special_insns.h (1582B)
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 : "=&r" (pa) \ 13 : "r" (va) \ 14 : "memory" \ 15 ); \ 16 pa; \ 17}) 18 19#define lpa_user(va) ({ \ 20 unsigned long pa; \ 21 __asm__ __volatile__( \ 22 "copy %%r0,%0\n" \ 23 "8:\tlpa %%r0(%%sr3,%1),%0\n" \ 24 "9:\n" \ 25 ASM_EXCEPTIONTABLE_ENTRY(8b, 9b) \ 26 : "=&r" (pa) \ 27 : "r" (va) \ 28 : "memory" \ 29 ); \ 30 pa; \ 31}) 32 33#define CR_EIEM 15 /* External Interrupt Enable Mask */ 34#define CR_CR16 16 /* CR16 Interval Timer */ 35#define CR_EIRR 23 /* External Interrupt Request Register */ 36 37#define mfctl(reg) ({ \ 38 unsigned long cr; \ 39 __asm__ __volatile__( \ 40 "mfctl %1,%0" : \ 41 "=r" (cr) : "i" (reg) \ 42 ); \ 43 cr; \ 44}) 45 46#define mtctl(gr, cr) \ 47 __asm__ __volatile__("mtctl %0,%1" \ 48 : /* no outputs */ \ 49 : "r" (gr), "i" (cr) : "memory") 50 51#define get_eiem() mfctl(CR_EIEM) 52#define set_eiem(val) mtctl(val, CR_EIEM) 53 54#define mfsp(reg) ({ \ 55 unsigned long cr; \ 56 __asm__ __volatile__( \ 57 "mfsp %%sr%1,%0" \ 58 : "=r" (cr) : "i"(reg) \ 59 ); \ 60 cr; \ 61}) 62 63#define mtsp(val, cr) \ 64 { if (__builtin_constant_p(val) && ((val) == 0)) \ 65 __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \ 66 else \ 67 __asm__ __volatile__("mtsp %0,%1" \ 68 : /* no outputs */ \ 69 : "r" (val), "i" (cr) : "memory"); } 70 71#endif /* __PARISC_SPECIAL_INSNS_H */