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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 register window trap handlers.
*/
#ifndef KERN_sparc64_REGWIN_H_
#define KERN_sparc64_REGWIN_H_
#include <arch/stack.h>
#include <arch/arch.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
#ifdef __ASM__
/*
* Macro used by the nucleus and the primary context 0 during normal and other spills.
*/
.macro SPILL_NORMAL_HANDLER_KERNEL
stx %l0, [%sp + STACK_BIAS + L0_OFFSET]
stx %l1, [%sp + STACK_BIAS + L1_OFFSET]
stx %l2, [%sp + STACK_BIAS + L2_OFFSET]
stx %l3, [%sp + STACK_BIAS + L3_OFFSET]
stx %l4, [%sp + STACK_BIAS + L4_OFFSET]
stx %l5, [%sp + STACK_BIAS + L5_OFFSET]
stx %l6, [%sp + STACK_BIAS + L6_OFFSET]
stx %l7, [%sp + STACK_BIAS + L7_OFFSET]
stx %i0, [%sp + STACK_BIAS + I0_OFFSET]
stx %i1, [%sp + STACK_BIAS + I1_OFFSET]
stx %i2, [%sp + STACK_BIAS + I2_OFFSET]
stx %i3, [%sp + STACK_BIAS + I3_OFFSET]
stx %i4, [%sp + STACK_BIAS + I4_OFFSET]
stx %i5, [%sp + STACK_BIAS + I5_OFFSET]
stx %i6, [%sp + STACK_BIAS + I6_OFFSET]
stx %i7, [%sp + STACK_BIAS + I7_OFFSET]
saved
retry
.endm
/*
* Macro used by the userspace during normal spills.
*/
.macro SPILL_NORMAL_HANDLER_USERSPACE
wr %g0, ASI_AIUP, %asi
stxa %l0, [%sp + STACK_BIAS + L0_OFFSET] %asi
stxa %l1, [%sp + STACK_BIAS + L1_OFFSET] %asi
stxa %l2, [%sp + STACK_BIAS + L2_OFFSET] %asi
stxa %l3, [%sp + STACK_BIAS + L3_OFFSET] %asi
stxa %l4, [%sp + STACK_BIAS + L4_OFFSET] %asi
stxa %l5, [%sp + STACK_BIAS + L5_OFFSET] %asi
stxa %l6, [%sp + STACK_BIAS + L6_OFFSET] %asi
stxa %l7, [%sp + STACK_BIAS + L7_OFFSET] %asi
stxa %i0, [%sp + STACK_BIAS + I0_OFFSET] %asi
stxa %i1, [%sp + STACK_BIAS + I1_OFFSET] %asi
stxa %i2, [%sp + STACK_BIAS + I2_OFFSET] %asi
stxa %i3, [%sp + STACK_BIAS + I3_OFFSET] %asi
stxa %i4, [%sp + STACK_BIAS + I4_OFFSET] %asi
stxa %i5, [%sp + STACK_BIAS + I5_OFFSET] %asi
stxa %i6, [%sp + STACK_BIAS + I6_OFFSET] %asi
stxa %i7, [%sp + STACK_BIAS + I7_OFFSET] %asi
saved
retry
.endm
/*
* Macro used to spill userspace window to userspace window buffer.
* It can be either triggered from preemptible_handler doing SAVE
* at (TL=1) or from normal kernel code doing SAVE when OTHERWIN>0
* at (TL=0).
*/
.macro SPILL_TO_USPACE_WINDOW_BUFFER
stx %l0, [%g7 + L0_OFFSET]
stx %l1, [%g7 + L1_OFFSET]
stx %l2, [%g7 + L2_OFFSET]
stx %l3, [%g7 + L3_OFFSET]
stx %l4, [%g7 + L4_OFFSET]
stx %l5, [%g7 + L5_OFFSET]
stx %l6, [%g7 + L6_OFFSET]
stx %l7, [%g7 + L7_OFFSET]
stx %i0, [%g7 + I0_OFFSET]
stx %i1, [%g7 + I1_OFFSET]
stx %i2, [%g7 + I2_OFFSET]
stx %i3, [%g7 + I3_OFFSET]
stx %i4, [%g7 + I4_OFFSET]
stx %i5, [%g7 + I5_OFFSET]
stx %i6, [%g7 + I6_OFFSET]
stx %i7, [%g7 + I7_OFFSET]
add %g7, STACK_WINDOW_SAVE_AREA_SIZE, %g7
saved
retry
.endm
/*
* Macro used by the nucleus and the primary context 0 during normal fills.
