mirror of
https://github.com/torvalds/linux.git
synced 2026-05-27 08:33:17 +02:00
287d163322
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize now on the __ASSEMBLER__ macro that is provided by the compilers. This is a mostly mechanical patch (done with a simple "sed -i" statement), except for the following files where comments with mis-spelled macros were tweaked manually: arch/arm64/include/asm/stacktrace/frame.h arch/arm64/include/asm/kvm_ptrauth.h arch/arm64/include/asm/debug-monitors.h arch/arm64/include/asm/esr.h arch/arm64/include/asm/scs.h arch/arm64/include/asm/memory.h Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
37 lines
755 B
C
37 lines
755 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) 2018 ARM Limited
|
|
*/
|
|
#ifndef __COMPAT_BARRIER_H
|
|
#define __COMPAT_BARRIER_H
|
|
|
|
#ifndef __ASSEMBLER__
|
|
/*
|
|
* Warning: This code is meant to be used from the compat vDSO only.
|
|
*/
|
|
#ifdef __arch64__
|
|
#error This header is meant to be used with from the compat vDSO only
|
|
#endif
|
|
|
|
#ifdef dmb
|
|
#undef dmb
|
|
#endif
|
|
|
|
#define dmb(option) __asm__ __volatile__ ("dmb " #option : : : "memory")
|
|
|
|
#define aarch32_smp_mb() dmb(ish)
|
|
#define aarch32_smp_rmb() dmb(ishld)
|
|
#define aarch32_smp_wmb() dmb(ishst)
|
|
|
|
#undef smp_mb
|
|
#undef smp_rmb
|
|
#undef smp_wmb
|
|
|
|
#define smp_mb() aarch32_smp_mb()
|
|
#define smp_rmb() aarch32_smp_rmb()
|
|
#define smp_wmb() aarch32_smp_wmb()
|
|
|
|
#endif /* !__ASSEMBLER__ */
|
|
|
|
#endif /* __COMPAT_BARRIER_H */
|