From be58c81aff4cd4c0ccf43dbd7998da4a6a08c03b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 19:43:51 +0200 Subject: Adding upstream version 2.10.0+dfsg. Signed-off-by: Daniel Baumann --- include/lib/extensions/sme.h | 51 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 include/lib/extensions/sme.h (limited to 'include/lib/extensions/sme.h') diff --git a/include/lib/extensions/sme.h b/include/lib/extensions/sme.h new file mode 100644 index 0000000..bd7948e --- /dev/null +++ b/include/lib/extensions/sme.h @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2021-2023, Arm Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef SME_H +#define SME_H + +#include +#include + +/* + * 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_init_el3(void); +void sme_init_el2_unused(void); +void sme_enable(cpu_context_t *context); +void sme_disable(cpu_context_t *context); +void sme_enable_per_world(per_world_context_t *per_world_ctx); +void sme_disable_per_world(per_world_context_t *per_world_ctx); +#else +static inline void sme_init_el3(void) +{ +} +static inline void sme_init_el2_unused(void) +{ +} +static inline void sme_enable(cpu_context_t *context) +{ +} +static inline void sme_disable(cpu_context_t *context) +{ +} +static inline void sme_enable_per_world(per_world_context_t *per_world_ctx) +{ +} +static inline void sme_disable_per_world(per_world_context_t *per_world_ctx) +{ +} +#endif /* ENABLE_SME_FOR_NS */ + +#endif /* SME_H */ -- cgit v1.2.3