10d09e41aSPaolo Bonzini /*
20d09e41aSPaolo Bonzini * msi.h
30d09e41aSPaolo Bonzini *
40d09e41aSPaolo Bonzini * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
50d09e41aSPaolo Bonzini * VA Linux Systems Japan K.K.
60d09e41aSPaolo Bonzini *
70d09e41aSPaolo Bonzini * This program is free software; you can redistribute it and/or modify
80d09e41aSPaolo Bonzini * it under the terms of the GNU General Public License as published by
90d09e41aSPaolo Bonzini * the Free Software Foundation; either version 2 of the License, or
100d09e41aSPaolo Bonzini * (at your option) any later version.
110d09e41aSPaolo Bonzini
120d09e41aSPaolo Bonzini * This program is distributed in the hope that it will be useful,
130d09e41aSPaolo Bonzini * but WITHOUT ANY WARRANTY; without even the implied warranty of
140d09e41aSPaolo Bonzini * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
150d09e41aSPaolo Bonzini * GNU General Public License for more details.
160d09e41aSPaolo Bonzini
170d09e41aSPaolo Bonzini * You should have received a copy of the GNU General Public License along
180d09e41aSPaolo Bonzini * with this program; if not, see <http://www.gnu.org/licenses/>.
190d09e41aSPaolo Bonzini */
200d09e41aSPaolo Bonzini
210d09e41aSPaolo Bonzini #ifndef QEMU_MSI_H
220d09e41aSPaolo Bonzini #define QEMU_MSI_H
230d09e41aSPaolo Bonzini
24edf5ca5dSMarkus Armbruster #include "hw/pci/pci_device.h"
250d09e41aSPaolo Bonzini
260d09e41aSPaolo Bonzini struct MSIMessage {
270d09e41aSPaolo Bonzini uint64_t address;
280d09e41aSPaolo Bonzini uint32_t data;
290d09e41aSPaolo Bonzini };
300d09e41aSPaolo Bonzini
31226419d6SMichael S. Tsirkin extern bool msi_nonbroken;
320d09e41aSPaolo Bonzini
330d09e41aSPaolo Bonzini void msi_set_message(PCIDevice *dev, MSIMessage msg);
340d09e41aSPaolo Bonzini MSIMessage msi_get_message(PCIDevice *dev, unsigned int vector);
350d09e41aSPaolo Bonzini bool msi_enabled(const PCIDevice *dev);
36*6096cf78SDavid Woodhouse void msi_set_enabled(PCIDevice *dev);
370d09e41aSPaolo Bonzini int msi_init(struct PCIDevice *dev, uint8_t offset,
381108b2f8SCao jin unsigned int nr_vectors, bool msi64bit,
391108b2f8SCao jin bool msi_per_vector_mask, Error **errp);
400d09e41aSPaolo Bonzini void msi_uninit(struct PCIDevice *dev);
410d09e41aSPaolo Bonzini void msi_reset(PCIDevice *dev);
42afa26eccSPeter Xu bool msi_is_masked(const PCIDevice *dev, unsigned int vector);
430d09e41aSPaolo Bonzini void msi_notify(PCIDevice *dev, unsigned int vector);
4438d40ff1SPavel Fedin void msi_send_message(PCIDevice *dev, MSIMessage msg);
450d09e41aSPaolo Bonzini void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len);
460d09e41aSPaolo Bonzini unsigned int msi_nr_vectors_allocated(const PCIDevice *dev);
4708cf3dc6SJagannathan Raman void msi_set_mask(PCIDevice *dev, int vector, bool mask, Error **errp);
480d09e41aSPaolo Bonzini
msi_present(const PCIDevice * dev)490d09e41aSPaolo Bonzini static inline bool msi_present(const PCIDevice *dev)
500d09e41aSPaolo Bonzini {
510d09e41aSPaolo Bonzini return dev->cap_present & QEMU_PCI_CAP_MSI;
520d09e41aSPaolo Bonzini }
530d09e41aSPaolo Bonzini
540d09e41aSPaolo Bonzini #endif /* QEMU_MSI_H */
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