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https://github.com/riscv-software-src/opensbi.git
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9777aeef41
This patch adds new IPI extension which replaces ipi related v0.1 extensions. This also adds a new API for ipi sending as trap handling is not necessary in v0.2 SBI IPI related extensions. It also modifies the IPI sending code which now accepts hart mask as a value instead of S-mode virtual address. Thus, the caller should set it to exact hart mask value everytime. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
40 lines
778 B
C
40 lines
778 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_IPI_H__
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#define __SBI_IPI_H__
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#include <sbi/sbi_types.h>
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/* clang-format off */
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#define SBI_IPI_EVENT_SOFT 0x1
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#define SBI_IPI_EVENT_FENCE 0x2
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#define SBI_IPI_EVENT_HALT 0x10
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/* clang-format on */
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struct sbi_scratch;
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struct sbi_trap_info;
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struct sbi_ipi_data {
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unsigned long ipi_type;
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};
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int sbi_ipi_send_many(struct sbi_scratch *scratch, ulong hmask,
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ulong hbase, u32 event, void *data);
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void sbi_ipi_clear_smode(struct sbi_scratch *scratch);
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void sbi_ipi_process(struct sbi_scratch *scratch);
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int sbi_ipi_init(struct sbi_scratch *scratch, bool cold_boot);
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#endif
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