tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2021 Western Digital Corporation or its affiliates.
4 * Copyright (C) 2022 Ventana Micro Systems Inc.
5 */
6
7#ifndef _IRQ_RISCV_APLIC_MAIN_H
8#define _IRQ_RISCV_APLIC_MAIN_H
9
10#include <linux/device.h>
11#include <linux/io.h>
12#include <linux/irq.h>
13#include <linux/irqdomain.h>
14#include <linux/fwnode.h>
15
16#define APLIC_DEFAULT_PRIORITY 1
17
18struct aplic_msicfg {
19 phys_addr_t base_ppn;
20 u32 hhxs;
21 u32 hhxw;
22 u32 lhxs;
23 u32 lhxw;
24};
25
26struct aplic_priv {
27 struct device *dev;
28 u32 gsi_base;
29 u32 nr_irqs;
30 u32 nr_idcs;
31 u32 acpi_aplic_id;
32 void __iomem *regs;
33 struct aplic_msicfg msicfg;
34};
35
36void aplic_irq_unmask(struct irq_data *d);
37void aplic_irq_mask(struct irq_data *d);
38int aplic_irq_set_type(struct irq_data *d, unsigned int type);
39int aplic_irqdomain_translate(struct irq_fwspec *fwspec, u32 gsi_base,
40 unsigned long *hwirq, unsigned int *type);
41void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode);
42int aplic_setup_priv(struct aplic_priv *priv, struct device *dev, void __iomem *regs);
43int aplic_direct_setup(struct device *dev, void __iomem *regs);
44#ifdef CONFIG_RISCV_APLIC_MSI
45int aplic_msi_setup(struct device *dev, void __iomem *regs);
46#else
47static inline int aplic_msi_setup(struct device *dev, void __iomem *regs)
48{
49 return -ENODEV;
50}
51#endif
52
53#endif