arm64: dts: renesas: r9a07g054: Add DU node

Add DU node to RZ/V2L SoC DTSI.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240222132117.137729-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: r9a07g044: Add DU node

Add DU node to RZ/G2L SoC DTSI.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240222132117.137729-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: gray-hawk-single: Add QSPI FLASH support

Describe the QSPI FLASH on the Gray Hawk Single board.

Signed-off-by: Cong Dang <cong.dang.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/96d6567024cef9fcd6b04f92a697301c1c8d1d8e.1708354463.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add RPC node

Add a device node for the SPI Multi I/O Bus Controller (RPC-IF) on the
Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Cong Dang <cong.dang.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/26f9c5d5a7944db3813ed53459aa9c5767c1bdc0.1708354463.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add DMA support

Add device nodes for the Direct Memory Access Controllers for System
(SYS-DMAC) on the Renesas R-Car V4M (R8A779H0) SoC.

Link all DMA consumers to the corresponding DMA controller channels.

Based on patches in the BSP by Thanh Le and Minh Le.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/44de886cd83f41659d2f6962c0e277f548fb0adb.1707916707.git.geert+renesas@glider.be

arm64: dts: renesas: gray-hawk-single: Add eMMC support

Describe the eMMC on the Gray Hawk Single board.

Signed-off-by: Cong Dang <cong.dang.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/208bfc781b1488e253e19626ad80876c34c86758.1707915763.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add SD/MMC node

Add a device node for SD/MMC on Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Cong Dang <cong.dang.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/4433cd73049ae517ea163bc703555ee8d9a4dd82.1707915763.git.geert+renesas@glider.be

ARM: dts: renesas: r8a7778: Add missing reg-names to sound node

Sound Driver requires "reg-names" to get register info.  Current driver
tries to get register info via "reg" instead of "reg-names" as backup
plan, but this support will be removed soon.
Use "reg-namess" for r8a7778 sound.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/87cyszpwmp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: rzg2ul-smarc: Enable CRU, CSI support

Enable CRU and CSI on RZ/G2UL SMARC EVK and tie the CSI to the OV5645
sensor using a Device Tree overlay.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240213141300.159847-1-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: gray-hawk-single: Add Ethernet support

Describe the wiring of the first Ethernet AVB instance to the Micrel
KSZ9031RNXVB PHY.

Signed-off-by: Thanh Quan <thanh.quan.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/b83b21b6477a0e31f99eaedbd36c03014b72ec8a.1707661382.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add Ethernet-AVB support

Add device nodes for the Renesas Ethernet AVB (EtherAVB-IF) blocks on
the Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Thanh Quan <thanh.quan.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/ae7488c0065b455b45f23253c997a94f4850064f.1707661382.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779g0: Correct avb[01] reg sizes

All Ethernet AVB instances on R-Car V4H have registers related to UDP/IP
support, but the declared register blocks for the first two instances
are too small to cover them.

Fix this by extending the register block sizes.

Fixes: 848c82db56923a8b ("arm64: dts: renesas: r8a779g0: Add RAVB nodes")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/83437778614a7c96f4d8f1be98dffeee29bb4a0b.1707660323.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779a0: Correct avb[01] reg sizes

All Ethernet AVB instances on R-Car V3U have registers related to UDP/IP
support, but the declared register blocks for the first two instances
are too small to cover them.

Fix this by extending the register block sizes.

Fixes: 5a633320f08b8c9b ("arm64: dts: renesas: r8a779a0: Add Ethernet-AVB support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/ce6ce3c4b1495e02e7c1803fca810a7178a84500.1707660323.git.geert+renesas@glider.be

arm64: dts: renesas: r9a08g045: Add PSCI support

Add PSCI support to enable suspend/resume with the help of TF-A.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240208135629.2840932-3-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: rzg3s-smarc-som: Guard Ethernet IRQ GPIO hogs

Ethernet IRQ GPIOs are marked as GPIO hogs.  Thus, these GPIOs are
requested at probe time without considering if there are other
peripherals that need them.  The Ethernet IRQ GPIOs are shared with
SDHI2.  Selection between Ethernet and SDHI2 is done through a hardware
switch.  To avoid scenarios where one wants to boot with SDHI2 support
and some SDHI pins are not propertly configured because of the GPIO
hogs, guard the Ethernet IRQ GPIO hogs with the proper build flag.

