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ASoC: Updates for v5.2

Browse Source 
This is a pretty huge set of changes, it's been a pretty active release
 all round but the big thing with this release is the Sound Open Firmware
 changes from Intel, providing another DSP framework for use with the
 DSPs in their SoCs.  This one works with the firmware of the same name
 which is free software (unlike the previous DSP firmwares and framework)
 and there has been some interest in adoption by other systems already so
 hopefully we will see adoption by other vendors in the future.
 
 Other highlights incldue:
 
  - Support for MCLK/sample rate ratio setting in the generic cards.
  - Support for pin switches in the generic cards.
  - A big set of improvements to the TLV320AIC32x4 drivers from Annaliese
    McDermond.
  - New drivers for Freescale audio mixers, several Intel machines,
    several Mediatek machines, Meson G12A, Sound Open Firmware and
    Spreadtrum compressed audio and DMA devices.
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 a2VybmVsLm9yZwAKCRAk1otyXVSH0JFuB/42ATnNmtOXxOlI+F4Cbv8JpTcxFZBA
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Merge tag 'asoc-v5.2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v5.2

This is a pretty huge set of changes, it's been a pretty active release
all round but the big thing with this release is the Sound Open Firmware
changes from Intel, providing another DSP framework for use with the
DSPs in their SoCs.  This one works with the firmware of the same name
which is free software (unlike the previous DSP firmwares and framework)
and there has been some interest in adoption by other systems already so
hopefully we will see adoption by other vendors in the future.

Other highlights include:

 - Support for MCLK/sample rate ratio setting in the generic cards.
 - Support for pin switches in the generic cards.
 - A big set of improvements to the TLV320AIC32x4 drivers from Annaliese
   McDermond.
 - New drivers for Freescale audio mixers, several Intel machines,
   several Mediatek machines, Meson G12A, Sound Open Firmware and
   Spreadtrum compressed audio and DMA devices.
This commit is contained in:
Takashi Iwai 2019-05-06 16:14:09 +02:00
commit d81645510c
1973 changed files with 50897 additions and 17679 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
.clang-format
View File

@ -78,6 +78,8 @@ ForEachMacros:
- 'ata_qc_for_each_with_internal'
- 'ax25_for_each'
- 'ax25_uid_for_each'
- '__bio_for_each_bvec'
- 'bio_for_each_bvec'
- 'bio_for_each_integrity_vec'
- '__bio_for_each_segment'
- 'bio_for_each_segment'
@ -118,10 +120,12 @@ ForEachMacros:
- 'drm_for_each_legacy_plane'
- 'drm_for_each_plane'
- 'drm_for_each_plane_mask'
- 'drm_for_each_privobj'
- 'drm_mm_for_each_hole'
- 'drm_mm_for_each_node'
- 'drm_mm_for_each_node_in_range'
- 'drm_mm_for_each_node_safe'
- 'flow_action_for_each'
- 'for_each_active_drhd_unit'
- 'for_each_active_iommu'
- 'for_each_available_child_of_node'
@ -158,6 +162,9 @@ ForEachMacros:
- 'for_each_dss_dev'
- 'for_each_efi_memory_desc'
- 'for_each_efi_memory_desc_in_map'
- 'for_each_element'
- 'for_each_element_extid'
- 'for_each_element_id'
- 'for_each_endpoint_of_node'
- 'for_each_evictable_lru'
- 'for_each_fib6_node_rt_rcu'
@ -195,6 +202,7 @@ ForEachMacros:
- 'for_each_net_rcu'
- 'for_each_new_connector_in_state'
- 'for_each_new_crtc_in_state'
- 'for_each_new_mst_mgr_in_state'
- 'for_each_new_plane_in_state'
- 'for_each_new_private_obj_in_state'
- 'for_each_node'
@ -210,8 +218,10 @@ ForEachMacros:
- 'for_each_of_pci_range'
- 'for_each_old_connector_in_state'
- 'for_each_old_crtc_in_state'
- 'for_each_old_mst_mgr_in_state'
- 'for_each_oldnew_connector_in_state'
- 'for_each_oldnew_crtc_in_state'
- 'for_each_oldnew_mst_mgr_in_state'
- 'for_each_oldnew_plane_in_state'
- 'for_each_oldnew_plane_in_state_reverse'
- 'for_each_oldnew_private_obj_in_state'
@ -243,6 +253,9 @@ ForEachMacros:
- 'for_each_sg_dma_page'
- 'for_each_sg_page'
- 'for_each_sibling_event'
- 'for_each_subelement'
- 'for_each_subelement_extid'
- 'for_each_subelement_id'
- '__for_each_thread'
- 'for_each_thread'
- 'for_each_zone'
@ -252,6 +265,8 @@ ForEachMacros:
- 'fwnode_for_each_child_node'
- 'fwnode_graph_for_each_endpoint'
- 'gadget_for_each_ep'
- 'genradix_for_each'
- 'genradix_for_each_from'
- 'hash_for_each'
- 'hash_for_each_possible'
- 'hash_for_each_possible_rcu'
@ -293,7 +308,11 @@ ForEachMacros:
- 'key_for_each'
- 'key_for_each_safe'
- 'klp_for_each_func'
- 'klp_for_each_func_safe'
- 'klp_for_each_func_static'
- 'klp_for_each_object'
- 'klp_for_each_object_safe'
- 'klp_for_each_object_static'
- 'kvm_for_each_memslot'
- 'kvm_for_each_vcpu'
- 'list_for_each'
@ -324,6 +343,8 @@ ForEachMacros:
- 'media_device_for_each_intf'
- 'media_device_for_each_link'
- 'media_device_for_each_pad'
- 'mp_bvec_for_each_page'
- 'mp_bvec_for_each_segment'
- 'nanddev_io_for_each_page'
- 'netdev_for_each_lower_dev'
- 'netdev_for_each_lower_private'
@ -375,6 +396,7 @@ ForEachMacros:
- 'rht_for_each_rcu'
- 'rht_for_each_rcu_continue'
- '__rq_for_each_bio'
- 'rq_for_each_bvec'
- 'rq_for_each_segment'
- 'scsi_for_each_prot_sg'
- 'scsi_for_each_sg'
@ -410,6 +432,8 @@ ForEachMacros:
- 'v4l2_m2m_for_each_src_buf_safe'
- 'virtio_device_for_each_vq'
- 'xa_for_each'
- 'xa_for_each_marked'
- 'xa_for_each_start'
- 'xas_for_each'
- 'xas_for_each_conflict'
- 'xas_for_each_marked'

4
.mailmap
View File

@ -156,6 +156,8 @@ Morten Welinder <welinder@darter.rentec.com>
Morten Welinder <welinder@troll.com>
Mythri P K <mythripk@ti.com>
Nguyen Anh Quynh <aquynh@gmail.com>
Nicolas Pitre <nico@fluxnic.net> <nicolas.pitre@linaro.org>
Nicolas Pitre <nico@fluxnic.net> <nico@linaro.org>
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Patrick Mochel <mochel@digitalimplant.org>
Paul Burton <paul.burton@mips.com> <paul.burton@imgtec.com>
@ -224,3 +226,5 @@ Yakir Yang <kuankuan.y@gmail.com> <ykk@rock-chips.com>
Yusuke Goda <goda.yusuke@renesas.com>
Gustavo Padovan <gustavo@las.ic.unicamp.br>
Gustavo Padovan <padovan@profusion.mobi>
Changbin Du <changbin.du@intel.com> <changbin.du@intel.com>
Changbin Du <changbin.du@intel.com> <changbin.du@gmail.com>

12
Documentation/accounting/psi.txt
View File

@ -56,12 +56,12 @@ situation from a state where some tasks are stalled but the CPU is
still doing productive work. As such, time spent in this subset of the
stall state is tracked separately and exported in the "full" averages.
The ratios are tracked as recent trends over ten, sixty, and three
hundred second windows, which gives insight into short term events as
well as medium and long term trends. The total absolute stall time is
tracked and exported as well, to allow detection of latency spikes
which wouldn't necessarily make a dent in the time averages, or to
average trends over custom time frames.
The ratios (in %) are tracked as recent trends over ten, sixty, and
three hundred second windows, which gives insight into short term events
as well as medium and long term trends. The total absolute stall time
(in us) is tracked and exported as well, to allow detection of latency
spikes which wouldn't necessarily make a dent in the time averages,
or to average trends over custom time frames.
Cgroup2 interface
=================

8
Documentation/bpf/btf.rst
View File

@ -148,16 +148,16 @@ The ``btf_type.size * 8`` must be equal to or greater than ``BTF_INT_BITS()``
for the type. The maximum value of ``BTF_INT_BITS()`` is 128.
The ``BTF_INT_OFFSET()`` specifies the starting bit offset to calculate values
for this int. For example, a bitfield struct member has: * btf member bit
offset 100 from the start of the structure, * btf member pointing to an int
type, * the int type has ``BTF_INT_OFFSET() = 2`` and ``BTF_INT_BITS() = 4``
for this int. For example, a bitfield struct member has:
* btf member bit offset 100 from the start of the structure,
* btf member pointing to an int type,
* the int type has ``BTF_INT_OFFSET() = 2`` and ``BTF_INT_BITS() = 4``
Then in the struct memory layout, this member will occupy ``4`` bits starting
from bits ``100 + 2 = 102``.
Alternatively, the bitfield struct member can be the following to access the
same bits as the above:
* btf member bit offset 102,
* btf member pointing to an int type,
* the int type has ``BTF_INT_OFFSET() = 0`` and ``BTF_INT_BITS() = 4``

2
Documentation/devicetree/bindings/arm/cpus.yaml
View File

@ -228,7 +228,7 @@ patternProperties:
- renesas,r9a06g032-smp
- rockchip,rk3036-smp
- rockchip,rk3066-smp
- socionext,milbeaut-m10v-smp
- socionext,milbeaut-m10v-smp
- ste,dbx500-smp
cpu-release-addr:

4
Documentation/devicetree/bindings/hwmon/adc128d818.txt
View File

@ -26,7 +26,7 @@ Required node properties:
Optional node properties:
- ti,mode: Operation mode (see above).
- ti,mode: Operation mode (u8) (see above).
Example (operation mode 2):
@ -34,5 +34,5 @@ Example (operation mode 2):
adc128d818@1d {
compatible = "ti,adc128d818";
reg = <0x1d>;
ti,mode = <2>;
ti,mode = /bits/ 8 <2>;
};

0
Documentation/devicetree/bindings/i2c/i2c-xscale.txt → Documentation/devicetree/bindings/i2c/i2c-iop3xx.txt
View File

0
Documentation/devicetree/bindings/i2c/i2c-mtk.txt → Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt
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0
Documentation/devicetree/bindings/i2c/i2c-st-ddci2c.txt → Documentation/devicetree/bindings/i2c/i2c-stu300.txt
View File

0
Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt → Documentation/devicetree/bindings/i2c/i2c-sun6i-p2wi.txt
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0
Documentation/devicetree/bindings/i2c/i2c-vt8500.txt → Documentation/devicetree/bindings/i2c/i2c-wmt.txt
View File

1
Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
View File

@ -16,6 +16,7 @@ Required properties:
- "renesas,irqc-r8a7793" (R-Car M2-N)
- "renesas,irqc-r8a7794" (R-Car E2)
- "renesas,intc-ex-r8a774a1" (RZ/G2M)
- "renesas,intc-ex-r8a774c0" (RZ/G2E)
- "renesas,intc-ex-r8a7795" (R-Car H3)
- "renesas,intc-ex-r8a7796" (R-Car M3-W)
- "renesas,intc-ex-r8a77965" (R-Car M3-N)

2
Documentation/devicetree/bindings/net/davinci_emac.txt
View File

@ -20,6 +20,8 @@ Required properties:
Optional properties:
- phy-handle: See ethernet.txt file in the same directory.
If absent, davinci_emac driver defaults to 100/FULL.
- nvmem-cells: phandle, reference to an nvmem node for the MAC address
- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used
- ti,davinci-rmii-en: 1 byte, 1 means use RMII
- ti,davinci-no-bd-ram: boolean, does EMAC have BD RAM?

73
Documentation/devicetree/bindings/net/dsa/qca8k.txt
View File

@ -12,10 +12,15 @@ Required properties:
Subnodes:
The integrated switch subnode should be specified according to the binding
described in dsa/dsa.txt. As the QCA8K switches do not have a N:N mapping of
port and PHY id, each subnode describing a port needs to have a valid phandle
referencing the internal PHY connected to it. The CPU port of this switch is
always port 0.
described in dsa/dsa.txt. If the QCA8K switch is connect to a SoC's external
mdio-bus each subnode describing a port needs to have a valid phandle
referencing the internal PHY it is connected to. This is because there's no
N:N mapping of port and PHY id.
Don't use mixed external and internal mdio-bus configurations, as this is
not supported by the hardware.
The CPU port of this switch is always port 0.
A CPU port node has the following optional node:
@ -31,8 +36,9 @@ For QCA8K the 'fixed-link' sub-node supports only the following properties:
- 'full-duplex' (boolean, optional), to indicate that full duplex is
used. When absent, half duplex is assumed.
Example:
Examples:
for the external mdio-bus configuration:
&mdio0 {
phy_port1: phy@0 {
@ -55,12 +61,12 @@ Example:
reg = <4>;
};
switch0@0 {
switch@10 {
compatible = "qca,qca8337";
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
reg = <0x10>;
ports {
#address-cells = <1>;
@ -108,3 +114,56 @@ Example:
};
};
};
for the internal master mdio-bus configuration:
&mdio0 {
switch@10 {
compatible = "qca,qca8337";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x10>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
label = "cpu";
ethernet = <&gmac1>;
phy-mode = "rgmii";
fixed-link {
speed = 1000;
full-duplex;
};
};
port@1 {
reg = <1>;
label = "lan1";
};
port@2 {
reg = <2>;
label = "lan2";
};
port@3 {
reg = <3>;
label = "lan3";
};
port@4 {
reg = <4>;
label = "lan4";
};
port@5 {
reg = <5>;
label = "wan";
};
};
};
};

5
Documentation/devicetree/bindings/net/ethernet.txt
View File

@ -10,15 +10,14 @@ Documentation/devicetree/bindings/phy/phy-bindings.txt.
the boot program; should be used in cases where the MAC address assigned to
the device by the boot program is different from the "local-mac-address"
property;
- nvmem-cells: phandle, reference to an nvmem node for the MAC address;
- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used;
- max-speed: number, specifies maximum speed in Mbit/s supported by the device;
- max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than
the maximum frame size (there's contradiction in the Devicetree
Specification).
- phy-mode: string, operation mode of the PHY interface. This is now a de-facto
standard property; supported values are:
* "internal"
* "internal" (Internal means there is not a standard bus between the MAC and
the PHY, something proprietary is being used to embed the PHY in the MAC.)
* "mii"
* "gmii"
* "sgmii"

4
Documentation/devicetree/bindings/net/macb.txt
View File

@ -26,6 +26,10 @@ Required properties:
Optional elements: 'tsu_clk'
- clocks: Phandles to input clocks.
Optional properties:
- nvmem-cells: phandle, reference to an nvmem node for the MAC address
- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used
Optional properties for PHY child node:
- reset-gpios : Should specify the gpio for phy reset
- magic-packet : If present, indicates that the hardware supports waking

1
Documentation/devicetree/bindings/serial/mtk-uart.txt
View File

@ -16,6 +16,7 @@ Required properties:
* "mediatek,mt8127-uart" for MT8127 compatible UARTS
* "mediatek,mt8135-uart" for MT8135 compatible UARTS
* "mediatek,mt8173-uart" for MT8173 compatible UARTS
* "mediatek,mt8183-uart", "mediatek,mt6577-uart" for MT8183 compatible UARTS
* "mediatek,mt6577-uart" for MT6577 and all of the above
- reg: The base address of the UART register bank.

7
Documentation/devicetree/bindings/sound/adi,axi-i2s.txt
View File

@ -1,5 +1,8 @@
ADI AXI-I2S controller
The core can be generated with transmit (playback), only receive
(capture) or both directions enabled.
Required properties:
- compatible : Must be "adi,axi-i2s-1.00.a"
- reg : Must contain I2S core's registers location and length
@ -9,8 +12,8 @@ Required properties:
- clock-names : "axi" for the clock to the AXI interface, "ref" for the sample
rate reference clock.
- dmas: Pairs of phandle and specifier for the DMA channels that are used by
the core. The core expects two dma channels, one for transmit and one for
receive.
the core. The core expects two dma channels if both transmit and receive are
enabled, one channel otherwise.
- dma-names : "tx" for the transmit channel, "rx" for the receive channel.
For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties

4
Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
View File

@ -2,7 +2,9 @@
Required properties:
- compatible: 'amlogic,axg-toddr' or
'amlogic,axg-frddr'
'amlogic,axg-toddr' or
'amlogic,g12a-frddr' or
'amlogic,g12a-toddr'
- reg: physical base address of the controller and length of memory
mapped region.
- interrupts: interrupt specifier for the fifo.

3
Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt
View File

@ -1,7 +1,8 @@
* Amlogic Audio PDM input
Required properties:
- compatible: 'amlogic,axg-pdm'
- compatible: 'amlogic,axg-pdm' or
'amlogic,g12a-pdm'
- reg: physical base address of the controller and length of memory
mapped region.
- clocks: list of clock phandle, one for each entry clock-names.

3
Documentation/devicetree/bindings/sound/amlogic,axg-spdifin.txt
View File

@ -1,7 +1,8 @@
* Amlogic Audio SPDIF Input
Required properties:
- compatible: 'amlogic,axg-spdifin'
- compatible: 'amlogic,axg-spdifin' or
'amlogic,g12a-spdifin'
- interrupts: interrupt specifier for the spdif input.
- clocks: list of clock phandle, one for each entry clock-names.
- clock-names: should contain the following:

3
Documentation/devicetree/bindings/sound/amlogic,axg-spdifout.txt
View File

@ -1,7 +1,8 @@
* Amlogic Audio SPDIF Output
Required properties:
- compatible: 'amlogic,axg-spdifout'
- compatible: 'amlogic,axg-spdifout' or
'amlogic,g12a-spdifout'
- clocks: list of clock phandle, one for each entry clock-names.
- clock-names: should contain the following:
* "pclk" : peripheral clock.

4
Documentation/devicetree/bindings/sound/amlogic,axg-tdm-formatters.txt
View File

@ -2,7 +2,9 @@
Required properties:
- compatible: 'amlogic,axg-tdmin' or
'amlogic,axg-tdmout'
'amlogic,axg-tdmout' or
'amlogic,g12a-tdmin' or
'amlogic,g12a-tdmout'
- reg: physical base address of the controller and length of memory
mapped region.
- clocks: list of clock phandle, one for each entry clock-names.

