_spr 16 arch/openrisc/include/asm/spr.h #define mtspr(_spr, _val) __asm__ __volatile__ ( \ _spr 18 arch/openrisc/include/asm/spr.h : : "K" (_spr), "r" (_val)) _spr 19 arch/openrisc/include/asm/spr.h #define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \ _spr 21 arch/openrisc/include/asm/spr.h : : "r" (_off), "r" (_val), "K" (_spr))