/* $NetBSD: plicreg.h,v 1.1 2023/05/07 12:41:48 skrll Exp $ */

/*-
* Copyright (c) 2022 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Portions of this code is derived from software contributed to The NetBSD
* Foundation by Simon Burge.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _RISCV_PLICREG_H
#define _RISCV_PLICREG_H

#define PLIC_FIRST_IRQ          1       /* irq 0 is reserved */
#define PLIC_MAX_IRQ            1023
#define PLIC_NIRQ               (PLIC_MAX_IRQ + 1)

#define PLIC_PRIORITY_BASE      0x000000
#define PLIC_PENDING_BASE       0x001000

#define PLIC_ENABLE_BASE        0x002000
#define PLIC_ENABLE_SIZE        (PLIC_NIRQ / NBBY)

#define PLIC_CONTEXT_BASE       0x200000
#define PLIC_CONTEXT_SIZE       0x1000
#define PLIC_MAX_CONTEXT        15871
#define PLIC_NCONTEXT           (PLIC_MAX_CONTEXT + 1)
#define PLIC_THRESHOLD_OFFS       0
#define PLIC_CLAIM_COMPLETE_OFFS  4     /* read to claim, write to complete */

#endif /* _RISCV_PLICREG_H */