forked from Minki/linux
Merge drm/drm-next into drm-misc-next
We need commit f8f6ae5d07
("mm: always have io_remap_pfn_range() set
pgprot_decrypted()") to be able to merge Jason's cleanup patch.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
This commit is contained in:
commit
112e505a76
@ -1,29 +1,29 @@
|
||||
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap
|
||||
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap
|
||||
Date: December 3, 2009
|
||||
KernelVersion: 2.6.32
|
||||
Contact: dmaengine@vger.kernel.org
|
||||
Description: Capabilities the DMA supports.Currently there are DMA_PQ, DMA_PQ_VAL,
|
||||
DMA_XOR,DMA_XOR_VAL,DMA_INTERRUPT.
|
||||
|
||||
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active
|
||||
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active
|
||||
Date: December 3, 2009
|
||||
KernelVersion: 2.6.32
|
||||
Contact: dmaengine@vger.kernel.org
|
||||
Description: The number of descriptors active in the ring.
|
||||
|
||||
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size
|
||||
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size
|
||||
Date: December 3, 2009
|
||||
KernelVersion: 2.6.32
|
||||
Contact: dmaengine@vger.kernel.org
|
||||
Description: Descriptor ring size, total number of descriptors available.
|
||||
|
||||
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version
|
||||
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version
|
||||
Date: December 3, 2009
|
||||
KernelVersion: 2.6.32
|
||||
Contact: dmaengine@vger.kernel.org
|
||||
Description: Version of ioatdma device.
|
||||
|
||||
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce
|
||||
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce
|
||||
Date: August 8, 2017
|
||||
KernelVersion: 4.14
|
||||
Contact: dmaengine@vger.kernel.org
|
||||
|
@ -152,7 +152,7 @@ Description:
|
||||
When an interface is under test, it cannot be expected
|
||||
to pass packets as normal.
|
||||
|
||||
What: /sys/clas/net/<iface>/duplex
|
||||
What: /sys/class/net/<iface>/duplex
|
||||
Date: October 2009
|
||||
KernelVersion: 2.6.33
|
||||
Contact: netdev@vger.kernel.org
|
||||
|
@ -26,6 +26,10 @@ BUILDDIR = $(obj)/output
|
||||
PDFLATEX = xelatex
|
||||
LATEXOPTS = -interaction=batchmode
|
||||
|
||||
ifeq ($(KBUILD_VERBOSE),0)
|
||||
SPHINXOPTS += "-q"
|
||||
endif
|
||||
|
||||
# User-friendly check for sphinx-build
|
||||
HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
|
||||
|
||||
|
@ -107,7 +107,7 @@ for a UID/GID will prevent that UID/GID from obtaining auxiliary setid
|
||||
privileges, such as allowing a user to set up user namespace UID/GID mappings.
|
||||
|
||||
Note on GID policies and setgroups()
|
||||
==================
|
||||
====================================
|
||||
In v5.9 we are adding support for limiting CAP_SETGID privileges as was done
|
||||
previously for CAP_SETUID. However, for compatibility with common sandboxing
|
||||
related code conventions in userspace, we currently allow arbitrary
|
||||
|
@ -478,7 +478,7 @@ order to ask the hardware to enter that state. Also, for each
|
||||
statistics of the given idle state. That information is exposed by the kernel
|
||||
via ``sysfs``.
|
||||
|
||||
For each CPU in the system, there is a :file:`/sys/devices/system/cpu<N>/cpuidle/`
|
||||
For each CPU in the system, there is a :file:`/sys/devices/system/cpu/cpu<N>/cpuidle/`
|
||||
directory in ``sysfs``, where the number ``<N>`` is assigned to the given
|
||||
CPU at the initialization time. That directory contains a set of subdirectories
|
||||
called :file:`state0`, :file:`state1` and so on, up to the number of idle state
|
||||
@ -494,7 +494,7 @@ object corresponding to it, as follows:
|
||||
residency.
|
||||
|
||||
``below``
|
||||
Total number of times this idle state had been asked for, but cerainly
|
||||
Total number of times this idle state had been asked for, but certainly
|
||||
a deeper idle state would have been a better match for the observed idle
|
||||
duration.
|
||||
|
||||
|
@ -300,6 +300,7 @@ Note:
|
||||
0: 0 1 2 3 4 5 6 7
|
||||
RSS hash key:
|
||||
84:50:f4:00:a8:15:d1:a7:e9:7f:1d:60:35:c7:47:25:42:97:74:ca:56:bb:b6:a1:d8:43:e3:c9:0c:fd:17:55:c2:3a:4d:69:ed:f1:42:89
|
||||
|
||||
netdev_tstamp_prequeue
|
||||
----------------------
|
||||
|
||||
|
@ -148,3 +148,13 @@ SunXi family
|
||||
* User Manual
|
||||
|
||||
http://dl.linux-sunxi.org/A64/Allwinner%20A64%20User%20Manual%20v1.0.pdf
|
||||
|
||||
- Allwinner H6
|
||||
|
||||
* Datasheet
|
||||
|
||||
https://linux-sunxi.org/images/5/5c/Allwinner_H6_V200_Datasheet_V1.1.pdf
|
||||
|
||||
* User Manual
|
||||
|
||||
https://linux-sunxi.org/images/4/46/Allwinner_H6_V200_User_Manual_V1.1.pdf
|
||||
|
@ -51,7 +51,7 @@ if major >= 3:
|
||||
support for Sphinx v3.0 and above is brand new. Be prepared for
|
||||
possible issues in the generated output.
|
||||
''')
|
||||
if minor > 0 or patch >= 2:
|
||||
if (major > 3) or (minor > 0 or patch >= 2):
|
||||
# Sphinx c function parser is more pedantic with regards to type
|
||||
# checking. Due to that, having macros at c:function cause problems.
|
||||
# Those needed to be scaped by using c_id_attributes[] array
|
||||
|
@ -295,11 +295,13 @@ print the number of the test and the status of the test:
|
||||
pass::
|
||||
|
||||
ok 28 - kmalloc_double_kzfree
|
||||
|
||||
or, if kmalloc failed::
|
||||
|
||||
# kmalloc_large_oob_right: ASSERTION FAILED at lib/test_kasan.c:163
|
||||
Expected ptr is not null, but is
|
||||
not ok 4 - kmalloc_large_oob_right
|
||||
|
||||
or, if a KASAN report was expected, but not found::
|
||||
|
||||
# kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:629
|
||||
|
@ -197,7 +197,7 @@ Now add the following to ``drivers/misc/Kconfig``:
|
||||
|
||||
config MISC_EXAMPLE_TEST
|
||||
bool "Test for my example"
|
||||
depends on MISC_EXAMPLE && KUNIT
|
||||
depends on MISC_EXAMPLE && KUNIT=y
|
||||
|
||||
and the following to ``drivers/misc/Makefile``:
|
||||
|
||||
|
@ -561,6 +561,11 @@ Once the kernel is built and installed, a simple
|
||||
|
||||
...will run the tests.
|
||||
|
||||
.. note::
|
||||
Note that you should make sure your test depends on ``KUNIT=y`` in Kconfig
|
||||
if the test does not support module build. Otherwise, it will trigger
|
||||
compile errors if ``CONFIG_KUNIT`` is ``m``.
|
||||
|
||||
Writing new tests for other architectures
|
||||
-----------------------------------------
|
||||
|
||||
|
@ -4,7 +4,7 @@ Clock control registers reside in different Hi6220 system controllers,
|
||||
please refer the following document to know more about the binding rules
|
||||
for these system controllers:
|
||||
|
||||
Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
|
||||
Documentation/devicetree/bindings/arm/hisilicon/hisilicon.yaml
|
||||
|
||||
Required Properties:
|
||||
|
||||
|
@ -32,6 +32,11 @@ description: |
|
||||
| | vint | bit | | 0 |.....|63| vintx |
|
||||
| +--------------+ +------------+ |
|
||||
| |
|
||||
| Unmap |
|
||||
| +--------------+ |
|
||||
Unmapped events ---->| | umapidx |-------------------------> Globalevents
|
||||
| +--------------+ |
|
||||
| |
|
||||
+-----------------------------------------+
|
||||
|
||||
Configuration of these Intmap registers that maps global events to vint is
|
||||
@ -70,6 +75,11 @@ properties:
|
||||
- description: |
|
||||
"limit" specifies the limit for translation
|
||||
|
||||
ti,unmapped-event-sources:
|
||||
$ref: /schemas/types.yaml#definitions/phandle-array
|
||||
description:
|
||||
Array of phandles to DMA controllers where the unmapped events originate.
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
|
@ -0,0 +1,18 @@
|
||||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/net/can/can-controller.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: CAN Controller Generic Binding
|
||||
|
||||
maintainers:
|
||||
- Marc Kleine-Budde <mkl@pengutronix.de>
|
||||
|
||||
properties:
|
||||
$nodename:
|
||||
pattern: "^can(@.*)?$"
|
||||
|
||||
additionalProperties: true
|
||||
|
||||
...
|
135
Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
Normal file
135
Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
Normal file
@ -0,0 +1,135 @@
|
||||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/net/can/fsl,flexcan.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title:
|
||||
Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
|
||||
|
||||
maintainers:
|
||||
- Marc Kleine-Budde <mkl@pengutronix.de>
|
||||
|
||||
allOf:
|
||||
- $ref: can-controller.yaml#
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
oneOf:
|
||||
- enum:
|
||||
- fsl,imx8qm-flexcan
|
||||
- fsl,imx8mp-flexcan
|
||||
- fsl,imx6q-flexcan
|
||||
- fsl,imx53-flexcan
|
||||
- fsl,imx35-flexcan
|
||||
- fsl,imx28-flexcan
|
||||
- fsl,imx25-flexcan
|
||||
- fsl,p1010-flexcan
|
||||
- fsl,vf610-flexcan
|
||||
- fsl,ls1021ar2-flexcan
|
||||
- fsl,lx2160ar1-flexcan
|
||||
- items:
|
||||
- enum:
|
||||
- fsl,imx7d-flexcan
|
||||
- fsl,imx6ul-flexcan
|
||||
- fsl,imx6sx-flexcan
|
||||
- const: fsl,imx6q-flexcan
|
||||
- items:
|
||||
- enum:
|
||||
- fsl,ls1028ar1-flexcan
|
||||
- const: fsl,lx2160ar1-flexcan
|
||||
|
||||
reg:
|
||||
maxItems: 1
|
||||
|
||||
interrupts:
|
||||
maxItems: 1
|
||||
|
||||
clocks:
|
||||
maxItems: 2
|
||||
|
||||
clock-names:
|
||||
items:
|
||||
- const: ipg
|
||||
- const: per
|
||||
|
||||
clock-frequency:
|
||||
description: |
|
||||
The oscillator frequency driving the flexcan device, filled in by the
|
||||
boot loader. This property should only be used the used operating system
|
||||
doesn't support the clocks and clock-names property.
|
||||
|
||||
xceiver-supply:
|
||||
description: Regulator that powers the CAN transceiver.
|
||||
|
||||
big-endian:
|
||||
$ref: /schemas/types.yaml#/definitions/flag
|
||||
description: |
|
||||
This means the registers of FlexCAN controller are big endian. This is
|
||||
optional property.i.e. if this property is not present in device tree
|
||||
node then controller is assumed to be little endian. If this property is
|
||||
present then controller is assumed to be big endian.
|
||||
|
||||
fsl,stop-mode:
|
||||
description: |
|
||||
Register bits of stop mode control.
|
||||
|
||||
The format should be as follows:
|
||||
<gpr req_gpr req_bit>
|
||||
gpr is the phandle to general purpose register node.
|
||||
req_gpr is the gpr register offset of CAN stop request.
|
||||
req_bit is the bit offset of CAN stop request.
|
||||
$ref: /schemas/types.yaml#/definitions/phandle-array
|
||||
items:
|
||||
- description: The 'gpr' is the phandle to general purpose register node.
|
||||
- description: The 'req_gpr' is the gpr register offset of CAN stop request.
|
||||
maximum: 0xff
|
||||
- description: The 'req_bit' is the bit offset of CAN stop request.
|
||||
maximum: 0x1f
|
||||
|
||||
fsl,clk-source:
|
||||
description: |
|
||||
Select the clock source to the CAN Protocol Engine (PE). It's SoC
|
||||
implementation dependent. Refer to RM for detailed definition. If this
|
||||
property is not set in device tree node then driver selects clock source 1
|
||||
by default.
|
||||
0: clock source 0 (oscillator clock)
|
||||
1: clock source 1 (peripheral clock)
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
default: 1
|
||||
minimum: 0
|
||||
maximum: 1
|
||||
|
||||
wakeup-source:
|
||||
$ref: /schemas/types.yaml#/definitions/flag
|
||||
description:
|
||||
Enable CAN remote wakeup.
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
- interrupts
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
can@1c000 {
|
||||
compatible = "fsl,p1010-flexcan";
|
||||
reg = <0x1c000 0x1000>;
|
||||
interrupts = <48 0x2>;
|
||||
interrupt-parent = <&mpic>;
|
||||
clock-frequency = <200000000>;
|
||||
fsl,clk-source = <0>;
|
||||
};
|
||||
- |
|
||||
#include <dt-bindings/interrupt-controller/irq.h>
|
||||
|
||||
can@2090000 {
|
||||
compatible = "fsl,imx6q-flexcan";
|
||||
reg = <0x02090000 0x4000>;
|
||||
interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&clks 1>, <&clks 2>;
|
||||
clock-names = "ipg", "per";
|
||||
fsl,stop-mode = <&gpr 0x34 28>;
|
||||
};
|
@ -1,57 +0,0 @@
|
||||
Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
|
||||
|
||||
Required properties:
|
||||
|
||||
- compatible : Should be "fsl,<processor>-flexcan"
|
||||
|
||||
where <processor> is imx8qm, imx6q, imx28, imx53, imx35, imx25, p1010,
|
||||
vf610, ls1021ar2, lx2160ar1, ls1028ar1.
|
||||
|
||||
The ls1028ar1 must be followed by lx2160ar1, e.g.
|
||||
- "fsl,ls1028ar1-flexcan", "fsl,lx2160ar1-flexcan"
|
||||
|
||||
An implementation should also claim any of the following compatibles
|
||||
that it is fully backwards compatible with:
|
||||
|
||||
- fsl,p1010-flexcan
|
||||
|
||||
- reg : Offset and length of the register set for this device
|
||||
- interrupts : Interrupt tuple for this device
|
||||
|
||||
Optional properties:
|
||||
|
||||
- clock-frequency : The oscillator frequency driving the flexcan device
|
||||
|
||||
- xceiver-supply: Regulator that powers the CAN transceiver
|
||||
|
||||
- big-endian: This means the registers of FlexCAN controller are big endian.
|
||||
This is optional property.i.e. if this property is not present in
|
||||
device tree node then controller is assumed to be little endian.
|
||||
if this property is present then controller is assumed to be big
|
||||
endian.
|
||||
|
||||
- fsl,stop-mode: register bits of stop mode control, the format is
|
||||
<&gpr req_gpr req_bit>.
|
||||
gpr is the phandle to general purpose register node.
|
||||
req_gpr is the gpr register offset of CAN stop request.
|
||||
req_bit is the bit offset of CAN stop request.
|
||||
|
||||
- fsl,clk-source: Select the clock source to the CAN Protocol Engine (PE).
|
||||
It's SoC Implementation dependent. Refer to RM for detailed
|
||||
definition. If this property is not set in device tree node
|
||||
then driver selects clock source 1 by default.
|
||||
0: clock source 0 (oscillator clock)
|
||||
1: clock source 1 (peripheral clock)
|
||||
|
||||
- wakeup-source: enable CAN remote wakeup
|
||||
|
||||
Example:
|
||||
|
||||
can@1c000 {
|
||||
compatible = "fsl,p1010-flexcan";
|
||||
reg = <0x1c000 0x1000>;
|
||||
interrupts = <48 0x2>;
|
||||
interrupt-parent = <&mpic>;
|
||||
clock-frequency = <200000000>; // filled in by bootloader
|
||||
fsl,clk-source = <0>; // select clock source 0 for PE
|
||||
};
|
@ -86,9 +86,6 @@ Other Functions
|
||||
.. kernel-doc:: fs/dax.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: fs/direct-io.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: fs/libfs.c
|
||||
:export:
|
||||
|
||||
|
@ -83,10 +83,6 @@ AMDGPU XGMI Support
|
||||
===================
|
||||
|
||||
.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
|
||||
:doc: AMDGPU XGMI Support
|
||||
|
||||
.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
|
||||
:internal:
|
||||
|
||||
AMDGPU RAS Support
|
||||
==================
|
||||
@ -124,9 +120,6 @@ RAS VRAM Bad Pages sysfs Interface
|
||||
.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
|
||||
:doc: AMDGPU RAS sysfs gpu_vram_bad_pages Interface
|
||||
|
||||
.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
|
||||
:internal:
|
||||
|
||||
Sample Code
|
||||
-----------
|
||||
Sample code for testing error injection can be found here:
|
||||
|
@ -118,6 +118,12 @@ Atomic Plane Helpers
|
||||
.. kernel-doc:: drivers/gpu/drm/i915/display/intel_atomic_plane.c
|
||||
:internal:
|
||||
|
||||
Asynchronous Page Flip
|
||||
----------------------
|
||||
|
||||
.. kernel-doc:: drivers/gpu/drm/i915/display/intel_display.c
|
||||
:doc: asynchronous flip implementation
|
||||
|
||||
Output Probing
|
||||
--------------
|
||||
|
||||
|
@ -20,7 +20,7 @@ ADM1266 is a sequencer that features voltage readback from 17 channels via an
|
||||
integrated 12 bit SAR ADC, accessed using a PMBus interface.
|
||||
|
||||
The driver is a client driver to the core PMBus driver. Please see
|
||||
Documentation/hwmon/pmbus for details on PMBus client drivers.
|
||||
Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
|
||||
|
||||
|
||||
Sysfs entries
|
||||
|
@ -132,6 +132,7 @@ Hardware Monitoring Kernel Drivers
|
||||
mcp3021
|
||||
menf21bmc
|
||||
mlxreg-fan
|
||||
mp2975
|
||||
nct6683
|
||||
nct6775
|
||||
nct7802
|
||||
|
@ -20,6 +20,7 @@ This driver implements support for Monolithic Power Systems, Inc. (MPS)
|
||||
vendor dual-loop, digital, multi-phase controller MP2975.
|
||||
|
||||
This device:
|
||||
|
||||
- Supports up to two power rail.
|
||||
- Provides 8 pulse-width modulations (PWMs), and can be configured up
|
||||
to 8-phase operation for rail 1 and up to 4-phase operation for rail
|
||||
@ -32,10 +33,12 @@ This device:
|
||||
10-mV DAC, IMVP9 mode with 5-mV DAC.
|
||||
|
||||
Device supports:
|
||||
|
||||
- SVID interface.
|
||||
- AVSBus interface.
|
||||
|
||||
Device complaint with:
|
||||
|
||||
- PMBus rev 1.3 interface.
|
||||
|
||||
Device supports direct format for reading output current, output voltage,
|
||||
@ -45,11 +48,14 @@ Device supports VID and direct formats for reading output voltage.
|
||||
The below VID modes are supported: VR12, VR13, IMVP9.
|
||||
|
||||
The driver provides the next attributes for the current:
|
||||
|
||||
- for current in: input, maximum alarm;
|
||||
- for current out input, maximum alarm and highest values;
|
||||
- for phase current: input and label.
|
||||
attributes.
|
||||
attributes.
|
||||
|
||||
The driver exports the following attributes via the 'sysfs' files, where
|
||||
|
||||
- 'n' is number of telemetry pages (from 1 to 2);
|
||||
- 'k' is number of configured phases (from 1 to 8);
|
||||
- indexes 1, 1*n for "iin";
|
||||
@ -65,11 +71,14 @@ The driver exports the following attributes via the 'sysfs' files, where
|
||||
**curr[1-{2n+k}]_label**
|
||||
|
||||
The driver provides the next attributes for the voltage:
|
||||
|
||||
- for voltage in: input, high critical threshold, high critical alarm, all only
|
||||
from page 0;
|
||||
- for voltage out: input, low and high critical thresholds, low and high
|
||||
critical alarms, from pages 0 and 1;
|
||||
|
||||
The driver exports the following attributes via the 'sysfs' files, where
|
||||
|
||||
- 'n' is number of telemetry pages (from 1 to 2);
|
||||
- indexes 1 for "iin";
|
||||
- indexes n+1, n+2 for "vout";
|
||||
@ -87,9 +96,12 @@ The driver exports the following attributes via the 'sysfs' files, where
|
||||
**in[2-{n+1}1_lcrit_alarm**
|
||||
|
||||
The driver provides the next attributes for the power:
|
||||
|
||||
- for power in alarm and input.
