2018-08-06 17:11 GMT+02:00 Stefan Roese sr@denx.de:
This is needed for the UBIFS support. The file is a copy of arch/xtensa/include/asm/atomic.h
could you try to import this file from Linux MIPS? Then we would have optimized functions.
Other way would be to import include/asm-generic/atomic.h from Linux so that all architectures in U-Boot could at least use a generic version.
Signed-off-by: Stefan Roese sr@denx.de Cc: Daniel Schwierzeck daniel.schwierzeck@gmail.com
arch/mips/include/asm/atomic.h | 54 ++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 arch/mips/include/asm/atomic.h
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h new file mode 100644 index 0000000000..7551bf6e6c --- /dev/null +++ b/arch/mips/include/asm/atomic.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/*
- Copyright (C) 2016 Cadence Design Systems Inc.
- */
+#ifndef _MIPS_ATOMIC_H +#define _MIPS_ATOMIC_H
+#include <asm/system.h>
+typedef struct { volatile int counter; } atomic_t;
+#define ATOMIC_INIT(i) { (i) }
+#define atomic_read(v) ((v)->counter) +#define atomic_set(v, i) ((v)->counter = (i))
+static inline void atomic_add(int i, atomic_t *v) +{
unsigned long flags;local_irq_save(flags);v->counter += i;local_irq_restore(flags);+}
+static inline void atomic_sub(int i, atomic_t *v) +{
unsigned long flags;local_irq_save(flags);v->counter -= i;local_irq_restore(flags);+}
+static inline void atomic_inc(atomic_t *v) +{
unsigned long flags;local_irq_save(flags);++v->counter;local_irq_restore(flags);+}
+static inline void atomic_dec(atomic_t *v) +{
unsigned long flags;local_irq_save(flags);--v->counter;local_irq_restore(flags);+}
+#endif
2.18.0