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 void __iomem *regs; 32 struct aplic_msicfg msicfg; 33 }; 34 35 void aplic_irq_unmask(struct irq_data *d); 36 void aplic_irq_mask(struct irq_data *d); 37 int aplic_irq_set_type(struct irq_data *d, unsigned int type); 38 int aplic_irqdomain_translate(struct irq_fwspec *fwspec, u32 gsi_base, 39 unsigned long *hwirq, unsigned int *type); 40 void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode); 41 int aplic_setup_priv(struct aplic_priv *priv, struct device *dev, void __iomem *regs); 42 int aplic_direct_setup(struct device *dev, void __iomem *regs); 43 #ifdef CONFIG_RISCV_APLIC_MSI 44 int aplic_msi_setup(struct device *dev, void __iomem *regs); 45 #else 46 static inline int aplic_msi_setup(struct device *dev, void __iomem *regs) 47 { 48 return -ENODEV; 49 } 50 #endif 51 52 #endif 53