summaryrefslogtreecommitdiff
path: root/include/lib/extensions/sme.h
blob: f443ceaa1325abb382d542c010b80c45d3f2a627 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
/*
 * Copyright (c) 2021-2022, Arm Limited. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef SME_H
#define SME_H

#define MAX_VL			(512)
#define MAX_VL_B		(MAX_VL / 8)
#define SME_SMCR_LEN_MAX	U(0x1FF)

typedef enum {
	SMSTART,	/* enters streaming sve mode and enables SME ZA array */
	SMSTART_SM,	/* enters streaming sve mode only */
	SMSTART_ZA,	/* enables SME ZA array storage only */
} smestart_instruction_type_t;

typedef enum {
	SMSTOP,		/* exits streaming sve mode, & disables SME ZA array */
	SMSTOP_SM,	/* exits streaming sve mode only */
	SMSTOP_ZA,	/* disables SME ZA array storage only */
} smestop_instruction_type_t;

/* SME feature related prototypes. */
void sme_enable(void);
void sme_smstart(smestart_instruction_type_t smstart_type);
void sme_smstop(smestop_instruction_type_t smstop_type);

/* Assembly function prototypes. */
uint64_t sme_rdvl_1(void);
void sme_try_illegal_instruction(void);
void sme_vector_to_ZA(const uint64_t *input_vector);
void sme_ZA_to_vector(const uint64_t *output_vector);

#endif /* SME_H */