2 * QEMU PowerPC PowerNV (POWER9) PHB4 model
4 * Copyright (c) 2018-2020, IBM Corporation.
6 * This code is licensed under the GPL version 2 or later. See the
7 * COPYING file in the top-level directory.
10 #ifndef PCI_HOST_PNV_PHB4_H
11 #define PCI_HOST_PNV_PHB4_H
13 #include "hw/pci/pcie_host.h"
14 #include "hw/pci/pcie_port.h"
15 #include "hw/ppc/xive.h"
16 #include "qom/object.h"
18 typedef struct PnvPhb4PecState PnvPhb4PecState
;
19 typedef struct PnvPhb4PecStack PnvPhb4PecStack
;
20 typedef struct PnvPHB4 PnvPHB4
;
21 typedef struct PnvChip PnvChip
;
24 * We have one such address space wrapper per possible device under
25 * the PHB since they need to be assigned statically at qemu device
26 * creation time. The relationship to a PE is done later
27 * dynamically. This means we can potentially create a lot of these
28 * guys. Q35 stores them as some kind of radix tree but we never
29 * really need to do fast lookups so instead we simply keep a QLIST of
30 * them for now, we can add the radix if needed later on.
32 * We do cache the PE number to speed things up a bit though.
34 typedef struct PnvPhb4DMASpace
{
37 int pe_num
; /* Cached PE number */
38 #define PHB_INVALID_PE (-1)
41 IOMMUMemoryRegion dma_mr
;
42 MemoryRegion msi32_mr
;
43 MemoryRegion msi64_mr
;
44 QLIST_ENTRY(PnvPhb4DMASpace
) list
;
50 #define TYPE_PNV_PHB4_ROOT_BUS "pnv-phb4-root"
51 #define TYPE_PNV_PHB4_ROOT_PORT "pnv-phb4-root-port"
53 typedef struct PnvPHB4RootPort
{
58 * PHB4 PCIe Host Bridge for PowerNV machines (POWER9)
60 #define TYPE_PNV_PHB4 "pnv-phb4"
61 OBJECT_DECLARE_SIMPLE_TYPE(PnvPHB4
, PNV_PHB4
)
63 #define PNV_PHB4_MAX_LSIs 8
64 #define PNV_PHB4_MAX_INTs 4096
65 #define PNV_PHB4_MAX_MIST (PNV_PHB4_MAX_INTs >> 2)
66 #define PNV_PHB4_MAX_MMIO_WINDOWS 32
67 #define PNV_PHB4_MIN_MMIO_WINDOWS 16
68 #define PNV_PHB4_NUM_REGS (0x3000 >> 3)
69 #define PNV_PHB4_MAX_PEs 512
70 #define PNV_PHB4_MAX_TVEs (PNV_PHB4_MAX_PEs * 2)
71 #define PNV_PHB4_MAX_PEEVs (PNV_PHB4_MAX_PEs / 64)
72 #define PNV_PHB4_MAX_MBEs (PNV_PHB4_MAX_MMIO_WINDOWS * 2)
74 #define PNV_PHB4_VERSION 0x000000a400000002ull
75 #define PNV_PHB4_DEVICE_ID 0x04c1
77 #define PCI_MMIO_TOTAL_SIZE (0x1ull << 60)
80 PCIExpressHost parent_obj
;
92 /* Main register images */
93 uint64_t regs
[PNV_PHB4_NUM_REGS
];
96 /* Extra SCOM-only register */
97 uint64_t scom_hv_ind_addr_reg
;
100 * Geometry of the PHB. There are two types, small and big PHBs, a
101 * number of resources (number of PEs, windows etc...) are doubled
106 /* Memory regions for MMIO space */
107 MemoryRegion mr_mmio
[PNV_PHB4_MAX_MMIO_WINDOWS
];
110 MemoryRegion pci_mmio
;
113 /* PCI registers (excluding pass-through) */
114 #define PHB4_PEC_PCI_STK_REGS_COUNT 0xf
115 uint64_t pci_regs
[PHB4_PEC_PCI_STK_REGS_COUNT
];
116 MemoryRegion pci_regs_mr
;
119 #define PHB4_PEC_NEST_STK_REGS_COUNT 0x17
120 uint64_t nest_regs
[PHB4_PEC_NEST_STK_REGS_COUNT
];
121 MemoryRegion nest_regs_mr
;
123 /* PHB pass-through XSCOM */
124 MemoryRegion phb_regs_mr
;
126 /* Memory windows from PowerBus to PHB */
136 /* On-chip IODA tables */
137 uint64_t ioda_LIST
[PNV_PHB4_MAX_LSIs
];
138 uint64_t ioda_MIST
[PNV_PHB4_MAX_MIST
];
139 uint64_t ioda_TVT
[PNV_PHB4_MAX_TVEs
];
140 uint64_t ioda_MBT
[PNV_PHB4_MAX_MBEs
];
141 uint64_t ioda_MDT
[PNV_PHB4_MAX_PEs
];
142 uint64_t ioda_PEEV
[PNV_PHB4_MAX_PEEVs
];
145 * The internal PESTA/B is 2 bits per PE split into two tables, we
146 * store them in a single array here to avoid wasting space.
148 uint8_t ioda_PEST_AB
[PNV_PHB4_MAX_PEs
];
150 /* P9 Interrupt generation */
154 QLIST_HEAD(, PnvPhb4DMASpace
) dma_spaces
;
157 void pnv_phb4_pic_print_info(PnvPHB4
*phb
, Monitor
*mon
);
158 int pnv_phb4_pec_get_phb_id(PnvPhb4PecState
*pec
, int stack_index
);
159 extern const MemoryRegionOps pnv_phb4_xscom_ops
;
162 * PHB4 PEC (PCI Express Controller)
164 #define TYPE_PNV_PHB4_PEC "pnv-phb4-pec"
165 OBJECT_DECLARE_TYPE(PnvPhb4PecState
, PnvPhb4PecClass
, PNV_PHB4_PEC
)
167 struct PnvPhb4PecState
{
170 /* PEC number in chip */
174 MemoryRegion
*system_memory
;
176 /* Nest registers, excuding per-stack */
177 #define PHB4_PEC_NEST_REGS_COUNT 0xf
178 uint64_t nest_regs
[PHB4_PEC_NEST_REGS_COUNT
];
179 MemoryRegion nest_regs_mr
;
181 /* PCI registers, excluding per-stack */
182 #define PHB4_PEC_PCI_REGS_COUNT 0x2
183 uint64_t pci_regs
[PHB4_PEC_PCI_REGS_COUNT
];
184 MemoryRegion pci_regs_mr
;
193 struct PnvPhb4PecClass
{
194 DeviceClass parent_class
;
196 uint32_t (*xscom_nest_base
)(PnvPhb4PecState
*pec
);
197 uint32_t xscom_nest_size
;
198 uint32_t (*xscom_pci_base
)(PnvPhb4PecState
*pec
);
199 uint32_t xscom_pci_size
;
202 const char *stk_compat
;
205 const uint32_t *num_phbs
;
206 const char *rp_model
;
209 #endif /* PCI_HOST_PNV_PHB4_H */