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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* LoongArch 7A1000 I/O interrupt controller definitions
* Copyright (c) 2024 Loongson Technology Corporation Limited
*/
#ifndef HW_LOONGARCH_PIC_COMMON_H
#define HW_LOONGARCH_PIC_COMMON_H
#include "hw/pci-host/ls7a.h"
#include "hw/sysbus.h"
#define PCH_PIC_INT_ID 0x00
#define PCH_PIC_INT_ID_VAL 0x7
#define PCH_PIC_INT_ID_VER 0x1
#define PCH_PIC_INT_MASK 0x20
#define PCH_PIC_HTMSI_EN 0x40
#define PCH_PIC_INT_EDGE 0x60
#define PCH_PIC_INT_CLEAR 0x80
#define PCH_PIC_AUTO_CTRL0 0xc0
#define PCH_PIC_AUTO_CTRL1 0xe0
#define PCH_PIC_ROUTE_ENTRY 0x100
#define PCH_PIC_ROUTE_ENTRY_END 0x13f
#define PCH_PIC_HTMSI_VEC 0x200
#define PCH_PIC_HTMSI_VEC_END 0x23f
#define PCH_PIC_INT_REQUEST 0x380
#define PCH_PIC_INT_STATUS 0x3a0
#define PCH_PIC_INT_POL 0x3e0
#define TYPE_LOONGARCH_PIC_COMMON "loongarch_pic_common"
OBJECT_DECLARE_TYPE(LoongArchPICCommonState,
LoongArchPICCommonClass, LOONGARCH_PIC_COMMON)
union LoongArchPIC_ID {
struct {
uint8_t _reserved_0[3];
uint8_t id;
uint8_t version;
uint8_t _reserved_1;
uint8_t irq_num;
uint8_t _reserved_2;
} QEMU_PACKED desc;
uint64_t data;
};
struct LoongArchPICCommonState {
SysBusDevice parent_obj;
qemu_irq parent_irq[64];
union LoongArchPIC_ID id; /* 0x00 interrupt ID register */
uint64_t int_mask; /* 0x020 interrupt mask register */
uint64_t htmsi_en; /* 0x040 1=msi */
uint64_t intedge; /* 0x060 edge=1 level=0 */
uint64_t intclr; /* 0x080 clean edge int, set 1 clean, 0 noused */
uint64_t auto_crtl0; /* 0x0c0 */
uint64_t auto_crtl1; /* 0x0e0 */
uint64_t last_intirr; /* edge detection */
uint64_t intirr; /* 0x380 interrupt request register */
uint64_t intisr; /* 0x3a0 interrupt service register */
/*
* 0x3e0 interrupt level polarity selection
* register 0 for high level trigger
*/
uint64_t int_polarity;
uint8_t route_entry[64]; /* 0x100 - 0x138 */
uint8_t htmsi_vector[64]; /* 0x200 - 0x238 */
MemoryRegion iomem;
unsigned int irq_num;
};
struct LoongArchPICCommonClass {
SysBusDeviceClass parent_class;
DeviceRealize parent_realize;
ResettablePhases parent_phases;
int (*pre_save)(LoongArchPICCommonState *s);
int (*post_load)(LoongArchPICCommonState *s, int version_id);
};
#endif /* HW_LOONGARCH_PIC_COMMON_H */
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