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bitops-grb.h
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SH_BITOPS_GRB_H #define __ASM_SH_BITOPS_GRB_H static inline void set_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; unsigned long tmp; a += nr >> 5; mask = 1 << (nr & 0x1f); __asm__ __volatile__ ( " .align 2 \n\t" " mova 1f, r0 \n\t" /* r0 = end point */ " mov r15, r1 \n\t" /* r1 = saved sp */ " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ " mov.l @%1, %0 \n\t" /* load old value */ " or %2, %0 \n\t" /* or */ " mov.l %0, @%1 \n\t" /* store new value */ "1: mov r1, r15 \n\t" /* LOGOUT */ : "=&r" (tmp), "+r" (a) : "r" (mask) : "memory" , "r0", "r1"); } static inline void clear_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; unsigned long tmp; a += nr >> 5; mask = ~(1 << (nr & 0x1f)); __asm__ __volatile__ ( " .align 2 \n\t" " mova 1f, r0 \n\t" /* r0 = end point */ " mov r15, r1 \n\t" /* r1 = saved sp */ " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ " mov.l @%1, %0 \n\t" /* load old value */ " and %2, %0 \n\t" /* and */ " mov.l %0, @%1 \n\t" /* store new value */ "1: mov r1, r15 \n\t" /* LOGOUT */ : "=&r" (tmp), "+r" (a) : "r" (mask) : "memory" , "r0", "r1"); } static inline void change_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; unsigned long tmp; a += nr >> 5; mask = 1 << (nr & 0x1f); __asm__ __volatile__ ( " .align 2 \n\t" " mova 1f, r0 \n\t" /* r0 = end point */ " mov r15, r1 \n\t" /* r1 = saved sp */ " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ " mov.l @%1, %0 \n\t" /* load old value */ " xor %2, %0 \n\t" /* xor */ " mov.l %0, @%1 \n\t" /* store new value */ "1: mov r1, r15 \n\t" /* LOGOUT */ : "=&r" (tmp), "+r" (a) : "r" (mask) : "memory" , "r0", "r1"); } static inline int test_and_set_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; unsigned long tmp; a += nr >> 5; mask = 1 << (nr & 0x1f); __asm__ __volatile__ ( " .align 2 \n\t" " mova 1f, r0 \n\t" /* r0 = end point */ " mov r15, r1 \n\t" /* r1 = saved sp */ " mov #-14, r15 \n\t" /* LOGIN: r15 = size */ " mov.l @%2, %0 \n\t" /* load old value */ " mov %0, %1 \n\t" " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ " mov #-1, %1 \n\t" /* retvat = -1 */ " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ " or %3, %0 \n\t" " mov.l %0, @%2 \n\t" /* store new value */ "1: mov r1, r15 \n\t" /* LOGOUT */ : "=&r" (tmp), "=&r" (retval), "+r" (a) : "r" (mask) : "memory" , "r0", "r1" ,"t"); return retval; } static inline int test_and_clear_bit(int nr, volatile void * addr) { int mask, retval,not_mask; volatile unsigned int *a = addr; unsigned long tmp; a += nr >> 5; mask = 1 << (nr & 0x1f); not_mask = ~mask; __asm__ __volatile__ ( " .align 2 \n\t" " mova 1f, r0 \n\t" /* r0 = end point */ " mov r15, r1 \n\t" /* r1 = saved sp */ " mov #-14, r15 \n\t" /* LOGIN */ " mov.l @%2, %0 \n\t" /* load old value */ " mov %0, %1 \n\t" /* %1 = *a */ " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ " mov #-1, %1 \n\t" /* retvat = -1 */ " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ " and %4, %0 \n\t" " mov.l %0, @%2 \n\t" /* store new value */ "1: mov r1, r15 \n\t" /* LOGOUT */ : "=&r" (tmp), "=&r" (retval), "+r" (a) : "r" (mask), "r" (not_mask) : "memory" , "r0", "r1", "t"); return retval; } static inline int test_and_change_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; unsigned long tmp; a += nr >> 5; mask = 1 << (nr & 0x1f); __asm__ __volatile__ ( " .align 2 \n\t" " mova 1f, r0 \n\t" /* r0 = end point */ " mov r15, r1 \n\t" /* r1 = saved sp */ " mov #-14, r15 \n\t" /* LOGIN */ " mov.l @%2, %0 \n\t" /* load old value */ " mov %0, %1 \n\t" /* %1 = *a */ " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ " mov #-1, %1 \n\t" /* retvat = -1 */ " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ " xor %3, %0 \n\t" " mov.l %0, @%2 \n\t" /* store new value */ "1: mov r1, r15 \n\t" /* LOGOUT */ : "=&r" (tmp), "=&r" (retval), "+r" (a) : "r" (mask) : "memory" , "r0", "r1", "t"); return retval; } #include <asm-generic/bitops/non-atomic.h> #endif /* __ASM_SH_BITOPS_GRB_H */
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