvm_cpu_context *host_ctxt)
|
|||
__kvm_hyp_host_forward_smc(host_ctxt);
|
||||
}
|
||||
|
||||
static void skip_host_instruction(void)
|
||||
{
|
||||
write_sysreg_el2(read_sysreg_el2(SYS_ELR) + 4, SYS_ELR);
|
||||
}
|
||||
|
||||
static void handle_host_smc(struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
bool handled;
|
||||
|
|
@ -170,11 +165,8 @@ static void handle_host_smc(struct kvm_cpu_context *host_ctxt)
|
|||
if (!handled)
|
||||
default_host_smc_handler(host_ctxt);
|
||||
|
||||
/*
|
||||
* Unlike HVC, the return address of an SMC is the instruction's PC.
|
||||
* Move the return address past the instruction.
|
||||
*/
|
||||
skip_host_instruction();
|
||||
/* SMC was trapped, move ELR past the current PC. */
|
||||
kvm_skip_host_instr();
|
||||
}
|
||||
|
||||
void handle_trap(struct kvm_cpu_context *host_ctxt)
|
||||
|
|
|
|||
|
|
@ -14,14 +14,14 @@
|
|||
* Other CPUs should not be allowed to boot because their features were
|
||||
* not checked against the finalized system capabilities.
|
||||
*/
|
||||
u64 __ro_after_init __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
|
||||
u64 __ro_after_init hyp_cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
|
||||
|
||||
u64 cpu_logical_map(unsigned int cpu)
|
||||
{
|
||||
if (cpu >= ARRAY_SIZE(__cpu_logical_map))
|
||||
if (cpu >= ARRAY_SIZE(hyp_cpu_logical_map))
|
||||
hyp_panic();
|
||||
|
||||
return __cpu_logical_map[cpu];
|
||||
return hyp_cpu_logical_map[cpu];
|
||||
}
|
||||
|
||||
unsigned long __hyp_per_cpu_offset(unsigned int cpu)
|
||||
|
|
|
|||
|
|
@ -7,11 +7,8 @@
|
|||
#include <asm/kvm_asm.h>
|
||||
#include <asm/kvm_hyp.h>
|
||||
#include <asm/kvm_mmu.h>
|
||||
#include <kvm/arm_hypercalls.h>
|
||||
#include <linux/arm-smccc.h>
|
||||
#include <linux/kvm_host.h>
|
||||
#include <linux/psci.h>
|
||||
#include <kvm/arm_psci.h>
|
||||
#include <uapi/linux/psci.h>
|
||||
|
||||
#include <nvhe/trap_handler.h>
|
||||
|
|
@ -22,9 +19,8 @@ void kvm_hyp_cpu_resume(unsigned long r0);
|
|||
void __noreturn __host_enter(struct kvm_cpu_context *host_ctxt);
|
||||
|
||||
/* Config options set by the host. */
|
||||
__ro_after_init u32 kvm_host_psci_version;
|
||||
__ro_after_init struct psci_0_1_function_ids kvm_host_psci_0_1_function_ids;
|
||||
__ro_after_init s64 hyp_physvirt_offset;
|
||||
struct kvm_host_psci_config __ro_after_init kvm_host_psci_config;
|
||||
s64 __ro_after_init hyp_physvirt_offset;
|
||||
|
||||
#define __hyp_pa(x) ((phys_addr_t)((x)) + hyp_physvirt_offset)
|
||||
|
||||
|
|
@ -47,19 +43,16 @@ struct psci_boot_args {
|
|||
static DEFINE_PER_CPU(struct psci_boot_args, cpu_on_args) = PSCI_BOOT_ARGS_INIT;
|
||||
static DEFINE_PER_CPU(struct psci_boot_args, suspend_args) = PSCI_BOOT_ARGS_INIT;
|
||||
|
||||
static u64 get_psci_func_id(struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
DECLARE_REG(u64, func_id, host_ctxt, 0);
|
||||
|
||||
return func_id;
|
||||
}
|
||||
#define is_psci_0_1(what, func_id) \
|
||||
(kvm_host_psci_config.psci_0_1_ ## what ## _implemented && \
|
||||
(func_id) == kvm_host_psci_config.function_ids_0_1.what)
|
||||
|
||||
static bool is_psci_0_1_call(u64 func_id)
|
||||
{
|
||||
return (func_id == kvm_host_psci_0_1_function_ids.cpu_suspend) ||
|
||||
(func_id == kvm_host_psci_0_1_function_ids.cpu_on) ||
|
||||
(func_id == kvm_host_psci_0_1_function_ids.cpu_off) ||
|
||||
(func_id == kvm_host_psci_0_1_function_ids.migrate);
|
||||
return (is_psci_0_1(cpu_suspend, func_id) ||
|
||||
is_psci_0_1(cpu_on, func_id) ||
|
||||
is_psci_0_1(cpu_off, func_id) ||
|
||||
is_psci_0_1(migrate, func_id));
|
||||
}
|
||||
|
||||
static bool is_psci_0_2_call(u64 func_id)
|
||||
|
|
@ -69,16 +62,6 @@ static bool is_psci_0_2_call(u64 func_id)
|
|||
(PSCI_0_2_FN64(0) <= func_id && func_id <= PSCI_0_2_FN64(31));
|
||||
}
|
||||
|
||||
static bool is_psci_call(u64 func_id)
|
||||
{
|
||||
switch (kvm_host_psci_version) {
|
||||
case PSCI_VERSION(0, 1):
|
||||
return is_psci_0_1_call(func_id);
|
||||
default:
|
||||
return is_psci_0_2_call(func_id);
|
||||
}
|
||||
}
|
||||
|
||||
static unsigned long psci_call(unsigned long fn, unsigned long arg0,
|
||||
unsigned long arg1, unsigned long arg2)
|
||||
{
|
||||
|
|
