forked from Minki/linux
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The phylink conflict was between a bug fix by Russell King
to make sure we have a consistent PHY interface mode, and
a change in net-next to pull some code in phylink_resolve()
into the helper functions phylink_mac_link_{up,down}()
On the dp83867 side it's mostly overlapping changes, with
the 'net' side removing a condition that was supposed to
trigger for RGMII but because of how it was coded never
actually could trigger.
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
commit
b4b12b0d2f
@ -1,29 +0,0 @@
|
||||
What: /sys/bus/mdio_bus/devices/.../phy_id
|
||||
Date: November 2012
|
||||
KernelVersion: 3.8
|
||||
Contact: netdev@vger.kernel.org
|
||||
Description:
|
||||
This attribute contains the 32-bit PHY Identifier as reported
|
||||
by the device during bus enumeration, encoded in hexadecimal.
|
||||
This ID is used to match the device with the appropriate
|
||||
driver.
|
||||
|
||||
What: /sys/bus/mdio_bus/devices/.../phy_interface
|
||||
Date: February 2014
|
||||
KernelVersion: 3.15
|
||||
Contact: netdev@vger.kernel.org
|
||||
Description:
|
||||
This attribute contains the PHY interface as configured by the
|
||||
Ethernet driver during bus enumeration, encoded in string.
|
||||
This interface mode is used to configure the Ethernet MAC with the
|
||||
appropriate mode for its data lines to the PHY hardware.
|
||||
|
||||
What: /sys/bus/mdio_bus/devices/.../phy_has_fixups
|
||||
Date: February 2014
|
||||
KernelVersion: 3.15
|
||||
Contact: netdev@vger.kernel.org
|
||||
Description:
|
||||
This attribute contains the boolean value whether a given PHY
|
||||
device has had any "fixup" workaround running on it, encoded as
|
||||
a boolean. This information is provided to help troubleshooting
|
||||
PHY configurations.
|
||||
@ -11,24 +11,31 @@ Date: February 2014
|
||||
KernelVersion: 3.15
|
||||
Contact: netdev@vger.kernel.org
|
||||
Description:
|
||||
Boolean value indicating whether the PHY device has
|
||||
any fixups registered against it (phy_register_fixup)
|
||||
This attribute contains the boolean value whether a given PHY
|
||||
device has had any "fixup" workaround running on it, encoded as
|
||||
a boolean. This information is provided to help troubleshooting
|
||||
PHY configurations.
|
||||
|
||||
What: /sys/class/mdio_bus/<bus>/<device>/phy_id
|
||||
Date: November 2012
|
||||
KernelVersion: 3.8
|
||||
Contact: netdev@vger.kernel.org
|
||||
Description:
|
||||
32-bit hexadecimal value corresponding to the PHY device's OUI,
|
||||
model and revision number.
|
||||
This attribute contains the 32-bit PHY Identifier as reported
|
||||
by the device during bus enumeration, encoded in hexadecimal.
|
||||
This ID is used to match the device with the appropriate
|
||||
driver.
|
||||
|
||||
What: /sys/class/mdio_bus/<bus>/<device>/phy_interface
|
||||
Date: February 2014
|
||||
KernelVersion: 3.15
|
||||
Contact: netdev@vger.kernel.org
|
||||
Description:
|
||||
String value indicating the PHY interface, possible
|
||||
values are:.
|
||||
This attribute contains the PHY interface as configured by the
|
||||
Ethernet driver during bus enumeration, encoded in string.
|
||||
This interface mode is used to configure the Ethernet MAC with the
|
||||
appropriate mode for its data lines to the PHY hardware.
|
||||
Possible values are:
|
||||
<empty> (not available), mii, gmii, sgmii, tbi, rev-mii,
|
||||
rmii, rgmii, rgmii-id, rgmii-rxid, rgmii-txid, rtbi, smii
|
||||
xgmii, moca, qsgmii, trgmii, 1000base-x, 2500base-x, rxaui,
|
||||
|
||||
@ -31,6 +31,7 @@ the Linux memory management.
|
||||
ksm
|
||||
memory-hotplug
|
||||
numa_memory_policy
|
||||
numaperf
|
||||
pagemap
|
||||
soft-dirty
|
||||
transhuge
|
||||
|
||||
@ -15,7 +15,7 @@ characteristics. Some memory may share the same node as a CPU, and others
|
||||
are provided as memory only nodes. While memory only nodes do not provide
|
||||
CPUs, they may still be local to one or more compute nodes relative to
|
||||
other nodes. The following diagram shows one such example of two compute
|
||||
nodes with local memory and a memory only node for each of compute node:
|
||||
nodes with local memory and a memory only node for each of compute node::
|
||||
|
||||
+------------------+ +------------------+
|
||||
| Compute Node 0 +-----+ Compute Node 1 |
|
||||
|
||||
@ -58,13 +58,14 @@ stable kernels.
|
||||
| ARM | Cortex-A72 | #853709 | N/A |
|
||||
| ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 |
|
||||
| ARM | Cortex-A55 | #1024718 | ARM64_ERRATUM_1024718 |
|
||||
| ARM | Cortex-A76 | #1188873 | ARM64_ERRATUM_1188873 |
|
||||
| ARM | Cortex-A76 | #1188873,1418040| ARM64_ERRATUM_1418040 |
|
||||
| ARM | Cortex-A76 | #1165522 | ARM64_ERRATUM_1165522 |
|
||||
| ARM | Cortex-A76 | #1286807 | ARM64_ERRATUM_1286807 |
|
||||
| ARM | Neoverse-N1 | #1188873 | ARM64_ERRATUM_1188873 |
|
||||
| ARM | MMU-500 | #841119,#826419 | N/A |
|
||||
| ARM | Cortex-A76 | #1463225 | ARM64_ERRATUM_1463225 |
|
||||
| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
|
||||
| ARM | MMU-500 | #841119,826419 | N/A |
|
||||
| | | | |
|
||||
| Cavium | ThunderX ITS | #22375, #24313 | CAVIUM_ERRATUM_22375 |
|
||||
| Cavium | ThunderX ITS | #22375,24313 | CAVIUM_ERRATUM_22375 |
|
||||
| Cavium | ThunderX ITS | #23144 | CAVIUM_ERRATUM_23144 |
|
||||
| Cavium | ThunderX GICv3 | #23154 | CAVIUM_ERRATUM_23154 |
|
||||
| Cavium | ThunderX Core | #27456 | CAVIUM_ERRATUM_27456 |
|
||||
|
||||
@ -37,7 +37,7 @@ needs_sphinx = '1.3'
|
||||
extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', 'cdomain', 'kfigure', 'sphinx.ext.ifconfig']
|
||||
|
||||
# The name of the math extension changed on Sphinx 1.4
|
||||
if major == 1 and minor > 3:
|
||||
if (major == 1 and minor > 3) or (major > 1):
|
||||
extensions.append("sphinx.ext.imgmath")
|
||||
else:
|
||||
extensions.append("sphinx.ext.pngmath")
|
||||
|
||||
@ -5,7 +5,7 @@ DT_MK_SCHEMA ?= dt-mk-schema
|
||||
DT_MK_SCHEMA_FLAGS := $(if $(DT_SCHEMA_FILES), -u)
|
||||
|
||||
quiet_cmd_chk_binding = CHKDT $(patsubst $(srctree)/%,%,$<)
|
||||
cmd_chk_binding = $(DT_DOC_CHECKER) $< ; \
|
||||
cmd_chk_binding = $(DT_DOC_CHECKER) -u $(srctree)/$(src) $< ; \
|
||||
$(DT_EXTRACT_EX) $< > $@
|
||||
|
||||
$(obj)/%.example.dts: $(src)/%.yaml FORCE
|
||||
|
||||
@ -216,7 +216,7 @@ Example:
|
||||
#size-cells = <0>;
|
||||
|
||||
A57_0: cpu@0 {
|
||||
compatible = "arm,cortex-a57","arm,armv8";
|
||||
compatible = "arm,cortex-a57";
|
||||
reg = <0x0 0x0>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
@ -225,7 +225,7 @@ Example:
|
||||
.....
|
||||
|
||||
A53_0: cpu@100 {
|
||||
compatible = "arm,cortex-a53","arm,armv8";
|
||||
compatible = "arm,cortex-a53";
|
||||
reg = <0x0 0x100>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
|
||||
@ -118,7 +118,7 @@ cpus {
|
||||
};
|
||||
|
||||
A57_0: cpu@0 {
|
||||
compatible = "arm,cortex-a57","arm,armv8";
|
||||
compatible = "arm,cortex-a57";
|
||||
reg = <0x0 0x0>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
@ -129,7 +129,7 @@ cpus {
|
||||
};
|
||||
|
||||
A57_1: cpu@1 {
|
||||
compatible = "arm,cortex-a57","arm,armv8";
|
||||
compatible = "arm,cortex-a57";
|
||||
reg = <0x0 0x1>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
@ -140,7 +140,7 @@ cpus {
|
||||
};
|
||||
|
||||
A53_0: cpu@100 {
|
||||
compatible = "arm,cortex-a53","arm,armv8";
|
||||
compatible = "arm,cortex-a53";
|
||||
reg = <0x0 0x100>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
@ -151,7 +151,7 @@ cpus {
|
||||
};
|
||||
|
||||
A53_1: cpu@101 {
|
||||
compatible = "arm,cortex-a53","arm,armv8";
|
||||
compatible = "arm,cortex-a53";
|
||||
reg = <0x0 0x101>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
@ -162,7 +162,7 @@ cpus {
|
||||
};
|
||||
|
||||
A53_2: cpu@102 {
|
||||
compatible = "arm,cortex-a53","arm,armv8";
|
||||
compatible = "arm,cortex-a53";
|
||||
reg = <0x0 0x102>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
@ -173,7 +173,7 @@ cpus {
|
||||
};
|
||||
|
||||
A53_3: cpu@103 {
|
||||
compatible = "arm,cortex-a53","arm,armv8";
|
||||
compatible = "arm,cortex-a53";
|
||||
reg = <0x0 0x103>;
|
||||
device_type = "cpu";
|
||||
enable-method = "psci";
|
||||
|
||||
@ -41,7 +41,7 @@ Examples:
|
||||
Consumer:
|
||||
========
|
||||
See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt and
|
||||
Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt for
|
||||
Documentation/devicetree/bindings/interrupt-controller/arm,gic.yaml for
|
||||
further details.
|
||||
|
||||
An interrupt consumer on an SoC using crossbar will use:
|
||||
|
||||
@ -35,7 +35,7 @@ board device tree, including the system base clock, as selected by XOM[0]
|
||||
pin of the SoC. Refer to generic fixed rate clock bindings
|
||||
documentation[1] for more information how to specify these clocks.
|
||||
|
||||
[1] Documentation/devicetree/bindings/clock/fixed-clock.txt
|
||||
[1] Documentation/devicetree/bindings/clock/fixed-clock.yaml
|
||||
|
||||
Example: Clock controller node:
|
||||
|
||||
|
||||
@ -92,6 +92,8 @@ properties:
|
||||
minItems: 2
|
||||
maxItems: 4
|
||||
|
||||
ranges: true
|
||||
|
||||
interrupts:
|
||||
description: Interrupt source of the parent interrupt controller on
|
||||
secondary GICs, or VGIC maintenance interrupt on primary GIC (see
|
||||
@ -197,28 +199,28 @@ examples:
|
||||
interrupt-controller@e1101000 {
|
||||
compatible = "arm,gic-400";
|
||||
#interrupt-cells = <3>;
|
||||
#address-cells = <2>;
|
||||
#size-cells = <2>;
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
interrupt-controller;
|
||||
interrupts = <1 8 0xf04>;
|
||||
ranges = <0 0 0 0xe1100000 0 0x100000>;
|
||||
reg = <0x0 0xe1110000 0 0x01000>,
|
||||
<0x0 0xe112f000 0 0x02000>,
|
||||
<0x0 0xe1140000 0 0x10000>,
|
||||
<0x0 0xe1160000 0 0x10000>;
|
||||
ranges = <0 0xe1100000 0x100000>;
|
||||
reg = <0xe1110000 0x01000>,
|
||||
<0xe112f000 0x02000>,
|
||||
<0xe1140000 0x10000>,
|
||||
<0xe1160000 0x10000>;
|
||||
|
||||
v2m0: v2m@8000 {
|
||||
v2m0: v2m@80000 {
|
||||
compatible = "arm,gic-v2m-frame";
|
||||
msi-controller;
|
||||
reg = <0x0 0x80000 0 0x1000>;
|
||||
reg = <0x80000 0x1000>;
|
||||
};
|
||||
|
||||
//...
|
||||
|
||||
v2mN: v2m@9000 {
|
||||
v2mN: v2m@90000 {
|
||||
compatible = "arm,gic-v2m-frame";
|
||||
msi-controller;
|
||||
reg = <0x0 0x90000 0 0x1000>;
|
||||
reg = <0x90000 0x1000>;
|
||||
};
|
||||
};
|
||||
...
|
||||
|
||||
@ -23,7 +23,7 @@ Required properties:
|
||||
- marvell,spi-base : List of GIC base SPI interrupts, one for each
|
||||
ODMI frame. Those SPI interrupts are 0-based,
|
||||
i.e marvell,spi-base = <128> will use SPI #96.
|
||||
See Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt
|
||||
See Documentation/devicetree/bindings/interrupt-controller/arm,gic.yaml
|
||||
for details about the GIC Device Tree binding.