39
Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt Normal file
View File

@ -0,0 +1,39 @@
Cirrus Logic Lochnagar Audio Development Board
Lochnagar is an evaluation and development board for Cirrus Logic
Smart CODEC and Amp devices. It allows the connection of most Cirrus
Logic devices on mini-cards, as well as allowing connection of
various application processor systems to provide a full evaluation
platform. Audio system topology, clocking and power can all be
controlled through the Lochnagar, allowing the device under test
to be used in a variety of possible use cases.
This binding document describes the binding for the audio portion
of the driver.
This binding must be part of the Lochnagar MFD binding:
[4] ../mfd/cirrus,lochnagar.txt
Required properties:
- compatible : One of the following strings:
"cirrus,lochnagar2-soundcard"
- #sound-dai-cells : Must be set to 1.
- clocks : Contains an entry for each entry in clock-names.
- clock-names : Must include the following clocks:
"mclk" Master clock source for the sound card, should normally
be set to LOCHNAGAR_SOUNDCARD_MCLK provided by the Lochnagar
clock driver.
Example:
lochnagar-sc {
compatible = "cirrus,lochnagar2-soundcard";
#sound-dai-cells = <1>;
clocks = <&lochnagar_clk LOCHNAGAR_SOUNDCARD_MCLK>;
clock-names = "mclk";
};

16
Documentation/devicetree/bindings/sound/cs42l51.txt
View File

@ -1,6 +1,17 @@
CS42L51 audio CODEC
Required properties:
- compatible : "cirrus,cs42l51"
- reg : the I2C address of the device for I2C.
Optional properties:
- VL-supply, VD-supply, VA-supply, VAHP-supply: power supplies for the device,
as covered in Documentation/devicetree/bindings/regulator/regulator.txt.
- reset-gpios : GPIO specification for the reset pin. If specified, it will be
deasserted before starting the communication with the codec.
- clocks : a list of phandles + clock-specifiers, one for each entry in
clock-names
@ -14,4 +25,9 @@ cs42l51: cs42l51@4a {
reg = <0x4a>;
clocks = <&mclk_prov>;
clock-names = "MCLK";
VL-supply = <&reg_audio>;
VD-supply = <&reg_audio>;
VA-supply = <&reg_audio>;
VAHP-supply = <&reg_audio>;
reset-gpios = <&gpiog 9 GPIO_ACTIVE_LOW>;
};

8
Documentation/devicetree/bindings/sound/da7219.txt
View File

@ -23,8 +23,8 @@ Optional properties:
interrupt is to be used to wake system, otherwise "irq" should be used.
- wakeup-source: Flag to indicate this device can wake system (suspend/resume).
- #clock-cells : Should be set to '<0>', only one clock source provided;
- clock-output-names : Name given for DAI clocks output;
- #clock-cells : Should be set to '<1>', two clock sources provided;
- clock-output-names : Names given for DAI clock outputs (WCLK & BCLK);
- clocks : phandle and clock specifier for codec MCLK.
- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
@ -84,8 +84,8 @@ Example:
VDDMIC-supply = <&reg_audio>;
VDDIO-supply = <&reg_audio>;
#clock-cells = <0>;
clock-output-names = "dai-clks";
#clock-cells = <1>;
clock-output-names = "dai-wclk", "dai-bclk";
clocks = <&clks 201>;
clock-names = "mclk";

50
Documentation/devicetree/bindings/sound/fsl,audmix.txt Normal file
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@ -0,0 +1,50 @@
NXP Audio Mixer (AUDMIX).
The Audio Mixer is a on-chip functional module that allows mixing of two
audio streams into a single audio stream. Audio Mixer has two input serial
audio interfaces. These are driven by two Synchronous Audio interface
modules (SAI). Each input serial interface carries 8 audio channels in its
frame in TDM manner. Mixer mixes audio samples of corresponding channels
from two interfaces into a single sample. Before mixing, audio samples of
two inputs can be attenuated based on configuration. The output of the
Audio Mixer is also a serial audio interface. Like input interfaces it has
the same TDM frame format. This output is used to drive the serial DAC TDM
interface of audio codec and also sent to the external pins along with the
receive path of normal audio SAI module for readback by the CPU.
The output of Audio Mixer can be selected from any of the three streams
- serial audio input 1
- serial audio input 2
- mixed audio
Mixing operation is independent of audio sample rate but the two audio
input streams must have same audio sample rate with same number of channels
in TDM frame to be eligible for mixing.
Device driver required properties:
=================================
- compatible : Compatible list, contains "fsl,imx8qm-audmix"
- reg : Offset and length of the register set for the device.
- clocks : Must contain an entry for each entry in clock-names.
- clock-names : Must include the "ipg" for register access.
- power-domains : Must contain the phandle to AUDMIX power domain node
- dais : Must contain a list of phandles to AUDMIX connected
DAIs. The current implementation requires two phandles
to SAI interfaces to be provided, the first SAI in the
list being used to route the AUDMIX output.
Device driver configuration example:
======================================
audmix: audmix@59840000 {
compatible = "fsl,imx8qm-audmix";
reg = <0x0 0x59840000 0x0 0x10000>;
clocks = <&clk IMX8QXP_AUD_AUDMIX_IPG>;
clock-names = "ipg";
power-domains = <&pd_audmix>;
dais = <&sai4>, <&sai5>;
};

43
Documentation/devicetree/bindings/sound/mchp-i2s-mcc.txt Normal file
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@ -0,0 +1,43 @@
* Microchip I2S Multi-Channel Controller
Required properties:
- compatible: Should be "microchip,sam9x60-i2smcc".
- reg: Should be the physical base address of the controller and the
length of memory mapped region.
- interrupts: Should contain the interrupt for the controller.
- dmas: Should be one per channel name listed in the dma-names property,
as described in atmel-dma.txt and dma.txt files.
- dma-names: Identifier string for each DMA request line in the dmas property.
Two dmas have to be defined, "tx" and "rx".
- clocks: Must contain an entry for each entry in clock-names.
Please refer to clock-bindings.txt.
- clock-names: Should be one of each entry matching the clocks phandles list:
- "pclk" (peripheral clock) Required.
- "gclk" (generated clock) Optional (1).
Optional properties:
- pinctrl-0: Should specify pin control groups used for this controller.
- princtrl-names: Should contain only one value - "default".
(1) : Only the peripheral clock is required. The generated clock is optional
and should be set mostly when Master Mode is required.
Example:
i2s@f001c000 {
compatible = "microchip,sam9x60-i2smcc";
reg = <0xf001c000 0x100>;
interrupts = <34 IRQ_TYPE_LEVEL_HIGH 7>;
dmas = <&dma0
(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
AT91_XDMAC_DT_PERID(36))>,
<&dma0
(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
AT91_XDMAC_DT_PERID(37))>;
dma-names = "tx", "rx";
clocks = <&i2s_clk>, <&i2s_gclk>;
clock-names = "pclk", "gclk";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2s_default>;
};

15
Documentation/devicetree/bindings/sound/mt8183-da7219-max98357.txt Normal file
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@ -0,0 +1,15 @@
MT8183 with MT6358, DA7219 and MAX98357 CODECS
Required properties:
- compatible : "mediatek,mt8183_da7219_max98357"
- mediatek,headset-codec: the phandles of da7219 codecs
- mediatek,platform: the phandle of MT8183 ASoC platform
Example:
sound {
compatible = "mediatek,mt8183_da7219_max98357";
mediatek,headset-codec = <&da7219>;
mediatek,platform = <&afe>;
};

15
Documentation/devicetree/bindings/sound/mt8183-mt6358-ts3a227-max98357.txt Normal file
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@ -0,0 +1,15 @@
MT8183 with MT6358, TS3A227 and MAX98357 CODECS
Required properties:
- compatible : "mediatek,mt8183_mt6358_ts3a227_max98357"
- mediatek,headset-codec: the phandles of ts3a227 codecs
- mediatek,platform: the phandle of MT8183 ASoC platform
Example:
sound {
compatible = "mediatek,mt8183_mt6358_ts3a227_max98357";
mediatek,headset-codec = <&ts3a227>;
mediatek,platform = <&afe>;
};

8
Documentation/devicetree/bindings/sound/renesas,rsnd.txt
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@ -266,6 +266,7 @@ Required properties:
- "renesas,rcar_sound-r8a7743" (RZ/G1M)
- "renesas,rcar_sound-r8a7744" (RZ/G1N)
- "renesas,rcar_sound-r8a7745" (RZ/G1E)
- "renesas,rcar_sound-r8a77470" (RZ/G1C)
- "renesas,rcar_sound-r8a774a1" (RZ/G2M)
- "renesas,rcar_sound-r8a774c0" (RZ/G2E)
- "renesas,rcar_sound-r8a7778" (R-Car M1A)
@ -282,7 +283,12 @@ Required properties:
- reg : Should contain the register physical address.
required register is
SRU/ADG/SSI if generation1
SRU/ADG/SSIU/SSI if generation2
SRU/ADG/SSIU/SSI/AUDIO-DMAC-periperi if generation2/generation3
Select extended AUDIO-DMAC-periperi address if SoC has it,
otherwise select normal AUDIO-DMAC-periperi address.
- reg-names : Should contain the register names.
scu/adg/ssi if generation1
scu/adg/ssiu/ssi/audmapp if generation2/generation3
- rcar_sound,ssi : Should contain SSI feature.
The number of SSI subnode should be same as HW.
see below for detail.

5
Documentation/devicetree/bindings/sound/rockchip,pdm.txt
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@ -3,6 +3,9 @@
Required properties:
- compatible: "rockchip,pdm"
- "rockchip,px30-pdm"
- "rockchip,rk1808-pdm"
- "rockchip,rk3308-pdm"
- reg: physical base address of the controller and length of memory mapped
region.
- dmas: DMA specifiers for rx dma. See the DMA client binding,
@ -12,6 +15,8 @@ Required properties:
- clock-names: should contain following:
- "pdm_hclk": clock for PDM BUS
- "pdm_clk" : clock for PDM controller
- resets: a list of phandle + reset-specifer paris, one for each entry in reset-names.
- reset-names: reset names, should include "pdm-m".
- pinctrl-names: Must contain a "default" entry.
- pinctrl-N: One property must exist for each entry in
pinctrl-names. See ../pinctrl/pinctrl-bindings.txt

5
Documentation/devicetree/bindings/sound/rt5651.txt
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@ -22,6 +22,11 @@ Optional properties:
2: Use JD1_2 pin for jack-detect
3: Use JD2 pin for jack-detect
- realtek,jack-detect-not-inverted
bool. Normal jack-detect switches give an inverted (active-low) signal,
set this bool in the rare case you've a jack-detect switch which is not
inverted.
- realtek,over-current-threshold-microamp
u32, micbias over-current detection threshold in µA, valid values are
600, 1500 and 2000µA.

2
Documentation/devicetree/bindings/sound/simple-amplifier.txt
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@ -2,9 +2,9 @@ Simple Amplifier Audio Driver
Required properties:
- compatible : "dioo,dio2125" or "simple-audio-amplifier"
- enable-gpios : the gpio connected to the enable pin of the simple amplifier
Optional properties:
- enable-gpios : the gpio connected to the enable pin of the simple amplifier
- VCC-supply : power supply for the device, as covered
in Documentation/devicetree/bindings/regulator/regulator.txt

2
Documentation/devicetree/bindings/sound/simple-card.txt
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@ -24,6 +24,8 @@ Optional properties:
a microphone is attached.
- simple-audio-card,aux-devs : List of phandles pointing to auxiliary devices, such
as amplifiers, to be added to the sound card.
- simple-audio-card,pin-switches : List of strings containing the widget names for
which pin switches must be created.
Optional subnodes:

19
Documentation/devicetree/bindings/sound/sprd-mcdt.txt Normal file
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@ -0,0 +1,19 @@
Spreadtrum Multi-Channel Data Transfer Binding
The Multi-channel data transfer controller is used for sound stream
transmission between audio subsystem and other AP/CP subsystem. It
supports 10 DAC channel and 10 ADC channel, and each channel can be
configured with DMA mode or interrupt mode.
Required properties:
- compatible: Should be "sprd,sc9860-mcdt".
- reg: Should contain registers address and length.
- interrupts: Should contain one interrupt shared by all channel.
Example:
mcdt@41490000 {
compatible = "sprd,sc9860-mcdt";
reg = <0 0x41490000 0 0x170>;
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
};

14
Documentation/driver-api/usb/power-management.rst
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@ -370,11 +370,15 @@ autosuspend the interface's device. When the usage counter is = 0
then the interface is considered to be idle, and the kernel may
autosuspend the device.
Drivers need not be concerned about balancing changes to the usage
counter; the USB core will undo any remaining "get"s when a driver
is unbound from its interface. As a corollary, drivers must not call
any of the ``usb_autopm_*`` functions after their ``disconnect``
routine has returned.
Drivers must be careful to balance their overall changes to the usage
counter. Unbalanced "get"s will remain in effect when a driver is
unbound from its interface, preventing the device from going into
runtime suspend should the interface be bound to a driver again. On
the other hand, drivers are allowed to achieve this balance by calling
the ``usb_autopm_*`` functions even after their ``disconnect`` routine
has returned -- say from within a work-queue routine -- provided they
retain an active reference to the interface (via ``usb_get_intf`` and
``usb_put_intf``).
Drivers using the async routines are responsible for their own
synchronization and mutual exclusion.

