Contributors: 7
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Peter Zijlstra |
63 |
41.72% |
1 |
9.09% |
| Michael Ellerman |
46 |
30.46% |
3 |
27.27% |
| Ingo Molnar |
17 |
11.26% |
2 |
18.18% |
| Anton Blanchard |
16 |
10.60% |
1 |
9.09% |
| Christophe Leroy |
5 |
3.31% |
2 |
18.18% |
| Jason Baron |
2 |
1.32% |
1 |
9.09% |
| Thomas Gleixner |
2 |
1.32% |
1 |
9.09% |
| Total |
151 |
|
11 |
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_POWERPC_JUMP_LABEL_H
#define _ASM_POWERPC_JUMP_LABEL_H
/*
* Copyright 2010 Michael Ellerman, IBM Corp.
*/
#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <asm/feature-fixups.h>
#include <asm/asm-const.h>
#define JUMP_ENTRY_TYPE stringify_in_c(FTR_ENTRY_LONG)
#define JUMP_LABEL_NOP_SIZE 4
static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
{
asm_volatile_goto("1:\n\t"
"nop # arch_static_branch\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".long 1b - ., %l[l_yes] - .\n\t"
JUMP_ENTRY_TYPE "%c0 - .\n\t"
".popsection \n\t"
: : "i" (&((char *)key)[branch]) : : l_yes);
return false;
l_yes:
return true;
}
static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
{
asm_volatile_goto("1:\n\t"
"b %l[l_yes] # arch_static_branch_jump\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".long 1b - ., %l[l_yes] - .\n\t"
JUMP_ENTRY_TYPE "%c0 - .\n\t"
".popsection \n\t"
: : "i" (&((char *)key)[branch]) : : l_yes);
return false;
l_yes:
return true;
}
#else
#define ARCH_STATIC_BRANCH(LABEL, KEY) \
1098: nop; \
.pushsection __jump_table, "aw"; \
.long 1098b - ., LABEL - .; \
FTR_ENTRY_LONG KEY - .; \
.popsection
#endif
#endif /* _ASM_POWERPC_JUMP_LABEL_H */