blob: 0e9c4b92359ab2eeba47179d4fba7fd473e61826 [file] [log] [blame]
/*
* Copyright (c) 2021-2023, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SME_H
#define SME_H
#include <stdbool.h>
#include <context.h>
/*
* Maximum value of LEN field in SMCR_ELx. This is different than the maximum
* supported value which is platform dependent. In the first version of SME the
* LEN field is limited to 4 bits but will be expanded in future iterations.
* To support different versions, the code that discovers the supported vector
* lengths will write the max value into SMCR_ELx then read it back to see how
* many bits are implemented.
*/
#define SME_SMCR_LEN_MAX U(0x1FF)
#if ENABLE_SME_FOR_NS
void sme_enable(cpu_context_t *context);
void sme_disable(cpu_context_t *context);
#else
static inline void sme_enable(cpu_context_t *context)
{
}
static inline void sme_disable(cpu_context_t *context)
{
}
#endif /* ENABLE_SME_FOR_NS */
#endif /* SME_H */