#include #if CPUINFO_MOCK extern uint32_t cpuinfo_arm_fpsid; extern uint32_t cpuinfo_arm_mvfr0; extern uint32_t cpuinfo_arm_wcid; static inline uint32_t read_fpsid(void) { return cpuinfo_arm_fpsid; } static inline uint32_t read_mvfr0(void) { return cpuinfo_arm_mvfr0; } static inline uint32_t read_wcid(void) { return cpuinfo_arm_wcid; } #else #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_8A__) && !(defined(__ARM_ARCH) && (__ARM_ARCH >= 7)) /* * CoProcessor 10 is inaccessible from user mode since ARMv7, * and clang refuses to compile inline assembly when targeting ARMv7+ */ static inline uint32_t read_fpsid(void) { uint32_t fpsid; __asm__ __volatile__("MRC p10, 0x7, %[fpsid], cr0, cr0, 0" : [fpsid] "=r" (fpsid)); return fpsid; } static inline uint32_t read_mvfr0(void) { uint32_t mvfr0; __asm__ __volatile__("MRC p10, 0x7, %[mvfr0], cr7, cr0, 0" : [mvfr0] "=r" (mvfr0)); return mvfr0; } #endif #if !defined(__ARM_ARCH_8A__) && !(defined(__ARM_ARCH) && (__ARM_ARCH >= 8)) /* * In ARMv8, AArch32 state supports only conceptual coprocessors CP10, CP11, CP14, and CP15. * AArch64 does not support the concept of coprocessors. * and clang refuses to compile inline assembly when targeting ARMv8+ */ static inline uint32_t read_wcid(void) { uint32_t wcid; __asm__ __volatile__("MRC p1, 0, %[wcid], c0, c0" : [wcid] "=r" (wcid)); return wcid; } #endif #endif