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| author | Michael Ellerman <mpe@ellerman.id.au> | 2019-01-04 22:07:47 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-01-04 22:07:47 +1100 |
| commit | d538d94f0ca86cfedc892cc427169219acb3c2f7 (patch) | |
| tree | 8363c4ff35907edb5245da737d7f6982bf22b945 /arch/nds32/math-emu/fsubs.c | |
| parent | f460772291f8171988b2b60141a45706123d0c69 (diff) | |
| parent | 96d4f267e40f9509e8a66e2b39e8b95655617693 (diff) | |
| download | lwn-d538d94f0ca86cfedc892cc427169219acb3c2f7.tar.gz lwn-d538d94f0ca86cfedc892cc427169219acb3c2f7.zip | |
Merge branch 'master' into fixes
We have a fix to apply on top of commit 96d4f267e40f ("Remove 'type'
argument from access_ok() function"), so merge master to get it.
Diffstat (limited to 'arch/nds32/math-emu/fsubs.c')
| -rw-r--r-- | arch/nds32/math-emu/fsubs.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/nds32/math-emu/fsubs.c b/arch/nds32/math-emu/fsubs.c new file mode 100644 index 000000000000..61ddd9708465 --- /dev/null +++ b/arch/nds32/math-emu/fsubs.c @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2018 Andes Technology Corporation +#include <linux/uaccess.h> + +#include <asm/sfp-machine.h> +#include <math-emu/soft-fp.h> +#include <math-emu/single.h> +void fsubs(void *ft, void *fa, void *fb) +{ + + FP_DECL_S(A); + FP_DECL_S(B); + FP_DECL_S(R); + FP_DECL_EX; + + FP_UNPACK_SP(A, fa); + FP_UNPACK_SP(B, fb); + + if (B_c != FP_CLS_NAN) + B_s ^= 1; + + FP_ADD_S(R, A, B); + + FP_PACK_SP(ft, R); + + __FPU_FPCSR |= FP_CUR_EXCEPTIONS; +} |