|
||||
|
||||
Example:
|
||||
|
||||
@ -15,7 +15,7 @@ Optional properties:
|
||||
- power-supply: specifies the power source. It can either be a regulator
|
||||
or a gpio which enables a regulator, i.e. a regulator-fixed as
|
||||
described in
|
||||
Documentation/devicetree/bindings/regulator/fixed-regulator.txt
|
||||
Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
|
||||
|
||||
Example:
|
||||
|
||||
|
||||
@ -24,7 +24,7 @@ Optional children nodes:
|
||||
Children nodes represent the available nand chips.
|
||||
|
||||
Other properties:
|
||||
see Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.
|
||||
see Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindings.
|
||||
|
||||
Example demonstrate on AXG SoC:
|
||||
|
||||
|
||||
@ -101,12 +101,12 @@ Required properties:
|
||||
number (e.g., 0, 1, 2, etc.)
|
||||
- #address-cells : see partition.txt
|
||||
- #size-cells : see partition.txt
|
||||
- nand-ecc-strength : see nand.txt
|
||||
- nand-ecc-step-size : must be 512 or 1024. See nand.txt
|
||||
- nand-ecc-strength : see nand-controller.yaml
|
||||
- nand-ecc-step-size : must be 512 or 1024. See nand-controller.yaml
|
||||
|
||||
Optional properties:
|
||||
- nand-on-flash-bbt : boolean, to enable the on-flash BBT for this
|
||||
chip-select. See nand.txt
|
||||
chip-select. See nand-controller.yaml
|
||||
- brcm,nand-oob-sector-size : integer, to denote the spare area sector size
|
||||
expected for the ECC layout in use. This size, in
|
||||
addition to the strength and step-size,
|
||||
|
||||
@ -22,16 +22,16 @@ Sub-nodes:
|
||||
select is connected.
|
||||
|
||||
Optional properties:
|
||||
- nand-ecc-step-size: see nand.txt for details.
|
||||
- nand-ecc-step-size: see nand-controller.yaml for details.
|
||||
If present, the value must be
|
||||
512 for "altr,socfpga-denali-nand"
|
||||
1024 for "socionext,uniphier-denali-nand-v5a"
|
||||
1024 for "socionext,uniphier-denali-nand-v5b"
|
||||
- nand-ecc-strength: see nand.txt for details. Valid values are:
|
||||
- nand-ecc-strength: see nand-controller.yaml for details. Valid values are:
|
||||
8, 15 for "altr,socfpga-denali-nand"
|
||||
8, 16, 24 for "socionext,uniphier-denali-nand-v5a"
|
||||
8, 16 for "socionext,uniphier-denali-nand-v5b"
|
||||
- nand-ecc-maximize: see nand.txt for details
|
||||
- nand-ecc-maximize: see nand-controller.yaml for details
|
||||
|
||||
The chip nodes may optionally contain sub-nodes describing partitions of the
|
||||
address space. See partition.txt for more detail.
|
||||
|
||||
@ -30,9 +30,9 @@ Optional properties:
|
||||
command is asserted. Zero means one cycle, 255 means 256
|
||||
cycles.
|
||||
- bank: default NAND bank to use (0-3 are valid, 0 is the default).
|
||||
- nand-ecc-mode : see nand.txt
|
||||
- nand-ecc-strength : see nand.txt
|
||||
- nand-ecc-step-size : see nand.txt
|
||||
- nand-ecc-mode : see nand-controller.yaml
|
||||
- nand-ecc-strength : see nand-controller.yaml
|
||||
- nand-ecc-step-size : see nand-controller.yaml
|
||||
|
||||
Can support 1-bit HW ECC (default) or if stronger correction is required,
|
||||
software-based BCH.
|
||||
|
||||
@ -8,7 +8,7 @@ explained in a separate documents - please refer to
|
||||
Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
|
||||
|
||||
For NAND specific properties such as ECC modes or bus width, please refer to
|
||||
Documentation/devicetree/bindings/mtd/nand.txt
|
||||
Documentation/devicetree/bindings/mtd/nand-controller.yaml
|
||||
|
||||
|
||||
Required properties:
|
||||
|
||||
@ -7,7 +7,7 @@ Required properties:
|
||||
NAND controller's registers. The second contains base
|
||||
physical address and size of NAND controller's buffer.
|
||||
- interrupts: Interrupt number for nfc.
|
||||
- nand-bus-width: See nand.txt.
|
||||
- nand-bus-width: See nand-controller.yaml.
|
||||
- nand-ecc-mode: Support none and hw ecc mode.
|
||||
- #address-cells: Partition address, should be set 1.
|
||||
- #size-cells: Partition size, should be set 1.
|
||||
|
||||
@ -36,29 +36,29 @@ Children nodes represent the available NAND chips.
|
||||
|
||||
Required properties:
|
||||
- reg: shall contain the native Chip Select ids (0-3).
|
||||
- nand-rb: see nand.txt (0-1).
|
||||
- nand-rb: see nand-controller.yaml (0-1).
|
||||
|
||||
Optional properties:
|
||||
- marvell,nand-keep-config: orders the driver not to take the timings
|
||||
from the core and leaving them completely untouched. Bootloader
|
||||
timings will then be used.
|
||||
- label: MTD name.
|
||||
- nand-on-flash-bbt: see nand.txt.
|
||||
- nand-ecc-mode: see nand.txt. Will use hardware ECC if not specified.
|
||||
- nand-ecc-algo: see nand.txt. This property is essentially useful when
|
||||
- nand-on-flash-bbt: see nand-controller.yaml.
|
||||
- nand-ecc-mode: see nand-controller.yaml. Will use hardware ECC if not specified.
|
||||
- nand-ecc-algo: see nand-controller.yaml. This property is essentially useful when
|
||||
not using hardware ECC. Howerver, it may be added when using hardware
|
||||
ECC for clarification but will be ignored by the driver because ECC
|
||||
mode is chosen depending on the page size and the strength required by
|
||||
the NAND chip. This value may be overwritten with nand-ecc-strength
|
||||
property.
|
||||
- nand-ecc-strength: see nand.txt.
|
||||
- nand-ecc-step-size: see nand.txt. Marvell's NAND flash controller does
|
||||
- nand-ecc-strength: see nand-controller.yaml.
|
||||
- nand-ecc-step-size: see nand-controller.yaml. Marvell's NAND flash controller does
|
||||
use fixed strength (1-bit for Hamming, 16-bit for BCH), so the actual
|
||||
step size will shrink or grow in order to fit the required strength.
|
||||
Step sizes are not completely random for all and follow certain
|
||||
patterns described in AN-379, "Marvell SoC NFC ECC".
|
||||
|
||||
See Documentation/devicetree/bindings/mtd/nand.txt for more details on
|
||||
See Documentation/devicetree/bindings/mtd/nand-controller.yaml for more details on
|
||||
generic bindings.
|
||||
|
||||
|
||||
|
||||
@ -4,9 +4,9 @@ Required properties:
|
||||
- compatible: "fsl,imxXX-nand"
|
||||
- reg: address range of the nfc block
|
||||
- interrupts: irq to be used
|
||||
- nand-bus-width: see nand.txt
|
||||
- nand-ecc-mode: see nand.txt
|
||||
- nand-on-flash-bbt: see nand.txt
|
||||
- nand-bus-width: see nand-controller.yaml
|
||||
- nand-ecc-mode: see nand-controller.yaml
|
||||
- nand-on-flash-bbt: see nand-controller.yaml
|
||||
|
||||
Example:
|
||||
|
||||
|
||||
@ -26,14 +26,14 @@ Optional children node properties:
|
||||
"hw" is supported.
|
||||
- nand-ecc-algo: string, algorithm of NAND ECC.
|
||||
Supported values with "hw" ECC mode are: "rs", "bch".
|
||||
- nand-bus-width : See nand.txt
|
||||
- nand-on-flash-bbt: See nand.txt
|
||||
- nand-bus-width : See nand-controller.yaml
|
||||
- nand-on-flash-bbt: See nand-controller.yaml
|
||||
- nand-ecc-strength: integer representing the number of bits to correct
|
||||
per ECC step (always 512). Supported strength using HW ECC
|
||||
modes are:
|
||||
- RS: 4, 6, 8
|
||||
- BCH: 4, 8, 14, 16
|
||||
- nand-ecc-maximize: See nand.txt
|
||||
- nand-ecc-maximize: See nand-controller.yaml
|
||||
- nand-is-boot-medium: Makes sure only ECC strengths supported by the boot ROM
|
||||
are chosen.
|
||||
- wp-gpios: GPIO specifier for the write protect pin.
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
* Oxford Semiconductor OXNAS NAND Controller
|
||||
|
||||
Please refer to nand.txt for generic information regarding MTD NAND bindings.
|
||||
Please refer to nand-controller.yaml for generic information regarding MTD NAND bindings.
|
||||
|
||||
Required properties:
|
||||
- compatible: "oxsemi,ox820-nand"
|
||||
|
||||
@ -47,8 +47,8 @@ Required properties:
|
||||
- #size-cells: see partition.txt
|
||||
|
||||
Optional properties:
|
||||
- nand-bus-width: see nand.txt
|
||||
- nand-ecc-strength: see nand.txt. If not specified, then ECC strength will
|
||||
- nand-bus-width: see nand-controller.yaml
|
||||
- nand-ecc-strength: see nand-controller.yaml. If not specified, then ECC strength will
|
||||
be used according to chip requirement and available
|
||||
OOB size.
|
||||
|
||||
|
||||
@ -6,7 +6,7 @@ Required properties:
|
||||
"samsung,s3c2412-nand"
|
||||
"samsung,s3c2440-nand"
|
||||
- reg : register's location and length.
|
||||
- #address-cells, #size-cells : see nand.txt
|
||||
- #address-cells, #size-cells : see nand-controller.yaml
|
||||
- clocks : phandle to the nand controller clock
|
||||
- clock-names : must contain "nand"
|
||||
|
||||
@ -14,8 +14,8 @@ Optional child nodes:
|
||||
Child nodes representing the available nand chips.
|
||||
|
||||
Optional child properties:
|
||||
- nand-ecc-mode : see nand.txt
|
||||
- nand-on-flash-bbt : see nand.txt
|
||||
- nand-ecc-mode : see nand-controller.yaml
|
||||
- nand-on-flash-bbt : see nand-controller.yaml
|
||||
|
||||
Each child device node may optionally contain a 'partitions' sub-node,
|
||||
which further contains sub-nodes describing the flash partition mapping.
|
||||
|
||||
@ -24,9 +24,9 @@ Required properties:
|
||||
- reg: describes the CS lines assigned to the NAND device.
|
||||
|
||||
Optional properties:
|
||||
- nand-on-flash-bbt: see nand.txt
|
||||
- nand-ecc-strength: see nand.txt
|
||||
- nand-ecc-step-size: see nand.txt
|
||||
- nand-on-flash-bbt: see nand-controller.yaml
|
||||
- nand-ecc-strength: see nand-controller.yaml
|
||||
- nand-ecc-step-size: see nand-controller.yaml
|
||||
|
||||
The following ECC strength and step size are currently supported:
|
||||
- nand-ecc-strength = <1>, nand-ecc-step-size = <512> (Hamming)
|
||||
|
||||
@ -11,7 +11,7 @@ Required properties:
|
||||
- #size-cells: <0>
|
||||
|
||||
Children nodes represent the available NAND chips.
|
||||
See Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.
|
||||
See Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindings.
|
||||
|
||||
Example:
|
||||
|
||||
|
||||
@ -25,14 +25,14 @@ only handle one NAND chip.
|
||||
|
||||
Required properties:
|
||||
- compatible: Should be set to "fsl,vf610-nfc-cs".
|
||||
- nand-bus-width: see nand.txt
|
||||
- nand-ecc-mode: see nand.txt
|
||||
- nand-bus-width: see nand-controller.yaml
|
||||
- nand-ecc-mode: see nand-controller.yaml
|
||||
|
||||
Required properties for hardware ECC:
|
||||
- nand-ecc-strength: supported strengths are 24 and 32 bit (see nand.txt)
|
||||
- nand-ecc-strength: supported strengths are 24 and 32 bit (see nand-controller.yaml)
|
||||
- nand-ecc-step-size: step size equals page size, currently only 2k pages are
|
||||
supported
|
||||
- nand-on-flash-bbt: see nand.txt
|
||||
- nand-on-flash-bbt: see nand-controller.yaml
|
||||
|
||||
Example:
|
||||
|
||||
|
||||
@ -0,0 +1,38 @@
|
||||
DT compatible string versioning for SiFive open-source IP blocks
|
||||
|
||||
This document describes the version specification for DT "compatible"
|
||||
strings for open-source SiFive IP blocks. HDL for these IP blocks
|
||||
can be found in this public repository:
|
||||
|
||||
https://github.com/sifive/sifive-blocks
|
||||
|
||||
IP block-specific DT compatible strings are contained within the HDL,
|
||||
in the form "sifive,<ip-block-name><integer version number>".
|
||||
|
||||
An example is "sifive,uart0" from:
|
||||
|
||||
https://github.com/sifive/sifive-blocks/blob/v1.0/src/main/scala/devices/uart/UART.scala#L43
|
||||
|
||||
Until these IP blocks (or IP integration) support version
|
||||
auto-discovery, the maintainers of these IP blocks intend to increment
|
||||
the suffixed number in the compatible string whenever the software
|
||||
interface to these IP blocks changes, or when the functionality of the
|
||||
underlying IP blocks changes in a way that software should be aware of.
