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From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Cc: trini@konsulko.com, sjg@chromium.org, rasmus.villemoes@prevas.dk,
	Joel Stanley <joel@jms.id.au>,
	Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Subject: [RFC PATCH 0/8] Migrate watchdog reset to cyclic infrastructure
Date: Mon, 29 Aug 2022 08:23:05 +0200	[thread overview]
Message-ID: <20220829062313.32654-1-sr@denx.de> (raw)

This patchset migrates the watchdog triggering (WATCHDOG_RESET calls)
to the newly introduced cyclic execution framework. For this, the
watchdog driver now registers a cyclic execution function for each
WDT device that needs to get serviced. Additionally the cyclic IF is
a bit extended to also support the CONFIG_HW_WATCHDOG users. It might
make sense to deprecate this HW_WATCHDOG usage at some point.

Please note that this migration work is based on the cyclic execution
infrastructure, which I posted in the last few weeks. So these cyclic
patches need to be applied for this migration to work.

Please also note that I'm currently seeing Azure CI build issues with
the "test.ph evb_ast2600" build target, which runs into a timeout. I've
temporarily removed this target from the Azure CI builds, so that the
world build can continue to run. Hopefully I will get some hints /
assistance to fix this specific issue.

Some further cleanup and improvements are possible after this patch.
E.g. Heinrich mentioned that the WATCHDOG_RESET call locations need to
get improved / changed in some places.

I've pushed a working branch here for anyone who wants to do some
testing with this patchset:

https://source.denx.de/u-boot/custodians/u-boot-watchdog/-/commits/watchdog-migration-to-cyclic-v1-2022-08-29

Here the log from octeon_ebb7304 compiled on this branch:

U-Boot 2022.10-rc3-00063-g1050cb3e6d8e (Aug 29 2022 - 07:57:07 +0200)

SoC:   Octeon CN73xx (16 cores)
Model: cavium,ebb7304
DRAM:  256 MiB (16 GiB total)
Core:  31 devices, 24 uclasses, devicetree: separate
WDT:   Started interrupt-controller@1010000000000 with servicing all 1000ms (60s timeout)
Flash: 8 MiB
MMC:   octeontx-mmc0: 0, octeontx-mmc1: 1
Loading Environment from Flash... OK
QLM 0: PCIe gen3 root complex, x4 lanes
QLM 2: SGMII
QLM 3: XLAUI
QLM 5: SGMII
Net:   eth0: ethernet-mac-nexus@11800e0000000
=> cyclic list
function: interrupt-controller@1010000000000, cpu-time: 4 us, frequency: 1.11 times/s
=> wdt list
interrupt-controller@1010000000000 (wdt_octeontx)

Any comments and suggestions are welcome.

Thanks,
Stefan

Stefan Roese (8):
  cmd/cyclic: Use div64 macros for division and remainder
  watchdog: Integrate watchdog triggering into the cyclic framework
  cyclic: Introduce schedule() function
  cyclic: Use schedule() instead of WATCHDOG_RESET()
  watchdog: Get rid of ASSEMBLY hacks
  watchdog: Remove WATCHDOG_RESET macro
  watchdog: Further cleanup
  WIP: .azure-pipelines.yml: Remove evb-ast2600

