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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __SBI_HART_H__
#define __SBI_HART_H__
#include <sbi/sbi_types.h>
/** Possible feature flags of a hart */
enum sbi_hart_features {
/** Hart has PMP support */
SBI_HART_HAS_PMP = (1 << 0),
/** Hart has S-mode counter enable */
SBI_HART_HAS_SCOUNTEREN = (1 << 1),
/** Hart has M-mode counter enable */
SBI_HART_HAS_MCOUNTEREN = (1 << 2),
};
struct sbi_scratch;
int sbi_hart_init(struct sbi_scratch *scratch, u32 hartid, bool cold_boot);
extern void (*sbi_hart_expected_trap)(void);
static inline ulong sbi_hart_expected_trap_addr(void)
{
return (ulong)sbi_hart_expected_trap;
}
void sbi_hart_delegation_dump(struct sbi_scratch *scratch);
void sbi_hart_pmp_dump(struct sbi_scratch *scratch);
int sbi_hart_pmp_check_addr(struct sbi_scratch *scratch, unsigned long daddr,
unsigned long attr);
bool sbi_hart_has_feature(u32 hartid, unsigned long feature);
unsigned long sbi_hart_get_features(u32 hartid);
void __attribute__((noreturn)) sbi_hart_hang(void);
void __attribute__((noreturn))
sbi_hart_switch_mode(unsigned long arg0, unsigned long arg1,
unsigned long next_addr, unsigned long next_mode,
bool next_virt);
#endif
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