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/pci_bus.h"
14 #include "hw/ppc/xive.h"
15 #include "qom/object.h"
17 typedef struct PnvPhb4PecState PnvPhb4PecState;
18 typedef struct PnvPhb4PecStack PnvPhb4PecStack;
19 typedef struct PnvPHB4 PnvPHB4;
20 typedef struct PnvPHB PnvPHB;
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 struct PnvPHB4RootBus {
57 OBJECT_DECLARE_SIMPLE_TYPE(PnvPHB4RootBus, PNV_PHB4_ROOT_BUS)
60 * PHB4 PCIe Host Bridge for PowerNV machines (POWER9)
62 #define TYPE_PNV_PHB4 "pnv-phb4"
63 OBJECT_DECLARE_SIMPLE_TYPE(PnvPHB4, PNV_PHB4)
65 #define PNV_PHB4_MAX_LSIs 8
66 #define PNV_PHB4_MAX_INTs 4096
67 #define PNV_PHB4_MAX_MIST (PNV_PHB4_MAX_INTs >> 2)
68 #define PNV_PHB4_MAX_MMIO_WINDOWS 32
69 #define PNV_PHB4_MIN_MMIO_WINDOWS 16
70 #define PNV_PHB4_NUM_REGS (0x3000 >> 3)
71 #define PNV_PHB4_MAX_PEs 512
72 #define PNV_PHB4_MAX_TVEs (PNV_PHB4_MAX_PEs * 2)
73 #define PNV_PHB4_MAX_PEEVs (PNV_PHB4_MAX_PEs / 64)
74 #define PNV_PHB4_MAX_MBEs (PNV_PHB4_MAX_MMIO_WINDOWS * 2)
76 #define PNV_PHB4_VERSION 0x000000a400000002ull
77 #define PNV_PHB4_DEVICE_ID 0x04c1
79 #define PCI_MMIO_TOTAL_SIZE (0x1ull << 60)
94 /* Main register images */
95 uint64_t regs[PNV_PHB4_NUM_REGS];
98 /* Extra SCOM-only register */
99 uint64_t scom_hv_ind_addr_reg;
102 * Geometry of the PHB. There are two types, small and big PHBs, a
103 * number of resources (number of PEs, windows etc...) are doubled
108 /* Memory regions for MMIO space */
109 MemoryRegion mr_mmio[PNV_PHB4_MAX_MMIO_WINDOWS];
112 MemoryRegion pci_mmio;
115 /* PCI registers (excluding pass-through) */
116 #define PHB4_PEC_PCI_STK_REGS_COUNT 0xf
117 uint64_t pci_regs[PHB4_PEC_PCI_STK_REGS_COUNT];
118 MemoryRegion pci_regs_mr;
121 #define PHB4_PEC_NEST_STK_REGS_COUNT 0x17
122 uint64_t nest_regs[PHB4_PEC_NEST_STK_REGS_COUNT];
123 MemoryRegion nest_regs_mr;
125 /* PHB pass-through XSCOM */
126 MemoryRegion phb_regs_mr;
128 /* Memory windows from PowerBus to PHB */
138 /* On-chip IODA tables */
139 uint64_t ioda_LIST[PNV_PHB4_MAX_LSIs];
140 uint64_t ioda_MIST[PNV_PHB4_MAX_MIST];
141 uint64_t ioda_TVT[PNV_PHB4_MAX_TVEs];
142 uint64_t ioda_MBT[PNV_PHB4_MAX_MBEs];
143 uint64_t ioda_MDT[PNV_PHB4_MAX_PEs];
144 uint64_t ioda_PEEV[PNV_PHB4_MAX_PEEVs];
147 * The internal PESTA/B is 2 bits per PE split into two tables, we
148 * store them in a single array here to avoid wasting space.
150 uint8_t ioda_PEST_AB[PNV_PHB4_MAX_PEs];
152 /* P9 Interrupt generation */
156 QLIST_HEAD(, PnvPhb4DMASpace) dma_spaces;
159 void pnv_phb4_pic_print_info(PnvPHB4 *phb, Monitor *mon);
160 int pnv_phb4_pec_get_phb_id(PnvPhb4PecState *pec, int stack_index);
161 void pnv_phb4_bus_init(DeviceState *dev, PnvPHB4 *phb);
162 extern const MemoryRegionOps pnv_phb4_xscom_ops;
165 * PHB4 PEC (PCI Express Controller)
167 #define TYPE_PNV_PHB4_PEC "pnv-phb4-pec"
168 OBJECT_DECLARE_TYPE(PnvPhb4PecState, PnvPhb4PecClass, PNV_PHB4_PEC)
170 struct PnvPhb4PecState {
173 /* PEC number in chip */
177 MemoryRegion *system_memory;
179 /* Nest registers, excuding per-stack */
180 #define PHB4_PEC_NEST_REGS_COUNT 0xf
181 uint64_t nest_regs[PHB4_PEC_NEST_REGS_COUNT];
182 MemoryRegion nest_regs_mr;
184 /* PCI registers, excluding per-stack */
185 #define PHB4_PEC_PCI_REGS_COUNT 0x3
186 uint64_t pci_regs[PHB4_PEC_PCI_REGS_COUNT];
187 MemoryRegion pci_regs_mr;
196 struct PnvPhb4PecClass {
197 DeviceClass parent_class;
199 uint32_t (*xscom_nest_base)(PnvPhb4PecState *pec);
200 uint32_t xscom_nest_size;
201 uint32_t (*xscom_pci_base)(PnvPhb4PecState *pec);
202 uint32_t xscom_pci_size;
205 const char *stk_compat;
208 const char *phb_type;
209 const uint32_t *num_phbs;
213 * POWER10 definitions
216 #define TYPE_PNV_PHB5 "pnv-phb5"
217 #define PNV_PHB5(obj) \
218 OBJECT_CHECK(PnvPhb4, (obj), TYPE_PNV_PHB5)
220 #define PNV_PHB5_VERSION 0x000000a500000001ull
221 #define PNV_PHB5_DEVICE_ID 0x0652
223 #define TYPE_PNV_PHB5_PEC "pnv-phb5-pec"
224 #define PNV_PHB5_PEC(obj) \
225 OBJECT_CHECK(PnvPhb4PecState, (obj), TYPE_PNV_PHB5_PEC)
227 #endif /* PCI_HOST_PNV_PHB4_H */