|
||||
- for power out: highest and input.
|
||||
|
||||
The driver exports the following attributes via the 'sysfs' files, where
|
||||
|
||||
- 'n' is number of telemetry pages (from 1 to 2);
|
||||
- indexes 1 for "pin";
|
||||
- indexes n+1, n+2 for "pout";
|
||||
|
@ -25,3 +25,4 @@ LEDs
|
||||
leds-lp5562
|
||||
leds-lp55xx
|
||||
leds-mlxcpld
|
||||
leds-sc27xx
|
||||
|
@ -42,6 +42,7 @@ The validator tracks lock-class usage history and divides the usage into
|
||||
(4 usages * n STATEs + 1) categories:
|
||||
|
||||
where the 4 usages can be:
|
||||
|
||||
- 'ever held in STATE context'
|
||||
- 'ever held as readlock in STATE context'
|
||||
- 'ever held with STATE enabled'
|
||||
@ -49,10 +50,12 @@ where the 4 usages can be:
|
||||
|
||||
where the n STATEs are coded in kernel/locking/lockdep_states.h and as of
|
||||
now they include:
|
||||
|
||||
- hardirq
|
||||
- softirq
|
||||
|
||||
where the last 1 category is:
|
||||
|
||||
- 'ever used' [ == !unused ]
|
||||
|
||||
When locking rules are violated, these usage bits are presented in the
|
||||
@ -96,9 +99,9 @@ exact case is for the lock as of the reporting time.
|
||||
+--------------+-------------+--------------+
|
||||
| | irq enabled | irq disabled |
|
||||
+--------------+-------------+--------------+
|
||||
| ever in irq | ? | - |
|
||||
| ever in irq | '?' | '-' |
|
||||
+--------------+-------------+--------------+
|
||||
| never in irq | + | . |
|
||||
| never in irq | '+' | '.' |
|
||||
+--------------+-------------+--------------+
|
||||
|
||||
The character '-' suggests irq is disabled because if otherwise the
|
||||
@ -216,7 +219,7 @@ looks like this::
|
||||
BD_MUTEX_PARTITION
|
||||
};
|
||||
|
||||
mutex_lock_nested(&bdev->bd_contains->bd_mutex, BD_MUTEX_PARTITION);
|
||||
mutex_lock_nested(&bdev->bd_contains->bd_mutex, BD_MUTEX_PARTITION);
|
||||
|
||||
In this case the locking is done on a bdev object that is known to be a
|
||||
partition.
|
||||
@ -334,7 +337,7 @@ Troubleshooting:
|
||||
----------------
|
||||
|
||||
The validator tracks a maximum of MAX_LOCKDEP_KEYS number of lock classes.
|
||||
Exceeding this number will trigger the following lockdep warning:
|
||||
Exceeding this number will trigger the following lockdep warning::
|
||||
|
||||
(DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS))
|
||||
|
||||
@ -420,7 +423,8 @@ the critical section of another reader of the same lock instance.
|
||||
|
||||
The difference between recursive readers and non-recursive readers is because:
|
||||
recursive readers get blocked only by a write lock *holder*, while non-recursive
|
||||
readers could get blocked by a write lock *waiter*. Considering the follow example:
|
||||
readers could get blocked by a write lock *waiter*. Considering the follow
|
||||
example::
|
||||
|
||||
TASK A: TASK B:
|
||||
|
||||
@ -448,20 +452,22 @@ There are simply four block conditions:
|
||||
|
||||
Block condition matrix, Y means the row blocks the column, and N means otherwise.
|
||||
|
||||
| E | r | R |
|
||||
+---+---+---+---+
|
||||
E | Y | Y | Y |
|
||||
| | E | r | R |
|
||||
+---+---+---+---+
|
||||
r | Y | Y | N |
|
||||
| E | Y | Y | Y |
|
||||
+---+---+---+---+
|
||||
| r | Y | Y | N |
|
||||
+---+---+---+---+
|
||||
| R | Y | Y | N |
|
||||
+---+---+---+---+
|
||||
R | Y | Y | N |
|
||||
|
||||
(W: writers, r: non-recursive readers, R: recursive readers)
|
||||
|
||||
|
||||
acquired recursively. Unlike non-recursive read locks, recursive read locks
|
||||
only get blocked by current write lock *holders* other than write lock
|
||||
*waiters*, for example:
|
||||
*waiters*, for example::
|
||||
|
||||
TASK A: TASK B:
|
||||
|
||||
@ -491,7 +497,7 @@ Recursive locks don't block each other, while non-recursive locks do (this is
|
||||
even true for two non-recursive read locks). A non-recursive lock can block the
|
||||
corresponding recursive lock, and vice versa.
|
||||
|
||||
A deadlock case with recursive locks involved is as follow:
|
||||
A deadlock case with recursive locks involved is as follow::
|
||||
|
||||
TASK A: TASK B:
|
||||
|
||||
@ -510,7 +516,7 @@ because there are 3 types for lockers, there are, in theory, 9 types of lock
|
||||
dependencies, but we can show that 4 types of lock dependencies are enough for
|
||||
deadlock detection.
|
||||
|
||||
For each lock dependency:
|
||||
For each lock dependency::
|
||||
|
||||
L1 -> L2
|
||||
|
||||
@ -525,20 +531,25 @@ same types).
|
||||
With the above combination for simplification, there are 4 types of dependency edges
|
||||
in the lockdep graph:
|
||||
|
||||
1) -(ER)->: exclusive writer to recursive reader dependency, "X -(ER)-> Y" means
|
||||
1) -(ER)->:
|
||||
exclusive writer to recursive reader dependency, "X -(ER)-> Y" means
|
||||
X -> Y and X is a writer and Y is a recursive reader.
|
||||
|
||||
2) -(EN)->: exclusive writer to non-recursive locker dependency, "X -(EN)-> Y" means
|
||||
2) -(EN)->:
|
||||
exclusive writer to non-recursive locker dependency, "X -(EN)-> Y" means
|
||||
X -> Y and X is a writer and Y is either a writer or non-recursive reader.
|
||||
|
||||
3) -(SR)->: shared reader to recursive reader dependency, "X -(SR)-> Y" means
|
||||
3) -(SR)->:
|
||||
shared reader to recursive reader dependency, "X -(SR)-> Y" means
|
||||
X -> Y and X is a reader (recursive or not) and Y is a recursive reader.
|
||||
|
||||
4) -(SN)->: shared reader to non-recursive locker dependency, "X -(SN)-> Y" means
|
||||
4) -(SN)->:
|
||||
shared reader to non-recursive locker dependency, "X -(SN)-> Y" means
|
||||
X -> Y and X is a reader (recursive or not) and Y is either a writer or
|
||||
non-recursive reader.
|
||||
|
||||
Note that given two locks, they may have multiple dependencies between them, for example:
|
||||
Note that given two locks, they may have multiple dependencies between them,
|
||||
for example::
|
||||
|
||||
TASK A:
|
||||
|
||||
@ -592,11 +603,11 @@ circles that won't cause deadlocks.
|
||||
|
||||
Proof for sufficiency (Lemma 1):
|
||||
|
||||
Let's say we have a strong circle:
|
||||
Let's say we have a strong circle::
|
||||
|
||||
L1 -> L2 ... -> Ln -> L1
|
||||
|
||||
, which means we have dependencies:
|
||||
, which means we have dependencies::
|
||||
|
||||
L1 -> L2
|
||||
L2 -> L3
|
||||
@ -633,7 +644,7 @@ a lock held by P2, and P2 is waiting for a lock held by P3, ... and Pn is waitin
|
||||
for a lock held by P1. Let's name the lock Px is waiting as Lx, so since P1 is waiting
|
||||
for L1 and holding Ln, so we will have Ln -> L1 in the dependency graph. Similarly,
|
||||
we have L1 -> L2, L2 -> L3, ..., Ln-1 -> Ln in the dependency graph, which means we
|
||||
have a circle:
|
||||
have a circle::
|
||||
|
||||
Ln -> L1 -> L2 -> ... -> Ln
|
||||
|
||||
|
@ -24,7 +24,6 @@ fit into other categories.
|
||||
isl29003
|
||||
lis3lv02d
|
||||
max6875
|
||||
mic/index
|
||||
pci-endpoint-test
|
||||
spear-pcie-gadget
|
||||
uacce
|
||||
|
@ -70,6 +70,7 @@ The ``ice`` driver reports the following versions
|
||||
that both the name (as reported by ``fw.app.name``) and version are
|
||||
required to uniquely identify the package.
|
||||
* - ``fw.app.bundle_id``
|
||||
- running
|
||||
- 0xc0000001
|
||||
- Unique identifier for the DDP package loaded in the device. Also
|
||||
referred to as the DDP Track ID. Can be used to uniquely identify
|
||||
|
@ -10,9 +10,9 @@ Overview / What Is J1939
|
||||
SAE J1939 defines a higher layer protocol on CAN. It implements a more
|
||||
sophisticated addressing scheme and extends the maximum packet size above 8
|
||||
bytes. Several derived specifications exist, which differ from the original
|
||||
J1939 on the application level, like MilCAN A, NMEA2000 and especially
|
||||
J1939 on the application level, like MilCAN A, NMEA2000, and especially
|
||||
ISO-11783 (ISOBUS). This last one specifies the so-called ETP (Extended
|
||||
Transport Protocol) which is has been included in this implementation. This
|
||||
Transport Protocol), which has been included in this implementation. This
|
||||
results in a maximum packet size of ((2 ^ 24) - 1) * 7 bytes == 111 MiB.
|
||||
|
||||
Specifications used
|
||||
@ -32,15 +32,15 @@ sockets, we found some reasons to justify a kernel implementation for the
|
||||
addressing and transport methods used by J1939.
|
||||
|
||||
* **Addressing:** when a process on an ECU communicates via J1939, it should
|
||||
not necessarily know its source address. Although at least one process per
|
||||
not necessarily know its source address. Although, at least one process per
|
||||
ECU should know the source address. Other processes should be able to reuse
|
||||
that address. This way, address parameters for different processes
|
||||
cooperating for the same ECU, are not duplicated. This way of working is
|
||||
closely related to the UNIX concept where programs do just one thing, and do
|
||||
closely related to the UNIX concept, where programs do just one thing and do
|
||||
it well.
|
||||
|
||||
* **Dynamic addressing:** Address Claiming in J1939 is time critical.
|
||||
Furthermore data transport should be handled properly during the address
|
||||
Furthermore, data transport should be handled properly during the address
|
||||
negotiation. Putting this functionality in the kernel eliminates it as a
|
||||
requirement for _every_ user space process that communicates via J1939. This
|
||||
results in a consistent J1939 bus with proper addressing.
|
||||
@ -58,7 +58,7 @@ Therefore, these parts are left to user space.
|
||||
|
||||
The J1939 sockets operate on CAN network devices (see SocketCAN). Any J1939
|
||||
user space library operating on CAN raw sockets will still operate properly.
|
||||
Since such library does not communicate with the in-kernel implementation, care
|
||||
Since such a library does not communicate with the in-kernel implementation, care
|
||||
must be taken that these two do not interfere. In practice, this means they
|
||||
cannot share ECU addresses. A single ECU (or virtual ECU) address is used by
|
||||
the library exclusively, or by the in-kernel system exclusively.
|
||||
@ -77,13 +77,13 @@ is composed as follows:
|
||||
8 bits : PS (PDU Specific)
|
||||
|
||||
In J1939-21 distinction is made between PDU1 format (where PF < 240) and PDU2
|
||||
format (where PF >= 240). Furthermore, when using PDU2 format, the PS-field
|
||||
format (where PF >= 240). Furthermore, when using the PDU2 format, the PS-field
|
||||
contains a so-called Group Extension, which is part of the PGN. When using PDU2
|
||||
format, the Group Extension is set in the PS-field.
|
||||
|
||||
On the other hand, when using PDU1 format, the PS-field contains a so-called
|
||||
Destination Address, which is _not_ part of the PGN. When communicating a PGN
|
||||
from user space to kernel (or visa versa) and PDU2 format is used, the PS-field
|
||||
from user space to kernel (or vice versa) and PDU2 format is used, the PS-field
|
||||
of the PGN shall be set to zero. The Destination Address shall be set
|
||||
elsewhere.
|
||||
|
||||
@ -96,15 +96,15 @@ Addressing
|
||||
|
||||
Both static and dynamic addressing methods can be used.
|
||||
|
||||
For static addresses, no extra checks are made by the kernel, and provided
|
||||
For static addresses, no extra checks are made by the kernel and provided
|
||||
addresses are considered right. This responsibility is for the OEM or system
|
||||
integrator.
|
||||
|
||||
For dynamic addressing, so-called Address Claiming, extra support is foreseen
|
||||
in the kernel. In J1939 any ECU is known by it's 64-bit NAME. At the moment of
|
||||
in the kernel. In J1939 any ECU is known by its 64-bit NAME. At the moment of
|
||||
a successful address claim, the kernel keeps track of both NAME and source
|
||||
address being claimed. This serves as a base for filter schemes. By default,
|
||||
packets with a destination that is not locally, will be rejected.
|
||||
packets with a destination that is not locally will be rejected.
|
||||
|
||||
Mixed mode packets (from a static to a dynamic address or vice versa) are
|
||||
allowed. The BSD sockets define separate API calls for getting/setting the
|
||||
@ -131,31 +131,31 @@ API Calls
|
||||
---------
|
||||
|
||||
On CAN, you first need to open a socket for communicating over a CAN network.
|
||||
To use J1939, #include <linux/can/j1939.h>. From there, <linux/can.h> will be
|
||||
To use J1939, ``#include <linux/can/j1939.h>``. From there, ``<linux/can.h>`` will be
|
||||
included too. To open a socket, use:
|
||||
|
||||
.. code-block:: C
|
||||
|
||||
s = socket(PF_CAN, SOCK_DGRAM, CAN_J1939);
|
||||
|
||||
J1939 does use SOCK_DGRAM sockets. In the J1939 specification, connections are
|
||||
J1939 does use ``SOCK_DGRAM`` sockets. In the J1939 specification, connections are
|
||||
mentioned in the context of transport protocol sessions. These still deliver
|
||||
packets to the other end (using several CAN packets). SOCK_STREAM is not
|
||||
packets to the other end (using several CAN packets). ``SOCK_STREAM`` is not
|
||||
supported.
|
||||
|
||||
After the successful creation of the socket, you would normally use the bind(2)
|
||||
and/or connect(2) system call to bind the socket to a CAN interface. After
|
||||
binding and/or connecting the socket, you can read(2) and write(2) from/to the
|
||||
socket or use send(2), sendto(2), sendmsg(2) and the recv*() counterpart
|
||||
After the successful creation of the socket, you would normally use the ``bind(2)``
|
||||
and/or ``connect(2)`` system call to bind the socket to a CAN interface. After
|
||||
binding and/or connecting the socket, you can ``read(2)`` and ``write(2)`` from/to the
|
||||
socket or use ``send(2)``, ``sendto(2)``, ``sendmsg(2)`` and the ``recv*()`` counterpart
|
||||
operations on the socket as usual. There are also J1939 specific socket options
|
||||
described below.
|
||||
|
||||
In order to send data, a bind(2) must have been successful. bind(2) assigns a
|
||||
In order to send data, a ``bind(2)`` must have been successful. ``bind(2)`` assigns a
|
||||
local address to a socket.
|
||||
|
||||
Different from CAN is that the payload data is just the data that get send,
|
||||
without it's header info. The header info is derived from the sockaddr supplied
|
||||
to bind(2), connect(2), sendto(2) and recvfrom(2). A write(2) with size 4 will
|
||||
Different from CAN is that the payload data is just the data that get sends,
|
||||
without its header info. The header info is derived from the sockaddr supplied
|
||||
to ``bind(2)``, ``connect(2)``, ``sendto(2)`` and ``recvfrom(2)``. A ``write(2)`` with size 4 will
|
||||
result in a packet with 4 bytes.
|
||||
|
||||
The sockaddr structure has extensions for use with J1939 as specified below:
|
||||
@ -180,47 +180,47 @@ The sockaddr structure has extensions for use with J1939 as specified below:
|
||||
} can_addr;
|
||||
}
|
||||
|
||||
can_family & can_ifindex serve the same purpose as for other SocketCAN sockets.
|
||||
``can_family`` & ``can_ifindex`` serve the same purpose as for other SocketCAN sockets.
|
||||
|
||||
can_addr.j1939.pgn specifies the PGN (max 0x3ffff). Individual bits are
|
||||
``can_addr.j1939.pgn`` specifies the PGN (max 0x3ffff). Individual bits are
|
||||
specified above.
|
||||
|
||||
can_addr.j1939.name contains the 64-bit J1939 NAME.
|
||||
``can_addr.j1939.name`` contains the 64-bit J1939 NAME.
|
||||
|
||||
can_addr.j1939.addr contains the address.
|
||||
``can_addr.j1939.addr`` contains the address.
|
||||
|
||||
The bind(2) system call assigns the local address, i.e. the source address when
|
||||
sending packages. If a PGN during bind(2) is set, it's used as a RX filter.
|
||||
I.e. only packets with a matching PGN are received. If an ADDR or NAME is set
|
||||
The ``bind(2)`` system call assigns the local address, i.e. the source address when
|
||||
sending packages. If a PGN during ``bind(2)`` is set, it's used as a RX filter.
|
||||
I.e. only packets with a matching PGN are received. If an ADDR or NAME is set
|
||||
it is used as a receive filter, too. It will match the destination NAME or ADDR
|
||||
of the incoming packet. The NAME filter will work only if appropriate Address
|
||||
Claiming for this name was done on the CAN bus and registered/cached by the
|
||||
kernel.
|
||||
|
||||
On the other hand connect(2) assigns the remote address, i.e. the destination
|
||||
address. The PGN from connect(2) is used as the default PGN when sending
|
||||
On the other hand ``connect(2)`` assigns the remote address, i.e. the destination
|
||||
address. The PGN from ``connect(2)`` is used as the default PGN when sending
|
||||
packets. If ADDR or NAME is set it will be used as the default destination ADDR
|
||||
or NAME. Further a set ADDR or NAME during connect(2) is used as a receive
|
||||
or NAME. Further a set ADDR or NAME during ``connect(2)`` is used as a receive
|
||||
filter. It will match the source NAME or ADDR of the incoming packet.
|
||||
|
||||
Both write(2) and send(2) will send a packet with local address from bind(2) and
|
||||
the remote address from connect(2). Use sendto(2) to overwrite the destination
|
||||
Both ``write(2)`` and ``send(2)`` will send a packet with local address from ``bind(2)`` and the
|
||||
remote address from ``connect(2)``. Use ``sendto(2)`` to overwrite the destination
|
||||
address.
|
||||
|
||||
If can_addr.j1939.name is set (!= 0) the NAME is looked up by the kernel and
|
||||
the corresponding ADDR is used. If can_addr.j1939.name is not set (== 0),
|
||||
can_addr.j1939.addr is used.
|
||||
If ``can_addr.j1939.name`` is set (!= 0) the NAME is looked up by the kernel and
|
||||
the corresponding ADDR is used. If ``can_addr.j1939.name`` is not set (== 0),
|
||||
``can_addr.j1939.addr`` is used.
|
||||
|
||||
When creating a socket, reasonable defaults are set. Some options can be
|
||||
modified with setsockopt(2) & getsockopt(2).
|
||||
modified with ``setsockopt(2)`` & ``getsockopt(2)``.
|
||||
|
||||
RX path related options:
|
||||
|
||||
- SO_J1939_FILTER - configure array of filters
|
||||
- SO_J1939_PROMISC - disable filters set by bind(2) and connect(2)
|
||||
- ``SO_J1939_FILTER`` - configure array of filters
|
||||
- ``SO_J1939_PROMISC`` - disable filters set by ``bind(2)`` and ``connect(2)``
|
||||
|
||||
By default no broadcast packets can be send or received. To enable sending or
|
||||
receiving broadcast packets use the socket option SO_BROADCAST:
|
||||
receiving broadcast packets use the socket option ``SO_BROADCAST``:
|
||||
|
||||
.. code-block:: C
|
||||
|
||||
@ -261,26 +261,26 @@ The following diagram illustrates the RX path:
|
||||
+---------------------------+
|
||||
|
||||
TX path related options:
|
||||
SO_J1939_SEND_PRIO - change default send priority for the socket
|
||||
``SO_J1939_SEND_PRIO`` - change default send priority for the socket
|
||||
|
||||
Message Flags during send() and Related System Calls
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
send(2), sendto(2) and sendmsg(2) take a 'flags' argument. Currently
|
||||
``send(2)``, ``sendto(2)`` and ``sendmsg(2)`` take a 'flags' argument. Currently
|
||||
supported flags are:
|
||||
|
||||
* MSG_DONTWAIT, i.e. non-blocking operation.