|
||||
|
||||
Driver developers can use compatible string "match" values such as
|
||||
"sifive,uart0" to indicate that their driver is compatible with the
|
||||
register interface and functionality associated with the relevant
|
||||
upstream sifive-blocks commits. It is expected that most drivers will
|
||||
match on these IP block-specific compatible strings.
|
||||
|
||||
DT data authors, when writing data for a particular SoC, should
|
||||
continue to specify an SoC-specific compatible string value, such as
|
||||
"sifive,fu540-c000-uart". This way, if SoC-specific
|
||||
integration-specific bug fixes or workarounds are needed, the kernel
|
||||
or other system software can match on this string to apply them. The
|
||||
IP block-specific compatible string (such as "sifive,uart0") should
|
||||
then be specified as a subsequent value.
|
||||
|
||||
An example of this style:
|
||||
|
||||
compatible = "sifive,fu540-c000-uart", "sifive,uart0";
|
||||
@ -251,7 +251,7 @@ for defining a counter device.
|
||||
.. kernel-doc:: include/linux/counter.h
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: drivers/counter/generic-counter.c
|
||||
.. kernel-doc:: drivers/counter/counter.c
|
||||
:export:
|
||||
|
||||
Implementation
|
||||
|
||||
@ -423,7 +423,7 @@ will be enumerated to depends on the device ID returned by _HID.
|
||||
|
||||
For example, the following ACPI sample might be used to enumerate an lm75-type
|
||||
I2C temperature sensor and match it to the driver using the Device Tree
|
||||
namespace link:
|
||||
namespace link::
|
||||
|
||||
Device (TMP0)
|
||||
{
|
||||
|
||||
@ -410,7 +410,7 @@ Notes on loading the dump-capture kernel:
|
||||
* Boot parameter "1" boots the dump-capture kernel into single-user
|
||||
mode without networking. If you want networking, use "3".
|
||||
|
||||
* We generally don' have to bring up a SMP kernel just to capture the
|
||||
* We generally don't have to bring up a SMP kernel just to capture the
|
||||
dump. Hence generally it is useful either to build a UP dump-capture
|
||||
kernel or specify maxcpus=1 option while loading dump-capture kernel.
|
||||
Note, though maxcpus always works, you had better replace it with
|
||||
|
||||
30
Documentation/networking/device_drivers/index.rst
Normal file
30
Documentation/networking/device_drivers/index.rst
Normal file
@ -0,0 +1,30 @@
|
||||
.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
|
||||
Vendor Device Drivers
|
||||
=====================
|
||||
|
||||
Contents:
|
||||
|
||||
.. toctree::
|
||||
:maxdepth: 2
|
||||
|
||||
freescale/dpaa2/index
|
||||
intel/e100
|
||||
intel/e1000
|
||||
intel/e1000e
|
||||
intel/fm10k
|
||||
intel/igb
|
||||
intel/igbvf
|
||||
intel/ixgb
|
||||
intel/ixgbe
|
||||
intel/ixgbevf
|
||||
intel/i40e
|
||||
intel/iavf
|
||||
intel/ice
|
||||
|
||||
.. only:: subproject
|
||||
|
||||
Indices
|
||||
=======
|
||||
|
||||
* :ref:`genindex`
|
||||
@ -11,19 +11,7 @@ Contents:
|
||||
batman-adv
|
||||
can
|
||||
can_ucan_protocol
|
||||
device_drivers/freescale/dpaa2/index
|
||||
device_drivers/intel/e100
|
||||
device_drivers/intel/e1000
|
||||
device_drivers/intel/e1000e
|
||||
device_drivers/intel/fm10k
|
||||
device_drivers/intel/igb
|
||||
device_drivers/intel/igbvf
|
||||
device_drivers/intel/ixgb
|
||||
device_drivers/intel/ixgbe
|
||||
device_drivers/intel/ixgbevf
|
||||
device_drivers/intel/i40e
|
||||
device_drivers/intel/iavf
|
||||
device_drivers/intel/ice
|
||||
device_drivers/index
|
||||
dsa/index
|
||||
devlink-info-versions
|
||||
ieee802154
|
||||
@ -40,6 +28,8 @@ Contents:
|
||||
checksum-offloads
|
||||
segmentation-offloads
|
||||
scaling
|
||||
tls
|
||||
tls-offload
|
||||
|
||||
.. only:: subproject
|
||||
|
||||
|
||||
1
Documentation/networking/tls-offload-layers.svg
Normal file
1
Documentation/networking/tls-offload-layers.svg
Normal file
File diff suppressed because one or more lines are too long
|
After Width: | Height: | Size: 49 KiB |
1
Documentation/networking/tls-offload-reorder-bad.svg
Normal file
1
Documentation/networking/tls-offload-reorder-bad.svg
Normal file
File diff suppressed because one or more lines are too long
|
After Width: | Height: | Size: 6.4 KiB |
1
Documentation/networking/tls-offload-reorder-good.svg
Normal file
1
Documentation/networking/tls-offload-reorder-good.svg
Normal file
File diff suppressed because one or more lines are too long
|
After Width: | Height: | Size: 6.4 KiB |
482
Documentation/networking/tls-offload.rst
Normal file
482
Documentation/networking/tls-offload.rst
Normal file
@ -0,0 +1,482 @@
|
||||
.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
|
||||
==================
|
||||
Kernel TLS offload
|
||||
==================
|
||||
|
||||
Kernel TLS operation
|
||||
====================
|
||||
|
||||
Linux kernel provides TLS connection offload infrastructure. Once a TCP
|
||||
connection is in ``ESTABLISHED`` state user space can enable the TLS Upper
|
||||
Layer Protocol (ULP) and install the cryptographic connection state.
|
||||
For details regarding the user-facing interface refer to the TLS
|
||||
documentation in :ref:`Documentation/networking/tls.rst <kernel_tls>`.
|
||||
|
||||
``ktls`` can operate in three modes:
|
||||
|
||||
* Software crypto mode (``TLS_SW``) - CPU handles the cryptography.
|
||||
In most basic cases only crypto operations synchronous with the CPU
|
||||
can be used, but depending on calling context CPU may utilize
|
||||
asynchronous crypto accelerators. The use of accelerators introduces extra
|
||||
latency on socket reads (decryption only starts when a read syscall
|
||||
is made) and additional I/O load on the system.
|
||||
* Packet-based NIC offload mode (``TLS_HW``) - the NIC handles crypto
|
||||
on a packet by packet basis, provided the packets arrive in order.
|
||||
This mode integrates best with the kernel stack and is described in detail
|
||||
in the remaining part of this document
|
||||
(``ethtool`` flags ``tls-hw-tx-offload`` and ``tls-hw-rx-offload``).
|
||||
* Full TCP NIC offload mode (``TLS_HW_RECORD``) - mode of operation where
|
||||
NIC driver and firmware replace the kernel networking stack
|
||||
with its own TCP handling, it is not usable in production environments
|
||||
making use of the Linux networking stack for example any firewalling
|
||||
abilities or QoS and packet scheduling (``ethtool`` flag ``tls-hw-record``).
|
||||
|
||||
The operation mode is selected automatically based on device configuration,
|
||||
offload opt-in or opt-out on per-connection basis is not currently supported.
|
||||
|
||||
TX
|
||||
--
|
||||
|
||||
At a high level user write requests are turned into a scatter list, the TLS ULP
|
||||
intercepts them, inserts record framing, performs encryption (in ``TLS_SW``
|
||||
mode) and then hands the modified scatter list to the TCP layer. From this
|
||||
point on the TCP stack proceeds as normal.
|
||||
|
||||
In ``TLS_HW`` mode the encryption is not performed in the TLS ULP.
|
||||
Instead packets reach a device driver, the driver will mark the packets
|
||||
for crypto offload based on the socket the packet is attached to,
|
||||
and send them to the device for encryption and transmission.
|
||||
|
||||
RX
|
||||
--
|
||||
|
||||
On the receive side if the device handled decryption and authentication
|
||||
successfully, the driver will set the decrypted bit in the associated
|
||||
:c:type:`struct sk_buff <sk_buff>`. The packets reach the TCP stack and
|
||||
are handled normally. ``ktls`` is informed when data is queued to the socket
|
||||
and the ``strparser`` mechanism is used to delineate the records. Upon read
|
||||
request, records are retrieved from the socket and passed to decryption routine.
|
||||
If device decrypted all the segments of the record the decryption is skipped,
|
||||
otherwise software path handles decryption.
|
||||
|
||||
.. kernel-figure:: tls-offload-layers.svg
|
||||
:alt: TLS offload layers
|
||||
:align: center
|
||||
:figwidth: 28em
|
||||
|
||||
Layers of Kernel TLS stack
|
||||
|
||||
Device configuration
|
||||
====================
|
||||
|
||||
During driver initialization device sets the ``NETIF_F_HW_TLS_RX`` and
|
||||
``NETIF_F_HW_TLS_TX`` features and installs its
|
||||
:c:type:`struct tlsdev_ops <tlsdev_ops>`
|
||||
pointer in the :c:member:`tlsdev_ops` member of the
|
||||
:c:type:`struct net_device <net_device>`.
|
||||
|
||||
When TLS cryptographic connection state is installed on a ``ktls`` socket
|
||||
(note that it is done twice, once for RX and once for TX direction,
|
||||
and the two are completely independent), the kernel checks if the underlying
|
||||
network device is offload-capable and attempts the offload. In case offload
|
||||
fails the connection is handled entirely in software using the same mechanism
|
||||
as if the offload was never tried.
|
||||
|
||||
Offload request is performed via the :c:member:`tls_dev_add` callback of
|
||||
:c:type:`struct tlsdev_ops <tlsdev_ops>`:
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
int (*tls_dev_add)(struct net_device *netdev, struct sock *sk,
|
||||
enum tls_offload_ctx_dir direction,
|
||||
struct tls_crypto_info *crypto_info,
|
||||
u32 start_offload_tcp_sn);
|
||||
|
||||
``direction`` indicates whether the cryptographic information is for
|
||||
the received or transmitted packets. Driver uses the ``sk`` parameter
|
||||
to retrieve the connection 5-tuple and socket family (IPv4 vs IPv6).
|
||||
Cryptographic information in ``crypto_info`` includes the key, iv, salt
|
||||
as well as TLS record sequence number. ``start_offload_tcp_sn`` indicates
|
||||
which TCP sequence number corresponds to the beginning of the record with
|
||||
sequence number from ``crypto_info``. The driver can add its state
|
||||
at the end of kernel structures (see :c:member:`driver_state` members
|
||||
in ``include/net/tls.h``) to avoid additional allocations and pointer
|
||||
dereferences.
|
||||
|
||||
TX
|
||||
--
|
||||
|
||||
After TX state is installed, the stack guarantees that the first segment
|
||||
of the stream will start exactly at the ``start_offload_tcp_sn`` sequence
|
||||
number, simplifying TCP sequence number matching.
|
||||
|
||||
TX offload being fully initialized does not imply that all segments passing
|
||||
through the driver and which belong to the offloaded socket will be after
|
||||
the expected sequence number and will have kernel record information.
|
||||
In particular, already encrypted data may have been queued to the socket
|
||||
before installing the connection state in the kernel.
|
||||
|
||||
RX
|
||||
--
|
||||
|
||||
In RX direction local networking stack has little control over the segmentation,
|
||||
so the initial records' TCP sequence number may be anywhere inside the segment.
|
||||
|
||||
Normal operation
|
||||
================
|
||||
|
||||
At the minimum the device maintains the following state for each connection, in
|
||||
each direction:
|
||||
|
||||
* crypto secrets (key, iv, salt)
|
||||
* crypto processing state (partial blocks, partial authentication tag, etc.)
|
||||
* record metadata (sequence number, processing offset and length)
|
||||
* expected TCP sequence number
|
||||
|
||||
There are no guarantees on record length or record segmentation. In particular
|
||||
segments may start at any point of a record and contain any number of records.
|
||||
Assuming segments are received in order, the device should be able to perform
|
||||
crypto operations and authentication regardless of segmentation. For this
|
||||
to be possible device has to keep small amount of segment-to-segment state.
|
||||
This includes at least:
|
||||
|
||||
* partial headers (if a segment carried only a part of the TLS header)
|
||||
* partial data block
|
||||
* partial authentication tag (all data had been seen but part of the
|
||||
authentication tag has to be written or read from the subsequent segment)
|
||||
|
||||
Record reassembly is not necessary for TLS offload. If the packets arrive
|
||||
in order the device should be able to handle them separately and make
|
||||
forward progress.
|
||||
|
||||
TX
|
||||
--
|
||||
|
||||
The kernel stack performs record framing reserving space for the authentication
|
||||
tag and populating all other TLS header and tailer fields.
|
||||
|
||||
Both the device and the driver maintain expected TCP sequence numbers
|
||||
due to the possibility of retransmissions and the lack of software fallback
|
||||
once the packet reaches the device.
|
||||
For segments passed in order, the driver marks the packets with
|
||||
a connection identifier (note that a 5-tuple lookup is insufficient to identify
|
||||
packets requiring HW offload, see the :ref:`5tuple_problems` section)
|
||||
and hands them to the device. The device identifies the packet as requiring
|
||||
TLS handling and confirms the sequence number matches its expectation.
|
||||
The device performs encryption and authentication of the record data.
|
||||
It replaces the authentication tag and TCP checksum with correct values.
