/* 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;
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