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/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2024 ARM Limited * * Common helper functions for SVE and SME functionality. */ #ifndef __SVE_HELPERS_H__ #define __SVE_HELPERS_H__ #include <stdbool.h> #define VLS_USE_SVE false #define VLS_USE_SME true extern unsigned int vls[]; extern unsigned int nvls; int sve_fill_vls(bool use_sme, int min_vls); static inline uint64_t get_svcr(void) { uint64_t val; asm volatile ( "mrs %0, S3_3_C4_C2_2\n" : "=r"(val) : : "cc"); return val; } #endif