1 /* $NetBSD: plicreg.h,v 1.1 2023/05/07 12:41:48 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_PLICREG_H 33 #define _RISCV_PLICREG_H 34 35 #define PLIC_FIRST_IRQ 1 /* irq 0 is reserved */ 36 #define PLIC_MAX_IRQ 1023 37 #define PLIC_NIRQ (PLIC_MAX_IRQ + 1) 38 39 #define PLIC_PRIORITY_BASE 0x000000 40 #define PLIC_PENDING_BASE 0x001000 41 42 #define PLIC_ENABLE_BASE 0x002000 43 #define PLIC_ENABLE_SIZE (PLIC_NIRQ / NBBY) 44 45 #define PLIC_CONTEXT_BASE 0x200000 46 #define PLIC_CONTEXT_SIZE 0x1000 47 #define PLIC_MAX_CONTEXT 15871 48 #define PLIC_NCONTEXT (PLIC_MAX_CONTEXT + 1) 49 #define PLIC_THRESHOLD_OFFS 0 50 #define PLIC_CLAIM_COMPLETE_OFFS 4 /* read to claim, write to complete */ 51 52 #endif /* _RISCV_PLICREG_H */ 53