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c2d2b9140a
Since the APLIC may enter a reset state upon system wake-up from a platform low power state, adding a restore function to reinitialize the APLIC. Reviewed-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Cyan Yang <cyan.yang@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Nick Hu <nick.hu@sifive.com> Link: https://lore.kernel.org/r/20251020-cache-upstream-v7-7-69a132447d8a@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>
55 lines
1.1 KiB
C
55 lines
1.1 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_APLIC_H__
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#define __IRQCHIP_APLIC_H__
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#include <sbi/sbi_types.h>
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#include <sbi/sbi_irqchip.h>
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#define APLIC_MAX_DELEGATE 16
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struct aplic_msicfg_data {
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unsigned long lhxs;
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unsigned long lhxw;
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unsigned long hhxs;
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unsigned long hhxw;
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unsigned long base_addr;
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};
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struct aplic_delegate_data {
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u32 first_irq;
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u32 last_irq;
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u32 child_index;
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};
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struct aplic_data {
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/* Private members */
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struct sbi_irqchip_device irqchip;
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struct sbi_dlist node;
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/* Public members */
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unsigned long addr;
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unsigned long size;
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unsigned long num_idc;
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unsigned long num_source;
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bool targets_mmode;
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bool has_msicfg_mmode;
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struct aplic_msicfg_data msicfg_mmode;
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bool has_msicfg_smode;
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struct aplic_msicfg_data msicfg_smode;
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struct aplic_delegate_data delegate[APLIC_MAX_DELEGATE];
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};
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int aplic_cold_irqchip_init(struct aplic_data *aplic);
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void aplic_reinit_all(void);
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#endif
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