Fixes: 932ff0c802c6 ("arm64: dts: renesas: rzg3s-smarc-som: Enable the Ethernet interfaces")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240208124300.2740313-13-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: r9a08g045: Add missing interrupts to IRQC node

The IRQC block on the RZ/G3S (R9A08G045) SoC supports ECCRAM error
interrupts too.  Add those missing interrupts to the IRQC node.

Fixes: 837918aa3fdd ("arm64: dts: renesas: r9a08g045: Add IA55 interrupt controller node")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240205144421.51195-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: rzg2l: Add missing interrupts to IRQC nodes

The IRQC IP block supports Bus error and ECCRAM interrupts on RZ/G2L and
alike SoC's (listed below).  Update the IRQC nodes with the missing
interrupts, and additionally, include the 'interrupt-names' properties
in the IRQC nodes so that the driver can parse interrupts by name.

  - R9A07G043U              - RZ/G2UL
  - R9A07G044L/R9A07G044LC  - RZ/{G2L,G2LC}
  - R9A07G054               - RZ/V2L

Fixes: 5edc51af5b30 ("arm64: dts: renesas: r9a07g044: Add IRQC node")
Fixes: 48ab6eddd8bb ("arm64: dts: renesas: r9a07g043u: Add IRQC node")
Fixes: 379478ab09e0 ("arm64: dts: renesas: r9a07g054: Add IRQC node")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240205144421.51195-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: r8a779h0: Add CA76 operating points

Add operating points for running the Cortex-A76 CPU cores on R-Car V4M
at various speeds, up to the Normal (1.0 GHz).

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/736b5836ec2b54e8b36712866309dc1b7ee1fc48.1706796979.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add CPU core clocks

Describe the clocks for the four Cortex-A76 CPU cores.
CA76 CPU cores 0,1,2,3 are clocked by ZC0,ZC1,ZC2,ZC3.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/c64cf6ca1590fa1a36b90a18fd70c831d5b8318e.1706796979.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add CPUIdle support

Support CPUIdle for ARM Cortex-A76 on R-Car V4M.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/848d176bdbcaf3bc44e5dae555afa9c812a19fd1.1706796979.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add secondary CA76 CPU cores

Complete the description of the Cortex-A76 CPU cores and L3 cache
controllers on the Renesas R-Car V4M (R8A779H0) SoC, including CPU
topology and PSCI support for enabling CPU cores.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/c2a38a0da74915bf2a9171e53886c83a1c732934.1706796979.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add L3 cache controller

Describe the cache configuration for the first Cortex-A76 CPU core on
the Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/9d56a46892c5e0957d244370e6809013cf815905.1706796979.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add GPIO nodes

Add device nodes for the General Purpose Input/Output (GPIO) blocks on
the Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Cong Dang <cong.dang.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/d4c1c40404ab84c7e7c07612077ca1a319ae7283.1706796918.git.geert+renesas@glider.be

arm64: dts: renesas: gray-hawk-single: Add I2C0 and EEPROMs

Enable the I2C0 bus on the Gray Hawk Single board, and describe the I2C
EEPROMs present.

Based on patches for Gray Hawk in the BSP by Hai Pham.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/960595394a274b675f1ec9ec1c324e4cc1ac1f77.1706796660.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add I2C nodes

Add device nodes for the I2C Bus Interfaces on the Renesas R-Car V4M
(R8A779H0) SoC.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/7dbbe13428273c5786ddff6ea7af6724fcdd4de8.1706796660.git.geert+renesas@glider.be

arm64: dts: renesas: ulcb-kf: Adapt sound 5v regulator to schematics

Sound uses the standard 5V supply, so rename the fixed regulator as
such. Also add properties documenting it is always on, also during boot.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240129212350.33370-3-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: ulcb-kf: Adapt 1.8V HDMI regulator to schematics

It is named T1.8V in the schematics. Also add properties documenting it
is always on, also during boot.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240129212350.33370-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: ulcb-kf: Add regulators for PCIe ch1

Without them, no power, so cards do not get recognized.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240129135840.28988-1-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: gray-hawk-single: Add serial console pin control

Complete the descriptions of the serial console and the external serial
clock by adding pin control.

