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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

 */

#ifndef KERN_sparc64_TRAP_TABLE_H_

#define KERN_sparc64_TRAP_TABLE_H_

#include <arch/stack.h>

#define TRAP_TABLE_ENTRY_COUNT  1024

#define TRAP_TABLE_ENTRY_SIZE   32

#define TRAP_TABLE_SIZE     (TRAP_TABLE_ENTRY_COUNT * TRAP_TABLE_ENTRY_SIZE)

#ifndef __ASM__

#include <arch/types.h>

struct trap_table_entry {

    uint8_t octets[TRAP_TABLE_ENTRY_SIZE];

} __attribute__ ((packed));

typedef struct trap_table_entry trap_table_entry_t;

extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT];

extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT];

#endif /* !__ASM__ */

#ifdef __ASM__

.macro SAVE_GLOBALS

    mov %g1, %l1

    mov %g2, %l2

    mov %g3, %l3

    mov %g4, %l4

    mov %g5, %l5

    mov %g6, %l6

    mov %g7, %l7

.endm

.macro RESTORE_GLOBALS

    mov %l1, %g1

    mov %l2, %g2

    mov %l3, %g3

    mov %l4, %g4

    mov %l5, %g5

    mov %l6, %g6

    mov %l7, %g7

.endm

/*

 * The following needs to be in sync with the definition of the istate

 * structure. The one STACK_ITEM_SIZE is counted for space holding the 7th

 * argument to syscall_handler (i.e. syscall number) and the other

 * STACK_ITEM_SIZE is counted because of the required alignment.

 */

#define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE    \

    (STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE + \

    (2 * STACK_ITEM_SIZE) + (12 * 8))

#define SAVED_TSTATE    -(1 * 8)

#define SAVED_TPC   -(2 * 8)

#define SAVED_TNPC  -(3 * 8)    /* <-- istate_t begins here */

#define SAVED_Y     -(4 * 8)

#define SAVED_I0    -(5 * 8)

#define SAVED_I1    -(6 * 8)

#define SAVED_I2    -(7 * 8)

#define SAVED_I3    -(8 * 8)

#define SAVED_I4    -(9 * 8)

#define SAVED_I5    -(10 * 8)

#define SAVED_I6    -(11 * 8)

#define SAVED_I7    -(12 * 8)

.macro PREEMPTIBLE_HANDLER f

    sethi %hi(\f), %g1

    ba %xcc, preemptible_handler

    or %g1, %lo(\f), %g1

.endm

#endif /* __ASM__ */

#endif

/** @}

 */