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freertos: release the generic version source code

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freertos runs on the second core (small one) of the CPU
This commit is contained in:
carbon
2023-10-19 14:31:43 +08:00
parent e266c53351
commit ca03037500
2166 changed files with 694154 additions and 58149 deletions
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43
freertos/cvitek/common/include/cv1835/linux/__fls.h Normal file
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#ifndef _ASM_GENERIC_BITOPS___FLS_H_
#define _ASM_GENERIC_BITOPS___FLS_H_
#include <linux/types.h>
/**
* __fls - find last (most-significant) set bit in a long word
* @word: the word to search
*
* Undefined if no set bit exists, so code should cheggck against 0 first.
*/
static __always_inline unsigned long __fls(unsigned long word)
{
int num = BITS_PER_LONG - 1;
#if BITS_PER_LONG == 64
if (!(word & (~0ul << 32))) {
num -= 32;
word <<= 32;
}
#endif
if (!(word & (~0ul << (BITS_PER_LONG - 16)))) {
num -= 16;
word <<= 16;
}
if (!(word & (~0ul << (BITS_PER_LONG - 8)))) {
num -= 8;
word <<= 8;
}
if (!(word & (~0ul << (BITS_PER_LONG - 4)))) {
num -= 4;
word <<= 4;
}
if (!(word & (~0ul << (BITS_PER_LONG - 2)))) {
num -= 2;
word <<= 2;
}
if (!(word & (~0ul << (BITS_PER_LONG - 1))))
num -= 1;
return num;
}
#endif /* _ASM_GENERIC_BITOPS___FLS_H_ */