1 #ifndef _SELFTESTS_POWERPC_PMU_EBB_LMR_H 2 #define _SELFTESTS_POWERPC_PMU_EBB_LMR_H 3 4 #include "reg.h" 5 6 #ifndef PPC_FEATURE2_ARCH_3_00 7 #define PPC_FEATURE2_ARCH_3_00 0x00800000 8 #endif 9 10 #define lmr_is_supported() have_hwcap2(PPC_FEATURE2_ARCH_3_00) 11 12 static inline void ebb_lmr_reset(void) 13 { 14 unsigned long bescr = mfspr(SPRN_BESCR); 15 bescr &= ~(BESCR_LMEO); 16 bescr |= BESCR_LME; 17 mtspr(SPRN_BESCR, bescr); 18 } 19 20 #define LDMX(t, a, b)\ 21 (0x7c00026a | \ 22 (((t) & 0x1f) << 21) | \ 23 (((a) & 0x1f) << 16) | \ 24 (((b) & 0x1f) << 11)) 25 26 static inline unsigned long ldmx(unsigned long address) 27 { 28 unsigned long ret; 29 30 asm volatile ("mr 9, %1\r\n" 31 ".long " __stringify(LDMX(9, 0, 9)) "\r\n" 32 "mr %0, 9\r\n":"=r"(ret) 33 :"r"(address) 34 :"r9"); 35 36 return ret; 37 } 38 39 #endif 40
