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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/*
* QEMU PowerPC PowerNV (POWER9) PHB4 model
*
* Copyright (c) 2018-2020, 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_PHB4_H
#define PCI_HOST_PNV_PHB4_H
#include "hw/pci/pcie_host.h"
#include "hw/pci/pcie_port.h"
#include "hw/ppc/xive.h"
typedef struct PnvPhb4PecState PnvPhb4PecState;
typedef struct PnvPhb4PecStack PnvPhb4PecStack;
typedef struct PnvPHB4 PnvPHB4;
typedef struct PnvChip PnvChip;
/*
* 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 PnvPhb4DMASpace {
PCIBus *bus;
uint8_t devfn;
int pe_num; /* Cached PE number */
#define PHB_INVALID_PE (-1)
PnvPHB4 *phb;
AddressSpace dma_as;
IOMMUMemoryRegion dma_mr;
MemoryRegion msi32_mr;
MemoryRegion msi64_mr;
QLIST_ENTRY(PnvPhb4DMASpace) list;
} PnvPhb4DMASpace;
/*
* PHB4 PCIe Root port
*/
#define TYPE_PNV_PHB4_ROOT_BUS "pnv-phb4-root-bus"
#define TYPE_PNV_PHB4_ROOT_PORT "pnv-phb4-root-port"
typedef struct PnvPHB4RootPort {
PCIESlot parent_obj;
} PnvPHB4RootPort;
/*
* PHB4 PCIe Host Bridge for PowerNV machines (POWER9)
*/
#define TYPE_PNV_PHB4 "pnv-phb4"
#define PNV_PHB4(obj) OBJECT_CHECK(PnvPHB4, (obj), TYPE_PNV_PHB4)
#define PNV_PHB4_MAX_LSIs 8
#define PNV_PHB4_MAX_INTs 4096
#define PNV_PHB4_MAX_MIST (PNV_PHB4_MAX_INTs >> 2)
#define PNV_PHB4_MAX_MMIO_WINDOWS 32
#define PNV_PHB4_MIN_MMIO_WINDOWS 16
#define PNV_PHB4_NUM_REGS (0x3000 >> 3)
#define PNV_PHB4_MAX_PEs 512
#define PNV_PHB4_MAX_TVEs (PNV_PHB4_MAX_PEs * 2)
#define PNV_PHB4_MAX_PEEVs (PNV_PHB4_MAX_PEs / 64)
#define PNV_PHB4_MAX_MBEs (PNV_PHB4_MAX_MMIO_WINDOWS * 2)
#define PNV_PHB4_VERSION 0x000000a400000002ull
#define PNV_PHB4_DEVICE_ID 0x04c1
#define PCI_MMIO_TOTAL_SIZE (0x1ull << 60)
struct PnvPHB4 {
PCIExpressHost parent_obj;
PnvPHB4RootPort root;
uint32_t chip_id;
uint32_t phb_id;
uint64_t version;
uint16_t device_id;
char bus_path[8];
/* Main register images */
uint64_t regs[PNV_PHB4_NUM_REGS];
MemoryRegion mr_regs;
/* Extra SCOM-only register */
uint64_t scom_hv_ind_addr_reg;
/*
* Geometry of the PHB. There are two types, small and big PHBs, a
* number of resources (number of PEs, windows etc...) are doubled
* for a big PHB
*/
bool big_phb;
/* Memory regions for MMIO space */
MemoryRegion mr_mmio[PNV_PHB4_MAX_MMIO_WINDOWS];
/* PCI side space */
MemoryRegion pci_mmio;
MemoryRegion pci_io;
/* On-chip IODA tables */
uint64_t ioda_LIST[PNV_PHB4_MAX_LSIs];
uint64_t ioda_MIST[PNV_PHB4_MAX_MIST];
uint64_t ioda_TVT[PNV_PHB4_MAX_TVEs];
uint64_t ioda_MBT[PNV_PHB4_MAX_MBEs];
uint64_t ioda_MDT[PNV_PHB4_MAX_PEs];
uint64_t ioda_PEEV[PNV_PHB4_MAX_PEEVs];
/*
* The internal PESTA/B is 2 bits per PE split into two tables, we
* store them in a single array here to avoid wasting space.
