drivers/irqchip/irq-riscv-aplic-main.h

root/drivers/irqchip/irq-riscv-aplic-main.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2021 Western Digital Corporation or its affiliates.
 * Copyright (C) 2022 Ventana Micro Systems Inc.
 */

#ifndef _IRQ_RISCV_APLIC_MAIN_H
#define _IRQ_RISCV_APLIC_MAIN_H

#include <linux/device.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/fwnode.h>

#define APLIC_DEFAULT_PRIORITY          1

struct aplic_msicfg {
        phys_addr_t             base_ppn;
        u32                     hhxs;
        u32                     hhxw;
        u32                     lhxs;
        u32                     lhxw;
};

struct aplic_src_ctrl {
        u32                     sourcecfg;
        u32                     target;
        u32                     ie;
};

struct aplic_saved_regs {
        u32                     domaincfg;
#ifdef CONFIG_RISCV_M_MODE
        u32                     msiaddr;
        u32                     msiaddrh;
#endif
        struct aplic_src_ctrl   *srcs;
};

struct aplic_priv {
        struct list_head        head;
        struct notifier_block   genpd_nb;
        struct aplic_saved_regs saved_hw_regs;
        struct device           *dev;
        u32                     gsi_base;
        u32                     nr_irqs;
        u32                     nr_idcs;
        u32                     acpi_aplic_id;
        void __iomem            *regs;
        struct aplic_msicfg     msicfg;
};

void aplic_irq_unmask(struct irq_data *d);
void aplic_irq_mask(struct irq_data *d);
int aplic_irq_set_type(struct irq_data *d, unsigned int type);
int aplic_irqdomain_translate(struct irq_fwspec *fwspec, u32 gsi_base,
                              unsigned long *hwirq, unsigned int *type);
void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode);
int aplic_setup_priv(struct aplic_priv *priv, struct device *dev, void __iomem *regs);
void aplic_direct_restore_states(struct aplic_priv *priv);
int aplic_direct_setup(struct device *dev, void __iomem *regs);
#ifdef CONFIG_RISCV_APLIC_MSI
int aplic_msi_setup(struct device *dev, void __iomem *regs);
#else
static inline int aplic_msi_setup(struct device *dev, void __iomem *regs)
{
        return -ENODEV;
}
#endif

#endif
Linux
