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Diffstat (limited to '')
| -rw-r--r-- | arch/parisc/include/asm/special_insns.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h new file mode 100644 index 000000000..c822bd0c0 --- /dev/null +++ b/arch/parisc/include/asm/special_insns.h @@ -0,0 +1,71 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PARISC_SPECIAL_INSNS_H +#define __PARISC_SPECIAL_INSNS_H + +#define lpa(va) ({ \ + unsigned long pa; \ + __asm__ __volatile__( \ + "copy %%r0,%0\n" \ + "8:\tlpa %%r0(%1),%0\n" \ + "9:\n" \ + ASM_EXCEPTIONTABLE_ENTRY(8b, 9b) \ + : "=&r" (pa) \ + : "r" (va) \ + : "memory" \ + ); \ + pa; \ +}) + +#define lpa_user(va) ({ \ + unsigned long pa; \ + __asm__ __volatile__( \ + "copy %%r0,%0\n" \ + "8:\tlpa %%r0(%%sr3,%1),%0\n" \ + "9:\n" \ + ASM_EXCEPTIONTABLE_ENTRY(8b, 9b) \ + : "=&r" (pa) \ + : "r" (va) \ + : "memory" \ + ); \ + pa; \ +}) + +#define CR_EIEM 15 /* External Interrupt Enable Mask */ +#define CR_CR16 16 /* CR16 Interval Timer */ +#define CR_EIRR 23 /* External Interrupt Request Register */ + +#define mfctl(reg) ({ \ + unsigned long cr; \ + __asm__ __volatile__( \ + "mfctl %1,%0" : \ + "=r" (cr) : "i" (reg) \ + ); \ + cr; \ +}) + +#define mtctl(gr, cr) \ + __asm__ __volatile__("mtctl %0,%1" \ + : /* no outputs */ \ + : "r" (gr), "i" (cr) : "memory") + +#define get_eiem() mfctl(CR_EIEM) +#define set_eiem(val) mtctl(val, CR_EIEM) + +#define mfsp(reg) ({ \ + unsigned long cr; \ + __asm__ __volatile__( \ + "mfsp %%sr%1,%0" \ + : "=r" (cr) : "i"(reg) \ + ); \ + cr; \ +}) + +#define mtsp(val, cr) \ + { if (__builtin_constant_p(val) && ((val) == 0)) \ + __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \ + else \ + __asm__ __volatile__("mtsp %0,%1" \ + : /* no outputs */ \ + : "r" (val), "i" (cr) : "memory"); } + +#endif /* __PARISC_SPECIAL_INSNS_H */ |