/*      $OpenBSD: bonito_irq.h,v 1.2 2010/05/08 21:59:56 miod Exp $     */

/*
 * Copyright (c) 2009, 2010 Miodrag Vallat.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * Bonito interrupt assignments
 */

/*
 * Loongson 2F assignments
 */

#define LOONGSON_INTR_GPIO0             0
#define LOONGSON_INTR_GPIO1             1
#define LOONGSON_INTR_GPIO2             2
#define LOONGSON_INTR_GPIO3             3

/* pci interrupts */
#define LOONGSON_INTR_PCIA              4
#define LOONGSON_INTR_PCIB              5
#define LOONGSON_INTR_PCIC              6
#define LOONGSON_INTR_PCID              7

#define LOONGSON_INTR_PCI_PARERR        8
#define LOONGSON_INTR_PCI_SYSERR        9
#define LOONGSON_INTR_DRAM_PARERR       10

/* non-PCI interrupts */
#define LOONGSON_INTR_INT0              11
#define LOONGSON_INTR_INT1              12
#define LOONGSON_INTR_INT2              13
#define LOONGSON_INTR_INT3              14

#define LOONGSON_INTRMASK_GPIO0         0x00000001      /* can't interrupt */
#define LOONGSON_INTRMASK_GPIO1         0x00000002
#define LOONGSON_INTRMASK_GPIO2         0x00000004
#define LOONGSON_INTRMASK_GPIO3         0x00000008

#define LOONGSON_INTRMASK_GPIO          0x0000000f

/* pci interrupts */
#define LOONGSON_INTRMASK_PCIA          0x00000010
#define LOONGSON_INTRMASK_PCIB          0x00000020
#define LOONGSON_INTRMASK_PCIC          0x00000040
#define LOONGSON_INTRMASK_PCID          0x00000080

#define LOONGSON_INTRMASK_PCI_PARERR    0x00000100
#define LOONGSON_INTRMASK_PCI_SYSERR    0x00000200
#define LOONGSON_INTRMASK_DRAM_PARERR   0x00000400

/* non-PCI interrupts */
#define LOONGSON_INTRMASK_INT0          0x00000800
#define LOONGSON_INTRMASK_INT1          0x00001000
#define LOONGSON_INTRMASK_INT2          0x00002000
#define LOONGSON_INTRMASK_INT3          0x00004000

#define LOONGSON_INTRMASK_LVL0          0x00007800 /* not maskable in bonito */
#define LOONGSON_INTRMASK_LVL4          0x000007ff

/*
 * Loongson 2E (Bonito64) assignments
 */

#define BONITO_INTRMASK_MBOX            0x0000000f
#define BONITO_INTR_MBOX                0
#define BONITO_INTRMASK_DMARDY          0x00000010
#define BONITO_INTRMASK_DMAEMPTY        0x00000020
#define BONITO_INTRMASK_COPYRDY         0x00000040
#define BONITO_INTRMASK_COPYEMPTY       0x00000080
#define BONITO_INTRMASK_COPYERR         0x00000100
#define BONITO_INTRMASK_PCIIRQ          0x00000200
#define BONITO_INTRMASK_MASTERERR       0x00000400
#define BONITO_INTRMASK_SYSTEMERR       0x00000800
#define BONITO_INTRMASK_DRAMPERR        0x00001000
#define BONITO_INTRMASK_RETRYERR        0x00002000
#define BONITO_INTRMASK_GPIO            0x01ff0000
#define BONITO_INTR_GPIO                16
#define BONITO_INTRMASK_GPIN            0x7e000000
#define BONITO_INTR_GPIN                25

/*
 * Bonito interrupt handling recipes:
 * - we have up to 32 interrupts at the Bonito level.
 * - systems with ISA devices also have 16 (well, 15) ISA interrupts with the
 *   usual 8259 pair. Bonito and ISA interrupts happen on two different levels.
 *
 * These arbitrary values may be changed as long as interrupt mask variables
 * use large enough integer types and always use the following macros to
 * handle interrupt masks.
 */

#define INTPRI_BONITO           (INTPRI_CLOCK + 1)
#define INTPRI_ISA              (INTPRI_BONITO + 1)

#define BONITO_NDIRECT          32
#define BONITO_NISA             16
#define BONITO_NINTS            (BONITO_NDIRECT + BONITO_NISA)
#define BONITO_ISA_IRQ(i)       ((i) + BONITO_NDIRECT)
#define BONITO_DIRECT_IRQ(i)    (i)
#define BONITO_IRQ_IS_ISA(i)    ((i) >= BONITO_NDIRECT)
#define BONITO_IRQ_TO_ISA(i)    ((i) - BONITO_NDIRECT)

#define BONITO_DIRECT_MASK(imask)       ((imask) & ((1L << BONITO_NDIRECT) - 1))
#define BONITO_ISA_MASK(imask)          ((imask) >> BONITO_NDIRECT)

extern struct intrhand *bonito_intrhand[BONITO_NINTS];
extern uint64_t bonito_intem;
extern uint64_t bonito_imask[NIPLS];