From a1df417e74aa6dae7352dc8cbb0ad471af5b7c69 Mon Sep 17 00:00:00 2001 From: "Michael J. Chudobiak" Date: Mon, 25 Apr 2016 10:00:44 -0400 Subject: initial Olimex linux tree from Daniel, originally Feb 3, 2016 --- linux/arch/sparc/include/asm/jump_label.h | 34 +++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 linux/arch/sparc/include/asm/jump_label.h (limited to 'linux/arch/sparc/include/asm/jump_label.h') diff --git a/linux/arch/sparc/include/asm/jump_label.h b/linux/arch/sparc/include/asm/jump_label.h new file mode 100644 index 00000000..cc9b04a2 --- /dev/null +++ b/linux/arch/sparc/include/asm/jump_label.h @@ -0,0 +1,34 @@ +#ifndef _ASM_SPARC_JUMP_LABEL_H +#define _ASM_SPARC_JUMP_LABEL_H + +#ifndef __ASSEMBLY__ + +#include + +#define JUMP_LABEL_NOP_SIZE 4 + +static __always_inline bool arch_static_branch(struct static_key *key) +{ + asm_volatile_goto("1:\n\t" + "nop\n\t" + "nop\n\t" + ".pushsection __jump_table, \"aw\"\n\t" + ".align 4\n\t" + ".word 1b, %l[l_yes], %c0\n\t" + ".popsection \n\t" + : : "i" (key) : : l_yes); + return false; +l_yes: + return true; +} + +typedef u32 jump_label_t; + +struct jump_entry { + jump_label_t code; + jump_label_t target; + jump_label_t key; +}; + +#endif /* __ASSEMBLY__ */ +#endif -- cgit