| /* |
| * Definitions for the FPU register names |
| * |
| * 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) 1995, 1999 Ralf Baechle |
| * Copyright (C) 1985 MIPS Computer Systems, Inc. |
| * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc. |
| */ |
| #ifndef _ASM_FPREGDEF_H |
| #define _ASM_FPREGDEF_H |
| |
| #include <asm/sgidefs.h> |
| |
| /* |
| * starting with binutils 2.24.51.20140729, MIPS binutils warn about mixing |
| * hardfloat and softfloat object files. The kernel build uses soft-float by |
| * default, so we also need to pass -msoft-float along to GAS if it supports it. |
| * But this in turn causes assembler errors in files which access hardfloat |
| * registers. We detect if GAS supports "-msoft-float" in the Makefile and |
| * explicitly put ".set hardfloat" where floating point registers are touched. |
| */ |
| #ifdef GAS_HAS_SET_HARDFLOAT |
| #define SET_HARDFLOAT .set hardfloat |
| #else |
| #define SET_HARDFLOAT |
| #endif |
| |
| #if _MIPS_SIM == _MIPS_SIM_ABI32 |
| |
| /* |
| * These definitions only cover the R3000-ish 16/32 register model. |
| * But we're trying to be R3000 friendly anyway ... |
| */ |
| #define fv0 $f0 /* return value */ |
| #define fv0f $f1 |
| #define fv1 $f2 |
| #define fv1f $f3 |
| #define fa0 $f12 /* argument registers */ |
| #define fa0f $f13 |
| #define fa1 $f14 |
| #define fa1f $f15 |
| #define ft0 $f4 /* caller saved */ |
| #define ft0f $f5 |
| #define ft1 $f6 |
| #define ft1f $f7 |
| #define ft2 $f8 |
| #define ft2f $f9 |
| #define ft3 $f10 |
| #define ft3f $f11 |
| #define ft4 $f16 |
| #define ft4f $f17 |
| #define ft5 $f18 |
| #define ft5f $f19 |
| #define fs0 $f20 /* callee saved */ |
| #define fs0f $f21 |
| #define fs1 $f22 |
| #define fs1f $f23 |
| #define fs2 $f24 |
| #define fs2f $f25 |
| #define fs3 $f26 |
| #define fs3f $f27 |
| #define fs4 $f28 |
| #define fs4f $f29 |
| #define fs5 $f30 |
| #define fs5f $f31 |
| |
| #define fcr31 $31 /* FPU status register */ |
| |
| #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ |
| |
| #if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 |
| |
| #define fv0 $f0 /* return value */ |
| #define fv1 $f2 |
| #define fa0 $f12 /* argument registers */ |
| #define fa1 $f13 |
| #define fa2 $f14 |
| #define fa3 $f15 |
| #define fa4 $f16 |
| #define fa5 $f17 |
| #define fa6 $f18 |
| #define fa7 $f19 |
| #define ft0 $f4 /* caller saved */ |
| #define ft1 $f5 |
| #define ft2 $f6 |
| #define ft3 $f7 |
| #define ft4 $f8 |
| #define ft5 $f9 |
| #define ft6 $f10 |
| #define ft7 $f11 |
| #define ft8 $f20 |
| #define ft9 $f21 |
| #define ft10 $f22 |
| #define ft11 $f23 |
| #define ft12 $f1 |
| #define ft13 $f3 |
| #define fs0 $f24 /* callee saved */ |
| #define fs1 $f25 |
| #define fs2 $f26 |
| #define fs3 $f27 |
| #define fs4 $f28 |
| #define fs5 $f29 |
| #define fs6 $f30 |
| #define fs7 $f31 |
| |
| #define fcr31 $31 |
| |
| #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ |
| |
| #endif /* _ASM_FPREGDEF_H */ |