|
||||
* ``MSG_DONTWAIT``, i.e. non-blocking operation.
|
||||
|
||||
recvmsg(2)
|
||||
^^^^^^^^^^
|
||||
|
||||
In most cases recvmsg(2) is needed if you want to extract more information than
|
||||
recvfrom(2) can provide. For example package priority and timestamp. The
|
||||
In most cases ``recvmsg(2)`` is needed if you want to extract more information than
|
||||
``recvfrom(2)`` can provide. For example package priority and timestamp. The
|
||||
Destination Address, name and packet priority (if applicable) are attached to
|
||||
the msghdr in the recvmsg(2) call. They can be extracted using cmsg(3) macros,
|
||||
with cmsg_level == SOL_J1939 && cmsg_type == SCM_J1939_DEST_ADDR,
|
||||
SCM_J1939_DEST_NAME or SCM_J1939_PRIO. The returned data is a uint8_t for
|
||||
priority and dst_addr, and uint64_t for dst_name.
|
||||
the msghdr in the ``recvmsg(2)`` call. They can be extracted using ``cmsg(3)`` macros,
|
||||
with ``cmsg_level == SOL_J1939 && cmsg_type == SCM_J1939_DEST_ADDR``,
|
||||
``SCM_J1939_DEST_NAME`` or ``SCM_J1939_PRIO``. The returned data is a ``uint8_t`` for
|
||||
``priority`` and ``dst_addr``, and ``uint64_t`` for ``dst_name``.
|
||||
|
||||
.. code-block:: C
|
||||
|
||||
@ -305,12 +305,12 @@ Dynamic Addressing
|
||||
|
||||
Distinction has to be made between using the claimed address and doing an
|
||||
address claim. To use an already claimed address, one has to fill in the
|
||||
j1939.name member and provide it to bind(2). If the name had claimed an address
|
||||
``j1939.name`` member and provide it to ``bind(2)``. If the name had claimed an address
|
||||
earlier, all further messages being sent will use that address. And the
|
||||
j1939.addr member will be ignored.
|
||||
``j1939.addr`` member will be ignored.
|
||||
|
||||
An exception on this is PGN 0x0ee00. This is the "Address Claim/Cannot Claim
|
||||
Address" message and the kernel will use the j1939.addr member for that PGN if
|
||||
Address" message and the kernel will use the ``j1939.addr`` member for that PGN if
|
||||
necessary.
|
||||
|
||||
To claim an address following code example can be used:
|
||||
@ -371,12 +371,12 @@ NAME can send packets.
|
||||
|
||||
If another ECU claims the address, the kernel will mark the NAME-SA expired.
|
||||
No socket bound to the NAME can send packets (other than address claims). To
|
||||
claim another address, some socket bound to NAME, must bind(2) again, but with
|
||||
only j1939.addr changed to the new SA, and must then send a valid address claim
|
||||
claim another address, some socket bound to NAME, must ``bind(2)`` again, but with
|
||||
only ``j1939.addr`` changed to the new SA, and must then send a valid address claim
|
||||
packet. This restarts the state machine in the kernel (and any other
|
||||
participant on the bus) for this NAME.
|
||||
|
||||
can-utils also include the jacd tool, so it can be used as code example or as
|
||||
``can-utils`` also include the ``j1939acd`` tool, so it can be used as code example or as
|
||||
default Address Claiming daemon.
|
||||
|
||||
Send Examples
|
||||
@ -403,8 +403,8 @@ Bind:
|
||||
|
||||
bind(sock, (struct sockaddr *)&baddr, sizeof(baddr));
|
||||
|
||||
Now, the socket 'sock' is bound to the SA 0x20. Since no connect(2) was called,
|
||||
at this point we can use only sendto(2) or sendmsg(2).
|
||||
Now, the socket 'sock' is bound to the SA 0x20. Since no ``connect(2)`` was called,
|
||||
at this point we can use only ``sendto(2)`` or ``sendmsg(2)``.
|
||||
|
||||
Send:
|
||||
|
||||
@ -414,8 +414,8 @@ Send:
|
||||
.can_family = AF_CAN,
|
||||
.can_addr.j1939 = {
|
||||
.name = J1939_NO_NAME;
|
||||
.pgn = 0x30,
|
||||
.addr = 0x12300,
|
||||
.addr = 0x30,
|
||||
.pgn = 0x12300,
|
||||
},
|
||||
};
|
||||
|
||||
|
@ -175,5 +175,4 @@ The following structures are internal to the kernel, their members are
|
||||
translated to netlink attributes when dumped. Drivers must not overwrite
|
||||
the statistics they don't report with 0.
|
||||
|
||||
.. kernel-doc:: include/linux/ethtool.h
|
||||
:identifiers: ethtool_pause_stats
|
||||
- ethtool_pause_stats()
|
||||
|
@ -15,6 +15,14 @@ else:
|
||||
import re
|
||||
from itertools import chain
|
||||
|
||||
#
|
||||
# Python 2 lacks re.ASCII...
|
||||
#
|
||||
try:
|
||||
ascii_p3 = re.ASCII
|
||||
except AttributeError:
|
||||
ascii_p3 = 0
|
||||
|
||||
#
|
||||
# Regex nastiness. Of course.
|
||||
# Try to identify "function()" that's not already marked up some
|
||||
@ -22,22 +30,22 @@ from itertools import chain
|
||||
# :c:func: block (i.e. ":c:func:`mmap()`s" flakes out), so the last
|
||||
# bit tries to restrict matches to things that won't create trouble.
|
||||
#
|
||||
RE_function = re.compile(r'\b(([a-zA-Z_]\w+)\(\))', flags=re.ASCII)
|
||||
RE_function = re.compile(r'\b(([a-zA-Z_]\w+)\(\))', flags=ascii_p3)
|
||||
|
||||
#
|
||||
# Sphinx 2 uses the same :c:type role for struct, union, enum and typedef
|
||||
#
|
||||
RE_generic_type = re.compile(r'\b(struct|union|enum|typedef)\s+([a-zA-Z_]\w+)',
|
||||
flags=re.ASCII)
|
||||
flags=ascii_p3)
|
||||
|
||||
#
|
||||
# Sphinx 3 uses a different C role for each one of struct, union, enum and
|
||||
# typedef
|
||||
#
|
||||
RE_struct = re.compile(r'\b(struct)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
|
||||
RE_union = re.compile(r'\b(union)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
|
||||
RE_enum = re.compile(r'\b(enum)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
|
||||
RE_typedef = re.compile(r'\b(typedef)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
|
||||
RE_struct = re.compile(r'\b(struct)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
|
||||
RE_union = re.compile(r'\b(union)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
|
||||
RE_enum = re.compile(r'\b(enum)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
|
||||
RE_typedef = re.compile(r'\b(typedef)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
|
||||
|
||||
#
|
||||
# Detects a reference to a documentation page of the form Documentation/... with
|
||||
|
@ -22,6 +22,7 @@ place where this information is gathered.
|
||||
spec_ctrl
|
||||
accelerators/ocxl
|
||||
ioctl/index
|
||||
iommu
|
||||
media/index
|
||||
|
||||
.. only:: subproject and html
|
||||
|
21
MAINTAINERS
21
MAINTAINERS
@ -934,7 +934,7 @@ M: Evan Quan <evan.quan@amd.com>
|
||||
L: amd-gfx@lists.freedesktop.org
|
||||
S: Supported
|
||||
T: git git://people.freedesktop.org/~agd5f/linux
|
||||
F: drivers/gpu/drm/amd/powerplay/
|
||||
F: drivers/gpu/drm/amd/pm/powerplay/
|
||||
|
||||
AMD SEATTLE DEVICE TREE SUPPORT
|
||||
M: Brijesh Singh <brijeshkumar.singh@amd.com>
|
||||
@ -978,7 +978,7 @@ M: Michael Hennerich <Michael.Hennerich@analog.com>
|
||||
L: linux-iio@vger.kernel.org
|
||||
S: Supported
|
||||
W: http://ez.analog.com/community/linux-device-drivers
|
||||
F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt
|
||||
F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
|
||||
F: drivers/iio/adc/ad7768-1.c
|
||||
|
||||
ANALOG DEVICES INC AD7780 DRIVER
|
||||
@ -3857,7 +3857,7 @@ M: Roger Quadros <rogerq@ti.com>
|
||||
L: linux-usb@vger.kernel.org
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git
|
||||
F: Documentation/devicetree/bindings/usb/cdns-usb3.txt
|
||||
F: Documentation/devicetree/bindings/usb/cdns,usb3.yaml
|
||||
F: drivers/usb/cdns3/
|
||||
|
||||
CADET FM/AM RADIO RECEIVER DRIVER
|
||||
@ -7923,7 +7923,7 @@ HISILICON LPC BUS DRIVER
|
||||
M: john.garry@huawei.com
|
||||
S: Maintained
|
||||
W: http://www.hisilicon.com
|
||||
F: Documentation/devicetree/bindings/arm/hisilicon/hisilicon-low-pin-count.txt
|
||||
F: Documentation/devicetree/bindings/arm/hisilicon/low-pin-count.yaml
|
||||
F: drivers/bus/hisi_lpc.c
|
||||
|
||||
HISILICON NETWORK SUBSYSTEM 3 DRIVER (HNS3)
|
||||
@ -11177,7 +11177,7 @@ F: Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
|
||||
F: drivers/input/touchscreen/melfas_mip4.c
|
||||
|
||||
MELLANOX BLUEFIELD I2C DRIVER
|
||||
M: Khalil Blaiech <kblaiech@mellanox.com>
|
||||
M: Khalil Blaiech <kblaiech@nvidia.com>
|
||||
L: linux-i2c@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/i2c/busses/i2c-mlxbf.c
|
||||
@ -14541,6 +14541,14 @@ F: Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
|
||||
F: drivers/mailbox/qcom-ipcc.c
|
||||
F: include/dt-bindings/mailbox/qcom-ipcc.h
|
||||
|
||||
QUALCOMM IPQ4019 VQMMC REGULATOR DRIVER
|
||||
M: Robert Marko <robert.marko@sartura.hr>
|
||||
M: Luka Perkov <luka.perkov@sartura.hr>
|
||||
L: linux-arm-msm@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/regulator/vqmmc-ipq4019-regulator.yaml
|
||||
F: drivers/regulator/vqmmc-ipq4019-regulator.c
|
||||
|
||||
QUALCOMM RMNET DRIVER
|
||||
M: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
|
||||
M: Sean Tranchetti <stranche@codeaurora.org>
|
||||
@ -14896,7 +14904,6 @@ RENESAS ETHERNET DRIVERS
|
||||
R: Sergei Shtylyov <sergei.shtylyov@gmail.com>
|
||||
L: netdev@vger.kernel.org
|
||||
L: linux-renesas-soc@vger.kernel.org
|
||||
F: Documentation/devicetree/bindings/net/renesas,*.txt
|
||||
F: Documentation/devicetree/bindings/net/renesas,*.yaml
|
||||
F: drivers/net/ethernet/renesas/
|
||||
F: include/linux/sh_eth.h
|
||||
@ -18097,7 +18104,7 @@ M: Yu Chen <chenyu56@huawei.com>
|
||||
M: Binghui Wang <wangbinghui@hisilicon.com>
|
||||
L: linux-usb@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
|
||||
F: Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml
|
||||
F: drivers/phy/hisilicon/phy-hi3660-usb3.c
|
||||
|
||||
USB ISP116X DRIVER
|
||||
|
2
Makefile
2
Makefile
@ -2,7 +2,7 @@
|
||||
VERSION = 5
|
||||
PATCHLEVEL = 10
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc2
|
||||
EXTRAVERSION = -rc3
|
||||
NAME = Kleptomaniac Octopus
|
||||
|
||||
# *DOCUMENTATION*
|
||||
|
@ -67,7 +67,22 @@
|
||||
sr r5, [ARC_REG_LPB_CTRL]
|
||||
1:
|
||||
#endif /* CONFIG_ARC_LPB_DISABLE */
|
||||
#endif
|
||||
|
||||
/* On HSDK, CCMs need to remapped super early */
|
||||
#ifdef CONFIG_ARC_SOC_HSDK
|
||||
mov r6, 0x60000000
|
||||
lr r5, [ARC_REG_ICCM_BUILD]
|
||||
breq r5, 0, 1f
|
||||
sr r6, [ARC_REG_AUX_ICCM]
|
||||
1:
|
||||
lr r5, [ARC_REG_DCCM_BUILD]
|
||||
breq r5, 0, 2f
|
||||
sr r6, [ARC_REG_AUX_DCCM]
|
||||
2:
|
||||
#endif /* CONFIG_ARC_SOC_HSDK */
|
||||
|
||||
#endif /* CONFIG_ISA_ARCV2 */
|
||||
|
||||
; Config DSP_CTRL properly, so kernel may use integer multiply,
|
||||
; multiply-accumulate, and divide operations
|
||||
DSP_EARLY_INIT
|
||||
|
@ -112,7 +112,7 @@ arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs,
|
||||
int (*consumer_fn) (unsigned int, void *), void *arg)
|
||||
{
|
||||
#ifdef CONFIG_ARC_DW2_UNWIND
|
||||
int ret = 0;
|
||||
int ret = 0, cnt = 0;
|
||||
unsigned int address;
|
||||
struct unwind_frame_info frame_info;
|
||||
|
||||
@ -132,6 +132,11 @@ arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs,
|
||||
break;
|
||||
|
||||
frame_info.regs.r63 = frame_info.regs.r31;
|
||||
|
||||
if (cnt++ > 128) {
|
||||
printk("unwinder looping too long, aborting !\n");
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
return address; /* return the last address it saw */
|
||||
|
@ -17,22 +17,6 @@ int arc_hsdk_axi_dmac_coherent __section(".data") = 0;
|
||||
|
||||
#define ARC_CCM_UNUSED_ADDR 0x60000000
|
||||
|
||||
static void __init hsdk_init_per_cpu(unsigned int cpu)
|
||||
{
|
||||
/*
|
||||
* By default ICCM is mapped to 0x7z while this area is used for
|
||||
* kernel virtual mappings, so move it to currently unused area.
|
||||
*/
|
||||
if (cpuinfo_arc700[cpu].iccm.sz)
|
||||
write_aux_reg(ARC_REG_AUX_ICCM, ARC_CCM_UNUSED_ADDR);
|
||||
|
||||
/*
|
||||
* By default DCCM is mapped to 0x8z while this area is used by kernel,
|
||||
* so move it to currently unused area.
|
||||
*/
|
||||
if (cpuinfo_arc700[cpu].dccm.sz)
|
||||
write_aux_reg(ARC_REG_AUX_DCCM, ARC_CCM_UNUSED_ADDR);
|
||||
}
|
||||
|
||||
#define ARC_PERIPHERAL_BASE 0xf0000000
|
||||
#define CREG_BASE (ARC_PERIPHERAL_BASE + 0x1000)
|
||||
@ -339,5 +323,4 @@ static const char *hsdk_compat[] __initconst = {
|
||||
MACHINE_START(SIMULATION, "hsdk")
|
||||
.dt_compat = hsdk_compat,
|
||||
.init_early = hsdk_init_early,
|
||||
.init_per_cpu = hsdk_init_per_cpu,
|
||||
MACHINE_END
|
||||
|
@ -354,8 +354,8 @@ static void __init free_highpages(void)
|
||||
/* set highmem page free */
|
||||
for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE,
|
||||
&range_start, &range_end, NULL) {
|
||||
unsigned long start = PHYS_PFN(range_start);
|
||||
unsigned long end = PHYS_PFN(range_end);
|
||||
unsigned long start = PFN_UP(range_start);
|
||||
unsigned long end = PFN_DOWN(range_end);
|
||||
|
||||
/* Ignore complete lowmem entries */
|
||||
if (end <= max_low)
|
||||
|
@ -1002,7 +1002,7 @@ config NUMA
|
||||
config NODES_SHIFT
|
||||
int "Maximum NUMA Nodes (as a power of 2)"
|
||||
range 1 10
|
||||
default "2"
|
||||
default "4"
|
||||
depends on NEED_MULTIPLE_NODES
|
||||
help
|
||||
Specify the maximum number of NUMA Nodes available on the target
|
||||
|
@ -10,6 +10,7 @@
|
||||
* #imm16 values used for BRK instruction generation
|
||||
* 0x004: for installing kprobes
|
||||
* 0x005: for installing uprobes
|
||||
* 0x006: for kprobe software single-step
|
||||
* Allowed values for kgdb are 0x400 - 0x7ff
|
||||
* 0x100: for triggering a fault on purpose (reserved)
|
||||
* 0x400: for dynamic BRK instruction
|
||||
@ -19,6 +20,7 @@
|
||||
*/
|
||||
#define KPROBES_BRK_IMM 0x004
|
||||
#define UPROBES_BRK_IMM 0x005
|
||||
#define KPROBES_BRK_SS_IMM 0x006
|
||||
#define FAULT_BRK_IMM 0x100
|
||||
#define KGDB_DYN_DBG_BRK_IMM 0x400
|
||||
#define KGDB_COMPILED_DBG_BRK_IMM 0x401
|
||||
|
@ -53,6 +53,7 @@
|
||||
|
||||
/* kprobes BRK opcodes with ESR encoding */
|
||||
#define BRK64_OPCODE_KPROBES (AARCH64_BREAK_MON | (KPROBES_BRK_IMM << 5))
|
||||
#define BRK64_OPCODE_KPROBES_SS (AARCH64_BREAK_MON | (KPROBES_BRK_SS_IMM << 5))
|
||||
/* uprobes BRK opcodes with ESR encoding */
|
||||
#define BRK64_OPCODE_UPROBES (AARCH64_BREAK_MON | (UPROBES_BRK_IMM << 5))
|
||||
|
||||
|
@ -16,7 +16,7 @@
|
||||
#include <linux/percpu.h>
|
||||
|
||||
#define __ARCH_WANT_KPROBES_INSN_SLOT
|
||||
#define MAX_INSN_SIZE 1
|
||||
#define MAX_INSN_SIZE 2
|
||||
|
||||
#define flush_insn_slot(p) do { } while (0)
|
||||
#define kretprobe_blacklist_size 0
|
||||
|
@ -43,7 +43,7 @@ static void *image_load(struct kimage *image,
|
||||
u64 flags, value;
|
||||
bool be_image, be_kernel;
|
||||
struct kexec_buf kbuf;
|
||||
unsigned long text_offset;
|
||||
unsigned long text_offset, kernel_segment_number;
|
||||
struct kexec_segment *kernel_segment;
|
||||
int ret;
|
||||
|
||||
@ -88,11 +88,37 @@ static void *image_load(struct kimage *image,
|
||||
/* Adjust kernel segment with TEXT_OFFSET */
|
||||
kbuf.memsz += text_offset;
|
||||
|
||||
ret = kexec_add_buffer(&kbuf);
|
||||
if (ret)
|
||||
return ERR_PTR(ret);
|
||||
kernel_segment_number = image->nr_segments;
|
||||
|
||||
kernel_segment = &image->segment[image->nr_segments - 1];
|
||||
/*
|
||||
* The location of the kernel segment may make it impossible to satisfy
|
||||
* the other segment requirements, so we try repeatedly to find a
|
||||
* location that will work.
|
||||
*/
|
||||
while ((ret = kexec_add_buffer(&kbuf)) == 0) {
|
||||
/* Try to load additional data */
|
||||
kernel_segment = &image->segment[kernel_segment_number];
|
||||
ret = load_other_segments(image, kernel_segment->mem,
|
||||
kernel_segment->memsz, initrd,
|
||||
initrd_len, cmdline);
|
||||
if (!ret)
|
||||
break;
|
||||
|
||||
/*
|
||||
* We couldn't find space for the other segments; erase the
|
||||
* kernel segment and try the next available hole.
