2 * Copyright (C) 1994 - 2000, 2001, 2003 Ralf Baechle
3 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
4 * Copyright (C) 2002, 2007 Maciej W. Rozycki
5 * Copyright (C) 2001, 2012 MIPS Technologies, Inc. All rights reserved.
7 * SPDX-License-Identifier: GPL-2.0+
11 #include <asm/regdef.h>
12 #include <asm/mipsregs.h>
13 #include <asm/asm-offsets.h>
20 * Macros copied and adapted from Linux MIPS
30 #if __mips_isa_rev < 6
37 LONG_S $10, PT_R10(sp)
38 LONG_S $11, PT_R11(sp)
39 LONG_S $12, PT_R12(sp)
40 #if __mips_isa_rev < 6
44 LONG_S $13, PT_R13(sp)
45 LONG_S $14, PT_R14(sp)
46 LONG_S $15, PT_R15(sp)
47 LONG_S $24, PT_R24(sp)
48 #if __mips_isa_rev < 6
54 LONG_S $16, PT_R16(sp)
55 LONG_S $17, PT_R17(sp)
56 LONG_S $18, PT_R18(sp)
57 LONG_S $19, PT_R19(sp)
58 LONG_S $20, PT_R20(sp)
59 LONG_S $21, PT_R21(sp)
60 LONG_S $22, PT_R22(sp)
61 LONG_S $23, PT_R23(sp)
62 LONG_S $30, PT_R30(sp)
68 PTR_SUBU k1, sp, PT_SIZE
76 LONG_S v1, PT_STATUS(sp)
80 LONG_S v1, PT_CAUSE(sp)
89 LONG_S $25, PT_R25(sp)
90 LONG_S $28, PT_R28(sp)
91 LONG_S $31, PT_R31(sp)
103 #if __mips_isa_rev < 6
104 LONG_L $24, PT_LO(sp)
106 LONG_L $24, PT_HI(sp)
113 LONG_L $10, PT_R10(sp)
114 LONG_L $11, PT_R11(sp)
115 LONG_L $12, PT_R12(sp)
116 LONG_L $13, PT_R13(sp)
117 LONG_L $14, PT_R14(sp)
118 LONG_L $15, PT_R15(sp)
119 LONG_L $24, PT_R24(sp)
122 .macro RESTORE_STATIC
123 LONG_L $16, PT_R16(sp)
124 LONG_L $17, PT_R17(sp)
125 LONG_L $18, PT_R18(sp)
126 LONG_L $19, PT_R19(sp)
127 LONG_L $20, PT_R20(sp)
128 LONG_L $21, PT_R21(sp)
129 LONG_L $22, PT_R22(sp)
130 LONG_L $23, PT_R23(sp)
131 LONG_L $30, PT_R30(sp)
142 li v1, ST0_CU1 | ST0_FR | ST0_IM
144 LONG_L v0, PT_STATUS(sp)
149 LONG_L v1, PT_EPC(sp)
151 LONG_L $31, PT_R31(sp)
152 LONG_L $28, PT_R28(sp)
153 LONG_L $25, PT_R25(sp)
168 LONG_L sp, PT_R29(sp)
171 NESTED(except_vec3_generic, 0, sp)
172 PTR_LA k1, handle_reserved
175 END(except_vec3_generic)
177 NESTED(except_vec_ejtag_debug, 0, sp)
178 PTR_LA k1, handle_ejtag_debug
181 END(except_vec_ejtag_debug)
183 NESTED(handle_reserved, PT_SIZE, sp)
189 PTR_LA t9, do_reserved
194 NESTED(handle_ejtag_debug, PT_SIZE, sp)
199 /* Check for SDBBP */
202 bgez k1, ejtag_return
210 PTR_LA t9, do_ejtag_debug
224 END(handle_ejtag_debug)