1 files changed, 141 insertions, 0 deletions
diff --git a/include/hw/ppc/spapr_vio.h b/include/hw/ppc/spapr_vio.h
new file mode 100644
index 000000000..4bea87f39
--- /dev/null
+++ b/include/hw/ppc/spapr_vio.h
@@ -0,0 +1,141 @@
+#ifndef HW_SPAPR_VIO_H
+#define HW_SPAPR_VIO_H
+
+/*
+ * QEMU sPAPR VIO bus definitions
+ *
+ * Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
+ * Based on the s390 virtio bus definitions:
+ * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw/ppc/spapr.h"
+#include "sysemu/dma.h"
+#include "hw/irq.h"
+#include "qom/object.h"
+
+#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
+OBJECT_DECLARE_TYPE(SpaprVioDevice, SpaprVioDeviceClass,
+                    VIO_SPAPR_DEVICE)
+
+#define TYPE_SPAPR_VIO_BUS "spapr-vio-bus"
+OBJECT_DECLARE_SIMPLE_TYPE(SpaprVioBus, SPAPR_VIO_BUS)
+
+#define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge"
+
+typedef struct SpaprVioCrq {
+    uint64_t qladdr;
+    uint32_t qsize;
+    uint32_t qnext;
+    int(*SendFunc)(struct SpaprVioDevice *vdev, uint8_t *crq);
+} SpaprVioCrq;
+
+
+struct SpaprVioDeviceClass {
+    DeviceClass parent_class;
+
+    const char *dt_name, *dt_type, *dt_compatible;
+    target_ulong signal_mask;
+    uint32_t rtce_window_size;
+    void (*realize)(SpaprVioDevice *dev, Error **errp);
+    void (*reset)(SpaprVioDevice *dev);
+    int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off);
+    const char *(*get_dt_compatible)(SpaprVioDevice *dev);
+};
+
+struct SpaprVioDevice {
+    DeviceState qdev;
+    uint32_t reg;
+    uint32_t irq;
+    uint64_t signal_state;
+    SpaprVioCrq crq;
+    AddressSpace as;
+    MemoryRegion mrroot;
+    MemoryRegion mrbypass;
+    SpaprTceTable *tcet;
+};
+
+#define DEFINE_SPAPR_PROPERTIES(type, field)           \
+        DEFINE_PROP_UINT32("reg", type, field.reg, -1)
+
+struct SpaprVioBus {
+    BusState bus;
+    uint32_t next_reg;
+};
+
+SpaprVioBus *spapr_vio_bus_init(void);
+SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg);
+void spapr_dt_vdevice(SpaprVioBus *bus, void *fdt);
+gchar *spapr_vio_stdout_path(SpaprVioBus *bus);
+
+static inline void spapr_vio_irq_pulse(SpaprVioDevice *dev)
+{
+    SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+
+    qemu_irq_pulse(spapr_qirq(spapr, dev->irq));
+}
+
+static inline bool spapr_vio_dma_valid(SpaprVioDevice *dev, uint64_t taddr,
+                                       uint32_t size, DMADirection dir)
+{
+    return dma_memory_valid(&dev->as, taddr, size, dir);
+}
+
+static inline int spapr_vio_dma_read(SpaprVioDevice *dev, uint64_t taddr,
+                                     void *buf, uint32_t size)
+{
+    return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ?
+        H_DEST_PARM : H_SUCCESS;
+}
+
+static inline int spapr_vio_dma_write(SpaprVioDevice *dev, uint64_t taddr,
+                                      const void *buf, uint32_t size)
+{
+    return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ?
+        H_DEST_PARM : H_SUCCESS;
+}
+
+static inline int spapr_vio_dma_set(SpaprVioDevice *dev, uint64_t taddr,
+                                    uint8_t c, uint32_t size)
+{
+    return (dma_memory_set(&dev->as, taddr, c, size) != 0) ?
+        H_DEST_PARM : H_SUCCESS;
+}
+
+#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr)))
+
+int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq);
+
+SpaprVioDevice *vty_lookup(SpaprMachineState *spapr, target_ulong reg);
+void vty_putchars(SpaprVioDevice *sdev, uint8_t *buf, int len);
+void spapr_vty_create(SpaprVioBus *bus, Chardev *chardev);
+void spapr_vlan_create(SpaprVioBus *bus, NICInfo *nd);
+void spapr_vscsi_create(SpaprVioBus *bus);
+
+SpaprVioDevice *spapr_vty_get_default(SpaprVioBus *bus);
+
+extern const VMStateDescription vmstate_spapr_vio;
+
+#define VMSTATE_SPAPR_VIO(_f, _s) \
+    VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, SpaprVioDevice)
+
+void spapr_vio_set_bypass(SpaprVioDevice *dev, bool bypass);
+
+#endif /* HW_SPAPR_VIO_H */