#include <linux/kernel.h> | |
#include <linux/types.h> | |
#include <linux/mutex.h> | |
#include <linux/cpu.h> | |
#include <linux/jump_label.h> | |
#include <linux/memory.h> | |
#include <asm/cacheflush.h> | |
#ifdef HAVE_JUMP_LABEL | |
void arch_jump_label_transform(struct jump_entry *entry, | |
enum jump_label_type type) | |
{ | |
u32 val; | |
u32 *insn = (u32 *) (unsigned long) entry->code; | |
if (type == JUMP_LABEL_ENABLE) { | |
s32 off = (s32)entry->target - (s32)entry->code; | |
#ifdef CONFIG_SPARC64 | |
/* ba,pt %xcc, . + (off << 2) */ | |
val = 0x10680000 | ((u32) off >> 2); | |
#else | |
/* ba . + (off << 2) */ | |
val = 0x10800000 | ((u32) off >> 2); | |
#endif | |
} else { | |
val = 0x01000000; | |
} | |
get_online_cpus(); | |
mutex_lock(&text_mutex); | |
*insn = val; | |
flushi(insn); | |
mutex_unlock(&text_mutex); | |
put_online_cpus(); | |
} | |
#endif |