365
Documentation/filesystems/mount_api.txt
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@ -12,11 +12,13 @@ CONTENTS
(4) Filesystem context security.
(5) VFS filesystem context operations.
(5) VFS filesystem context API.
(6) Parameter description.
(6) Superblock creation helpers.
(7) Parameter helper functions.
(7) Parameter description.
(8) Parameter helper functions.
========
@ -41,12 +43,15 @@ The creation of new mounts is now to be done in a multistep process:
(7) Destroy the context.
To support this, the file_system_type struct gains a new field:
To support this, the file_system_type struct gains two new fields:
int (*init_fs_context)(struct fs_context *fc);
const struct fs_parameter_description *parameters;
which is invoked to set up the filesystem-specific parts of a filesystem
context, including the additional space.
The first is invoked to set up the filesystem-specific parts of a filesystem
context, including the additional space, and the second points to the
parameter description for validation at registration time and querying by a
future system call.
Note that security initialisation is done *after* the filesystem is called so
that the namespaces may be adjusted first.
@ -73,9 +78,9 @@ context. This is represented by the fs_context structure:
void *s_fs_info;
unsigned int sb_flags;
unsigned int sb_flags_mask;
unsigned int s_iflags;
unsigned int lsm_flags;
enum fs_context_purpose purpose:8;
bool sloppy:1;
bool silent:1;
...
};
@ -141,6 +146,10 @@ The fs_context fields are as follows:
Which bits SB_* flags are to be set/cleared in super_block::s_flags.
(*) unsigned int s_iflags
These will be bitwise-OR'd with s->s_iflags when a superblock is created.
(*) enum fs_context_purpose
This indicates the purpose for which the context is intended. The
@ -150,17 +159,6 @@ The fs_context fields are as follows:
FS_CONTEXT_FOR_SUBMOUNT -- New automatic submount of extant mount
FS_CONTEXT_FOR_RECONFIGURE -- Change an existing mount
(*) bool sloppy
(*) bool silent
These are set if the sloppy or silent mount options are given.
[NOTE] sloppy is probably unnecessary when userspace passes over one
option at a time since the error can just be ignored if userspace deems it
to be unimportant.
[NOTE] silent is probably redundant with sb_flags & SB_SILENT.
The mount context is created by calling vfs_new_fs_context() or
vfs_dup_fs_context() and is destroyed with put_fs_context(). Note that the
structure is not refcounted.
@ -342,28 +340,47 @@ number of operations used by the new mount code for this purpose:
It should return 0 on success or a negative error code on failure.
=================================
VFS FILESYSTEM CONTEXT OPERATIONS
=================================
==========================
VFS FILESYSTEM CONTEXT API
==========================
There are four operations for creating a filesystem context and
one for destroying a context:
There are four operations for creating a filesystem context and one for
destroying a context:
(*) struct fs_context *vfs_new_fs_context(struct file_system_type *fs_type,
struct dentry *reference,
unsigned int sb_flags,
unsigned int sb_flags_mask,
enum fs_context_purpose purpose);
(*) struct fs_context *fs_context_for_mount(
struct file_system_type *fs_type,
unsigned int sb_flags);
Create a filesystem context for a given filesystem type and purpose. This
allocates the filesystem context, sets the superblock flags, initialises
the security and calls fs_type->init_fs_context() to initialise the
filesystem private data.
Allocate a filesystem context for the purpose of setting up a new mount,
whether that be with a new superblock or sharing an existing one. This
sets the superblock flags, initialises the security and calls
fs_type->init_fs_context() to initialise the filesystem private data.
reference can be NULL or it may indicate the root dentry of a superblock
that is going to be reconfigured (FS_CONTEXT_FOR_RECONFIGURE) or
the automount point that triggered a submount (FS_CONTEXT_FOR_SUBMOUNT).
This is provided as a source of namespace information.
fs_type specifies the filesystem type that will manage the context and
sb_flags presets the superblock flags stored therein.
(*) struct fs_context *fs_context_for_reconfigure(
struct dentry *dentry,
unsigned int sb_flags,
unsigned int sb_flags_mask);
Allocate a filesystem context for the purpose of reconfiguring an
existing superblock. dentry provides a reference to the superblock to be
configured. sb_flags and sb_flags_mask indicate which superblock flags
need changing and to what.
(*) struct fs_context *fs_context_for_submount(
struct file_system_type *fs_type,
struct dentry *reference);
Allocate a filesystem context for the purpose of creating a new mount for
an automount point or other derived superblock. fs_type specifies the
filesystem type that will manage the context and the reference dentry
supplies the parameters. Namespaces are propagated from the reference
dentry's superblock also.
Note that it's not a requirement that the reference dentry be of the same
filesystem type as fs_type.
(*) struct fs_context *vfs_dup_fs_context(struct fs_context *src_fc);
@ -390,20 +407,6 @@ context pointer or a negative error code.
For the remaining operations, if an error occurs, a negative error code will be
returned.
(*) int vfs_get_tree(struct fs_context *fc);
Get or create the mountable root and superblock, using the parameters in
the filesystem context to select/configure the superblock. This invokes
the ->validate() op and then the ->get_tree() op.
[NOTE] ->validate() could perhaps be rolled into ->get_tree() and
->reconfigure().
(*) struct vfsmount *vfs_create_mount(struct fs_context *fc);
Create a mount given the parameters in the specified filesystem context.
Note that this does not attach the mount to anything.
(*) int vfs_parse_fs_param(struct fs_context *fc,
struct fs_parameter *param);
@ -432,17 +435,80 @@ returned.
clear the pointer, but then becomes responsible for disposing of the
object.
(*) int vfs_parse_fs_string(struct fs_context *fc, char *key,
(*) int vfs_parse_fs_string(struct fs_context *fc, const char *key,
const char *value, size_t v_size);
A wrapper around vfs_parse_fs_param() that just passes a constant string.
A wrapper around vfs_parse_fs_param() that copies the value string it is
passed.
(*) int generic_parse_monolithic(struct fs_context *fc, void *data);
Parse a sys_mount() data page, assuming the form to be a text list
consisting of key[=val] options separated by commas. Each item in the
list is passed to vfs_mount_option(). This is the default when the
->parse_monolithic() operation is NULL.
->parse_monolithic() method is NULL.
(*) int vfs_get_tree(struct fs_context *fc);
Get or create the mountable root and superblock, using the parameters in
the filesystem context to select/configure the superblock. This invokes
the ->get_tree() method.
(*) struct vfsmount *vfs_create_mount(struct fs_context *fc);
Create a mount given the parameters in the specified filesystem context.
Note that this does not attach the mount to anything.
===========================
SUPERBLOCK CREATION HELPERS
===========================
A number of VFS helpers are available for use by filesystems for the creation
or looking up of superblocks.
(*) struct super_block *
sget_fc(struct fs_context *fc,
int (*test)(struct super_block *sb, struct fs_context *fc),
int (*set)(struct super_block *sb, struct fs_context *fc));
This is the core routine. If test is non-NULL, it searches for an
existing superblock matching the criteria held in the fs_context, using
the test function to match them. If no match is found, a new superblock
is created and the set function is called to set it up.
Prior to the set function being called, fc->s_fs_info will be transferred
to sb->s_fs_info - and fc->s_fs_info will be cleared if set returns
success (ie. 0).
The following helpers all wrap sget_fc():
(*) int vfs_get_super(struct fs_context *fc,
enum vfs_get_super_keying keying,
int (*fill_super)(struct super_block *sb,
struct fs_context *fc))
This creates/looks up a deviceless superblock. The keying indicates how
many superblocks of this type may exist and in what manner they may be
shared:
(1) vfs_get_single_super
Only one such superblock may exist in the system. Any further
attempt to get a new superblock gets this one (and any parameter
differences are ignored).
(2) vfs_get_keyed_super
Multiple superblocks of this type may exist and they're keyed on
their s_fs_info pointer (for example this may refer to a
namespace).
(3) vfs_get_independent_super
Multiple independent superblocks of this type may exist. This
function never matches an existing one and always creates a new
one.
=====================
@ -454,35 +520,22 @@ There's a core description struct that links everything together:
struct fs_parameter_description {
const char name[16];
u8 nr_params;
u8 nr_alt_keys;
u8 nr_enums;
bool ignore_unknown;
bool no_source;
const char *const *keys;
const struct constant_table *alt_keys;
const struct fs_parameter_spec *specs;
const struct fs_parameter_enum *enums;
};
For example:
enum afs_param {
enum {
Opt_autocell,
Opt_bar,
Opt_dyn,
Opt_foo,
Opt_source,
nr__afs_params
};
static const struct fs_parameter_description afs_fs_parameters = {
.name = "kAFS",
.nr_params = nr__afs_params,
.nr_alt_keys = ARRAY_SIZE(afs_param_alt_keys),
.nr_enums = ARRAY_SIZE(afs_param_enums),
.keys = afs_param_keys,
.alt_keys = afs_param_alt_keys,
.specs = afs_param_specs,
.enums = afs_param_enums,
};
@ -494,28 +547,24 @@ The members are as follows:
The name to be used in error messages generated by the parse helper
functions.
(2) u8 nr_params;
(2) const struct fs_parameter_specification *specs;
The number of discrete parameter identifiers. This indicates the number
of elements in the ->types[] array and also limits the values that may be
used in the values that the ->keys[] array maps to.
Table of parameter specifications, terminated with a null entry, where the
entries are of type:
It is expected that, for example, two parameters that are related, say
"acl" and "noacl" with have the same ID, but will be flagged to indicate
that one is the inverse of the other. The value can then be picked out
from the parse result.
(3) const struct fs_parameter_specification *specs;
Table of parameter specifications, where the entries are of type:
struct fs_parameter_type {
enum fs_parameter_spec type:8;
u8 flags;
struct fs_parameter_spec {
const char *name;
u8 opt;
enum fs_parameter_type type:8;
unsigned short flags;
};
and the parameter identifier is the index to the array. 'type' indicates
the desired value type and must be one of:
The 'name' field is a string to match exactly to the parameter key (no
wildcards, patterns and no case-independence) and 'opt' is the value that
will be returned by the fs_parser() function in the case of a successful
match.
The 'type' field indicates the desired value type and must be one of:
TYPE NAME EXPECTED VALUE RESULT IN
======================= ======================= =====================
@ -525,85 +574,65 @@ The members are as follows:
fs_param_is_u32_octal 32-bit octal int result->uint_32
fs_param_is_u32_hex 32-bit hex int result->uint_32
fs_param_is_s32 32-bit signed int result->int_32
fs_param_is_u64 64-bit unsigned int result->uint_64
fs_param_is_enum Enum value name result->uint_32
fs_param_is_string Arbitrary string param->string
fs_param_is_blob Binary blob param->blob
fs_param_is_blockdev Blockdev path * Needs lookup
fs_param_is_path Path * Needs lookup
fs_param_is_fd File descriptor param->file
And each parameter can be qualified with 'flags':
fs_param_v_optional The value is optional
fs_param_neg_with_no If key name is prefixed with "no", it is false
fs_param_neg_with_empty If value is "", it is false
fs_param_deprecated The parameter is deprecated.
For example:
static const struct fs_parameter_spec afs_param_specs[nr__afs_params] = {
[Opt_autocell] = { fs_param_is flag },
[Opt_bar] = { fs_param_is_enum },
[Opt_dyn] = { fs_param_is flag },
[Opt_foo] = { fs_param_is_bool, fs_param_neg_with_no },
[Opt_source] = { fs_param_is_string },
};
fs_param_is_fd File descriptor result->int_32
Note that if the value is of fs_param_is_bool type, fs_parse() will try
to match any string value against "0", "1", "no", "yes", "false", "true".
[!] NOTE that the table must be sorted according to primary key name so
that ->keys[] is also sorted.
Each parameter can also be qualified with 'flags':
(4) const char *const *keys;
fs_param_v_optional The value is optional
fs_param_neg_with_no result->negated set if key is prefixed with "no"
fs_param_neg_with_empty result->negated set if value is ""
fs_param_deprecated The parameter is deprecated.
Table of primary key names for the parameters. There must be one entry
per defined parameter. The table is optional if ->nr_params is 0. The
table is just an array of names e.g.:
These are wrapped with a number of convenience wrappers:
static const char *const afs_param_keys[nr__afs_params] = {
[Opt_autocell] = "autocell",
[Opt_bar] = "bar",
[Opt_dyn] = "dyn",
[Opt_foo] = "foo",
[Opt_source] = "source",
MACRO SPECIFIES
======================= ===============================================
fsparam_flag() fs_param_is_flag
fsparam_flag_no() fs_param_is_flag, fs_param_neg_with_no
fsparam_bool() fs_param_is_bool
fsparam_u32() fs_param_is_u32
fsparam_u32oct() fs_param_is_u32_octal
fsparam_u32hex() fs_param_is_u32_hex
fsparam_s32() fs_param_is_s32
fsparam_u64() fs_param_is_u64
fsparam_enum() fs_param_is_enum
fsparam_string() fs_param_is_string
fsparam_blob() fs_param_is_blob
fsparam_bdev() fs_param_is_blockdev
fsparam_path() fs_param_is_path
fsparam_fd() fs_param_is_fd
all of which take two arguments, name string and option number - for
example:
static const struct fs_parameter_spec afs_param_specs[] = {
fsparam_flag ("autocell", Opt_autocell),
fsparam_flag ("dyn", Opt_dyn),
fsparam_string ("source", Opt_source),
fsparam_flag_no ("foo", Opt_foo),
{}
};
[!] NOTE that the table must be sorted such that the table can be searched
with bsearch() using strcmp(). This means that the Opt_* values must
correspond to the entries in this table.
(5) const struct constant_table *alt_keys;
u8 nr_alt_keys;
Table of additional key names and their mappings to parameter ID plus the
number of elements in the table. This is optional. The table is just an
array of { name, integer } pairs, e.g.:
static const struct constant_table afs_param_keys[] = {
{ "baz", Opt_bar },
{ "dynamic", Opt_dyn },
};
[!] NOTE that the table must be sorted such that strcmp() can be used with
bsearch() to search the entries.
The parameter ID can also be fs_param_key_removed to indicate that a
deprecated parameter has been removed and that an error will be given.
This differs from fs_param_deprecated where the parameter may still have
an effect.
Further, the behaviour of the parameter may differ when an alternate name
is used (for instance with NFS, "v3", "v4.2", etc. are alternate names).
An addition macro, __fsparam() is provided that takes an additional pair
of arguments to specify the type and the flags for anything that doesn't
match one of the above macros.
(6) const struct fs_parameter_enum *enums;
u8 nr_enums;
Table of enum value names to integer mappings and the number of elements
stored therein. This is of type:
Table of enum value names to integer mappings, terminated with a null
entry. This is of type:
struct fs_parameter_enum {
u8 param_id;
u8 opt;
char name[14];
u8 value;
};
@ -621,11 +650,6 @@ The members are as follows:
try to look the value up in the enum table and the result will be stored
in the parse result.
(7) bool no_source;
If this is set, fs_parse() will ignore any "source" parameter and not
pass it to the filesystem.
The parser should be pointed to by the parser pointer in the file_system_type
struct as this will provide validation on registration (if
CONFIG_VALIDATE_FS_PARSER=y) and will allow the description to be queried from
@ -650,9 +674,8 @@ process the parameters it is given.
int value;
};
and it must be sorted such that it can be searched using bsearch() using
strcmp(). If a match is found, the corresponding value is returned. If a
match isn't found, the not_found value is returned instead.
If a match is found, the corresponding value is returned. If a match
isn't found, the not_found value is returned instead.
(*) bool validate_constant_table(const struct constant_table *tbl,
size_t tbl_size,
@ -665,36 +688,36 @@ process the parameters it is given.
should just be set to lie inside the low-to-high range.
If all is good, true is returned. If the table is invalid, errors are
logged to dmesg, the stack is dumped and false is returned.
logged to dmesg and false is returned.
(*) bool fs_validate_description(const struct fs_parameter_description *desc);
This performs some validation checks on a parameter description. It
returns true if the description is good and false if it is not. It will
log errors to dmesg if validation fails.
(*) int fs_parse(struct fs_context *fc,
const struct fs_param_parser *parser,
const struct fs_parameter_description *desc,
struct fs_parameter *param,
struct fs_param_parse_result *result);
struct fs_parse_result *result);
This is the main interpreter of parameters. It uses the parameter
description (parser) to look up the name of the parameter to use and to
convert that to a parameter ID (stored in result->key).
description to look up a parameter by key name and to convert that to an
option number (which it returns).
If successful, and if the parameter type indicates the result is a
boolean, integer or enum type, the value is converted by this function and
the result stored in result->{boolean,int_32,uint_32}.
the result stored in result->{boolean,int_32,uint_32,uint_64}.
If a match isn't initially made, the key is prefixed with "no" and no
value is present then an attempt will be made to look up the key with the
prefix removed. If this matches a parameter for which the type has flag
fs_param_neg_with_no set, then a match will be made and the value will be
set to false/0/NULL.
fs_param_neg_with_no set, then a match will be made and result->negated
will be set to true.
If the parameter is successfully matched and, optionally, parsed
correctly, 1 is returned. If the parameter isn't matched and
parser->ignore_unknown is set, then 0 is returned. Otherwise -EINVAL is
returned.
(*) bool fs_validate_description(const struct fs_parameter_description *desc);
This is validates the parameter description. It returns true if the
description is good and false if it is not.
If the parameter isn't matched, -ENOPARAM will be returned; if the
parameter is matched, but the value is erroneous, -EINVAL will be
returned; otherwise the parameter's option number will be returned.
(*) int fs_lookup_param(struct fs_context *fc,
struct fs_parameter *value,

1
Documentation/i2c/busses/i2c-i801
View File

@ -36,6 +36,7 @@ Supported adapters:
* Intel Cannon Lake (PCH)
* Intel Cedar Fork (PCH)
* Intel Ice Lake (PCH)
* Intel Comet Lake (PCH)
Datasheets: Publicly available at the Intel website
On Intel Patsburg and later chipsets, both the normal host SMBus controller

8
Documentation/lzo.txt
View File

@ -102,9 +102,11 @@ Byte sequences
dictionary which is empty, and that it will always be
invalid at this place.
17 : bitstream version. If the first byte is 17, the next byte
gives the bitstream version (version 1 only). If the first byte
is not 17, the bitstream version is 0.
17 : bitstream version. If the first byte is 17, and compressed
stream length is at least 5 bytes (length of shortest possible
versioned bitstream), the next byte gives the bitstream version
(version 1 only).
Otherwise, the bitstream version is 0.
18..21 : copy 0..3 literals
state = (byte - 17) = 0..3 [ copy <state> literals ]

4
Documentation/media/uapi/rc/rc-tables.rst
View File

@ -623,7 +623,7 @@ the remote via /dev/input/event devices.
- .. row 78
- ``KEY_SCREEN``
- ``KEY_ASPECT_RATIO``
- Select screen aspect ratio
@ -631,7 +631,7 @@ the remote via /dev/input/event devices.
- .. row 79
- ``KEY_ZOOM``
- ``KEY_FULL_SCREEN``
- Put device into zoom/full screen mode

126
Documentation/networking/bpf_flow_dissector.rst Normal file
View File

@ -0,0 +1,126 @@
.. SPDX-License-Identifier: GPL-2.0
==================
BPF Flow Dissector
==================
Overview
========
Flow dissector is a routine that parses metadata out of the packets. It's
used in the various places in the networking subsystem (RFS, flow hash, etc).
BPF flow dissector is an attempt to reimplement C-based flow dissector logic
in BPF to gain all the benefits of BPF verifier (namely, limits on the
number of instructions and tail calls).
API
===
BPF flow dissector programs operate on an ``__sk_buff``. However, only the
limited set of fields is allowed: ``data``, ``data_end`` and ``flow_keys``.
``flow_keys`` is ``struct bpf_flow_keys`` and contains flow dissector input
and output arguments.
The inputs are:
* ``nhoff`` - initial offset of the networking header
* ``thoff`` - initial offset of the transport header, initialized to nhoff
* ``n_proto`` - L3 protocol type, parsed out of L2 header
Flow dissector BPF program should fill out the rest of the ``struct
bpf_flow_keys`` fields. Input arguments ``nhoff/thoff/n_proto`` should be
also adjusted accordingly.
The return code of the BPF program is either BPF_OK to indicate successful
dissection, or BPF_DROP to indicate parsing error.
__sk_buff->data
===============
In the VLAN-less case, this is what the initial state of the BPF flow
dissector looks like::
+------+------+------------+-----------+
| DMAC | SMAC | ETHER_TYPE | L3_HEADER |
+------+------+------------+-----------+
^
|
+-- flow dissector starts here
.. code:: c
skb->data + flow_keys->nhoff point to the first byte of L3_HEADER
flow_keys->thoff = nhoff
flow_keys->n_proto = ETHER_TYPE
In case of VLAN, flow dissector can be called with the two different states.
Pre-VLAN parsing::
+------+------+------+-----+-----------+-----------+
| DMAC | SMAC | TPID | TCI |ETHER_TYPE | L3_HEADER |
+------+------+------+-----+-----------+-----------+
^
|
+-- flow dissector starts here
.. code:: c
skb->data + flow_keys->nhoff point the to first byte of TCI
flow_keys->thoff = nhoff
flow_keys->n_proto = TPID
Please note that TPID can be 802.1AD and, hence, BPF program would
have to parse VLAN information twice for double tagged packets.
Post-VLAN parsing::
+------+------+------+-----+-----------+-----------+
| DMAC | SMAC | TPID | TCI |ETHER_TYPE | L3_HEADER |
+------+------+------+-----+-----------+-----------+
^
|
+-- flow dissector starts here
.. code:: c
skb->data + flow_keys->nhoff point the to first byte of L3_HEADER
flow_keys->thoff = nhoff
flow_keys->n_proto = ETHER_TYPE
In this case VLAN information has been processed before the flow dissector
and BPF flow dissector is not required to handle it.
The takeaway here is as follows: BPF flow dissector program can be called with
the optional VLAN header and should gracefully handle both cases: when single
or double VLAN is present and when it is not present. The same program
can be called for both cases and would have to be written carefully to
handle both cases.
Reference Implementation
========================
See ``tools/testing/selftests/bpf/progs/bpf_flow.c`` for the reference
implementation and ``tools/testing/selftests/bpf/flow_dissector_load.[hc]``
for the loader. bpftool can be used to load BPF flow dissector program as well.
The reference implementation is organized as follows:
* ``jmp_table`` map that contains sub-programs for each supported L3 protocol
* ``_dissect`` routine - entry point; it does input ``n_proto`` parsing and
does ``bpf_tail_call`` to the appropriate L3 handler
Since BPF at this point doesn't support looping (or any jumping back),
jmp_table is used instead to handle multiple levels of encapsulation (and
IPv6 options).
Current Limitations
===================
BPF flow dissector doesn't support exporting all the metadata that in-kernel
C-based implementation can export. Notable example is single VLAN (802.1Q)
and double VLAN (802.1AD) tags. Please refer to the ``struct bpf_flow_keys``
for a set of information that's currently can be exported from the BPF context.

2
Documentation/networking/decnet.txt
View File

@ -22,8 +22,6 @@ you'll need the following options as well...
CONFIG_DECNET_ROUTER (to be able to add/delete routes)
CONFIG_NETFILTER (will be required for the DECnet routing daemon)
CONFIG_DECNET_ROUTE_FWMARK is optional
Don't turn on SIOCGIFCONF support for DECnet unless you are really sure
that you need it, in general you won't and it can cause ifconfig to
malfunction.