@ -248,15 +231,14 @@ asmlinkage void __noreturn kvm_host_psci_cpu_entry(bool is_cpu_on)
|
|||
|
||||
static unsigned long psci_0_1_handler(u64 func_id, struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
if ((func_id == kvm_host_psci_0_1_function_ids.cpu_off) ||
|
||||
(func_id == kvm_host_psci_0_1_function_ids.migrate))
|
||||
if (is_psci_0_1(cpu_off, func_id) || is_psci_0_1(migrate, func_id))
|
||||
return psci_forward(host_ctxt);
|
||||
else if (func_id == kvm_host_psci_0_1_function_ids.cpu_on)
|
||||
if (is_psci_0_1(cpu_on, func_id))
|
||||
return psci_cpu_on(func_id, host_ctxt);
|
||||
else if (func_id == kvm_host_psci_0_1_function_ids.cpu_suspend)
|
||||
if (is_psci_0_1(cpu_suspend, func_id))
|
||||
return psci_cpu_suspend(func_id, host_ctxt);
|
||||
else
|
||||
return PSCI_RET_NOT_SUPPORTED;
|
||||
|
||||
return PSCI_RET_NOT_SUPPORTED;
|
||||
}
|
||||
|
||||
static unsigned long psci_0_2_handler(u64 func_id, struct kvm_cpu_context *host_ctxt)
|
||||
|
|
@ -298,20 +280,23 @@ static unsigned long psci_1_0_handler(u64 func_id, struct kvm_cpu_context *host_
|
|||
|
||||
bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
u64 func_id = get_psci_func_id(host_ctxt);
|
||||
DECLARE_REG(u64, func_id, host_ctxt, 0);
|
||||
unsigned long ret;
|
||||
|
||||
if (!is_psci_call(func_id))
|
||||
return false;
|
||||
|
||||
switch (kvm_host_psci_version) {
|
||||
switch (kvm_host_psci_config.version) {
|
||||
case PSCI_VERSION(0, 1):
|
||||
if (!is_psci_0_1_call(func_id))
|
||||
return false;
|
||||
ret = psci_0_1_handler(func_id, host_ctxt);
|
||||
break;
|
||||
case PSCI_VERSION(0, 2):
|
||||
if (!is_psci_0_2_call(func_id))
|
||||
return false;
|
||||
ret = psci_0_2_handler(func_id, host_ctxt);
|
||||
break;
|
||||
default:
|
||||
if (!is_psci_0_2_call(func_id))
|
||||
return false;
|
||||
ret = psci_1_0_handler(func_id, host_ctxt);
|
||||
break;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -850,8 +850,6 @@ int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu)
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
kvm_pmu_vcpu_reset(vcpu);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -594,6 +594,10 @@ static void reset_pmcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
|
|||
{
|
||||
u64 pmcr, val;
|
||||
|
||||
/* No PMU available, PMCR_EL0 may UNDEF... */
|
||||
if (!kvm_arm_support_pmu_v3())
|
||||
return;
|
||||
|
||||
pmcr = read_sysreg(pmcr_el0);
|
||||
/*
|
||||
* Writable bits of PMCR_EL0 (ARMV8_PMU_PMCR_MASK) are reset to UNKNOWN
|
||||
|
|
@ -919,7 +923,7 @@ static bool access_pmuserenr(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
|
|||
|
||||
#define reg_to_encoding(x) \
|
||||
sys_reg((u32)(x)->Op0, (u32)(x)->Op1, \
|
||||
(u32)(x)->CRn, (u32)(x)->CRm, (u32)(x)->Op2);
|
||||
(u32)(x)->CRn, (u32)(x)->CRm, (u32)(x)->Op2)
|
||||
|
||||
/* Silly macro to expand the DBG{BCR,BVR,WVR,WCR}n_EL1 registers in one go */
|
||||
#define DBG_BCR_BVR_WCR_WVR_EL1(n) \
|
||||
|
|
|
|||
|
|
@ -34,17 +34,16 @@ static u64 __early_kern_hyp_va(u64 addr)
|
|||
}
|
||||
|
||||
/*
|
||||
* Store a hyp VA <-> PA offset into a hyp-owned variable.
|
||||
* Store a hyp VA <-> PA offset into a EL2-owned variable.
|
||||
*/
|
||||
static void init_hyp_physvirt_offset(void)
|
||||
{
|
||||
extern s64 kvm_nvhe_sym(hyp_physvirt_offset);
|
||||
u64 kern_va, hyp_va;
|
||||
|
||||
/* Compute the offset from the hyp VA and PA of a random symbol. */
|
||||
kern_va = (u64)kvm_ksym_ref(__hyp_text_start);
|
||||
kern_va = (u64)lm_alias(__hyp_text_start);
|
||||
hyp_va = __early_kern_hyp_va(kern_va);
|
||||
CHOOSE_NVHE_SYM(hyp_physvirt_offset) = (s64)__pa(kern_va) - (s64)hyp_va;
|
||||
hyp_physvirt_offset = (s64)__pa(kern_va) - (s64)hyp_va;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -419,7 +419,8 @@ int vgic_lazy_init(struct kvm *kvm)
|
|||
* Map the MMIO regions depending on the VGIC model exposed to the guest
|
||||
* called on the first VCPU run.
|
||||
* Also map the virtual CPU interface into the VM.
|
||||
* v2/v3 derivatives call vgic_init if not already done.
|
||||
* v2 calls vgic_init() if not already done.
|
||||
* v3 and derivatives return an error if the VGIC is not initialized.
|
||||
* vgic_ready() returns true if this function has succeeded.
