1 | /* |
2 | * msi.h |
3 | * |
4 | * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp> |
5 | * VA Linux Systems Japan K.K. |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
19 | */ |
20 | |
21 | #ifndef QEMU_MSI_H |
22 | #define QEMU_MSI_H |
23 | |
24 | #include "hw/pci/pci.h" |
25 | |
26 | struct MSIMessage { |
27 | uint64_t address; |
28 | uint32_t data; |
29 | }; |
30 | |
31 | extern bool msi_nonbroken; |
32 | |
33 | void msi_set_message(PCIDevice *dev, MSIMessage msg); |
34 | MSIMessage msi_get_message(PCIDevice *dev, unsigned int vector); |
35 | bool msi_enabled(const PCIDevice *dev); |
36 | int msi_init(struct PCIDevice *dev, uint8_t offset, |
37 | unsigned int nr_vectors, bool msi64bit, |
38 | bool msi_per_vector_mask, Error **errp); |
39 | void msi_uninit(struct PCIDevice *dev); |
40 | void msi_reset(PCIDevice *dev); |
41 | bool msi_is_masked(const PCIDevice *dev, unsigned int vector); |
42 | void msi_notify(PCIDevice *dev, unsigned int vector); |
43 | void msi_send_message(PCIDevice *dev, MSIMessage msg); |
44 | void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len); |
45 | unsigned int msi_nr_vectors_allocated(const PCIDevice *dev); |
46 | |
47 | static inline bool msi_present(const PCIDevice *dev) |
48 | { |
49 | return dev->cap_present & QEMU_PCI_CAP_MSI; |
50 | } |
51 | |
52 | #endif /* QEMU_MSI_H */ |
53 | |