| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 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 <asm/assembly.h> |
| 9 | |
| 10 | #define JUMP_LABEL_NOP_SIZE 4 |
| 11 | |
| 12 | static __always_inline bool arch_static_branch(struct static_key *key, bool branch) |
| 13 | { |
| 14 | asm_volatile_goto("1:\n\t" |
| 15 | "nop\n\t" |
| 16 | ".pushsection __jump_table, \"aw\"\n\t" |
| 17 | ".word 1b - ., %l[l_yes] - .\n\t" |
| 18 | __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" |
| 19 | ".popsection\n\t" |
| 20 | : : "i" (&((char *)key)[branch]) : : l_yes); |
| 21 | |
| 22 | return false; |
| 23 | l_yes: |
| 24 | return true; |
| 25 | } |
| 26 | |
| 27 | static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) |
| 28 | { |
| 29 | asm_volatile_goto("1:\n\t" |
| 30 | "b,n %l[l_yes]\n\t" |
| 31 | ".pushsection __jump_table, \"aw\"\n\t" |
| 32 | ".word 1b - ., %l[l_yes] - .\n\t" |
| 33 | __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" |
| 34 | ".popsection\n\t" |
| 35 | : : "i" (&((char *)key)[branch]) : : l_yes); |
| 36 | |
| 37 | return false; |
| 38 | l_yes: |
| 39 | return true; |
| 40 | } |
| 41 | |
| 42 | #endif /* __ASSEMBLY__ */ |
| 43 | #endif |