 .azure-pipelines.yml                          |  3 -
 arch/arm/mach-at91/phy.c                      |  2 +-
 arch/arm/mach-imx/i2c-mxv7.c                  |  2 +-
 arch/arm/mach-socfpga/spl_a10.c               |  8 +-
 .../cmd_stm32prog/stm32prog_serial.c          |  6 +-
 arch/m68k/lib/time.c                          |  2 +-
 arch/powerpc/cpu/mpc8xx/cpu_init.c            |  2 +-
 arch/powerpc/lib/bootm.c                      |  6 +-
 arch/powerpc/lib/cache.c                      |  2 +-
 arch/powerpc/lib/interrupts.c                 |  2 +-
 arch/powerpc/lib/ticks.S                      |  5 +-
 board/astro/mcf5373l/fpga.c                   |  4 +-
 board/dhelectronics/dh_stm32mp1/board.c       |  2 +-
 board/liebherr/display5/spl.c                 |  2 +-
 board/nokia/rx51/rx51.c                       |  2 +-
 board/st/stm32mp1/stm32mp1.c                  |  2 +-
 boot/bootretry.c                              |  2 +-
 boot/image-board.c                            |  2 +-
 cmd/cyclic.c                                  |  7 +-
 cmd/fastboot.c                                |  2 +-
 cmd/mem.c                                     | 16 ++--
 cmd/usb_mass_storage.c                        |  2 +-
 cmd/ximg.c                                    |  2 +-
 common/board_f.c                              |  4 +-
 common/board_r.c                              |  2 +-
 common/cli_readline.c                         |  4 +-
 common/console.c                              |  2 +-
 common/cyclic.c                               | 11 +++
 common/dfu.c                                  |  2 +-
 common/lcd.c                                  | 10 +--
 common/menu.c                                 |  6 +-
 common/usb_kbd.c                              |  2 +-
 common/xyzModem.c                             |  2 +-
 drivers/block/ide.c                           |  8 +-
 drivers/crypto/aspeed/aspeed_hace.c           |  2 +-
 drivers/crypto/hash/hash_sw.c                 |  2 +-
 drivers/ddr/altera/sdram_arria10.c            |  4 +-
 drivers/ddr/altera/sdram_n5x.c                |  4 +-
 drivers/ddr/altera/sdram_soc64.c              |  2 +-
 drivers/fpga/intel_sdm_mb.c                   |  8 +-
 drivers/fpga/socfpga_arria10.c                |  8 +-
 drivers/i2c/mxc_i2c.c                         |  4 +-
 drivers/mmc/octeontx_hsmmc.c                  | 12 +--
 drivers/mmc/sh_mmcif.c                        |  6 +-
 drivers/mmc/stm32_sdmmc2.c                    |  2 +-
 drivers/mtd/cfi_flash.c                       |  4 +-
 drivers/mtd/nand/core.c                       |  2 +-
 drivers/mtd/nand/raw/atmel_nand.c             |  6 +-
 drivers/mtd/nand/raw/nand_base.c              | 10 +--
 drivers/mtd/nand/raw/nand_util.c              |  6 +-
 drivers/mtd/nand/spi/core.c                   |  4 +-
 drivers/mtd/onenand/onenand_base.c            |  4 +-
 drivers/mtd/spi/spi-nor-core.c                |  4 +-
 drivers/net/octeontx2/nix.c                   |  2 +-
 drivers/net/octeontx2/nix_af.c                | 32 ++++----
 drivers/ram/stm32mp1/stm32mp1_tests.c         |  2 +-
 drivers/serial/atmel_usart.c                  |  2 +-
 drivers/serial/ns16550.c                      |  6 +-
 drivers/serial/serial-uclass.c                |  2 +-
 drivers/serial/serial_bcm283x_mu.c            |  2 +-
 drivers/serial/serial_lpuart.c                |  8 +-
 drivers/serial/serial_mpc8xx.c                |  4 +-
 drivers/serial/serial_mt7620.c                |  2 +-
 drivers/serial/serial_mtk.c                   |  4 +-
 drivers/serial/serial_mxc.c                   |  6 +-
 drivers/serial/serial_octeon_bootcmd.c        |  2 +-
 drivers/serial/serial_octeon_pcie_console.c   |  4 +-
 drivers/serial/serial_pl01x.c                 |  8 +-
 drivers/serial/serial_sifive.c                |  2 +-
 drivers/serial/serial_zynq.c                  |  2 +-
 drivers/spi/mtk_snfi_spi.c                    |  2 +-
 drivers/spi/octeon_spi.c                      |  2 +-
 drivers/spi/stm32_qspi.c                      |  2 +-
 drivers/timer/mpc83xx_timer.c                 |  4 +-
 drivers/usb/eth/lan7x.h                       |  4 +-
 drivers/usb/gadget/f_acm.c                    |  4 +-
 drivers/usb/gadget/f_sdp.c                    |  4 +-
 drivers/usb/host/ehci-hcd.c                   |  2 +-
 drivers/usb/musb-new/musb_uboot.c             |  2 +-
 drivers/video/video_bmp.c                     |  4 +-
 drivers/watchdog/Kconfig                      |  2 +
 drivers/watchdog/wdt-uclass.c                 | 80 +++++++++++--------
 env/common.c                                  |  2 +-
 fs/cramfs/uncompress.c                        |  3 +-
 fs/jffs2/jffs2_1pass.c                        |  2 +-
 include/cyclic.h                              |  5 ++
 include/linux/compat.h                        |  2 +-
 include/wait_bit.h                            |  2 +-
 include/watchdog.h                            | 68 +---------------
 lib/bzip2/bzlib.c                             |  2 +-
 lib/bzip2/bzlib_decompress.c                  |  8 +-
 lib/crc32.c                                   |  2 +-
 lib/efi_loader/efi_boottime.c                 |  4 +-
 lib/gunzip.c                                  |  2 +-
 lib/lzma/LzmaDec.c                            | 16 ++--
 lib/lzma/LzmaTools.c                          |  2 +-
 lib/md5.c                                     |  2 +-
 lib/sha1.c                                    |  2 +-
 lib/sha256.c                                  |  2 +-
 lib/sha512.c                                  |  4 +-
 lib/time.c                                    |  2 +-
 lib/zlib/inflate.c                            |  8 +-
 net/net.c                                     |  2 +-
 post/cpu/mpc83xx/ecc.c                        |  2 +-
 post/drivers/memory.c                         | 36 ++++-----
 post/lib_powerpc/cpu.c                        | 16 ++--
 post/lib_powerpc/fpu/fpu.c                    |  4 +-
 post/post.c                                   |  4 +-
 test/common/cyclic.c                          |  2 +-
 test/dm/wdt.c                                 |  9 ++-
 110 files changed, 310 insertions(+), 339 deletions(-)

