qdev: integrate with QEMU Object Model (v2)
[qemu.git] / hw / spapr_vio.h
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 #define SPAPR_VIO_TCE_PAGE_SHIFT 12
25 #define SPAPR_VIO_TCE_PAGE_SIZE (1ULL << SPAPR_VIO_TCE_PAGE_SHIFT)
26 #define SPAPR_VIO_TCE_PAGE_MASK (SPAPR_VIO_TCE_PAGE_SIZE - 1)
27
28 enum VIOsPAPR_TCEAccess {
29 SPAPR_TCE_FAULT = 0,
30 SPAPR_TCE_RO = 1,
31 SPAPR_TCE_WO = 2,
32 SPAPR_TCE_RW = 3,
33 };
34
35 #define SPAPR_VTY_BASE_ADDRESS 0x30000000
36
37 struct VIOsPAPRDevice;
38
39 typedef struct VIOsPAPR_RTCE {
40 uint64_t tce;
41 } VIOsPAPR_RTCE;
42
43 typedef struct VIOsPAPR_CRQ {
44 uint64_t qladdr;
45 uint32_t qsize;
46 uint32_t qnext;
47 int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq);
48 } VIOsPAPR_CRQ;
49
50 typedef struct VIOsPAPRDevice {
51 DeviceState qdev;
52 uint32_t reg;
53 uint32_t flags;
54 #define VIO_PAPR_FLAG_DMA_BYPASS 0x1
55 qemu_irq qirq;
56 uint32_t vio_irq_num;
57 target_ulong signal_state;
58 uint32_t rtce_window_size;
59 VIOsPAPR_RTCE *rtce_table;
60 int kvmtce_fd;
61 VIOsPAPR_CRQ crq;
62 } VIOsPAPRDevice;
63
64 #define DEFINE_SPAPR_PROPERTIES(type, field, default_reg, default_dma_window) \
65 DEFINE_PROP_UINT32("reg", type, field.reg, default_reg), \
66 DEFINE_PROP_UINT32("dma-window", type, field.rtce_window_size, \
67 default_dma_window)
68
69 typedef struct VIOsPAPRBus {
70 BusState bus;
71 } VIOsPAPRBus;
72
73 typedef struct {
74 DeviceInfo qdev;
75 const char *dt_name, *dt_type, *dt_compatible;
76 target_ulong signal_mask;
77 int (*init)(VIOsPAPRDevice *dev);
78 int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
79 } VIOsPAPRDeviceInfo;
80
81 extern VIOsPAPRBus *spapr_vio_bus_init(void);
82 extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
83 extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
84 extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
85 extern int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus);
86
87 extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
88
89 int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
90 target_ulong len,
91 enum VIOsPAPR_TCEAccess access);
92
93 int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
94 void *buf, uint32_t size);
95 int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
96 const void *buf, uint32_t size);
97 int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size);
98 void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val);
99 void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val);
100 void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val);
101 void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val);
102 uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr);
103
104 int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
105
106 void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
107 void spapr_vty_create(VIOsPAPRBus *bus, uint32_t reg, CharDriverState *chardev);
108 void spapr_vlan_create(VIOsPAPRBus *bus, uint32_t reg, NICInfo *nd);
109 void spapr_vscsi_create(VIOsPAPRBus *bus, uint32_t reg);
110
111 VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus);
112
113 int spapr_tce_set_bypass(uint32_t unit, uint32_t enable);
114 void spapr_vio_quiesce(void);
115
116 #endif /* _HW_SPAPR_VIO_H */