|
||||
|
||||
RX
|
||||
--
|
||||
|
||||
Before a packet is DMAed to the host (but after NIC's embedded switching
|
||||
and packet transformation functions) the device validates the Layer 4
|
||||
checksum and performs a 5-tuple lookup to find any TLS connection the packet
|
||||
may belong to (technically a 4-tuple
|
||||
lookup is sufficient - IP addresses and TCP port numbers, as the protocol
|
||||
is always TCP). If connection is matched device confirms if the TCP sequence
|
||||
number is the expected one and proceeds to TLS handling (record delineation,
|
||||
decryption, authentication for each record in the packet). The device leaves
|
||||
the record framing unmodified, the stack takes care of record decapsulation.
|
||||
Device indicates successful handling of TLS offload in the per-packet context
|
||||
(descriptor) passed to the host.
|
||||
|
||||
Upon reception of a TLS offloaded packet, the driver sets
|
||||
the :c:member:`decrypted` mark in :c:type:`struct sk_buff <sk_buff>`
|
||||
corresponding to the segment. Networking stack makes sure decrypted
|
||||
and non-decrypted segments do not get coalesced (e.g. by GRO or socket layer)
|
||||
and takes care of partial decryption.
|
||||
|
||||
Resync handling
|
||||
===============
|
||||
|
||||
In presence of packet drops or network packet reordering, the device may lose
|
||||
synchronization with the TLS stream, and require a resync with the kernel's
|
||||
TCP stack.
|
||||
|
||||
Note that resync is only attempted for connections which were successfully
|
||||
added to the device table and are in TLS_HW mode. For example,
|
||||
if the table was full when cryptographic state was installed in the kernel,
|
||||
such connection will never get offloaded. Therefore the resync request
|
||||
does not carry any cryptographic connection state.
|
||||
|
||||
TX
|
||||
--
|
||||
|
||||
Segments transmitted from an offloaded socket can get out of sync
|
||||
in similar ways to the receive side-retransmissions - local drops
|
||||
are possible, though network reorders are not.
|
||||
|
||||
Whenever an out of order segment is transmitted the driver provides
|
||||
the device with enough information to perform cryptographic operations.
|
||||
This means most likely that the part of the record preceding the current
|
||||
segment has to be passed to the device as part of the packet context,
|
||||
together with its TCP sequence number and TLS record number. The device
|
||||
can then initialize its crypto state, process and discard the preceding
|
||||
data (to be able to insert the authentication tag) and move onto handling
|
||||
the actual packet.
|
||||
|
||||
In this mode depending on the implementation the driver can either ask
|
||||
for a continuation with the crypto state and the new sequence number
|
||||
(next expected segment is the one after the out of order one), or continue
|
||||
with the previous stream state - assuming that the out of order segment
|
||||
was just a retransmission. The former is simpler, and does not require
|
||||
retransmission detection therefore it is the recommended method until
|
||||
such time it is proven inefficient.
|
||||
|
||||
RX
|
||||
--
|
||||
|
||||
A small amount of RX reorder events may not require a full resynchronization.
|
||||
In particular the device should not lose synchronization
|
||||
when record boundary can be recovered:
|
||||
|
||||
.. kernel-figure:: tls-offload-reorder-good.svg
|
||||
:alt: reorder of non-header segment
|
||||
:align: center
|
||||
|
||||
Reorder of non-header segment
|
||||
|
||||
Green segments are successfully decrypted, blue ones are passed
|
||||
as received on wire, red stripes mark start of new records.
|
||||
|
||||
In above case segment 1 is received and decrypted successfully.
|
||||
Segment 2 was dropped so 3 arrives out of order. The device knows
|
||||
the next record starts inside 3, based on record length in segment 1.
|
||||
Segment 3 is passed untouched, because due to lack of data from segment 2
|
||||
the remainder of the previous record inside segment 3 cannot be handled.
|
||||
The device can, however, collect the authentication algorithm's state
|
||||
and partial block from the new record in segment 3 and when 4 and 5
|
||||
arrive continue decryption. Finally when 2 arrives it's completely outside
|
||||
of expected window of the device so it's passed as is without special
|
||||
handling. ``ktls`` software fallback handles the decryption of record
|
||||
spanning segments 1, 2 and 3. The device did not get out of sync,
|
||||
even though two segments did not get decrypted.
|
||||
|
||||
Kernel synchronization may be necessary if the lost segment contained
|
||||
a record header and arrived after the next record header has already passed:
|
||||
|
||||
.. kernel-figure:: tls-offload-reorder-bad.svg
|
||||
:alt: reorder of header segment
|
||||
:align: center
|
||||
|
||||
Reorder of segment with a TLS header
|
||||
|
||||
In this example segment 2 gets dropped, and it contains a record header.
|
||||
Device can only detect that segment 4 also contains a TLS header
|
||||
if it knows the length of the previous record from segment 2. In this case
|
||||
the device will lose synchronization with the stream.
|
||||
|
||||
When the device gets out of sync and the stream reaches TCP sequence
|
||||
numbers more than a max size record past the expected TCP sequence number,
|
||||
the device starts scanning for a known header pattern. For example
|
||||
for TLS 1.2 and TLS 1.3 subsequent bytes of value ``0x03 0x03`` occur
|
||||
in the SSL/TLS version field of the header. Once pattern is matched
|
||||
the device continues attempting parsing headers at expected locations
|
||||
(based on the length fields at guessed locations).
|
||||
Whenever the expected location does not contain a valid header the scan
|
||||
is restarted.
|
||||
|
||||
When the header is matched the device sends a confirmation request
|
||||
to the kernel, asking if the guessed location is correct (if a TLS record
|
||||
really starts there), and which record sequence number the given header had.
|
||||
The kernel confirms the guessed location was correct and tells the device
|
||||
the record sequence number. Meanwhile, the device had been parsing
|
||||
and counting all records since the just-confirmed one, it adds the number
|
||||
of records it had seen to the record number provided by the kernel.
|
||||
At this point the device is in sync and can resume decryption at next
|
||||
segment boundary.
|
||||
|
||||
In a pathological case the device may latch onto a sequence of matching
|
||||
headers and never hear back from the kernel (there is no negative
|
||||
confirmation from the kernel). The implementation may choose to periodically
|
||||
restart scan. Given how unlikely falsely-matching stream is, however,
|
||||
periodic restart is not deemed necessary.
|
||||
|
||||
Special care has to be taken if the confirmation request is passed
|
||||
asynchronously to the packet stream and record may get processed
|
||||
by the kernel before the confirmation request.
|
||||
|
||||
Error handling
|
||||
==============
|
||||
|
||||
TX
|
||||
--
|
||||
|
||||
Packets may be redirected or rerouted by the stack to a different
|
||||
device than the selected TLS offload device. The stack will handle
|
||||
such condition using the :c:func:`sk_validate_xmit_skb` helper
|
||||
(TLS offload code installs :c:func:`tls_validate_xmit_skb` at this hook).
|
||||
Offload maintains information about all records until the data is
|
||||
fully acknowledged, so if skbs reach the wrong device they can be handled
|
||||
by software fallback.
|
||||
|
||||
Any device TLS offload handling error on the transmission side must result
|
||||
in the packet being dropped. For example if a packet got out of order
|
||||
due to a bug in the stack or the device, reached the device and can't
|
||||
be encrypted such packet must be dropped.
|
||||
|
||||
RX
|
||||
--
|
||||
|
||||
If the device encounters any problems with TLS offload on the receive
|
||||
side it should pass the packet to the host's networking stack as it was
|
||||
received on the wire.
|
||||
|
||||
For example authentication failure for any record in the segment should
|
||||
result in passing the unmodified packet to the software fallback. This means
|
||||
packets should not be modified "in place". Splitting segments to handle partial
|
||||
decryption is not advised. In other words either all records in the packet
|
||||
had been handled successfully and authenticated or the packet has to be passed
|
||||
to the host's stack as it was on the wire (recovering original packet in the
|
||||
driver if device provides precise error is sufficient).
|
||||
|
||||
The Linux networking stack does not provide a way of reporting per-packet
|
||||
decryption and authentication errors, packets with errors must simply not
|
||||
have the :c:member:`decrypted` mark set.
|
||||
|
||||
A packet should also not be handled by the TLS offload if it contains
|
||||
incorrect checksums.
|
||||
|
||||
Performance metrics
|
||||
===================
|
||||
|
||||
TLS offload can be characterized by the following basic metrics:
|
||||
|
||||
* max connection count
|
||||
* connection installation rate
|
||||
* connection installation latency
|
||||
* total cryptographic performance
|
||||
|
||||
Note that each TCP connection requires a TLS session in both directions,
|
||||
the performance may be reported treating each direction separately.
|
||||
|
||||
Max connection count
|
||||
--------------------
|
||||
|
||||
The number of connections device can support can be exposed via
|
||||
``devlink resource`` API.
|
||||
|
||||
Total cryptographic performance
|
||||
-------------------------------
|
||||
|
||||
Offload performance may depend on segment and record size.
|
||||
|
||||
Overload of the cryptographic subsystem of the device should not have
|
||||
significant performance impact on non-offloaded streams.
|
||||
|
||||
Statistics
|
||||
==========
|
||||
|
||||
Following minimum set of TLS-related statistics should be reported
|
||||
by the driver:
|
||||
|
||||
* ``rx_tls_decrypted`` - number of successfully decrypted TLS segments
|
||||
* ``tx_tls_encrypted`` - number of in-order TLS segments passed to device
|
||||
for encryption
|
||||
* ``tx_tls_ooo`` - number of TX packets which were part of a TLS stream
|
||||
but did not arrive in the expected order
|
||||
* ``tx_tls_drop_no_sync_data`` - number of TX packets dropped because
|
||||
they arrived out of order and associated record could not be found
|
||||
(see also :ref:`pre_tls_data`)
|
||||
|
||||
Notable corner cases, exceptions and additional requirements
|
||||
============================================================
|
||||
|
||||
.. _5tuple_problems:
|
||||
|
||||
5-tuple matching limitations
|
||||
----------------------------
|
||||
|
||||
The device can only recognize received packets based on the 5-tuple
|
||||
of the socket. Current ``ktls`` implementation will not offload sockets
|
||||
routed through software interfaces such as those used for tunneling
|
||||
or virtual networking. However, many packet transformations performed
|
||||
by the networking stack (most notably any BPF logic) do not require
|
||||
any intermediate software device, therefore a 5-tuple match may
|
||||
consistently miss at the device level. In such cases the device
|
||||
should still be able to perform TX offload (encryption) and should
|
||||
fallback cleanly to software decryption (RX).
|
||||
|
||||
Out of order
|
||||
------------
|
||||
|
||||
Introducing extra processing in NICs should not cause packets to be
|
||||
transmitted or received out of order, for example pure ACK packets
|
||||
should not be reordered with respect to data segments.
|
||||
|
||||
Ingress reorder
|
||||
---------------
|
||||
|
||||
A device is permitted to perform packet reordering for consecutive
|
||||
TCP segments (i.e. placing packets in the correct order) but any form
|
||||
of additional buffering is disallowed.
|
||||
|
||||
Coexistence with standard networking offload features
|
||||
-----------------------------------------------------
|
||||
|
||||
Offloaded ``ktls`` sockets should support standard TCP stack features
|
||||
transparently. Enabling device TLS offload should not cause any difference
|
||||
in packets as seen on the wire.
|
||||
|
||||
Transport layer transparency
|
||||
----------------------------
|
||||
|
||||
The device should not modify any packet headers for the purpose
|
||||
of the simplifying TLS offload.
|
||||
|
||||
The device should not depend on any packet headers beyond what is strictly
|
||||
necessary for TLS offload.
|
||||
|
||||
Segment drops
|
||||
-------------
|
||||
|
||||
Dropping packets is acceptable only in the event of catastrophic
|
||||
system errors and should never be used as an error handling mechanism
|
||||
in cases arising from normal operation. In other words, reliance
|
||||
on TCP retransmissions to handle corner cases is not acceptable.
|
||||
|
||||
TLS device features
|
||||
-------------------
|
||||
|
||||
Drivers should ignore the changes to TLS the device feature flags.
|
||||
These flags will be acted upon accordingly by the core ``ktls`` code.
|
||||
TLS device feature flags only control adding of new TLS connection
|
||||
offloads, old connections will remain active after flags are cleared.
|
||||
|
||||
Known bugs
|
||||
==========
|
||||
|
||||
skb_orphan() leaks clear text
|
||||
-----------------------------
|
||||
|
||||
Currently drivers depend on the :c:member:`sk` member of
|
||||
:c:type:`struct sk_buff <sk_buff>` to identify segments requiring
|
||||
encryption. Any operation which removes or does not preserve the socket
|
||||
association such as :c:func:`skb_orphan` or :c:func:`skb_clone`
|
||||
will cause the driver to miss the packets and lead to clear text leaks.
|
||||
|
||||
Redirects leak clear text
|
||||
-------------------------
|
||||
|
||||
In the RX direction, if segment has already been decrypted by the device
|
||||
and it gets redirected or mirrored - clear text will be transmitted out.
|
||||
|
||||
.. _pre_tls_data:
|
||||
|
||||
Transmission of pre-TLS data
|
||||
----------------------------
|
||||
|
||||
User can enqueue some already encrypted and framed records before enabling
|
||||
``ktls`` on the socket. Those records have to get sent as they are. This is
|
||||
perfectly easy to handle in the software case - such data will be waiting
|
||||
in the TCP layer, TLS ULP won't see it. In the offloaded case when pre-queued
|
||||
segment reaches transmission point it appears to be out of order (before the
|
||||
expected TCP sequence number) and the stack does not have a record information
|
||||
associated.
|
||||
|
||||
All segments without record information cannot, however, be assumed to be
|
||||
pre-queued data, because a race condition exists between TCP stack queuing
|
||||
a retransmission, the driver seeing the retransmission and TCP ACK arriving
|
||||
for the retransmitted data.
|
||||
@ -1,3 +1,9 @@
|
||||
.. _kernel_tls:
|
||||
|
||||
==========
|
||||
Kernel TLS
|
||||
==========
|
||||
|
||||
Overview
|
||||
========
|
||||
|
||||
@ -12,6 +18,8 @@ Creating a TLS connection
|
||||
|
||||
First create a new TCP socket and set the TLS ULP.
