mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
39 lines
552 B
C
39 lines
552 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2010
|
|
* Texas Instruments, <www.ti.com>
|
|
* Aneesh V <aneesh@ti.com>
|
|
*/
|
|
#ifndef _UTILS_H_
|
|
#define _UTILS_H_
|
|
|
|
static inline s32 log_2_n_round_up(u32 n)
|
|
{
|
|
s32 log2n = -1;
|
|
u32 temp = n;
|
|
|
|
while (temp) {
|
|
log2n++;
|
|
temp >>= 1;
|
|
}
|
|
|
|
if (n & (n - 1))
|
|
return log2n + 1; /* not power of 2 - round up */
|
|
else
|
|
return log2n; /* power of 2 */
|
|
}
|
|
|
|
static inline s32 log_2_n_round_down(u32 n)
|
|
{
|
|
s32 log2n = -1;
|
|
u32 temp = n;
|
|
|
|
while (temp) {
|
|
log2n++;
|
|
temp >>= 1;
|
|
}
|
|
|
|
return log2n;
|
|
}
|
|
|
|
#endif
|