Viewing file:  jump_label.h (1.16 KB) -rw-r--r--
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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __ASM_CSKY_JUMP_LABEL_H
#define __ASM_CSKY_JUMP_LABEL_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
#define JUMP_LABEL_NOP_SIZE 4
static __always_inline bool arch_static_branch(struct static_key *key,
bool branch)
{
asm goto(
"1: nop32 \n"
" .pushsection __jump_table, \"aw\" \n"
" .align 2 \n"
" .long 1b - ., %l[label] - . \n"
" .long %0 - . \n"
" .popsection \n"
: : "i"(&((char *)key)[branch]) : : label);
return false;
label:
return true;
}
static __always_inline bool arch_static_branch_jump(struct static_key *key,
bool branch)
{
asm goto(
"1: bsr32 %l[label] \n"
" .pushsection __jump_table, \"aw\" \n"
" .align 2 \n"
" .long 1b - ., %l[label] - . \n"
" .long %0 - . \n"
" .popsection \n"
: : "i"(&((char *)key)[branch]) : : label);
return false;
label:
return true;
}
enum jump_label_type;
void arch_jump_label_transform_static(struct jump_entry *entry,
enum jump_label_type type);
#define arch_jump_label_transform_static arch_jump_label_transform_static
#endif /* __ASSEMBLY__ */
#endif /* __ASM_CSKY_JUMP_LABEL_H */
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