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/*

 * Copyright (C) 2005 Jakub Jermar

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - 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.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

 */

/** @addtogroup sparc64interrupt

 * @{

 */

/**

 * @file

 * @brief This file contains interrupt vector trap handler.

 */

#ifndef KERN_sparc64_TRAP_INTERRUPT_H_

#define KERN_sparc64_TRAP_INTERRUPT_H_

#include <arch/trap/trap_table.h>

#include <arch/stack.h>

/* IMAP register bits */

#define IGN_MASK    0x7c0

#define INO_MASK    0x1f

#define IMAP_V_MASK (1ULL << 31)

#define IGN_SHIFT   6

/* Interrupt ASI registers. */

#define ASI_UDB_INTR_W          0x77

#define ASI_INTR_DISPATCH_STATUS    0x48

#define ASI_UDB_INTR_R          0x7f

#define ASI_INTR_RECEIVE        0x49

/* VA's used with ASI_UDB_INTR_W register. */

#define ASI_UDB_INTR_W_DATA_0   0x40

#define ASI_UDB_INTR_W_DATA_1   0x50

#define ASI_UDB_INTR_W_DATA_2   0x60

#define ASI_UDB_INTR_W_DISPATCH 0x70

/* VA's used with ASI_UDB_INTR_R register. */

#define ASI_UDB_INTR_R_DATA_0   0x40

#define ASI_UDB_INTR_R_DATA_1   0x50

#define ASI_UDB_INTR_R_DATA_2   0x60

/* Shifts in the Interrupt Vector Dispatch virtual address. */

#define INTR_VEC_DISPATCH_MID_SHIFT 14

/* Bits in the Interrupt Dispatch Status register. */

#define INTR_DISPATCH_STATUS_NACK   0x2

#define INTR_DISPATCH_STATUS_BUSY   0x1

#define TT_INTERRUPT_LEVEL_1            0x41

#define TT_INTERRUPT_LEVEL_2            0x42

#define TT_INTERRUPT_LEVEL_3            0x43

#define TT_INTERRUPT_LEVEL_4            0x44

#define TT_INTERRUPT_LEVEL_5            0x45

#define TT_INTERRUPT_LEVEL_6            0x46

#define TT_INTERRUPT_LEVEL_7            0x47

#define TT_INTERRUPT_LEVEL_8            0x48

#define TT_INTERRUPT_LEVEL_9            0x49

#define TT_INTERRUPT_LEVEL_10           0x4a

#define TT_INTERRUPT_LEVEL_11           0x4b

#define TT_INTERRUPT_LEVEL_12           0x4c

#define TT_INTERRUPT_LEVEL_13           0x4d

#define TT_INTERRUPT_LEVEL_14           0x4e

#define TT_INTERRUPT_LEVEL_15           0x4f

#define TT_INTERRUPT_VECTOR_TRAP        0x60

#define INTERRUPT_LEVEL_N_HANDLER_SIZE      TRAP_TABLE_ENTRY_SIZE

#define INTERRUPT_VECTOR_TRAP_HANDLER_SIZE  TRAP_TABLE_ENTRY_SIZE

#ifdef __ASM__

.macro INTERRUPT_LEVEL_N_HANDLER n

    mov \n - 1, %g2

    PREEMPTIBLE_HANDLER exc_dispatch

.endm

.macro INTERRUPT_VECTOR_TRAP_HANDLER

    PREEMPTIBLE_HANDLER interrupt

.endm

#endif /* __ASM__ */

#ifndef __ASM__

extern void interrupt(int n, istate_t *istate);

#endif /* !def __ASM__ */

#endif

/** @}

 */