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[linux.git] / arch / parisc / include / asm / jump_label.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_PARISC_JUMP_LABEL_H
3 #define _ASM_PARISC_JUMP_LABEL_H
4
5 #ifndef __ASSEMBLY__
6
7 #include <linux/types.h>
8 #include <linux/stringify.h>
9 #include <asm/assembly.h>
10
11 #define JUMP_LABEL_NOP_SIZE 4
12
13 static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
14 {
15         asm_volatile_goto("1:\n\t"
16                  "nop\n\t"
17                  ".pushsection __jump_table,  \"aw\"\n\t"
18                  ".word 1b - ., %l[l_yes] - .\n\t"
19                  __stringify(ASM_ULONG_INSN) " %c0 - .\n\t"
20                  ".popsection\n\t"
21                  : :  "i" (&((char *)key)[branch]) :  : l_yes);
22
23         return false;
24 l_yes:
25         return true;
26 }
27
28 static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
29 {
30         asm_volatile_goto("1:\n\t"
31                  "b,n %l[l_yes]\n\t"
32                  ".pushsection __jump_table,  \"aw\"\n\t"
33                  ".word 1b - ., %l[l_yes] - .\n\t"
34                  __stringify(ASM_ULONG_INSN) " %c0 - .\n\t"
35                  ".popsection\n\t"
36                  : :  "i" (&((char *)key)[branch]) :  : l_yes);
37
38         return false;
39 l_yes:
40         return true;
41 }
42
43 #endif  /* __ASSEMBLY__ */
44 #endif
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