1 /* $NetBSD: plicvar.h,v 1.2 2023/09/02 09:58:15 skrll Exp $ */ 2 3 /*- 4 * Copyright (c) 2022 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Portions of this code is derived from software contributed to The NetBSD 8 * Foundation by Simon Burge. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _RISCV_PLICVAR_H 33 #define _RISCV_PLICVAR_H 34 35 struct plic_intrhand { 36 int (*ih_func)(void *); 37 void *ih_arg; 38 bool ih_mpsafe; 39 u_int ih_irq; 40 u_int ih_hartid; 41 }; 42 43 struct plic_softc { 44 device_t sc_dev; 45 bus_space_tag_t sc_bst; 46 bus_space_handle_t sc_bsh; 47 48 uint32_t sc_ndev; 49 50 uint32_t sc_context[MAXCPUS]; 51 struct plic_intrhand *sc_intr; 52 struct evcnt *sc_intrevs; 53 }; 54 55 56 int plic_intr(void *); 57 void plic_enable(struct plic_softc *, u_int, u_int); 58 void plic_disable(struct plic_softc *, u_int, u_int); 59 void plic_set_priority(struct plic_softc *, u_int, uint32_t); 60 void plic_set_threshold(struct plic_softc *, cpuid_t, uint32_t); 61 int plic_attach_common(struct plic_softc *, bus_addr_t, bus_size_t); 62 63 void * plic_intr_establish_xname(u_int, int, int, int (*)(void *), void *, 64 const char *); 65 void plic_intr_disestablish(void *); 66 67 68 #endif /* _RISCV_PLICVAR_H */ 69