LXR qemu/include/hw/ppc/spapr

   1#ifndef HW_SPAPR_VIO_H
   2#define HW_SPAPR_VIO_H
   3
   4/*
   5 * QEMU sPAPR VIO bus definitions
   6 *
   7 * Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
   8 * Based on the s390 virtio bus definitions:
   9 * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
  10 *
  11 * This library is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU Lesser General Public
  13 * License as published by the Free Software Foundation; either
  14 * version 2 of the License, or (at your option) any later version.
  15 *
  16 * This library is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 * Lesser General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU Lesser General Public
  22 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25#include "sysemu/dma.h"
  26
  27#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
  28#define VIO_SPAPR_DEVICE(obj) \
  29     OBJECT_CHECK(SpaprVioDevice, (obj), TYPE_VIO_SPAPR_DEVICE)
  30#define VIO_SPAPR_DEVICE_CLASS(klass) \
  31     OBJECT_CLASS_CHECK(SpaprVioDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE)
  32#define VIO_SPAPR_DEVICE_GET_CLASS(obj) \
  33     OBJECT_GET_CLASS(SpaprVioDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE)
  34
  35#define TYPE_SPAPR_VIO_BUS "spapr-vio-bus"
  36#define SPAPR_VIO_BUS(obj) OBJECT_CHECK(SpaprVioBus, (obj), TYPE_SPAPR_VIO_BUS)
  37
  38#define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge"
  39
  40typedef struct SpaprVioCrq {
  41    uint64_t qladdr;
  42    uint32_t qsize;
  43    uint32_t qnext;
  44    int(*SendFunc)(struct SpaprVioDevice *vdev, uint8_t *crq);
  45} SpaprVioCrq;
  46
  47typedef struct SpaprVioDevice SpaprVioDevice;
  48typedef struct SpaprVioBus SpaprVioBus;
  49
  50typedef struct SpaprVioDeviceClass {
  51    DeviceClass parent_class;
  52
  53    const char *dt_name, *dt_type, *dt_compatible;
  54    target_ulong signal_mask;
  55    uint32_t rtce_window_size;
  56    void (*realize)(SpaprVioDevice *dev, Error **errp);
  57    void (*reset)(SpaprVioDevice *dev);
  58    int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off);
  59} SpaprVioDeviceClass;
  60
  61struct SpaprVioDevice {
  62    DeviceState qdev;
  63    uint32_t reg;
  64    uint32_t irq;
  65    uint64_t signal_state;
  66    SpaprVioCrq crq;
  67    AddressSpace as;
  68    MemoryRegion mrroot;
  69    MemoryRegion mrbypass;
  70    SpaprTceTable *tcet;
  71};
  72
  73#define DEFINE_SPAPR_PROPERTIES(type, field)           \
  74        DEFINE_PROP_UINT32("reg", type, field.reg, -1)
  75
  76struct SpaprVioBus {
  77    BusState bus;
  78    uint32_t next_reg;
  79};
  80
  81extern SpaprVioBus *spapr_vio_bus_init(void);
  82extern SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg);
  83void spapr_dt_vdevice(SpaprVioBus *bus, void *fdt);
  84extern gchar *spapr_vio_stdout_path(SpaprVioBus *bus);
  85
  86static inline qemu_irq spapr_vio_qirq(SpaprVioDevice *dev)
  87{
  88    SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
  89
  90    return spapr_qirq(spapr, dev->irq);
  91}
  92
  93static inline bool spapr_vio_dma_valid(SpaprVioDevice *dev, uint64_t taddr,
  94                                       uint32_t size, DMADirection dir)
  95{
  96    return dma_memory_valid(&dev->as, taddr, size, dir);
  97}
  98
  99static inline int spapr_vio_dma_read(SpaprVioDevice *dev, uint64_t taddr,
 100                                     void *buf, uint32_t size)
 101{
 102    return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ?
 103        H_DEST_PARM : H_SUCCESS;
 104}
 105
 106static inline int spapr_vio_dma_write(SpaprVioDevice *dev, uint64_t taddr,
 107                                      const void *buf, uint32_t size)
 108{
 109    return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ?
 110        H_DEST_PARM : H_SUCCESS;
 111}
 112
 113static inline int spapr_vio_dma_set(SpaprVioDevice *dev, uint64_t taddr,
 114                                    uint8_t c, uint32_t size)
 115{
 116    return (dma_memory_set(&dev->as, taddr, c, size) != 0) ?
 117        H_DEST_PARM : H_SUCCESS;
 118}
 119
 120#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val)))
 121#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val)))
 122#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val)))
 123#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val)))
 124#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr)))
 125
 126int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq);
 127
 128SpaprVioDevice *vty_lookup(SpaprMachineState *spapr, target_ulong reg);
 129void vty_putchars(SpaprVioDevice *sdev, uint8_t *buf, int len);
 130void spapr_vty_create(SpaprVioBus *bus, Chardev *chardev);
 131void spapr_vlan_create(SpaprVioBus *bus, NICInfo *nd);
 132void spapr_vscsi_create(SpaprVioBus *bus);
 133
 134SpaprVioDevice *spapr_vty_get_default(SpaprVioBus *bus);
 135
 136extern const VMStateDescription vmstate_spapr_vio;
 137
 138#define VMSTATE_SPAPR_VIO(_f, _s) \
 139    VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, SpaprVioDevice)
 140
 141void spapr_vio_set_bypass(SpaprVioDevice *dev, bool bypass);
 142
 143#endif /* HW_SPAPR_VIO_H */
 144