|
||||
*/
|
||||
image->nr_segments -= 1;
|
||||
kbuf.buf_min = kernel_segment->mem + kernel_segment->memsz;
|
||||
kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
|
||||
}
|
||||
|
||||
if (ret) {
|
||||
pr_err("Could not find any suitable kernel location!");
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
kernel_segment = &image->segment[kernel_segment_number];
|
||||
kernel_segment->mem += text_offset;
|
||||
kernel_segment->memsz -= text_offset;
|
||||
image->start = kernel_segment->mem;
|
||||
@ -101,12 +127,7 @@ static void *image_load(struct kimage *image,
|
||||
kernel_segment->mem, kbuf.bufsz,
|
||||
kernel_segment->memsz);
|
||||
|
||||
/* Load additional data */
|
||||
ret = load_other_segments(image,
|
||||
kernel_segment->mem, kernel_segment->memsz,
|
||||
initrd, initrd_len, cmdline);
|
||||
|
||||
return ERR_PTR(ret);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_KEXEC_IMAGE_VERIFY_SIG
|
||||
|
@ -240,6 +240,11 @@ static int prepare_elf_headers(void **addr, unsigned long *sz)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Tries to add the initrd and DTB to the image. If it is not possible to find
|
||||
* valid locations, this function will undo changes to the image and return non
|
||||
* zero.
|
||||
*/
|
||||
int load_other_segments(struct kimage *image,
|
||||
unsigned long kernel_load_addr,
|
||||
unsigned long kernel_size,
|
||||
@ -248,7 +253,8 @@ int load_other_segments(struct kimage *image,
|
||||
{
|
||||
struct kexec_buf kbuf;
|
||||
void *headers, *dtb = NULL;
|
||||
unsigned long headers_sz, initrd_load_addr = 0, dtb_len;
|
||||
unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
|
||||
orig_segments = image->nr_segments;
|
||||
int ret = 0;
|
||||
|
||||
kbuf.image = image;
|
||||
@ -334,6 +340,7 @@ int load_other_segments(struct kimage *image,
|
||||
return 0;
|
||||
|
||||
out_err:
|
||||
image->nr_segments = orig_segments;
|
||||
vfree(dtb);
|
||||
return ret;
|
||||
}
|
||||
|
@ -36,25 +36,16 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
|
||||
static void __kprobes
|
||||
post_kprobe_handler(struct kprobe_ctlblk *, struct pt_regs *);
|
||||
|
||||
static int __kprobes patch_text(kprobe_opcode_t *addr, u32 opcode)
|
||||
{
|
||||
void *addrs[1];
|
||||
u32 insns[1];
|
||||
|
||||
addrs[0] = addr;
|
||||
insns[0] = opcode;
|
||||
|
||||
return aarch64_insn_patch_text(addrs, insns, 1);
|
||||
}
|
||||
|
||||
static void __kprobes arch_prepare_ss_slot(struct kprobe *p)
|
||||
{
|
||||
/* prepare insn slot */
|
||||
patch_text(p->ainsn.api.insn, p->opcode);
|
||||
kprobe_opcode_t *addr = p->ainsn.api.insn;
|
||||
void *addrs[] = {addr, addr + 1};
|
||||
u32 insns[] = {p->opcode, BRK64_OPCODE_KPROBES_SS};
|
||||
|
||||
flush_icache_range((uintptr_t) (p->ainsn.api.insn),
|
||||
(uintptr_t) (p->ainsn.api.insn) +
|
||||
MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
|
||||
/* prepare insn slot */
|
||||
aarch64_insn_patch_text(addrs, insns, 2);
|
||||
|
||||
flush_icache_range((uintptr_t)addr, (uintptr_t)(addr + MAX_INSN_SIZE));
|
||||
|
||||
/*
|
||||
* Needs restoring of return address after stepping xol.
|
||||
@ -128,13 +119,18 @@ void *alloc_insn_page(void)
|
||||
/* arm kprobe: install breakpoint in text */
|
||||
void __kprobes arch_arm_kprobe(struct kprobe *p)
|
||||
{
|
||||
patch_text(p->addr, BRK64_OPCODE_KPROBES);
|
||||
void *addr = p->addr;
|
||||
u32 insn = BRK64_OPCODE_KPROBES;
|
||||
|
||||
aarch64_insn_patch_text(&addr, &insn, 1);
|
||||
}
|
||||
|
||||
/* disarm kprobe: remove breakpoint from text */
|
||||
void __kprobes arch_disarm_kprobe(struct kprobe *p)
|
||||
{
|
||||
patch_text(p->addr, p->opcode);
|
||||
void *addr = p->addr;
|
||||
|
||||
aarch64_insn_patch_text(&addr, &p->opcode, 1);
|
||||
}
|
||||
|
||||
void __kprobes arch_remove_kprobe(struct kprobe *p)
|
||||
@ -163,20 +159,15 @@ static void __kprobes set_current_kprobe(struct kprobe *p)
|
||||
}
|
||||
|
||||
/*
|
||||
* Interrupts need to be disabled before single-step mode is set, and not
|
||||
* reenabled until after single-step mode ends.
|
||||
* Without disabling interrupt on local CPU, there is a chance of
|
||||
* interrupt occurrence in the period of exception return and start of
|
||||
* out-of-line single-step, that result in wrongly single stepping
|
||||
* into the interrupt handler.
|
||||
* Mask all of DAIF while executing the instruction out-of-line, to keep things
|
||||
* simple and avoid nesting exceptions. Interrupts do have to be disabled since
|
||||
* the kprobe state is per-CPU and doesn't get migrated.
|
||||
*/
|
||||
static void __kprobes kprobes_save_local_irqflag(struct kprobe_ctlblk *kcb,
|
||||
struct pt_regs *regs)
|
||||
{
|
||||
kcb->saved_irqflag = regs->pstate & DAIF_MASK;
|
||||
regs->pstate |= PSR_I_BIT;
|
||||
/* Unmask PSTATE.D for enabling software step exceptions. */
|
||||
regs->pstate &= ~PSR_D_BIT;
|
||||
regs->pstate |= DAIF_MASK;
|
||||
}
|
||||
|
||||
static void __kprobes kprobes_restore_local_irqflag(struct kprobe_ctlblk *kcb,
|
||||
@ -219,10 +210,7 @@ static void __kprobes setup_singlestep(struct kprobe *p,
|
||||
slot = (unsigned long)p->ainsn.api.insn;
|
||||
|
||||
set_ss_context(kcb, slot); /* mark pending ss */
|
||||
|
||||
/* IRQs and single stepping do not mix well. */
|
||||
kprobes_save_local_irqflag(kcb, regs);
|
||||
kernel_enable_single_step(regs);
|
||||
instruction_pointer_set(regs, slot);
|
||||
} else {
|
||||
/* insn simulation */
|
||||
@ -273,12 +261,8 @@ post_kprobe_handler(struct kprobe_ctlblk *kcb, struct pt_regs *regs)
|
||||
}
|
||||
/* call post handler */
|
||||
kcb->kprobe_status = KPROBE_HIT_SSDONE;
|
||||
if (cur->post_handler) {
|
||||
/* post_handler can hit breakpoint and single step
|
||||
* again, so we enable D-flag for recursive exception.
|
||||
*/
|
||||
if (cur->post_handler)
|
||||
cur->post_handler(cur, regs, 0);
|
||||
}
|
||||
|
||||
reset_current_kprobe();
|
||||
}
|
||||
@ -302,8 +286,6 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr)
|
||||
if (!instruction_pointer(regs))
|
||||
BUG();
|
||||
|
||||
kernel_disable_single_step();
|
||||
|
||||
if (kcb->kprobe_status == KPROBE_REENTER)
|
||||
restore_previous_kprobe(kcb);
|
||||
else
|
||||
@ -365,10 +347,6 @@ static void __kprobes kprobe_handler(struct pt_regs *regs)
|
||||
* pre-handler and it returned non-zero, it will
|
||||
* modify the execution path and no need to single
|
||||
* stepping. Let's just reset current kprobe and exit.
|
||||
*
|
||||
* pre_handler can hit a breakpoint and can step thru
|
||||
* before return, keep PSTATE D-flag enabled until
|
||||
* pre_handler return back.
|
||||
*/
|
||||
if (!p->pre_handler || !p->pre_handler(p, regs)) {
|
||||
setup_singlestep(p, regs, kcb, 0);
|
||||
@ -399,7 +377,7 @@ kprobe_ss_hit(struct kprobe_ctlblk *kcb, unsigned long addr)
|
||||
}
|
||||
|
||||
static int __kprobes
|
||||
kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr)
|
||||
kprobe_breakpoint_ss_handler(struct pt_regs *regs, unsigned int esr)
|
||||
{
|
||||
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
|
||||
int retval;
|
||||
@ -409,16 +387,15 @@ kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr)
|
||||
|
||||
if (retval == DBG_HOOK_HANDLED) {
|
||||
kprobes_restore_local_irqflag(kcb, regs);
|
||||
kernel_disable_single_step();
|
||||
|
||||
post_kprobe_handler(kcb, regs);
|
||||
}
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static struct step_hook kprobes_step_hook = {
|
||||
.fn = kprobe_single_step_handler,
|
||||
static struct break_hook kprobes_break_ss_hook = {
|
||||
.imm = KPROBES_BRK_SS_IMM,
|
||||
.fn = kprobe_breakpoint_ss_handler,
|
||||
};
|
||||
|
||||
static int __kprobes
|
||||
@ -486,7 +463,7 @@ int __kprobes arch_trampoline_kprobe(struct kprobe *p)
|
||||
int __init arch_init_kprobes(void)
|
||||
{
|
||||
register_kernel_break_hook(&kprobes_break_hook);
|
||||
register_kernel_step_hook(&kprobes_step_hook);
|
||||
register_kernel_break_hook(&kprobes_break_ss_hook);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -63,7 +63,7 @@ static inline void restore_user_access(unsigned long flags)
|
||||
static inline bool
|
||||
bad_kuap_fault(struct pt_regs *regs, unsigned long address, bool is_write)
|
||||
{
|
||||
return WARN(!((regs->kuap ^ MD_APG_KUAP) & 0xf0000000),
|
||||
return WARN(!((regs->kuap ^ MD_APG_KUAP) & 0xff000000),
|
||||
"Bug: fault blocked by AP register !");
|
||||
}
|
||||
|
||||
|
@ -33,19 +33,18 @@
|
||||
* respectively NA for All or X for Supervisor and no access for User.
|
||||
* Then we use the APG to say whether accesses are according to Page rules or
|
||||
* "all Supervisor" rules (Access to all)
|
||||
* Therefore, we define 2 APG groups. lsb is _PMD_USER
|
||||
* 0 => Kernel => 01 (all accesses performed according to page definition)
|
||||
* 1 => User => 00 (all accesses performed as supervisor iaw page definition)
|
||||
* 2-15 => Not Used
|
||||
* _PAGE_ACCESSED is also managed via APG. When _PAGE_ACCESSED is not set, say
|
||||
* "all User" rules, that will lead to NA for all.
|
||||
* Therefore, we define 4 APG groups. lsb is _PAGE_ACCESSED
|
||||
* 0 => Kernel => 11 (all accesses performed according as user iaw page definition)
|
||||
* 1 => Kernel+Accessed => 01 (all accesses performed according to page definition)
|
||||
* 2 => User => 11 (all accesses performed according as user iaw page definition)
|
||||
* 3 => User+Accessed => 00 (all accesses performed as supervisor iaw page definition) for INIT
|
||||
* => 10 (all accesses performed according to swaped page definition) for KUEP
|
||||
* 4-15 => Not Used
|
||||
*/
|
||||
#define MI_APG_INIT 0x40000000
|
||||
|
||||
/*
|
||||
* 0 => Kernel => 01 (all accesses performed according to page definition)
|
||||
* 1 => User => 10 (all accesses performed according to swaped page definition)
|
||||
* 2-15 => Not Used
|
||||
*/
|
||||
#define MI_APG_KUEP 0x60000000
|
||||
#define MI_APG_INIT 0xdc000000
|
||||
#define MI_APG_KUEP 0xde000000
|
||||
|
||||
/* The effective page number register. When read, contains the information
|
||||
* about the last instruction TLB miss. When MI_RPN is written, bits in
|
||||
@ -106,25 +105,9 @@
|
||||
#define MD_Ks 0x80000000 /* Should not be set */
|
||||
#define MD_Kp 0x40000000 /* Should always be set */
|
||||
|
||||
/*
|
||||
* All pages' PP data bits are set to either 000 or 011 or 001, which means
|
||||
* respectively RW for Supervisor and no access for User, or RO for
|
||||
* Supervisor and no access for user and NA for ALL.
|
||||
* Then we use the APG to say whether accesses are according to Page rules or
|
||||
* "all Supervisor" rules (Access to all)
|
||||
* Therefore, we define 2 APG groups. lsb is _PMD_USER
|
||||
* 0 => Kernel => 01 (all accesses performed according to page definition)
|
||||
* 1 => User => 00 (all accesses performed as supervisor iaw page definition)
|
||||
* 2-15 => Not Used
|
||||
*/
|
||||
#define MD_APG_INIT 0x40000000
|
||||
|
||||
/*
|
||||
* 0 => No user => 01 (all accesses performed according to page definition)
|
||||
* 1 => User => 10 (all accesses performed according to swaped page definition)
|
||||
* 2-15 => Not Used
|
||||
*/
|
||||
#define MD_APG_KUAP 0x60000000
|
||||
/* See explanation above at the definition of MI_APG_INIT */
|
||||
#define MD_APG_INIT 0xdc000000
|
||||
#define MD_APG_KUAP 0xde000000
|
||||
|
||||
/* The effective page number register. When read, contains the information
|
||||
* about the last instruction TLB miss. When MD_RPN is written, bits in
|
||||
|
@ -39,9 +39,9 @@
|
||||
* into the TLB.
|
||||
*/
|
||||
#define _PAGE_GUARDED 0x0010 /* Copied to L1 G entry in DTLB */
|
||||
#define _PAGE_SPECIAL 0x0020 /* SW entry */
|
||||
#define _PAGE_ACCESSED 0x0020 /* Copied to L1 APG 1 entry in I/DTLB */
|
||||
#define _PAGE_EXEC 0x0040 /* Copied to PP (bit 21) in ITLB */
|
||||
#define _PAGE_ACCESSED 0x0080 /* software: page referenced */
|
||||
#define _PAGE_SPECIAL 0x0080 /* SW entry */
|
||||
|
||||
#define _PAGE_NA 0x0200 /* Supervisor NA, User no access */
|
||||
#define _PAGE_RO 0x0600 /* Supervisor RO, User no access */
|
||||
@ -59,11 +59,12 @@
|
||||
|
||||
#define _PMD_PRESENT 0x0001
|
||||
#define _PMD_PRESENT_MASK _PMD_PRESENT
|
||||
#define _PMD_BAD 0x0fd0
|
||||
#define _PMD_BAD 0x0f90
|
||||
#define _PMD_PAGE_MASK 0x000c
|
||||
#define _PMD_PAGE_8M 0x000c
|
||||
#define _PMD_PAGE_512K 0x0004
|
||||
#define _PMD_USER 0x0020 /* APG 1 */
|
||||
#define _PMD_ACCESSED 0x0020 /* APG 1 */
|
||||
#define _PMD_USER 0x0040 /* APG 2 */
|
||||
|
||||
#define _PTE_NONE_MASK 0
|
||||
|
||||
|
@ -6,6 +6,7 @@
|
||||
|
||||
struct device;
|
||||
struct device_node;
|
||||
struct drmem_lmb;
|
||||
|
||||
#ifdef CONFIG_NUMA
|
||||
|
||||
@ -61,6 +62,9 @@ static inline int early_cpu_to_node(int cpu)
|
||||
*/
|
||||
return (nid < 0) ? 0 : nid;
|
||||
}
|
||||
|
||||
int of_drconf_to_nid_single(struct drmem_lmb *lmb);
|
||||
|
||||
#else
|
||||
|
||||
static inline int early_cpu_to_node(int cpu) { return 0; }
|
||||
@ -84,10 +88,12 @@ static inline int cpu_distance(__be32 *cpu1_assoc, __be32 *cpu2_assoc)
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_NUMA */
|
||||
static inline int of_drconf_to_nid_single(struct drmem_lmb *lmb)
|
||||
{
|
||||
return first_online_node;
|
||||
}
|
||||
|
||||
struct drmem_lmb;
|
||||
int of_drconf_to_nid_single(struct drmem_lmb *lmb);
|
||||
#endif /* CONFIG_NUMA */
|
||||
|
||||
#if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
|
||||
extern int find_and_online_cpu_nid(int cpu);
|
||||
|
@ -178,7 +178,7 @@ do { \
|
||||
* are no aliasing issues.
|
||||
*/
|
||||
#define __put_user_asm_goto(x, addr, label, op) \
|
||||
asm volatile goto( \
|
||||
asm_volatile_goto( \
|
||||
"1: " op "%U1%X1 %0,%1 # put_user\n" \
|
||||
EX_TABLE(1b, %l2) \
|
||||
: \
|
||||
@ -191,7 +191,7 @@ do { \
|
||||
__put_user_asm_goto(x, ptr, label, "std")
|
||||
#else /* __powerpc64__ */
|
||||
#define __put_user_asm2_goto(x, addr, label) \
|
||||
asm volatile goto( \
|
||||
asm_volatile_goto( \
|
||||
"1: stw%X1 %0, %1\n" \
|
||||
"2: stw%X1 %L0, %L1\n" \
|
||||
EX_TABLE(1b, %l2) \
|
||||
|
@ -264,8 +264,9 @@ static int eeh_addr_cache_show(struct seq_file *s, void *v)
|
||||
{
|
||||
struct pci_io_addr_range *piar;
|
||||
struct rb_node *n;
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock(&pci_io_addr_cache_root.piar_lock);
|
||||
spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags);
|
||||
for (n = rb_first(&pci_io_addr_cache_root.rb_root); n; n = rb_next(n)) {
|
||||
piar = rb_entry(n, struct pci_io_addr_range, rb_node);
|
||||
|
||||
@ -273,7 +274,7 @@ static int eeh_addr_cache_show(struct seq_file *s, void *v)
|
||||
(piar->flags & IORESOURCE_IO) ? "i/o" : "mem",
|
||||
&piar->addr_lo, &piar->addr_hi, pci_name(piar->pcidev));
|
||||
}
|
||||
spin_unlock(&pci_io_addr_cache_root.piar_lock);
|
||||
spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -284,11 +284,7 @@ _ENTRY(saved_ksp_limit)
|
||||
|
||||
rlwimi r11, r10, 22, 20, 29 /* Compute PTE address */
|
||||
lwz r11, 0(r11) /* Get Linux PTE */
|
||||
#ifdef CONFIG_SWAP
|
||||
li r9, _PAGE_PRESENT | _PAGE_ACCESSED
|
||||
#else
|
||||
li r9, _PAGE_PRESENT
|
||||
#endif
|
||||
andc. r9, r9, r11 /* Check permission */
|
||||
bne 5f
|
||||
|
||||
@ -369,11 +365,7 @@ _ENTRY(saved_ksp_limit)
|
||||
|
||||
rlwimi r11, r10, 22, 20, 29 /* Compute PTE address */
|
||||
lwz r11, 0(r11) /* Get Linux PTE */
|
||||
#ifdef CONFIG_SWAP
|
||||
li r9, _PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
|
||||
#else
|
||||
li r9, _PAGE_PRESENT | _PAGE_EXEC
|
||||
#endif
|
||||
andc. r9, r9, r11 /* Check permission */
|
||||
bne 5f
|
||||
|
||||
|
@ -202,9 +202,7 @@ SystemCall:
|
||||
|
||||
InstructionTLBMiss:
|
||||
mtspr SPRN_SPRG_SCRATCH0, r10
|
||||
#if defined(ITLB_MISS_KERNEL) || defined(CONFIG_SWAP) || defined(CONFIG_HUGETLBFS)
|
||||
mtspr SPRN_SPRG_SCRATCH1, r11
|
||||
#endif
|
||||
|
||||
/* If we are faulting a kernel address, we have to use the
|
||||
* kernel page tables.
