linux_dsm_epyc7002/arch/arm/include/asm/jump_label.h
David Howells 74c4137b2a ARM: 7989/1: Delete asm/system.h
Delete ARM's asm/system.h.  It's the last holdout and should be got rid of.

This builds for defconfig, lpc32xx_defconfig, exynos_defconfig + XEN, the
previous changed to a Gemini system and an omap3 config with TI_DAVINCI_EMAC.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-25 11:33:37 +00:00

41 lines
679 B
C

#ifndef _ASM_ARM_JUMP_LABEL_H
#define _ASM_ARM_JUMP_LABEL_H
#ifdef __KERNEL__
#include <linux/types.h>
#define JUMP_LABEL_NOP_SIZE 4
#ifdef CONFIG_THUMB2_KERNEL
#define JUMP_LABEL_NOP "nop.w"
#else
#define JUMP_LABEL_NOP "nop"
#endif
static __always_inline bool arch_static_branch(struct static_key *key)
{
asm_volatile_goto("1:\n\t"
JUMP_LABEL_NOP "\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".word 1b, %l[l_yes], %c0\n\t"
".popsection\n\t"
: : "i" (key) : : l_yes);
return false;
l_yes:
return true;
}
#endif /* __KERNEL__ */
typedef u32 jump_label_t;
struct jump_entry {
jump_label_t code;
jump_label_t target;
jump_label_t key;
};
#endif