mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 15:12:21 +00:00
4982f46420
Collect a couple of duplicated defines into a single place. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
38 lines
881 B
C
38 lines
881 B
C
/*
|
|
* Copyright (c) 2011 Samsung Electronics
|
|
* Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* This is a Linux kernel compatibility layer for USB Gadget
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __LIN_COMPAT_H__
|
|
#define __LIN_COMPAT_H__
|
|
|
|
#include <linux/compat.h>
|
|
|
|
/* common */
|
|
#define BITS_PER_BYTE 8
|
|
#define BITS_TO_LONGS(nr) \
|
|
DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
|
|
#define DECLARE_BITMAP(name, bits) \
|
|
unsigned long name[BITS_TO_LONGS(bits)]
|
|
|
|
#define small_const_nbits(nbits) \
|
|
(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
|
|
|
|
static inline void bitmap_zero(unsigned long *dst, int nbits)
|
|
{
|
|
if (small_const_nbits(nbits))
|
|
*dst = 0UL;
|
|
else {
|
|
int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
|
|
memset(dst, 0, len);
|
|
}
|
|
}
|
|
|
|
#define dma_cache_maint(addr, size, mode) cache_flush()
|
|
void cache_flush(void);
|
|
|
|
#endif /* __LIN_COMPAT_H__ */
|