Cc: Joel Stanley <joel@jms.id.au>
Cc: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
-- 
2.37.2


             reply	other threads:[~2022-08-29  6:23 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-29  6:23 Stefan Roese [this message]
2022-08-29  6:23 ` [RFC PATCH 1/8] cmd/cyclic: Use div64 macros for division and remainder Stefan Roese
2022-08-30  2:31   ` Simon Glass
2022-08-29  6:23 ` [RFC PATCH 2/8] watchdog: Integrate watchdog triggering into the cyclic framework Stefan Roese
2022-08-29  7:38   ` Rasmus Villemoes
2022-08-29  8:09     ` Stefan Roese
2022-08-29  6:23 ` [RFC PATCH 3/8] cyclic: Introduce schedule() function Stefan Roese
2022-08-30  2:31   ` Simon Glass
2022-08-29  6:23 ` [RFC PATCH 4/8] cyclic: Use schedule() instead of WATCHDOG_RESET() Stefan Roese
2022-08-30  2:31   ` Simon Glass
2022-08-29  6:23 ` [RFC PATCH 5/8] watchdog: Get rid of ASSEMBLY hacks Stefan Roese
2022-08-29  7:50   ` Rasmus Villemoes
2022-08-29  8:31     ` Stefan Roese
2022-08-29  6:23 ` [RFC PATCH 6/8] watchdog: Remove WATCHDOG_RESET macro Stefan Roese
2022-08-30  2:31   ` Simon Glass
2022-08-29  6:23 ` [RFC PATCH 7/8] watchdog: Further cleanup Stefan Roese
2022-08-30  2:31   ` Simon Glass
2022-08-29  6:23 ` [RFC PATCH 8/8] WIP: .azure-pipelines.yml: Remove evb-ast2600 Stefan Roese
2022-09-02  4:09   ` Joel Stanley
2022-09-02  6:00     ` Joel Stanley
2022-09-02  6:14       ` Stefan Roese
2022-09-02  7:44         ` Stefan Roese

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