| 1 | /*
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| 2 | * Copyright (C) 2005 Jakub Jermar
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /**
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| 30 | * This file contains register window trap handlers.
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| 31 | */
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| 32 |
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| 33 | #ifndef __sparc64_REGWIN_H__
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| 34 | #define __sparc64_REGWIN_H__
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| 35 |
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| 36 | #include <arch/stack.h>
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| 37 |
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| 38 | #define TT_CLEAN_WINDOW 0x24
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| 39 | #define TT_SPILL_0_NORMAL 0x80
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| 40 | #define TT_FILL_0_NORMAL 0xc0
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| 41 |
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| 42 | #define REGWIN_HANDLER_SIZE 128
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| 43 |
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| 44 | #define CLEAN_WINDOW_HANDLER_SIZE REGWIN_HANDLER_SIZE
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| 45 | #define SPILL_HANDLER_SIZE REGWIN_HANDLER_SIZE
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| 46 | #define FILL_HANDLER_SIZE REGWIN_HANDLER_SIZE
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| 47 |
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| 48 | /** Window Save Area offsets. */
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| 49 | #define L0_OFFSET 0
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| 50 | #define L1_OFFSET 8
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| 51 | #define L2_OFFSET 16
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| 52 | #define L3_OFFSET 24
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| 53 | #define L4_OFFSET 32
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| 54 | #define L5_OFFSET 40
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| 55 | #define L6_OFFSET 48
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| 56 | #define L7_OFFSET 56
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| 57 | #define I0_OFFSET 64
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| 58 | #define I1_OFFSET 72
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| 59 | #define I2_OFFSET 80
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| 60 | #define I3_OFFSET 88
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| 61 | #define I4_OFFSET 96
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| 62 | #define I5_OFFSET 104
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| 63 | #define I6_OFFSET 112
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| 64 | #define I7_OFFSET 120
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| 65 |
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| 66 | #ifdef __ASM__
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| 67 | .macro SPILL_NORMAL_HANDLER
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| 68 | stx %l0, [%sp + STACK_BIAS + L0_OFFSET]
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| 69 | stx %l1, [%sp + STACK_BIAS + L1_OFFSET]
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| 70 | stx %l2, [%sp + STACK_BIAS + L2_OFFSET]
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| 71 | stx %l3, [%sp + STACK_BIAS + L3_OFFSET]
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| 72 | stx %l4, [%sp + STACK_BIAS + L4_OFFSET]
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| 73 | stx %l5, [%sp + STACK_BIAS + L5_OFFSET]
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| 74 | stx %l6, [%sp + STACK_BIAS + L6_OFFSET]
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| 75 | stx %l7, [%sp + STACK_BIAS + L7_OFFSET]
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| 76 | stx %i0, [%sp + STACK_BIAS + I0_OFFSET]
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| 77 | stx %i1, [%sp + STACK_BIAS + I1_OFFSET]
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| 78 | stx %i2, [%sp + STACK_BIAS + I2_OFFSET]
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| 79 | stx %i3, [%sp + STACK_BIAS + I3_OFFSET]
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| 80 | stx %i4, [%sp + STACK_BIAS + I4_OFFSET]
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| 81 | stx %i5, [%sp + STACK_BIAS + I5_OFFSET]
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| 82 | stx %i6, [%sp + STACK_BIAS + I6_OFFSET]
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| 83 | stx %i7, [%sp + STACK_BIAS + I7_OFFSET]
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| 84 | saved
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| 85 | retry
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| 86 | .endm
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| 87 |
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| 88 | .macro FILL_NORMAL_HANDLER
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| 89 | ldx [%sp + STACK_BIAS + L0_OFFSET], %l0
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| 90 | ldx [%sp + STACK_BIAS + L1_OFFSET], %l1
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| 91 | ldx [%sp + STACK_BIAS + L2_OFFSET], %l2
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| 92 | ldx [%sp + STACK_BIAS + L3_OFFSET], %l3
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| 93 | ldx [%sp + STACK_BIAS + L4_OFFSET], %l4
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| 94 | ldx [%sp + STACK_BIAS + L5_OFFSET], %l5
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| 95 | ldx [%sp + STACK_BIAS + L6_OFFSET], %l6
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| 96 | ldx [%sp + STACK_BIAS + L7_OFFSET], %l7
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| 97 | ldx [%sp + STACK_BIAS + I0_OFFSET], %i0
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| 98 | ldx [%sp + STACK_BIAS + I1_OFFSET], %i1
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| 99 | ldx [%sp + STACK_BIAS + I2_OFFSET], %i2
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| 100 | ldx [%sp + STACK_BIAS + I3_OFFSET], %i3
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| 101 | ldx [%sp + STACK_BIAS + I4_OFFSET], %i4
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| 102 | ldx [%sp + STACK_BIAS + I5_OFFSET], %i5
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| 103 | ldx [%sp + STACK_BIAS + I6_OFFSET], %i6
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| 104 | ldx [%sp + STACK_BIAS + I7_OFFSET], %i7
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| 105 | restored
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| 106 | retry
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| 107 | .endm
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| 108 |
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| 109 | .macro CLEAN_WINDOW_HANDLER
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| 110 | rdpr %cleanwin, %l0
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| 111 | add %l0, 1, %l0
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| 112 | wrpr %l0, 0, %cleanwin
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| 113 | mov %r0, %l0
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| 114 | mov %r0, %l1
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| 115 | mov %r0, %l2
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| 116 | mov %r0, %l3
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| 117 | mov %r0, %l4
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| 118 | mov %r0, %l5
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| 119 | mov %r0, %l6
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| 120 | mov %r0, %l7
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| 121 | mov %r0, %i0
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| 122 | mov %r0, %i1
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| 123 | mov %r0, %i2
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| 124 | mov %r0, %i3
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| 125 | mov %r0, %i4
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| 126 | mov %r0, %i5
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| 127 | retry
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| 128 | .endm
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| 129 | #endif /* __ASM__ */
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| 130 |
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| 131 | #endif
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