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linux-next/arch/sparc/lib/hweight.S
Jan Engelhardt 59585b4be9 sparc64: repair calling incorrect hweight function from stubs
Commit v4.12-rc4-1-g9289ea7f952b introduced a mistake that made the
64-bit hweight stub call the 16-bit hweight function.

Fixes: 9289ea7f95 ("sparc64: Use indirect calls in hamming weight stubs")
Signed-off-by: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-27 20:29:48 -05:00

58 lines
1.2 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/linkage.h>
#include <asm/export.h>
.text
.align 32
ENTRY(__arch_hweight8)
sethi %hi(__sw_hweight8), %g1
jmpl %g1 + %lo(__sw_hweight8), %g0
nop
ENDPROC(__arch_hweight8)
EXPORT_SYMBOL(__arch_hweight8)
.section .popc_3insn_patch, "ax"
.word __arch_hweight8
sllx %o0, 64-8, %g1
retl
popc %g1, %o0
.previous
ENTRY(__arch_hweight16)
sethi %hi(__sw_hweight16), %g1
jmpl %g1 + %lo(__sw_hweight16), %g0
nop
ENDPROC(__arch_hweight16)
EXPORT_SYMBOL(__arch_hweight16)
.section .popc_3insn_patch, "ax"
.word __arch_hweight16
sllx %o0, 64-16, %g1
retl
popc %g1, %o0
.previous
ENTRY(__arch_hweight32)
sethi %hi(__sw_hweight32), %g1
jmpl %g1 + %lo(__sw_hweight32), %g0
nop
ENDPROC(__arch_hweight32)
EXPORT_SYMBOL(__arch_hweight32)
.section .popc_3insn_patch, "ax"
.word __arch_hweight32
sllx %o0, 64-32, %g1
retl
popc %g1, %o0
.previous
ENTRY(__arch_hweight64)
sethi %hi(__sw_hweight64), %g1
jmpl %g1 + %lo(__sw_hweight64), %g0
nop
ENDPROC(__arch_hweight64)
EXPORT_SYMBOL(__arch_hweight64)
.section .popc_3insn_patch, "ax"
.word __arch_hweight64
retl
popc %o0, %o0
nop
.previous