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https://github.com/riscv-software-src/opensbi.git
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559a8f1d3b
Instead of having timer_value(), timer_event_start(), and timer_event_stop() callbacks in platform operations, it will be much simpler for timer driver to directly register these operations as device to the sbi_timer implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
46 lines
954 B
C
46 lines
954 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 __SYS_CLINT_H__
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#define __SYS_CLINT_H__
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#include <sbi/sbi_types.h>
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struct clint_data {
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/* Public details */
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unsigned long addr;
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u32 first_hartid;
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u32 hart_count;
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bool has_64bit_mmio;
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/* Private details (initialized and used by CLINT library)*/
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u32 *ipi;
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struct clint_data *time_delta_reference;
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unsigned long time_delta_computed;
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u64 time_delta;
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u64 *time_val;
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u64 *time_cmp;
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u64 (*time_rd)(volatile u64 *addr);
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void (*time_wr)(u64 value, volatile u64 *addr);
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};
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void clint_ipi_send(u32 target_hart);
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void clint_ipi_clear(u32 target_hart);
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int clint_warm_ipi_init(void);
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int clint_cold_ipi_init(struct clint_data *clint);
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int clint_warm_timer_init(void);
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int clint_cold_timer_init(struct clint_data *clint,
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struct clint_data *reference);
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#endif
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