1
Documentation/networking/index.rst
View File

@ -9,6 +9,7 @@ Contents:
netdev-FAQ
af_xdp
batman-adv
bpf_flow_dissector
can
can_ucan_protocol
device_drivers/freescale/dpaa2/index

3
Documentation/networking/ip-sysctl.txt
View File

@ -422,6 +422,7 @@ tcp_min_rtt_wlen - INTEGER
minimum RTT when it is moved to a longer path (e.g., due to traffic
engineering). A longer window makes the filter more resistant to RTT
inflations such as transient congestion. The unit is seconds.
Possible values: 0 - 86400 (1 day)
Default: 300
tcp_moderate_rcvbuf - BOOLEAN
@ -1336,6 +1337,7 @@ tag - INTEGER
Default value is 0.
xfrm4_gc_thresh - INTEGER
(Obsolete since linux-4.14)
The threshold at which we will start garbage collecting for IPv4
destination cache entries. At twice this value the system will
refuse new allocations.
@ -1919,6 +1921,7 @@ echo_ignore_all - BOOLEAN
Default: 0
xfrm6_gc_thresh - INTEGER
(Obsolete since linux-4.14)
The threshold at which we will start garbage collecting for IPv6
destination cache entries. At twice this value the system will
refuse new allocations.

2
Documentation/networking/msg_zerocopy.rst
View File

@ -50,7 +50,7 @@ the excellent reporting over at LWN.net or read the original code.
patchset
[PATCH net-next v4 0/9] socket sendmsg MSG_ZEROCOPY
http://lkml.kernel.org/r/20170803202945.70750-1-willemdebruijn.kernel@gmail.com
https://lkml.kernel.org/netdev/20170803202945.70750-1-willemdebruijn.kernel@gmail.com
Interface

13
Documentation/networking/netdev-FAQ.rst
View File

@ -131,6 +131,19 @@ it to the maintainer to figure out what is the most recent and current
version that should be applied. If there is any doubt, the maintainer
will reply and ask what should be done.
Q: I made changes to only a few patches in a patch series should I resend only those changed?
---------------------------------------------------------------------------------------------
A: No, please resend the entire patch series and make sure you do number your
patches such that it is clear this is the latest and greatest set of patches
that can be applied.
Q: I submitted multiple versions of a patch series and it looks like a version other than the last one has been accepted, what should I do?
-------------------------------------------------------------------------------------------------------------------------------------------
A: There is no revert possible, once it is pushed out, it stays like that.
Please send incremental versions on top of what has been merged in order to fix
the patches the way they would look like if your latest patch series was to be
merged.
Q: How can I tell what patches are queued up for backporting to the various stable releases?
--------------------------------------------------------------------------------------------
A: Normally Greg Kroah-Hartman collects stable commits himself, but for

8
Documentation/networking/nf_flowtable.txt
View File

@ -44,10 +44,10 @@ including the Netfilter hooks and the flowtable fastpath bypass.
/ \ / \ |Routing | / \
--> ingress ---> prerouting ---> |decision| | postrouting |--> neigh_xmit
\_________/ \__________/ ---------- \____________/ ^
| ^ | | ^ |
flowtable | | ____\/___ | |
| | | / \ | |
__\/___ | --------->| forward |------------ |
| ^ | ^ |
flowtable | ____\/___ | |
| | / \ | |
__\/___ | | forward |------------ |
|-----| | \_________/ |
|-----| | 'flow offload' rule |
|-----| | adds entry to |

16
Documentation/networking/rxrpc.txt
View File

@ -1009,16 +1009,18 @@ The kernel interface functions are as follows:
(*) Check call still alive.
u32 rxrpc_kernel_check_life(struct socket *sock,
struct rxrpc_call *call);
bool rxrpc_kernel_check_life(struct socket *sock,
struct rxrpc_call *call,
u32 *_life);
void rxrpc_kernel_probe_life(struct socket *sock,
struct rxrpc_call *call);
The first function returns a number that is updated when ACKs are received
from the peer (notably including PING RESPONSE ACKs which we can elicit by
sending PING ACKs to see if the call still exists on the server). The
caller should compare the numbers of two calls to see if the call is still
alive after waiting for a suitable interval.
The first function passes back in *_life a number that is updated when
ACKs are received from the peer (notably including PING RESPONSE ACKs
which we can elicit by sending PING ACKs to see if the call still exists
on the server). The caller should compare the numbers of two calls to see
if the call is still alive after waiting for a suitable interval. It also
returns true as long as the call hasn't yet reached the completed state.
This allows the caller to work out if the server is still contactable and
if the call is still alive on the server while waiting for the server to

12
Documentation/networking/snmp_counter.rst
View File

@ -413,7 +413,7 @@ algorithm.
.. _F-RTO: https://tools.ietf.org/html/rfc5682
TCP Fast Path
============
=============
When kernel receives a TCP packet, it has two paths to handler the
packet, one is fast path, another is slow path. The comment in kernel
code provides a good explanation of them, I pasted them below::
@ -681,6 +681,7 @@ The TCP stack receives an out of order duplicate packet, so it sends a
DSACK to the sender.
* TcpExtTCPDSACKRecv
The TCP stack receives a DSACK, which indicates an acknowledged
duplicate packet is received.
@ -690,7 +691,7 @@ The TCP stack receives a DSACK, which indicate an out of order
duplicate packet is received.
invalid SACK and DSACK
====================
======================
When a SACK (or DSACK) block is invalid, a corresponding counter would
be updated. The validation method is base on the start/end sequence
number of the SACK block. For more details, please refer the comment
@ -704,11 +705,13 @@ explaination:
.. _Add counters for discarded SACK blocks: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=18f02545a9a16c9a89778b91a162ad16d510bb32
* TcpExtTCPSACKDiscard
This counter indicates how many SACK blocks are invalid. If the invalid
SACK block is caused by ACK recording, the TCP stack will only ignore
it and won't update this counter.
* TcpExtTCPDSACKIgnoredOld and TcpExtTCPDSACKIgnoredNoUndo
When a DSACK block is invalid, one of these two counters would be
updated. Which counter will be updated depends on the undo_marker flag
of the TCP socket. If the undo_marker is not set, the TCP stack isn't
@ -719,7 +722,7 @@ will be updated. If the undo_marker is set, TcpExtTCPDSACKIgnoredOld
will be updated. As implied in its name, it might be an old packet.
SACK shift
=========
==========
The linux networking stack stores data in sk_buff struct (skb for
short). If a SACK block acrosses multiple skb, the TCP stack will try
to re-arrange data in these skb. E.g. if a SACK block acknowledges seq
@ -730,12 +733,15 @@ seq 14 to 20. All data in skb2 will be moved to skb1, and skb2 will be
discard, this operation is 'merge'.
* TcpExtTCPSackShifted
A skb is shifted
* TcpExtTCPSackMerged
A skb is merged
* TcpExtTCPSackShiftFallback
A skb should be shifted or merged, but the TCP stack doesn't do it for
some reasons.

16
Documentation/sysctl/vm.txt
View File

@ -866,14 +866,14 @@ The intent is that compaction has less work to do in the future and to
increase the success rate of future high-order allocations such as SLUB
allocations, THP and hugetlbfs pages.
To make it sensible with respect to the watermark_scale_factor parameter,
the unit is in fractions of 10,000. The default value of 15,000 means
that up to 150% of the high watermark will be reclaimed in the event of
a pageblock being mixed due to fragmentation. The level of reclaim is
determined by the number of fragmentation events that occurred in the
recent past. If this value is smaller than a pageblock then a pageblocks
worth of pages will be reclaimed (e.g. 2MB on 64-bit x86). A boost factor
of 0 will disable the feature.
To make it sensible with respect to the watermark_scale_factor
parameter, the unit is in fractions of 10,000. The default value of
15,000 on !DISCONTIGMEM configurations means that up to 150% of the high
watermark will be reclaimed in the event of a pageblock being mixed due
to fragmentation. The level of reclaim is determined by the number of
fragmentation events that occurred in the recent past. If this value is
smaller than a pageblock then a pageblocks worth of pages will be reclaimed
(e.g. 2MB on 64-bit x86). A boost factor of 0 will disable the feature.
=============================================================

88
Documentation/virtual/kvm/api.txt
View File

@ -5,25 +5,32 @@ The Definitive KVM (Kernel-based Virtual Machine) API Documentation
----------------------
The kvm API is a set of ioctls that are issued to control various aspects
of a virtual machine. The ioctls belong to three classes
of a virtual machine. The ioctls belong to three classes:
- System ioctls: These query and set global attributes which affect the
whole kvm subsystem. In addition a system ioctl is used to create
virtual machines
virtual machines.
- VM ioctls: These query and set attributes that affect an entire virtual
machine, for example memory layout. In addition a VM ioctl is used to
create virtual cpus (vcpus).
create virtual cpus (vcpus) and devices.
Only run VM ioctls from the same process (address space) that was used
to create the VM.
VM ioctls must be issued from the same process (address space) that was
used to create the VM.
- vcpu ioctls: These query and set attributes that control the operation
of a single virtual cpu.
Only run vcpu ioctls from the same thread that was used to create the
vcpu.
vcpu ioctls should be issued from the same thread that was used to create
the vcpu, except for asynchronous vcpu ioctl that are marked as such in
the documentation. Otherwise, the first ioctl after switching threads
could see a performance impact.
- device ioctls: These query and set attributes that control the operation
of a single device.
device ioctls must be issued from the same process (address space) that
was used to create the VM.
2. File descriptors
-------------------
@ -32,17 +39,34 @@ The kvm API is centered around file descriptors. An initial
open("/dev/kvm") obtains a handle to the kvm subsystem; this handle
can be used to issue system ioctls. A KVM_CREATE_VM ioctl on this
handle will create a VM file descriptor which can be used to issue VM
ioctls. A KVM_CREATE_VCPU ioctl on a VM fd will create a virtual cpu
and return a file descriptor pointing to it. Finally, ioctls on a vcpu
fd can be used to control the vcpu, including the important task of
actually running guest code.
ioctls. A KVM_CREATE_VCPU or KVM_CREATE_DEVICE ioctl on a VM fd will
create a virtual cpu or device and return a file descriptor pointing to
the new resource. Finally, ioctls on a vcpu or device fd can be used
to control the vcpu or device. For vcpus, this includes the important
task of actually running guest code.
In general file descriptors can be migrated among processes by means
of fork() and the SCM_RIGHTS facility of unix domain socket. These
kinds of tricks are explicitly not supported by kvm. While they will
not cause harm to the host, their actual behavior is not guaranteed by
the API. The only supported use is one virtual machine per process,
and one vcpu per thread.
the API. See "General description" for details on the ioctl usage
model that is supported by KVM.
It is important to note that althought VM ioctls may only be issued from
the process that created the VM, a VM's lifecycle is associated with its
file descriptor, not its creator (process). In other words, the VM and
its resources, *including the associated address space*, are not freed
until the last reference to the VM's file descriptor has been released.
For example, if fork() is issued after ioctl(KVM_CREATE_VM), the VM will
not be freed until both the parent (original) process and its child have
put their references to the VM's file descriptor.
Because a VM's resources are not freed until the last reference to its
file descriptor is released, creating additional references to a VM via
via fork(), dup(), etc... without careful consideration is strongly
discouraged and may have unwanted side effects, e.g. memory allocated
by and on behalf of the VM's process may not be freed/unaccounted when
the VM is shut down.
It is important to note that althought VM ioctls may only be issued from
@ -297,7 +321,7 @@ cpu's hardware control block.
4.8 KVM_GET_DIRTY_LOG (vm ioctl)
Capability: basic
Architectures: x86
Architectures: all
Type: vm ioctl
Parameters: struct kvm_dirty_log (in/out)
Returns: 0 on success, -1 on error
@ -515,11 +539,15 @@ c) KVM_INTERRUPT_SET_LEVEL
Note that any value for 'irq' other than the ones stated above is invalid
and incurs unexpected behavior.
This is an asynchronous vcpu ioctl and can be invoked from any thread.
MIPS:
Queues an external interrupt to be injected into the virtual CPU. A negative
interrupt number dequeues the interrupt.
This is an asynchronous vcpu ioctl and can be invoked from any thread.
4.17 KVM_DEBUG_GUEST
@ -1086,14 +1114,12 @@ struct kvm_userspace_memory_region {
#define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0)
#define KVM_MEM_READONLY (1UL << 1)
This ioctl allows the user to create or modify a guest physical memory
slot. When changing an existing slot, it may be moved in the guest
physical memory space, or its flags may be modified. It may not be
resized. Slots may not overlap in guest physical address space.
Bits 0-15 of "slot" specifies the slot id and this value should be
less than the maximum number of user memory slots supported per VM.
The maximum allowed slots can be queried using KVM_CAP_NR_MEMSLOTS,
if this capability is supported by the architecture.
This ioctl allows the user to create, modify or delete a guest physical
memory slot. Bits 0-15 of "slot" specify the slot id and this value
should be less than the maximum number of user memory slots supported per
VM. The maximum allowed slots can be queried using KVM_CAP_NR_MEMSLOTS,
if this capability is supported by the architecture. Slots may not
overlap in guest physical address space.
If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 of "slot"
specifies the address space which is being modified. They must be
@ -1102,6 +1128,10 @@ KVM_CAP_MULTI_ADDRESS_SPACE capability. Slots in separate address spaces
are unrelated; the restriction on overlapping slots only applies within
each address space.
Deleting a slot is done by passing zero for memory_size. When changing
an existing slot, it may be moved in the guest physical memory space,
or its flags may be modified, but it may not be resized.
Memory for the region is taken starting at the address denoted by the
field userspace_addr, which must point at user addressable memory for
the entire memory slot size. Any object may back this memory, including
@ -2493,7 +2523,7 @@ KVM_S390_MCHK (vm, vcpu) - machine check interrupt; cr 14 bits in parm,
machine checks needing further payload are not
supported by this ioctl)
Note that the vcpu ioctl is asynchronous to vcpu execution.
This is an asynchronous vcpu ioctl and can be invoked from any thread.
4.78 KVM_PPC_GET_HTAB_FD
@ -3042,8 +3072,7 @@ KVM_S390_INT_EMERGENCY - sigp emergency; parameters in .emerg
KVM_S390_INT_EXTERNAL_CALL - sigp external call; parameters in .extcall
KVM_S390_MCHK - machine check interrupt; parameters in .mchk
Note that the vcpu ioctl is asynchronous to vcpu execution.
This is an asynchronous vcpu ioctl and can be invoked from any thread.
4.94 KVM_S390_GET_IRQ_STATE
@ -3781,7 +3810,7 @@ to I/O ports.
4.117 KVM_CLEAR_DIRTY_LOG (vm ioctl)
Capability: KVM_CAP_MANUAL_DIRTY_LOG_PROTECT
Architectures: x86
Architectures: x86, arm, arm64, mips
Type: vm ioctl
Parameters: struct kvm_dirty_log (in)
Returns: 0 on success, -1 on error
@ -3801,8 +3830,9 @@ The ioctl clears the dirty status of pages in a memory slot, according to
the bitmap that is passed in struct kvm_clear_dirty_log's dirty_bitmap
field. Bit 0 of the bitmap corresponds to page "first_page" in the
memory slot, and num_pages is the size in bits of the input bitmap.
Both first_page and num_pages must be a multiple of 64. For each bit
that is set in the input bitmap, the corresponding page is marked "clean"
first_page must be a multiple of 64; num_pages must also be a multiple of
64 unless first_page + num_pages is the size of the memory slot. For each
bit that is set in the input bitmap, the corresponding page is marked "clean"
in KVM's dirty bitmap, and dirty tracking is re-enabled for that page
(for example via write-protection, or by clearing the dirty bit in
a page table entry).
@ -4770,7 +4800,7 @@ and injected exceptions.
7.18 KVM_CAP_MANUAL_DIRTY_LOG_PROTECT
Architectures: all
Architectures: x86, arm, arm64, mips
Parameters: args[0] whether feature should be enabled or not
With this capability enabled, KVM_GET_DIRTY_LOG will not automatically

11
Documentation/virtual/kvm/mmu.txt
View File

@ -142,7 +142,7 @@ Shadow pages contain the following information:
If clear, this page corresponds to a guest page table denoted by the gfn
field.
role.quadrant:
When role.cr4_pae=0, the guest uses 32-bit gptes while the host uses 64-bit
When role.gpte_is_8_bytes=0, the guest uses 32-bit gptes while the host uses 64-bit
sptes. That means a guest page table contains more ptes than the host,
so multiple shadow pages are needed to shadow one guest page.
For first-level shadow pages, role.quadrant can be 0 or 1 and denotes the
@ -158,9 +158,9 @@ Shadow pages contain the following information:
The page is invalid and should not be used. It is a root page that is
currently pinned (by a cpu hardware register pointing to it); once it is
unpinned it will be destroyed.
role.cr4_pae:
Contains the value of cr4.pae for which the page is valid (e.g. whether
32-bit or 64-bit gptes are in use).
role.gpte_is_8_bytes:
Reflects the size of the guest PTE for which the page is valid, i.e. '1'
if 64-bit gptes are in use, '0' if 32-bit gptes are in use.
role.nxe:
Contains the value of efer.nxe for which the page is valid.
role.cr0_wp:
@ -173,6 +173,9 @@ Shadow pages contain the following information:
Contains the value of cr4.smap && !cr0.wp for which the page is valid
(pages for which this is true are different from other pages; see the
treatment of cr0.wp=0 below).
role.ept_sp:
This is a virtual flag to denote a shadowed nested EPT page. ept_sp
is true if "cr0_wp && smap_andnot_wp", an otherwise invalid combination.
role.smm:
Is 1 if the page is valid in system management mode. This field
determines which of the kvm_memslots array was used to build this

