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root/kernel/arch/sparc64/include/arch/trap/regwin.h

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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 kernel_sparc64_interrupt
 * @{
 */
/**
 * @file
 * @brief This file contains register window trap handlers.
 */

#ifndef KERN_sparc64_REGWIN_H_
#define KERN_sparc64_REGWIN_H_

#include <arch/stack.h>
#include <arch/arch.h>
#include <align.h>

#define TT_CLEAN_WINDOW                 0x24
#define TT_SPILL_0_NORMAL               0x80    /* kernel spills */
#define TT_SPILL_1_NORMAL               0x84    /* userspace spills */
#define TT_SPILL_2_NORMAL               0x88    /* spills to userspace window buffer */
#define TT_SPILL_0_OTHER                0xa0    /* spills to userspace window buffer */
#define TT_FILL_0_NORMAL                0xc0    /* kernel fills */
#define TT_FILL_1_NORMAL                0xc4    /* userspace fills */

#define REGWIN_HANDLER_SIZE             128

#define CLEAN_WINDOW_HANDLER_SIZE       REGWIN_HANDLER_SIZE
#define SPILL_HANDLER_SIZE              REGWIN_HANDLER_SIZE
#define FILL_HANDLER_SIZE               REGWIN_HANDLER_SIZE

/* Window Save Area offsets. */
#define L0_OFFSET       0
#define L1_OFFSET       8
#define L2_OFFSET       16
#define L3_OFFSET       24
#define L4_OFFSET       32
#define L5_OFFSET       40
#define L6_OFFSET       48
#define L7_OFFSET       56
#define I0_OFFSET       64
#define I1_OFFSET       72
#define I2_OFFSET       80
#define I3_OFFSET       88
#define I4_OFFSET       96
#define I5_OFFSET       104
#define I6_OFFSET       112
#define I7_OFFSET       120

/* Uspace Window Buffer constants. */
#define UWB_SIZE        ((NWINDOWS - 1) * STACK_WINDOW_SAVE_AREA_SIZE)
#define UWB_ALIGNMENT   1024

#ifdef __ASSEMBLER__
#include <arch/trap/regwin.S>
#endif /* __ASSEMBLER__ */

#if defined(SUN4U)
#include <arch/trap/sun4u/regwin.h>
#elif defined(SUN4V)
#include <arch/trap/sun4v/regwin.h>
#endif

#endif

/** @}
 */

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