|
||||
* @kvm: kvm struct pointer
|
||||
*/
|
||||
|
|
@ -428,7 +429,13 @@ int kvm_vgic_map_resources(struct kvm *kvm)
|
|||
struct vgic_dist *dist = &kvm->arch.vgic;
|
||||
int ret = 0;
|
||||
|
||||
if (likely(vgic_ready(kvm)))
|
||||
return 0;
|
||||
|
||||
mutex_lock(&kvm->lock);
|
||||
if (vgic_ready(kvm))
|
||||
goto out;
|
||||
|
||||
if (!irqchip_in_kernel(kvm))
|
||||
goto out;
|
||||
|
||||
|
|
@ -439,6 +446,8 @@ int kvm_vgic_map_resources(struct kvm *kvm)
|
|||
|
||||
if (ret)
|
||||
__kvm_vgic_destroy(kvm);
|
||||
else
|
||||
dist->ready = true;
|
||||
|
||||
out:
|
||||
mutex_unlock(&kvm->lock);
|
||||
|
|
|
|||
|
|
@ -306,20 +306,15 @@ int vgic_v2_map_resources(struct kvm *kvm)
|
|||
struct vgic_dist *dist = &kvm->arch.vgic;
|
||||
int ret = 0;
|
||||
|
||||
if (vgic_ready(kvm))
|
||||
goto out;
|
||||
|
||||
if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base) ||
|
||||
IS_VGIC_ADDR_UNDEF(dist->vgic_cpu_base)) {
|
||||
kvm_err("Need to set vgic cpu and dist addresses first\n");
|
||||
ret = -ENXIO;
|
||||
goto out;
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
if (!vgic_v2_check_base(dist->vgic_dist_base, dist->vgic_cpu_base)) {
|
||||
kvm_err("VGIC CPU and dist frames overlap\n");
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -329,13 +324,13 @@ int vgic_v2_map_resources(struct kvm *kvm)
|
|||
ret = vgic_init(kvm);
|
||||
if (ret) {
|
||||
kvm_err("Unable to initialize VGIC dynamic data structures\n");
|
||||
goto out;
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = vgic_register_dist_iodev(kvm, dist->vgic_dist_base, VGIC_V2);
|
||||
if (ret) {
|
||||
kvm_err("Unable to register VGIC MMIO regions\n");
|
||||
goto out;
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (!static_branch_unlikely(&vgic_v2_cpuif_trap)) {
|
||||
|
|
@ -344,14 +339,11 @@ int vgic_v2_map_resources(struct kvm *kvm)
|
|||
KVM_VGIC_V2_CPU_SIZE, true);
|
||||
if (ret) {
|
||||
kvm_err("Unable to remap VGIC CPU to VCPU\n");
|
||||
goto out;
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
dist->ready = true;
|
||||
|
||||
out:
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
DEFINE_STATIC_KEY_FALSE(vgic_v2_cpuif_trap);
|
||||
|
|
|
|||
|
|
@ -500,29 +500,23 @@ int vgic_v3_map_resources(struct kvm *kvm)
|
|||
int ret = 0;
|
||||
int c;
|
||||
|
||||
if (vgic_ready(kvm))
|
||||
goto out;
|
||||
|
||||
kvm_for_each_vcpu(c, vcpu, kvm) {
|
||||
struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
|
||||
|
||||
if (IS_VGIC_ADDR_UNDEF(vgic_cpu->rd_iodev.base_addr)) {
|
||||
kvm_debug("vcpu %d redistributor base not set\n", c);
|
||||
ret = -ENXIO;
|
||||
goto out;
|
||||
return -ENXIO;
|
||||
}
|
||||
}
|
||||
|
||||
if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base)) {
|
||||
kvm_err("Need to set vgic distributor addresses first\n");
|
||||
ret = -ENXIO;
|
||||
goto out;
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
if (!vgic_v3_check_base(kvm)) {
|
||||
kvm_err("VGIC redist and dist frames overlap\n");
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -530,22 +524,19 @@ int vgic_v3_map_resources(struct kvm *kvm)
|
|||
* the VGIC before we need to use it.
|
||||
*/
|
||||
if (!vgic_initialized(kvm)) {
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
ret = vgic_register_dist_iodev(kvm, dist->vgic_dist_base, VGIC_V3);
|
||||
if (ret) {
|
||||
kvm_err("Unable to register VGICv3 dist MMIO regions\n");
|
||||
goto out;
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (kvm_vgic_global_state.has_gicv4_1)
|
||||
vgic_v4_configure_vsgis(kvm);
|
||||
dist->ready = true;
|
||||
|
||||
out:
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
DEFINE_STATIC_KEY_FALSE(vgic_v3_cpuif_trap);
|
||||
|
|
|
|||
|
|
@ -59,7 +59,7 @@ EXPORT_SYMBOL(memstart_addr);
|
|||
* bit addressable memory area.
|
||||
*/
|
||||
phys_addr_t arm64_dma_phys_limit __ro_after_init;
|
||||
static phys_addr_t arm64_dma32_phys_limit __ro_after_init;
|
||||
phys_addr_t arm64_dma32_phys_limit __ro_after_init;
|
||||
|
||||
#ifdef CONFIG_KEXEC_CORE
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -46,7 +46,7 @@
|
|||
#endif
|
||||
|
||||
#ifdef CONFIG_KASAN_HW_TAGS
|
||||
#define TCR_KASAN_HW_FLAGS SYS_TCR_EL1_TCMA1 | TCR_TBI1
|
||||
#define TCR_KASAN_HW_FLAGS SYS_TCR_EL1_TCMA1 | TCR_TBI1 | TCR_TBID1
|
||||
#else
|
||||