Based on patches for Gray Hawk in the BSP by Hai Pham and Nghia Nguyen.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/b1eb2d3364d5ead7f7bcf7a737c5914971db64d3.1706266286.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add pinctrl device node

Add a device node for the Pin Function Controller on the Renesas R-Car
V4M (R8A779H0) SoC.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/0ab32290014b64ddbee5c9ec2808c8294d0b6192.1706266286.git.geert+renesas@glider.be

arm64: dts: renesas: gray-hawk-single: Enable watchdog timer

Enable the watchdog timer on the Gray Hawk Single board.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/cf6effafd9e0472a457eed9d84a834abc3e1c833.1706790320.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779h0: Add RWDT node

Add a device node for the RCLK Watchdog Timer (RWDT) on the Renesas
R-Car V4M (R8A779H0) SoC.

Signed-off-by: Minh Le <minh.le.aj@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/43bb03f3baa87b4be8ce953b1955df6b89387e4c.1706790320.git.geert+renesas@glider.be

arm64: dts: renesas: Improve TMU interrupt descriptions

Add the input capture interrupt on Timer Unit instances that have it.
Add "interrupt-names" properties for clarity.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/5c70ad8c2ea14333616c5add31a4a958f4a47081.1705325654.git.geert+renesas@glider.be

ARM: dts: renesas: Improve TMU interrupt descriptions

Add the input capture interrupt on Timer Unit instances that have it.
Add "interrupt-names" properties for clarity.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/389a18ee2cea96726462c28463cf212330f74ee3.1705325654.git.geert+renesas@glider.be

arm64: dts: renesas: r9a07g043u: Add CSI and CRU nodes

Add CSI and CRU nodes r9a07g043 (RZ/G2UL) SoC DTSI.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240126133116.121981-4-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: Add Gray Hawk Single board support

Add initial support for the Renesas Gray Hawk Single board, which is
based on the R-Car V4M (R8A779H0) SoC:
  - Memory,
  - Crystal oscillators,
  - Serial console.

Based on the White Hawk Single DTS, and on a patch for the Gray Hawk
board stack in the BSP by Hai Pham.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/b657402113267acd57aece0b4c681b707e704455.1706194617.git.geert+renesas@glider.be

arm64: dts: renesas: Add Renesas R8A779H0 SoC support

Add initial support for the Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/4107bc3d7c31932da29e671ddf4b1564ba38a84c.1706194617.git.geert+renesas@glider.be

Merge tag 'renesas-r8a779h0-dt-binding-defs-tag' into renesas-dts-for-v6.9

Renesas R-Car V4M DT Binding Definitions

Clock and Power Domain definitions for the Renesas R-Car V4M (R8A779H0)
SoC, shared by driver and DT source files.

arm64: dts: renesas: rzg3s-smarc-som: Enable the watchdog interface

Enable the watchdog interface (accessible by Cortex-A of RZ/G3S SoC) on
RZ/G3S SMARC SoM.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240122111115.2861835-11-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: r9a08g045: Add watchdog node

Add the DT node for the watchdog IP accessible by Cortex-A of RZ/G3S
SoC (R9108G045).

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240122111115.2861835-10-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: r8a779g0: Add missing SCIF_CLK2

R-Car V4H actually has two SCIF_CLK pins.
The second pin provides the SCIF_CLK signal for HSCIF2 and SCIF4.

Fixes: a4c31c56d2d35641 ("arm64: dts: renesas: r8a779g0: Add SCIF nodes")
Fixes: 39d9dfc6fbe1860e ("arm64: dts: renesas: r8a779g0: Add remaining HSCIF nodes")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/72f20c1bf32187bd30a963cafe27252907d661f9.1705589612.git.geert+renesas@glider.be

dt-bindings: clock: Add R8A779H0 V4M CPG Core Clock Definitions

Add all Clock Pulse Generator Core Clock Outputs for the Renesas R-Car
V4M (R8A779H0) SoC.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/11acbd2a30b58607474e9c32eb798b3a00e85e73.1706194617.git.geert+renesas@glider.be

