xref: /openbmc/qemu/include/hw/ppc/pnv.h (revision 04026890)
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     MemoryRegion icp_mmio;
61 
62     PnvLpcController lpc;
63     PnvPsi       psi;
64     PnvOCC       occ;
65 } PnvChip;
66 
67 typedef struct PnvChipClass {
68     /*< private >*/
69     SysBusDeviceClass parent_class;
70 
71     /*< public >*/
72     PnvChipType  chip_type;
73     uint64_t     chip_cfam_id;
74     uint64_t     cores_mask;
75 
76     hwaddr       xscom_base;
77 
78     uint32_t (*core_pir)(PnvChip *chip, uint32_t core_id);
79     Object *(*intc_create)(PnvChip *chip, Object *child, Error **errp);
80     ISABus *(*isa_create)(PnvChip *chip, Error **errp);
81 } PnvChipClass;
82 
83 #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP
84 #define PNV_CHIP_TYPE_NAME(cpu_model) cpu_model PNV_CHIP_TYPE_SUFFIX
85 
86 #define TYPE_PNV_CHIP_POWER8E PNV_CHIP_TYPE_NAME("power8e_v2.1")
87 #define PNV_CHIP_POWER8E(obj) \
88     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8E)
89 
90 #define TYPE_PNV_CHIP_POWER8 PNV_CHIP_TYPE_NAME("power8_v2.0")
91 #define PNV_CHIP_POWER8(obj) \
92     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8)
93 
94 #define TYPE_PNV_CHIP_POWER8NVL PNV_CHIP_TYPE_NAME("power8nvl_v1.0")
95 #define PNV_CHIP_POWER8NVL(obj) \
96     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8NVL)
97 
98 #define TYPE_PNV_CHIP_POWER9 PNV_CHIP_TYPE_NAME("power9_v2.0")
99 #define PNV_CHIP_POWER9(obj) \
100     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER9)
101 
102 /*
103  * This generates a HW chip id depending on an index, as found on a
104  * two socket system with dual chip modules :
105  *
106  *    0x0, 0x1, 0x10, 0x11
107  *
108  * 4 chips should be the maximum
109  *
110  * TODO: use a machine property to define the chip ids
111  */
112 #define PNV_CHIP_HWID(i) ((((i) & 0x3e) << 3) | ((i) & 0x1))
113 
114 /*
115  * Converts back a HW chip id to an index. This is useful to calculate
116  * the MMIO addresses of some controllers which depend on the chip id.
117  */
118 #define PNV_CHIP_INDEX(chip)                                    \
119     (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3))
120 
121 #define TYPE_PNV_MACHINE       MACHINE_TYPE_NAME("powernv")
122 #define PNV_MACHINE(obj) \
123     OBJECT_CHECK(PnvMachineState, (obj), TYPE_PNV_MACHINE)
124 
125 typedef struct PnvMachineState {
126     /*< private >*/
127     MachineState parent_obj;
128 
129     uint32_t     initrd_base;
130     long         initrd_size;
131 
132     uint32_t     num_chips;
133     PnvChip      **chips;
134 
135     ISABus       *isa_bus;
136     uint32_t     cpld_irqstate;
137 
138     IPMIBmc      *bmc;
139     Notifier     powerdown_notifier;
140 } PnvMachineState;
141 
142 static inline bool pnv_chip_is_power9(const PnvChip *chip)
143 {
144     return PNV_CHIP_GET_CLASS(chip)->chip_type == PNV_CHIP_POWER9;
145 }
146 
147 static inline bool pnv_is_power9(PnvMachineState *pnv)
148 {
149     return pnv_chip_is_power9(pnv->chips[0]);
150 }
151 
152 #define PNV_FDT_ADDR          0x01000000
153 #define PNV_TIMEBASE_FREQ     512000000ULL
154 
155 /*
156  * BMC helpers
157  */
158 void pnv_dt_bmc_sensors(IPMIBmc *bmc, void *fdt);
159 void pnv_bmc_powerdown(IPMIBmc *bmc);
160 
161 /*
162  * POWER8 MMIO base addresses
163  */
164 #define PNV_XSCOM_SIZE        0x800000000ull
165 #define PNV_XSCOM_BASE(chip)                                            \
166     (chip->xscom_base + ((uint64_t)(chip)->chip_id) * PNV_XSCOM_SIZE)
167 
168 /*
169  * XSCOM 0x20109CA defines the ICP BAR:
170  *
171  * 0:29   : bits 14 to 43 of address to define 1 MB region.
172  * 30     : 1 to enable ICP to receive loads/stores against its BAR region
173  * 31:63  : Constant 0
174  *
175  * Usually defined as :
176  *
177  *      0xffffe00200000000 -> 0x0003ffff80000000
178  *      0xffffe00600000000 -> 0x0003ffff80100000
179  *      0xffffe02200000000 -> 0x0003ffff80800000
180  *      0xffffe02600000000 -> 0x0003ffff80900000
181  */
182 #define PNV_ICP_SIZE         0x0000000000100000ull
183 #define PNV_ICP_BASE(chip)                                              \
184     (0x0003ffff80000000ull + (uint64_t) PNV_CHIP_INDEX(chip) * PNV_ICP_SIZE)
185 
186 
187 #define PNV_PSIHB_SIZE       0x0000000000100000ull
188 #define PNV_PSIHB_BASE(chip) \
189     (0x0003fffe80000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * PNV_PSIHB_SIZE)
190 
191 #define PNV_PSIHB_FSP_SIZE   0x0000000100000000ull
192 #define PNV_PSIHB_FSP_BASE(chip) \
193     (0x0003ffe000000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * \
194      PNV_PSIHB_FSP_SIZE)
195 
196 #endif /* _PPC_PNV_H */
197