#define TCR_KASAN_HW_FLAGS 0
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -2,7 +2,6 @@
|
|||
generic-y += asm-offsets.h
|
||||
generic-y += gpio.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += qrwlock.h
|
||||
generic-y += user.h
|
||||
generic-y += vmlinux.lds.h
|
||||
|
|
|
|||
|
|
@ -2,7 +2,6 @@
|
|||
generic-y += asm-offsets.h
|
||||
generic-y += extable.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += parport.h
|
||||
generic-y += spinlock.h
|
||||
|
|
|
|||
|
|
@ -2,5 +2,4 @@
|
|||
generic-y += extable.h
|
||||
generic-y += iomap.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
|
|
|
|||
|
|
@ -1 +0,0 @@
|
|||
#include <asm-generic/local64.h>
|
||||
|
|
@ -536,7 +536,7 @@ virtual_memmap_init(u64 start, u64 end, void *arg)
|
|||
|
||||
if (map_start < map_end)
|
||||
memmap_init_zone((unsigned long)(map_end - map_start),
|
||||
args->nid, args->zone, page_to_pfn(map_start),
|
||||
args->nid, args->zone, page_to_pfn(map_start), page_to_pfn(map_end),
|
||||
MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -546,7 +546,7 @@ memmap_init (unsigned long size, int nid, unsigned long zone,
|
|||
unsigned long start_pfn)
|
||||
{
|
||||
if (!vmem_map) {
|
||||
memmap_init_zone(size, nid, zone, start_pfn,
|
||||
memmap_init_zone(size, nid, zone, start_pfn, start_pfn + size,
|
||||
MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
|
||||
} else {
|
||||
struct page *start;
|
||||
|
|
|
|||
|
|
@ -2,6 +2,5 @@
|
|||
generated-y += syscall_table.h
|
||||
generic-y += extable.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += spinlock.h
|
||||
|
|
|
|||
|
|
@ -2,7 +2,6 @@
|
|||
generated-y += syscall_table.h
|
||||
generic-y += extable.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += parport.h
|
||||
generic-y += syscalls.h
|
||||
|
|
|
|||
|
|
@ -6,7 +6,6 @@ generated-y += syscall_table_64_n64.h
|
|||
generated-y += syscall_table_64_o32.h
|
||||
generic-y += export.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += parport.h
|
||||
generic-y += qrwlock.h
|
||||
|
|
|
|||
|
|
@ -4,6 +4,5 @@ generic-y += cmpxchg.h
|
|||
generic-y += export.h
|
||||
generic-y += gpio.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += parport.h
|
||||
generic-y += user.h
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
generic-y += extable.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += qspinlock_types.h
|
||||
generic-y += qspinlock.h
|
||||
|
|
|
|||
|
|
@ -3,6 +3,5 @@ generated-y += syscall_table_32.h
|
|||
generated-y += syscall_table_64.h
|
||||
generated-y += syscall_table_c32.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += user.h
|
||||
|
|
|
|||
|
|
@ -5,7 +5,6 @@ generated-y += syscall_table_c32.h
|
|||
generated-y += syscall_table_spu.h
|
||||
generic-y += export.h
|
||||
generic-y += kvm_types.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += qrwlock.h
|
||||
generic-y += vtime.h
|
||||
|
|
|
|||
|
|
@ -260,10 +260,19 @@ __secondary_hold_acknowledge:
|
|||
MachineCheck:
|
||||
EXCEPTION_PROLOG_0
|
||||
#ifdef CONFIG_PPC_CHRP
|
||||
#ifdef CONFIG_VMAP_STACK
|
||||
mtspr SPRN_SPRG_SCRATCH2,r1
|
||||
mfspr r1, SPRN_SPRG_THREAD
|
||||
lwz r1, RTAS_SP(r1)
|
||||
cmpwi cr1, r1, 0
|
||||
bne cr1, 7f
|
||||
mfspr r1, SPRN_SPRG_SCRATCH2
|
||||
#else
|
||||
mfspr r11, SPRN_SPRG_THREAD
|
||||
lwz r11, RTAS_SP(r11)
|
||||
cmpwi cr1, r11, 0
|
||||
bne cr1, 7f
|
||||
#endif
|
||||
#endif /* CONFIG_PPC_CHRP */
|
||||
EXCEPTION_PROLOG_1 for_rtas=1
|
||||
7: EXCEPTION_PROLOG_2
|
||||
|
|
|
|||
|
|
@ -85,7 +85,7 @@ SECTIONS
|
|||
ALIGN_FUNCTION();
|
||||
#endif
|
||||
/* careful! __ftr_alt_* sections need to be close to .text */
|
||||
*(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
|
||||
*(.text.hot .text.hot.* TEXT_MAIN .text.fixup .text.unlikely .text.unlikely.* .fixup __ftr_alt_* .ref.text);
|
||||
#ifdef CONFIG_PPC64
|
||||
*(.tramp.ftrace.text);
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -3,6 +3,5 @@ generic-y += early_ioremap.h
|
|||
generic-y += extable.h
|
||||
generic-y += flat.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += user.h
|
||||
generic-y += vmlinux.lds.h
|
||||
|
|
|
|||
|
|
@ -54,17 +54,23 @@ config KASAN_SHADOW_OFFSET
|
|||
|
||||
config S390
|
||||
def_bool y
|
||||
#
|
||||
# Note: keep this list sorted alphabetically
|
||||
#
|
||||