dt-bindings: clock: renesas,cpg-mssr: Document R-Car V4M support

Document support for the Clock Pulse Generator (CPG) and Module Standby
Software Reset (MSSR) module on the Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/eb3cd02b62f3ca834df079a3f1e551d9414fe42a.1706194617.git.geert+renesas@glider.be

dt-bindings: power: Add r8a779h0 SYSC power domain definitions

Add power domain indices for the Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/c5cbef71178cada761e9da7bcbb6f21334f93ef8.1706194617.git.geert+renesas@glider.be
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

dt-bindings: power: renesas,rcar-sysc: Document R-Car V4M support

Document support for the System Controller (SYSC) in the R-Car V4M
(R8A779H0) SoC.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/6315cbd0b6e9b92a7914d98f397a2c663ad521c6.1706194617.git.geert+renesas@glider.be
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

arm64: dts: renesas: r8a779g2: Add White Hawk Single support

The White Hawk Single board is a single-board integration of the Renesas
White Hawk CPU and Breakout board stack, based on the R-Car V4H ES2.0
(R8A779G2) SoC.

For now, the only visible differences compared to the board stack are:
  - The SoC is an updated version of R-Car V4H (R8A779G0),
  - The serial console uses an FT2232H instead of a CP2102 USB-UART
    bridge, with CTS/RTS wired.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/2b8d37949c17cca170c1d9e97f10a100b20c5cd9.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: Add Renesas R8A779G2 SoC support

Add support for the Renesas R-Car V4H ES2.0 (R8A779G2) SoC, which is an
updated version of the R-Car V4H (R8A779G0) SoC.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/4f773dbb66af5da51d1e171424ec8f97ee933b36.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: white-hawk: Factor out common parts

Factor out the parts on the White Hawk BreakOut board that are also
present on the White Hawk Single board, so they can be reused when
introducing support for the latter.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/8c05b4d283b5d765fbc6f64cee9a247cded29409.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: white-hawk-cpu: Factor out common parts

Factor out the parts on the White Hawk CPU board that are also present
on the White Hawk Single board, so they can be reused when introducing
support for the latter.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/50676e7e9ac1c50ab450c030481f60ece4c3947e.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: white-hawk: Add SoC name to top-level comment

The White Hawk CPU and BreakOut board DTS is specific to R-Car V4H.
Document it in the top-level comment.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/de81db7ca38c8f4737092bdac6891e9db4bb9bd6.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: white-hawk: Drop SoC parts from sub boards

The White Hawk CSI/DSI and RAVB/Ethernet(1000Base-T1) sub boards are not
specific to R-Car V4H.

Hence rename their DTS file names to drop the "r8a779g0-" prefix, and
remove any references to R-Car V4H.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/f89613d0df04cfa6196f8797fe655cf7cec812de.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: white-hawk-cpu: Restore sort order

Alphabetical by node name.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/f375293d6e21659ee30a86e2b46e4998a75ea3b5.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: r8a779g0: Add standalone White Hawk CPU support

The White Hawk CPU board can be used standalone, without connecting it
to the White Hawk BreakOut board.

Add a DTS file for supporting this use case.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/95ac53e7f2bc42402eb411ad7f64a66864a3de01.1706192990.git.geert+renesas@glider.be

arm64: dts: renesas: ulcb-kf: Add node for GNSS

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240117131807.24997-3-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: ulcb-kf: Drop duplicate 3.3v regulators

Schematics say that all these 3.3v sources are driven by "D3.3V".
We have a regulator for it already in ulcb.dtsi.  Use it instead.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240117131807.24997-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arm64: dts: renesas: r8a779g0: Restore sort order

Numerical by unit address, alphabetical by node name.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/f00ef274a73c8fd60f940a1649423a8927b9ae8a.1705324708.git.geert+renesas@glider.be

ARM: dts: renesas: r8a73a4: Fix thermal parent clock

According to Table 8.1, "Summary of Module Power, Reset condition and
Clock assignment" of the R-Mobile APE6 Hardware Manual Rev. 0.7, the
parent clock of the thermal sensor clock is the Common Peripheral (CP)
clock, which runs at 13 MHz (main clock / 2).

