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

   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
  47 static inline int aplic_msi_setup(struct device *dev, void __iomem *regs)
  48 {
  49         return -ENODEV;
  50 }
  51 #endif
  52
  53 #endif