imply IMA_SECURE_AND_OR_TRUSTED_BOOT
|
||||
select ARCH_BINFMT_ELF_STATE
|
||||
select ARCH_HAS_DEBUG_VM_PGTABLE
|
||||
select ARCH_HAS_DEBUG_WX
|
||||
select ARCH_HAS_DEVMEM_IS_ALLOWED
|
||||
select ARCH_HAS_ELF_RANDOMIZE
|
||||
select ARCH_HAS_FORCE_DMA_UNENCRYPTED
|
||||
select ARCH_HAS_FORTIFY_SOURCE
|
||||
select ARCH_HAS_GCOV_PROFILE_ALL
|
||||
select ARCH_HAS_GIGANTIC_PAGE
|
||||
select ARCH_HAS_KCOV
|
||||
select ARCH_HAS_MEM_ENCRYPT
|
||||
select ARCH_HAS_PTE_SPECIAL
|
||||
select ARCH_HAS_SCALED_CPUTIME
|
||||
select ARCH_HAS_SET_MEMORY
|
||||
select ARCH_HAS_STRICT_KERNEL_RWX
|
||||
select ARCH_HAS_STRICT_MODULE_RWX
|
||||
|
|
@ -111,8 +117,10 @@ config S390
|
|||
select ARCH_WANT_IPC_PARSE_VERSION
|
||||
select BUILDTIME_TABLE_SORT
|
||||
select CLONE_BACKWARDS2
|
||||
select CPU_NO_EFFICIENT_FFS if !HAVE_MARCH_Z9_109_FEATURES
|
||||
select DMA_OPS if PCI
|
||||
select DYNAMIC_FTRACE if FUNCTION_TRACER
|
||||
select GENERIC_ALLOCATOR
|
||||
select GENERIC_CPU_AUTOPROBE
|
||||
select GENERIC_CPU_VULNERABILITIES
|
||||
select GENERIC_FIND_FIRST_BIT
|
||||
|
|
@ -126,22 +134,21 @@ config S390
|
|||
select HAVE_ARCH_JUMP_LABEL_RELATIVE
|
||||
select HAVE_ARCH_KASAN
|
||||
select HAVE_ARCH_KASAN_VMALLOC
|
||||
select CPU_NO_EFFICIENT_FFS if !HAVE_MARCH_Z9_109_FEATURES
|
||||
select HAVE_ARCH_SECCOMP_FILTER
|
||||
select HAVE_ARCH_SOFT_DIRTY
|
||||
select HAVE_ARCH_TRACEHOOK
|
||||
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
|
||||
select HAVE_ARCH_VMAP_STACK
|
||||
select HAVE_ASM_MODVERSIONS
|
||||
select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
|
||||
select HAVE_CMPXCHG_DOUBLE
|
||||
select HAVE_CMPXCHG_LOCAL
|
||||
select HAVE_DEBUG_KMEMLEAK
|
||||
select HAVE_DMA_CONTIGUOUS
|
||||
select HAVE_DYNAMIC_FTRACE
|
||||
select HAVE_DYNAMIC_FTRACE_WITH_REGS
|
||||
select HAVE_FAST_GUP
|
||||
select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
|
||||
select HAVE_EFFICIENT_UNALIGNED_ACCESS
|
||||
select HAVE_FAST_GUP
|
||||
select HAVE_FENTRY
|
||||
select HAVE_FTRACE_MCOUNT_RECORD
|
||||
select HAVE_FUNCTION_ERROR_INJECTION
|
||||
|
|
@ -163,16 +170,15 @@ config S390
|
|||
select HAVE_KRETPROBES
|
||||
select HAVE_KVM
|
||||
select HAVE_LIVEPATCH
|
||||
select HAVE_PERF_REGS
|
||||
select HAVE_PERF_USER_STACK_DUMP
|
||||
select HAVE_MEMBLOCK_PHYS_MAP
|
||||
select MMU_GATHER_NO_GATHER
|
||||
select HAVE_MOD_ARCH_SPECIFIC
|
||||
select HAVE_NMI
|
||||
select HAVE_NOP_MCOUNT
|
||||
select HAVE_OPROFILE
|
||||
select HAVE_PCI
|
||||
select HAVE_PERF_EVENTS
|
||||
select MMU_GATHER_RCU_TABLE_FREE
|
||||
select HAVE_PERF_REGS
|
||||
select HAVE_PERF_USER_STACK_DUMP
|
||||
select HAVE_REGS_AND_STACK_ACCESS_API
|
||||
select HAVE_RELIABLE_STACKTRACE
|
||||
select HAVE_RSEQ
|
||||
|
|
@ -181,6 +187,8 @@ config S390
|
|||
select HAVE_VIRT_CPU_ACCOUNTING_IDLE
|
||||
select IOMMU_HELPER if PCI
|
||||
select IOMMU_SUPPORT if PCI
|
||||
select MMU_GATHER_NO_GATHER
|
||||
select MMU_GATHER_RCU_TABLE_FREE
|
||||
select MODULES_USE_ELF_RELA
|
||||
select NEED_DMA_MAP_STATE if PCI
|
||||
select NEED_SG_DMA_LENGTH if PCI
|
||||
|
|
@ -190,17 +198,12 @@ config S390
|
|||
select PCI_MSI if PCI
|
||||
select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
|
||||
select SPARSE_IRQ
|
||||
select SWIOTLB
|
||||
select SYSCTL_EXCEPTION_TRACE
|
||||
select THREAD_INFO_IN_TASK
|
||||
select TTY
|
||||
select VIRT_CPU_ACCOUNTING
|
||||
select ARCH_HAS_SCALED_CPUTIME
|
||||
select HAVE_NMI
|
||||
select ARCH_HAS_FORCE_DMA_UNENCRYPTED
|
||||
select SWIOTLB
|
||||
select GENERIC_ALLOCATOR
|
||||
imply IMA_SECURE_AND_OR_TRUSTED_BOOT
|
||||
|
||||
# Note: keep the above list sorted alphabetically
|
||||
|
||||
config SCHED_OMIT_FRAME_POINTER
|
||||
def_bool y
|
||||
|
|
|
|||
|
|
@ -61,7 +61,9 @@ CONFIG_OPROFILE=m
|
|||
CONFIG_KPROBES=y
|
||||
CONFIG_JUMP_LABEL=y
|
||||
CONFIG_STATIC_KEYS_SELFTEST=y
|
||||
CONFIG_SECCOMP_CACHE_DEBUG=y
|
||||
CONFIG_LOCK_EVENT_COUNTS=y
|
||||
# CONFIG_GCC_PLUGINS is not set
|
||||
CONFIG_MODULES=y
|
||||
CONFIG_MODULE_FORCE_LOAD=y
|
||||
CONFIG_MODULE_UNLOAD=y
|
||||
|
|
@ -410,12 +412,12 @@ CONFIG_SCSI_ENCLOSURE=m
|
|||
CONFIG_SCSI_CONSTANTS=y
|
||||
CONFIG_SCSI_LOGGING=y
|
||||
CONFIG_SCSI_SPI_ATTRS=m
|
||||
CONFIG_SCSI_FC_ATTRS=y
|
||||
CONFIG_SCSI_FC_ATTRS=m
|
||||
CONFIG_SCSI_SAS_LIBSAS=m
|
||||
