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>
28 lines
782 B
C
28 lines
782 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_M68K_LIBGCC_H
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#define __ASM_M68K_LIBGCC_H
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#ifndef CONFIG_CPU_HAS_NO_MULDIV64
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/*
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* For those 68K CPUs that support 64bit multiply define umul_ppm()
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* for the common muldi3 libgcc helper function (in lib/muldi3.c).
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* CPUs that don't have it (like the original 68000 and ColdFire)
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* will fallback to using the C-coded version of umul_ppmm().
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*/
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#define umul_ppmm(w1, w0, u, v) \
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do { \
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unsigned long __u = (u), __v = (v); \
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unsigned long __w0, __w1; \
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\
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__asm__ ("mulu%.l %3,%1:%0" \
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: "=d" (__w0), \
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"=d" (__w1) \
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: "%0" (__u), \
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"dmi" (__v)); \
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\
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(w0) = __w0; (w1) = __w1; \
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} while (0)
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#endif /* !CONFIG_CPU_HAS_NO_MULDIV64 */
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#endif /* __ASM_M68K_LIBGCC_H */
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