1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * LoongArch 7A1000 I/O interrupt controller definitions
4  *
5  * Copyright (c) 2021 Loongson Technology Corporation Limited
6  */
7 
8 #include "hw/sysbus.h"
9 
10 #define TYPE_LOONGARCH_PCH_PIC "loongarch_pch_pic"
11 #define PCH_PIC_NAME(name) TYPE_LOONGARCH_PCH_PIC#name
12 OBJECT_DECLARE_SIMPLE_TYPE(LoongArchPCHPIC, LOONGARCH_PCH_PIC)
13 
14 #define PCH_PIC_INT_ID_VAL              0x7000000UL
15 #define PCH_PIC_INT_ID_VER              0x1UL
16 
17 #define PCH_PIC_INT_ID_LO               0x00
18 #define PCH_PIC_INT_ID_HI               0x04
19 #define PCH_PIC_INT_MASK_LO             0x20
20 #define PCH_PIC_INT_MASK_HI             0x24
21 #define PCH_PIC_HTMSI_EN_LO             0x40
22 #define PCH_PIC_HTMSI_EN_HI             0x44
23 #define PCH_PIC_INT_EDGE_LO             0x60
24 #define PCH_PIC_INT_EDGE_HI             0x64
25 #define PCH_PIC_INT_CLEAR_LO            0x80
26 #define PCH_PIC_INT_CLEAR_HI            0x84
27 #define PCH_PIC_AUTO_CTRL0_LO           0xc0
28 #define PCH_PIC_AUTO_CTRL0_HI           0xc4
29 #define PCH_PIC_AUTO_CTRL1_LO           0xe0
30 #define PCH_PIC_AUTO_CTRL1_HI           0xe4
31 #define PCH_PIC_ROUTE_ENTRY_OFFSET      0x100
32 #define PCH_PIC_ROUTE_ENTRY_END         0x13f
33 #define PCH_PIC_HTMSI_VEC_OFFSET        0x200
34 #define PCH_PIC_HTMSI_VEC_END           0x23f
35 #define PCH_PIC_INT_STATUS_LO           0x3a0
36 #define PCH_PIC_INT_STATUS_HI           0x3a4
37 #define PCH_PIC_INT_POL_LO              0x3e0
38 #define PCH_PIC_INT_POL_HI              0x3e4
39 
40 #define STATUS_LO_START                 0
41 #define STATUS_HI_START                 0x4
42 #define POL_LO_START                    0x40
43 #define POL_HI_START                    0x44
44 struct LoongArchPCHPIC {
45     SysBusDevice parent_obj;
46     qemu_irq parent_irq[64];
47     uint64_t int_mask; /*0x020 interrupt mask register*/
48     uint64_t htmsi_en; /*0x040 1=msi*/
49     uint64_t intedge; /*0x060 edge=1 level  =0*/
50     uint64_t intclr; /*0x080 for clean edge int,set 1 clean,set 0 is noused*/
51     uint64_t auto_crtl0; /*0x0c0*/
52     uint64_t auto_crtl1; /*0x0e0*/
53     uint64_t last_intirr;    /* edge detection */
54     uint64_t intirr; /* 0x380 interrupt request register */
55     uint64_t intisr; /* 0x3a0 interrupt service register */
56     /*
57      * 0x3e0 interrupt level polarity selection
58      * register 0 for high level trigger
59      */
60     uint64_t int_polarity;
61 
62     uint8_t route_entry[64]; /*0x100 - 0x138*/
63     uint8_t htmsi_vector[64]; /*0x200 - 0x238*/
64 
65     MemoryRegion iomem32_low;
66     MemoryRegion iomem32_high;
67     MemoryRegion iomem8;
68     unsigned int irq_num;
69 };
70