CONFIG_SCSI_SRP_ATTRS=m
|
||||
CONFIG_ISCSI_TCP=m
|
||||
CONFIG_SCSI_DEBUG=m
|
||||
CONFIG_ZFCP=y
|
||||
CONFIG_ZFCP=m
|
||||
CONFIG_SCSI_VIRTIO=m
|
||||
CONFIG_SCSI_DH=y
|
||||
CONFIG_SCSI_DH_RDAC=m
|
||||
|
|
@ -444,6 +446,7 @@ CONFIG_DM_MULTIPATH=m
|
|||
CONFIG_DM_MULTIPATH_QL=m
|
||||
CONFIG_DM_MULTIPATH_ST=m
|
||||
CONFIG_DM_MULTIPATH_HST=m
|
||||
CONFIG_DM_MULTIPATH_IOA=m
|
||||
CONFIG_DM_DELAY=m
|
||||
CONFIG_DM_UEVENT=y
|
||||
CONFIG_DM_FLAKEY=m
|
||||
|
|
@ -542,7 +545,6 @@ CONFIG_INPUT_EVDEV=y
|
|||
# CONFIG_INPUT_MOUSE is not set
|
||||
# CONFIG_SERIO is not set
|
||||
CONFIG_LEGACY_PTY_COUNT=0
|
||||
CONFIG_NULL_TTY=m
|
||||
CONFIG_VIRTIO_CONSOLE=y
|
||||
CONFIG_HW_RANDOM_VIRTIO=m
|
||||
CONFIG_RAW_DRIVER=m
|
||||
|
|
@ -574,6 +576,7 @@ CONFIG_VIRTIO_BALLOON=m
|
|||
CONFIG_VIRTIO_INPUT=y
|
||||
CONFIG_VHOST_NET=m
|
||||
CONFIG_VHOST_VSOCK=m
|
||||
# CONFIG_SURFACE_PLATFORMS is not set
|
||||
CONFIG_S390_CCW_IOMMU=y
|
||||
CONFIG_S390_AP_IOMMU=y
|
||||
CONFIG_EXT4_FS=y
|
||||
|
|
@ -655,6 +658,7 @@ CONFIG_CIFS_XATTR=y
|
|||
CONFIG_CIFS_POSIX=y
|
||||
# CONFIG_CIFS_DEBUG is not set
|
||||
CONFIG_CIFS_DFS_UPCALL=y
|
||||
CONFIG_CIFS_SWN_UPCALL=y
|
||||
CONFIG_NLS_DEFAULT="utf8"
|
||||
CONFIG_NLS_CODEPAGE_437=m
|
||||
CONFIG_NLS_CODEPAGE_850=m
|
||||
|
|
@ -826,6 +830,8 @@ CONFIG_FTRACE_SYSCALLS=y
|
|||
CONFIG_BLK_DEV_IO_TRACE=y
|
||||
CONFIG_BPF_KPROBE_OVERRIDE=y
|
||||
CONFIG_HIST_TRIGGERS=y
|
||||
CONFIG_FTRACE_STARTUP_TEST=y
|
||||
# CONFIG_EVENT_TRACE_STARTUP_TEST is not set
|
||||
CONFIG_DEBUG_USER_ASCE=y
|
||||
CONFIG_NOTIFIER_ERROR_INJECTION=m
|
||||
CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=m
|
||||
|
|
|
|||
|
|
@ -58,6 +58,7 @@ CONFIG_S390_UNWIND_SELFTEST=m
|
|||
CONFIG_OPROFILE=m
|
||||
CONFIG_KPROBES=y
|
||||
CONFIG_JUMP_LABEL=y
|
||||
# CONFIG_GCC_PLUGINS is not set
|
||||
CONFIG_MODULES=y
|
||||
CONFIG_MODULE_FORCE_LOAD=y
|
||||
CONFIG_MODULE_UNLOAD=y
|
||||
|
|
@ -95,7 +96,6 @@ CONFIG_ZSMALLOC_STAT=y
|
|||
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
|
||||
CONFIG_IDLE_PAGE_TRACKING=y
|
||||
CONFIG_PERCPU_STATS=y
|
||||
CONFIG_GUP_TEST=y
|
||||
CONFIG_NET=y
|
||||
CONFIG_PACKET=y
|
||||
CONFIG_PACKET_DIAG=m
|
||||
|
|
@ -403,12 +403,12 @@ CONFIG_SCSI_ENCLOSURE=m
|
|||
CONFIG_SCSI_CONSTANTS=y
|
||||
CONFIG_SCSI_LOGGING=y
|
||||
CONFIG_SCSI_SPI_ATTRS=m
|
||||
CONFIG_SCSI_FC_ATTRS=y
|
||||
CONFIG_SCSI_FC_ATTRS=m
|
||||
CONFIG_SCSI_SAS_LIBSAS=m
|
||||
CONFIG_SCSI_SRP_ATTRS=m
|
||||
CONFIG_ISCSI_TCP=m
|
||||
CONFIG_SCSI_DEBUG=m
|
||||
CONFIG_ZFCP=y
|
||||
CONFIG_ZFCP=m
|
||||
CONFIG_SCSI_VIRTIO=m
|
||||
CONFIG_SCSI_DH=y
|
||||
CONFIG_SCSI_DH_RDAC=m
|
||||
|
|
@ -437,6 +437,7 @@ CONFIG_DM_MULTIPATH=m
|
|||
CONFIG_DM_MULTIPATH_QL=m
|
||||
CONFIG_DM_MULTIPATH_ST=m
|
||||
CONFIG_DM_MULTIPATH_HST=m
|
||||
CONFIG_DM_MULTIPATH_IOA=m
|
||||
CONFIG_DM_DELAY=m
|
||||
CONFIG_DM_UEVENT=y
|
||||
CONFIG_DM_FLAKEY=m
|
||||
|
|
@ -536,7 +537,6 @@ CONFIG_INPUT_EVDEV=y
|
|||
# CONFIG_INPUT_MOUSE is not set
|
||||
# CONFIG_SERIO is not set
|
||||
CONFIG_LEGACY_PTY_COUNT=0
|
||||
CONFIG_NULL_TTY=m
|
||||
CONFIG_VIRTIO_CONSOLE=y
|
||||
CONFIG_HW_RANDOM_VIRTIO=m
|
||||
CONFIG_RAW_DRIVER=m
|
||||
|
|
@ -568,6 +568,7 @@ CONFIG_VIRTIO_BALLOON=m
|
|||
CONFIG_VIRTIO_INPUT=y
|
||||
CONFIG_VHOST_NET=m
|
||||
CONFIG_VHOST_VSOCK=m
|
||||
# CONFIG_SURFACE_PLATFORMS is not set
|
||||
CONFIG_S390_CCW_IOMMU=y
|
||||
CONFIG_S390_AP_IOMMU=y
|
||||
CONFIG_EXT4_FS=y
|
||||
|
|
@ -645,6 +646,7 @@ CONFIG_CIFS_XATTR=y
|
|||
CONFIG_CIFS_POSIX=y
|
||||
# CONFIG_CIFS_DEBUG is not set
|
||||
CONFIG_CIFS_DFS_UPCALL=y
|
||||
CONFIG_CIFS_SWN_UPCALL=y
|
||||
CONFIG_NLS_DEFAULT="utf8"
|
||||
CONFIG_NLS_CODEPAGE_437=m
|
||||
CONFIG_NLS_CODEPAGE_850=m
|
||||
|
|
@ -778,6 +780,7 @@ CONFIG_FTRACE_SYSCALLS=y
|
|||
CONFIG_BLK_DEV_IO_TRACE=y
|
||||
CONFIG_BPF_KPROBE_OVERRIDE=y
|
||||
CONFIG_HIST_TRIGGERS=y
|
||||
CONFIG_DEBUG_USER_ASCE=y
|
||||
CONFIG_LKDTM=m
|
||||
CONFIG_PERCPU_TEST=m
|
||||
CONFIG_ATOMIC64_SELFTEST=y
|
||||
|
|
|
|||
|
|
@ -22,6 +22,7 @@ CONFIG_CRASH_DUMP=y
|
|||
# CONFIG_VIRTUALIZATION is not set
|
||||
# CONFIG_S390_GUEST is not set
|
||||
# CONFIG_SECCOMP is not set
|
||||
# CONFIG_GCC_PLUGINS is not set
|
||||
CONFIG_PARTITION_ADVANCED=y
|
||||
CONFIG_IBM_PARTITION=y
|
||||
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
|