51
MAINTAINERS
View File

@ -1893,14 +1893,15 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
ARM/NUVOTON NPCM ARCHITECTURE
M: Avi Fishman <avifishman70@gmail.com>
M: Tomer Maimon <tmaimon77@gmail.com>
M: Tali Perry <tali.perry1@gmail.com>
R: Patrick Venture <venture@google.com>
R: Nancy Yuen <yuenn@google.com>
R: Brendan Higgins <brendanhiggins@google.com>
R: Benjamin Fair <benjaminfair@google.com>
L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
S: Supported
F: arch/arm/mach-npcm/
F: arch/arm/boot/dts/nuvoton-npcm*
F: include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
F: include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
F: drivers/*/*npcm*
F: Documentation/devicetree/bindings/*/*npcm*
F: Documentation/devicetree/bindings/*/*/*npcm*
@ -2356,7 +2357,7 @@ F: arch/arm/mm/cache-uniphier.c
F: arch/arm64/boot/dts/socionext/uniphier*
F: drivers/bus/uniphier-system-bus.c
F: drivers/clk/uniphier/
F: drivers/dmaengine/uniphier-mdmac.c
F: drivers/dma/uniphier-mdmac.c
F: drivers/gpio/gpio-uniphier.c
F: drivers/i2c/busses/i2c-uniphier*
F: drivers/irqchip/irq-uniphier-aidet.c
@ -3120,6 +3121,7 @@ F: drivers/cpufreq/bmips-cpufreq.c
BROADCOM BMIPS MIPS ARCHITECTURE
M: Kevin Cernekee <cernekee@gmail.com>
M: Florian Fainelli <f.fainelli@gmail.com>
L: bcm-kernel-feedback-list@broadcom.com
L: linux-mips@vger.kernel.org
T: git git://github.com/broadcom/stblinux.git
S: Maintained
@ -3799,6 +3801,7 @@ F: drivers/clk/clk-lochnagar.c
F: drivers/mfd/lochnagar-i2c.c
F: drivers/pinctrl/cirrus/pinctrl-lochnagar.c
F: drivers/regulator/lochnagar-regulator.c
F: sound/soc/codecs/lochnagar-sc.c
F: include/dt-bindings/clk/lochnagar.h
F: include/dt-bindings/pinctrl/lochnagar.h
F: include/linux/mfd/lochnagar*
@ -3806,6 +3809,7 @@ F: Documentation/devicetree/bindings/mfd/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/clock/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/pinctrl/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/regulator/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt
CISCO FCOE HBA DRIVER
M: Satish Kharat <satishkh@cisco.com>
@ -4129,7 +4133,7 @@ F: drivers/cpuidle/*
F: include/linux/cpuidle.h
CRAMFS FILESYSTEM
M: Nicolas Pitre <nico@linaro.org>
M: Nicolas Pitre <nico@fluxnic.net>
S: Maintained
F: Documentation/filesystems/cramfs.txt
F: fs/cramfs/
@ -5833,7 +5837,7 @@ L: netdev@vger.kernel.org
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-mdio
F: Documentation/devicetree/bindings/net/mdio*
F: Documentation/networking/phy.txt
F: Documentation/networking/phy.rst
F: drivers/net/phy/
F: drivers/of/of_mdio.c
F: drivers/of/of_net.c
@ -6408,7 +6412,6 @@ L: linux-kernel@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core
S: Maintained
F: kernel/futex.c
F: kernel/futex_compat.c
F: include/asm-generic/futex.h
F: include/linux/futex.h
F: include/uapi/linux/futex.h
@ -6461,7 +6464,7 @@ S: Maintained
F: drivers/media/radio/radio-gemtek*
GENERIC GPIO I2C DRIVER
M: Haavard Skinnemoen <hskinnemoen@gmail.com>
M: Wolfram Sang <wsa+renesas@sang-engineering.com>
S: Supported
F: drivers/i2c/busses/i2c-gpio.c
F: include/linux/platform_data/i2c-gpio.h
@ -7333,7 +7336,6 @@ F: Documentation/devicetree/bindings/i3c/
F: Documentation/driver-api/i3c
F: drivers/i3c/
F: include/linux/i3c/
F: include/dt-bindings/i3c/
I3C DRIVER FOR SYNOPSYS DESIGNWARE
M: Vitor Soares <vitor.soares@synopsys.com>
@ -7516,7 +7518,7 @@ F: include/net/mac802154.h
F: include/net/af_ieee802154.h
F: include/net/cfg802154.h
F: include/net/ieee802154_netdev.h
F: Documentation/networking/ieee802154.txt
F: Documentation/networking/ieee802154.rst
IFE PROTOCOL
M: Yotam Gigi <yotam.gi@gmail.com>
@ -8096,6 +8098,16 @@ F: include/linux/iommu.h
F: include/linux/of_iommu.h
F: include/linux/iova.h
IO_URING
M: Jens Axboe <axboe@kernel.dk>
L: linux-block@vger.kernel.org
L: linux-fsdevel@vger.kernel.org
T: git git://git.kernel.dk/linux-block
T: git git://git.kernel.dk/liburing
S: Maintained
F: fs/io_uring.c
F: include/uapi/linux/io_uring.h
IP MASQUERADING
M: Juanjo Ciarlante <jjciarla@raiz.uncu.edu.ar>
S: Maintained
@ -8698,6 +8710,7 @@ F: scripts/leaking_addresses.pl
LED SUBSYSTEM
M: Jacek Anaszewski <jacek.anaszewski@gmail.com>
M: Pavel Machek <pavel@ucw.cz>
R: Dan Murphy <dmurphy@ti.com>
L: linux-leds@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git
S: Maintained
@ -10135,7 +10148,7 @@ F: drivers/spi/spi-at91-usart.c
F: Documentation/devicetree/bindings/mfd/atmel-usart.txt
MICROCHIP KSZ SERIES ETHERNET SWITCH DRIVER
M: Woojung Huh <Woojung.Huh@microchip.com>
M: Woojung Huh <woojung.huh@microchip.com>
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
L: netdev@vger.kernel.org
S: Maintained
@ -12165,6 +12178,7 @@ F: arch/*/kernel/*/*/perf_event*.c
F: arch/*/include/asm/perf_event.h
F: arch/*/kernel/perf_callchain.c
F: arch/*/events/*
F: arch/*/events/*/*
F: tools/perf/
PERSONALITY HANDLING
@ -13972,7 +13986,7 @@ F: drivers/media/rc/serial_ir.c
SFC NETWORK DRIVER
M: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
M: Edward Cree <ecree@solarflare.com>
M: Bert Kenward <bkenward@solarflare.com>
M: Martin Habets <mhabets@solarflare.com>
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/sfc/
@ -16498,7 +16512,7 @@ F: drivers/char/virtio_console.c
F: include/linux/virtio_console.h
F: include/uapi/linux/virtio_console.h
VIRTIO CORE, NET AND BLOCK DRIVERS
VIRTIO CORE AND NET DRIVERS
M: "Michael S. Tsirkin" <mst@redhat.com>
M: Jason Wang <jasowang@redhat.com>
L: virtualization@lists.linux-foundation.org
@ -16513,6 +16527,19 @@ F: include/uapi/linux/virtio_*.h
F: drivers/crypto/virtio/
F: mm/balloon_compaction.c
VIRTIO BLOCK AND SCSI DRIVERS
M: "Michael S. Tsirkin" <mst@redhat.com>
M: Jason Wang <jasowang@redhat.com>
R: Paolo Bonzini <pbonzini@redhat.com>
R: Stefan Hajnoczi <stefanha@redhat.com>
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/block/virtio_blk.c
F: drivers/scsi/virtio_scsi.c
F: include/uapi/linux/virtio_blk.h
F: include/uapi/linux/virtio_scsi.h
F: drivers/vhost/scsi.c
VIRTIO CRYPTO DRIVER
M: Gonglei <arei.gonglei@huawei.com>
L: virtualization@lists.linux-foundation.org

51
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 1
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION =
NAME = Shy Crocodile
# *DOCUMENTATION*
@ -31,26 +31,12 @@ _all:
# descending is started. They are now explicitly listed as the
# prepare rule.
# Ugly workaround for Debian make-kpkg:
# make-kpkg directly includes the top Makefile of Linux kernel. In such a case,
# skip sub-make to support debian_* targets in ruleset/kernel_version.mk, but
# displays warning to discourage such abusage.
ifneq ($(word 2, $(MAKEFILE_LIST)),)
$(warning Do not include top Makefile of Linux Kernel)
sub-make-done := 1
MAKEFLAGS += -rR
endif
ifneq ($(sub-make-done),1)
ifneq ($(sub_make_done),1)
# Do not use make's built-in rules and variables
# (this increases performance and avoids hard-to-debug behaviour)
MAKEFLAGS += -rR
# 'MAKEFLAGS += -rR' does not become immediately effective for old
# GNU Make versions. Cancel implicit rules for this Makefile.
$(lastword $(MAKEFILE_LIST)): ;
# Avoid funny character set dependencies
unexport LC_ALL
LC_COLLATE=C
@ -153,6 +139,7 @@ $(if $(KBUILD_OUTPUT),, \
# 'sub-make' below.
MAKEFLAGS += --include-dir=$(CURDIR)
need-sub-make := 1
else
# Do not print "Entering directory ..." at all for in-tree build.
@ -160,6 +147,18 @@ MAKEFLAGS += --no-print-directory
endif # ifneq ($(KBUILD_OUTPUT),)
ifneq ($(filter 3.%,$(MAKE_VERSION)),)
# 'MAKEFLAGS += -rR' does not immediately become effective for GNU Make 3.x
# We need to invoke sub-make to avoid implicit rules in the top Makefile.
need-sub-make := 1
# Cancel implicit rules for this Makefile.
$(lastword $(MAKEFILE_LIST)): ;
endif
export sub_make_done := 1
ifeq ($(need-sub-make),1)
PHONY += $(MAKECMDGOALS) sub-make
$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
@ -167,12 +166,15 @@ $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
# Invoke a second make in the output directory, passing relevant variables
sub-make:
$(Q)$(MAKE) sub-make-done=1 \
$(Q)$(MAKE) \
$(if $(KBUILD_OUTPUT),-C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR)) \
-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
else # sub-make-done
endif # need-sub-make
endif # sub_make_done
# We process the rest of the Makefile if this is the final invocation of make
ifeq ($(need-sub-make),)
# Do not print "Entering directory ...",
# but we want to display it when entering to the output directory
@ -497,7 +499,8 @@ outputmakefile:
ifneq ($(KBUILD_SRC),)
$(Q)ln -fsn $(srctree) source
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
$(Q){ echo "# this is build directory, ignore it"; echo "*"; } > .gitignore
$(Q)test -e .gitignore || \
{ echo "# this is build directory, ignore it"; echo "*"; } > .gitignore
endif
ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),)
@ -675,9 +678,10 @@ KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,)
KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation)
KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
KBUILD_CFLAGS += -Os
else
KBUILD_CFLAGS += -O2
endif
@ -716,7 +720,6 @@ ifdef CONFIG_CC_IS_CLANG
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
# Quiet clang warning: comparison of unsigned expression < 0 is always false
KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
@ -950,9 +953,11 @@ mod_sign_cmd = true
endif
export mod_sign_cmd
HOST_LIBELF_LIBS = $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf)
ifdef CONFIG_STACK_VALIDATION
has_libelf := $(call try-run,\
echo "int main() {}" | $(HOSTCC) -xc -o /dev/null -lelf -,1,0)
echo "int main() {}" | $(HOSTCC) -xc -o /dev/null $(HOST_LIBELF_LIBS) -,1,0)
ifeq ($(has_libelf),1)
objtool_target := tools/objtool FORCE
else
@ -1757,7 +1762,7 @@ existing-targets := $(wildcard $(sort $(targets)))
endif # ifeq ($(config-targets),1)
endif # ifeq ($(mixed-targets),1)
endif # sub-make-done
endif # need-sub-make
PHONY += FORCE
FORCE:

1
arch/alpha/include/asm/Kbuild
View File

@ -6,6 +6,7 @@ generic-y += exec.h
generic-y += export.h
generic-y += fb.h
generic-y += irq_work.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
generic-y += preempt.h

2
arch/alpha/include/uapi/asm/kvm_para.h
View File

@ -1,2 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#include <asm-generic/kvm_para.h>

4
arch/alpha/kernel/syscalls/syscall.tbl
View File

@ -463,3 +463,7 @@
532 common getppid sys_getppid
# all other architectures have common numbers for new syscall, alpha
# is the exception.
534 common pidfd_send_signal sys_pidfd_send_signal
535 common io_uring_setup sys_io_uring_setup
536 common io_uring_enter sys_io_uring_enter
537 common io_uring_register sys_io_uring_register

21
arch/arc/Kconfig
View File

@ -144,11 +144,11 @@ config ARC_CPU_770
Support for ARC770 core introduced with Rel 4.10 (Summer 2011)
This core has a bunch of cool new features:
-MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4)
Shared Address Spaces (for sharing TLB entries in MMU)
Shared Address Spaces (for sharing TLB entries in MMU)
-Caches: New Prog Model, Region Flush
-Insns: endian swap, load-locked/store-conditional, time-stamp-ctr
endif #ISA_ARCOMPACT
endif #ISA_ARCOMPACT
config ARC_CPU_HS
bool "ARC-HS"
@ -198,7 +198,7 @@ config ARC_SMP_HALT_ON_RESET
at designated entry point. For other case, all jump to common
entry point and spin wait for Master's signal.
endif #SMP
endif #SMP
config ARC_MCIP
bool "ARConnect Multicore IP (MCIP) Support "
@ -249,7 +249,7 @@ config ARC_CACHE_VIPT_ALIASING
bool "Support VIPT Aliasing D$"
depends on ARC_HAS_DCACHE && ISA_ARCOMPACT
endif #ARC_CACHE
endif #ARC_CACHE
config ARC_HAS_ICCM
bool "Use ICCM"
@ -370,7 +370,7 @@ config ARC_FPU_SAVE_RESTORE
based on actual usage of FPU by a task. Thus our implemn does
this for all tasks in system.
endif #ISA_ARCOMPACT
endif #ISA_ARCOMPACT
config ARC_CANT_LLSC
def_bool n
@ -386,6 +386,15 @@ config ARC_HAS_SWAPE
if ISA_ARCV2
config ARC_USE_UNALIGNED_MEM_ACCESS
bool "Enable unaligned access in HW"
default y
select HAVE_EFFICIENT_UNALIGNED_ACCESS
help
The ARC HS architecture supports unaligned memory access
which is disabled by default. Enable unaligned access in
hardware and use software to use it
config ARC_HAS_LL64
bool "Insn: 64bit LDD/STD"
help
@ -414,7 +423,7 @@ config ARC_IRQ_NO_AUTOSAVE
This is programmable and can be optionally disabled in which case
software INTERRUPT_PROLOGUE/EPILGUE do the needed work
endif # ISA_ARCV2
endif # ISA_ARCV2
endmenu # "ARC CPU Configuration"

6
arch/arc/Makefile
View File

@ -28,6 +28,12 @@ cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
ifdef CONFIG_ISA_ARCV2
ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
cflags-y += -munaligned-access
else
cflags-y += -mno-unaligned-access
endif
ifndef CONFIG_ARC_HAS_LL64
cflags-y += -mno-ll64
endif

58
arch/arc/boot/dts/abilis_tb100.dtsi
View File

@ -38,7 +38,7 @@
clock-div = <6>;
};
iomux: iomux@FF10601c {
iomux: iomux@ff10601c {
/* Port 1 */
pctl_tsin_s0: pctl-tsin-s0 { /* Serial TS-in 0 */
abilis,function = "mis0";
@ -162,182 +162,182 @@
};
};
gpioa: gpio@FF140000 {
gpioa: gpio@ff140000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF140000 0x1000>;
reg = <0xff140000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioa";
};
gpiob: gpio@FF141000 {
gpiob: gpio@ff141000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF141000 0x1000>;
reg = <0xff141000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiob";
};
gpioc: gpio@FF142000 {
gpioc: gpio@ff142000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF142000 0x1000>;
reg = <0xff142000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioc";
};
gpiod: gpio@FF143000 {
gpiod: gpio@ff143000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF143000 0x1000>;
reg = <0xff143000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiod";
};
gpioe: gpio@FF144000 {
gpioe: gpio@ff144000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF144000 0x1000>;
reg = <0xff144000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioe";
};
gpiof: gpio@FF145000 {
gpiof: gpio@ff145000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF145000 0x1000>;
reg = <0xff145000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiof";
};
gpiog: gpio@FF146000 {
gpiog: gpio@ff146000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF146000 0x1000>;
reg = <0xff146000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiog";
};
gpioh: gpio@FF147000 {
gpioh: gpio@ff147000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF147000 0x1000>;
reg = <0xff147000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioh";
};
gpioi: gpio@FF148000 {
gpioi: gpio@ff148000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF148000 0x1000>;
reg = <0xff148000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <12>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioi";
};
gpioj: gpio@FF149000 {
gpioj: gpio@ff149000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF149000 0x1000>;
reg = <0xff149000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <32>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioj";
};
gpiok: gpio@FF14a000 {
gpiok: gpio@ff14a000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14A000 0x1000>;
reg = <0xff14a000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <22>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiok";
};
gpiol: gpio@FF14b000 {
gpiol: gpio@ff14b000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14B000 0x1000>;
reg = <0xff14b000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <4>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiol";
};
gpiom: gpio@FF14c000 {
gpiom: gpio@ff14c000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14C000 0x1000>;
reg = <0xff14c000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <4>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiom";
};
gpion: gpio@FF14d000 {
gpion: gpio@ff14d000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14D000 0x1000>;
reg = <0xff14d000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <5>;

14
arch/arc/boot/dts/abilis_tb100_dvk.dts
View File

@ -37,27 +37,27 @@
};
soc100 {
uart@FF100000 {
uart@ff100000 {
pinctrl-names = "default";
pinctrl-0 = <&pctl_uart0>;
};
ethernet@FE100000 {
ethernet@fe100000 {
phy-mode = "rgmii";
};
i2c0: i2c@FF120000 {
i2c0: i2c@ff120000 {
i2c-sda-hold-time-ns = <432>;
};
i2c1: i2c@FF121000 {
i2c1: i2c@ff121000 {
i2c-sda-hold-time-ns = <432>;
};
i2c2: i2c@FF122000 {
i2c2: i2c@ff122000 {
i2c-sda-hold-time-ns = <432>;
};
i2c3: i2c@FF123000 {
i2c3: i2c@ff123000 {
i2c-sda-hold-time-ns = <432>;
};
i2c4: i2c@FF124000 {
i2c4: i2c@ff124000 {
i2c-sda-hold-time-ns = <432>;
};

