@samitouri / QOSamiQemu
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1 /*
2 * QEMU PowerPC PowerNV (POWER10) PHB5 PEC model
3 *
4 * Copyright (c) 2018-2026, IBM Corporation.
5 *
6 * SPDX-License-Identifier: GPL-2.0-or-later
7 */
8
9 #include "qemu/osdep.h"
10 #include "hw/pci-host/pnv_phb4.h"
11 #include "hw/ppc/pnv_xscom.h"
12
13 #define XPEC_PCI_CPLT_OFFSET 0x1000000ULL
14
15 /*
16 * POWER10 definitions
17 */
18 static uint32_t pnv_phb5_pec_xscom_cplt_base(PnvPhb4PecState *pec)
19 {
20 return PNV10_XSCOM_PEC_NEST_CPLT_BASE + XPEC_PCI_CPLT_OFFSET * pec->index;
21 }
22
23 static uint32_t pnv_phb5_pec_xscom_pci_base(PnvPhb4PecState *pec)
24 {
25 return PNV10_XSCOM_PEC_PCI_BASE + 0x1000000 * pec->index;
26 }
27
28 static uint32_t pnv_phb5_pec_xscom_nest_base(PnvPhb4PecState *pec)
29 {
30 /* index goes down ... */
31 return PNV10_XSCOM_PEC_NEST_BASE - 0x1000000 * pec->index;
32 }
33
34 /*
35 * PEC0 -> 3 stacks
36 * PEC1 -> 3 stacks
37 */
38 static const uint32_t pnv_phb5_pec_num_stacks[] = { 3, 3 };
39
40 static void pnv_phb5_pec_class_init(ObjectClass *klass, const void *data)
41 {
42 PnvPhb4PecClass *pecc = PNV_PHB4_PEC_CLASS(klass);
43 static const char compat[] = "ibm,power10-pbcq";
44 static const char stk_compat[] = "ibm,power10-phb-stack";
45
46 pecc->xscom_cplt_base = pnv_phb5_pec_xscom_cplt_base;
47 pecc->xscom_nest_base = pnv_phb5_pec_xscom_nest_base;
48 pecc->xscom_pci_base = pnv_phb5_pec_xscom_pci_base;
49 pecc->xscom_nest_size = PNV10_XSCOM_PEC_NEST_SIZE;
50 pecc->xscom_pci_size = PNV10_XSCOM_PEC_PCI_SIZE;
51 pecc->compat = compat;
52 pecc->compat_size = sizeof(compat);
53 pecc->stk_compat = stk_compat;
54 pecc->stk_compat_size = sizeof(stk_compat);
55 pecc->version = PNV_PHB5_VERSION;
56 pecc->phb_type = TYPE_PNV_PHB5;
57 pecc->num_phbs = pnv_phb5_pec_num_stacks;
58 }
59
60 static const TypeInfo pnv_phb5_pec_type_info = {
61 .name = TYPE_PNV_PHB5_PEC,
62 .parent = TYPE_PNV_PHB4_PEC,
63 .instance_size = sizeof(PnvPhb4PecState),
64 .class_init = pnv_phb5_pec_class_init,
65 .class_size = sizeof(PnvPhb4PecClass),
66 .interfaces = (const InterfaceInfo[]) {
67 { TYPE_PNV_XSCOM_INTERFACE },
68 { }
69 }
70 };
71
72 static void pnv_phb5_pec_register_types(void)
73 {
74 type_register_static(&pnv_phb5_pec_type_info);
75 }
76
77 type_init(pnv_phb5_pec_register_types);