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
sock = socket(AF_INET, SOCK_STREAM, 0);
|
||||
setsockopt(sock, SOL_TCP, TCP_ULP, "tls", sizeof("tls"));
|
||||
|
||||
@ -21,6 +29,8 @@ handshake is complete, we have all the parameters required to move the
|
||||
data-path to the kernel. There is a separate socket option for moving
|
||||
the transmit and the receive into the kernel.
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
/* From linux/tls.h */
|
||||
struct tls_crypto_info {
|
||||
unsigned short version;
|
||||
@ -58,6 +68,8 @@ After setting the TLS_TX socket option all application data sent over this
|
||||
socket is encrypted using TLS and the parameters provided in the socket option.
|
||||
For example, we can send an encrypted hello world record as follows:
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
const char *msg = "hello world\n";
|
||||
send(sock, msg, strlen(msg));
|
||||
|
||||
@ -67,6 +79,8 @@ to the encrypted kernel send buffer if possible.
|
||||
The sendfile system call will send the file's data over TLS records of maximum
|
||||
length (2^14).
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
file = open(filename, O_RDONLY);
|
||||
fstat(file, &stat);
|
||||
sendfile(sock, file, &offset, stat.st_size);
|
||||
@ -89,6 +103,8 @@ After setting the TLS_RX socket option, all recv family socket calls
|
||||
are decrypted using TLS parameters provided. A full TLS record must
|
||||
be received before decryption can happen.
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
char buffer[16384];
|
||||
recv(sock, buffer, 16384);
|
||||
|
||||
@ -97,12 +113,12 @@ large enough, and no additional allocations occur. If the userspace
|
||||
buffer is too small, data is decrypted in the kernel and copied to
|
||||
userspace.
|
||||
|
||||
EINVAL is returned if the TLS version in the received message does not
|
||||
``EINVAL`` is returned if the TLS version in the received message does not
|
||||
match the version passed in setsockopt.
|
||||
|
||||
EMSGSIZE is returned if the received message is too big.
|
||||
``EMSGSIZE`` is returned if the received message is too big.
|
||||
|
||||
EBADMSG is returned if decryption failed for any other reason.
|
||||
``EBADMSG`` is returned if decryption failed for any other reason.
|
||||
|
||||
Send TLS control messages
|
||||
-------------------------
|
||||
@ -113,9 +129,11 @@ These messages can be sent over the socket by providing the TLS record type
|
||||
via a CMSG. For example the following function sends @data of @length bytes
|
||||
using a record of type @record_type.
|
||||
|
||||
/* send TLS control message using record_type */
|
||||
.. code-block:: c
|
||||
|
||||
/* send TLS control message using record_type */
|
||||
static int klts_send_ctrl_message(int sock, unsigned char record_type,
|
||||
void *data, size_t length)
|
||||
void *data, size_t length)
|
||||
{
|
||||
struct msghdr msg = {0};
|
||||
int cmsg_len = sizeof(record_type);
|
||||
@ -151,6 +169,8 @@ type passed via cmsg. If no cmsg buffer is provided, an error is
|
||||
returned if a control message is received. Data messages may be
|
||||
received without a cmsg buffer set.
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
char buffer[16384];
|
||||
char cmsg[CMSG_SPACE(sizeof(unsigned char))];
|
||||
struct msghdr msg = {0};
|
||||
@ -186,12 +206,10 @@ Integrating in to userspace TLS library
|
||||
At a high level, the kernel TLS ULP is a replacement for the record
|
||||
layer of a userspace TLS library.
|
||||
|
||||
A patchset to OpenSSL to use ktls as the record layer is here:
|
||||
A patchset to OpenSSL to use ktls as the record layer is
|
||||
`here <https://github.com/Mellanox/openssl/commits/tls_rx2>`_.
|
||||
|
||||
https://github.com/Mellanox/openssl/commits/tls_rx2
|
||||
|
||||
An example of calling send directly after a handshake using
|
||||
gnutls. Since it doesn't implement a full record layer, control
|
||||
messages are not supported:
|
||||
|
||||
https://github.com/ktls/af_ktls-tool/commits/RX
|
||||
`An example <https://github.com/ktls/af_ktls-tool/commits/RX>`_
|
||||
of calling send directly after a handshake using gnutls.
|
||||
Since it doesn't implement a full record layer, control
|
||||
messages are not supported.
|
||||
@ -37,7 +37,19 @@ import glob
|
||||
from docutils import nodes, statemachine
|
||||
from docutils.statemachine import ViewList
|
||||
from docutils.parsers.rst import directives, Directive
|
||||
from sphinx.ext.autodoc import AutodocReporter
|
||||
|
||||
#
|
||||
# AutodocReporter is only good up to Sphinx 1.7
|
||||
#
|
||||
import sphinx
|
||||
|
||||
Use_SSI = sphinx.__version__[:3] >= '1.7'
|
||||
if Use_SSI:
|
||||
from sphinx.util.docutils import switch_source_input
|
||||
else:
|
||||
from sphinx.ext.autodoc import AutodocReporter
|
||||
|
||||
import kernellog
|
||||
|
||||
__version__ = '1.0'
|
||||
|
||||
@ -90,7 +102,8 @@ class KernelDocDirective(Directive):
|
||||
cmd += [filename]
|
||||
|
||||
try:
|
||||
env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
|
||||
kernellog.verbose(env.app,
|
||||
'calling kernel-doc \'%s\'' % (" ".join(cmd)))
|
||||
|
||||
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
||||
out, err = p.communicate()
|
||||
@ -100,7 +113,8 @@ class KernelDocDirective(Directive):
|
||||
if p.returncode != 0:
|
||||
sys.stderr.write(err)
|
||||
|
||||
env.app.warn('kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
|
||||
kernellog.warn(env.app,
|
||||
'kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
|
||||
return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
|
||||
elif env.config.kerneldoc_verbosity > 0:
|
||||
sys.stderr.write(err)
|
||||
@ -121,20 +135,28 @@ class KernelDocDirective(Directive):
|
||||
lineoffset += 1
|
||||
|
||||
node = nodes.section()
|
||||
buf = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
|
||||
self.do_parse(result, node)
|
||||
|
||||
return node.children
|
||||
|
||||
except Exception as e: # pylint: disable=W0703
|
||||
kernellog.warn(env.app, 'kernel-doc \'%s\' processing failed with: %s' %
|
||||
(" ".join(cmd), str(e)))
|
||||
return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
|
||||
|
||||
def do_parse(self, result, node):
|
||||
if Use_SSI:
|
||||
with switch_source_input(self.state, result):
|
||||
self.state.nested_parse(result, 0, node, match_titles=1)
|
||||
else:
|
||||
save = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
|
||||
self.state.memo.reporter = AutodocReporter(result, self.state.memo.reporter)
|
||||
self.state.memo.title_styles, self.state.memo.section_level = [], 0
|
||||
try:
|
||||
self.state.nested_parse(result, 0, node, match_titles=1)
|
||||
finally:
|
||||
self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
|
||||
self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = save
|
||||
|
||||
return node.children
|
||||
|
||||
except Exception as e: # pylint: disable=W0703
|
||||
env.app.warn('kernel-doc \'%s\' processing failed with: %s' %
|
||||
(" ".join(cmd), str(e)))
|
||||
return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
|
||||
|
||||
def setup(app):
|
||||
app.add_config_value('kerneldoc_bin', None, 'env')
|
||||
|
||||
28
Documentation/sphinx/kernellog.py
Normal file
28
Documentation/sphinx/kernellog.py
Normal file
@ -0,0 +1,28 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
#
|
||||
# Sphinx has deprecated its older logging interface, but the replacement
|
||||
# only goes back to 1.6. So here's a wrapper layer to keep around for
|
||||
# as long as we support 1.4.
|
||||
#
|
||||
import sphinx
|
||||
|
||||
if sphinx.__version__[:3] >= '1.6':
|
||||
UseLogging = True
|
||||
from sphinx.util import logging
|
||||
logger = logging.getLogger('kerneldoc')
|
||||
else:
|
||||
UseLogging = False
|
||||
|
||||
def warn(app, message):
|
||||
if UseLogging:
|
||||
logger.warning(message)
|
||||
else:
|
||||
app.warn(message)
|
||||
|
||||
def verbose(app, message):
|
||||
if UseLogging:
|
||||
logger.verbose(message)
|
||||
else:
|
||||
app.verbose(message)
|
||||
|
||||
|
||||
@ -60,6 +60,8 @@ import sphinx
|
||||
from sphinx.util.nodes import clean_astext
|
||||
from six import iteritems
|
||||
|
||||
import kernellog
|
||||
|
||||
PY3 = sys.version_info[0] == 3
|
||||
|
||||
if PY3:
|
||||
@ -171,20 +173,20 @@ def setupTools(app):
|
||||
This function is called once, when the builder is initiated.
|
||||
"""
|
||||
global dot_cmd, convert_cmd # pylint: disable=W0603
|
||||
app.verbose("kfigure: check installed tools ...")
|
||||
kernellog.verbose(app, "kfigure: check installed tools ...")
|
||||
|
||||
dot_cmd = which('dot')
|
||||
convert_cmd = which('convert')
|
||||
|
||||
if dot_cmd:
|
||||
app.verbose("use dot(1) from: " + dot_cmd)
|
||||
kernellog.verbose(app, "use dot(1) from: " + dot_cmd)
|
||||
else:
|
||||
app.warn("dot(1) not found, for better output quality install "
|
||||
"graphviz from http://www.graphviz.org")
|
||||
kernellog.warn(app, "dot(1) not found, for better output quality install "
|
||||
"graphviz from http://www.graphviz.org")
|
||||
if convert_cmd:
|
||||
app.verbose("use convert(1) from: " + convert_cmd)
|
||||
kernellog.verbose(app, "use convert(1) from: " + convert_cmd)
|
||||
else:
|
||||
app.warn(
|
||||
kernellog.warn(app,
|
||||
"convert(1) not found, for SVG to PDF conversion install "
|
||||
"ImageMagick (https://www.imagemagick.org)")
|
||||
|
||||
@ -220,12 +222,13 @@ def convert_image(img_node, translator, src_fname=None):
|
||||
|
||||
# in kernel builds, use 'make SPHINXOPTS=-v' to see verbose messages
|
||||
|
||||
app.verbose('assert best format for: ' + img_node['uri'])
|
||||
kernellog.verbose(app, 'assert best format for: ' + img_node['uri'])
|
||||
|
||||
if in_ext == '.dot':
|
||||
|
||||
if not dot_cmd:
|
||||
app.verbose("dot from graphviz not available / include DOT raw.")
|
||||
kernellog.verbose(app,
|
||||
"dot from graphviz not available / include DOT raw.")
|
||||
img_node.replace_self(file2literal(src_fname))
|
||||
|
||||
elif translator.builder.format == 'latex':
|
||||
@ -252,7 +255,8 @@ def convert_image(img_node, translator, src_fname=None):
|
||||
|
||||
if translator.builder.format == 'latex':
|
||||
if convert_cmd is None:
|
||||
app.verbose("no SVG to PDF conversion available / include SVG raw.")
|
||||
kernellog.verbose(app,
|
||||
"no SVG to PDF conversion available / include SVG raw.")
|
||||
img_node.replace_self(file2literal(src_fname))
|
||||
else:
|
||||
dst_fname = path.join(translator.builder.outdir, fname + '.pdf')
|
||||
@ -265,18 +269,19 @@ def convert_image(img_node, translator, src_fname=None):
|
||||
_name = dst_fname[len(translator.builder.outdir) + 1:]
|
||||
|
||||
if isNewer(dst_fname, src_fname):
|
||||
app.verbose("convert: {out}/%s already exists and is newer" % _name)
|
||||
kernellog.verbose(app,
|
||||
"convert: {out}/%s already exists and is newer" % _name)
|
||||
|
||||
else:
|
||||
ok = False
|
||||
mkdir(path.dirname(dst_fname))
|
||||
|
||||
if in_ext == '.dot':
|
||||
app.verbose('convert DOT to: {out}/' + _name)
|
||||
kernellog.verbose(app, 'convert DOT to: {out}/' + _name)
|
||||
ok = dot2format(app, src_fname, dst_fname)
|
||||
|
||||
elif in_ext == '.svg':
|
||||
app.verbose('convert SVG to: {out}/' + _name)
|
||||
kernellog.verbose(app, 'convert SVG to: {out}/' + _name)
|
||||
ok = svg2pdf(app, src_fname, dst_fname)
|
||||
|
||||
if not ok:
|
||||
@ -305,7 +310,8 @@ def dot2format(app, dot_fname, out_fname):
|
||||
with open(out_fname, "w") as out:
|
||||
exit_code = subprocess.call(cmd, stdout = out)
|
||||
if exit_code != 0:
|
||||
app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
|
||||
kernellog.warn(app,
|
||||
"Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
|
||||
return bool(exit_code == 0)
|
||||
|
||||
def svg2pdf(app, svg_fname, pdf_fname):
|
||||
@ -322,7 +328,7 @@ def svg2pdf(app, svg_fname, pdf_fname):
|
||||
# use stdout and stderr from parent
|
||||
exit_code = subprocess.call(cmd)
|
||||
if exit_code != 0:
|
||||
app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
|
||||
kernellog.warn(app, "Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
|
||||
return bool(exit_code == 0)
|
||||
|
||||
|
||||
@ -415,15 +421,15 @@ def visit_kernel_render(self, node):
|
||||
app = self.builder.app
|
||||
srclang = node.get('srclang')
|
||||
|
||||
app.verbose('visit kernel-render node lang: "%s"' % (srclang))
|
||||
kernellog.verbose(app, 'visit kernel-render node lang: "%s"' % (srclang))
|
||||
|
||||
tmp_ext = RENDER_MARKUP_EXT.get(srclang, None)
|
||||
if tmp_ext is None:
|
||||
app.warn('kernel-render: "%s" unknown / include raw.' % (srclang))
|
||||
kernellog.warn(app, 'kernel-render: "%s" unknown / include raw.' % (srclang))
|
||||
return
|
||||
|
||||
if not dot_cmd and tmp_ext == '.dot':
|
||||
app.verbose("dot from graphviz not available / include raw.")
