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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_IPI_H |
| 7 | #define __ASM_KVM_IPI_H |
| 8 | |
| 9 | #include <kvm/iodev.h> |
| 10 | |
| 11 | #define LARCH_INT_IPI 12 |
| 12 | |
| 13 | struct loongarch_ipi { |
| 14 | spinlock_t lock; |
| 15 | struct kvm *kvm; |
| 16 | struct kvm_io_device device; |
| 17 | }; |
| 18 | |
| 19 | struct ipi_state { |
| 20 | spinlock_t lock; |
| 21 | uint32_t status; |
| 22 | uint32_t en; |
| 23 | uint32_t set; |
| 24 | uint32_t clear; |
| 25 | uint64_t buf[4]; |
| 26 | }; |
| 27 | |
| 28 | #define IOCSR_IPI_BASE 0x1000 |
| 29 | #define IOCSR_IPI_SIZE 0x160 |
| 30 | |
| 31 | #define IOCSR_IPI_STATUS 0x000 |
| 32 | #define IOCSR_IPI_EN 0x004 |
| 33 | #define IOCSR_IPI_SET 0x008 |
| 34 | #define IOCSR_IPI_CLEAR 0x00c |
| 35 | #define IOCSR_IPI_BUF_20 0x020 |
| 36 | #define IOCSR_IPI_BUF_28 0x028 |
| 37 | #define IOCSR_IPI_BUF_30 0x030 |
| 38 | #define IOCSR_IPI_BUF_38 0x038 |
| 39 | #define IOCSR_IPI_SEND 0x040 |
| 40 | #define IOCSR_MAIL_SEND 0x048 |
| 41 | #define IOCSR_ANY_SEND 0x158 |
| 42 | |
| 43 | int kvm_loongarch_register_ipi_device(void); |
| 44 | |
| 45 | #endif |
| 46 |
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