|
||||
@ -224,25 +222,13 @@ InstructionTLBMiss:
|
||||
3:
|
||||
mtcr r11
|
||||
#endif
|
||||
#if defined(CONFIG_HUGETLBFS) || !defined(CONFIG_PIN_TLB_TEXT)
|
||||
lwz r11, (swapper_pg_dir-PAGE_OFFSET)@l(r10) /* Get level 1 entry */
|
||||
mtspr SPRN_MD_TWC, r11
|
||||
#else
|
||||
lwz r10, (swapper_pg_dir-PAGE_OFFSET)@l(r10) /* Get level 1 entry */
|
||||
mtspr SPRN_MI_TWC, r10 /* Set segment attributes */
|
||||
mtspr SPRN_MD_TWC, r10
|
||||
#endif
|
||||
mfspr r10, SPRN_MD_TWC
|
||||
lwz r10, 0(r10) /* Get the pte */
|
||||
#if defined(CONFIG_HUGETLBFS) || !defined(CONFIG_PIN_TLB_TEXT)
|
||||
rlwimi r11, r10, 0, _PAGE_GUARDED | _PAGE_ACCESSED
|
||||
rlwimi r11, r10, 32 - 9, _PMD_PAGE_512K
|
||||
mtspr SPRN_MI_TWC, r11
|
||||
#endif
|
||||
#ifdef CONFIG_SWAP
|
||||
rlwinm r11, r10, 32-5, _PAGE_PRESENT
|
||||
and r11, r11, r10
|
||||
rlwimi r10, r11, 0, _PAGE_PRESENT
|
||||
#endif
|
||||
/* The Linux PTE won't go exactly into the MMU TLB.
|
||||
* Software indicator bits 20 and 23 must be clear.
|
||||
* Software indicator bits 22, 24, 25, 26, and 27 must be
|
||||
@ -256,9 +242,7 @@ InstructionTLBMiss:
|
||||
|
||||
/* Restore registers */
|
||||
0: mfspr r10, SPRN_SPRG_SCRATCH0
|
||||
#if defined(ITLB_MISS_KERNEL) || defined(CONFIG_SWAP) || defined(CONFIG_HUGETLBFS)
|
||||
mfspr r11, SPRN_SPRG_SCRATCH1
|
||||
#endif
|
||||
rfi
|
||||
patch_site 0b, patch__itlbmiss_exit_1
|
||||
|
||||
@ -268,9 +252,7 @@ InstructionTLBMiss:
|
||||
addi r10, r10, 1
|
||||
stw r10, (itlb_miss_counter - PAGE_OFFSET)@l(0)
|
||||
mfspr r10, SPRN_SPRG_SCRATCH0
|
||||
#if defined(ITLB_MISS_KERNEL) || defined(CONFIG_SWAP)
|
||||
mfspr r11, SPRN_SPRG_SCRATCH1
|
||||
#endif
|
||||
rfi
|
||||
#endif
|
||||
|
||||
@ -297,30 +279,16 @@ DataStoreTLBMiss:
|
||||
mfspr r10, SPRN_MD_TWC
|
||||
lwz r10, 0(r10) /* Get the pte */
|
||||
|
||||
/* Insert the Guarded flag into the TWC from the Linux PTE.
|
||||
/* Insert Guarded and Accessed flags into the TWC from the Linux PTE.
|
||||
* It is bit 27 of both the Linux PTE and the TWC (at least
|
||||
* I got that right :-). It will be better when we can put
|
||||
* this into the Linux pgd/pmd and load it in the operation
|
||||
* above.
|
||||
*/
|
||||
rlwimi r11, r10, 0, _PAGE_GUARDED
|
||||
rlwimi r11, r10, 0, _PAGE_GUARDED | _PAGE_ACCESSED
|
||||
rlwimi r11, r10, 32 - 9, _PMD_PAGE_512K
|
||||
mtspr SPRN_MD_TWC, r11
|
||||
|
||||
/* Both _PAGE_ACCESSED and _PAGE_PRESENT has to be set.
|
||||
* We also need to know if the insn is a load/store, so:
|
||||
* Clear _PAGE_PRESENT and load that which will
|
||||
* trap into DTLB Error with store bit set accordinly.
|
||||
*/
|
||||
/* PRESENT=0x1, ACCESSED=0x20
|
||||
* r11 = ((r10 & PRESENT) & ((r10 & ACCESSED) >> 5));
|
||||
* r10 = (r10 & ~PRESENT) | r11;
|
||||
*/
|
||||
#ifdef CONFIG_SWAP
|
||||
rlwinm r11, r10, 32-5, _PAGE_PRESENT
|
||||
and r11, r11, r10
|
||||
rlwimi r10, r11, 0, _PAGE_PRESENT
|
||||
#endif
|
||||
/* The Linux PTE won't go exactly into the MMU TLB.
|
||||
* Software indicator bits 24, 25, 26, and 27 must be
|
||||
* set. All other Linux PTE bits control the behavior
|
||||
@ -711,7 +679,7 @@ initial_mmu:
|
||||
li r9, 4 /* up to 4 pages of 8M */
|
||||
mtctr r9
|
||||
lis r9, KERNELBASE@h /* Create vaddr for TLB */
|
||||
li r10, MI_PS8MEG | MI_SVALID /* Set 8M byte page */
|
||||
li r10, MI_PS8MEG | _PMD_ACCESSED | MI_SVALID
|
||||
li r11, MI_BOOTINIT /* Create RPN for address 0 */
|
||||
1:
|
||||
mtspr SPRN_MI_CTR, r8 /* Set instruction MMU control */
|
||||
@ -775,7 +743,7 @@ _GLOBAL(mmu_pin_tlb)
|
||||
#ifdef CONFIG_PIN_TLB_TEXT
|
||||
LOAD_REG_IMMEDIATE(r5, 28 << 8)
|
||||
LOAD_REG_IMMEDIATE(r6, PAGE_OFFSET)
|
||||
LOAD_REG_IMMEDIATE(r7, MI_SVALID | MI_PS8MEG)
|
||||
LOAD_REG_IMMEDIATE(r7, MI_SVALID | MI_PS8MEG | _PMD_ACCESSED)
|
||||
LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_RO | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT)
|
||||
LOAD_REG_ADDR(r9, _sinittext)
|
||||
li r0, 4
|
||||
@ -797,7 +765,7 @@ _GLOBAL(mmu_pin_tlb)
|
||||
LOAD_REG_IMMEDIATE(r5, 28 << 8 | MD_TWAM)
|
||||
#ifdef CONFIG_PIN_TLB_DATA
|
||||
LOAD_REG_IMMEDIATE(r6, PAGE_OFFSET)
|
||||
LOAD_REG_IMMEDIATE(r7, MI_SVALID | MI_PS8MEG)
|
||||
LOAD_REG_IMMEDIATE(r7, MI_SVALID | MI_PS8MEG | _PMD_ACCESSED)
|
||||
#ifdef CONFIG_PIN_TLB_IMMR
|
||||
li r0, 3
|
||||
#else
|
||||
@ -834,7 +802,7 @@ _GLOBAL(mmu_pin_tlb)
|
||||
#endif
|
||||
#ifdef CONFIG_PIN_TLB_IMMR
|
||||
LOAD_REG_IMMEDIATE(r0, VIRT_IMMR_BASE | MD_EVALID)
|
||||
LOAD_REG_IMMEDIATE(r7, MD_SVALID | MD_PS512K | MD_GUARDED)
|
||||
LOAD_REG_IMMEDIATE(r7, MD_SVALID | MD_PS512K | MD_GUARDED | _PMD_ACCESSED)
|
||||
mfspr r8, SPRN_IMMR
|
||||
rlwinm r8, r8, 0, 0xfff80000
|
||||
ori r8, r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | \
|
||||
|
@ -457,11 +457,7 @@ InstructionTLBMiss:
|
||||
cmplw 0,r1,r3
|
||||
#endif
|
||||
mfspr r2, SPRN_SPRG_PGDIR
|
||||
#ifdef CONFIG_SWAP
|
||||
li r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
|
||||
#else
|
||||
li r1,_PAGE_PRESENT | _PAGE_EXEC
|
||||
#endif
|
||||
#if defined(CONFIG_MODULES) || defined(CONFIG_DEBUG_PAGEALLOC)
|
||||
bgt- 112f
|
||||
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */
|
||||
@ -523,11 +519,7 @@ DataLoadTLBMiss:
|
||||
lis r1, TASK_SIZE@h /* check if kernel address */
|
||||
cmplw 0,r1,r3
|
||||
mfspr r2, SPRN_SPRG_PGDIR
|
||||
#ifdef CONFIG_SWAP
|
||||
li r1, _PAGE_PRESENT | _PAGE_ACCESSED
|
||||
#else
|
||||
li r1, _PAGE_PRESENT
|
||||
#endif
|
||||
bgt- 112f
|
||||
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */
|
||||
addi r2, r2, (swapper_pg_dir - PAGE_OFFSET)@l /* kernel page table */
|
||||
@ -603,11 +595,7 @@ DataStoreTLBMiss:
|
||||
lis r1, TASK_SIZE@h /* check if kernel address */
|
||||
cmplw 0,r1,r3
|
||||
mfspr r2, SPRN_SPRG_PGDIR
|
||||
#ifdef CONFIG_SWAP
|
||||
li r1, _PAGE_RW | _PAGE_DIRTY | _PAGE_PRESENT | _PAGE_ACCESSED
|
||||
#else
|
||||
li r1, _PAGE_RW | _PAGE_DIRTY | _PAGE_PRESENT
|
||||
#endif
|
||||
bgt- 112f
|
||||
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */
|
||||
addi r2, r2, (swapper_pg_dir - PAGE_OFFSET)@l /* kernel page table */
|
||||
|
@ -1393,13 +1393,14 @@ static void add_cpu_to_masks(int cpu)
|
||||
/* Activate a secondary processor. */
|
||||
void start_secondary(void *unused)
|
||||
{
|
||||
unsigned int cpu = smp_processor_id();
|
||||
unsigned int cpu = raw_smp_processor_id();
|
||||
|
||||
mmgrab(&init_mm);
|
||||
current->active_mm = &init_mm;
|
||||
|
||||
smp_store_cpu_info(cpu);
|
||||
set_dec(tb_ticks_per_jiffy);
|
||||
rcu_cpu_starting(cpu);
|
||||
preempt_disable();
|
||||
cpu_callin_map[cpu] = 1;
|
||||
|
||||
|
@ -476,7 +476,7 @@ do { \
|
||||
do { \
|
||||
long __kr_err; \
|
||||
\
|
||||
__put_user_nocheck(*((type *)(dst)), (type *)(src), __kr_err); \
|
||||
__put_user_nocheck(*((type *)(src)), (type *)(dst), __kr_err); \
|
||||
if (unlikely(__kr_err)) \
|
||||
goto err_label; \
|
||||
} while (0)
|
||||
|
@ -1,4 +1,4 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* Copyright (C) 2013 Linaro Limited
|
||||
* Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
|
||||
|
@ -35,12 +35,17 @@ ENTRY(_start)
|
||||
.word 0
|
||||
#endif
|
||||
.balign 8
|
||||
#ifdef CONFIG_RISCV_M_MODE
|
||||
/* Image load offset (0MB) from start of RAM for M-mode */
|
||||
.dword 0
|
||||
#else
|
||||
#if __riscv_xlen == 64
|
||||
/* Image load offset(2MB) from start of RAM */
|
||||
.dword 0x200000
|
||||
#else
|
||||
/* Image load offset(4MB) from start of RAM */
|
||||
.dword 0x400000
|
||||
#endif
|
||||
#endif
|
||||
/* Effective size of kernel image */
|
||||
.dword _end - _start
|
||||
|
1
arch/riscv/kernel/vdso/.gitignore
vendored
1
arch/riscv/kernel/vdso/.gitignore
vendored
@ -1,3 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
vdso.lds
|
||||
*.tmp
|
||||
vdso-syms.S
|
||||
|
@ -43,19 +43,14 @@ $(obj)/vdso.o: $(obj)/vdso.so
|
||||
SYSCFLAGS_vdso.so.dbg = $(c_flags)
|
||||
$(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso) FORCE
|
||||
$(call if_changed,vdsold)
|
||||
SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \
|
||||
-Wl,--build-id -Wl,--hash-style=both
|
||||
|
||||
# We also create a special relocatable object that should mirror the symbol
|
||||
# table and layout of the linked DSO. With ld --just-symbols we can then
|
||||
# refer to these symbols in the kernel code rather than hand-coded addresses.
|
||||
|
||||
SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \
|
||||
-Wl,--build-id=sha1 -Wl,--hash-style=both
|
||||
$(obj)/vdso-dummy.o: $(src)/vdso.lds $(obj)/rt_sigreturn.o FORCE
|
||||
$(call if_changed,vdsold)
|
||||
|
||||
LDFLAGS_vdso-syms.o := -r --just-symbols
|
||||
$(obj)/vdso-syms.o: $(obj)/vdso-dummy.o FORCE
|
||||
$(call if_changed,ld)
|
||||
$(obj)/vdso-syms.S: $(obj)/vdso.so FORCE
|
||||
$(call if_changed,so2s)
|
||||
|
||||
# strip rule for the .so file
|
||||
$(obj)/%.so: OBJCOPYFLAGS := -S
|
||||
@ -73,6 +68,11 @@ quiet_cmd_vdsold = VDSOLD $@
|
||||
$(patsubst %, -G __vdso_%, $(vdso-syms)) $@.tmp $@ && \
|
||||
rm $@.tmp
|
||||
|
||||
# Extracts symbol offsets from the VDSO, converting them into an assembly file
|
||||
# that contains the same symbols at the same offsets.
|
||||
quiet_cmd_so2s = SO2S $@
|
||||
cmd_so2s = $(NM) -D $< | $(srctree)/$(src)/so2s.sh > $@
|
||||
|
||||
# install commands for the unstripped file
|
||||
quiet_cmd_vdso_install = INSTALL $@
|
||||
cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
|
||||
|
6
arch/riscv/kernel/vdso/so2s.sh
Executable file
6
arch/riscv/kernel/vdso/so2s.sh
Executable file
@ -0,0 +1,6 @@
|
||||
#!/bin/sh
|
||||
# SPDX-License-Identifier: GPL-2.0+
|
||||
# Copyright 2020 Palmer Dabbelt <palmerdabbelt@google.com>
|
||||
|
||||
sed 's!\([0-9a-f]*\) T \([a-z0-9_]*\)\(@@LINUX_4.15\)*!.global \2\n.set \2,0x\1!' \
|
||||
| grep '^\.'
|
@ -86,6 +86,7 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
|
||||
pmd_t *pmd, *pmd_k;
|
||||
pte_t *pte_k;
|
||||
int index;
|
||||
unsigned long pfn;
|
||||
|
||||
/* User mode accesses just cause a SIGSEGV */
|
||||
if (user_mode(regs))
|
||||
@ -100,7 +101,8 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
|
||||
* of a task switch.
|
||||
*/
|
||||
index = pgd_index(addr);
|
||||
pgd = (pgd_t *)pfn_to_virt(csr_read(CSR_SATP)) + index;
|
||||
pfn = csr_read(CSR_SATP) & SATP_PPN;
|
||||
pgd = (pgd_t *)pfn_to_virt(pfn) + index;
|
||||
pgd_k = init_mm.pgd + index;
|
||||
|
||||
if (!pgd_present(*pgd_k)) {
|
||||
|
@ -154,9 +154,8 @@ disable:
|
||||
|
||||
void __init setup_bootmem(void)
|
||||
{
|
||||
phys_addr_t mem_size = 0;
|
||||
phys_addr_t total_mem = 0;
|
||||
phys_addr_t mem_start, start, end = 0;
|
||||
phys_addr_t mem_start = 0;
|
||||
phys_addr_t start, end = 0;
|
||||
phys_addr_t vmlinux_end = __pa_symbol(&_end);
|
||||
phys_addr_t vmlinux_start = __pa_symbol(&_start);
|
||||
u64 i;
|
||||
@ -164,21 +163,18 @@ void __init setup_bootmem(void)
|
||||
/* Find the memory region containing the kernel */
|
||||
for_each_mem_range(i, &start, &end) {
|
||||
phys_addr_t size = end - start;
|
||||
if (!total_mem)
|
||||
if (!mem_start)
|
||||
mem_start = start;
|
||||
if (start <= vmlinux_start && vmlinux_end <= end)
|
||||
BUG_ON(size == 0);
|
||||
total_mem = total_mem + size;
|
||||
}
|
||||
|
||||
/*
|
||||
* Remove memblock from the end of usable area to the
|
||||
* end of region
|
||||
* The maximal physical memory size is -PAGE_OFFSET.
|
||||
* Make sure that any memory beyond mem_start + (-PAGE_OFFSET) is removed
|
||||
* as it is unusable by kernel.
