xref: /openbmc/qemu/include/hw/ppc/pnv.h (revision 31cf4b97)
1 /*
2  * QEMU PowerPC PowerNV various definitions
3  *
4  * Copyright (c) 2014-2016 BenH, IBM Corporation.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 #ifndef _PPC_PNV_H
20 #define _PPC_PNV_H
21 
22 #include "hw/boards.h"
23 #include "hw/sysbus.h"
24 #include "hw/ipmi/ipmi.h"
25 #include "hw/ppc/pnv_lpc.h"
26 #include "hw/ppc/pnv_psi.h"
27 #include "hw/ppc/pnv_occ.h"
28 
29 #define TYPE_PNV_CHIP "pnv-chip"
30 #define PNV_CHIP(obj) OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP)
31 #define PNV_CHIP_CLASS(klass) \
32      OBJECT_CLASS_CHECK(PnvChipClass, (klass), TYPE_PNV_CHIP)
33 #define PNV_CHIP_GET_CLASS(obj) \
34      OBJECT_GET_CLASS(PnvChipClass, (obj), TYPE_PNV_CHIP)
35 
36 typedef enum PnvChipType {
37     PNV_CHIP_POWER8E,     /* AKA Murano (default) */
38     PNV_CHIP_POWER8,      /* AKA Venice */
39     PNV_CHIP_POWER8NVL,   /* AKA Naples */
40     PNV_CHIP_POWER9,      /* AKA Nimbus */
41 } PnvChipType;
42 
43 typedef struct PnvChip {
44     /*< private >*/
45     SysBusDevice parent_obj;
46 
47     /*< public >*/
48     uint32_t     chip_id;
49     uint64_t     ram_start;
50     uint64_t     ram_size;
51 
52     uint32_t     nr_cores;
53     uint64_t     cores_mask;
54     void         *cores;
55 
56     hwaddr       xscom_base;
57     MemoryRegion xscom_mmio;
58     MemoryRegion xscom;
59     AddressSpace xscom_as;
60 } PnvChip;
61 
62 #define TYPE_PNV8_CHIP "pnv8-chip"
63 #define PNV8_CHIP(obj) OBJECT_CHECK(Pnv8Chip, (obj), TYPE_PNV8_CHIP)
64 
65 typedef struct Pnv8Chip {
66     /*< private >*/
67     PnvChip      parent_obj;
68 
69     /*< public >*/
70     MemoryRegion icp_mmio;
71 
72     PnvLpcController lpc;
73     PnvPsi       psi;
74     PnvOCC       occ;
75 } Pnv8Chip;
76 
77 #define TYPE_PNV9_CHIP "pnv9-chip"
78 #define PNV9_CHIP(obj) OBJECT_CHECK(Pnv9Chip, (obj), TYPE_PNV9_CHIP)
79 
80 typedef struct Pnv9Chip {
81     /*< private >*/
82     PnvChip      parent_obj;
83 
84     /*< public >*/
85 } Pnv9Chip;
86 
87 typedef struct PnvChipClass {
88     /*< private >*/
89     SysBusDeviceClass parent_class;
90 
91     /*< public >*/
92     PnvChipType  chip_type;
93     uint64_t     chip_cfam_id;
94     uint64_t     cores_mask;
95 
96     hwaddr       xscom_base;
97 
98     DeviceRealize parent_realize;
99 
100     uint32_t (*core_pir)(PnvChip *chip, uint32_t core_id);
101     void (*intc_create)(PnvChip *chip, PowerPCCPU *cpu, Error **errp);
102     ISABus *(*isa_create)(PnvChip *chip, Error **errp);
103 } PnvChipClass;
104 
105 #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP
106 #define PNV_CHIP_TYPE_NAME(cpu_model) cpu_model PNV_CHIP_TYPE_SUFFIX
107 
108 #define TYPE_PNV_CHIP_POWER8E PNV_CHIP_TYPE_NAME("power8e_v2.1")
109 #define PNV_CHIP_POWER8E(obj) \
110     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8E)
111 
112 #define TYPE_PNV_CHIP_POWER8 PNV_CHIP_TYPE_NAME("power8_v2.0")
113 #define PNV_CHIP_POWER8(obj) \
114     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8)
115 
116 #define TYPE_PNV_CHIP_POWER8NVL PNV_CHIP_TYPE_NAME("power8nvl_v1.0")
117 #define PNV_CHIP_POWER8NVL(obj) \
118     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8NVL)
119 
120 #define TYPE_PNV_CHIP_POWER9 PNV_CHIP_TYPE_NAME("power9_v2.0")
121 #define PNV_CHIP_POWER9(obj) \
122     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER9)
123 
124 /*
125  * This generates a HW chip id depending on an index, as found on a
126  * two socket system with dual chip modules :
127  *
128  *    0x0, 0x1, 0x10, 0x11
129  *
130  * 4 chips should be the maximum
131  *
132  * TODO: use a machine property to define the chip ids
133  */
134 #define PNV_CHIP_HWID(i) ((((i) & 0x3e) << 3) | ((i) & 0x1))
135 
136 /*
137  * Converts back a HW chip id to an index. This is useful to calculate
138  * the MMIO addresses of some controllers which depend on the chip id.