|
||||
kernellog.verbose(app, "dot from graphviz not available / include raw.")
|
||||
return
|
||||
|
||||
literal_block = node[0]
|
||||
|
||||
10
MAINTAINERS
10
MAINTAINERS
@ -2627,7 +2627,7 @@ F: Documentation/devicetree/bindings/eeprom/at24.txt
|
||||
F: drivers/misc/eeprom/at24.c
|
||||
|
||||
ATA OVER ETHERNET (AOE) DRIVER
|
||||
M: "Ed L. Cashin" <ed.cashin@acm.org>
|
||||
M: "Justin Sanders" <justin@coraid.com>
|
||||
W: http://www.openaoe.org/
|
||||
S: Supported
|
||||
F: Documentation/aoe/
|
||||
@ -2768,7 +2768,7 @@ AVIA HX711 ANALOG DIGITAL CONVERTER IIO DRIVER
|
||||
M: Andreas Klinger <ak@it-klinger.de>
|
||||
L: linux-iio@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
|
||||
F: Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
|
||||
F: drivers/iio/adc/hx711.c
|
||||
|
||||
AX.25 NETWORK LAYER
|
||||
@ -8611,14 +8611,12 @@ F: arch/x86/include/asm/svm.h
|
||||
F: arch/x86/kvm/svm.c
|
||||
|
||||
KERNEL VIRTUAL MACHINE FOR ARM/ARM64 (KVM/arm, KVM/arm64)
|
||||
M: Christoffer Dall <christoffer.dall@arm.com>
|
||||
M: Marc Zyngier <marc.zyngier@arm.com>
|
||||
R: James Morse <james.morse@arm.com>
|
||||
R: Julien Thierry <julien.thierry@arm.com>
|
||||
R: Suzuki K Pouloze <suzuki.poulose@arm.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
L: kvmarm@lists.cs.columbia.edu
|
||||
W: http://systems.cs.columbia.edu/projects/kvm-arm
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git
|
||||
S: Maintained
|
||||
F: arch/arm/include/uapi/asm/kvm*
|
||||
@ -11226,7 +11224,7 @@ F: drivers/video/fbdev/riva/
|
||||
F: drivers/video/fbdev/nvidia/
|
||||
|
||||
NVM EXPRESS DRIVER
|
||||
M: Keith Busch <keith.busch@intel.com>
|
||||
M: Keith Busch <kbusch@kernel.org>
|
||||
M: Jens Axboe <axboe@fb.com>
|
||||
M: Christoph Hellwig <hch@lst.de>
|
||||
M: Sagi Grimberg <sagi@grimberg.me>
|
||||
@ -14351,7 +14349,7 @@ SIMPLEFB FB DRIVER
|
||||
M: Hans de Goede <hdegoede@redhat.com>
|
||||
L: linux-fbdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/display/simple-framebuffer.txt
|
||||
F: Documentation/devicetree/bindings/display/simple-framebuffer.yaml
|
||||
F: drivers/video/fbdev/simplefb.c
|
||||
F: include/linux/platform_data/simplefb.h
|
||||
|
||||
|
||||
4
Makefile
4
Makefile
@ -2,8 +2,8 @@
|
||||
VERSION = 5
|
||||
PATCHLEVEL = 2
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc1
|
||||
NAME = Shy Crocodile
|
||||
EXTRAVERSION = -rc2
|
||||
NAME = Golden Lions
|
||||
|
||||
# *DOCUMENTATION*
|
||||
# To see a list of typical targets execute "make help"
|
||||
|
||||
@ -1,16 +1,8 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
* include/asm-alpha/xor.h
|
||||
*
|
||||
* Optimized RAID-5 checksumming functions for alpha EV5 and EV6
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* (for example /usr/src/linux/COPYING); if not, write to the Free
|
||||
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
extern void xor_alpha_2(unsigned long, unsigned long *, unsigned long *);
|
||||
|
||||
@ -11,6 +11,7 @@ CFLAGS_ARMV7VE :=$(call cc-option, -march=armv7ve)
|
||||
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/aarch32.o
|
||||
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += tlb.o
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += cp15-sr.o
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* Lyrtech SFFSDR board support.
|
||||
*
|
||||
@ -7,20 +8,6 @@
|
||||
* Based on DV-EVM platform, original copyright follows:
|
||||
*
|
||||
* Copyright (C) 2007 MontaVista Software, Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
|
||||
@ -1,22 +1,8 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* TI DaVinci serial driver
|
||||
*
|
||||
* Copyright (C) 2006 Texas Instruments.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* arch/arm/plat-mxc/iomux-v1.c
|
||||
*
|
||||
@ -5,20 +6,6 @@
|
||||
* Copyright (C) 2009 Uwe Kleine-Koenig, Pengutronix
|
||||
*
|
||||
* Common code for i.MX1, i.MX21 and i.MX27
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#include <linux/errno.h>
|
||||
|
||||
@ -1,21 +1,8 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
* PTP 1588 clock using the IXP46X
|
||||
*
|
||||
* Copyright (C) 2010 OMICRON electronics GmbH
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef _IXP46X_TS_H_
|
||||
|
||||
@ -1,24 +1,10 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* This file configures the internal USB PHY in OMAP4430. Used
|
||||
* with TWL6030 transceiver and MUSB on OMAP4430.
|
||||
*
|
||||
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* Author: Hema HK <hemahk@ti.com>
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
*/
|
||||
|
||||
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||||
|
||||
@ -1,22 +1,10 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998
|
||||
@ -5,19 +6,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include <asm/assembler.h>
|
||||
#include <asm/opcodes.h>
|
||||
|
||||
@ -1,22 +1,10 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
@ -5,19 +6,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,22 +1,10 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.com, 1998-1999
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef __FPA11_H__
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
@ -5,19 +6,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.com, 1998-1999
|
||||
@ -5,19 +6,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
@ -5,19 +6,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
@ -6,19 +7,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,22 +1,10 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.com, 1998-1999
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
27/03/03 Ian Molton Clean up CONFIG_CPU
|
||||
*/
|
||||
|
||||
@ -1,22 +1,10 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
@ -5,19 +6,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef __FPOPCODE_H__
|
||||
|
||||
@ -1,22 +1,10 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.com, 1998-1999
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef __FPSR_H__
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
NetWinder Floating Point Emulator
|
||||
(c) Rebel.COM, 1998,1999
|
||||
@ -5,19 +6,6 @@
|
||||
|
||||
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "fpa11.h"
|
||||
|
||||
@ -476,16 +476,15 @@ config ARM64_ERRATUM_1024718
|
||||
|
||||
If unsure, say Y.
|
||||
|
||||
config ARM64_ERRATUM_1188873
|
||||
config ARM64_ERRATUM_1418040
|
||||
bool "Cortex-A76/Neoverse-N1: MRC read following MRRC read of specific Generic Timer in AArch32 might give incorrect result"
|
||||
default y
|
||||
depends on COMPAT
|
||||
select ARM_ARCH_TIMER_OOL_WORKAROUND
|
||||
help
|
||||
This option adds a workaround for ARM Cortex-A76/Neoverse-N1
|
||||
erratum 1188873.
|
||||
errata 1188873 and 1418040.
|
||||
|
||||
Affected Cortex-A76/Neoverse-N1 cores (r0p0, r1p0, r2p0) could
|
||||
Affected Cortex-A76/Neoverse-N1 cores (r0p0 to r3p1) could
|
||||
cause register corruption when accessing the timer registers
|
||||
from AArch32 userspace.
|
||||
|
||||
@ -521,6 +520,24 @@ config ARM64_ERRATUM_1286807
|
||||
|
||||
If unsure, say Y.
|
||||
|
||||
config ARM64_ERRATUM_1463225
|
||||
bool "Cortex-A76: Software Step might prevent interrupt recognition"
|
||||
default y
|
||||
help
|
||||
This option adds a workaround for Arm Cortex-A76 erratum 1463225.
|
||||
|
||||
On the affected Cortex-A76 cores (r0p0 to r3p1), software stepping
|
||||
of a system call instruction (SVC) can prevent recognition of
|
||||
subsequent interrupts when software stepping is disabled in the
|
||||
exception handler of the system call and either kernel debugging
|
||||
is enabled or VHE is in use.
|
||||
|
||||
Work around the erratum by triggering a dummy step exception
|
||||
when handling a system call from a task that is being stepped
|
||||
in a VHE configuration of the kernel.
|
||||
|
||||
If unsure, say Y.
