| 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_device.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 | void msi_set_enabled(PCIDevice *dev); |
| 37 | int msi_init(struct PCIDevice *dev, uint8_t offset, |
| 38 | unsigned int nr_vectors, bool msi64bit, |
| 39 | bool msi_per_vector_mask, Error **errp); |
| 40 | void msi_uninit(struct PCIDevice *dev); |
| 41 | void msi_reset(PCIDevice *dev); |
| 42 | bool msi_is_masked(const PCIDevice *dev, unsigned int vector); |
| 43 | void msi_notify(PCIDevice *dev, unsigned int vector); |
| 44 | void msi_send_message(PCIDevice *dev, MSIMessage msg); |
| 45 | void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len); |
| 46 | unsigned int msi_nr_vectors_allocated(const PCIDevice *dev); |
| 47 | void msi_set_mask(PCIDevice *dev, int vector, bool mask, Error **errp); |
| 48 | |
| 49 | static inline bool msi_present(const PCIDevice *dev) |
| 50 | { |
| 51 | return dev->cap_present & QEMU_PCI_CAP_MSI; |
| 52 | } |
| 53 | |
| 54 | #endif /* QEMU_MSI_H */ |