|
||||
*/
|
||||
mem_size = min(total_mem, (phys_addr_t)-PAGE_OFFSET);
|
||||
if (mem_start + mem_size < end)
|
||||
memblock_remove(mem_start + mem_size,
|
||||
end - mem_start - mem_size);
|
||||
memblock_enforce_memory_limit(mem_start - PAGE_OFFSET);
|
||||
|
||||
/* Reserve from the start of the kernel to the end of the kernel */
|
||||
memblock_reserve(vmlinux_start, vmlinux_end - vmlinux_start);
|
||||
@ -297,6 +293,7 @@ pmd_t fixmap_pmd[PTRS_PER_PMD] __page_aligned_bss;
|
||||
#define NUM_EARLY_PMDS (1UL + MAX_EARLY_MAPPING_SIZE / PGDIR_SIZE)
|
||||
#endif
|
||||
pmd_t early_pmd[PTRS_PER_PMD * NUM_EARLY_PMDS] __initdata __aligned(PAGE_SIZE);
|
||||
pmd_t early_dtb_pmd[PTRS_PER_PMD] __initdata __aligned(PAGE_SIZE);
|
||||
|
||||
static pmd_t *__init get_pmd_virt_early(phys_addr_t pa)
|
||||
{
|
||||
@ -494,6 +491,18 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa)
|
||||
load_pa + (va - PAGE_OFFSET),
|
||||
map_size, PAGE_KERNEL_EXEC);
|
||||
|
||||
#ifndef __PAGETABLE_PMD_FOLDED
|
||||
/* Setup early PMD for DTB */
|
||||
create_pgd_mapping(early_pg_dir, DTB_EARLY_BASE_VA,
|
||||
(uintptr_t)early_dtb_pmd, PGDIR_SIZE, PAGE_TABLE);
|
||||
/* Create two consecutive PMD mappings for FDT early scan */
|
||||
pa = dtb_pa & ~(PMD_SIZE - 1);
|
||||
create_pmd_mapping(early_dtb_pmd, DTB_EARLY_BASE_VA,
|
||||
pa, PMD_SIZE, PAGE_KERNEL);
|
||||
create_pmd_mapping(early_dtb_pmd, DTB_EARLY_BASE_VA + PMD_SIZE,
|
||||
pa + PMD_SIZE, PMD_SIZE, PAGE_KERNEL);
|
||||
dtb_early_va = (void *)DTB_EARLY_BASE_VA + (dtb_pa & (PMD_SIZE - 1));
|
||||
#else
|
||||
/* Create two consecutive PGD mappings for FDT early scan */
|
||||
pa = dtb_pa & ~(PGDIR_SIZE - 1);
|
||||
create_pgd_mapping(early_pg_dir, DTB_EARLY_BASE_VA,
|
||||
@ -501,6 +510,7 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa)
|
||||
create_pgd_mapping(early_pg_dir, DTB_EARLY_BASE_VA + PGDIR_SIZE,
|
||||
pa + PGDIR_SIZE, PGDIR_SIZE, PAGE_KERNEL);
|
||||
dtb_early_va = (void *)DTB_EARLY_BASE_VA + (dtb_pa & (PGDIR_SIZE - 1));
|
||||
#endif
|
||||
dtb_early_pa = dtb_pa;
|
||||
|
||||
/*
|
||||
|
@ -93,9 +93,10 @@ CONFIG_CLEANCACHE=y
|
||||
CONFIG_FRONTSWAP=y
|
||||
CONFIG_CMA_DEBUG=y
|
||||
CONFIG_CMA_DEBUGFS=y
|
||||
CONFIG_CMA_AREAS=7
|
||||
CONFIG_MEM_SOFT_DIRTY=y
|
||||
CONFIG_ZSWAP=y
|
||||
CONFIG_ZSMALLOC=m
|
||||
CONFIG_ZSMALLOC=y
|
||||
CONFIG_ZSMALLOC_STAT=y
|
||||
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
|
||||
CONFIG_IDLE_PAGE_TRACKING=y
|
||||
@ -378,7 +379,6 @@ CONFIG_NETLINK_DIAG=m
|
||||
CONFIG_CGROUP_NET_PRIO=y
|
||||
CONFIG_BPF_JIT=y
|
||||
CONFIG_NET_PKTGEN=m
|
||||
# CONFIG_NET_DROP_MONITOR is not set
|
||||
CONFIG_PCI=y
|
||||
# CONFIG_PCIEASPM is not set
|
||||
CONFIG_PCI_DEBUG=y
|
||||
@ -386,7 +386,7 @@ CONFIG_HOTPLUG_PCI=y
|
||||
CONFIG_HOTPLUG_PCI_S390=y
|
||||
CONFIG_DEVTMPFS=y
|
||||
CONFIG_CONNECTOR=y
|
||||
CONFIG_ZRAM=m
|
||||
CONFIG_ZRAM=y
|
||||
CONFIG_BLK_DEV_LOOP=m
|
||||
CONFIG_BLK_DEV_CRYPTOLOOP=m
|
||||
CONFIG_BLK_DEV_DRBD=m
|
||||
@ -689,6 +689,7 @@ CONFIG_CRYPTO_TEST=m
|
||||
CONFIG_CRYPTO_DH=m
|
||||
CONFIG_CRYPTO_ECDH=m
|
||||
CONFIG_CRYPTO_ECRDSA=m
|
||||
CONFIG_CRYPTO_SM2=m
|
||||
CONFIG_CRYPTO_CURVE25519=m
|
||||
CONFIG_CRYPTO_GCM=y
|
||||
CONFIG_CRYPTO_CHACHA20POLY1305=m
|
||||
@ -709,7 +710,6 @@ CONFIG_CRYPTO_RMD160=m
|
||||
CONFIG_CRYPTO_RMD256=m
|
||||
CONFIG_CRYPTO_RMD320=m
|
||||
CONFIG_CRYPTO_SHA3=m
|
||||
CONFIG_CRYPTO_SM3=m
|
||||
CONFIG_CRYPTO_TGR192=m
|
||||
CONFIG_CRYPTO_WP512=m
|
||||
CONFIG_CRYPTO_AES_TI=m
|
||||
@ -753,6 +753,7 @@ CONFIG_CRYPTO_DES_S390=m
|
||||
CONFIG_CRYPTO_AES_S390=m
|
||||
CONFIG_CRYPTO_GHASH_S390=m
|
||||
CONFIG_CRYPTO_CRC32_S390=y
|
||||
CONFIG_CRYPTO_DEV_VIRTIO=m
|
||||
CONFIG_CORDIC=m
|
||||
CONFIG_CRC32_SELFTEST=y
|
||||
CONFIG_CRC4=m
|
||||
@ -829,6 +830,7 @@ CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=m
|
||||
CONFIG_FAULT_INJECTION=y
|
||||
CONFIG_FAILSLAB=y
|
||||
CONFIG_FAIL_PAGE_ALLOC=y
|
||||
CONFIG_FAULT_INJECTION_USERCOPY=y
|
||||
CONFIG_FAIL_MAKE_REQUEST=y
|
||||
CONFIG_FAIL_IO_TIMEOUT=y
|
||||
CONFIG_FAIL_FUTEX=y
|
||||
|
@ -87,9 +87,10 @@ CONFIG_KSM=y
|
||||
CONFIG_TRANSPARENT_HUGEPAGE=y
|
||||
CONFIG_CLEANCACHE=y
|
||||
CONFIG_FRONTSWAP=y
|
||||
CONFIG_CMA_AREAS=7
|
||||
CONFIG_MEM_SOFT_DIRTY=y
|
||||
CONFIG_ZSWAP=y
|
||||
CONFIG_ZSMALLOC=m
|
||||
CONFIG_ZSMALLOC=y
|
||||
CONFIG_ZSMALLOC_STAT=y
|
||||
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
|
||||
CONFIG_IDLE_PAGE_TRACKING=y
|
||||
@ -371,7 +372,6 @@ CONFIG_NETLINK_DIAG=m
|
||||
CONFIG_CGROUP_NET_PRIO=y
|
||||
CONFIG_BPF_JIT=y
|
||||
CONFIG_NET_PKTGEN=m
|
||||
# CONFIG_NET_DROP_MONITOR is not set
|
||||
CONFIG_PCI=y
|
||||
# CONFIG_PCIEASPM is not set
|
||||
CONFIG_HOTPLUG_PCI=y
|
||||
@ -379,7 +379,7 @@ CONFIG_HOTPLUG_PCI_S390=y
|
||||
CONFIG_UEVENT_HELPER=y
|
||||
CONFIG_DEVTMPFS=y
|
||||
CONFIG_CONNECTOR=y
|
||||
CONFIG_ZRAM=m
|
||||
CONFIG_ZRAM=y
|
||||
CONFIG_BLK_DEV_LOOP=m
|
||||
CONFIG_BLK_DEV_CRYPTOLOOP=m
|
||||
CONFIG_BLK_DEV_DRBD=m
|
||||
@ -680,6 +680,7 @@ CONFIG_CRYPTO_TEST=m
|
||||
CONFIG_CRYPTO_DH=m
|
||||
CONFIG_CRYPTO_ECDH=m
|
||||
CONFIG_CRYPTO_ECRDSA=m
|
||||
CONFIG_CRYPTO_SM2=m
|
||||
CONFIG_CRYPTO_CURVE25519=m
|
||||
CONFIG_CRYPTO_GCM=y
|
||||
CONFIG_CRYPTO_CHACHA20POLY1305=m
|
||||
@ -701,7 +702,6 @@ CONFIG_CRYPTO_RMD160=m
|
||||
CONFIG_CRYPTO_RMD256=m
|
||||
CONFIG_CRYPTO_RMD320=m
|
||||
CONFIG_CRYPTO_SHA3=m
|
||||
CONFIG_CRYPTO_SM3=m
|
||||
CONFIG_CRYPTO_TGR192=m
|
||||
CONFIG_CRYPTO_WP512=m
|
||||
CONFIG_CRYPTO_AES_TI=m
|
||||
@ -745,6 +745,7 @@ CONFIG_CRYPTO_DES_S390=m
|
||||
CONFIG_CRYPTO_AES_S390=m
|
||||
CONFIG_CRYPTO_GHASH_S390=m
|
||||
CONFIG_CRYPTO_CRC32_S390=y
|
||||
CONFIG_CRYPTO_DEV_VIRTIO=m
|
||||
CONFIG_CORDIC=m
|
||||
CONFIG_PRIME_NUMBERS=m
|
||||
CONFIG_CRC4=m
|
||||
|
@ -17,11 +17,11 @@ CONFIG_HZ_100=y
|
||||
# CONFIG_CHSC_SCH is not set
|
||||
# CONFIG_SCM_BUS is not set
|
||||
CONFIG_CRASH_DUMP=y
|
||||
# CONFIG_SECCOMP is not set
|
||||
# CONFIG_PFAULT is not set
|
||||
# CONFIG_S390_HYPFS_FS is not set
|
||||
# CONFIG_VIRTUALIZATION is not set
|
||||
# CONFIG_S390_GUEST is not set
|
||||
# CONFIG_SECCOMP is not set
|
||||
CONFIG_PARTITION_ADVANCED=y
|
||||
CONFIG_IBM_PARTITION=y
|
||||
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
|
||||
|
@ -692,16 +692,6 @@ static inline int pud_large(pud_t pud)
|
||||
return !!(pud_val(pud) & _REGION3_ENTRY_LARGE);
|
||||
}
|
||||
|
||||
static inline unsigned long pud_pfn(pud_t pud)
|
||||
{
|
||||
unsigned long origin_mask;
|
||||
|
||||
origin_mask = _REGION_ENTRY_ORIGIN;
|
||||
if (pud_large(pud))
|
||||
origin_mask = _REGION3_ENTRY_ORIGIN_LARGE;
|
||||
return (pud_val(pud) & origin_mask) >> PAGE_SHIFT;
|
||||
}
|
||||
|
||||
#define pmd_leaf pmd_large
|
||||
static inline int pmd_large(pmd_t pmd)
|
||||
{
|
||||
@ -747,16 +737,6 @@ static inline int pmd_none(pmd_t pmd)
|
||||
return pmd_val(pmd) == _SEGMENT_ENTRY_EMPTY;
|
||||
}
|
||||
|
||||
static inline unsigned long pmd_pfn(pmd_t pmd)
|
||||
{
|
||||
unsigned long origin_mask;
|
||||
|
||||
origin_mask = _SEGMENT_ENTRY_ORIGIN;
|
||||
if (pmd_large(pmd))
|
||||
origin_mask = _SEGMENT_ENTRY_ORIGIN_LARGE;
|
||||
return (pmd_val(pmd) & origin_mask) >> PAGE_SHIFT;
|
||||
}
|
||||
|
||||
#define pmd_write pmd_write
|
||||
static inline int pmd_write(pmd_t pmd)
|
||||
{
|
||||
@ -1238,11 +1218,39 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
|
||||
#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
|
||||
#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
|
||||
|
||||
#define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
|
||||
#define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
|
||||
#define p4d_deref(pud) (p4d_val(pud) & _REGION_ENTRY_ORIGIN)
|
||||
#define pgd_deref(pgd) (pgd_val(pgd) & _REGION_ENTRY_ORIGIN)
|
||||
|
||||
static inline unsigned long pmd_deref(pmd_t pmd)
|
||||
{
|
||||
unsigned long origin_mask;
|
||||
|
||||
origin_mask = _SEGMENT_ENTRY_ORIGIN;
|
||||
if (pmd_large(pmd))
|
||||
origin_mask = _SEGMENT_ENTRY_ORIGIN_LARGE;
|
||||
return pmd_val(pmd) & origin_mask;
|
||||
}
|
||||
|
||||
static inline unsigned long pmd_pfn(pmd_t pmd)
|
||||
{
|
||||
return pmd_deref(pmd) >> PAGE_SHIFT;
|
||||
}
|
||||
|
||||
static inline unsigned long pud_deref(pud_t pud)
|
||||
{
|
||||
unsigned long origin_mask;
|
||||
|
||||
origin_mask = _REGION_ENTRY_ORIGIN;
|
||||
if (pud_large(pud))
|
||||
origin_mask = _REGION3_ENTRY_ORIGIN_LARGE;
|
||||
return pud_val(pud) & origin_mask;
|
||||
}
|
||||
|
||||
static inline unsigned long pud_pfn(pud_t pud)
|
||||
{
|
||||
return pud_deref(pud) >> PAGE_SHIFT;
|
||||
}
|
||||
|
||||
/*
|
||||
* The pgd_offset function *always* adds the index for the top-level
|
||||
* region/segment table. This is done to get a sequence like the
|
||||
|
@ -61,14 +61,6 @@ int main(void)
|
||||
BLANK();
|
||||
OFFSET(__VDSO_GETCPU_VAL, vdso_per_cpu_data, getcpu_val);
|
||||
BLANK();
|
||||
/* constants used by the vdso */
|
||||
DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME);
|
||||
DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC);
|
||||
DEFINE(__CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE);
|
||||
DEFINE(__CLOCK_MONOTONIC_COARSE, CLOCK_MONOTONIC_COARSE);
|
||||
DEFINE(__CLOCK_THREAD_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID);
|
||||
DEFINE(__CLOCK_COARSE_RES, LOW_RES_NSEC);
|
||||
BLANK();
|
||||
/* idle data offsets */
|
||||
OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter);
|
||||
OFFSET(__CLOCK_IDLE_EXIT, s390_idle_data, clock_idle_exit);
|
||||
|
@ -855,13 +855,14 @@ void __init smp_detect_cpus(void)
|
||||
|
||||
static void smp_init_secondary(void)
|
||||
{
|
||||
int cpu = smp_processor_id();
|
||||
int cpu = raw_smp_processor_id();
|
||||
|
||||
S390_lowcore.last_update_clock = get_tod_clock();
|
||||
restore_access_regs(S390_lowcore.access_regs_save_area);
|
||||
set_cpu_flag(CIF_ASCE_PRIMARY);
|
||||
set_cpu_flag(CIF_ASCE_SECONDARY);
|
||||
cpu_init();
|
||||
rcu_cpu_starting(cpu);
|
||||
preempt_disable();
|
||||
init_cpu_timer();
|
||||
vtime_init();
|
||||
|
@ -101,6 +101,10 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
|
||||
if (ret)
|
||||
break;
|
||||
|
||||
/* the PCI function will be scanned once function 0 appears */
|
||||
if (!zdev->zbus->bus)
|
||||
break;
|
||||
|
||||
pdev = pci_scan_single_device(zdev->zbus->bus, zdev->devfn);
|
||||
if (!pdev)
|
||||
break;
|
||||
|
@ -164,6 +164,7 @@ void initialize_identity_maps(void *rmode)
|
||||
add_identity_map(cmdline, cmdline + COMMAND_LINE_SIZE);
|
||||
|
||||
/* Load the new page-table. */
|
||||
sev_verify_cbit(top_level_pgt);
|
||||
write_cr3(top_level_pgt);
|
||||
}
|
||||
|
||||
|
@ -68,6 +68,9 @@ SYM_FUNC_START(get_sev_encryption_bit)
|
||||
SYM_FUNC_END(get_sev_encryption_bit)
|
||||
|
||||
.code64
|
||||
|
||||
#include "../../kernel/sev_verify_cbit.S"
|
||||
|
||||
SYM_FUNC_START(set_sev_encryption_mask)
|
||||
#ifdef CONFIG_AMD_MEM_ENCRYPT
|
||||
push %rbp
|
||||
@ -81,6 +84,19 @@ SYM_FUNC_START(set_sev_encryption_mask)
|
||||
|
||||
bts %rax, sme_me_mask(%rip) /* Create the encryption mask */
|
||||
|
||||
/*
|
||||
* Read MSR_AMD64_SEV again and store it to sev_status. Can't do this in
|
||||
* get_sev_encryption_bit() because this function is 32-bit code and
|
||||
* shared between 64-bit and 32-bit boot path.
|
||||
*/
|
||||
movl $MSR_AMD64_SEV, %ecx /* Read the SEV MSR */
|
||||
rdmsr
|
||||
|
||||
/* Store MSR value in sev_status */
|
||||
shlq $32, %rdx
|
||||
orq %rdx, %rax
|
||||
movq %rax, sev_status(%rip)
|
||||
|
||||
.Lno_sev_mask:
|
||||
movq %rbp, %rsp /* Restore original stack pointer */
|
||||
|
||||
@ -96,5 +112,7 @@ SYM_FUNC_END(set_sev_encryption_mask)
|
||||
|
||||
#ifdef CONFIG_AMD_MEM_ENCRYPT
|
||||
.balign 8
|
||||
SYM_DATA(sme_me_mask, .quad 0)
|
||||
SYM_DATA(sme_me_mask, .quad 0)
|
||||
SYM_DATA(sev_status, .quad 0)
|
||||
SYM_DATA(sev_check_data, .quad 0)
|
||||
#endif
|
||||
|
@ -159,4 +159,6 @@ void boot_page_fault(void);
|
||||
void boot_stage1_vc(void);
|
||||
void boot_stage2_vc(void);
|
||||
|
||||
unsigned long sev_verify_cbit(unsigned long cr3);
|
||||
|
||||
#endif /* BOOT_COMPRESSED_MISC_H */
|
||||
|
@ -273,11 +273,15 @@ void __init hv_apic_init(void)
|
||||
pr_info("Hyper-V: Using enlightened APIC (%s mode)",
|
||||
x2apic_enabled() ? "x2apic" : "xapic");
|
||||
/*
|
||||
* With x2apic, architectural x2apic MSRs are equivalent to the
|
||||
* respective synthetic MSRs, so there's no need to override
|
||||
* the apic accessors. The only exception is
|
||||
* hv_apic_eoi_write, because it benefits from lazy EOI when
|
||||
* available, but it works for both xapic and x2apic modes.
|
||||
* When in x2apic mode, don't use the Hyper-V specific APIC
|
||||
* accessors since the field layout in the ICR register is
|
||||
* different in x2apic mode. Furthermore, the architectural
|
||||
* x2apic MSRs function just as well as the Hyper-V
|
||||
* synthetic APIC MSRs, so there's no benefit in having
|
||||
* separate Hyper-V accessors for x2apic mode. The only
|
||||
* exception is hv_apic_eoi_write, because it benefits from
|
||||
* lazy EOI when available, but the same accessor works for
|
||||
* both xapic and x2apic because the field layout is the same.
|
||||
*/
|
||||
apic_set_eoi_write(hv_apic_eoi_write);
|
||||
if (!x2apic_enabled()) {
|
||||
|
@ -290,6 +290,9 @@ static void __init uv_stringify(int len, char *to, char *from)
|
||||
{
|
||||
/* Relies on 'to' being NULL chars so result will be NULL terminated */
|
||||
strncpy(to, from, len-1);
|
||||
|
||||
/* Trim trailing spaces */
|
||||
(void)strim(to);
|
||||
}
|
||||
|
||||
/* Find UV arch type entry in UVsystab */
|
||||
@ -366,7 +369,7 @@ static int __init early_get_arch_type(void)
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int __init uv_set_system_type(char *_oem_id)
|
||||
static int __init uv_set_system_type(char *_oem_id, char *_oem_table_id)
|
||||
{
|
||||
/* Save OEM_ID passed from ACPI MADT */
|
||||
uv_stringify(sizeof(oem_id), oem_id, _oem_id);
|
||||
@ -386,13 +389,23 @@ static int __init uv_set_system_type(char *_oem_id)
|
||||
/* (Not hubless), not a UV */
|
||||
return 0;
|
||||
|
||||
/* Is UV hubless system */
|
||||
uv_hubless_system = 0x01;
|
||||
|
||||
/* UV5 Hubless */
|
||||
if (strncmp(uv_archtype, "NSGI5", 5) == 0)
|
||||
uv_hubless_system |= 0x20;
|
||||
|
||||
/* UV4 Hubless: CH */
|
||||
if (strncmp(uv_archtype, "NSGI4", 5) == 0)
|
||||
uv_hubless_system = 0x11;
|
||||
else if (strncmp(uv_archtype, "NSGI4", 5) == 0)
|
||||
uv_hubless_system |= 0x10;
|
||||
|
||||
/* UV3 Hubless: UV300/MC990X w/o hub */
|
||||
else
|
||||
uv_hubless_system = 0x9;
|
||||
uv_hubless_system |= 0x8;
|
||||
|
||||
/* Copy APIC type */
|
||||
uv_stringify(sizeof(oem_table_id), oem_table_id, _oem_table_id);
|
||||
|
||||
pr_info("UV: OEM IDs %s/%s, SystemType %d, HUBLESS ID %x\n",
|
||||
oem_id, oem_table_id, uv_system_type, uv_hubless_system);
|
||||
@ -456,7 +469,7 @@ static int __init uv_acpi_madt_oem_check(char *_oem_id, char *_oem_table_id)
|
||||
uv_cpu_info->p_uv_hub_info = &uv_hub_info_node0;
|
||||
|
||||
/* If not UV, return. */
|
||||
if (likely(uv_set_system_type(_oem_id) == 0))
|
||||
if (uv_set_system_type(_oem_id, _oem_table_id) == 0)
|
||||
return 0;
|
||||
|
||||
/* Save and Decode OEM Table ID */
|
||||
|
@ -1254,6 +1254,14 @@ static int ssb_prctl_set(struct task_struct *task, unsigned long ctrl)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static bool is_spec_ib_user_controlled(void)
|
||||
{
|
||||
return spectre_v2_user_ibpb == SPECTRE_V2_USER_PRCTL ||
|
||||
spectre_v2_user_ibpb == SPECTRE_V2_USER_SECCOMP ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_PRCTL ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_SECCOMP;
|
||||
}
|
||||
|
||||
static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
|
||||
{
|
||||
switch (ctrl) {
|
||||
@ -1261,16 +1269,26 @@ static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
|
||||
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_NONE &&
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_NONE)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* Indirect branch speculation is always disabled in strict
|
||||
* mode. It can neither be enabled if it was force-disabled
|
||||
* by a previous prctl call.
|
||||
* With strict mode for both IBPB and STIBP, the instruction
|
||||
* code paths avoid checking this task flag and instead,
|
||||
* unconditionally run the instruction. However, STIBP and IBPB
|
||||
* are independent and either can be set to conditionally
|
||||
* enabled regardless of the mode of the other.
|
||||
*
|
||||
* If either is set to conditional, allow the task flag to be
|
||||
* updated, unless it was force-disabled by a previous prctl
|
||||
* call. Currently, this is possible on an AMD CPU which has the
|
||||
* feature X86_FEATURE_AMD_STIBP_ALWAYS_ON. In this case, if the
|
||||
* kernel is booted with 'spectre_v2_user=seccomp', then
|
||||
* spectre_v2_user_ibpb == SPECTRE_V2_USER_SECCOMP and
|
||||
* spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED.
