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