As the R-Car Thermal driver does not use the clock rate, this change has
no functional impact.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/aac49d67d7a38230875543d49e84fcca587fb9e1.1705315614.git.geert+renesas@glider.be

ARM: dts: renesas: r8a73a4: Add cp clock

Add the Common Peripheral (CP) clock, which is driven by the main
clock / 2 during normal system operation, but may be driven by EXTALR
during early system boot, when SYSCLK_EN is still low.  As the latter is
irrelevant to Linux, just model it as a fixed clock driven from
main_div2_clk.

Switch all users of main_div2_clk that are documented to be clocked by
the CP clock to cp_clk, to better reflect the actual clock topology.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/f9826b0755207a1e16871c17daca109fb11f3868.1705315614.git.geert+renesas@glider.be

ARM: dts: renesas: r8a73a4: Fix external clocks and clock rate

External clocks should be defined as zero-Hz clocks in the SoC .dtsi,
and overridden in the board .dts when present.

Correct the clock rate of extal1 from 25 to 26 MHz, to match the crystal
oscillator present on the APE6-EVM board.

Fixes: a76809a329d6ebae ("ARM: shmobile: r8a73a4: Common clock framework DT description")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/1692bc8cd465d62168cbf110522ad62a7af3f606.1705315614.git.geert+renesas@glider.be

arm64: dts: renesas: rzg3s-smarc: Add gpio keys

RZ SMARC Carrier II board has 3 user buttons called USER_SW1, USER_SW2,
USER_SW3. Add a DT node in device tree to propertly instantiate the
gpio-keys driver for these buttons.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20231227130810.2744550-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Linux 6.8-rc1

Merge tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs

Pull more bcachefs updates from Kent Overstreet:
 "Some fixes, Some refactoring, some minor features:

   - Assorted prep work for disk space accounting rewrite

   - BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this
     makes our trigger context more explicit

   - A few fixes to avoid excessive transaction restarts on
     multithreaded workloads: fstests (in addition to ktest tests) are
     now checking slowpath counters, and that's shaking out a few bugs

   - Assorted tracepoint improvements

   - Starting to break up bcachefs_format.h and move on disk types so
     they're with the code they belong to; this will make room to start
     documenting the on disk format better.

   - A few minor fixes"

* tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits)
  bcachefs: Improve inode_to_text()
  bcachefs: logged_ops_format.h
  bcachefs: reflink_format.h
  bcachefs; extents_format.h
  bcachefs: ec_format.h
  bcachefs: subvolume_format.h
  bcachefs: snapshot_format.h
  bcachefs: alloc_background_format.h
  bcachefs: xattr_format.h
  bcachefs: dirent_format.h
  bcachefs: inode_format.h
  bcachefs; quota_format.h
  bcachefs: sb-counters_format.h
  bcachefs: counters.c -> sb-counters.c
  bcachefs: comment bch_subvolume
  bcachefs: bch_snapshot::btime
  bcachefs: add missing __GFP_NOWARN
  bcachefs: opts->compression can now also be applied in the background
  bcachefs: Prep work for variable size btree node buffers
  bcachefs: grab s_umount only if snapshotting
  ...

Merge tag 'timers-core-2024-01-21' of git://git./linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Updates for time and clocksources:

   - A fix for the idle and iowait time accounting vs CPU hotplug.

     The time is reset on CPU hotplug which makes the accumulated
     systemwide time jump backwards.

   - Assorted fixes and improvements for clocksource/event drivers"

* tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug
  clocksource/drivers/ep93xx: Fix error handling during probe
  clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings
  clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings
  clocksource/timer-riscv: Add riscv_clock_shutdown callback
  dt-bindings: timer: Add StarFive JH8100 clint
  dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs

Merge tag 'powerpc-6.8-2' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Aneesh Kumar:

 - Increase default stack size to 32KB for Book3S

Thanks to Michael Ellerman.

* tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Increase default stack size to 32KB

bcachefs: Improve inode_to_text()

Add line breaks - inode_to_text() is now much easier to read.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: logged_ops_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: reflink_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs; extents_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: ec_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: subvolume_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: snapshot_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: alloc_background_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: xattr_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: dirent_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: inode_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs; quota_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: sb-counters_format.h

bcachefs_format.h has gotten too big; let's do some organizing.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: counters.c -> sb-counters.c

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: comment bch_subvolume

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: bch_snapshot::btime

Add a field to bch_snapshot for creation time; this will be important
when we start exposing the snapshot tree to userspace.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: add missing __GFP_NOWARN

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: opts->compression can now also be applied in the background

The "apply this compression method in the background" paths now use the
compression option if background_compression is not set; this means that
setting or changing the compression option will cause existing data to
be compressed accordingly in the background.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Prep work for variable size btree node buffers

bcachefs btree nodes are big - typically 256k - and btree roots are
pinned in memory. As we're now up to 18 btrees, we now have significant
memory overhead in mostly empty btree roots.

