pseries.h

  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);
 41
 42extern void pSeries_final_fixup(void);
 43
 44/* Poweron flag used for enabling auto ups restart */
 45extern unsigned long rtas_poweron_auto;
 46
 47/* Dynamic logical Partitioning/Mobility */
 48extern void dlpar_free_cc_nodes(struct device_node *);
 49extern void dlpar_free_cc_property(struct property *);
 50extern struct device_node *dlpar_configure_connector(__be32,
 51						struct device_node *);
 52extern int dlpar_attach_node(struct device_node *, struct device_node *);
 53extern int dlpar_detach_node(struct device_node *);
 54extern int dlpar_acquire_drc(u32 drc_index);
 55extern int dlpar_release_drc(u32 drc_index);
 56extern int dlpar_unisolate_drc(u32 drc_index);
 57extern void post_mobility_fixup(void);
 58
 59void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog);
 60int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog);
 61
 62#ifdef CONFIG_MEMORY_HOTPLUG
 63int dlpar_memory(struct pseries_hp_errorlog *hp_elog);
 64int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog);
 65#else
 66static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
 67{
 68	return -EOPNOTSUPP;
 69}
 70static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog)
 71{
 72	return -EOPNOTSUPP;
 73}
 74#endif
 75
 76#ifdef CONFIG_HOTPLUG_CPU
 77int dlpar_cpu(struct pseries_hp_errorlog *hp_elog);
 78void pseries_cpu_hotplug_init(void);
 79#else
 80static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog)
 81{
 82	return -EOPNOTSUPP;
 83}
 84static inline void pseries_cpu_hotplug_init(void) { }
 85#endif
 86
 87/* PCI root bridge prepare function override for pseries */
 88struct pci_host_bridge;
 89int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
 90
 91extern struct pci_controller_ops pseries_pci_controller_ops;
 92int pseries_msi_allocate_domains(struct pci_controller *phb);
 93void pseries_msi_free_domains(struct pci_controller *phb);
 94
 95extern int CMO_PrPSP;
 96extern int CMO_SecPSP;
 97extern unsigned long CMO_PageSize;
 98
 99static inline int cmo_get_primary_psp(void)
100{
101	return CMO_PrPSP;
102}
103
104static inline int cmo_get_secondary_psp(void)
105{
106	return CMO_SecPSP;
107}
108
109static inline unsigned long cmo_get_page_size(void)
110{
111	return CMO_PageSize;
112}
113
114int dlpar_workqueue_init(void);
115
116extern u32 pseries_security_flavor;
117void pseries_setup_security_mitigations(void);
118
119#ifdef CONFIG_PPC_64S_HASH_MMU
120void pseries_lpar_read_hblkrm_characteristics(void);
121#else
122static inline void pseries_lpar_read_hblkrm_characteristics(void) { }
123#endif
124
125void pseries_rng_init(void);
126#ifdef CONFIG_SPAPR_TCE_IOMMU
127struct iommu_group *pSeries_pci_device_group(struct pci_controller *hose,
128					     struct pci_dev *pdev);
129#endif
130
131#endif /* _PSERIES_PSERIES_H */