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5122e380c2
Add ACPI support in APLIC drivers. Use the mapping created early during boot to get the details about the APLIC. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Tested-by: Björn Töpel <bjorn@rivosinc.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/20240812005929.113499-17-sunilvl@ventanamicro.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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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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#ifndef _IRQ_RISCV_APLIC_MAIN_H
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#define _IRQ_RISCV_APLIC_MAIN_H
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#include <linux/device.h>
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#include <linux/io.h>
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#include <linux/irq.h>
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#include <linux/irqdomain.h>
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#include <linux/fwnode.h>
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#define APLIC_DEFAULT_PRIORITY 1
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struct aplic_msicfg {
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phys_addr_t base_ppn;
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u32 hhxs;
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u32 hhxw;
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u32 lhxs;
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u32 lhxw;
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};
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struct aplic_priv {
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struct device *dev;
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u32 gsi_base;
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u32 nr_irqs;
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u32 nr_idcs;
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u32 acpi_aplic_id;
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void __iomem *regs;
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struct aplic_msicfg msicfg;
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};
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void aplic_irq_unmask(struct irq_data *d);
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void aplic_irq_mask(struct irq_data *d);
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int aplic_irq_set_type(struct irq_data *d, unsigned int type);
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int aplic_irqdomain_translate(struct irq_fwspec *fwspec, u32 gsi_base,
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unsigned long *hwirq, unsigned int *type);
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void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode);
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int aplic_setup_priv(struct aplic_priv *priv, struct device *dev, void __iomem *regs);
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int aplic_direct_setup(struct device *dev, void __iomem *regs);
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#ifdef CONFIG_RISCV_APLIC_MSI
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int aplic_msi_setup(struct device *dev, void __iomem *regs);
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#else
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static inline int aplic_msi_setup(struct device *dev, void __iomem *regs)
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{
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return -ENODEV;
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}
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#endif
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#endif
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