139  */
140 #define PNV_CHIP_INDEX(chip)                                    \
141     (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3))
142 
143 #define TYPE_PNV_MACHINE       MACHINE_TYPE_NAME("powernv")
144 #define PNV_MACHINE(obj) \
145     OBJECT_CHECK(PnvMachineState, (obj), TYPE_PNV_MACHINE)
146 
147 typedef struct PnvMachineState {
148     /*< private >*/
149     MachineState parent_obj;
150 
151     uint32_t     initrd_base;
152     long         initrd_size;
153 
154     uint32_t     num_chips;
155     PnvChip      **chips;
156 
157     ISABus       *isa_bus;
158     uint32_t     cpld_irqstate;
159 
160     IPMIBmc      *bmc;
161     Notifier     powerdown_notifier;
162 } PnvMachineState;
163 
164 static inline bool pnv_chip_is_power9(const PnvChip *chip)
165 {
166     return PNV_CHIP_GET_CLASS(chip)->chip_type == PNV_CHIP_POWER9;
167 }
168 
169 static inline bool pnv_is_power9(PnvMachineState *pnv)
170 {
171     return pnv_chip_is_power9(pnv->chips[0]);
172 }
173 
174 #define PNV_FDT_ADDR          0x01000000
175 #define PNV_TIMEBASE_FREQ     512000000ULL
176 
177 /*
178  * BMC helpers
179  */
180 void pnv_dt_bmc_sensors(IPMIBmc *bmc, void *fdt);
181 void pnv_bmc_powerdown(IPMIBmc *bmc);
182 
183 /*
184  * POWER8 MMIO base addresses
185  */
186 #define PNV_XSCOM_SIZE        0x800000000ull
187 #define PNV_XSCOM_BASE(chip)                                            \
188     (chip->xscom_base + ((uint64_t)(chip)->chip_id) * PNV_XSCOM_SIZE)
189 
190 /*
191  * XSCOM 0x20109CA defines the ICP BAR:
192  *
193  * 0:29   : bits 14 to 43 of address to define 1 MB region.
194  * 30     : 1 to enable ICP to receive loads/stores against its BAR region
195  * 31:63  : Constant 0
196  *
197  * Usually defined as :
198  *
199  *      0xffffe00200000000 -> 0x0003ffff80000000
200  *      0xffffe00600000000 -> 0x0003ffff80100000
201  *      0xffffe02200000000 -> 0x0003ffff80800000
202  *      0xffffe02600000000 -> 0x0003ffff80900000
203  */
204 #define PNV_ICP_SIZE         0x0000000000100000ull
205 #define PNV_ICP_BASE(chip)                                              \
206     (0x0003ffff80000000ull + (uint64_t) PNV_CHIP_INDEX(chip) * PNV_ICP_SIZE)
207 
208 
209 #define PNV_PSIHB_SIZE       0x0000000000100000ull
210 #define PNV_PSIHB_BASE(chip) \
211     (0x0003fffe80000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * PNV_PSIHB_SIZE)
212 
213 #define PNV_PSIHB_FSP_SIZE   0x0000000100000000ull
214 #define PNV_PSIHB_FSP_BASE(chip) \
215     (0x0003ffe000000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * \
216      PNV_PSIHB_FSP_SIZE)
217 
218 #endif /* _PPC_PNV_H */
219