1#ifndef HW_SPAPR_VIO_H
2#define HW_SPAPR_VIO_H
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25#include "hw/ppc/spapr.h"
26#include "sysemu/dma.h"
27#include "hw/irq.h"
28#include "qom/object.h"
29
30#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
31OBJECT_DECLARE_TYPE(SpaprVioDevice, SpaprVioDeviceClass,
32 VIO_SPAPR_DEVICE)
33
34#define TYPE_SPAPR_VIO_BUS "spapr-vio-bus"
35OBJECT_DECLARE_SIMPLE_TYPE(SpaprVioBus, SPAPR_VIO_BUS)
36
37#define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge"
38
39typedef struct SpaprVioCrq {
40 uint64_t qladdr;
41 uint32_t qsize;
42 uint32_t qnext;
43 int(*SendFunc)(struct SpaprVioDevice *vdev, uint8_t *crq);
44} SpaprVioCrq;
45
46
47struct SpaprVioDeviceClass {
48 DeviceClass parent_class;
49
50 const char *dt_name, *dt_type, *dt_compatible;
51 target_ulong signal_mask;
52 uint32_t rtce_window_size;
53 void (*realize)(SpaprVioDevice *dev, Error **errp);
54 void (*reset)(SpaprVioDevice *dev);
55 int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off);
56 const char *(*get_dt_compatible)(SpaprVioDevice *dev);
57};
58
59struct SpaprVioDevice {
60 DeviceState qdev;
61 uint32_t reg;
62 uint32_t irq;
63 uint64_t signal_state;
64 SpaprVioCrq crq;
65 AddressSpace as;
66 MemoryRegion mrroot;
67 MemoryRegion mrbypass;
68 SpaprTceTable *tcet;
69};
70
71#define DEFINE_SPAPR_PROPERTIES(type, field) \
72 DEFINE_PROP_UINT32("reg", type, field.reg, -1)
73
74struct SpaprVioBus {
75 BusState bus;
76 uint32_t next_reg;
77};
78
79SpaprVioBus *spapr_vio_bus_init(void);
80SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg);
81void spapr_dt_vdevice(SpaprVioBus *bus, void *fdt);
82gchar *spapr_vio_stdout_path(SpaprVioBus *bus);
83
84static inline void spapr_vio_irq_pulse(SpaprVioDevice *dev)
85{
86 SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
87
88 qemu_irq_pulse(spapr_qirq(spapr, dev->irq));
89}
90
91static inline bool spapr_vio_dma_valid(SpaprVioDevice *dev, uint64_t taddr,
92 uint32_t size, DMADirection dir)
93{
94 return dma_memory_valid(&dev->as, taddr, size, dir, MEMTXATTRS_UNSPECIFIED);
95}
96
97static inline int spapr_vio_dma_read(SpaprVioDevice *dev, uint64_t taddr,
98 void *buf, uint32_t size)
99{
100 return (dma_memory_read(&dev->as, taddr,
101 buf, size, MEMTXATTRS_UNSPECIFIED) != 0) ?
102 H_DEST_PARM : H_SUCCESS;
103}
104
105static inline int spapr_vio_dma_write(SpaprVioDevice *dev, uint64_t taddr,
106 const void *buf, uint32_t size)
107{
108 return (dma_memory_write(&dev->as, taddr,
109 buf, size, MEMTXATTRS_UNSPECIFIED) != 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,
117 c, size, MEMTXATTRS_UNSPECIFIED) != 0) ?
118 H_DEST_PARM : H_SUCCESS;
119}
120
121#define vio_stb(_dev, _addr, _val) \
122 (stb_dma(&(_dev)->as, (_addr), (_val), MEMTXATTRS_UNSPECIFIED))
123#define vio_sth(_dev, _addr, _val) \
124 (stw_be_dma(&(_dev)->as, (_addr), (_val), MEMTXATTRS_UNSPECIFIED))
125#define vio_stl(_dev, _addr, _val) \
126 (stl_be_dma(&(_dev)->as, (_addr), (_val), MEMTXATTRS_UNSPECIFIED))
127#define vio_stq(_dev, _addr, _val) \
128 (stq_be_dma(&(_dev)->as, (_addr), (_val), MEMTXATTRS_UNSPECIFIED))
129#define vio_ldq(_dev, _addr) \
130 ({ \
131 uint64_t _val; \
132 ldq_be_dma(&(_dev)->as, (_addr), &_val, MEMTXATTRS_UNSPECIFIED); \
133 _val; \
134 })
135
136int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq);
137
138SpaprVioDevice *vty_lookup(SpaprMachineState *spapr, target_ulong reg);
139void vty_putchars(SpaprVioDevice *sdev, uint8_t *buf, int len);
140void spapr_vty_create(SpaprVioBus *bus, Chardev *chardev);
141void spapr_vlan_create(SpaprVioBus *bus, NICInfo *nd);
142void spapr_vscsi_create(SpaprVioBus *bus);
143
144SpaprVioDevice *spapr_vty_get_default(SpaprVioBus *bus);
145
146extern const VMStateDescription vmstate_spapr_vio;
147
148#define VMSTATE_SPAPR_VIO(_f, _s) \
149 VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, SpaprVioDevice)
150
151void spapr_vio_set_bypass(SpaprVioDevice *dev, bool bypass);
152
153#endif
154