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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* |
| 3 | * Copyright (C) 2024 Loongson Technology Corporation Limited |
| 4 | */ |
| 5 | |
| 6 | #ifndef __ASM_KVM_PCH_PIC_H |
| 7 | #define __ASM_KVM_PCH_PIC_H |
| 8 | |
| 9 | #include <kvm/iodev.h> |
| 10 | |
| 11 | #define PCH_PIC_SIZE 0x3e8 |
| 12 | |
| 13 | #define PCH_PIC_INT_ID_START 0x0 |
| 14 | #define PCH_PIC_INT_ID_END 0x7 |
| 15 | #define PCH_PIC_MASK_START 0x20 |
| 16 | #define PCH_PIC_MASK_END 0x27 |
| 17 | #define PCH_PIC_HTMSI_EN_START 0x40 |
| 18 | #define PCH_PIC_HTMSI_EN_END 0x47 |
| 19 | #define PCH_PIC_EDGE_START 0x60 |
| 20 | #define PCH_PIC_EDGE_END 0x67 |
| 21 | #define PCH_PIC_CLEAR_START 0x80 |
| 22 | #define PCH_PIC_CLEAR_END 0x87 |
| 23 | #define PCH_PIC_AUTO_CTRL0_START 0xc0 |
| 24 | #define PCH_PIC_AUTO_CTRL0_END 0xc7 |
| 25 | #define PCH_PIC_AUTO_CTRL1_START 0xe0 |
| 26 | #define PCH_PIC_AUTO_CTRL1_END 0xe7 |
| 27 | #define PCH_PIC_ROUTE_ENTRY_START 0x100 |
| 28 | #define PCH_PIC_ROUTE_ENTRY_END 0x13f |
| 29 | #define PCH_PIC_HTMSI_VEC_START 0x200 |
| 30 | #define PCH_PIC_HTMSI_VEC_END 0x23f |
| 31 | #define PCH_PIC_INT_IRR_START 0x380 |
| 32 | #define PCH_PIC_INT_IRR_END 0x38f |
| 33 | #define PCH_PIC_INT_ISR_START 0x3a0 |
| 34 | #define PCH_PIC_INT_ISR_END 0x3af |
| 35 | #define PCH_PIC_POLARITY_START 0x3e0 |
| 36 | #define PCH_PIC_POLARITY_END 0x3e7 |
| 37 | #define PCH_PIC_INT_ID_VAL 0x7UL |
| 38 | #define PCH_PIC_INT_ID_VER 0x1UL |
| 39 | |
| 40 | union pch_pic_id { |
| 41 | struct { |
| 42 | uint8_t reserved_0[3]; |
| 43 | uint8_t id; |
| 44 | uint8_t version; |
| 45 | uint8_t reserved_1; |
| 46 | uint8_t irq_num; |
| 47 | uint8_t reserved_2; |
| 48 | } desc; |
| 49 | uint64_t data; |
| 50 | }; |
| 51 | |
| 52 | struct loongarch_pch_pic { |
| 53 | spinlock_t lock; |
| 54 | struct kvm *kvm; |
| 55 | struct kvm_io_device device; |
| 56 | union pch_pic_id id; |
| 57 | uint64_t mask; /* 1:disable irq, 0:enable irq */ |
| 58 | uint64_t htmsi_en; /* 1:msi */ |
| 59 | uint64_t edge; /* 1:edge triggered, 0:level triggered */ |
| 60 | uint64_t auto_ctrl0; /* only use default value 00b */ |
| 61 | uint64_t auto_ctrl1; /* only use default value 00b */ |
| 62 | uint64_t last_intirr; /* edge detection */ |
| 63 | uint64_t irr; /* interrupt request register */ |
| 64 | uint64_t isr; /* interrupt service register */ |
| 65 | uint64_t polarity; /* 0: high level trigger, 1: low level trigger */ |
| 66 | uint8_t route_entry[64]; /* default value 0, route to int0: eiointc */ |
| 67 | uint8_t htmsi_vector[64]; /* irq route table for routing to eiointc */ |
| 68 | uint64_t pch_pic_base; |
| 69 | }; |
| 70 | |
| 71 | int kvm_loongarch_register_pch_pic_device(void); |
| 72 | void pch_pic_set_irq(struct loongarch_pch_pic *s, int irq, int level); |
| 73 | void pch_msi_set_irq(struct kvm *kvm, int irq, int level); |
| 74 | |
| 75 | #endif /* __ASM_KVM_PCH_PIC_H */ |
| 76 |
Warning: This file is not a C or C++ file. It does not have highlighting.