diff options
Diffstat (limited to 'arch/arm/vfp/vfpinstr.h')
| -rw-r--r-- | arch/arm/vfp/vfpinstr.h | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/arch/arm/vfp/vfpinstr.h b/arch/arm/vfp/vfpinstr.h index 15b95b5ab97e..a2f0c47e0ce7 100644 --- a/arch/arm/vfp/vfpinstr.h +++ b/arch/arm/vfp/vfpinstr.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/arch/arm/vfp/vfpinstr.h * * Copyright (C) 2004 ARM Limited. * Written by Deep Blue Solutions Limited. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * VFP instruction masks. */ #define INST_CPRTDO(inst) (((inst) & 0x0f000000) == 0x0e000000) @@ -65,22 +62,19 @@ #define FPSCR_C (1 << 29) #define FPSCR_V (1 << 28) -/* - * Since we aren't building with -mfpu=vfp, we need to code - * these instructions using their MRC/MCR equivalents. - */ -#define vfpreg(_vfp_) #_vfp_ - -#define fmrx(_vfp_) ({ \ - u32 __v; \ - asm("mrc p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmrx %0, " #_vfp_ \ - : "=r" (__v) : : "cc"); \ - __v; \ - }) +#define fmrx(_vfp_) ({ \ + u32 __v; \ + asm volatile (".fpu vfpv2\n" \ + "vmrs %0, " #_vfp_ \ + : "=r" (__v) : : "cc"); \ + __v; \ +}) -#define fmxr(_vfp_,_var_) \ - asm("mcr p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmxr " #_vfp_ ", %0" \ - : : "r" (_var_) : "cc") +#define fmxr(_vfp_, _var_) ({ \ + asm volatile (".fpu vfpv2\n" \ + "vmsr " #_vfp_ ", %0" \ + : : "r" (_var_) : "cc"); \ +}) u32 vfp_single_cpdo(u32 inst, u32 fpscr); u32 vfp_single_cprt(u32 inst, u32 fpscr, struct pt_regs *regs); |