58
arch/arc/boot/dts/abilis_tb101.dtsi
View File

@ -38,7 +38,7 @@
clock-div = <6>;
};
iomux: iomux@FF10601c {
iomux: iomux@ff10601c {
/* Port 1 */
pctl_tsin_s0: pctl-tsin-s0 { /* Serial TS-in 0 */
abilis,function = "mis0";
@ -171,182 +171,182 @@
};
};
gpioa: gpio@FF140000 {
gpioa: gpio@ff140000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF140000 0x1000>;
reg = <0xff140000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioa";
};
gpiob: gpio@FF141000 {
gpiob: gpio@ff141000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF141000 0x1000>;
reg = <0xff141000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiob";
};
gpioc: gpio@FF142000 {
gpioc: gpio@ff142000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF142000 0x1000>;
reg = <0xff142000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioc";
};
gpiod: gpio@FF143000 {
gpiod: gpio@ff143000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF143000 0x1000>;
reg = <0xff143000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiod";
};
gpioe: gpio@FF144000 {
gpioe: gpio@ff144000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF144000 0x1000>;
reg = <0xff144000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioe";
};
gpiof: gpio@FF145000 {
gpiof: gpio@ff145000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF145000 0x1000>;
reg = <0xff145000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiof";
};
gpiog: gpio@FF146000 {
gpiog: gpio@ff146000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF146000 0x1000>;
reg = <0xff146000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <3>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiog";
};
gpioh: gpio@FF147000 {
gpioh: gpio@ff147000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF147000 0x1000>;
reg = <0xff147000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <2>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioh";
};
gpioi: gpio@FF148000 {
gpioi: gpio@ff148000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF148000 0x1000>;
reg = <0xff148000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <12>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioi";
};
gpioj: gpio@FF149000 {
gpioj: gpio@ff149000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF149000 0x1000>;
reg = <0xff149000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <32>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpioj";
};
gpiok: gpio@FF14a000 {
gpiok: gpio@ff14a000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14A000 0x1000>;
reg = <0xff14a000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <22>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiok";
};
gpiol: gpio@FF14b000 {
gpiol: gpio@ff14b000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14B000 0x1000>;
reg = <0xff14b000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <4>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiol";
};
gpiom: gpio@FF14c000 {
gpiom: gpio@ff14c000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14C000 0x1000>;
reg = <0xff14c000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <4>;
gpio-ranges = <&iomux 0 0 0>;
gpio-ranges-group-names = "gpiom";
};
gpion: gpio@FF14d000 {
gpion: gpio@ff14d000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 2>;
reg = <0xFF14D000 0x1000>;
reg = <0xff14d000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
abilis,ngpio = <5>;

14
arch/arc/boot/dts/abilis_tb101_dvk.dts
View File

@ -37,27 +37,27 @@
};
soc100 {
uart@FF100000 {
uart@ff100000 {
pinctrl-names = "default";
pinctrl-0 = <&pctl_uart0>;
};
ethernet@FE100000 {
ethernet@fe100000 {
phy-mode = "rgmii";
};
i2c0: i2c@FF120000 {
i2c0: i2c@ff120000 {
i2c-sda-hold-time-ns = <432>;
};
i2c1: i2c@FF121000 {
i2c1: i2c@ff121000 {
i2c-sda-hold-time-ns = <432>;
};
i2c2: i2c@FF122000 {
i2c2: i2c@ff122000 {
i2c-sda-hold-time-ns = <432>;
};
i2c3: i2c@FF123000 {
i2c3: i2c@ff123000 {
i2c-sda-hold-time-ns = <432>;
};
i2c4: i2c@FF124000 {
i2c4: i2c@ff124000 {
i2c-sda-hold-time-ns = <432>;
};

60
arch/arc/boot/dts/abilis_tb10x.dtsi
View File

@ -54,7 +54,7 @@
#size-cells = <1>;
device_type = "soc";
ranges = <0xfe000000 0xfe000000 0x02000000
0x000F0000 0x000F0000 0x00010000>;
0x000f0000 0x000f0000 0x00010000>;
compatible = "abilis,tb10x", "simple-bus";
pll0: oscillator {
@ -75,10 +75,10 @@
clock-output-names = "ahb_clk";
};
iomux: iomux@FF10601c {
iomux: iomux@ff10601c {
compatible = "abilis,tb10x-iomux";
#gpio-range-cells = <3>;
reg = <0xFF10601c 0x4>;
reg = <0xff10601c 0x4>;
};
intc: interrupt-controller {
@ -88,7 +88,7 @@
};
tb10x_ictl: pic@fe002000 {
compatible = "abilis,tb10x-ictl";
reg = <0xFE002000 0x20>;
reg = <0xfe002000 0x20>;
interrupt-controller;
#interrupt-cells = <2>;
interrupt-parent = <&intc>;
@ -96,27 +96,27 @@
20 21 22 23 24 25 26 27 28 29 30 31>;
};
uart@FF100000 {
uart@ff100000 {
compatible = "snps,dw-apb-uart";
reg = <0xFF100000 0x100>;
reg = <0xff100000 0x100>;
clock-frequency = <166666666>;
interrupts = <25 8>;
reg-shift = <2>;
reg-io-width = <4>;
interrupt-parent = <&tb10x_ictl>;
};
ethernet@FE100000 {
ethernet@fe100000 {
compatible = "snps,dwmac-3.70a","snps,dwmac";
reg = <0xFE100000 0x1058>;
reg = <0xfe100000 0x1058>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <6 8>;
interrupt-names = "macirq";
clocks = <&ahb_clk>;
clock-names = "stmmaceth";
};
dma@FE000000 {
dma@fe000000 {
compatible = "snps,dma-spear1340";
reg = <0xFE000000 0x400>;
reg = <0xfe000000 0x400>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <14 8>;
dma-channels = <6>;
@ -132,70 +132,70 @@
multi-block = <1 1 1 1 1 1>;
};
i2c0: i2c@FF120000 {
i2c0: i2c@ff120000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,designware-i2c";
reg = <0xFF120000 0x1000>;
reg = <0xff120000 0x1000>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <12 8>;
clocks = <&ahb_clk>;
};
i2c1: i2c@FF121000 {
i2c1: i2c@ff121000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,designware-i2c";
reg = <0xFF121000 0x1000>;
reg = <0xff121000 0x1000>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <12 8>;
clocks = <&ahb_clk>;
};
i2c2: i2c@FF122000 {
i2c2: i2c@ff122000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,designware-i2c";
reg = <0xFF122000 0x1000>;
reg = <0xff122000 0x1000>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <12 8>;
clocks = <&ahb_clk>;
};
i2c3: i2c@FF123000 {
i2c3: i2c@ff123000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,designware-i2c";
reg = <0xFF123000 0x1000>;
reg = <0xff123000 0x1000>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <12 8>;
clocks = <&ahb_clk>;
};
i2c4: i2c@FF124000 {
i2c4: i2c@ff124000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,designware-i2c";
reg = <0xFF124000 0x1000>;
reg = <0xff124000 0x1000>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <12 8>;
clocks = <&ahb_clk>;
};
spi0: spi@0xFE010000 {
spi0: spi@fe010000 {
#address-cells = <1>;
#size-cells = <0>;
cell-index = <0>;
compatible = "abilis,tb100-spi";
num-cs = <1>;
reg = <0xFE010000 0x20>;
reg = <0xfe010000 0x20>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <26 8>;
clocks = <&ahb_clk>;
};
spi1: spi@0xFE011000 {
spi1: spi@fe011000 {
#address-cells = <1>;
#size-cells = <0>;
cell-index = <1>;
compatible = "abilis,tb100-spi";
num-cs = <2>;
reg = <0xFE011000 0x20>;
reg = <0xfe011000 0x20>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <10 8>;
clocks = <&ahb_clk>;
@ -226,23 +226,23 @@
interrupts = <20 2>, <19 2>;
interrupt-names = "cmd_irq", "event_irq";
};
tb10x_mdsc0: tb10x-mdscr@FF300000 {
tb10x_mdsc0: tb10x-mdscr@ff300000 {
compatible = "abilis,tb100-mdscr";
reg = <0xFF300000 0x7000>;
reg = <0xff300000 0x7000>;
tb100-mdscr-manage-tsin;
};
tb10x_mscr0: tb10x-mdscr@FF307000 {
tb10x_mscr0: tb10x-mdscr@ff307000 {
compatible = "abilis,tb100-mdscr";
reg = <0xFF307000 0x7000>;
reg = <0xff307000 0x7000>;
};
tb10x_scr0: tb10x-mdscr@ff30e000 {
compatible = "abilis,tb100-mdscr";
reg = <0xFF30e000 0x4000>;
reg = <0xff30e000 0x4000>;
tb100-mdscr-manage-tsin;
};
tb10x_scr1: tb10x-mdscr@ff312000 {
compatible = "abilis,tb100-mdscr";
reg = <0xFF312000 0x4000>;
reg = <0xff312000 0x4000>;
tb100-mdscr-manage-tsin;
};
tb10x_wfb: tb10x-wfb@ff319000 {

6
arch/arc/boot/dts/axc001.dtsi
View File

@ -41,7 +41,7 @@
* this GPIO block ORs all interrupts on CPU card (creg,..)
* to uplink only 1 IRQ to ARC core intc
*/
dw-apb-gpio@0x2000 {
dw-apb-gpio@2000 {
compatible = "snps,dw-apb-gpio";
reg = < 0x2000 0x80 >;
#address-cells = <1>;
@ -60,7 +60,7 @@
};
};
debug_uart: dw-apb-uart@0x5000 {
debug_uart: dw-apb-uart@5000 {
compatible = "snps,dw-apb-uart";
reg = <0x5000 0x100>;
clock-frequency = <33333000>;
@ -88,7 +88,7 @@
* avoid duplicating the MB dtsi file given that IRQ from
* this intc to cpu intc are different for axs101 and axs103
*/
mb_intc: dw-apb-ictl@0xe0012000 {
mb_intc: dw-apb-ictl@e0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
reg = < 0x0 0xe0012000 0x0 0x200 >;

16
arch/arc/boot/dts/axc003.dtsi
View File

@ -55,7 +55,7 @@
* this GPIO block ORs all interrupts on CPU card (creg,..)
* to uplink only 1 IRQ to ARC core intc
*/
dw-apb-gpio@0x2000 {
dw-apb-gpio@2000 {
compatible = "snps,dw-apb-gpio";
reg = < 0x2000 0x80 >;
#address-cells = <1>;
@ -74,7 +74,7 @@
};
};
debug_uart: dw-apb-uart@0x5000 {
debug_uart: dw-apb-uart@5000 {
compatible = "snps,dw-apb-uart";
reg = <0x5000 0x100>;
clock-frequency = <33333000>;
@ -102,19 +102,19 @@
* external DMA buffer located outside of IOC aperture.
*/
axs10x_mb {
ethernet@0x18000 {
ethernet@18000 {
dma-coherent;
};
ehci@0x40000 {
ehci@40000 {
dma-coherent;
};
ohci@0x60000 {
ohci@60000 {
dma-coherent;
};
mmc@0x15000 {
mmc@15000 {
dma-coherent;
};
};
@ -132,7 +132,7 @@
* avoid duplicating the MB dtsi file given that IRQ from
* this intc to cpu intc are different for axs101 and axs103
*/
mb_intc: dw-apb-ictl@0xe0012000 {
mb_intc: dw-apb-ictl@e0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
reg = < 0x0 0xe0012000 0x0 0x200 >;
@ -153,7 +153,7 @@
#size-cells = <2>;
ranges;
/*
* Move frame buffer out of IOC aperture (0x8z-0xAz).
* Move frame buffer out of IOC aperture (0x8z-0xaz).
*/
frame_buffer: frame_buffer@be000000 {
compatible = "shared-dma-pool";

16
arch/arc/boot/dts/axc003_idu.dtsi
View File

@ -62,7 +62,7 @@
* this GPIO block ORs all interrupts on CPU card (creg,..)
* to uplink only 1 IRQ to ARC core intc
*/
dw-apb-gpio@0x2000 {
dw-apb-gpio@2000 {
compatible = "snps,dw-apb-gpio";
reg = < 0x2000 0x80 >;
#address-cells = <1>;
@ -81,7 +81,7 @@
};
};
debug_uart: dw-apb-uart@0x5000 {
debug_uart: dw-apb-uart@5000 {
compatible = "snps,dw-apb-uart";
reg = <0x5000 0x100>;
clock-frequency = <33333000>;
@ -109,19 +109,19 @@
* external DMA buffer located outside of IOC aperture.
*/
axs10x_mb {
ethernet@0x18000 {
ethernet@18000 {
dma-coherent;
};
ehci@0x40000 {
ehci@40000 {
dma-coherent;
};
ohci@0x60000 {
ohci@60000 {
dma-coherent;
};
mmc@0x15000 {
mmc@15000 {
dma-coherent;
};
};
@ -138,7 +138,7 @@
* avoid duplicating the MB dtsi file given that IRQ from
* this intc to cpu intc are different for axs101 and axs103
*/
mb_intc: dw-apb-ictl@0xe0012000 {
mb_intc: dw-apb-ictl@e0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
reg = < 0x0 0xe0012000 0x0 0x200 >;
@ -159,7 +159,7 @@
#size-cells = <2>;
ranges;
/*
* Move frame buffer out of IOC aperture (0x8z-0xAz).
* Move frame buffer out of IOC aperture (0x8z-0xaz).
*/
frame_buffer: frame_buffer@be000000 {
compatible = "shared-dma-pool";

22
arch/arc/boot/dts/axs10x_mb.dtsi
View File

@ -72,7 +72,7 @@
};
};
gmac: ethernet@0x18000 {
gmac: ethernet@18000 {
#interrupt-cells = <1>;
compatible = "snps,dwmac";
reg = < 0x18000 0x2000 >;
@ -88,13 +88,13 @@
mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */
};
ehci@0x40000 {
ehci@40000 {
compatible = "generic-ehci";
reg = < 0x40000 0x100 >;
interrupts = < 8 >;
};
ohci@0x60000 {
ohci@60000 {
compatible = "generic-ohci";
reg = < 0x60000 0x100 >;
interrupts = < 8 >;
@ -118,7 +118,7 @@
* dw_mci_pltfm_prepare_command() is used in generic platform
* code.
*/
mmc@0x15000 {
mmc@15000 {
compatible = "altr,socfpga-dw-mshc";
reg = < 0x15000 0x400 >;
fifo-depth = < 16 >;
@ -129,7 +129,7 @@
bus-width = < 4 >;
};
uart@0x20000 {
uart@20000 {
compatible = "snps,dw-apb-uart";
reg = <0x20000 0x100>;
clock-frequency = <33333333>;
@ -139,7 +139,7 @@
reg-io-width = <4>;
};
uart@0x21000 {
uart@21000 {
compatible = "snps,dw-apb-uart";
reg = <0x21000 0x100>;
clock-frequency = <33333333>;
@ -150,7 +150,7 @@
};
/* UART muxed with USB data port (ttyS3) */
uart@0x22000 {
uart@22000 {
compatible = "snps,dw-apb-uart";
reg = <0x22000 0x100>;
clock-frequency = <33333333>;
@ -160,7 +160,7 @@
reg-io-width = <4>;
};
i2c@0x1d000 {
i2c@1d000 {
compatible = "snps,designware-i2c";
reg = <0x1d000 0x100>;
clock-frequency = <400000>;
@ -177,7 +177,7 @@
#sound-dai-cells = <0>;
};
i2c@0x1f000 {
i2c@1f000 {
compatible = "snps,designware-i2c";
#address-cells = <1>;
#size-cells = <0>;
@ -218,13 +218,13 @@
};
};
eeprom@0x54{
eeprom@54{
compatible = "atmel,24c01";
reg = <0x54>;
pagesize = <0x8>;
};
eeprom@0x57{
eeprom@57{
compatible = "atmel,24c04";
reg = <0x57>;
pagesize = <0x8>;

46
arch/arc/boot/dts/hsdk.dts
View File

@ -18,8 +18,8 @@
model = "snps,hsdk";
compatible = "snps,hsdk";
#address-cells = <1>;
#size-cells = <1>;
#address-cells = <2>;
#size-cells = <2>;
chosen {
bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1";
@ -105,17 +105,17 @@
#size-cells = <1>;
interrupt-parent = <&idu_intc>;
ranges = <0x00000000 0xf0000000 0x10000000>;
ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
cgu_rst: reset-controller@8a0 {
compatible = "snps,hsdk-reset";
#reset-cells = <1>;
reg = <0x8A0 0x4>, <0xFF0 0x4>;
reg = <0x8a0 0x4>, <0xff0 0x4>;
};
core_clk: core-clk@0 {
compatible = "snps,hsdk-core-pll-clock";
reg = <0x00 0x10>, <0x14B8 0x4>;
reg = <0x00 0x10>, <0x14b8 0x4>;
#clock-cells = <0>;
clocks = <&input_clk>;
@ -167,6 +167,18 @@
#clock-cells = <0>;
};
dmac_core_clk: dmac-core-clk {
compatible = "fixed-clock";
clock-frequency = <400000000>;
#clock-cells = <0>;
};
dmac_cfg_clk: dmac-gpu-cfg-clk {
compatible = "fixed-clock";
clock-frequency = <200000000>;
#clock-cells = <0>;
};
gmac: ethernet@8000 {
#interrupt-cells = <1>;
compatible = "snps,dwmac";
@ -200,6 +212,7 @@
compatible = "snps,hsdk-v1.0-ohci", "generic-ohci";
reg = <0x60000 0x100>;
interrupts = <15>;
resets = <&cgu_rst HSDK_USB_RESET>;
dma-coherent;
};
@ -207,6 +220,7 @@
compatible = "snps,hsdk-v1.0-ehci", "generic-ehci";
reg = <0x40000 0x100>;
interrupts = <15>;
resets = <&cgu_rst HSDK_USB_RESET>;
dma-coherent;
};
@ -237,12 +251,28 @@
reg = <0>;
};
};
dmac: dmac@80000 {
compatible = "snps,axi-dma-1.01a";
reg = <0x80000 0x400>;
interrupts = <27>;
clocks = <&dmac_core_clk>, <&dmac_cfg_clk>;
clock-names = "core-clk", "cfgr-clk";
dma-channels = <4>;
snps,dma-masters = <2>;
snps,data-width = <3>;
snps,block-size = <4096 4096 4096 4096>;
snps,priority = <0 1 2 3>;
snps,axi-max-burst-len = <16>;
};
};
memory@80000000 {
#address-cells = <1>;
#size-cells = <1>;
#address-cells = <2>;
#size-cells = <2>;
device_type = "memory";
reg = <0x80000000 0x40000000>; /* 1 GiB */
reg = <0x0 0x80000000 0x0 0x40000000>; /* 1 GB lowmem */
/* 0x1 0x00000000 0x0 0x40000000>; 1 GB highmem */
};
};