||||
|
|
@ -58,6 +59,7 @@ CONFIG_RAW_DRIVER=y
|
|||
# CONFIG_HID is not set
|
||||
# CONFIG_VIRTIO_MENU is not set
|
||||
# CONFIG_VHOST_MENU is not set
|
||||
# CONFIG_SURFACE_PLATFORMS is not set
|
||||
# CONFIG_IOMMU_SUPPORT is not set
|
||||
# CONFIG_DNOTIFY is not set
|
||||
# CONFIG_INOTIFY_USER is not set
|
||||
|
|
|
|||
|
|
@ -7,5 +7,4 @@ generated-y += unistd_nr.h
|
|||
generic-y += asm-offsets.h
|
||||
generic-y += export.h
|
||||
generic-y += kvm_types.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
|
|
|
|||
|
|
@ -1,6 +1,5 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
generated-y += syscall_table.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += parport.h
|
||||
|
|
|
|||
|
|
@ -6,5 +6,4 @@ generated-y += syscall_table_64.h
|
|||
generated-y += syscall_table_c32.h
|
||||
generic-y += export.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local64.h
|
||||
generic-y += mcs_spinlock.h
|
||||
|
|
|
|||
|
|
@ -19,6 +19,7 @@ config X86_32
|
|||
select KMAP_LOCAL
|
||||
select MODULES_USE_ELF_REL
|
||||
select OLD_SIGACTION
|
||||
select ARCH_SPLIT_ARG64
|
||||
|
||||
config X86_64
|
||||
def_bool y
|
||||
|
|
|
|||
|
|
@ -1010,9 +1010,21 @@ struct kvm_arch {
|
|||
*/
|
||||
bool tdp_mmu_enabled;
|
||||
|
||||
/* List of struct tdp_mmu_pages being used as roots */
|
||||
/*
|
||||
* List of struct kvmp_mmu_pages being used as roots.
|
||||
* All struct kvm_mmu_pages in the list should have
|
||||
* tdp_mmu_page set.
|
||||
* All struct kvm_mmu_pages in the list should have a positive
|
||||
* root_count except when a thread holds the MMU lock and is removing
|
||||
* an entry from the list.
|
||||
*/
|
||||
struct list_head tdp_mmu_roots;
|
||||
/* List of struct tdp_mmu_pages not being used as roots */
|
||||
|
||||
/*
|
||||
* List of struct kvmp_mmu_pages not being used as roots.
|
||||
* All struct kvm_mmu_pages in the list should have
|
||||
* tdp_mmu_page set and a root_count of 0.
|
||||
*/
|
||||
struct list_head tdp_mmu_pages;
|
||||
};
|
||||
|
||||
|
|
@ -1287,6 +1299,8 @@ struct kvm_x86_ops {
|
|||
void (*migrate_timers)(struct kvm_vcpu *vcpu);
|
||||
void (*msr_filter_changed)(struct kvm_vcpu *vcpu);
|
||||
int (*complete_emulated_msr)(struct kvm_vcpu *vcpu, int err);
|
||||
|
||||
void (*vcpu_deliver_sipi_vector)(struct kvm_vcpu *vcpu, u8 vector);
|
||||
};
|
||||
|
||||
struct kvm_x86_nested_ops {
|
||||
|
|
@ -1468,6 +1482,7 @@ int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in);
|
|||
int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
|
||||
int kvm_emulate_halt(struct kvm_vcpu *vcpu);
|
||||
int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
|
||||
int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu);
|
||||
int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
|
||||
|
||||
void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
|
||||
|
|
|
|||
|
|
@ -1 +0,0 @@
|
|||
#include <asm-generic/local64.h>
|
||||
|
|
@ -167,9 +167,6 @@ static u8 mtrr_type_lookup_variable(u64 start, u64 end, u64 *partial_end,
|
|||
*repeat = 0;
|
||||
*uniform = 1;
|
||||
|
||||
/* Make end inclusive instead of exclusive */
|
||||
end--;
|
||||
|
||||
prev_match = MTRR_TYPE_INVALID;
|
||||
for (i = 0; i < num_var_ranges; ++i) {
|
||||
unsigned short start_state, end_state, inclusive;
|
||||
|
|
@ -261,6 +258,9 @@ u8 mtrr_type_lookup(u64 start, u64 end, u8 *uniform)
|
|||
int repeat;
|
||||
u64 partial_end;
|
||||
|
||||
/* Make end inclusive instead of exclusive */
|
||||
end--;
|
||||
|
||||
if (!mtrr_state_set)
|
||||
return MTRR_TYPE_INVALID;
|
||||
|
||||
|
|
|
|||
|
|
@ -525,89 +525,70 @@ static void rdtgroup_remove(struct rdtgroup *rdtgrp)
|
|||
kfree(rdtgrp);
|
||||
}
|
||||
|
||||
struct task_move_callback {
|
||||
struct callback_head work;
|
||||
struct rdtgroup *rdtgrp;
|
||||
};
|
||||
|
||||
static void move_myself(struct callback_head *head)
|
||||
static void _update_task_closid_rmid(void *task)
|
||||
{
|
||||
struct task_move_callback *callback;
|
||||
struct rdtgroup *rdtgrp;
|
||||
|
||||
callback = container_of(head, struct task_move_callback, work);
|
||||
rdtgrp = callback->rdtgrp;
|
||||
|
||||
/*
|
||||
* If resource group was deleted before this task work callback
|
||||
* was invoked, then assign the task to root group and free the
|
||||
* resource group.
