| David S. Miller | dff9d3c | 2010-09-17 11:09:25 -0400 | [diff] [blame] | 1 | #ifndef _ASM_SPARC_JUMP_LABEL_H |
| 2 | #define _ASM_SPARC_JUMP_LABEL_H |
| 3 | |
| 4 | #ifdef __KERNEL__ |
| 5 | |
| 6 | #include <linux/types.h> |
| David S. Miller | dff9d3c | 2010-09-17 11:09:25 -0400 | [diff] [blame] | 7 | |
| 8 | #define JUMP_LABEL_NOP_SIZE 4 |
| 9 | |
| Ingo Molnar | c5905af | 2012-02-24 08:31:31 +0100 | [diff] [blame] | 10 | static __always_inline bool arch_static_branch(struct static_key *key) |
| Jason Baron | d430d3d | 2011-03-16 17:29:47 -0400 | [diff] [blame] | 11 | { |
| Ingo Molnar | 3f0116c | 2013-10-10 10:16:30 +0200 | [diff] [blame] | 12 | asm_volatile_goto("1:\n\t" |
| Jason Baron | d430d3d | 2011-03-16 17:29:47 -0400 | [diff] [blame] | 13 | "nop\n\t" |
| 14 | "nop\n\t" |
| 15 | ".pushsection __jump_table, \"aw\"\n\t" |
| 16 | ".align 4\n\t" |
| 17 | ".word 1b, %l[l_yes], %c0\n\t" |
| 18 | ".popsection \n\t" |
| 19 | : : "i" (key) : : l_yes); |
| 20 | return false; |
| 21 | l_yes: |
| 22 | return true; |
| 23 | } |
| David S. Miller | dff9d3c | 2010-09-17 11:09:25 -0400 | [diff] [blame] | 24 | |
| 25 | #endif /* __KERNEL__ */ |
| 26 | |
| 27 | typedef u32 jump_label_t; |
| 28 | |
| 29 | struct jump_entry { |
| 30 | jump_label_t code; |
| 31 | jump_label_t target; |
| 32 | jump_label_t key; |
| 33 | }; |
| 34 | |
| 35 | #endif |