1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright 2006 IBM Corporation.
4 */
5
6#ifndef _PSERIES_PSERIES_H
7#define _PSERIES_PSERIES_H
8
9#include <linux/interrupt.h>
10#include <asm/rtas.h>
11
12struct device_node;
13
14void __init request_event_sources_irqs(struct device_node *np,
15				       irq_handler_t handler, const char *name);
16
17#include <linux/of.h>
18
19struct pt_regs;
20
21extern int pSeries_system_reset_exception(struct pt_regs *regs);
22extern int pSeries_machine_check_exception(struct pt_regs *regs);
23extern long pseries_machine_check_realmode(struct pt_regs *regs);
24void pSeries_machine_check_log_err(void);
25
26#ifdef CONFIG_SMP
27extern void smp_init_pseries(void);
28
29/* Get state of physical CPU from query_cpu_stopped */
30int smp_query_cpu_stopped(unsigned int pcpu);
31#define QCSS_STOPPED 0
32#define QCSS_STOPPING 1
33#define QCSS_NOT_STOPPED 2
34#define QCSS_HARDWARE_ERROR -1
35#define QCSS_HARDWARE_BUSY -2
36#else
37static inline void smp_init_pseries(void) { }
38#endif
39
40extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary);
41void pseries_machine_kexec(struct kimage *image);
42
43extern void pSeries_final_fixup(void);
44
45/* Poweron flag used for enabling auto ups restart */
46extern unsigned long rtas_poweron_auto;
47
48/* Dynamic logical Partitioning/Mobility */
49extern void dlpar_free_cc_nodes(struct device_node *);
50extern void dlpar_free_cc_property(struct property *);
51extern struct device_node *dlpar_configure_connector(__be32,
52						struct device_node *);
53extern int dlpar_attach_node(struct device_node *, struct device_node *);
54extern int dlpar_detach_node(struct device_node *);
55extern int dlpar_acquire_drc(u32 drc_index);
56extern int dlpar_release_drc(u32 drc_index);
57extern int dlpar_unisolate_drc(u32 drc_index);
58extern void post_mobility_fixup(void);
59
60void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog);
61int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog);
62
63#ifdef CONFIG_MEMORY_HOTPLUG
64int dlpar_memory(struct pseries_hp_errorlog *hp_elog);
65int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog);
66#else
67static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
68{
69	return -EOPNOTSUPP;
70}
71static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog)
72{
73	return -EOPNOTSUPP;
74}
75#endif
76
77#ifdef CONFIG_HOTPLUG_CPU
78int dlpar_cpu(struct pseries_hp_errorlog *hp_elog);
79void pseries_cpu_hotplug_init(void);
80#else
81static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog)
82{
83	return -EOPNOTSUPP;
84}
85static inline void pseries_cpu_hotplug_init(void) { }
86#endif
87
88/* PCI root bridge prepare function override for pseries */
89struct pci_host_bridge;
90int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
91
92extern struct pci_controller_ops pseries_pci_controller_ops;
93int pseries_msi_allocate_domains(struct pci_controller *phb);
94void pseries_msi_free_domains(struct pci_controller *phb);
95
96extern int CMO_PrPSP;
97extern int CMO_SecPSP;
98extern unsigned long CMO_PageSize;
99
100static inline int cmo_get_primary_psp(void)
101{
102	return CMO_PrPSP;
103}
104
105static inline int cmo_get_secondary_psp(void)
106{
107	return CMO_SecPSP;
108}
109
110static inline unsigned long cmo_get_page_size(void)
111{
112	return CMO_PageSize;
113}
114
115int dlpar_workqueue_init(void);
116
117extern u32 pseries_security_flavor;
118void pseries_setup_security_mitigations(void);
119
120#ifdef CONFIG_PPC_64S_HASH_MMU
121void pseries_lpar_read_hblkrm_characteristics(void);
122#else
123static inline void pseries_lpar_read_hblkrm_characteristics(void) { }
124#endif
125
126void pseries_rng_init(void);
127#ifdef CONFIG_SPAPR_TCE_IOMMU
128struct iommu_group *pSeries_pci_device_group(struct pci_controller *hose,
129					     struct pci_dev *pdev);
130#endif
131
132#endif /* _PSERIES_PSERIES_H */
133