And in the future we're going to start enforcing that certain btree node
boundaries exist, to solve lock contention issues - analagous to XFS's
AGIs.

Thus, we need to start allocating smaller btree node buffers when we
can. This patch changes code that refers to the filesystem constant
c->opts.btree_node_size to refer to the btree node buffer size -
btree_buf_bytes() - where appropriate.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: grab s_umount only if snapshotting

When I was testing mongodb over bcachefs with compression,
there is a lockdep warning when snapshotting mongodb data volume.

$ cat test.sh
prog=bcachefs

$prog subvolume create /mnt/data
$prog subvolume create /mnt/data/snapshots

while true;do
    $prog subvolume snapshot /mnt/data /mnt/data/snapshots/$(date +%s)
    sleep 1s
done

$ cat /etc/mongodb.conf
systemLog:
  destination: file
  logAppend: true
  path: /mnt/data/mongod.log

storage:
  dbPath: /mnt/data/

lockdep reports:
[ 3437.452330] ======================================================
[ 3437.452750] WARNING: possible circular locking dependency detected
[ 3437.453168] 6.7.0-rc7-custom+ #85 Tainted: G            E
[ 3437.453562] ------------------------------------------------------
[ 3437.453981] bcachefs/35533 is trying to acquire lock:
[ 3437.454325] ffffa0a02b2b1418 (sb_writers#10){.+.+}-{0:0}, at: filename_create+0x62/0x190
[ 3437.454875]
               but task is already holding lock:
[ 3437.455268] ffffa0a02b2b10e0 (&type->s_umount_key#48){.+.+}-{3:3}, at: bch2_fs_file_ioctl+0x232/0xc90 [bcachefs]
[ 3437.456009]
               which lock already depends on the new lock.

[ 3437.456553]
               the existing dependency chain (in reverse order) is:
[ 3437.457054]
               -> #3 (&type->s_umount_key#48){.+.+}-{3:3}:
[ 3437.457507]        down_read+0x3e/0x170
[ 3437.457772]        bch2_fs_file_ioctl+0x232/0xc90 [bcachefs]
[ 3437.458206]        __x64_sys_ioctl+0x93/0xd0
[ 3437.458498]        do_syscall_64+0x42/0xf0
[ 3437.458779]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.459155]
               -> #2 (&c->snapshot_create_lock){++++}-{3:3}:
[ 3437.459615]        down_read+0x3e/0x170
[ 3437.459878]        bch2_truncate+0x82/0x110 [bcachefs]
[ 3437.460276]        bchfs_truncate+0x254/0x3c0 [bcachefs]
[ 3437.460686]        notify_change+0x1f1/0x4a0
[ 3437.461283]        do_truncate+0x7f/0xd0
[ 3437.461555]        path_openat+0xa57/0xce0
[ 3437.461836]        do_filp_open+0xb4/0x160
[ 3437.462116]        do_sys_openat2+0x91/0xc0
[ 3437.462402]        __x64_sys_openat+0x53/0xa0
[ 3437.462701]        do_syscall_64+0x42/0xf0
[ 3437.462982]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.463359]
               -> #1 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}:
[ 3437.463843]        down_write+0x3b/0xc0
[ 3437.464223]        bch2_write_iter+0x5b/0xcc0 [bcachefs]
[ 3437.464493]        vfs_write+0x21b/0x4c0
[ 3437.464653]        ksys_write+0x69/0xf0
[ 3437.464839]        do_syscall_64+0x42/0xf0
[ 3437.465009]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.465231]
               -> #0 (sb_writers#10){.+.+}-{0:0}:
[ 3437.465471]        __lock_acquire+0x1455/0x21b0
[ 3437.465656]        lock_acquire+0xc6/0x2b0
[ 3437.465822]        mnt_want_write+0x46/0x1a0
[ 3437.465996]        filename_create+0x62/0x190
[ 3437.466175]        user_path_create+0x2d/0x50
[ 3437.466352]        bch2_fs_file_ioctl+0x2ec/0xc90 [bcachefs]
[ 3437.466617]        __x64_sys_ioctl+0x93/0xd0
[ 3437.466791]        do_syscall_64+0x42/0xf0
[ 3437.466957]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.467180]
               other info that might help us debug this:

