text: /* SPDX-License-Identifier: GPL-2.0-or-later */
  /*
   * Copyright 2006 IBM Corporation.
   */
  
  #ifndef _PSERIES_PSERIES_H
  #define _PSERIES_PSERIES_H
  
  #include <linux/interrupt.h>
  #include <asm/rtas.h>
  
  struct device_node;
  
  extern void request_event_sources_irqs(struct device_node *np,
  				       irq_handler_t handler, const char *name);
  
  #include <linux/of.h>
  
  struct pt_regs;
  
  extern int pSeries_system_reset_exception(struct pt_regs *regs);
  extern int pSeries_machine_check_exception(struct pt_regs *regs);
  extern long pseries_machine_check_realmode(struct pt_regs *regs);
  
  #ifdef CONFIG_SMP
  extern void smp_init_pseries(void);
  
  /* Get state of physical CPU from query_cpu_stopped */
  int smp_query_cpu_stopped(unsigned int pcpu);
  #define QCSS_STOPPED 0
  #define QCSS_STOPPING 1
  #define QCSS_NOT_STOPPED 2
  #define QCSS_HARDWARE_ERROR -1
  #define QCSS_HARDWARE_BUSY -2
  #else
  static inline void smp_init_pseries(void) { }
  #endif
  
  extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary);
  
  extern void pSeries_final_fixup(void);
  
  /* Poweron flag used for enabling auto ups restart */
  extern unsigned long rtas_poweron_auto;
  
  /* Dynamic logical Partitioning/Mobility */
  extern void dlpar_free_cc_nodes(struct device_node *);
  extern void dlpar_free_cc_property(struct property *);
  extern struct device_node *dlpar_configure_connector(__be32,
  						struct device_node *);
  extern int dlpar_attach_node(struct device_node *, struct device_node *);
  extern int dlpar_detach_node(struct device_node *);
  extern int dlpar_acquire_drc(u32 drc_index);
  extern int dlpar_release_drc(u32 drc_index);
  extern int dlpar_unisolate_drc(u32 drc_index);
  
  void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog);
  int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog);
  
  #ifdef CONFIG_MEMORY_HOTPLUG
  int dlpar_memory(struct pseries_hp_errorlog *hp_elog);
  int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog);
  #else
  static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
  {
  	return -EOPNOTSUPP;
  }
  static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog)
  {
  	return -EOPNOTSUPP;
  }
  #endif
  
  #ifdef CONFIG_HOTPLUG_CPU
  int dlpar_cpu(struct pseries_hp_errorlog *hp_elog);
  #else
  static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog)
  {
  	return -EOPNOTSUPP;
  }
  #endif
  
  /* PCI root bridge prepare function override for pseries */
  struct pci_host_bridge;
  int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
  
  extern struct pci_controller_ops pseries_pci_controller_ops;
  int pseries_msi_allocate_domains(struct pci_controller *phb);
  void pseries_msi_free_domains(struct pci_controller *phb);
  
  unsigned long pseries_memory_block_size(void);
  
  extern int CMO_PrPSP;
  extern int CMO_SecPSP;
  extern unsigned long CMO_PageSize;
  
  static inline int cmo_get_primary_psp(void)
  {
  	return CMO_PrPSP;
  }
  
  static inline int cmo_get_secondary_psp(void)
  {
  	return CMO_SecPSP;
  }
  
  static inline unsigned long cmo_get_page_size(void)
  {
  	return CMO_PageSize;
  }
  
  int dlpar_workqueue_init(void);
  
  extern u32 pseries_security_flavor;
  void pseries_setup_security_mitigations(void);
  void pseries_lpar_read_hblkrm_characteristics(void);
  
  #endif /* _PSERIES_PSERIES_H */
  