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80a20d2f82
-Wa,-msoft-float is tested with as-option, which will be a problem for clang with an upcoming change to move as-option to use KBUILD_AFLAGS instead of KBUILD_CFLAGS due to a lack of '-mno-abicalls' in KBUILD_AFLAGS at the point that this check occurs; $(cflags-y) is added to KBUILD_AFLAGS towards the end of this file. clang: error: ignoring '-fno-PIE' option as it cannot be used with implicit usage of -mabicalls and the N64 ABI [-Werror,-Woption-ignored] This could be resolved by switching to a cc-option check but '$(cflags-y)' would need to be added so that '-mno-abicalls' is present for the test. However, this check is no longer necessary, as -msoft-float is supported by all supported assembler versions (GNU as 2.25+ and LLVM 11+). Eliminate GAS_HAS_SET_HARDFLOAT and all of its uses, inlining SET_HARDFLOAT where necessary. Link: https://lore.kernel.org/202209101939.bvk64Fok-lkp@intel.com/ Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Tested-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* asmmacro.h: Assembler macros to make things easier to read.
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*
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* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
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* Copyright (C) 1998, 1999, 2003 Ralf Baechle
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*/
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#ifndef _ASM_ASMMACRO_32_H
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#define _ASM_ASMMACRO_32_H
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#include <asm/asm-offsets.h>
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#include <asm/regdef.h>
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#include <asm/fpregdef.h>
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#include <asm/mipsregs.h>
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.macro fpu_save_single thread tmp=t0
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.set push
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.set hardfloat
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cfc1 \tmp, fcr31
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s.d $f0, THREAD_FPR0(\thread)
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s.d $f2, THREAD_FPR2(\thread)
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s.d $f4, THREAD_FPR4(\thread)
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s.d $f6, THREAD_FPR6(\thread)
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s.d $f8, THREAD_FPR8(\thread)
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s.d $f10, THREAD_FPR10(\thread)
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s.d $f12, THREAD_FPR12(\thread)
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s.d $f14, THREAD_FPR14(\thread)
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s.d $f16, THREAD_FPR16(\thread)
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s.d $f18, THREAD_FPR18(\thread)
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s.d $f20, THREAD_FPR20(\thread)
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s.d $f22, THREAD_FPR22(\thread)
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s.d $f24, THREAD_FPR24(\thread)
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s.d $f26, THREAD_FPR26(\thread)
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s.d $f28, THREAD_FPR28(\thread)
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s.d $f30, THREAD_FPR30(\thread)
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sw \tmp, THREAD_FCR31(\thread)
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.set pop
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.endm
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.macro fpu_restore_single thread tmp=t0
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.set push
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.set hardfloat
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lw \tmp, THREAD_FCR31(\thread)
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l.d $f0, THREAD_FPR0(\thread)
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l.d $f2, THREAD_FPR2(\thread)
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l.d $f4, THREAD_FPR4(\thread)
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l.d $f6, THREAD_FPR6(\thread)
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l.d $f8, THREAD_FPR8(\thread)
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l.d $f10, THREAD_FPR10(\thread)
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l.d $f12, THREAD_FPR12(\thread)
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l.d $f14, THREAD_FPR14(\thread)
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l.d $f16, THREAD_FPR16(\thread)
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l.d $f18, THREAD_FPR18(\thread)
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l.d $f20, THREAD_FPR20(\thread)
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l.d $f22, THREAD_FPR22(\thread)
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l.d $f24, THREAD_FPR24(\thread)
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l.d $f26, THREAD_FPR26(\thread)
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l.d $f28, THREAD_FPR28(\thread)
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l.d $f30, THREAD_FPR30(\thread)
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ctc1 \tmp, fcr31
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.set pop
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.endm
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.macro cpu_save_nonscratch thread
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LONG_S s0, THREAD_REG16(\thread)
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LONG_S s1, THREAD_REG17(\thread)
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LONG_S s2, THREAD_REG18(\thread)
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LONG_S s3, THREAD_REG19(\thread)
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LONG_S s4, THREAD_REG20(\thread)
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LONG_S s5, THREAD_REG21(\thread)
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LONG_S s6, THREAD_REG22(\thread)
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LONG_S s7, THREAD_REG23(\thread)
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LONG_S sp, THREAD_REG29(\thread)
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LONG_S fp, THREAD_REG30(\thread)
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.endm
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.macro cpu_restore_nonscratch thread
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LONG_L s0, THREAD_REG16(\thread)
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LONG_L s1, THREAD_REG17(\thread)
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LONG_L s2, THREAD_REG18(\thread)
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LONG_L s3, THREAD_REG19(\thread)
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LONG_L s4, THREAD_REG20(\thread)
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LONG_L s5, THREAD_REG21(\thread)
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LONG_L s6, THREAD_REG22(\thread)
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LONG_L s7, THREAD_REG23(\thread)
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LONG_L sp, THREAD_REG29(\thread)
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LONG_L fp, THREAD_REG30(\thread)
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LONG_L ra, THREAD_REG31(\thread)
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.endm
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#endif /* _ASM_ASMMACRO_32_H */
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