Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
822 B
C
44 lines
822 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/uaccess.h>
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#include <asm/sfp-machine.h>
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#include <math-emu/soft-fp.h>
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#include <math-emu/double.h>
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#include <math-emu/single.h>
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int
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stfs(void *frS, void *ea)
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{
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FP_DECL_D(A);
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FP_DECL_S(R);
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FP_DECL_EX;
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float f;
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#ifdef DEBUG
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printk("%s: S %p, ea %p\n", __func__, frS, ea);
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#endif
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FP_UNPACK_DP(A, frS);
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#ifdef DEBUG
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printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
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#endif
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FP_CONV(S, D, 1, 2, R, A);
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#ifdef DEBUG
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printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c);
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#endif
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_FP_PACK_CANONICAL(S, 1, R);
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if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) {
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_FP_PACK_RAW_1_P(S, &f, R);
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if (copy_to_user(ea, &f, sizeof(float)))
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return -EFAULT;
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}
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return FP_CUR_EXCEPTIONS;
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}
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