forked from Mirrors/opensbi
49841832b8
We do following improvements for get_feature_str(): 1. We should return "none" from get_feature_str() no features available instead of sbi_boot_prints() explicitly handling failure. 2. We don't need to return failure (just like misa_xlen()) because we are returning "none" for no features and we are truncating output when space is not available. 3. Based on 1 and 2, the sbi_boot_prints() can be further simplified. 4. No need for two char[] in sbi_boot_prints() Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
|
|
* 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),
|
|
/** HART has timer csr implementation in hardware */
|
|
SBI_HART_HAS_TIME = (1 << 3),
|
|
|
|
/** Last index of Hart features*/
|
|
SBI_HART_HAS_LAST_FEATURE = SBI_HART_HAS_TIME,
|
|
};
|
|
|
|
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 sbi_hart_get_features_str(u32 hartid, char *features_str, int nfstr);
|
|
|
|
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
|