/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ /* * PRUSS Remote Processor specific types * * Copyright (C) 2014-2020 Texas Instruments Incorporated - https://www.ti.com/ * Suman Anna <s-anna@ti.com> */ #ifndef _PRU_RPROC_H_ #define _PRU_RPROC_H_ /** * struct pruss_int_map - PRU system events _to_ channel and host mapping * @event: number of the system event * @chnl: channel number assigned to a given @event * @host: host number assigned to a given @chnl * * PRU system events are mapped to channels, and these channels are mapped * to host interrupts. Events can be mapped to channels in a one-to-one or * many-to-one ratio (multiple events per channel), and channels can be * mapped to host interrupts in a one-to-one or many-to-one ratio (multiple * channels per interrupt). */ struct pruss_int_map { u8 event; u8 chnl; u8 host; }; /** * struct pru_irq_rsc - PRU firmware section header for IRQ data * @type: resource type * @num_evts: number of described events * @pru_intc_map: PRU interrupt routing description * * The PRU firmware blob can contain optional .pru_irq_map ELF section, which * provides the PRUSS interrupt mapping description. The pru_irq_rsc struct * describes resource entry format. */ struct pru_irq_rsc { u8 type; u8 num_evts; struct pruss_int_map pru_intc_map[]; } __packed; #endif /* _PRU_RPROC_H_ */