|
||||
*/
|
||||
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED ||
|
||||
if (!is_spec_ib_user_controlled() ||
|
||||
task_spec_ib_force_disable(task))
|
||||
return -EPERM;
|
||||
|
||||
task_clear_spec_ib_disable(task);
|
||||
task_update_spec_tif(task);
|
||||
break;
|
||||
@ -1283,10 +1301,10 @@ static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
|
||||
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_NONE &&
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_NONE)
|
||||
return -EPERM;
|
||||
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED)
|
||||
|
||||
if (!is_spec_ib_user_controlled())
|
||||
return 0;
|
||||
|
||||
task_set_spec_ib_disable(task);
|
||||
if (ctrl == PR_SPEC_FORCE_DISABLE)
|
||||
task_set_spec_ib_force_disable(task);
|
||||
@ -1351,20 +1369,17 @@ static int ib_prctl_get(struct task_struct *task)
|
||||
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_NONE &&
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_NONE)
|
||||
return PR_SPEC_ENABLE;
|
||||
else if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED)
|
||||
return PR_SPEC_DISABLE;
|
||||
else if (spectre_v2_user_ibpb == SPECTRE_V2_USER_PRCTL ||
|
||||
spectre_v2_user_ibpb == SPECTRE_V2_USER_SECCOMP ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_PRCTL ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_SECCOMP) {
|
||||
else if (is_spec_ib_user_controlled()) {
|
||||
if (task_spec_ib_force_disable(task))
|
||||
return PR_SPEC_PRCTL | PR_SPEC_FORCE_DISABLE;
|
||||
if (task_spec_ib_disable(task))
|
||||
return PR_SPEC_PRCTL | PR_SPEC_DISABLE;
|
||||
return PR_SPEC_PRCTL | PR_SPEC_ENABLE;
|
||||
} else
|
||||
} else if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
|
||||
spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED)
|
||||
return PR_SPEC_DISABLE;
|
||||
else
|
||||
return PR_SPEC_NOT_AFFECTED;
|
||||
}
|
||||
|
||||
|
@ -161,6 +161,21 @@ SYM_INNER_LABEL(secondary_startup_64_no_verify, SYM_L_GLOBAL)
|
||||
|
||||
/* Setup early boot stage 4-/5-level pagetables. */
|
||||
addq phys_base(%rip), %rax
|
||||
|
||||
/*
|
||||
* For SEV guests: Verify that the C-bit is correct. A malicious
|
||||
* hypervisor could lie about the C-bit position to perform a ROP
|
||||
* attack on the guest by writing to the unencrypted stack and wait for
|
||||
* the next RET instruction.
|
||||
* %rsi carries pointer to realmode data and is callee-clobbered. Save
|
||||
* and restore it.
|
||||
*/
|
||||
pushq %rsi
|
||||
movq %rax, %rdi
|
||||
call sev_verify_cbit
|
||||
popq %rsi
|
||||
|
||||
/* Switch to new page-table */
|
||||
movq %rax, %cr3
|
||||
|
||||
/* Ensure I am executing from virtual addresses */
|
||||
@ -279,6 +294,7 @@ SYM_INNER_LABEL(secondary_startup_64_no_verify, SYM_L_GLOBAL)
|
||||
SYM_CODE_END(secondary_startup_64)
|
||||
|
||||
#include "verify_cpu.S"
|
||||
#include "sev_verify_cbit.S"
|
||||
|
||||
#ifdef CONFIG_HOTPLUG_CPU
|
||||
/*
|
||||
|
@ -178,6 +178,32 @@ void __init do_vc_no_ghcb(struct pt_regs *regs, unsigned long exit_code)
|
||||
goto fail;
|
||||
regs->dx = val >> 32;
|
||||
|
||||
/*
|
||||
* This is a VC handler and the #VC is only raised when SEV-ES is
|
||||
* active, which means SEV must be active too. Do sanity checks on the
|
||||
* CPUID results to make sure the hypervisor does not trick the kernel
|
||||
* into the no-sev path. This could map sensitive data unencrypted and
|
||||
* make it accessible to the hypervisor.
|
||||
*
|
||||
* In particular, check for:
|
||||
* - Hypervisor CPUID bit
|
||||
* - Availability of CPUID leaf 0x8000001f
|
||||
* - SEV CPUID bit.
|
||||
*
|
||||
* The hypervisor might still report the wrong C-bit position, but this
|
||||
* can't be checked here.
|
||||
*/
|
||||
|
||||
if ((fn == 1 && !(regs->cx & BIT(31))))
|
||||
/* Hypervisor bit */
|
||||
goto fail;
|
||||
else if (fn == 0x80000000 && (regs->ax < 0x8000001f))
|
||||
/* SEV leaf check */
|
||||
goto fail;
|
||||
else if ((fn == 0x8000001f && !(regs->ax & BIT(1))))
|
||||
/* SEV bit */
|
||||
goto fail;
|
||||
|
||||
/* Skip over the CPUID two-byte opcode */
|
||||
regs->ip += 2;
|
||||
|
||||
|
@ -374,8 +374,8 @@ fault:
|
||||
return ES_EXCEPTION;
|
||||
}
|
||||
|
||||
static bool vc_slow_virt_to_phys(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
|
||||
unsigned long vaddr, phys_addr_t *paddr)
|
||||
static enum es_result vc_slow_virt_to_phys(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
|
||||
unsigned long vaddr, phys_addr_t *paddr)
|
||||
{
|
||||
unsigned long va = (unsigned long)vaddr;
|
||||
unsigned int level;
|
||||
@ -394,15 +394,19 @@ static bool vc_slow_virt_to_phys(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
|
||||
if (user_mode(ctxt->regs))
|
||||
ctxt->fi.error_code |= X86_PF_USER;
|
||||
|
||||
return false;
|
||||
return ES_EXCEPTION;
|
||||
}
|
||||
|
||||
if (WARN_ON_ONCE(pte_val(*pte) & _PAGE_ENC))
|
||||
/* Emulated MMIO to/from encrypted memory not supported */
|
||||
return ES_UNSUPPORTED;
|
||||
|
||||
pa = (phys_addr_t)pte_pfn(*pte) << PAGE_SHIFT;
|
||||
pa |= va & ~page_level_mask(level);
|
||||
|
||||
*paddr = pa;
|
||||
|
||||
return true;
|
||||
return ES_OK;
|
||||
}
|
||||
|
||||
/* Include code shared with pre-decompression boot stage */
|
||||
@ -731,6 +735,7 @@ static enum es_result vc_do_mmio(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
|
||||
{
|
||||
u64 exit_code, exit_info_1, exit_info_2;
|
||||
unsigned long ghcb_pa = __pa(ghcb);
|
||||
enum es_result res;
|
||||
phys_addr_t paddr;
|
||||
void __user *ref;
|
||||
|
||||
@ -740,11 +745,12 @@ static enum es_result vc_do_mmio(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
|
||||
|
||||
exit_code = read ? SVM_VMGEXIT_MMIO_READ : SVM_VMGEXIT_MMIO_WRITE;
|
||||
|
||||
if (!vc_slow_virt_to_phys(ghcb, ctxt, (unsigned long)ref, &paddr)) {
|
||||
if (!read)
|
||||
res = vc_slow_virt_to_phys(ghcb, ctxt, (unsigned long)ref, &paddr);
|
||||
if (res != ES_OK) {
|
||||
if (res == ES_EXCEPTION && !read)
|
||||
ctxt->fi.error_code |= X86_PF_WRITE;
|
||||
|
||||
return ES_EXCEPTION;
|
||||
return res;
|
||||
}
|
||||
|
||||
exit_info_1 = paddr;
|
||||
|
89
arch/x86/kernel/sev_verify_cbit.S
Normal file
89
arch/x86/kernel/sev_verify_cbit.S
Normal file
@ -0,0 +1,89 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
/*
|
||||
* sev_verify_cbit.S - Code for verification of the C-bit position reported
|
||||
* by the Hypervisor when running with SEV enabled.
|
||||
*
|
||||
* Copyright (c) 2020 Joerg Roedel (jroedel@suse.de)
|
||||
*
|
||||
* sev_verify_cbit() is called before switching to a new long-mode page-table
|
||||
* at boot.
|
||||
*
|
||||
* Verify that the C-bit position is correct by writing a random value to
|
||||
* an encrypted memory location while on the current page-table. Then it
|
||||
* switches to the new page-table to verify the memory content is still the
|
||||
* same. After that it switches back to the current page-table and when the
|
||||
* check succeeded it returns. If the check failed the code invalidates the
|
||||
* stack pointer and goes into a hlt loop. The stack-pointer is invalidated to
|
||||
* make sure no interrupt or exception can get the CPU out of the hlt loop.
|
||||
*
|
||||
* New page-table pointer is expected in %rdi (first parameter)
|
||||
*
|
||||
*/
|
||||
SYM_FUNC_START(sev_verify_cbit)
|
||||
#ifdef CONFIG_AMD_MEM_ENCRYPT
|
||||
/* First check if a C-bit was detected */
|
||||
movq sme_me_mask(%rip), %rsi
|
||||
testq %rsi, %rsi
|
||||
jz 3f
|
||||
|
||||
/* sme_me_mask != 0 could mean SME or SEV - Check also for SEV */
|
||||
movq sev_status(%rip), %rsi
|
||||
testq %rsi, %rsi
|
||||
jz 3f
|
||||
|
||||
/* Save CR4 in %rsi */
|
||||
movq %cr4, %rsi
|
||||
|
||||
/* Disable Global Pages */
|
||||
movq %rsi, %rdx
|
||||
andq $(~X86_CR4_PGE), %rdx
|
||||
movq %rdx, %cr4
|
||||
|
||||
/*
|
||||
* Verified that running under SEV - now get a random value using
|
||||
* RDRAND. This instruction is mandatory when running as an SEV guest.
|
||||
*
|
||||
* Don't bail out of the loop if RDRAND returns errors. It is better to
|
||||
* prevent forward progress than to work with a non-random value here.
|
||||
*/
|
||||
1: rdrand %rdx
|
||||
jnc 1b
|
||||
|
||||
/* Store value to memory and keep it in %rdx */
|
||||
movq %rdx, sev_check_data(%rip)
|
||||
|
||||
/* Backup current %cr3 value to restore it later */
|
||||
movq %cr3, %rcx
|
||||
|
||||
/* Switch to new %cr3 - This might unmap the stack */
|
||||
movq %rdi, %cr3
|
||||
|
||||
/*
|
||||
* Compare value in %rdx with memory location. If C-bit is incorrect
|
||||
* this would read the encrypted data and make the check fail.
|
||||
*/
|
||||
cmpq %rdx, sev_check_data(%rip)
|
||||
|
||||
/* Restore old %cr3 */
|
||||
movq %rcx, %cr3
|
||||
|
||||
/* Restore previous CR4 */
|
||||
movq %rsi, %cr4
|
||||
|
||||
/* Check CMPQ result */
|
||||
je 3f
|
||||
|
||||
/*
|
||||
* The check failed, prevent any forward progress to prevent ROP
|
||||
* attacks, invalidate the stack and go into a hlt loop.
|
||||
*/
|
||||
xorq %rsp, %rsp
|
||||
subq $0x1000, %rsp
|
||||
2: hlt
|
||||
jmp 2b
|
||||
3:
|
||||
#endif
|
||||
/* Return page-table pointer */
|
||||
movq %rdi, %rax
|
||||
ret
|
||||
SYM_FUNC_END(sev_verify_cbit)
|
@ -16,8 +16,6 @@
|
||||
* to a jmp to memcpy_erms which does the REP; MOVSB mem copy.
|
||||
*/
|
||||
|
||||
.weak memcpy
|
||||
|
||||
/*
|
||||
* memcpy - Copy a memory block.
|
||||
*
|
||||
@ -30,7 +28,7 @@
|
||||
* rax original destination
|
||||
*/
|
||||
SYM_FUNC_START_ALIAS(__memcpy)
|
||||
SYM_FUNC_START_LOCAL(memcpy)
|
||||
SYM_FUNC_START_WEAK(memcpy)
|
||||
ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
|
||||
"jmp memcpy_erms", X86_FEATURE_ERMS
|
||||
|
||||
|
@ -24,9 +24,7 @@
|
||||
* Output:
|
||||
* rax: dest
|
||||
*/
|
||||
.weak memmove
|
||||
|
||||
SYM_FUNC_START_ALIAS(memmove)
|
||||
SYM_FUNC_START_WEAK(memmove)
|
||||
SYM_FUNC_START(__memmove)
|
||||
|
||||
mov %rdi, %rax
|
||||
|
@ -6,8 +6,6 @@
|
||||
#include <asm/alternative-asm.h>
|
||||
#include <asm/export.h>
|
||||
|
||||
.weak memset
|
||||
|
||||
/*
|
||||
* ISO C memset - set a memory block to a byte value. This function uses fast
|
||||
* string to get better performance than the original function. The code is
|
||||
@ -19,7 +17,7 @@
|
||||
*
|
||||
* rax original destination
|
||||
*/
|
||||
SYM_FUNC_START_ALIAS(memset)
|
||||
SYM_FUNC_START_WEAK(memset)
|
||||
SYM_FUNC_START(__memset)
|
||||
/*
|
||||
* Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
|
||||
|
@ -39,6 +39,7 @@
|
||||
*/
|
||||
u64 sme_me_mask __section(".data") = 0;
|
||||
u64 sev_status __section(".data") = 0;
|
||||
u64 sev_check_data __section(".data") = 0;
|
||||
EXPORT_SYMBOL(sme_me_mask);
|
||||
DEFINE_STATIC_KEY_FALSE(sev_enable_key);
|
||||
EXPORT_SYMBOL_GPL(sev_enable_key);
|
||||
|
@ -89,8 +89,8 @@ static void __init free_highpages(void)
|
||||
/* set highmem page free */
|
||||
for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE,
|
||||
&range_start, &range_end, NULL) {
|
||||
unsigned long start = PHYS_PFN(range_start);
|
||||
unsigned long end = PHYS_PFN(range_end);
|
||||
unsigned long start = PFN_UP(range_start);
|
||||
unsigned long end = PFN_DOWN(range_end);
|
||||
|
||||
/* Ignore complete lowmem entries */
|
||||
if (end <= max_low)
|
||||
|
@ -773,8 +773,7 @@ static void __device_link_del(struct kref *kref)
|
||||
dev_dbg(link->consumer, "Dropping the link to %s\n",
|
||||
dev_name(link->supplier));
|
||||
|
||||
if (link->flags & DL_FLAG_PM_RUNTIME)
|
||||
pm_runtime_drop_link(link->consumer);
|
||||
pm_runtime_drop_link(link);
|
||||
|
||||
list_del_rcu(&link->s_node);
|
||||
list_del_rcu(&link->c_node);
|
||||
@ -788,8 +787,7 @@ static void __device_link_del(struct kref *kref)
|
||||
dev_info(link->consumer, "Dropping the link to %s\n",
|
||||
dev_name(link->supplier));
|
||||
|
||||
if (link->flags & DL_FLAG_PM_RUNTIME)
|
||||
pm_runtime_drop_link(link->consumer);
|
||||
pm_runtime_drop_link(link);
|
||||
|
||||
list_del(&link->s_node);
|
||||
list_del(&link->c_node);
|
||||
|
@ -1117,6 +1117,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
|
||||
|
||||
drv = dev->driver;
|
||||
if (drv) {
|
||||
pm_runtime_get_sync(dev);
|
||||
|
||||
while (device_links_busy(dev)) {
|
||||
__device_driver_unlock(dev, parent);
|
||||
|
||||
@ -1128,13 +1130,12 @@ static void __device_release_driver(struct device *dev, struct device *parent)
|
||||
* have released the driver successfully while this one
|
||||
* was waiting, so check for that.
|
||||
*/
|
||||
if (dev->driver != drv)
|
||||
if (dev->driver != drv) {
|
||||
pm_runtime_put(dev);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
pm_runtime_get_sync(dev);
|
||||
pm_runtime_clean_up_links(dev);
|
||||
|
||||
driver_sysfs_remove(dev);
|
||||
|
||||
if (dev->bus)
|
||||
|
@ -1642,42 +1642,6 @@ void pm_runtime_remove(struct device *dev)
|
||||
pm_runtime_reinit(dev);
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clean_up_links - Prepare links to consumers for driver removal.
|
||||
* @dev: Device whose driver is going to be removed.
|
||||
*
|
||||
* Check links from this device to any consumers and if any of them have active
|
||||
* runtime PM references to the device, drop the usage counter of the device
|
||||
* (as many times as needed).
|
||||
*
|
||||
* Links with the DL_FLAG_MANAGED flag unset are ignored.
|
||||
*
|
||||
* Since the device is guaranteed to be runtime-active at the point this is
|
||||
* called, nothing else needs to be done here.
|
||||
*
|
||||
* Moreover, this is called after device_links_busy() has returned 'false', so
|
||||
* the status of each link is guaranteed to be DL_STATE_SUPPLIER_UNBIND and
|
||||
* therefore rpm_active can't be manipulated concurrently.
|
||||
*/
|
||||
void pm_runtime_clean_up_links(struct device *dev)
|
||||
{
|
||||
struct device_link *link;
|
||||
int idx;
|
||||
|
||||
idx = device_links_read_lock();
|
||||
|
||||
list_for_each_entry_rcu(link, &dev->links.consumers, s_node,
|
||||
device_links_read_lock_held()) {
|
||||
if (!(link->flags & DL_FLAG_MANAGED))
|
||||
continue;
|
||||
|
||||
while (refcount_dec_not_one(&link->rpm_active))
|
||||
pm_runtime_put_noidle(dev);
|
||||
}
|
||||
|
||||
device_links_read_unlock(idx);
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_get_suppliers - Resume and reference-count supplier devices.
|
||||
* @dev: Consumer device.
|
||||
@ -1729,7 +1693,7 @@ void pm_runtime_new_link(struct device *dev)
|
||||
spin_unlock_irq(&dev->power.lock);
|
||||
}
|
||||
|
||||
void pm_runtime_drop_link(struct device *dev)
|
||||
static void pm_runtime_drop_link_count(struct device *dev)
|
||||
{
|
||||
spin_lock_irq(&dev->power.lock);
|
||||
WARN_ON(dev->power.links_count == 0);
|
||||
@ -1737,6 +1701,25 @@ void pm_runtime_drop_link(struct device *dev)
|
||||
spin_unlock_irq(&dev->power.lock);
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_drop_link - Prepare for device link removal.
|
||||
* @link: Device link going away.
|
||||
*
|
||||
* Drop the link count of the consumer end of @link and decrement the supplier
|
||||
* device's runtime PM usage counter as many times as needed to drop all of the
|
||||
* PM runtime reference to it from the consumer.
|
||||
*/
|
||||
void pm_runtime_drop_link(struct device_link *link)
|
||||
{
|
||||
if (!(link->flags & DL_FLAG_PM_RUNTIME))
|
||||
return;
|
||||
|
||||
pm_runtime_drop_link_count(link->consumer);
|
||||
|
||||
while (refcount_dec_not_one(&link->rpm_active))
|
||||
pm_runtime_put(link->supplier);
|
||||
}
|
||||
|
||||
static bool pm_runtime_need_not_resume(struct device *dev)
|
||||
{
|
||||
return atomic_read(&dev->power.usage_count) <= 1 &&
|
||||
|
@ -47,7 +47,7 @@ struct nullb_device {
|
||||
unsigned int nr_zones_closed;
|
||||
struct blk_zone *zones;
|
||||
sector_t zone_size_sects;
|
||||
spinlock_t zone_dev_lock;
|
||||
spinlock_t zone_lock;
|
||||
unsigned long *zone_locks;
|
||||
|
||||
unsigned long size; /* device size in MB */
|
||||
|
@ -46,11 +46,20 @@ int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q)
|
||||
if (!dev->zones)
|
||||
return -ENOMEM;
|
||||
|
||||
spin_lock_init(&dev->zone_dev_lock);
|
||||
dev->zone_locks = bitmap_zalloc(dev->nr_zones, GFP_KERNEL);
|
||||
if (!dev->zone_locks) {
|
||||
kvfree(dev->zones);
|
||||
return -ENOMEM;
|
||||
/*
|
||||
* With memory backing, the zone_lock spinlock needs to be temporarily
|
||||
* released to avoid scheduling in atomic context. To guarantee zone
|
||||
* information protection, use a bitmap to lock zones with
|
||||
* wait_on_bit_lock_io(). Sleeping on the lock is OK as memory backing
|
||||
* implies that the queue is marked with BLK_MQ_F_BLOCKING.
