forked from Mirrors/opensbi
7487116b41
We remove mcause, scratch and hartid parameters from various functions for ecall handling because we can always get current HART id and current scratch pointer using just one CSR access. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
37 lines
1000 B
C
37 lines
1000 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Atish Patra <atish.patra@wdc.com>
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*/
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#ifndef __SBI_HSM_H__
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#define __SBI_HSM_H__
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#include <sbi/sbi_types.h>
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/** Hart state values **/
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#define SBI_HART_STOPPED 0
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#define SBI_HART_STOPPING 1
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#define SBI_HART_STARTING 2
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#define SBI_HART_STARTED 3
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#define SBI_HART_UNKNOWN 4
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struct sbi_scratch;
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int sbi_hsm_init(struct sbi_scratch *scratch, u32 hartid, bool cold_boot);
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void __noreturn sbi_hsm_exit(struct sbi_scratch *scratch);
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int sbi_hsm_hart_start(struct sbi_scratch *scratch, u32 hartid,
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ulong saddr, ulong priv);
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int sbi_hsm_hart_stop(struct sbi_scratch *scratch, bool exitnow);
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int sbi_hsm_hart_get_state(u32 hartid);
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int sbi_hsm_hart_state_to_status(int state);
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bool sbi_hsm_hart_started(u32 hartid);
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int sbi_hsm_hart_started_mask(ulong hbase, ulong *out_hmask);
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void sbi_hsm_prepare_next_jump(struct sbi_scratch *scratch, u32 hartid);
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#endif
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