4
arch/arc/boot/dts/vdk_axc003.dtsi
View File

@ -36,7 +36,7 @@
#interrupt-cells = <1>;
};
debug_uart: dw-apb-uart@0x5000 {
debug_uart: dw-apb-uart@5000 {
compatible = "snps,dw-apb-uart";
reg = <0x5000 0x100>;
clock-frequency = <2403200>;
@ -49,7 +49,7 @@
};
mb_intc: dw-apb-ictl@0xe0012000 {
mb_intc: dw-apb-ictl@e0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
reg = < 0xe0012000 0x200 >;

4
arch/arc/boot/dts/vdk_axc003_idu.dtsi
View File

@ -44,7 +44,7 @@
#interrupt-cells = <1>;
};
debug_uart: dw-apb-uart@0x5000 {
debug_uart: dw-apb-uart@5000 {
compatible = "snps,dw-apb-uart";
reg = <0x5000 0x100>;
clock-frequency = <2403200>;
@ -57,7 +57,7 @@
};
mb_intc: dw-apb-ictl@0xe0012000 {
mb_intc: dw-apb-ictl@e0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
reg = < 0xe0012000 0x200 >;

18
arch/arc/boot/dts/vdk_axs10x_mb.dtsi
View File

@ -36,7 +36,7 @@
};
};
ethernet@0x18000 {
ethernet@18000 {
#interrupt-cells = <1>;
compatible = "snps,dwmac";
reg = < 0x18000 0x2000 >;
@ -49,13 +49,13 @@
clock-names = "stmmaceth";
};
ehci@0x40000 {
ehci@40000 {
compatible = "generic-ehci";
reg = < 0x40000 0x100 >;
interrupts = < 8 >;
};
uart@0x20000 {
uart@20000 {
compatible = "snps,dw-apb-uart";
reg = <0x20000 0x100>;
clock-frequency = <2403200>;
@ -65,7 +65,7 @@
reg-io-width = <4>;
};
uart@0x21000 {
uart@21000 {
compatible = "snps,dw-apb-uart";
reg = <0x21000 0x100>;
clock-frequency = <2403200>;
@ -75,7 +75,7 @@
reg-io-width = <4>;
};
uart@0x22000 {
uart@22000 {
compatible = "snps,dw-apb-uart";
reg = <0x22000 0x100>;
clock-frequency = <2403200>;
@ -101,7 +101,7 @@
interrupt-names = "arc_ps2_irq";
};
mmc@0x15000 {
mmc@15000 {
compatible = "snps,dw-mshc";
reg = <0x15000 0x400>;
fifo-depth = <1024>;
@ -117,11 +117,11 @@
* Embedded Vision subsystem UIO mappings; only relevant for EV VDK
*
* This node is intentionally put outside of MB above becase
* it maps areas outside of MB's 0xEz-0xFz.
* it maps areas outside of MB's 0xez-0xfz.
*/
uio_ev: uio@0xD0000000 {
uio_ev: uio@d0000000 {
compatible = "generic-uio";
reg = <0xD0000000 0x2000 0xD1000000 0x2000 0x90000000 0x10000000 0xC0000000 0x10000000>;
reg = <0xd0000000 0x2000 0xd1000000 0x2000 0x90000000 0x10000000 0xc0000000 0x10000000>;
reg-names = "ev_gsa", "ev_ctrl", "ev_shared_mem", "ev_code_mem";
interrupt-parent = <&mb_intc>;
interrupts = <23>;

1
arch/arc/configs/hsdk_defconfig
View File

@ -8,6 +8,7 @@ CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_EMBEDDED=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set

1
arch/arc/include/asm/Kbuild
View File

@ -11,6 +11,7 @@ generic-y += hardirq.h
generic-y += hw_irq.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kvm_para.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h

12
arch/arc/include/asm/arcregs.h
View File

@ -82,6 +82,7 @@
#define ECR_V_DTLB_MISS 0x05
#define ECR_V_PROTV 0x06
#define ECR_V_TRAP 0x09
#define ECR_V_MISALIGN 0x0d
#endif
/* DTLB Miss and Protection Violation Cause Codes */
@ -167,14 +168,6 @@ struct bcr_mpy {
#endif
};
struct bcr_extn_xymem {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int ram_org:2, num_banks:4, bank_sz:4, ver:8;
#else
unsigned int ver:8, bank_sz:4, num_banks:4, ram_org:2;
#endif
};
struct bcr_iccm_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int base:16, pad:5, sz:3, ver:8;
@ -312,7 +305,7 @@ struct cpuinfo_arc {
struct cpuinfo_arc_bpu bpu;
struct bcr_identity core;
struct bcr_isa_arcv2 isa;
const char *details, *name;
const char *release, *name;
unsigned int vec_base;
struct cpuinfo_arc_ccm iccm, dccm;
struct {
@ -322,7 +315,6 @@ struct cpuinfo_arc {
timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
} extn;
struct bcr_mpy extn_mpy;
struct bcr_extn_xymem extn_xymem;
};
extern struct cpuinfo_arc cpuinfo_arc700[];

8
arch/arc/include/asm/irqflags-arcv2.h
View File

@ -44,7 +44,13 @@
#define ARCV2_IRQ_DEF_PRIO 1
/* seed value for status register */
#define ISA_INIT_STATUS_BITS (STATUS_IE_MASK | STATUS_AD_MASK | \
#ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
#define __AD_ENB STATUS_AD_MASK
#else
#define __AD_ENB 0
#endif
#define ISA_INIT_STATUS_BITS (STATUS_IE_MASK | __AD_ENB | \
(ARCV2_IRQ_DEF_PRIO << 1))
#ifndef __ASSEMBLY__

2
arch/arc/include/asm/perf_event.h
View File

@ -105,10 +105,10 @@ static const char * const arc_pmu_ev_hw_map[] = {
[PERF_COUNT_HW_INSTRUCTIONS] = "iall",
/* All jump instructions that are taken */
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmptak",
[PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */
#ifdef CONFIG_ISA_ARCV2
[PERF_COUNT_HW_BRANCH_MISSES] = "bpmp",
#else
[PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */
[PERF_COUNT_HW_BRANCH_MISSES] = "bpfail", /* NP-T, PT-NT, PNT-T */
#endif
[PERF_COUNT_ARC_LDC] = "imemrdc", /* Instr: mem read cached */

49
arch/arc/include/asm/spinlock.h
View File

@ -21,8 +21,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
{
unsigned int val;
smp_mb();
__asm__ __volatile__(
"1: llock %[val], [%[slock]] \n"
" breq %[val], %[LOCKED], 1b \n" /* spin while LOCKED */
@ -34,6 +32,14 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
[LOCKED] "r" (__ARCH_SPIN_LOCK_LOCKED__)
: "memory", "cc");
/*
* ACQUIRE barrier to ensure load/store after taking the lock
* don't "bleed-up" out of the critical section (leak-in is allowed)
* http://www.spinics.net/lists/kernel/msg2010409.html
*
* ARCv2 only has load-load, store-store and all-all barrier
* thus need the full all-all barrier
*/
smp_mb();
}
@ -42,8 +48,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
{
unsigned int val, got_it = 0;
smp_mb();
__asm__ __volatile__(
"1: llock %[val], [%[slock]] \n"
" breq %[val], %[LOCKED], 4f \n" /* already LOCKED, just bail */
@ -67,9 +71,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
smp_mb();
lock->slock = __ARCH_SPIN_LOCK_UNLOCKED__;
smp_mb();
WRITE_ONCE(lock->slock, __ARCH_SPIN_LOCK_UNLOCKED__);
}
/*
@ -81,8 +83,6 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
{
unsigned int val;
smp_mb();
/*
* zero means writer holds the lock exclusively, deny Reader.
* Otherwise grant lock to first/subseq reader
@ -113,8 +113,6 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
{
unsigned int val, got_it = 0;
smp_mb();
__asm__ __volatile__(
"1: llock %[val], [%[rwlock]] \n"
" brls %[val], %[WR_LOCKED], 4f\n" /* <= 0: already write locked, bail */
@ -140,8 +138,6 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
{
unsigned int val;
smp_mb();
/*
* If reader(s) hold lock (lock < __ARCH_RW_LOCK_UNLOCKED__),
* deny writer. Otherwise if unlocked grant to writer
@ -175,8 +171,6 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
{
unsigned int val, got_it = 0;
smp_mb();
__asm__ __volatile__(
"1: llock %[val], [%[rwlock]] \n"
" brne %[val], %[UNLOCKED], 4f \n" /* !UNLOCKED, bail */
@ -217,17 +211,13 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
: [val] "=&r" (val)
: [rwlock] "r" (&(rw->counter))
: "memory", "cc");
smp_mb();
}
static inline void arch_write_unlock(arch_rwlock_t *rw)
{
smp_mb();
rw->counter = __ARCH_RW_LOCK_UNLOCKED__;
smp_mb();
WRITE_ONCE(rw->counter, __ARCH_RW_LOCK_UNLOCKED__);
}
#else /* !CONFIG_ARC_HAS_LLSC */
@ -237,10 +227,9 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
unsigned int val = __ARCH_SPIN_LOCK_LOCKED__;
/*
* This smp_mb() is technically superfluous, we only need the one
* after the lock for providing the ACQUIRE semantics.
* However doing the "right" thing was regressing hackbench
* so keeping this, pending further investigation
* Per lkmm, smp_mb() is only required after _lock (and before_unlock)
* for ACQ and REL semantics respectively. However EX based spinlocks
* need the extra smp_mb to workaround a hardware quirk.
*/
smp_mb();
@ -257,14 +246,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
#endif
: "memory");
/*
* ACQUIRE barrier to ensure load/store after taking the lock
* don't "bleed-up" out of the critical section (leak-in is allowed)
* http://www.spinics.net/lists/kernel/msg2010409.html
*
* ARCv2 only has load-load, store-store and all-all barrier
* thus need the full all-all barrier
*/
smp_mb();
}
@ -309,8 +290,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
: "memory");
/*
* superfluous, but keeping for now - see pairing version in
* arch_spin_lock above
* see pairing version/comment in arch_spin_lock above
*/
smp_mb();
}
@ -344,7 +324,6 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
arch_spin_unlock(&(rw->lock_mutex));
local_irq_restore(flags);
smp_mb();
return ret;
}

7
arch/arc/include/asm/syscall.h
View File

@ -55,12 +55,11 @@ syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
*/
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, unsigned long *args)
unsigned long *args)
{
unsigned long *inside_ptregs = &(regs->r0);
inside_ptregs -= i;
BUG_ON((i + n) > 6);
unsigned int n = 6;
unsigned int i = 0;
while (n--) {
args[i++] = (*inside_ptregs);

1
arch/arc/include/uapi/asm/Kbuild
View File

@ -1,2 +1 @@
generic-y += kvm_para.h
generic-y += ucontext.h

6
arch/arc/kernel/head.S
View File

@ -54,7 +54,12 @@
; gcc 7.3.1 (ARC GNU 2018.03) onwards generates unaligned access
; by default
lr r5, [status32]
#ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
bset r5, r5, STATUS_AD_BIT
#else
; Although disabled at reset, bootloader might have enabled it
bclr r5, r5, STATUS_AD_BIT
#endif
kflag r5
#endif
.endm
@ -106,6 +111,7 @@ ENTRY(stext)
; r2 = pointer to uboot provided cmdline or external DTB in mem
; These are handled later in handle_uboot_args()
st r0, [@uboot_tag]
st r1, [@uboot_magic]
st r2, [@uboot_arg]
; setup "current" tsk and optionally cache it in dedicated r25

2
arch/arc/kernel/intc-arcv2.c
View File

@ -95,7 +95,7 @@ void arc_init_IRQ(void)
/* setup status32, don't enable intr yet as kernel doesn't want */
tmp = read_aux_reg(ARC_REG_STATUS32);
tmp |= STATUS_AD_MASK | (ARCV2_IRQ_DEF_PRIO << 1);
tmp |= ARCV2_IRQ_DEF_PRIO << 1;
tmp &= ~STATUS_IE_MASK;
asm volatile("kflag %0 \n"::"r"(tmp));
}

209
arch/arc/kernel/setup.c
View File

@ -36,6 +36,7 @@ unsigned int intr_to_DE_cnt;
/* Part of U-boot ABI: see head.S */
int __initdata uboot_tag;
int __initdata uboot_magic;
char __initdata *uboot_arg;
const struct machine_desc *machine_desc;
@ -44,29 +45,24 @@ struct task_struct *_current_task[NR_CPUS]; /* For stack switching */
struct cpuinfo_arc cpuinfo_arc700[NR_CPUS];
static const struct id_to_str arc_cpu_rel[] = {
static const struct id_to_str arc_legacy_rel[] = {
/* ID.ARCVER, Release */
#ifdef CONFIG_ISA_ARCOMPACT
{ 0x34, "R4.10"},
{ 0x35, "R4.11"},
{ 0x34, "R4.10"},
{ 0x35, "R4.11"},
#else
{ 0x51, "R2.0" },
{ 0x52, "R2.1" },
{ 0x53, "R3.0" },
{ 0x54, "R3.10a" },
{ 0x51, "R2.0" },
{ 0x52, "R2.1" },
{ 0x53, "R3.0" },
#endif
{ 0x00, NULL }
{ 0x00, NULL }
};
static const struct id_to_str arc_cpu_nm[] = {
#ifdef CONFIG_ISA_ARCOMPACT
{ 0x20, "ARC 600" },
{ 0x30, "ARC 770" }, /* 750 identified seperately */
#else
{ 0x40, "ARC EM" },
{ 0x50, "ARC HS38" },
{ 0x54, "ARC HS48" },
#endif
{ 0x00, "Unknown" }
static const struct id_to_str arc_cpu_rel[] = {
/* UARCH.MAJOR, Release */
{ 0, "R3.10a"},
{ 1, "R3.50a"},
{ 0xFF, NULL }
};
static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu)
@ -116,31 +112,72 @@ static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu)
}
}
static void decode_arc_core(struct cpuinfo_arc *cpu)
{
struct bcr_uarch_build_arcv2 uarch;
const struct id_to_str *tbl;
/*
* Up until (including) the first core4 release (0x54) things were
* simple: AUX IDENTITY.ARCVER was sufficient to identify arc family
* and release: 0x50 to 0x53 was HS38, 0x54 was HS48 (dual issue)
*/
if (cpu->core.family < 0x54) { /* includes arc700 */
for (tbl = &arc_legacy_rel[0]; tbl->id != 0; tbl++) {
if (cpu->core.family == tbl->id) {
cpu->release = tbl->str;
break;
}
}
if (is_isa_arcompact())
cpu->name = "ARC700";
else if (tbl->str)
cpu->name = "HS38";
else
cpu->name = cpu->release = "Unknown";
return;
}
/*
* However the subsequent HS release (same 0x54) allow HS38 or HS48
* configurations and encode this info in a different BCR.
* The BCR was introduced in 0x54 so can't be read unconditionally.
*/
READ_BCR(ARC_REG_MICRO_ARCH_BCR, uarch);
if (uarch.prod == 4) {
cpu->name = "HS48";
cpu->extn.dual = 1;
} else {
cpu->name = "HS38";
}
for (tbl = &arc_cpu_rel[0]; tbl->id != 0xFF; tbl++) {
if (uarch.maj == tbl->id) {
cpu->release = tbl->str;
break;
}
}
}
static void read_arc_build_cfg_regs(void)
{
struct bcr_timer timer;
struct bcr_generic bcr;
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
const struct id_to_str *tbl;
struct bcr_isa_arcv2 isa;
struct bcr_actionpoint ap;
FIX_PTR(cpu);
READ_BCR(AUX_IDENTITY, cpu->core);
for (tbl = &arc_cpu_rel[0]; tbl->id != 0; tbl++) {
if (cpu->core.family == tbl->id) {
cpu->details = tbl->str;
break;
}
}
for (tbl = &arc_cpu_nm[0]; tbl->id != 0; tbl++) {
if ((cpu->core.family & 0xF4) == tbl->id)
break;
}
cpu->name = tbl->str;
decode_arc_core(cpu);
READ_BCR(ARC_REG_TIMERS_BCR, timer);
cpu->extn.timer0 = timer.t0;
@ -151,16 +188,6 @@ static void read_arc_build_cfg_regs(void)
READ_BCR(ARC_REG_MUL_BCR, cpu->extn_mpy);
cpu->extn.norm = read_aux_reg(ARC_REG_NORM_BCR) > 1 ? 1 : 0; /* 2,3 */
cpu->extn.barrel = read_aux_reg(ARC_REG_BARREL_BCR) > 1 ? 1 : 0; /* 2,3 */
cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR) ? 1 : 0; /* 1,3 */
cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR) ? 1 : 0;
cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR) > 1 ? 1 : 0; /* 2 */
cpu->extn.swape = (cpu->core.family >= 0x34) ? 1 :
IS_ENABLED(CONFIG_ARC_HAS_SWAPE);
READ_BCR(ARC_REG_XY_MEM_BCR, cpu->extn_xymem);
/* Read CCM BCRs for boot reporting even if not enabled in Kconfig */
read_decode_ccm_bcr(cpu);
@ -198,30 +225,12 @@ static void read_arc_build_cfg_regs(void)
cpu->bpu.num_pred = 2048 << bpu.pte;
cpu->bpu.ret_stk = 4 << bpu.rse;
if (cpu->core.family >= 0x54) {
/* if dual issue hardware, is it enabled ? */
if (cpu->extn.dual) {
unsigned int exec_ctrl;
struct bcr_uarch_build_arcv2 uarch;
/*
* The first 0x54 core (uarch maj:min 0:1 or 0:2) was
* dual issue only (HS4x). But next uarch rev (1:0)
* allows it be configured for single issue (HS3x)
* Ensure we fiddle with dual issue only on HS4x
*/
READ_BCR(ARC_REG_MICRO_ARCH_BCR, uarch);
if (uarch.prod == 4) {
unsigned int exec_ctrl;
/* dual issue hardware always present */
cpu->extn.dual = 1;
READ_BCR(AUX_EXEC_CTRL, exec_ctrl);
/* dual issue hardware enabled ? */
cpu->extn.dual_enb = !(exec_ctrl & 1);
}
READ_BCR(AUX_EXEC_CTRL, exec_ctrl);
cpu->extn.dual_enb = !(exec_ctrl & 1);
}
}
@ -263,7 +272,8 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
{
struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id];
struct bcr_identity *core = &cpu->core;
int i, n = 0, ua = 0;
char mpy_opt[16];
int n = 0;
FIX_PTR(cpu);
@ -272,7 +282,7 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
core->family, core->cpu_id, core->chip_id);
n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s%s%s\n",
cpu_id, cpu->name, cpu->details,
cpu_id, cpu->name, cpu->release,
is_isa_arcompact() ? "ARCompact" : "ARCv2",
IS_AVAIL1(cpu->isa.be, "[Big-Endian]"),
IS_AVAIL3(cpu->extn.dual, cpu->extn.dual_enb, " Dual-Issue "));
@ -283,61 +293,50 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
IS_AVAIL2(cpu->extn.rtc, "RTC [UP 64-bit] ", CONFIG_ARC_TIMERS_64BIT),
IS_AVAIL2(cpu->extn.gfrc, "GFRC [SMP 64-bit] ", CONFIG_ARC_TIMERS_64BIT));
#ifdef __ARC_UNALIGNED__
ua = 1;
#endif
n += i = scnprintf(buf + n, len - n, "%s%s%s%s%s%s",
IS_AVAIL2(cpu->isa.atomic, "atomic ", CONFIG_ARC_HAS_LLSC),
IS_AVAIL2(cpu->isa.ldd, "ll64 ", CONFIG_ARC_HAS_LL64),
IS_AVAIL1(cpu->isa.unalign, "unalign "), IS_USED_RUN(ua));
if (i)
n += scnprintf(buf + n, len - n, "\n\t\t: ");
if (cpu->extn_mpy.ver) {
if (cpu->extn_mpy.ver <= 0x2) { /* ARCompact */
n += scnprintf(buf + n, len - n, "mpy ");
if (is_isa_arcompact()) {
scnprintf(mpy_opt, 16, "mpy");
} else {
int opt = 2; /* stock MPY/MPYH */
if (cpu->extn_mpy.dsp) /* OPT 7-9 */
opt = cpu->extn_mpy.dsp + 6;
n += scnprintf(buf + n, len - n, "mpy[opt %d] ", opt);
scnprintf(mpy_opt, 16, "mpy[opt %d] ", opt);
}
}
n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n",
IS_AVAIL1(cpu->isa.div_rem, "div_rem "),
IS_AVAIL1(cpu->extn.norm, "norm "),
IS_AVAIL1(cpu->extn.barrel, "barrel-shift "),
IS_AVAIL1(cpu->extn.swap, "swap "),
IS_AVAIL1(cpu->extn.minmax, "minmax "),
IS_AVAIL1(cpu->extn.crc, "crc "),
IS_AVAIL2(cpu->extn.swape, "swape", CONFIG_ARC_HAS_SWAPE));
IS_AVAIL2(cpu->isa.atomic, "atomic ", CONFIG_ARC_HAS_LLSC),
IS_AVAIL2(cpu->isa.ldd, "ll64 ", CONFIG_ARC_HAS_LL64),
IS_AVAIL2(cpu->isa.unalign, "unalign ", CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS),
IS_AVAIL1(cpu->extn_mpy.ver, mpy_opt),
IS_AVAIL1(cpu->isa.div_rem, "div_rem "));
if (cpu->bpu.ver)
if (cpu->bpu.ver) {
n += scnprintf(buf + n, len - n,
"BPU\t\t: %s%s match, cache:%d, Predict Table:%d Return stk: %d",
IS_AVAIL1(cpu->bpu.full, "full"),
IS_AVAIL1(!cpu->bpu.full, "partial"),
cpu->bpu.num_cache, cpu->bpu.num_pred, cpu->bpu.ret_stk);
if (is_isa_arcv2()) {
struct bcr_lpb lpb;
if (is_isa_arcv2()) {
struct bcr_lpb lpb;
READ_BCR(ARC_REG_LPB_BUILD, lpb);
if (lpb.ver) {
unsigned int ctl;
ctl = read_aux_reg(ARC_REG_LPB_CTRL);
READ_BCR(ARC_REG_LPB_BUILD, lpb);
if (lpb.ver) {
unsigned int ctl;
ctl = read_aux_reg(ARC_REG_LPB_CTRL);
n += scnprintf(buf + n, len - n, " Loop Buffer:%d %s",
lpb.entries,
IS_DISABLED_RUN(!ctl));
n += scnprintf(buf + n, len - n, " Loop Buffer:%d %s",
lpb.entries,
IS_DISABLED_RUN(!ctl));
}
}
n += scnprintf(buf + n, len - n, "\n");
}
n += scnprintf(buf + n, len - n, "\n");
return buf;
}
@ -390,11 +389,6 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
}
}
n += scnprintf(buf + n, len - n, "OS ABI [v%d]\t: %s\n",
EF_ARC_OSABI_CURRENT >> 8,
EF_ARC_OSABI_CURRENT == EF_ARC_OSABI_V3 ?
"no-legacy-syscalls" : "64-bit data any register aligned");
return buf;
}
@ -497,6 +491,8 @@ static inline bool uboot_arg_invalid(unsigned long addr)
#define UBOOT_TAG_NONE 0
#define UBOOT_TAG_CMDLINE 1
#define UBOOT_TAG_DTB 2
/* We always pass 0 as magic from U-boot */
#define UBOOT_MAGIC_VALUE 0
void __init handle_uboot_args(void)
{
@ -511,6 +507,11 @@ void __init handle_uboot_args(void)
goto ignore_uboot_args;
}
if (uboot_magic != UBOOT_MAGIC_VALUE) {
pr_warn(IGNORE_ARGS "non zero uboot magic\n");
goto ignore_uboot_args;
}
if (uboot_tag != UBOOT_TAG_NONE &&
uboot_arg_invalid((unsigned long)uboot_arg)) {
pr_warn(IGNORE_ARGS "invalid uboot arg: '%px'\n", uboot_arg);

