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 "hw/ppc/spapr.h"
26#include "sysemu/dma.h"
27
28#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
29#define VIO_SPAPR_DEVICE(obj) \
30 OBJECT_CHECK(SpaprVioDevice, (obj), TYPE_VIO_SPAPR_DEVICE)
31#define VIO_SPAPR_DEVICE_CLASS(klass) \
32 OBJECT_CLASS_CHECK(SpaprVioDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE)
33#define VIO_SPAPR_DEVICE_GET_CLASS(obj) \
34 OBJECT_GET_CLASS(SpaprVioDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE)
35
36#define TYPE_SPAPR_VIO_BUS "spapr-vio-bus"
37#define SPAPR_VIO_BUS(obj) OBJECT_CHECK(SpaprVioBus, (obj), TYPE_SPAPR_VIO_BUS)
38
39#define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge"
40
41typedef struct SpaprVioCrq {
42 uint64_t qladdr;
43 uint32_t qsize;
44 uint32_t qnext;
45 int(*SendFunc)(struct SpaprVioDevice *vdev, uint8_t *crq);
46} SpaprVioCrq;
47
48typedef struct SpaprVioDevice SpaprVioDevice;
49typedef struct SpaprVioBus SpaprVioBus;
50
51typedef struct SpaprVioDeviceClass {
52 DeviceClass parent_class;
53
54 const char *dt_name, *dt_type, *dt_compatible;
55 target_ulong signal_mask;
56 uint32_t rtce_window_size;
57 void (*realize)(SpaprVioDevice *dev, Error **errp);
58 void (*reset)(SpaprVioDevice *dev);
59 int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off);
60} SpaprVioDeviceClass;
61
62struct SpaprVioDevice {
63 DeviceState qdev;
64 uint32_t reg;
65 uint32_t irq;
66 uint64_t signal_state;
67 SpaprVioCrq crq;
68 AddressSpace as;
69 MemoryRegion mrroot;
70 MemoryRegion mrbypass;
71 SpaprTceTable *tcet;
72};
73
74#define DEFINE_SPAPR_PROPERTIES(type, field) \
75 DEFINE_PROP_UINT32("reg", type, field.reg, -1)
76
77struct SpaprVioBus {
78 BusState bus;
79 uint32_t next_reg;
80};
81
82extern SpaprVioBus *spapr_vio_bus_init(void);
83extern SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg);
84void spapr_dt_vdevice(SpaprVioBus *bus, void *fdt);
85extern gchar *spapr_vio_stdout_path(SpaprVioBus *bus);
86
87static inline qemu_irq spapr_vio_qirq(SpaprVioDevice *dev)
88{
89 SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
90
91 return spapr_qirq(spapr, dev->irq);
92}
93
94static inline bool spapr_vio_dma_valid(SpaprVioDevice *dev, uint64_t taddr,
95 uint32_t size, DMADirection dir)
96{
97 return dma_memory_valid(&dev->as, taddr, size, dir);
98}
99
100static inline int spapr_vio_dma_read(SpaprVioDevice *dev, uint64_t taddr,
101 void *buf, uint32_t size)
102{
103 return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ?
104 H_DEST_PARM : H_SUCCESS;
105}
106
107static inline int spapr_vio_dma_write(SpaprVioDevice *dev, uint64_t taddr,
108 const void *buf, uint32_t size)
109{
110 return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ?
111 H_DEST_PARM : H_SUCCESS;
112}
113
114static inline int spapr_vio_dma_set(SpaprVioDevice *dev, uint64_t taddr,
115 uint8_t c, uint32_t size)
116{
117 return (dma_memory_set(&dev->as, taddr, c, size) != 0) ?
118 H_DEST_PARM : H_SUCCESS;
119}
120
121#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val)))
122#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val)))
123#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val)))
124#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val)))
125#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr)))
126
127int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq);
128
129SpaprVioDevice *vty_lookup(SpaprMachineState *spapr, target_ulong reg);
130void vty_putchars(SpaprVioDevice *sdev, uint8_t *buf, int len);
131void spapr_vty_create(SpaprVioBus *bus, Chardev *chardev);
132void spapr_vlan_create(SpaprVioBus *bus, NICInfo *nd);
133void spapr_vscsi_create(SpaprVioBus *bus);
134
135SpaprVioDevice *spapr_vty_get_default(SpaprVioBus *bus);
136
137extern const VMStateDescription vmstate_spapr_vio;
138
139#define VMSTATE_SPAPR_VIO(_f, _s) \
140 VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, SpaprVioDevice)
141
142void spapr_vio_set_bypass(SpaprVioDevice *dev, bool bypass);
143
144#endif /* HW_SPAPR_VIO_H */
145