~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/sh/include/asm/cmpxchg-llsc.h

Version: ~ [ linux-5.3-rc8 ] ~ [ linux-5.2.13 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.71 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.142 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.191 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.191 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.73 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #ifndef __ASM_SH_CMPXCHG_LLSC_H
  2 #define __ASM_SH_CMPXCHG_LLSC_H
  3 
  4 static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
  5 {
  6         unsigned long retval;
  7         unsigned long tmp;
  8 
  9         __asm__ __volatile__ (
 10                 "1:                                     \n\t"
 11                 "movli.l        @%2, %0 ! xchg_u32      \n\t"
 12                 "mov            %0, %1                  \n\t"
 13                 "mov            %3, %0                  \n\t"
 14                 "movco.l        %0, @%2                 \n\t"
 15                 "bf             1b                      \n\t"
 16                 "synco                                  \n\t"
 17                 : "=&z"(tmp), "=&r" (retval)
 18                 : "r" (m), "r" (val)
 19                 : "t", "memory"
 20         );
 21 
 22         return retval;
 23 }
 24 
 25 static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
 26 {
 27         unsigned long retval;
 28         unsigned long tmp;
 29 
 30         __asm__ __volatile__ (
 31                 "1:                                     \n\t"
 32                 "movli.l        @%2, %0 ! xchg_u8       \n\t"
 33                 "mov            %0, %1                  \n\t"
 34                 "mov            %3, %0                  \n\t"
 35                 "movco.l        %0, @%2                 \n\t"
 36                 "bf             1b                      \n\t"
 37                 "synco                                  \n\t"
 38                 : "=&z"(tmp), "=&r" (retval)
 39                 : "r" (m), "r" (val & 0xff)
 40                 : "t", "memory"
 41         );
 42 
 43         return retval;
 44 }
 45 
 46 static inline unsigned long
 47 __cmpxchg_u32(volatile int *m, unsigned long old, unsigned long new)
 48 {
 49         unsigned long retval;
 50         unsigned long tmp;
 51 
 52         __asm__ __volatile__ (
 53                 "1:                                             \n\t"
 54                 "movli.l        @%2, %0 ! __cmpxchg_u32         \n\t"
 55                 "mov            %0, %1                          \n\t"
 56                 "cmp/eq         %1, %3                          \n\t"
 57                 "bf             2f                              \n\t"
 58                 "mov            %4, %0                          \n\t"
 59                 "2:                                             \n\t"
 60                 "movco.l        %0, @%2                         \n\t"
 61                 "bf             1b                              \n\t"
 62                 "synco                                          \n\t"
 63                 : "=&z" (tmp), "=&r" (retval)
 64                 : "r" (m), "r" (old), "r" (new)
 65                 : "t", "memory"
 66         );
 67 
 68         return retval;
 69 }
 70 
 71 #endif /* __ASM_SH_CMPXCHG_LLSC_H */
 72 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp