16 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __PERF_UTIL_HEADER_H3#define __PERF_UTIL_HEADER_H4 5#include <linux/stringify.h>6 7#define mfspr(rn) ({unsigned long rval; \8 asm volatile("mfspr %0," __stringify(rn) \9 : "=r" (rval)); rval; })10 11#define SPRN_PVR 0x11F /* Processor Version Register */12#define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */13#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revision field */14 15#endif /* __PERF_UTIL_HEADER_H */16