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1e9f88889f
For platforms not having TIME CSR, we trap-n-emulate TIME CSR read/write in OpenSBI. Same rationale applies to HTIMEDELTA CSR as well so we trap-n-emulate HTIMEDELTA CSR for platforms not having TIME CSR. Signed-off-by: Anup Patel <anup.patel@wdc.com>
25 lines
571 B
C
25 lines
571 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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*/
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#ifndef __SBI_EMULATE_CSR_H__
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#define __SBI_EMULATE_CSR_H__
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#include <sbi/sbi_types.h>
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struct sbi_trap_regs;
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struct sbi_scratch;
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int sbi_emulate_csr_read(int csr_num, u32 hartid, struct sbi_trap_regs *regs,
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struct sbi_scratch *scratch, ulong *csr_val);
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int sbi_emulate_csr_write(int csr_num, u32 hartid, struct sbi_trap_regs *regs,
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struct sbi_scratch *scratch, ulong csr_val);
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#endif
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