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/* 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
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