|
||||
* If the task is still current on this CPU, update PQR_ASSOC MSR.
|
||||
* Otherwise, the MSR is updated when the task is scheduled in.
|
||||
*/
|
||||
if (atomic_dec_and_test(&rdtgrp->waitcount) &&
|
||||
(rdtgrp->flags & RDT_DELETED)) {
|
||||
current->closid = 0;
|
||||
current->rmid = 0;
|
||||
rdtgroup_remove(rdtgrp);
|
||||
}
|
||||
if (task == current)
|
||||
resctrl_sched_in();
|
||||
}
|
||||
|
||||
if (unlikely(current->flags & PF_EXITING))
|
||||
goto out;
|
||||
|
||||
preempt_disable();
|
||||
/* update PQR_ASSOC MSR to make resource group go into effect */
|
||||
resctrl_sched_in();
|
||||
preempt_enable();
|
||||
|
||||
out:
|
||||
kfree(callback);
|
||||
static void update_task_closid_rmid(struct task_struct *t)
|
||||
{
|
||||
if (IS_ENABLED(CONFIG_SMP) && task_curr(t))
|
||||
smp_call_function_single(task_cpu(t), _update_task_closid_rmid, t, 1);
|
||||
else
|
||||
_update_task_closid_rmid(t);
|
||||
}
|
||||
|
||||
static int __rdtgroup_move_task(struct task_struct *tsk,
|
||||
struct rdtgroup *rdtgrp)
|
||||
{
|
||||
struct task_move_callback *callback;
|
||||
int ret;
|
||||
|
||||
callback = kzalloc(sizeof(*callback), GFP_KERNEL);
|
||||
if (!callback)
|
||||
return -ENOMEM;
|
||||
callback->work.func = move_myself;
|
||||
callback->rdtgrp = rdtgrp;
|
||||
/* If the task is already in rdtgrp, no need to move the task. */
|
||||
if ((rdtgrp->type == RDTCTRL_GROUP && tsk->closid == rdtgrp->closid &&
|
||||
tsk->rmid == rdtgrp->mon.rmid) ||
|
||||
(rdtgrp->type == RDTMON_GROUP && tsk->rmid == rdtgrp->mon.rmid &&
|
||||
tsk->closid == rdtgrp->mon.parent->closid))
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* Take a refcount, so rdtgrp cannot be freed before the
|
||||
* callback has been invoked.
|
||||
* Set the task's closid/rmid before the PQR_ASSOC MSR can be
|
||||
* updated by them.
|
||||
*
|
||||
* For ctrl_mon groups, move both closid and rmid.
|
||||
* For monitor groups, can move the tasks only from
|
||||
* their parent CTRL group.
|
||||
*/
|
||||
atomic_inc(&rdtgrp->waitcount);
|
||||
ret = task_work_add(tsk, &callback->work, TWA_RESUME);
|
||||
if (ret) {
|
||||
/*
|
||||
* Task is exiting. Drop the refcount and free the callback.
|
||||
* No need to check the refcount as the group cannot be
|
||||
* deleted before the write function unlocks rdtgroup_mutex.
|
||||
*/
|
||||
atomic_dec(&rdtgrp->waitcount);
|
||||
kfree(callback);
|
||||
rdt_last_cmd_puts("Task exited\n");
|
||||
} else {
|
||||
/*
|
||||
* For ctrl_mon groups move both closid and rmid.
|
||||
* For monitor groups, can move the tasks only from
|
||||
* their parent CTRL group.
|
||||
*/
|
||||
if (rdtgrp->type == RDTCTRL_GROUP) {
|
||||
tsk->closid = rdtgrp->closid;
|
||||
|
||||
if (rdtgrp->type == RDTCTRL_GROUP) {
|
||||
tsk->closid = rdtgrp->closid;
|
||||
tsk->rmid = rdtgrp->mon.rmid;
|
||||
} else if (rdtgrp->type == RDTMON_GROUP) {
|
||||
if (rdtgrp->mon.parent->closid == tsk->closid) {
|
||||
tsk->rmid = rdtgrp->mon.rmid;
|
||||
} else if (rdtgrp->type == RDTMON_GROUP) {
|
||||
if (rdtgrp->mon.parent->closid == tsk->closid) {
|
||||
tsk->rmid = rdtgrp->mon.rmid;
|
||||
} else {
|
||||
rdt_last_cmd_puts("Can't move task to different control group\n");
|
||||
ret = -EINVAL;
|
||||
}
|
||||
} else {
|
||||
rdt_last_cmd_puts("Can't move task to different control group\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* Ensure the task's closid and rmid are written before determining if
|
||||
* the task is current that will decide if it will be interrupted.
|
||||
*/
|
||||
barrier();
|
||||
|
||||
/*
|
||||
* By now, the task's closid and rmid are set. If the task is current
|
||||
* on a CPU, the PQR_ASSOC MSR needs to be updated to make the resource
|
||||
* group go into effect. If the task is not current, the MSR will be
|
||||
* updated when the task is scheduled in.
|
||||
*/
|
||||
update_task_closid_rmid(tsk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static bool is_closid_match(struct task_struct *t, struct rdtgroup *r)
|
||||
|
|
|
|||
|
|
@ -305,14 +305,14 @@ static enum es_result vc_ioio_exitinfo(struct es_em_ctxt *ctxt, u64 *exitinfo)
|
|||
case 0xe4:
|
||||
case 0xe5:
|
||||
*exitinfo |= IOIO_TYPE_IN;
|
||||
*exitinfo |= (u64)insn->immediate.value << 16;
|
||||
*exitinfo |= (u8)insn->immediate.value << 16;
|
||||
break;
|
||||
|
||||
/* OUT immediate opcodes */
|
||||
case 0xe6:
|
||||
case 0xe7:
|
||||
*exitinfo |= IOIO_TYPE_OUT;
|
||||
*exitinfo |= (u64)insn->immediate.value << 16;
|
||||
*exitinfo |= (u8)insn->immediate.value << 16;
|
||||
break;
|
||||
|
||||
/* IN register opcodes */
|
||||
|
|
|
|||
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Reference in New Issue