[ 3437.469670] 2 locks held by bcachefs/35533:
               other info that might help us debug this:

[ 3437.467507] Chain exists of:
                 sb_writers#10 --> &c->snapshot_create_lock --> &type->s_umount_key#48

[ 3437.467979]  Possible unsafe locking scenario:

[ 3437.468223]        CPU0                    CPU1
[ 3437.468405]        ----                    ----
[ 3437.468585]   rlock(&type->s_umount_key#48);
[ 3437.468758]                                lock(&c->snapshot_create_lock);
[ 3437.469030]                                lock(&type->s_umount_key#48);
[ 3437.469291]   rlock(sb_writers#10);
[ 3437.469434]
                *** DEADLOCK ***

[ 3437.469670] 2 locks held by bcachefs/35533:
[ 3437.469838]  #0: ffffa0a02ce00a88 (&c->snapshot_create_lock){++++}-{3:3}, at: bch2_fs_file_ioctl+0x1e3/0xc90 [bcachefs]
[ 3437.470294]  #1: ffffa0a02b2b10e0 (&type->s_umount_key#48){.+.+}-{3:3}, at: bch2_fs_file_ioctl+0x232/0xc90 [bcachefs]
[ 3437.470744]
               stack backtrace:
[ 3437.470922] CPU: 7 PID: 35533 Comm: bcachefs Kdump: loaded Tainted: G            E      6.7.0-rc7-custom+ #85
[ 3437.471313] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
[ 3437.471694] Call Trace:
[ 3437.471795]  <TASK>
[ 3437.471884]  dump_stack_lvl+0x57/0x90
[ 3437.472035]  check_noncircular+0x132/0x150
[ 3437.472202]  __lock_acquire+0x1455/0x21b0
[ 3437.472369]  lock_acquire+0xc6/0x2b0
[ 3437.472518]  ? filename_create+0x62/0x190
[ 3437.472683]  ? lock_is_held_type+0x97/0x110
[ 3437.472856]  mnt_want_write+0x46/0x1a0
[ 3437.473025]  ? filename_create+0x62/0x190
[ 3437.473204]  filename_create+0x62/0x190
[ 3437.473380]  user_path_create+0x2d/0x50
[ 3437.473555]  bch2_fs_file_ioctl+0x2ec/0xc90 [bcachefs]
[ 3437.473819]  ? lock_acquire+0xc6/0x2b0
[ 3437.474002]  ? __fget_files+0x2a/0x190
[ 3437.474195]  ? __fget_files+0xbc/0x190
[ 3437.474380]  ? lock_release+0xc5/0x270
[ 3437.474567]  ? __x64_sys_ioctl+0x93/0xd0
[ 3437.474764]  ? __pfx_bch2_fs_file_ioctl+0x10/0x10 [bcachefs]
[ 3437.475090]  __x64_sys_ioctl+0x93/0xd0
[ 3437.475277]  do_syscall_64+0x42/0xf0
[ 3437.475454]  entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.475691] RIP: 0033:0x7f2743c313af
======================================================

In __bch2_ioctl_subvolume_create(), we grab s_umount unconditionally
and unlock it at the end of the function. There is a comment
"why do we need this lock?" about the lock coming from
commit 42d237320e98 ("bcachefs: Snapshot creation, deletion")
The reason is that __bch2_ioctl_subvolume_create() calls
sync_inodes_sb() which enforce locked s_umount to writeback all dirty
nodes before doing snapshot works.

Fix it by read locking s_umount for snapshotting only and unlocking
s_umount after sync_inodes_sb().

