diff options
Diffstat (limited to 'arch/powerpc/include/asm/mmiowb.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmiowb.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmiowb.h b/arch/powerpc/include/asm/mmiowb.h new file mode 100644 index 000000000000..b10180613507 --- /dev/null +++ b/arch/powerpc/include/asm/mmiowb.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_POWERPC_MMIOWB_H +#define _ASM_POWERPC_MMIOWB_H + +#ifdef CONFIG_MMIOWB + +#include <linux/compiler.h> +#include <asm/barrier.h> +#include <asm/paca.h> + +#define arch_mmiowb_state() (&local_paca->mmiowb_state) +#define mmiowb() mb() + +#else +#define mmiowb() do { } while (0) +#endif /* CONFIG_MMIOWB */ + +#include <asm-generic/mmiowb.h> + +#endif /* _ASM_POWERPC_MMIOWB_H */ |