1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/*
* QEMU PowerPC PowerNV (POWER8) PHB3 model
*
* Copyright (c) 2014-2020, IBM Corporation.
*
* This code is licensed under the GPL version 2 or later. See the
* COPYING file in the top-level directory.
*/
#ifndef PCI_HOST_PNV_PHB3_H
#define PCI_HOST_PNV_PHB3_H
#include "hw/ppc/xics.h"
#include "qom/object.h"
#include "hw/pci-host/pnv_phb.h"
typedef struct PnvPHB3 PnvPHB3;
/*
* PHB3 XICS Source for MSIs
*/
#define TYPE_PHB3_MSI "phb3-msi"
typedef struct Phb3MsiState Phb3MsiState;
DECLARE_INSTANCE_CHECKER(Phb3MsiState, PHB3_MSI,
TYPE_PHB3_MSI)
#define PHB3_MAX_MSI 2048
struct Phb3MsiState {
ICSState ics;
qemu_irq *qirqs;
PnvPHB3 *phb;
uint64_t rba[PHB3_MAX_MSI / 64];
uint32_t rba_sum;
};
void pnv_phb3_msi_update_config(Phb3MsiState *msis, uint32_t base,
uint32_t count);
void pnv_phb3_msi_send(Phb3MsiState *msis, uint64_t addr, uint16_t data,
int32_t dev_pe);
void pnv_phb3_msi_ffi(Phb3MsiState *msis, uint64_t val);
void pnv_phb3_msi_pic_print_info(Phb3MsiState *msis, GString *buf);
/*
* We have one such address space wrapper per possible device under
* the PHB since they need to be assigned statically at qemu device
* creation time. The relationship to a PE is done later dynamically.
* This means we can potentially create a lot of these guys. Q35
* stores them as some kind of radix tree but we never really need to
* do fast lookups so instead we simply keep a QLIST of them for now,
* we can add the radix if needed later on.
*
* We do cache the PE number to speed things up a bit though.
*/
typedef struct PnvPhb3DMASpace {
PCIBus *bus;
uint8_t devfn;
int pe_num; /* Cached PE number */
#define PHB_INVALID_PE (-1)
PnvPHB3 *phb;
AddressSpace dma_as;
IOMMUMemoryRegion dma_mr;
MemoryRegion msi32_mr;
MemoryRegion msi64_mr;
QLIST_ENTRY(PnvPhb3DMASpace) list;
} PnvPhb3DMASpace;
/*
* PHB3 Power Bus Common Queue
*/
#define TYPE_PNV_PBCQ "pnv-pbcq"
OBJECT_DECLARE_SIMPLE_TYPE(PnvPBCQState, PNV_PBCQ)
struct PnvPBCQState {
DeviceState parent;
uint32_t nest_xbase;
uint32_t spci_xbase;
uint32_t pci_xbase;
#define PBCQ_NEST_REGS_COUNT 0x46
#define PBCQ_PCI_REGS_COUNT 0x15
#define PBCQ_SPCI_REGS_COUNT 0x5
uint64_t nest_regs[PBCQ_NEST_REGS_COUNT];
uint64_t spci_regs[PBCQ_SPCI_REGS_COUNT];
uint64_t pci_regs[PBCQ_PCI_REGS_COUNT];
MemoryRegion mmbar0;
MemoryRegion mmbar1;
MemoryRegion phbbar;
uint64_t mmio0_base;
uint64_t mmio0_size;
uint64_t mmio1_base;
uint64_t mmio1_size;
PnvPHB3 *phb;
MemoryRegion xscom_nest_regs;
MemoryRegion xscom_pci_regs;
MemoryRegion xscom_spci_regs;
};
/*
* PHB3 PCIe Root Bus
*/
#define TYPE_PNV_PHB3_ROOT_BUS "pnv-phb3-root"
struct PnvPHB3RootBus {
PCIBus parent;
uint32_t chip_id;
uint32_t phb_id;
};
OBJECT_DECLARE_SIMPLE_TYPE(PnvPHB3RootBus, PNV_PHB3_ROOT_BUS)
/*
* PHB3 PCIe Host Bridge for PowerNV machines (POWER8)
*/
#define TYPE_PNV_PHB3 "pnv-phb3"
OBJECT_DECLARE_SIMPLE_TYPE(PnvPHB3, PNV_PHB3)
#define PNV_PHB3_NUM_M64 16
#define PNV_PHB3_NUM_REGS (0x1000 >> 3)
#define PNV_PHB3_NUM_LSI 8
#define PNV_PHB3_NUM_PE 256
#define PCI_MMIO_TOTAL_SIZE (0x1ull << 60)
struct PnvPHB3 {
DeviceState parent;
PnvPHB *phb_base;
uint32_t chip_id;
uint32_t phb_id;
char bus_path[8];
uint64_t regs[PNV_PHB3_NUM_REGS];
MemoryRegion mr_regs;
MemoryRegion mr_m32;
MemoryRegion mr_m64[PNV_PHB3_NUM_M64];
MemoryRegion pci_mmio;
MemoryRegion pci_io;
uint64_t ioda_LIST[8];
uint64_t ioda_LXIVT[8];
uint64_t ioda_TVT[512];
uint64_t ioda_M64BT[16];
uint64_t ioda_MDT[256];
uint64_t ioda_PEEV[4];
uint32_t total_irq;
ICSState lsis;
qemu_irq *qirqs;
Phb3MsiState msis;
PnvPBCQState pbcq;
QLIST_HEAD(, PnvPhb3DMASpace) dma_spaces;
PnvChip *chip;
};
uint64_t pnv_phb3_reg_read(void *opaque, hwaddr off, unsigned size);
void pnv_phb3_reg_write(void *opaque, hwaddr off, uint64_t val, unsigned size);
void pnv_phb3_update_regions(PnvPHB3 *phb);
void pnv_phb3_remap_irqs(PnvPHB3 *phb);
void pnv_phb3_bus_init(DeviceState *dev, PnvPHB3 *phb);
#endif /* PCI_HOST_PNV_PHB3_H */
|