Signed-off-by: Su Yue <glass.su@suse.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit

bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.
It should be freed by kvfree not kfree.
Or umount will triger:

[  406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008
[  406.830676 ] #PF: supervisor read access in kernel mode
[  406.831643 ] #PF: error_code(0x0000) - not-present page
[  406.832487 ] PGD 0 P4D 0
[  406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI
[  406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G           OE      6.7.0-rc7-custom+ #90
[  406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
[  406.835796 ] RIP: 0010:kfree+0x62/0x140
[  406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6
[  406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286
[  406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4
[  406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000
[  406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001
[  406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80
[  406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000
[  406.840451 ] FS:  00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000
[  406.840851 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0
[  406.841464 ] Call Trace:
[  406.841583 ]  <TASK>
[  406.841682 ]  ? __die+0x1f/0x70
[  406.841828 ]  ? page_fault_oops+0x159/0x470
[  406.842014 ]  ? fixup_exception+0x22/0x310
[  406.842198 ]  ? exc_page_fault+0x1ed/0x200
[  406.842382 ]  ? asm_exc_page_fault+0x22/0x30
[  406.842574 ]  ? bch2_fs_release+0x54/0x280 [bcachefs]
[  406.842842 ]  ? kfree+0x62/0x140
[  406.842988 ]  ? kfree+0x104/0x140
[  406.843138 ]  bch2_fs_release+0x54/0x280 [bcachefs]
[  406.843390 ]  kobject_put+0xb7/0x170
[  406.843552 ]  deactivate_locked_super+0x2f/0xa0
[  406.843756 ]  cleanup_mnt+0xba/0x150
[  406.843917 ]  task_work_run+0x59/0xa0
[  406.844083 ]  exit_to_user_mode_prepare+0x197/0x1a0
[  406.844302 ]  syscall_exit_to_user_mode+0x16/0x40
[  406.844510 ]  do_syscall_64+0x4e/0xf0
[  406.844675 ]  entry_SYSCALL_64_after_hwframe+0x6e/0x76
[  406.844907 ] RIP: 0033:0x7f0a2664e4fb

Signed-off-by: Su Yue <glass.su@suse.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: bios must be 512 byte algined

Fixes: 023f9ac9f70f bcachefs: Delete dio read alignment check
Reported-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: remove redundant variable tmp

The variable tmp is being assigned a value but it isn't being
read afterwards. The assignment is redundant and so tmp can be
removed.

Cleans up clang scan build warning:
warning: Although the value stored to 'ret' is used in the enclosing
expression, the value is never actually read from 'ret'
[deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Improve trace_trans_restart_relock

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Fix excess transaction restarts in __bchfs_fallocate()

drop_locks_do() should not be used in a fastpath without first trying
the do in nonblocking mode - the unlock and relock will cause excessive
transaction restarts and potentially livelocking with other threads that
are contending for the same locks.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: extents_to_bp_state

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: bkey_and_val_eq()

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Better journal tracepoints

Factor out bch2_journal_bufs_to_text(), and use it in the
journal_entry_full() tracepoint; when we can't get a journal reservation
we need to know the outstanding journal entry sizes to know if the
problem is due to excessive flushing.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Print size of superblock with space allocated

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Avoid flushing the journal in the discard path

When issuing discards, we may need to flush the journal if there's too
many buckets that can't be discarded until a journal flush.

But the heuristic was bad; we should be comparing the number of buckets
that need to flushes against the number of free buckets, not the number
of buckets we saw.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Improve move_extent tracepoint

Also print out the data_opts, so that we can see what specifically is
being done to an extent.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Add missing bch2_moving_ctxt_flush_all()

This fixes a bug with rebalance IOs getting stuck with reads completed,
but writes never being issued.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Re-add move_extent_write tracepoint

It appears this was accidentally deleted at some point - also, do a bit
of cleanup.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: bch2_kthread_io_clock_wait() no longer sleeps until full amount

Drop t he loop in bch2_kthread_io_clock_wait(): this allows the code
that uses it to be woken up for other reasons, and fixes a bug where
rebalance wouldn't wake up when a scan was requested.

This raises the possibility of spurious wakeups, but callers should
always be able to handle that reasonably well.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Add .val_to_text() for KEY_TYPE_cookie

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs: Don't pass memcmp() as a pointer

Some (buggy!) compilers have issues with this.

Fixes: https://github.com/koverstreet/bcachefs/issues/625
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>