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e82d20122d
Add a 32-bit unique ID to plic, aplic, and imsic data which can be used to differentiate multiple irqchip devices. Signed-off-by: Anup Patel <anup.patel@oss.qualcomm.com> Link: https://lore.kernel.org/r/20260213055342.3124872-7-anup.patel@oss.qualcomm.com Signed-off-by: Anup Patel <anup@brainfault.org>
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021 Western Digital Corporation or its affiliates.
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* Copyright (c) 2022 Ventana Micro Systems Inc.
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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 __IRQCHIP_IMSIC_H__
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#define __IRQCHIP_IMSIC_H__
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#include <sbi/sbi_types.h>
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#define IMSIC_MMIO_PAGE_SHIFT 12
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#define IMSIC_MMIO_PAGE_SZ (1UL << IMSIC_MMIO_PAGE_SHIFT)
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#define IMSIC_MAX_REGS 16
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struct imsic_regs {
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unsigned long addr;
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unsigned long size;
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};
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struct imsic_data {
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u32 unique_id;
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bool targets_mmode;
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u32 guest_index_bits;
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u32 hart_index_bits;
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u32 group_index_bits;
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u32 group_index_shift;
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unsigned long num_ids;
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struct imsic_regs regs[IMSIC_MAX_REGS];
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};
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#ifdef CONFIG_IRQCHIP_IMSIC
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int imsic_map_hartid_to_data(u32 hartid, struct imsic_data *imsic, int file);
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struct imsic_data *imsic_get_data(u32 hartindex);
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int imsic_get_target_file(u32 hartindex);
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void imsic_local_irqchip_init(void);
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int imsic_data_check(struct imsic_data *imsic);
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int imsic_cold_irqchip_init(struct imsic_data *imsic);
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#else
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static inline void imsic_local_irqchip_init(void) { }
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static inline int imsic_data_check(struct imsic_data *imsic) { return 0; }
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#endif
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#endif
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