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529 jermar 1
/*
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 * Copyright (c) 2005 Jakub Jermar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup sparc64interrupt
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 * @{
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 */
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/** @file
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 */
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#ifndef KERN_sparc64_TRAP_TABLE_H_
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#define KERN_sparc64_TRAP_TABLE_H_
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#include <arch/stack.h>
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#define TRAP_TABLE_ENTRY_COUNT  1024
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#define TRAP_TABLE_ENTRY_SIZE   32
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#define TRAP_TABLE_SIZE     (TRAP_TABLE_ENTRY_COUNT * TRAP_TABLE_ENTRY_SIZE)
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#ifndef __ASM__
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#include <arch/types.h>
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struct trap_table_entry {
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    uint8_t octets[TRAP_TABLE_ENTRY_SIZE];
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} __attribute__ ((packed));
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typedef struct trap_table_entry trap_table_entry_t;
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extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT];
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extern trap_table_entry_t trap_table_save[TRAP_TABLE_ENTRY_COUNT];
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#endif /* !__ASM__ */
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#ifdef __ASM__
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.macro SAVE_GLOBALS
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    mov %g1, %l1
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    mov %g2, %l2
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    mov %g3, %l3
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    mov %g4, %l4
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    mov %g5, %l5
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    mov %g6, %l6
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    mov %g7, %l7
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.endm
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.macro RESTORE_GLOBALS
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    mov %l1, %g1
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    mov %l2, %g2
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    mov %l3, %g3
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    mov %l4, %g4
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    mov %l5, %g5
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    mov %l6, %g6
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    mov %l7, %g7
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.endm
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/*
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 * The following needs to be in sync with the definition of the istate
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 * structure. The one STACK_ITEM_SIZE is counted for space holding the 7th
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 * argument to syscall_handler (i.e. syscall number) and the other
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 * STACK_ITEM_SIZE is counted because of the required alignment.
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 */
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#define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE    \
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    (STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE + \
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    (2 * STACK_ITEM_SIZE) + (12 * 8))
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#define SAVED_TSTATE    -(1 * 8)
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#define SAVED_TPC   -(2 * 8)
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#define SAVED_TNPC  -(3 * 8)    /* <-- istate_t begins here */
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#define SAVED_Y     -(4 * 8)
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#define SAVED_I0    -(5 * 8)
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#define SAVED_I1    -(6 * 8)
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#define SAVED_I2    -(7 * 8)
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#define SAVED_I3    -(8 * 8)
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#define SAVED_I4    -(9 * 8)
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#define SAVED_I5    -(10 * 8)
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#define SAVED_I6    -(11 * 8)
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#define SAVED_I7    -(12 * 8)
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.macro PREEMPTIBLE_HANDLER f
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    sethi %hi(\f), %g1
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    ba %xcc, preemptible_handler
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    or %g1, %lo(\f), %g1
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.endm
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#endif /* __ASM__ */
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#endif
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/** @}
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 */