*/
.macro FILL_NORMAL_HANDLER_KERNEL
ldx [%sp + STACK_BIAS + L0_OFFSET], %l0
ldx [%sp + STACK_BIAS + L1_OFFSET], %l1
ldx [%sp + STACK_BIAS + L2_OFFSET], %l2
ldx [%sp + STACK_BIAS + L3_OFFSET], %l3
ldx [%sp + STACK_BIAS + L4_OFFSET], %l4
ldx [%sp + STACK_BIAS + L5_OFFSET], %l5
ldx [%sp + STACK_BIAS + L6_OFFSET], %l6
ldx [%sp + STACK_BIAS + L7_OFFSET], %l7
ldx [%sp + STACK_BIAS + I0_OFFSET], %i0
ldx [%sp + STACK_BIAS + I1_OFFSET], %i1
ldx [%sp + STACK_BIAS + I2_OFFSET], %i2
ldx [%sp + STACK_BIAS + I3_OFFSET], %i3
ldx [%sp + STACK_BIAS + I4_OFFSET], %i4
ldx [%sp + STACK_BIAS + I5_OFFSET], %i5
ldx [%sp + STACK_BIAS + I6_OFFSET], %i6
ldx [%sp + STACK_BIAS + I7_OFFSET], %i7
restored
retry
.endm
/*
* Macro used by the userspace during normal fills.
*/
.macro FILL_NORMAL_HANDLER_USERSPACE
wr %g0, ASI_AIUP, %asi
ldxa [%sp + STACK_BIAS + L0_OFFSET] %asi, %l0
ldxa [%sp + STACK_BIAS + L1_OFFSET] %asi, %l1
ldxa [%sp + STACK_BIAS + L2_OFFSET] %asi, %l2
ldxa [%sp + STACK_BIAS + L3_OFFSET] %asi, %l3
ldxa [%sp + STACK_BIAS + L4_OFFSET] %asi, %l4
ldxa [%sp + STACK_BIAS + L5_OFFSET] %asi, %l5
ldxa [%sp + STACK_BIAS + L6_OFFSET] %asi, %l6
ldxa [%sp + STACK_BIAS + L7_OFFSET] %asi, %l7
ldxa [%sp + STACK_BIAS + I0_OFFSET] %asi, %i0
ldxa [%sp + STACK_BIAS + I1_OFFSET] %asi, %i1
ldxa [%sp + STACK_BIAS + I2_OFFSET] %asi, %i2
ldxa [%sp + STACK_BIAS + I3_OFFSET] %asi, %i3
ldxa [%sp + STACK_BIAS + I4_OFFSET] %asi, %i4
ldxa [%sp + STACK_BIAS + I5_OFFSET] %asi, %i5
ldxa [%sp + STACK_BIAS + I6_OFFSET] %asi, %i6
ldxa [%sp + STACK_BIAS + I7_OFFSET] %asi, %i7
restored
retry
.endm
.macro CLEAN_WINDOW_HANDLER
rdpr %cleanwin, %l0
add %l0, 1, %l0
wrpr %l0, 0, %cleanwin
mov %r0, %l0
mov %r0, %l1
mov %r0, %l2
mov %r0, %l3
mov %r0, %l4
mov %r0, %l5
mov %r0, %l6
mov %r0, %l7
mov %r0, %o0
mov %r0, %o1
mov %r0, %o2
mov %r0, %o3
mov %r0, %o4
mov %r0, %o5
mov %r0, %o6
mov %r0, %o7
retry
.endm
#endif /* __ASM__ */
#endif
/** @}
*/