5
arch/arc/kernel/troubleshoot.c
View File

@ -145,7 +145,8 @@ static void show_ecr_verbose(struct pt_regs *regs)
} else if (vec == ECR_V_PROTV) {
if (cause_code == ECR_C_PROTV_INST_FETCH)
pr_cont("Execute from Non-exec Page\n");
else if (cause_code == ECR_C_PROTV_MISALIG_DATA)
else if (cause_code == ECR_C_PROTV_MISALIG_DATA &&
IS_ENABLED(CONFIG_ISA_ARCOMPACT))
pr_cont("Misaligned r/w from 0x%08lx\n", address);
else
pr_cont("%s access not allowed on page\n",
@ -161,6 +162,8 @@ static void show_ecr_verbose(struct pt_regs *regs)
pr_cont("Bus Error from Data Mem\n");
else
pr_cont("Bus Error, check PRM\n");
} else if (vec == ECR_V_MISALIGN) {
pr_cont("Misaligned r/w from 0x%08lx\n", address);
#endif
} else if (vec == ECR_V_TRAP) {
if (regs->ecr_param == 5)

8
arch/arc/lib/Makefile
View File

@ -8,4 +8,10 @@
lib-y := strchr-700.o strcpy-700.o strlen.o memcmp.o
lib-$(CONFIG_ISA_ARCOMPACT) += memcpy-700.o memset.o strcmp.o
lib-$(CONFIG_ISA_ARCV2) += memcpy-archs.o memset-archs.o strcmp-archs.o
lib-$(CONFIG_ISA_ARCV2) += memset-archs.o strcmp-archs.o
ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs-unaligned.o
else
lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs.o
endif

47
arch/arc/lib/memcpy-archs-unaligned.S Normal file
View File

@ -0,0 +1,47 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* ARCv2 memcpy implementation optimized for unaligned memory access using.
*
* Copyright (C) 2019 Synopsys
* Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
*/
#include <linux/linkage.h>
#ifdef CONFIG_ARC_HAS_LL64
# define LOADX(DST,RX) ldd.ab DST, [RX, 8]
# define STOREX(SRC,RX) std.ab SRC, [RX, 8]
# define ZOLSHFT 5
# define ZOLAND 0x1F
#else
# define LOADX(DST,RX) ld.ab DST, [RX, 4]
# define STOREX(SRC,RX) st.ab SRC, [RX, 4]
# define ZOLSHFT 4
# define ZOLAND 0xF
#endif
ENTRY_CFI(memcpy)
mov r3, r0 ; don;t clobber ret val
lsr.f lp_count, r2, ZOLSHFT
lpnz @.Lcopy32_64bytes
;; LOOP START
LOADX (r6, r1)
LOADX (r8, r1)
LOADX (r10, r1)
LOADX (r4, r1)
STOREX (r6, r3)
STOREX (r8, r3)
STOREX (r10, r3)
STOREX (r4, r3)
.Lcopy32_64bytes:
and.f lp_count, r2, ZOLAND ;Last remaining 31 bytes
lpnz @.Lcopyremainingbytes
;; LOOP START
ldb.ab r5, [r1, 1]
stb.ab r5, [r3, 1]
.Lcopyremainingbytes:
j [blink]
END_CFI(memcpy)

4
arch/arc/lib/memset-archs.S
View File

@ -30,10 +30,10 @@
#else
.macro PREALLOC_INSTR
.macro PREALLOC_INSTR reg, off
.endm
.macro PREFETCHW_INSTR
.macro PREFETCHW_INSTR reg, off
.endm
#endif

31
arch/arc/mm/cache.c
View File

@ -113,10 +113,24 @@ static void read_decode_cache_bcr_arcv2(int cpu)
}
READ_BCR(ARC_REG_CLUSTER_BCR, cbcr);
if (cbcr.c)
if (cbcr.c) {
ioc_exists = 1;
else
/*
* As for today we don't support both IOC and ZONE_HIGHMEM enabled
* simultaneously. This happens because as of today IOC aperture covers
* only ZONE_NORMAL (low mem) and any dma transactions outside this
* region won't be HW coherent.
* If we want to use both IOC and ZONE_HIGHMEM we can use
* bounce_buffer to handle dma transactions to HIGHMEM.
* Also it is possible to modify dma_direct cache ops or increase IOC
* aperture size if we are planning to use HIGHMEM without PAE.
*/
if (IS_ENABLED(CONFIG_HIGHMEM) || is_pae40_enabled())
ioc_enable = 0;
} else {
ioc_enable = 0;
}
/* HS 2.0 didn't have AUX_VOL */
if (cpuinfo_arc700[cpu].core.family > 0x51) {
@ -1158,19 +1172,6 @@ noinline void __init arc_ioc_setup(void)
if (!ioc_enable)
return;
/*
* As for today we don't support both IOC and ZONE_HIGHMEM enabled
* simultaneously. This happens because as of today IOC aperture covers
* only ZONE_NORMAL (low mem) and any dma transactions outside this
* region won't be HW coherent.
* If we want to use both IOC and ZONE_HIGHMEM we can use
* bounce_buffer to handle dma transactions to HIGHMEM.
* Also it is possible to modify dma_direct cache ops or increase IOC
* aperture size if we are planning to use HIGHMEM without PAE.
*/
if (IS_ENABLED(CONFIG_HIGHMEM))
panic("IOC and HIGHMEM can't be used simultaneously");
/* Flush + invalidate + disable L1 dcache */
__dc_disable();

12
arch/arc/plat-eznps/Kconfig
View File

@ -26,8 +26,8 @@ config EZNPS_MTM_EXT
help
Here we add new hierarchy for CPUs topology.
We got:
Core
Thread
Core
Thread
At the new thread level each CPU represent one HW thread.
At highest hierarchy each core contain 16 threads,
any of them seem like CPU from Linux point of view.
@ -35,10 +35,10 @@ config EZNPS_MTM_EXT
core and HW scheduler round robin between them.
config EZNPS_MEM_ERROR_ALIGN
bool "ARC-EZchip Memory error as an exception"
depends on EZNPS_MTM_EXT
default n
help
bool "ARC-EZchip Memory error as an exception"
depends on EZNPS_MTM_EXT
default n
help
On the real chip of the NPS, user memory errors are handled
as a machine check exception, which is fatal, whereas on
simulator platform for NPS, is handled as a Level 2 interrupt

3
arch/arm/Kconfig
View File

@ -73,7 +73,7 @@ config ARM
select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
select HAVE_EXIT_THREAD
select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL
select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL && !CC_IS_CLANG
select HAVE_FUNCTION_TRACER if !XIP_KERNEL
select HAVE_GCC_PLUGINS
select HAVE_HW_BREAKPOINT if PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)
@ -596,6 +596,7 @@ config ARCH_DAVINCI
select HAVE_IDE
select PM_GENERIC_DOMAINS if PM
select PM_GENERIC_DOMAINS_OF if PM && OF
select REGMAP_MMIO
select RESET_CONTROLLER
select SPARSE_IRQ
select USE_OF

6
arch/arm/Kconfig.debug
View File

@ -47,8 +47,8 @@ config DEBUG_WX
choice
prompt "Choose kernel unwinder"
default UNWINDER_ARM if AEABI && !FUNCTION_GRAPH_TRACER
default UNWINDER_FRAME_POINTER if !AEABI || FUNCTION_GRAPH_TRACER
default UNWINDER_ARM if AEABI
default UNWINDER_FRAME_POINTER if !AEABI
help
This determines which method will be used for unwinding kernel stack
traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
@ -65,7 +65,7 @@ config UNWINDER_FRAME_POINTER
config UNWINDER_ARM
bool "ARM EABI stack unwinder"
depends on AEABI
depends on AEABI && !FUNCTION_GRAPH_TRACER
select ARM_UNWIND
help
This option enables stack unwinding support in the kernel

16
arch/arm/boot/compressed/head.S
View File

@ -1438,7 +1438,21 @@ ENTRY(efi_stub_entry)
@ Preserve return value of efi_entry() in r4
mov r4, r0
bl cache_clean_flush
@ our cache maintenance code relies on CP15 barrier instructions
@ but since we arrived here with the MMU and caches configured
@ by UEFI, we must check that the CP15BEN bit is set in SCTLR.
@ Note that this bit is RAO/WI on v6 and earlier, so the ISB in
@ the enable path will be executed on v7+ only.
mrc p15, 0, r1, c1, c0, 0 @ read SCTLR
tst r1, #(1 << 5) @ CP15BEN bit set?
bne 0f
orr r1, r1, #(1 << 5) @ CP15 barrier instructions
mcr p15, 0, r1, c1, c0, 0 @ write SCTLR
ARM( .inst 0xf57ff06f @ v7+ isb )
THUMB( isb )
0: bl cache_clean_flush
bl cache_off
@ Set parameters for booting zImage according to boot protocol

26
arch/arm/boot/dts/am335x-evm.dts
View File

@ -57,6 +57,24 @@
enable-active-high;
};
/* TPS79501 */
v1_8d_reg: fixedregulator-v1_8d {
compatible = "regulator-fixed";
regulator-name = "v1_8d";
vin-supply = <&vbat>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
/* TPS79501 */
v3_3d_reg: fixedregulator-v3_3d {
compatible = "regulator-fixed";
regulator-name = "v3_3d";
vin-supply = <&vbat>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
matrix_keypad: matrix_keypad0 {
compatible = "gpio-matrix-keypad";
debounce-delay-ms = <5>;
@ -499,10 +517,10 @@
status = "okay";
/* Regulators */
AVDD-supply = <&vaux2_reg>;
IOVDD-supply = <&vaux2_reg>;
DRVDD-supply = <&vaux2_reg>;
DVDD-supply = <&vbat>;
AVDD-supply = <&v3_3d_reg>;
IOVDD-supply = <&v3_3d_reg>;
DRVDD-supply = <&v3_3d_reg>;
DVDD-supply = <&v1_8d_reg>;
};
};

26
arch/arm/boot/dts/am335x-evmsk.dts
View File

@ -73,6 +73,24 @@
enable-active-high;
};
/* TPS79518 */
v1_8d_reg: fixedregulator-v1_8d {
compatible = "regulator-fixed";
regulator-name = "v1_8d";
vin-supply = <&vbat>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
/* TPS78633 */
v3_3d_reg: fixedregulator-v3_3d {
compatible = "regulator-fixed";
regulator-name = "v3_3d";
vin-supply = <&vbat>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
leds {
pinctrl-names = "default";
pinctrl-0 = <&user_leds_s0>;
@ -501,10 +519,10 @@
status = "okay";
/* Regulators */
AVDD-supply = <&vaux2_reg>;
IOVDD-supply = <&vaux2_reg>;
DRVDD-supply = <&vaux2_reg>;
DVDD-supply = <&vbat>;
AVDD-supply = <&v3_3d_reg>;
IOVDD-supply = <&v3_3d_reg>;
DRVDD-supply = <&v3_3d_reg>;
DVDD-supply = <&v1_8d_reg>;
};
};

4
arch/arm/boot/dts/am33xx-l4.dtsi
View File

@ -1762,7 +1762,7 @@
reg = <0xcc000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM3_D_CAN0_CLKCTRL 0>;
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>;
clock-names = "fck";
#address-cells = <1>;
#size-cells = <1>;
@ -1785,7 +1785,7 @@
reg = <0xd0000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM3_D_CAN1_CLKCTRL 0>;
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>;
clock-names = "fck";
#address-cells = <1>;
#size-cells = <1>;

2
arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
View File

@ -93,7 +93,7 @@
};
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
&pwm {

6
arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
View File

@ -114,9 +114,9 @@
reg = <2>;
};
switch@0 {
switch@10 {
compatible = "qca,qca8334";
reg = <0>;
reg = <10>;
switch_ports: ports {
#address-cells = <1>;
@ -125,7 +125,7 @@
ethphy0: port@0 {
reg = <0>;
label = "cpu";
phy-mode = "rgmii";
phy-mode = "rgmii-id";
ethernet = <&fec>;
fixed-link {

4
arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi
View File

@ -264,7 +264,7 @@
pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
vmcc-supply = <&reg_sd3_vmmc>;
cd-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
bus-witdh = <4>;
bus-width = <4>;
no-1-8-v;
status = "okay";
};
@ -275,7 +275,7 @@
pinctrl-1 = <&pinctrl_usdhc4_100mhz>;
pinctrl-2 = <&pinctrl_usdhc4_200mhz>;
vmcc-supply = <&reg_sd4_vmmc>;
bus-witdh = <8>;
bus-width = <8>;
no-1-8-v;
non-removable;
status = "okay";

1
arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
View File

@ -91,6 +91,7 @@
pinctrl-0 = <&pinctrl_enet>;
phy-handle = <&ethphy>;
phy-mode = "rgmii";
phy-reset-duration = <10>; /* in msecs */
phy-reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
phy-supply = <&vdd_eth_io_reg>;
status = "disabled";

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