omap_rproc_watchdog_isr(9)

💖 NAME 💖

okay so bestie, this is the omap_rproc_watchdog_isr(9) page from the Kernel API Manual 🎀✨ and it's literally the watchdog ISR handler for a remoteproc device.

omap_rproc_watchdog_isr - Watchdog ISR handler for remoteproc device 💅

✨ SYNOPSIS ✨

irqreturn_t omap_rproc_watchdog_isr (int irq , void *data );

🎀 ARGUMENTS 🎀

• irq — IRQ number associated with a watchdog timer 🔥
• data — IRQ handler data 🫶

🦋 DESCRIPTION 🦋

okay so this ISR routine is the one running the required necessary low-level code to acknowledge a watchdog timer interrupt, no cap 🫶. a rproc can have multiple watchdog timers associated with it (like IPUs which have 2 watchdog timers, one per Cortex M3/M4 core), so a lookup has to be performed to identify the timer to acknowledge its interrupt. it's giving "which timer is this? bestie, we need to know" 😭

the function also invokes rproc_report_crash to report the watchdog event to the remoteproc driver core, to trigger a recovery. so it's not just a vibe check — it reports the watchdog event and kicks off recovery 🔥 periodt.

🌸 RETURN 🌸

IRQ_HANDLED on success, otherwise IRQ_NONE 💖

💅 SEE ALSO 💅

the Kernel file is ./drivers/remoteproc/omap_remoteproc.c 🫶 and the whole friend group is:

• struct omap_rproc_boot_data(9)
• struct omap_rproc_mem(9)
• struct omap_rproc_timer(9)
• struct omap_rproc(9)
• struct omap_rproc_mem_data(9)
• struct omap_rproc_dev_data(9)
• omap_rproc_request_timer(9)
• omap_rproc_start_timer(9)
• omap_rproc_stop_timer(9)
• omap_rproc_release_timer(9)
• omap_rproc_get_timer_irq(9)
• omap_rproc_ack_timer_irq(9)
• omap_rproc_enable_timers(9)
• omap_rproc_disable_timers(9)
• omap_rproc_mbox_callback(9)
• omap_rproc_write_dsp_boot_addr(9)
• omap_rproc_da_to_va(9)

sending all my love from ./drivers/remoteproc, dated October 2026 — omap_rproc_watchdog_isr(9) from the Kernel API Manual, out 💅✨