LXR qemu/hw/msi.h

   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 "qemu-common.h"
  25#include "pci.h"
  26
  27bool msi_enabled(const PCIDevice *dev);
  28int msi_init(struct PCIDevice *dev, uint8_t offset,
  29             unsigned int nr_vectors, bool msi64bit, bool msi_per_vector_mask);
  30void msi_uninit(struct PCIDevice *dev);
  31void msi_reset(PCIDevice *dev);
  32void msi_notify(PCIDevice *dev, unsigned int vector);
  33void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len);
  34unsigned int msi_nr_vectors_allocated(const PCIDevice *dev);
  35
  36static inline bool msi_present(const PCIDevice *dev)
  37{
  38    return dev->cap_present & QEMU_PCI_CAP_MSI;
  39}
  40
  41#endif /* QEMU_MSI_H */
  42