LXR qemu/include/hw/ppc/spapr

   1#ifndef _HW_SPAPR_VIO_H
   2#define _HW_SPAPR_VIO_H
   3/*
   4 * QEMU sPAPR VIO bus definitions
   5 *
   6 * Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
   7 * Based on the s390 virtio bus definitions:
   8 * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
   9 *
  10 * This library is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU Lesser General Public
  12 * License as published by the Free Software Foundation; either
  13 * version 2 of the License, or (at your option) any later version.
  14 *
  15 * This library is distributed in the hope that it will be useful,
  16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 * Lesser General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU Lesser General Public
  21 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24#include "sysemu/dma.h"
  25
  26#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
  27#define VIO_SPAPR_DEVICE(obj) \
  28     OBJECT_CHECK(VIOsPAPRDevice, (obj), TYPE_VIO_SPAPR_DEVICE)
  29#define VIO_SPAPR_DEVICE_CLASS(klass) \
  30     OBJECT_CLASS_CHECK(VIOsPAPRDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE)
  31#define VIO_SPAPR_DEVICE_GET_CLASS(obj) \
  32     OBJECT_GET_CLASS(VIOsPAPRDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE)
  33
  34#define TYPE_SPAPR_VIO_BUS "spapr-vio-bus"
  35#define SPAPR_VIO_BUS(obj) OBJECT_CHECK(VIOsPAPRBus, (obj), TYPE_SPAPR_VIO_BUS)
  36
  37#define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge"
  38
  39typedef struct VIOsPAPR_CRQ {
  40    uint64_t qladdr;
  41    uint32_t qsize;
  42    uint32_t qnext;
  43    int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq);
  44} VIOsPAPR_CRQ;
  45
  46typedef struct VIOsPAPRDevice VIOsPAPRDevice;
  47typedef struct VIOsPAPRBus VIOsPAPRBus;
  48
  49typedef struct VIOsPAPRDeviceClass {
  50    DeviceClass parent_class;
  51
  52    const char *dt_name, *dt_type, *dt_compatible;
  53    target_ulong signal_mask;
  54    uint32_t rtce_window_size;
  55    void (*realize)(VIOsPAPRDevice *dev, Error **errp);
  56    void (*reset)(VIOsPAPRDevice *dev);
  57    int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
  58} VIOsPAPRDeviceClass;
  59
  60struct VIOsPAPRDevice {
  61    DeviceState qdev;
  62    uint32_t reg;
  63    uint32_t irq;
  64    uint64_t signal_state;
  65    VIOsPAPR_CRQ crq;
  66    AddressSpace as;
  67    MemoryRegion mrroot;
  68    MemoryRegion mrbypass;
  69    sPAPRTCETable *tcet;
  70};
  71
  72#define DEFINE_SPAPR_PROPERTIES(type, field)           \
  73        DEFINE_PROP_UINT32("reg", type, field.reg, -1)
  74
  75struct VIOsPAPRBus {
  76    BusState bus;
  77    uint32_t next_reg;
  78    int (*init)(VIOsPAPRDevice *dev);
  79    int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
  80};
  81
  82extern VIOsPAPRBus *spapr_vio_bus_init(void);
  83extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
  84extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
  85extern int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus);
  86
  87extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
  88
  89static inline qemu_irq spapr_vio_qirq(VIOsPAPRDevice *dev)
  90{
  91    sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
  92
  93    return xics_get_qirq(spapr->icp, dev->irq);
  94}
  95
  96static inline bool spapr_vio_dma_valid(VIOsPAPRDevice *dev, uint64_t taddr,
  97                                       uint32_t size, DMADirection dir)
  98{
  99    return dma_memory_valid(&dev->as, taddr, size, dir);
 100}
 101
 102static inline int spapr_vio_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
 103                                     void *buf, uint32_t size)
 104{
 105    return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ?
 106        H_DEST_PARM : H_SUCCESS;
 107}
 108
 109static inline int spapr_vio_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
 110                                      const void *buf, uint32_t size)
 111{
 112    return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ?
 113        H_DEST_PARM : H_SUCCESS;
 114}
 115
 116static inline int spapr_vio_dma_set(VIOsPAPRDevice *dev, uint64_t taddr,
 117                                    uint8_t c, uint32_t size)
 118{
 119    return (dma_memory_set(&dev->as, taddr, c, size) != 0) ?
 120        H_DEST_PARM : H_SUCCESS;
 121}
 122
 123#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val)))
 124#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val)))
 125#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val)))
 126#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val)))
 127#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr)))
 128
 129int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
 130
 131VIOsPAPRDevice *vty_lookup(sPAPRMachineState *spapr, target_ulong reg);
 132void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
 133void spapr_vty_create(VIOsPAPRBus *bus, CharDriverState *chardev);
 134void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd);
 135void spapr_vscsi_create(VIOsPAPRBus *bus);
 136
 137VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus);
 138
 139void spapr_vio_quiesce(void);
 140
 141extern const VMStateDescription vmstate_spapr_vio;
 142
 143#define VMSTATE_SPAPR_VIO(_f, _s) \
 144    VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, VIOsPAPRDevice)
 145
 146void spapr_vio_set_bypass(VIOsPAPRDevice *dev, bool bypass);
 147
 148#endif /* _HW_SPAPR_VIO_H */
 149