Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #ifndef __ASM_CSKY_BITOPS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #define __ASM_CSKY_BITOPS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/compiler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <asm/barrier.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * asm-generic/bitops/ffs.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) static inline int ffs(int x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	if (!x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	asm volatile (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		"brev %0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		"ff1  %0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		"addi %0, 1\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		: "=&r"(x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		: "0"(x));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	return x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * asm-generic/bitops/__ffs.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static __always_inline unsigned long __ffs(unsigned long x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	asm volatile (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		"brev %0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		"ff1  %0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		: "=&r"(x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		: "0"(x));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	return x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)  * asm-generic/bitops/fls.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static __always_inline int fls(unsigned int x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		"ff1 %0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		: "=&r"(x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 		: "0"(x));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	return (32 - x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)  * asm-generic/bitops/__fls.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static __always_inline unsigned long __fls(unsigned long x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	return fls(x) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #include <asm-generic/bitops/ffz.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #include <asm-generic/bitops/fls64.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #include <asm-generic/bitops/find.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #ifndef _LINUX_BITOPS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #error only <linux/bitops.h> can be included directly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #include <asm-generic/bitops/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #include <asm-generic/bitops/hweight.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #include <asm-generic/bitops/lock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #include <asm-generic/bitops/atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)  * bug fix, why only could use atomic!!!!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #include <asm-generic/bitops/non-atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define __clear_bit(nr, vaddr) clear_bit(nr, vaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #include <asm-generic/bitops/le.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #include <asm-generic/bitops/ext2-atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #endif /* __ASM_CSKY_BITOPS_H */