|
||||
|
||||
config CAVIUM_ERRATUM_22375
|
||||
bool "Cavium erratum 22375, 24313"
|
||||
default y
|
||||
@ -1406,6 +1423,7 @@ config ARM64_MODULE_PLTS
|
||||
|
||||
config ARM64_PSEUDO_NMI
|
||||
bool "Support for NMI-like interrupts"
|
||||
depends on BROKEN # 1556553607-46531-1-git-send-email-julien.thierry@arm.com
|
||||
select CONFIG_ARM_GIC_V3
|
||||
help
|
||||
Adds support for mimicking Non-Maskable Interrupts through the use of
|
||||
|
||||
@ -53,7 +53,7 @@
|
||||
#define ARM64_HAS_STAGE2_FWB 32
|
||||
#define ARM64_HAS_CRC32 33
|
||||
#define ARM64_SSBS 34
|
||||
#define ARM64_WORKAROUND_1188873 35
|
||||
#define ARM64_WORKAROUND_1418040 35
|
||||
#define ARM64_HAS_SB 36
|
||||
#define ARM64_WORKAROUND_1165522 37
|
||||
#define ARM64_HAS_ADDRESS_AUTH_ARCH 38
|
||||
@ -62,7 +62,8 @@
|
||||
#define ARM64_HAS_GENERIC_AUTH_IMP_DEF 41
|
||||
#define ARM64_HAS_IRQ_PRIO_MASKING 42
|
||||
#define ARM64_HAS_DCPODP 43
|
||||
#define ARM64_WORKAROUND_1463225 44
|
||||
|
||||
#define ARM64_NCAPS 44
|
||||
#define ARM64_NCAPS 45
|
||||
|
||||
#endif /* __ASM_CPUCAPS_H */
|
||||
|
||||
@ -18,6 +18,7 @@
|
||||
*/
|
||||
#ifndef __ASM_INSN_H
|
||||
#define __ASM_INSN_H
|
||||
#include <linux/build_bug.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
/* A64 instructions are always 32 bits. */
|
||||
@ -266,18 +267,23 @@ enum aarch64_insn_adr_type {
|
||||
AARCH64_INSN_ADR_TYPE_ADR,
|
||||
};
|
||||
|
||||
#define __AARCH64_INSN_FUNCS(abbr, mask, val) \
|
||||
static __always_inline bool aarch64_insn_is_##abbr(u32 code) \
|
||||
{ return (code & (mask)) == (val); } \
|
||||
static __always_inline u32 aarch64_insn_get_##abbr##_value(void) \
|
||||
{ return (val); }
|
||||
#define __AARCH64_INSN_FUNCS(abbr, mask, val) \
|
||||
static __always_inline bool aarch64_insn_is_##abbr(u32 code) \
|
||||
{ \
|
||||
BUILD_BUG_ON(~(mask) & (val)); \
|
||||
return (code & (mask)) == (val); \
|
||||
} \
|
||||
static __always_inline u32 aarch64_insn_get_##abbr##_value(void) \
|
||||
{ \
|
||||
return (val); \
|
||||
}
|
||||
|
||||
__AARCH64_INSN_FUNCS(adr, 0x9F000000, 0x10000000)
|
||||
__AARCH64_INSN_FUNCS(adrp, 0x9F000000, 0x90000000)
|
||||
__AARCH64_INSN_FUNCS(prfm, 0x3FC00000, 0x39800000)
|
||||
__AARCH64_INSN_FUNCS(prfm_lit, 0xFF000000, 0xD8000000)
|
||||
__AARCH64_INSN_FUNCS(str_reg, 0x3FE0EC00, 0x38206800)
|
||||
__AARCH64_INSN_FUNCS(ldadd, 0x3F20FC00, 0xB8200000)
|
||||
__AARCH64_INSN_FUNCS(ldadd, 0x3F20FC00, 0x38200000)
|
||||
__AARCH64_INSN_FUNCS(ldr_reg, 0x3FE0EC00, 0x38606800)
|
||||
__AARCH64_INSN_FUNCS(ldr_lit, 0xBF000000, 0x18000000)
|
||||
__AARCH64_INSN_FUNCS(ldrsw_lit, 0xFF000000, 0x98000000)
|
||||
|
||||
@ -592,9 +592,6 @@ static inline int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
|
||||
void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr);
|
||||
void kvm_clr_pmu_events(u32 clr);
|
||||
|
||||
void __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt);
|
||||
bool __pmu_switch_to_guest(struct kvm_cpu_context *host_ctxt);
|
||||
|
||||
void kvm_vcpu_pmu_restore_guest(struct kvm_vcpu *vcpu);
|
||||
void kvm_vcpu_pmu_restore_host(struct kvm_vcpu *vcpu);
|
||||
#else
|
||||
|
||||
@ -20,7 +20,7 @@
|
||||
#include <linux/compat.h>
|
||||
#include <linux/err.h>
|
||||
|
||||
typedef long (*syscall_fn_t)(struct pt_regs *regs);
|
||||
typedef long (*syscall_fn_t)(const struct pt_regs *regs);
|
||||
|
||||
extern const syscall_fn_t sys_call_table[];
|
||||
|
||||
|
||||
@ -30,10 +30,10 @@
|
||||
} \
|
||||
static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
|
||||
|
||||
#define COMPAT_SYSCALL_DEFINE0(sname) \
|
||||
asmlinkage long __arm64_compat_sys_##sname(void); \
|
||||
ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO); \
|
||||
asmlinkage long __arm64_compat_sys_##sname(void)
|
||||
#define COMPAT_SYSCALL_DEFINE0(sname) \
|
||||
asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused); \
|
||||
ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO); \
|
||||
asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused)
|
||||
|
||||
#define COND_SYSCALL_COMPAT(name) \
|
||||
cond_syscall(__arm64_compat_sys_##name);
|
||||
@ -62,11 +62,11 @@
|
||||
static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
|
||||
|
||||
#ifndef SYSCALL_DEFINE0
|
||||
#define SYSCALL_DEFINE0(sname) \
|
||||
SYSCALL_METADATA(_##sname, 0); \
|
||||
asmlinkage long __arm64_sys_##sname(void); \
|
||||
ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO); \
|
||||
asmlinkage long __arm64_sys_##sname(void)
|
||||
#define SYSCALL_DEFINE0(sname) \
|
||||
SYSCALL_METADATA(_##sname, 0); \
|
||||
asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused); \
|
||||
ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO); \
|
||||
asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused)
|
||||
#endif
|
||||
|
||||
#ifndef COND_SYSCALL
|
||||
|
||||
@ -502,6 +502,22 @@ static const struct midr_range arm64_ssb_cpus[] = {
|
||||
{},
|
||||
};
|
||||
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
DEFINE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
|
||||
|
||||
static bool
|
||||
has_cortex_a76_erratum_1463225(const struct arm64_cpu_capabilities *entry,
|
||||
int scope)
|
||||
{
|
||||
u32 midr = read_cpuid_id();
|
||||
/* Cortex-A76 r0p0 - r3p1 */
|
||||
struct midr_range range = MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1);
|
||||
|
||||
WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
|
||||
return is_midr_in_range(midr, &range) && is_kernel_in_hyp_mode();
|
||||
}
|
||||
#endif
|
||||
|
||||
static void __maybe_unused
|
||||
cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused)
|
||||
{
|
||||
@ -682,12 +698,16 @@ static const struct midr_range workaround_clean_cache[] = {
|
||||
};
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1188873
|
||||
static const struct midr_range erratum_1188873_list[] = {
|
||||
/* Cortex-A76 r0p0 to r2p0 */
|
||||
MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
|
||||
/* Neoverse-N1 r0p0 to r2p0 */
|
||||
MIDR_RANGE(MIDR_NEOVERSE_N1, 0, 0, 2, 0),
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1418040
|
||||
/*
|
||||
* - 1188873 affects r0p0 to r2p0
|
||||
* - 1418040 affects r0p0 to r3p1
|
||||
*/
|
||||
static const struct midr_range erratum_1418040_list[] = {
|
||||
/* Cortex-A76 r0p0 to r3p1 */
|
||||
MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
|
||||
/* Neoverse-N1 r0p0 to r3p1 */
|
||||
MIDR_RANGE(MIDR_NEOVERSE_N1, 0, 0, 3, 1),
|
||||
{},
|
||||
};
|
||||
#endif
|
||||
@ -809,11 +829,11 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
|
||||
.matches = has_ssbd_mitigation,
|
||||
.midr_range_list = arm64_ssb_cpus,
|
||||
},
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1188873
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1418040
|
||||
{
|
||||
.desc = "ARM erratum 1188873",
|
||||
.capability = ARM64_WORKAROUND_1188873,
|
||||
ERRATA_MIDR_RANGE_LIST(erratum_1188873_list),
|
||||
.desc = "ARM erratum 1418040",
|
||||
.capability = ARM64_WORKAROUND_1418040,
|
||||
ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1165522
|
||||
@ -823,6 +843,14 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
|
||||
.capability = ARM64_WORKAROUND_1165522,
|
||||
ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
{
|
||||
.desc = "ARM erratum 1463225",
|
||||
.capability = ARM64_WORKAROUND_1463225,
|
||||
.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
|
||||
.matches = has_cortex_a76_erratum_1463225,
|
||||
},
|
||||
#endif
|
||||
{
|
||||
}
|
||||
|
||||
@ -336,8 +336,8 @@ alternative_if ARM64_WORKAROUND_845719
|
||||
alternative_else_nop_endif
|
||||
#endif
|
||||
3:
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1188873
|
||||
alternative_if_not ARM64_WORKAROUND_1188873
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1418040
|
||||
alternative_if_not ARM64_WORKAROUND_1418040
|
||||
b 4f
|
||||
alternative_else_nop_endif
|
||||
/*
|
||||
|
||||
@ -145,15 +145,15 @@ u64 __init kaslr_early_init(u64 dt_phys)
|
||||
|
||||
if (IS_ENABLED(CONFIG_RANDOMIZE_MODULE_REGION_FULL)) {
|
||||
/*
|
||||
* Randomize the module region over a 4 GB window covering the
|
||||
* Randomize the module region over a 2 GB window covering the
|
||||
* kernel. This reduces the risk of modules leaking information
|
||||
* about the address of the kernel itself, but results in
|
||||
* branches between modules and the core kernel that are
|
||||
* resolved via PLTs. (Branches between modules will be
|
||||
* resolved normally.)
|
||||
*/
|
||||
module_range = SZ_4G - (u64)(_end - _stext);
|
||||
module_alloc_base = max((u64)_end + offset - SZ_4G,
|
||||
module_range = SZ_2G - (u64)(_end - _stext);
|
||||
module_alloc_base = max((u64)_end + offset - SZ_2G,
|
||||
(u64)MODULES_VADDR);
|
||||
} else {
|
||||
/*
|
||||
|
||||
@ -56,7 +56,7 @@ void *module_alloc(unsigned long size)
|
||||
* can simply omit this fallback in that case.
|
||||
*/
|
||||
p = __vmalloc_node_range(size, MODULE_ALIGN, module_alloc_base,
|
||||
module_alloc_base + SZ_4G, GFP_KERNEL,
|
||||
module_alloc_base + SZ_2G, GFP_KERNEL,
|
||||
PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
|
||||
__builtin_return_address(0));
|
||||
|
||||
@ -96,16 +96,50 @@ static int reloc_data(enum aarch64_reloc_op op, void *place, u64 val, int len)
|
||||
{
|
||||
s64 sval = do_reloc(op, place, val);
|
||||
|
||||
/*
|
||||
* The ELF psABI for AArch64 documents the 16-bit and 32-bit place
|
||||
* relative and absolute relocations as having a range of [-2^15, 2^16)
|
||||
* or [-2^31, 2^32), respectively. However, in order to be able to
|
||||
* detect overflows reliably, we have to choose whether we interpret
|
||||
* such quantities as signed or as unsigned, and stick with it.
|
||||
* The way we organize our address space requires a signed
|
||||
* interpretation of 32-bit relative references, so let's use that
|
||||
* for all R_AARCH64_PRELxx relocations. This means our upper
|
||||
* bound for overflow detection should be Sxx_MAX rather than Uxx_MAX.
|
||||
*/
|
||||
|
||||
switch (len) {
|
||||
case 16:
|
||||
*(s16 *)place = sval;
|
||||
if (sval < S16_MIN || sval > U16_MAX)
|
||||
return -ERANGE;
|
||||
switch (op) {
|
||||
case RELOC_OP_ABS:
|
||||
if (sval < 0 || sval > U16_MAX)
|
||||
return -ERANGE;
|
||||
break;
|
||||
case RELOC_OP_PREL:
|
||||
if (sval < S16_MIN || sval > S16_MAX)
|
||||
return -ERANGE;
|
||||
break;
|
||||
default:
|
||||
pr_err("Invalid 16-bit data relocation (%d)\n", op);
|
||||
return 0;
|
||||
}
|
||||
break;
|
||||
case 32:
|
||||
*(s32 *)place = sval;
|
||||
if (sval < S32_MIN || sval > U32_MAX)
|
||||
return -ERANGE;
|
||||
switch (op) {
|
||||
case RELOC_OP_ABS:
|
||||
if (sval < 0 || sval > U32_MAX)
|
||||
return -ERANGE;
|
||||
break;
|
||||
case RELOC_OP_PREL:
|
||||
if (sval < S32_MIN || sval > S32_MAX)
|
||||
return -ERANGE;
|
||||
break;
|
||||
default:
|
||||
pr_err("Invalid 32-bit data relocation (%d)\n", op);
|
||||
return 0;
|
||||
}
|
||||
break;
|
||||
case 64:
|
||||
*(s64 *)place = sval;
|
||||
|
||||
@ -47,22 +47,26 @@ SYSCALL_DEFINE1(arm64_personality, unsigned int, personality)
|
||||
return ksys_personality(personality);
|
||||
}
|
||||
|
||||
asmlinkage long sys_ni_syscall(void);
|
||||
|
||||
asmlinkage long __arm64_sys_ni_syscall(const struct pt_regs *__unused)
|
||||
{
|
||||
return sys_ni_syscall();
|
||||
}
|
||||
|
||||
/*
|
||||
* Wrappers to pass the pt_regs argument.
