k3_rproc_mbox_callback(9)

💖 NAME 💖

okay so bestie, meet k3_rproc_mbox_callback(9) from the Kernel API Manual — literally the inbound mailbox message handler. 🎀 it’s giving “the mailbox said something, and this function handles the vibe.” no cap.

✨ SYNOPSIS ✨

void k3_rproc_mbox_callback (struct mbox_client *client , void *data );

🦋 ARGUMENTS 🦋

• client — mailbox client pointer used for requesting the mailbox channel. it’s the lil handle for the channel request, periodt.
• data — mailbox payload. the actual message stuff, bestie.

🌸 DESCRIPTION 🌸

This handler is invoked by the K3 mailbox driver whenever a mailbox message is received. 💌 Usually, the mailbox payload simply contains the index of the virtqueue that is kicked by the remote processor, and we let remoteproc core handle it. slay, delegation.

In addition to virtqueue indices, we also have some out-of-band values that indicate different events. Those values are deliberately very large so they don’t coincide with virtqueue indices. 👑 iykyk — big numbers, no collisions.

🧚 SEE ALSO 🧚

• Kernel file ./drivers/remoteproc/ti_k3_common.c

okay that’s the whole page, bestie — the source/version footer corner is ./drivers/remoteproc, and the date stamp is October 2026. mwah 💋