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.
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/cyclic-v5...
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 (6): 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
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/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 | 73 +++++++++++-------- env/common.c | 2 +- fs/cramfs/uncompress.c | 3 +- fs/jffs2/jffs2_1pass.c | 2 +- include/cyclic.h | 12 +++ 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 ++- 108 files changed, 306 insertions(+), 333 deletions(-)