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>
31 lines
495 B
ArmAsm
31 lines
495 B
ArmAsm
/* NG4fls.S: SPARC optimized fls and __fls for T4 and above.
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*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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*/
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#include <linux/linkage.h>
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#define LZCNT_O0_G2 \
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.word 0x85b002e8
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.text
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.register %g2, #scratch
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.register %g3, #scratch
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ENTRY(NG4fls)
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LZCNT_O0_G2 !lzcnt %o0, %g2
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mov 64, %g3
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retl
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sub %g3, %g2, %o0
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ENDPROC(NG4fls)
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ENTRY(__NG4fls)
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brz,pn %o0, 1f
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LZCNT_O0_G2 !lzcnt %o0, %g2
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mov 63, %g3
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sub %g3, %g2, %o0
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1:
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retl
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nop
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ENDPROC(__NG4fls)
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