|
||||
*/
|
||||
#define sys_personality sys_arm64_personality
|
||||
|
||||
asmlinkage long sys_ni_syscall(const struct pt_regs *);
|
||||
#define __arm64_sys_ni_syscall sys_ni_syscall
|
||||
#define __arm64_sys_personality __arm64_sys_arm64_personality
|
||||
|
||||
#undef __SYSCALL
|
||||
#define __SYSCALL(nr, sym) asmlinkage long __arm64_##sym(const struct pt_regs *);
|
||||
#include <asm/unistd.h>
|
||||
|
||||
#undef __SYSCALL
|
||||
#define __SYSCALL(nr, sym) [nr] = (syscall_fn_t)__arm64_##sym,
|
||||
#define __SYSCALL(nr, sym) [nr] = __arm64_##sym,
|
||||
|
||||
const syscall_fn_t sys_call_table[__NR_syscalls] = {
|
||||
[0 ... __NR_syscalls - 1] = (syscall_fn_t)sys_ni_syscall,
|
||||
[0 ... __NR_syscalls - 1] = __arm64_sys_ni_syscall,
|
||||
#include <asm/unistd.h>
|
||||
};
|
||||
|
||||
@ -133,17 +133,14 @@ COMPAT_SYSCALL_DEFINE6(aarch32_fallocate, int, fd, int, mode,
|
||||
return ksys_fallocate(fd, mode, arg_u64(offset), arg_u64(len));
|
||||
}
|
||||
|
||||
asmlinkage long sys_ni_syscall(const struct pt_regs *);
|
||||
#define __arm64_sys_ni_syscall sys_ni_syscall
|
||||
|
||||
#undef __SYSCALL
|
||||
#define __SYSCALL(nr, sym) asmlinkage long __arm64_##sym(const struct pt_regs *);
|
||||
#include <asm/unistd32.h>
|
||||
|
||||
#undef __SYSCALL
|
||||
#define __SYSCALL(nr, sym) [nr] = (syscall_fn_t)__arm64_##sym,
|
||||
#define __SYSCALL(nr, sym) [nr] = __arm64_##sym,
|
||||
|
||||
const syscall_fn_t compat_sys_call_table[__NR_compat_syscalls] = {
|
||||
[0 ... __NR_compat_syscalls - 1] = (syscall_fn_t)sys_ni_syscall,
|
||||
[0 ... __NR_compat_syscalls - 1] = __arm64_sys_ni_syscall,
|
||||
#include <asm/unistd32.h>
|
||||
};
|
||||
|
||||
@ -8,6 +8,7 @@
|
||||
#include <linux/syscalls.h>
|
||||
|
||||
#include <asm/daifflags.h>
|
||||
#include <asm/debug-monitors.h>
|
||||
#include <asm/fpsimd.h>
|
||||
#include <asm/syscall.h>
|
||||
#include <asm/thread_info.h>
|
||||
@ -60,6 +61,35 @@ static inline bool has_syscall_work(unsigned long flags)
|
||||
int syscall_trace_enter(struct pt_regs *regs);
|
||||
void syscall_trace_exit(struct pt_regs *regs);
|
||||
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
DECLARE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
|
||||
|
||||
static void cortex_a76_erratum_1463225_svc_handler(void)
|
||||
{
|
||||
u32 reg, val;
|
||||
|
||||
if (!unlikely(test_thread_flag(TIF_SINGLESTEP)))
|
||||
return;
|
||||
|
||||
if (!unlikely(this_cpu_has_cap(ARM64_WORKAROUND_1463225)))
|
||||
return;
|
||||
|
||||
__this_cpu_write(__in_cortex_a76_erratum_1463225_wa, 1);
|
||||
reg = read_sysreg(mdscr_el1);
|
||||
val = reg | DBG_MDSCR_SS | DBG_MDSCR_KDE;
|
||||
write_sysreg(val, mdscr_el1);
|
||||
asm volatile("msr daifclr, #8");
|
||||
isb();
|
||||
|
||||
/* We will have taken a single-step exception by this point */
|
||||
|
||||
write_sysreg(reg, mdscr_el1);
|
||||
__this_cpu_write(__in_cortex_a76_erratum_1463225_wa, 0);
|
||||
}
|
||||
#else
|
||||
static void cortex_a76_erratum_1463225_svc_handler(void) { }
|
||||
#endif /* CONFIG_ARM64_ERRATUM_1463225 */
|
||||
|
||||
static void el0_svc_common(struct pt_regs *regs, int scno, int sc_nr,
|
||||
const syscall_fn_t syscall_table[])
|
||||
{
|
||||
@ -68,6 +98,7 @@ static void el0_svc_common(struct pt_regs *regs, int scno, int sc_nr,
|
||||
regs->orig_x0 = regs->regs[0];
|
||||
regs->syscallno = scno;
|
||||
|
||||
cortex_a76_erratum_1463225_svc_handler();
|
||||
local_daif_restore(DAIF_PROCCTX);
|
||||
user_exit();
|
||||
|
||||
|
||||
@ -168,7 +168,6 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
|
||||
|
||||
static int __die(const char *str, int err, struct pt_regs *regs)
|
||||
{
|
||||
struct task_struct *tsk = current;
|
||||
static int die_counter;
|
||||
int ret;
|
||||
|
||||
@ -181,9 +180,6 @@ static int __die(const char *str, int err, struct pt_regs *regs)
|
||||
return ret;
|
||||
|
||||
print_modules();
|
||||
pr_emerg("Process %.*s (pid: %d, stack limit = 0x%p)\n",
|
||||
TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk),
|
||||
end_of_stack(tsk));
|
||||
show_regs(regs);
|
||||
|
||||
if (!user_mode(regs))
|
||||
@ -256,7 +252,10 @@ void arm64_force_sig_fault(int signo, int code, void __user *addr,
|
||||
const char *str)
|
||||
{
|
||||
arm64_show_signal(signo, str);
|
||||
force_sig_fault(signo, code, addr, current);
|
||||
if (signo == SIGKILL)
|
||||
force_sig(SIGKILL, current);
|
||||
else
|
||||
force_sig_fault(signo, code, addr, current);
|
||||
}
|
||||
|
||||
void arm64_force_sig_mceerr(int code, void __user *addr, short lsb,
|
||||
|
||||
@ -10,6 +10,7 @@ KVM=../../../../virt/kvm
|
||||
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/aarch32.o
|
||||
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += vgic-v2-cpuif-proxy.o
|
||||
obj-$(CONFIG_KVM_ARM_HOST) += sysreg-sr.o
|
||||
|
||||
@ -16,6 +16,7 @@
|
||||
*/
|
||||
|
||||
#include <linux/arm-smccc.h>
|
||||
#include <linux/kvm_host.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/jump_label.h>
|
||||
#include <uapi/linux/psci.h>
|
||||
@ -505,6 +506,44 @@ static void __hyp_text __set_host_arch_workaround_state(struct kvm_vcpu *vcpu)
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
* Disable host events, enable guest events
|
||||
*/
|
||||
static bool __hyp_text __pmu_switch_to_guest(struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
struct kvm_host_data *host;
|
||||
struct kvm_pmu_events *pmu;
|
||||
|
||||
host = container_of(host_ctxt, struct kvm_host_data, host_ctxt);
|
||||
pmu = &host->pmu_events;
|
||||
|
||||
if (pmu->events_host)
|
||||
write_sysreg(pmu->events_host, pmcntenclr_el0);
|
||||
|
||||
if (pmu->events_guest)
|
||||
write_sysreg(pmu->events_guest, pmcntenset_el0);
|
||||
|
||||
return (pmu->events_host || pmu->events_guest);
|
||||
}
|
||||
|
||||
/**
|
||||
* Disable guest events, enable host events
|
||||
*/
|
||||
static void __hyp_text __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
struct kvm_host_data *host;
|
||||
struct kvm_pmu_events *pmu;
|
||||
|
||||
host = container_of(host_ctxt, struct kvm_host_data, host_ctxt);
|
||||
pmu = &host->pmu_events;
|
||||
|
||||
if (pmu->events_guest)
|
||||
write_sysreg(pmu->events_guest, pmcntenclr_el0);
|
||||
|
||||
if (pmu->events_host)
|
||||
write_sysreg(pmu->events_host, pmcntenset_el0);
|
||||
}
|
||||
|
||||
/* Switch to the guest for VHE systems running in EL2 */
|
||||
int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
|
||||
@ -53,44 +53,6 @@ void kvm_clr_pmu_events(u32 clr)
|
||||
ctx->pmu_events.events_guest &= ~clr;
|
||||
}
|
||||
|
||||
/**
|
||||
* Disable host events, enable guest events
|
||||
*/
|
||||
bool __hyp_text __pmu_switch_to_guest(struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
struct kvm_host_data *host;
|
||||
struct kvm_pmu_events *pmu;
|
||||
|
||||
host = container_of(host_ctxt, struct kvm_host_data, host_ctxt);
|
||||
pmu = &host->pmu_events;
|
||||
|
||||
if (pmu->events_host)
|
||||
write_sysreg(pmu->events_host, pmcntenclr_el0);
|
||||
|
||||
if (pmu->events_guest)
|
||||
write_sysreg(pmu->events_guest, pmcntenset_el0);
|
||||
|
||||
return (pmu->events_host || pmu->events_guest);
|
||||
}
|
||||
|
||||
/**
|
||||
* Disable guest events, enable host events
|
||||
*/
|
||||
void __hyp_text __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt)
|
||||
{
|
||||
struct kvm_host_data *host;
|
||||
struct kvm_pmu_events *pmu;
|
||||
|
||||
host = container_of(host_ctxt, struct kvm_host_data, host_ctxt);
|
||||
pmu = &host->pmu_events;
|
||||
|
||||
if (pmu->events_guest)
|
||||
write_sysreg(pmu->events_guest, pmcntenclr_el0);
|
||||
|
||||
if (pmu->events_host)
|
||||
write_sysreg(pmu->events_host, pmcntenset_el0);
|
||||
}
|
||||
|
||||
#define PMEVTYPER_READ_CASE(idx) \
|
||||
case idx: \
|
||||
return read_sysreg(pmevtyper##idx##_el0)
|
||||
|
||||
@ -811,6 +811,36 @@ void __init hook_debug_fault_code(int nr,
|
||||
debug_fault_info[nr].name = name;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
DECLARE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
|
||||
|
||||
static int __exception
|
||||
cortex_a76_erratum_1463225_debug_handler(struct pt_regs *regs)
|
||||
{
|
||||
if (user_mode(regs))
|
||||
return 0;
|
||||
|
||||
if (!__this_cpu_read(__in_cortex_a76_erratum_1463225_wa))
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* We've taken a dummy step exception from the kernel to ensure
|
||||
* that interrupts are re-enabled on the syscall path. Return back
|
||||
* to cortex_a76_erratum_1463225_svc_handler() with debug exceptions
|
||||
* masked so that we can safely restore the mdscr and get on with
|
||||
* handling the syscall.
|
||||
*/
|
||||
regs->pstate |= PSR_D_BIT;
|
||||
return 1;
|
||||
}
|
||||
#else
|
||||
static int __exception
|
||||
cortex_a76_erratum_1463225_debug_handler(struct pt_regs *regs)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif /* CONFIG_ARM64_ERRATUM_1463225 */
|
||||
|
||||
asmlinkage void __exception do_debug_exception(unsigned long addr_if_watchpoint,
|
||||
unsigned int esr,
|
||||
struct pt_regs *regs)
|
||||
@ -818,6 +848,9 @@ asmlinkage void __exception do_debug_exception(unsigned long addr_if_watchpoint,
|
||||
const struct fault_info *inf = esr_to_debug_fault_info(esr);
|
||||
unsigned long pc = instruction_pointer(regs);
|
||||
|
||||
if (cortex_a76_erratum_1463225_debug_handler(regs))
|
||||
return;
|
||||
|
||||
/*
|
||||
* Tell lockdep we disabled irqs in entry.S. Do nothing if they were
|
||||
* already disabled to preserve the last enabled/disabled addresses.
|
||||
|
||||
@ -1,13 +1,9 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
* C6X IRQ flag handling
|
||||
*
|
||||
* Copyright (C) 2010 Texas Instruments Incorporated
|
||||
* Written by Mark Salter (msalter@redhat.com)
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public Licence
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the Licence, or (at your option) any later version.
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IRQFLAGS_H
|
||||
|
||||
@ -1,14 +1,6 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
* Optimized RAID-5 checksumming functions for IA-64.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* (for example /usr/src/linux/COPYING); if not, write to the Free
|
||||
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
|
||||
|
||||
@ -1,16 +1,8 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
* arch/ia64/lib/xor.S
|
||||
*
|
||||
* Optimized RAID-5 checksumming functions for IA-64.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* (for example /usr/src/linux/COPYING); if not, write to the Free
|
||||
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include <asm/asmmacro.h>
|
||||
|
||||
@ -55,6 +55,7 @@ paddr_to_nid(unsigned long paddr)
|
||||
|
||||
return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0);
|
||||
}
|
||||
EXPORT_SYMBOL(paddr_to_nid);
|
||||
|
||||
#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA)
|
||||
/*
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
|
||||
fp_arith.c: floating-point math routines for the Linux-m68k
|
||||
@ -8,9 +9,6 @@
|
||||
Somewhat based on the AlphaLinux floating point emulator, by David
|
||||
Mosberger-Tang.
|
||||
|
||||
You may copy, modify, and redistribute this file under the terms of
|
||||
the GNU General Public License, version 2, or any later version, at
|
||||
your convenience.
|
||||
*/
|
||||
|
||||
#include "fp_emu.h"
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/*
|
||||
|
||||
fp_arith.h: floating-point math routines for the Linux-m68k
|
||||
@ -8,9 +9,6 @@
|
||||
Somewhat based on the AlphaLinux floating point emulator, by David
|
||||
Mosberger-Tang.
|
||||
|
||||
You may copy, modify, and redistribute this file under the terms of
|
||||
the GNU General Public License, version 2, or any later version, at
|
||||
your convenience.
|
||||
|
||||
*/
|
||||
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||||
/* multi_arith.h: multi-precision integer arithmetic functions, needed
|
||||
to do extended-precision floating point.
|
||||
|
||||
@ -6,9 +7,7 @@
|
||||
Somewhat based on arch/alpha/math-emu/ieee-math.c, which is (c)
|
||||
David Mosberger-Tang.
|
||||
|
||||
You may copy, modify, and redistribute this file under the terms of
|
||||
the GNU General Public License, version 2, or any later version, at
|
||||
your convenience. */
|
||||
*/
|
||||
|
||||
/* Note:
|
||||
|
||||
|
||||
@ -1,21 +1,8 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* GPR board platform device registration (Au1550)
|
||||
*
|
||||
* Copyright (C) 2010 Wolfgang Grandegger <wg@denx.de>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/delay.h>
|
||||
|
||||
@ -1,21 +1,8 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* MTX-1 platform devices registration (Au1500)
|
||||
*
|
||||
* Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
|
||||
@ -1,23 +1,10 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* BRIEF MODULE DESCRIPTION
|
||||
* MyCable XXS1500 board support
|
||||
*
|
||||
* Copyright 2003, 2008 MontaVista Software Inc.
|
||||
* Author: MontaVista Software, Inc. <source@mvista.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
|
||||
@ -1,22 +1,9 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* DBAu1000/1500/1100 PBAu1100/1500 board support
|
||||
*
|
||||
* Copyright 2000, 2008 MontaVista Software Inc.
|
||||
* Author: MontaVista Software, Inc. <source@mvista.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/clk.h>
|
||||
|
||||
@ -1,21 +1,8 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* DBAu1200/PBAu1200 board platform device registration
|
||||
*
|
||||
* Copyright (C) 2008-2011 Manuel Lauss
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/clk.h>
|
||||
|
||||
@ -1,21 +1,8 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
|
||||
* Copyright (C) 2007 Eugene Konev <ejka@openwrt.org>
|
||||
* Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
|
||||
@ -1,21 +1,8 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
|
||||
* Copyright (C) 2007 Eugene Konev <ejka@openwrt.org>
|
||||
* Copyright (C) 2009-2010 Florian Fainelli <florian@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
|
||||
@ -1,20 +1,7 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
|
||||
* Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/interrupt.h>
|
||||
|
||||
@ -1,20 +1,7 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
|
||||
* Copyright (C) 2007 Eugene Konev <ejka@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
#include <linux/memblock.h>
|
||||
#include <linux/init.h>
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user