|
||||
*/
|
||||
spin_lock_init(&dev->zone_lock);
|
||||
if (dev->memory_backed) {
|
||||
dev->zone_locks = bitmap_zalloc(dev->nr_zones, GFP_KERNEL);
|
||||
if (!dev->zone_locks) {
|
||||
kvfree(dev->zones);
|
||||
return -ENOMEM;
|
||||
}
|
||||
}
|
||||
|
||||
if (dev->zone_nr_conv >= dev->nr_zones) {
|
||||
@ -137,12 +146,17 @@ void null_free_zoned_dev(struct nullb_device *dev)
|
||||
|
||||
static inline void null_lock_zone(struct nullb_device *dev, unsigned int zno)
|
||||
{
|
||||
wait_on_bit_lock_io(dev->zone_locks, zno, TASK_UNINTERRUPTIBLE);
|
||||
if (dev->memory_backed)
|
||||
wait_on_bit_lock_io(dev->zone_locks, zno, TASK_UNINTERRUPTIBLE);
|
||||
spin_lock_irq(&dev->zone_lock);
|
||||
}
|
||||
|
||||
static inline void null_unlock_zone(struct nullb_device *dev, unsigned int zno)
|
||||
{
|
||||
clear_and_wake_up_bit(zno, dev->zone_locks);
|
||||
spin_unlock_irq(&dev->zone_lock);
|
||||
|
||||
if (dev->memory_backed)
|
||||
clear_and_wake_up_bit(zno, dev->zone_locks);
|
||||
}
|
||||
|
||||
int null_report_zones(struct gendisk *disk, sector_t sector,
|
||||
@ -322,7 +336,6 @@ static blk_status_t null_zone_write(struct nullb_cmd *cmd, sector_t sector,
|
||||
return null_process_cmd(cmd, REQ_OP_WRITE, sector, nr_sectors);
|
||||
|
||||
null_lock_zone(dev, zno);
|
||||
spin_lock(&dev->zone_dev_lock);
|
||||
|
||||
switch (zone->cond) {
|
||||
case BLK_ZONE_COND_FULL:
|
||||
@ -375,9 +388,17 @@ static blk_status_t null_zone_write(struct nullb_cmd *cmd, sector_t sector,
|
||||
if (zone->cond != BLK_ZONE_COND_EXP_OPEN)
|
||||
zone->cond = BLK_ZONE_COND_IMP_OPEN;
|
||||
|
||||
spin_unlock(&dev->zone_dev_lock);
|
||||
/*
|
||||
* Memory backing allocation may sleep: release the zone_lock spinlock
|
||||
* to avoid scheduling in atomic context. Zone operation atomicity is
|
||||
* still guaranteed through the zone_locks bitmap.
|
||||
*/
|
||||
if (dev->memory_backed)
|
||||
spin_unlock_irq(&dev->zone_lock);
|
||||
ret = null_process_cmd(cmd, REQ_OP_WRITE, sector, nr_sectors);
|
||||
spin_lock(&dev->zone_dev_lock);
|
||||
if (dev->memory_backed)
|
||||
spin_lock_irq(&dev->zone_lock);
|
||||
|
||||
if (ret != BLK_STS_OK)
|
||||
goto unlock;
|
||||
|
||||
@ -392,7 +413,6 @@ static blk_status_t null_zone_write(struct nullb_cmd *cmd, sector_t sector,
|
||||
ret = BLK_STS_OK;
|
||||
|
||||
unlock:
|
||||
spin_unlock(&dev->zone_dev_lock);
|
||||
null_unlock_zone(dev, zno);
|
||||
|
||||
return ret;
|
||||
@ -516,9 +536,7 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op,
|
||||
null_lock_zone(dev, i);
|
||||
zone = &dev->zones[i];
|
||||
if (zone->cond != BLK_ZONE_COND_EMPTY) {
|
||||
spin_lock(&dev->zone_dev_lock);
|
||||
null_reset_zone(dev, zone);
|
||||
spin_unlock(&dev->zone_dev_lock);
|
||||
trace_nullb_zone_op(cmd, i, zone->cond);
|
||||
}
|
||||
null_unlock_zone(dev, i);
|
||||
@ -530,7 +548,6 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op,
|
||||
zone = &dev->zones[zone_no];
|
||||
|
||||
null_lock_zone(dev, zone_no);
|
||||
spin_lock(&dev->zone_dev_lock);
|
||||
|
||||
switch (op) {
|
||||
case REQ_OP_ZONE_RESET:
|
||||
@ -550,8 +567,6 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op,
|
||||
break;
|
||||
}
|
||||
|
||||
spin_unlock(&dev->zone_dev_lock);
|
||||
|
||||
if (ret == BLK_STS_OK)
|
||||
trace_nullb_zone_op(cmd, zone_no, zone->cond);
|
||||
|
||||
|
@ -41,6 +41,11 @@ int tpm_read_log_efi(struct tpm_chip *chip)
|
||||
log_size = log_tbl->size;
|
||||
memunmap(log_tbl);
|
||||
|
||||
if (!log_size) {
|
||||
pr_warn("UEFI TPM log area empty\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
log_tbl = memremap(efi.tpm_log, sizeof(*log_tbl) + log_size,
|
||||
MEMREMAP_WB);
|
||||
if (!log_tbl) {
|
||||
|
@ -27,6 +27,7 @@
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/dmi.h>
|
||||
#include "tpm.h"
|
||||
#include "tpm_tis_core.h"
|
||||
|
||||
@ -49,8 +50,8 @@ static inline struct tpm_tis_tcg_phy *to_tpm_tis_tcg_phy(struct tpm_tis_data *da
|
||||
return container_of(data, struct tpm_tis_tcg_phy, priv);
|
||||
}
|
||||
|
||||
static bool interrupts = true;
|
||||
module_param(interrupts, bool, 0444);
|
||||
static int interrupts = -1;
|
||||
module_param(interrupts, int, 0444);
|
||||
MODULE_PARM_DESC(interrupts, "Enable interrupts");
|
||||
|
||||
static bool itpm;
|
||||
@ -63,6 +64,28 @@ module_param(force, bool, 0444);
|
||||
MODULE_PARM_DESC(force, "Force device probe rather than using ACPI entry");
|
||||
#endif
|
||||
|
||||
static int tpm_tis_disable_irq(const struct dmi_system_id *d)
|
||||
{
|
||||
if (interrupts == -1) {
|
||||
pr_notice("tpm_tis: %s detected: disabling interrupts.\n", d->ident);
|
||||
interrupts = 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dmi_system_id tpm_tis_dmi_table[] = {
|
||||
{
|
||||
.callback = tpm_tis_disable_irq,
|
||||
.ident = "ThinkPad T490s",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
||||
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T490s"),
|
||||
},
|
||||
},
|
||||
{}
|
||||
};
|
||||
|
||||
#if defined(CONFIG_PNP) && defined(CONFIG_ACPI)
|
||||
static int has_hid(struct acpi_device *dev, const char *hid)
|
||||
{
|
||||
@ -192,6 +215,8 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info)
|
||||
int irq = -1;
|
||||
int rc;
|
||||
|
||||
dmi_check_system(tpm_tis_dmi_table);
|
||||
|
||||
rc = check_acpi_tpm2(dev);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
@ -7,7 +7,7 @@
|
||||
*
|
||||
* This file add support for MD5 and SHA1/SHA224/SHA256/SHA384/SHA512.
|
||||
*
|
||||
* You could find the datasheet in Documentation/arm/sunxi/README
|
||||
* You could find the datasheet in Documentation/arm/sunxi.rst
|
||||
*/
|
||||
#include <linux/dma-mapping.h>
|
||||
#include <linux/pm_runtime.h>
|
||||
|
@ -7,7 +7,7 @@
|
||||
*
|
||||
* This file handle the PRNG
|
||||
*
|
||||
* You could find a link for the datasheet in Documentation/arm/sunxi/README
|
||||
* You could find a link for the datasheet in Documentation/arm/sunxi.rst
|
||||
*/
|
||||
#include "sun8i-ce.h"
|
||||
#include <linux/dma-mapping.h>
|
||||
|
@ -7,7 +7,7 @@
|
||||
*
|
||||
* This file handle the TRNG
|
||||
*
|
||||
* You could find a link for the datasheet in Documentation/arm/sunxi/README
|
||||
* You could find a link for the datasheet in Documentation/arm/sunxi.rst
|
||||
*/
|
||||
#include "sun8i-ce.h"
|
||||
#include <linux/dma-mapping.h>
|
||||
|
@ -55,7 +55,8 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
|
||||
amdgpu_vf_error.o amdgpu_sched.o amdgpu_debugfs.o amdgpu_ids.o \
|
||||
amdgpu_gmc.o amdgpu_mmhub.o amdgpu_xgmi.o amdgpu_csa.o amdgpu_ras.o amdgpu_vm_cpu.o \
|
||||
amdgpu_vm_sdma.o amdgpu_discovery.o amdgpu_ras_eeprom.o amdgpu_nbio.o \
|
||||
amdgpu_umc.o smu_v11_0_i2c.o amdgpu_fru_eeprom.o amdgpu_rap.o
|
||||
amdgpu_umc.o smu_v11_0_i2c.o amdgpu_fru_eeprom.o amdgpu_rap.o \
|
||||
amdgpu_fw_attestation.o
|
||||
|
||||
amdgpu-$(CONFIG_PERF_EVENTS) += amdgpu_pmu.o
|
||||
|
||||
@ -69,7 +70,8 @@ amdgpu-$(CONFIG_DRM_AMDGPU_SI)+= si.o gmc_v6_0.o gfx_v6_0.o si_ih.o si_dma.o dce
|
||||
amdgpu-y += \
|
||||
vi.o mxgpu_vi.o nbio_v6_1.o soc15.o emu_soc.o mxgpu_ai.o nbio_v7_0.o vega10_reg_init.o \
|
||||
vega20_reg_init.o nbio_v7_4.o nbio_v2_3.o nv.o navi10_reg_init.o navi14_reg_init.o \
|
||||
arct_reg_init.o navi12_reg_init.o mxgpu_nv.o sienna_cichlid_reg_init.o
|
||||
arct_reg_init.o navi12_reg_init.o mxgpu_nv.o sienna_cichlid_reg_init.o vangogh_reg_init.o \
|
||||
nbio_v7_2.o dimgrey_cavefish_reg_init.o
|
||||
|
||||
# add DF block
|
||||
amdgpu-y += \
|
||||
@ -81,7 +83,7 @@ amdgpu-y += \
|
||||
gmc_v7_0.o \
|
||||
gmc_v8_0.o \
|
||||
gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o gfxhub_v1_1.o mmhub_v9_4.o \
|
||||
gfxhub_v2_0.o mmhub_v2_0.o gmc_v10_0.o gfxhub_v2_1.o
|
||||
gfxhub_v2_0.o mmhub_v2_0.o gmc_v10_0.o gfxhub_v2_1.o mmhub_v2_3.o
|
||||
|
||||
# add UMC block
|
||||
amdgpu-y += \
|
||||
|
@ -623,6 +623,8 @@ struct amdgpu_asic_funcs {
|
||||
bool (*supports_baco)(struct amdgpu_device *adev);
|
||||
/* pre asic_init quirks */
|
||||
void (*pre_asic_init)(struct amdgpu_device *adev);
|
||||
/* enter/exit umd stable pstate */
|
||||
int (*update_umd_stable_pstate)(struct amdgpu_device *adev, bool enter);
|
||||
};
|
||||
|
||||
/*
|
||||
@ -723,6 +725,45 @@ struct amd_powerplay {
|
||||
const struct amd_pm_funcs *pp_funcs;
|
||||
};
|
||||
|
||||
/* polaris10 kickers */
|
||||
#define ASICID_IS_P20(did, rid) (((did == 0x67DF) && \
|
||||
((rid == 0xE3) || \
|
||||
(rid == 0xE4) || \
|
||||
(rid == 0xE5) || \
|
||||
(rid == 0xE7) || \
|
||||
(rid == 0xEF))) || \
|
||||
((did == 0x6FDF) && \
|
||||
((rid == 0xE7) || \
|
||||
(rid == 0xEF) || \
|
||||
(rid == 0xFF))))
|
||||
|
||||
#define ASICID_IS_P30(did, rid) ((did == 0x67DF) && \
|
||||
((rid == 0xE1) || \
|
||||
(rid == 0xF7)))
|
||||
|
||||
/* polaris11 kickers */
|
||||
#define ASICID_IS_P21(did, rid) (((did == 0x67EF) && \
|
||||
((rid == 0xE0) || \
|
||||
(rid == 0xE5))) || \
|
||||
((did == 0x67FF) && \
|
||||
((rid == 0xCF) || \
|
||||
(rid == 0xEF) || \
|
||||
(rid == 0xFF))))
|
||||
|
||||
#define ASICID_IS_P31(did, rid) ((did == 0x67EF) && \
|
||||
((rid == 0xE2)))
|
||||
|
||||
/* polaris12 kickers */
|
||||
#define ASICID_IS_P23(did, rid) (((did == 0x6987) && \
|
||||
((rid == 0xC0) || \
|
||||
(rid == 0xC1) || \
|
||||
(rid == 0xC3) || \
|
||||
(rid == 0xC7))) || \
|
||||
((did == 0x6981) && \
|
||||
((rid == 0x00) || \
|
||||
(rid == 0x01) || \
|
||||
(rid == 0x10))))
|
||||
|
||||
#define AMDGPU_RESET_MAGIC_NUM 64
|
||||
#define AMDGPU_MAX_DF_PERFMONS 4
|
||||
struct amdgpu_device {
|
||||
@ -1165,6 +1206,8 @@ int emu_soc_asic_init(struct amdgpu_device *adev);
|
||||
#define amdgpu_asic_get_pcie_replay_count(adev) ((adev)->asic_funcs->get_pcie_replay_count((adev)))
|
||||
#define amdgpu_asic_supports_baco(adev) (adev)->asic_funcs->supports_baco((adev))
|
||||
#define amdgpu_asic_pre_asic_init(adev) (adev)->asic_funcs->pre_asic_init((adev))
|
||||
#define amdgpu_asic_update_umd_stable_pstate(adev, enter) \
|
||||
((adev)->asic_funcs->update_umd_stable_pstate ? (adev)->asic_funcs->update_umd_stable_pstate((adev), (enter)) : 0)
|
||||
|
||||
#define amdgpu_inc_vram_lost(adev) atomic_inc(&((adev)->vram_lost_counter));
|
||||
|
||||
@ -1294,19 +1337,6 @@ bool amdgpu_device_load_pci_state(struct pci_dev *pdev);
|
||||
|
||||
#include "amdgpu_object.h"
|
||||
|
||||
/* used by df_v3_6.c and amdgpu_pmu.c */
|
||||
#define AMDGPU_PMU_ATTR(_name, _object) \
|
||||
static ssize_t \
|
||||
_name##_show(struct device *dev, \
|
||||
struct device_attribute *attr, \
|
||||
char *page) \
|
||||
{ \
|
||||
BUILD_BUG_ON(sizeof(_object) >= PAGE_SIZE - 1); \
|
||||
return sprintf(page, _object "\n"); \
|
||||
} \
|
||||
\
|
||||
static struct device_attribute pmu_attr_##_name = __ATTR_RO(_name)
|
||||
|
||||
static inline bool amdgpu_is_tmz(struct amdgpu_device *adev)
|
||||
{
|
||||
return adev->gmc.tmz_enabled;
|
||||
|
@ -36,17 +36,17 @@
|
||||
|
||||
#include "acp_gfx_if.h"
|
||||
|
||||
#define ACP_TILE_ON_MASK 0x03
|
||||
#define ACP_TILE_OFF_MASK 0x02
|
||||
#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
|
||||
#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
|
||||
#define ACP_TILE_ON_MASK 0x03
|
||||
#define ACP_TILE_OFF_MASK 0x02
|
||||
#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
|
||||
#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
|
||||
|
||||
#define ACP_TILE_P1_MASK 0x3e
|
||||
#define ACP_TILE_P2_MASK 0x3d
|
||||
#define ACP_TILE_DSP0_MASK 0x3b
|
||||
#define ACP_TILE_DSP1_MASK 0x37
|
||||
#define ACP_TILE_P1_MASK 0x3e
|
||||
#define ACP_TILE_P2_MASK 0x3d
|
||||
#define ACP_TILE_DSP0_MASK 0x3b
|
||||
#define ACP_TILE_DSP1_MASK 0x37
|
||||
|
||||
#define ACP_TILE_DSP2_MASK 0x2f
|
||||
#define ACP_TILE_DSP2_MASK 0x2f
|
||||
|
||||
#define ACP_DMA_REGS_END 0x146c0
|
||||
#define ACP_I2S_PLAY_REGS_START 0x14840
|
||||
@ -75,8 +75,8 @@
|
||||
#define mmACP_CONTROL 0x5131
|
||||
#define mmACP_STATUS 0x5133
|
||||
#define mmACP_SOFT_RESET 0x5134
|
||||
#define ACP_CONTROL__ClkEn_MASK 0x1
|
||||
#define ACP_SOFT_RESET__SoftResetAud_MASK 0x100
|
||||
#define ACP_CONTROL__ClkEn_MASK 0x1
|
||||
#define ACP_SOFT_RESET__SoftResetAud_MASK 0x100
|
||||
#define ACP_SOFT_RESET__SoftResetAudDone_MASK 0x1000000
|
||||
#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
|
||||
#define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
|
||||
|
@ -390,23 +390,17 @@ void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd,
|
||||
struct kfd_local_mem_info *mem_info)
|
||||
{
|
||||
struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
|
||||
uint64_t address_mask = adev->dev->dma_mask ? ~*adev->dev->dma_mask :
|
||||
~((1ULL << 32) - 1);
|
||||
resource_size_t aper_limit = adev->gmc.aper_base + adev->gmc.aper_size;
|
||||
|
||||
memset(mem_info, 0, sizeof(*mem_info));
|
||||
if (!(adev->gmc.aper_base & address_mask || aper_limit & address_mask)) {
|
||||
mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
|
||||
mem_info->local_mem_size_private = adev->gmc.real_vram_size -
|
||||
adev->gmc.visible_vram_size;
|
||||
} else {
|
||||
mem_info->local_mem_size_public = 0;
|
||||
mem_info->local_mem_size_private = adev->gmc.real_vram_size;
|
||||
}
|
||||
|
||||
mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
|
||||
mem_info->local_mem_size_private = adev->gmc.real_vram_size -
|
||||
adev->gmc.visible_vram_size;
|
||||
|
||||
mem_info->vram_width = adev->gmc.vram_width;
|
||||
|
||||
pr_debug("Address base: %pap limit %pap public 0x%llx private 0x%llx\n",
|
||||
&adev->gmc.aper_base, &aper_limit,
|
||||
pr_debug("Address base: %pap public 0x%llx private 0x%llx\n",
|
||||
&adev->gmc.aper_base,
|
||||
mem_info->local_mem_size_public,
|
||||
mem_info->local_mem_size_private);
|
||||
|
||||
@ -648,6 +642,13 @@ void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle)
|
||||
{
|
||||
struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
|
||||
|
||||
/* Temp workaround to fix the soft hang observed in certain compute
|
||||
* applications if GFXOFF is enabled.
|
||||
*/
|
||||
if (adev->asic_type == CHIP_SIENNA_CICHLID) {
|
||||
pr_debug("GFXOFF is %s\n", idle ? "enabled" : "disabled");
|
||||
amdgpu_gfx_off_ctrl(adev, idle);
|
||||
}
|
||||
amdgpu_dpm_switch_power_profile(adev,
|
||||
PP_SMC_POWER_PROFILE_COMPUTE,
|
||||
!idle);
|
||||
|
@ -304,4 +304,5 @@ const struct kfd2kgd_calls arcturus_kfd2kgd = {
|
||||
kgd_gfx_v9_get_atc_vmid_pasid_mapping_info,
|
||||
.set_vm_context_page_table_base =
|
||||
kgd_gfx_v9_set_vm_context_page_table_base,
|
||||
.get_cu_occupancy = kgd_gfx_v9_get_cu_occupancy
|
||||
};
|
||||
|
@ -799,7 +799,7 @@ static void get_wave_count(struct amdgpu_device *adev, int queue_idx,
|
||||
*
|
||||
* Reading registers referenced above involves programming GRBM appropriately
|
||||
*/
|
||||
static void kgd_gfx_v9_get_cu_occupancy(struct kgd_dev *kgd, int pasid,
|
||||
void kgd_gfx_v9_get_cu_occupancy(struct kgd_dev *kgd, int pasid,
|
||||
int *pasid_wave_cnt, int *max_waves_per_cu)
|
||||
{
|
||||
int qidx;
|
||||
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user