/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1994, 95, 96, 99, 2001 Ralf Baechle * Copyright (C) 1994, 1995, 1996 Paul M. Antoine. * Copyright (C) 1999 Silicon Graphics, Inc. * Copyright (C) 2007 Maciej W. Rozycki */ #ifndef _ASM_STACKFRAME_H #define _ASM_STACKFRAME_H #include <asm/asm.h> #include <asm/mipsregs.h> #include <asm/asm-offsets.h> .macro SAVE_AT .set push .set noat LONG_S $1, PT_R1(sp) .set pop .endm .macro SAVE_TEMP mfhi v1 #ifdef CONFIG_32BIT LONG_S $8, PT_R8(sp) LONG_S $9, PT_R9(sp) #endif LONG_S $10, PT_R10(sp) LONG_S $11, PT_R11(sp) LONG_S $12, PT_R12(sp) LONG_S v1, PT_HI(sp) mflo v1 LONG_S $13, PT_R13(sp) LONG_S $14, PT_R14(sp) LONG_S $15, PT_R15(sp) LONG_S $24, PT_R24(sp) LONG_S v1, PT_LO(sp) .endm .macro SAVE_STATIC LONG_S $16, PT_R16(sp) LONG_S $17, PT_R17(sp) LONG_S $18, PT_R18(sp) LONG_S $19, PT_R19(sp) LONG_S $20, PT_R20(sp) LONG_S $21, PT_R21(sp) LONG_S $22, PT_R22(sp) LONG_S $23, PT_R23(sp) LONG_S $30, PT_R30(sp) .endm .macro SAVE_SOME .set push .set noat .set reorder .set at=k0 move k1, sp PTR_SUBU k1, PT_SIZE .set noat move k0, sp move sp, k1 LONG_S k0, PT_R29(sp) LONG_S $3, PT_R3(sp) /* * You might think that you don't need to save $0, * but the FPU emulator and gdb remote debug stub * need it to operate correctly */ LONG_S $0, PT_R0(sp) mfc0 v1, CP0_STATUS LONG_S $2, PT_R2(sp) LONG_S v1, PT_STATUS(sp) LONG_S $4, PT_R4(sp) mfc0 v1, CP0_CAUSE LONG_S $5, PT_R5(sp) LONG_S v1, PT_CAUSE(sp) LONG_S $6, PT_R6(sp) MFC0 v1, CP0_EPC LONG_S $7, PT_R7(sp) #ifdef CONFIG_64BIT LONG_S $8, PT_R8(sp) LONG_S $9, PT_R9(sp) #endif LONG_S v1, PT_EPC(sp) LONG_S $25, PT_R25(sp) LONG_S $28, PT_R28(sp) LONG_S $31, PT_R31(sp) .set pop .endm .macro SAVE_ALL SAVE_SOME SAVE_AT SAVE_TEMP SAVE_STATIC .endm #endif /* _ASM_STACKFRAME_H */