*/
uint8_t ioda_PEST_AB[PNV_PHB4_MAX_PEs];
/* P9 Interrupt generation */
XiveSource xsrc;
qemu_irq *qirqs;
PnvPhb4PecStack *stack;
QLIST_HEAD(, PnvPhb4DMASpace) dma_spaces;
};
void pnv_phb4_pic_print_info(PnvPHB4 *phb, Monitor *mon);
void pnv_phb4_update_regions(PnvPhb4PecStack *stack);
extern const MemoryRegionOps pnv_phb4_xscom_ops;
/*
* PHB4 PEC (PCI Express Controller)
*/
#define TYPE_PNV_PHB4_PEC "pnv-phb4-pec"
#define PNV_PHB4_PEC(obj) \
OBJECT_CHECK(PnvPhb4PecState, (obj), TYPE_PNV_PHB4_PEC)
#define TYPE_PNV_PHB4_PEC_STACK "pnv-phb4-pec-stack"
#define PNV_PHB4_PEC_STACK(obj) \
OBJECT_CHECK(PnvPhb4PecStack, (obj), TYPE_PNV_PHB4_PEC_STACK)
/* Per-stack data */
struct PnvPhb4PecStack {
DeviceState parent;
/* My own stack number */
uint32_t stack_no;
/* Nest registers */
#define PHB4_PEC_NEST_STK_REGS_COUNT 0x17
uint64_t nest_regs[PHB4_PEC_NEST_STK_REGS_COUNT];
MemoryRegion nest_regs_mr;
/* PCI registers (excluding pass-through) */
#define PHB4_PEC_PCI_STK_REGS_COUNT 0xf
uint64_t pci_regs[PHB4_PEC_PCI_STK_REGS_COUNT];
MemoryRegion pci_regs_mr;
/* PHB pass-through XSCOM */
MemoryRegion phb_regs_mr;
/* Memory windows from PowerBus to PHB */
MemoryRegion mmbar0;
MemoryRegion mmbar1;
MemoryRegion phbbar;
MemoryRegion intbar;
uint64_t mmio0_base;
uint64_t mmio0_size;
uint64_t mmio1_base;
uint64_t mmio1_size;
/* The owner PEC */
PnvPhb4PecState *pec;
/* The actual PHB */
PnvPHB4 phb;
};
struct PnvPhb4PecState {
DeviceState parent;
/* PEC number in chip */
uint32_t index;
uint32_t chip_id;
MemoryRegion *system_memory;
/* Nest registers, excuding per-stack */
#define PHB4_PEC_NEST_REGS_COUNT 0xf
uint64_t nest_regs[PHB4_PEC_NEST_REGS_COUNT];
MemoryRegion nest_regs_mr;
/* PCI registers, excluding per-stack */
#define PHB4_PEC_PCI_REGS_COUNT 0x2
uint64_t pci_regs[PHB4_PEC_PCI_REGS_COUNT];
MemoryRegion pci_regs_mr;
/* Stacks */
#define PHB4_PEC_MAX_STACKS 3
uint32_t num_stacks;
PnvPhb4PecStack stacks[PHB4_PEC_MAX_STACKS];
};
#define PNV_PHB4_PEC_CLASS(klass) \
OBJECT_CLASS_CHECK(PnvPhb4PecClass, (klass), TYPE_PNV_PHB4_PEC)
#define PNV_PHB4_PEC_GET_CLASS(obj) \
OBJECT_GET_CLASS(PnvPhb4PecClass, (obj), TYPE_PNV_PHB4_PEC)
typedef struct PnvPhb4PecClass {
DeviceClass parent_class;
uint32_t (*xscom_nest_base)(PnvPhb4PecState *pec);
uint32_t xscom_nest_size;
uint32_t (*xscom_pci_base)(PnvPhb4PecState *pec);
uint32_t xscom_pci_size;
const char *compat;
int compat_size;
const char *stk_compat;
int stk_compat_size;
} PnvPhb4PecClass;
#endif /* PCI_HOST_PNV_PHB4_H */
|
