xref: /openbmc/qemu/include/hw/ppc/pnv_psi.h (revision 2e1cacfb)
1 /*
2  * QEMU PowerPC PowerNV Processor Service Interface (PSI) model
3  *
4  * Copyright (c) 2015-2022, 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 2.1 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 
20 #ifndef PPC_PNV_PSI_H
21 #define PPC_PNV_PSI_H
22 
23 #include "hw/sysbus.h"
24 #include "hw/ppc/xics.h"
25 #include "hw/ppc/xive.h"
26 #include "hw/qdev-core.h"
27 
28 #define TYPE_PNV_PSI "pnv-psi"
29 OBJECT_DECLARE_TYPE(PnvPsi, PnvPsiClass,
30                     PNV_PSI)
31 
32 #define PSIHB_XSCOM_MAX         0x20
33 
34 struct PnvPsi {
35     DeviceState parent;
36 
37     MemoryRegion regs_mr;
38     uint64_t bar;
39 
40     /* FSP region not supported */
41     /* MemoryRegion fsp_mr; */
42     uint64_t fsp_bar;
43 
44     /* Interrupt generation */
45     qemu_irq *qirqs;
46 
47     /* Registers */
48     uint64_t regs[PSIHB_XSCOM_MAX];
49 
50     MemoryRegion xscom_regs;
51 };
52 
53 #define TYPE_PNV8_PSI TYPE_PNV_PSI "-POWER8"
54 OBJECT_DECLARE_SIMPLE_TYPE(Pnv8Psi, PNV8_PSI)
55 
56 struct Pnv8Psi {
57     PnvPsi   parent;
58 
59     ICSState ics;
60 };
61 
62 #define TYPE_PNV9_PSI TYPE_PNV_PSI "-POWER9"
63 OBJECT_DECLARE_SIMPLE_TYPE(Pnv9Psi, PNV9_PSI)
64 
65 struct Pnv9Psi {
66     PnvPsi   parent;
67 
68     XiveSource source;
69 };
70 
71 #define TYPE_PNV10_PSI TYPE_PNV_PSI "-POWER10"
72 
73 
74 struct PnvPsiClass {
75     SysBusDeviceClass parent_class;
76 
77     uint32_t xscom_pcba;
78     uint32_t xscom_size;
79     uint64_t bar_mask;
80     const char *compat;
81     int compat_size;
82 };
83 
84 /* The PSI and FSP interrupts are muxed on the same IRQ number */
85 typedef enum PnvPsiIrq {
86     PSIHB_IRQ_FSP, /* internal use only */
87     PSIHB_IRQ_OCC,
88     PSIHB_IRQ_FSI,
89     PSIHB_IRQ_LPC_I2C,
90     PSIHB_IRQ_LOCAL_ERR,
91     PSIHB_IRQ_EXTERNAL,
92 } PnvPsiIrq;
93 
94 #define PSI_NUM_INTERRUPTS 6
95 
96 /* P9 PSI Interrupts */
97 #define PSIHB9_IRQ_PSI          0
98 #define PSIHB9_IRQ_OCC          1
99 #define PSIHB9_IRQ_FSI          2
100 #define PSIHB9_IRQ_LPCHC        3
101 #define PSIHB9_IRQ_LOCAL_ERR    4
102 #define PSIHB9_IRQ_GLOBAL_ERR   5
103 #define PSIHB9_IRQ_TPM          6
104 #define PSIHB9_IRQ_LPC_SIRQ0    7
105 #define PSIHB9_IRQ_LPC_SIRQ1    8
106 #define PSIHB9_IRQ_LPC_SIRQ2    9
107 #define PSIHB9_IRQ_LPC_SIRQ3    10
108 #define PSIHB9_IRQ_SBE_I2C      11
109 #define PSIHB9_IRQ_DIO          12
110 #define PSIHB9_IRQ_PSU          13
111 #define PSIHB9_NUM_IRQS         14
112 
113 void pnv_psi_pic_print_info(Pnv9Psi *psi, GString *buf);
114 
115 #endif /* PPC_PNV_PSI_H */
116