Release 4.14 arch/powerpc/include/asm/jump_label.h
#ifndef _ASM_POWERPC_JUMP_LABEL_H
#define _ASM_POWERPC_JUMP_LABEL_H
/*
* Copyright 2010 Michael Ellerman, IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <asm/feature-fixups.h>
#include <asm/asm-compat.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"
JUMP_ENTRY_TYPE "1b, %l[l_yes], %c0\n\t"
".popsection \n\t"
: : "i" (&((char *)key)[branch]) : : l_yes);
return false;
l_yes:
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Peter Zijlstra | 29 | 55.77% | 1 | 20.00% |
| Michael Ellerman | 12 | 23.08% | 2 | 40.00% |
| Ingo Molnar | 11 | 21.15% | 2 | 40.00% |
| Total | 52 | 100.00% | 5 | 100.00% |
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"
JUMP_ENTRY_TYPE "1b, %l[l_yes], %c0\n\t"
".popsection \n\t"
: : "i" (&((char *)key)[branch]) : : l_yes);
return false;
l_yes:
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Peter Zijlstra | 35 | 67.31% | 1 | 25.00% |
| Michael Ellerman | 10 | 19.23% | 2 | 50.00% |
| Ingo Molnar | 7 | 13.46% | 1 | 25.00% |
| Total | 52 | 100.00% | 4 | 100.00% |
#ifdef CONFIG_PPC64
typedef u64 jump_label_t;
#else
typedef u32 jump_label_t;
#endif
struct jump_entry {
jump_label_t code;
jump_label_t target;
jump_label_t key;
};
#else
#define ARCH_STATIC_BRANCH(LABEL, KEY) \
1098: nop; \
.pushsection __jump_table, "aw"; \
FTR_ENTRY_LONG 1098b, LABEL, KEY; \
.popsection
#endif
#endif /* _ASM_POWERPC_JUMP_LABEL_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Michael Ellerman | 73 | 41.24% | 2 | 28.57% |
| Peter Zijlstra | 64 | 36.16% | 1 | 14.29% |
| Ingo Molnar | 20 | 11.30% | 2 | 28.57% |
| Anton Blanchard | 17 | 9.60% | 1 | 14.29% |
| Jason Baron | 3 | 1.69% | 1 | 14.29% |
| Total | 177 | 100.00% | 7 | 100.00% |
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