diff options
| author | Dominik Sliwa <dominik.sliwa@toradex.com> | 2019-03-04 12:01:54 +0100 |
|---|---|---|
| committer | Dominik Sliwa <dominik.sliwa@toradex.com> | 2019-03-04 12:01:54 +0100 |
| commit | 348fa3f6871f56a37dcd16c99ca98118c6d79a38 (patch) | |
| tree | 6fcae7785bae4ffb838fd6549f7d01ba6abf0763 /backport-include/asm/barrier.h | |
Backports v4.19.24
Backports generated by toradex backports 515a1fa55cda2b1d952872e1786857481bd54fcc
against mainline kernel tag v4.19.24
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Diffstat (limited to 'backport-include/asm/barrier.h')
| -rw-r--r-- | backport-include/asm/barrier.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/backport-include/asm/barrier.h b/backport-include/asm/barrier.h new file mode 100644 index 0000000..9e1e1f1 --- /dev/null +++ b/backport-include/asm/barrier.h @@ -0,0 +1,22 @@ +#ifndef __BACKPORT_ASM_BARRIER_H +#define __BACKPORT_ASM_BARRIER_H + +#include <linux/version.h> +#if LINUX_VERSION_IS_GEQ(3,4,0) || \ + defined(CONFIG_ALPHA) || defined(CONFIG_MIPS) +#include_next <asm/barrier.h> +#endif /* >= 3.4 */ + +#ifndef dma_rmb +#define dma_rmb() rmb() +#endif + +#ifndef dma_wmb +#define dma_wmb() wmb() +#endif + +#ifndef smp_mb__after_atomic +#define smp_mb__after_atomic smp_mb__after_clear_bit +#endif + +#endif /* __BACKPORT_ASM_BARRIER_H */ |