mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
8f2df5d369
[backport from linux commit 204b885e and 218e180e7] 64 bit processors are becomming more and more popular. lower_32_bits and upper_32_bits save our labor doing shifts/manipulations like (u32)(n) and (u32)((n) >> 32). They are good helpers in both little and big endian cases. Port these two functions here from Linux:include/linux/kernel.h, cater the comment message to little/big endian cases. Later on, developers could include linux/compat.h if they want to use these two functions. Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
79 lines
2 KiB
C
79 lines
2 KiB
C
#ifndef _LINUX_COMPAT_H_
|
|
#define _LINUX_COMPAT_H_
|
|
|
|
#define ndelay(x) udelay(1)
|
|
|
|
#define dev_dbg(dev, fmt, args...) \
|
|
debug(fmt, ##args)
|
|
#define dev_vdbg(dev, fmt, args...) \
|
|
debug(fmt, ##args)
|
|
#define dev_info(dev, fmt, args...) \
|
|
printf(fmt, ##args)
|
|
#define dev_err(dev, fmt, args...) \
|
|
printf(fmt, ##args)
|
|
#define printk printf
|
|
|
|
#define KERN_EMERG
|
|
#define KERN_ALERT
|
|
#define KERN_CRIT
|
|
#define KERN_ERR
|
|
#define KERN_WARNING
|
|
#define KERN_NOTICE
|
|
#define KERN_INFO
|
|
#define KERN_DEBUG
|
|
|
|
#define kmalloc(size, flags) malloc(size)
|
|
#define kzalloc(size, flags) calloc(size, 1)
|
|
#define vmalloc(size) malloc(size)
|
|
#define kfree(ptr) free(ptr)
|
|
#define vfree(ptr) free(ptr)
|
|
|
|
#define DECLARE_WAITQUEUE(...) do { } while (0)
|
|
#define add_wait_queue(...) do { } while (0)
|
|
#define remove_wait_queue(...) do { } while (0)
|
|
|
|
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
|
|
|
|
/*
|
|
* ..and if you can't take the strict
|
|
* types, you can specify one yourself.
|
|
*
|
|
* Or not use min/max at all, of course.
|
|
*/
|
|
#define min_t(type,x,y) \
|
|
({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
|
|
#define max_t(type,x,y) \
|
|
({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
|
|
|
|
#ifndef BUG
|
|
#define BUG() do { \
|
|
printf("U-Boot BUG at %s:%d!\n", __FILE__, __LINE__); \
|
|
} while (0)
|
|
|
|
#define BUG_ON(condition) do { if (condition) BUG(); } while(0)
|
|
#endif /* BUG */
|
|
|
|
#define WARN_ON(x) if (x) {printf("WARNING in %s line %d\n" \
|
|
, __FILE__, __LINE__); }
|
|
|
|
#define PAGE_SIZE 4096
|
|
|
|
/**
|
|
* upper_32_bits - return MSB bits 32-63 of a number if little endian, or
|
|
* return MSB bits 0-31 of a number if big endian.
|
|
* @n: the number we're accessing
|
|
*
|
|
* A basic shift-right of a 64- or 32-bit quantity. Use this to suppress
|
|
* the "right shift count >= width of type" warning when that quantity is
|
|
* 32-bits.
|
|
*/
|
|
#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
|
|
|
|
/**
|
|
* lower_32_bits - return LSB bits 0-31 of a number if little endian, or
|
|
* return LSB bits 32-63 of a number if big endian.
|
|
* @n: the number we're accessing
|
|
*/
|
|
#define lower_32_bits(n) ((u32)(n))
|
|
|
|
#endif
|