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
18 struct aplic_msicfg {
19 phys_addr_t base_ppn;
20 u32 hhxs;
21 u32 hhxw;
22 u32 lhxs;
23 u32 lhxw;
24 };
25
26 struct 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
36 void aplic_irq_unmask(struct irq_data *d);
37 void aplic_irq_mask(struct irq_data *d);
38 int aplic_irq_set_type(struct irq_data *d, unsigned int type);
39 int aplic_irqdomain_translate(struct irq_fwspec *fwspec, u32 gsi_base,
40 unsigned long *hwirq, unsigned int *type);
41 void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode);
42 int aplic_setup_priv(struct aplic_priv *priv, struct device *dev, void __iomem *regs);
43 int aplic_direct_setup(struct device *dev, void __iomem *regs);
44 #ifdef CONFIG_RISCV_APLIC_MSI
45 int aplic_msi_setup(struct device *dev, void __iomem *regs);
46 #else
aplic_msi_setup(struct device * dev,void __iomem * regs)47 static inline int aplic_msi_setup(struct device *dev, void __iomem *regs)
48 {
49 return -ENODEV;
50 }
51 #endif
52
53 #endif
54