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TOMOYO Linux Cross Reference
Linux/arch/parisc/include/asm/special_insns.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef __PARISC_SPECIAL_INSNS_H
  3 #define __PARISC_SPECIAL_INSNS_H
  4 
  5 #define lpa(va) ({                                      \
  6         unsigned long pa;                               \
  7         __asm__ __volatile__(                           \
  8                 "copy %%r0,%0\n"                        \
  9                 "8:\tlpa %%r0(%1),%0\n"                 \
 10                 "9:\n"                                  \
 11                 ASM_EXCEPTIONTABLE_ENTRY(8b, 9b,        \
 12                                 "or %%r0,%%r0,%%r0")    \
 13                 : "=&r" (pa)                            \
 14                 : "r" (va)                              \
 15                 : "memory"                              \
 16         );                                              \
 17         pa;                                             \
 18 })
 19 
 20 #define lpa_user(va)    ({                              \
 21         unsigned long pa;                               \
 22         __asm__ __volatile__(                           \
 23                 "copy %%r0,%0\n"                        \
 24                 "8:\tlpa %%r0(%%sr3,%1),%0\n"           \
 25                 "9:\n"                                  \
 26                 ASM_EXCEPTIONTABLE_ENTRY(8b, 9b,        \
 27                                 "or %%r0,%%r0,%%r0")    \
 28                 : "=&r" (pa)                            \
 29                 : "r" (va)                              \
 30                 : "memory"                              \
 31         );                                              \
 32         pa;                                             \
 33 })
 34 
 35 #define CR_EIEM 15      /* External Interrupt Enable Mask */
 36 #define CR_CR16 16      /* CR16 Interval Timer */
 37 #define CR_EIRR 23      /* External Interrupt Request Register */
 38 
 39 #define mfctl(reg)      ({              \
 40         unsigned long cr;               \
 41         __asm__ __volatile__(           \
 42                 "mfctl %1,%0" :         \
 43                  "=r" (cr) : "i" (reg)  \
 44         );                              \
 45         cr;                             \
 46 })
 47 
 48 #define mtctl(gr, cr) \
 49         __asm__ __volatile__("mtctl %0,%1" \
 50                 : /* no outputs */ \
 51                 : "r" (gr), "i" (cr) : "memory")
 52 
 53 #define get_eiem()      mfctl(CR_EIEM)
 54 #define set_eiem(val)   mtctl(val, CR_EIEM)
 55 
 56 #define mfsp(reg)       ({              \
 57         unsigned long cr;               \
 58         __asm__ __volatile__(           \
 59                 "mfsp %%sr%1,%0"        \
 60                 : "=r" (cr) : "i"(reg)  \
 61         );                              \
 62         cr;                             \
 63 })
 64 
 65 #define mtsp(val, cr) \
 66         { if (__builtin_constant_p(val) && ((val) == 0)) \
 67          __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \
 68         else \
 69          __asm__ __volatile__("mtsp %0,%1" \
 70                 : /* no outputs */ \
 71                 : "r" (val), "i" (cr) : "memory"); }
 72 
 73 #endif /* __PARISC_SPECIAL_INSNS_H */
 74 

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