From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- tools/arch/mips/include/asm/barrier.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 tools/arch/mips/include/asm/barrier.h (limited to 'tools/arch/mips/include/asm/barrier.h') diff --git a/tools/arch/mips/include/asm/barrier.h b/tools/arch/mips/include/asm/barrier.h new file mode 100644 index 000000000..0d1191523 --- /dev/null +++ b/tools/arch/mips/include/asm/barrier.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _TOOLS_LINUX_ASM_MIPS_BARRIER_H +#define _TOOLS_LINUX_ASM_MIPS_BARRIER_H +/* + * FIXME: This came from tools/perf/perf-sys.h, where it was first introduced + * in c1e028ef40b8d6943b767028ba17d4f2ba020edb, more work needed to make it + * more closely follow the Linux kernel arch/mips/include/asm/barrier.h file. + * Probably when we continue work on tools/ Kconfig support to have all the + * CONFIG_ needed for properly doing that. + */ +#define mb() asm volatile( \ + ".set mips2\n\t" \ + "sync\n\t" \ + ".set mips0" \ + : /* no output */ \ + : /* no input */ \ + : "memory") +#define wmb() mb() +#define rmb() mb() + +#endif /* _TOOLS_LINUX_ASM_MIPS_BARRIER_H */ -- cgit v1.2.3