LXR linux/arch/powerpc/platforms/pseries/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
  14extern void 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);
  24
  25#ifdef CONFIG_SMP
  26extern void smp_init_pseries(void);
  27
  28/* Get state of physical CPU from query_cpu_stopped */
  29int smp_query_cpu_stopped(unsigned int pcpu);
  30#define QCSS_STOPPED 0
  31#define QCSS_STOPPING 1
  32#define QCSS_NOT_STOPPED 2
  33#define QCSS_HARDWARE_ERROR -1
  34#define QCSS_HARDWARE_BUSY -2
  35#else
  36static inline void smp_init_pseries(void) { }
  37#endif
  38
  39extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary);
  40
  41extern void pSeries_final_fixup(void);
  42
  43/* Poweron flag used for enabling auto ups restart */
  44extern unsigned long rtas_poweron_auto;
  45
  46/* Provided by HVC VIO */
  47extern void hvc_vio_init_early(void);
  48
  49/* Dynamic logical Partitioning/Mobility */
  50extern void dlpar_free_cc_nodes(struct device_node *);
  51extern void dlpar_free_cc_property(struct property *);
  52extern struct device_node *dlpar_configure_connector(__be32,
  53                                                struct device_node *);
  54extern int dlpar_attach_node(struct device_node *, struct device_node *);
  55extern int dlpar_detach_node(struct device_node *);
  56extern int dlpar_acquire_drc(u32 drc_index);
  57extern int dlpar_release_drc(u32 drc_index);
  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);
  78#else
  79static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog)
  80{
  81        return -EOPNOTSUPP;
  82}
  83#endif
  84
  85/* PCI root bridge prepare function override for pseries */
  86struct pci_host_bridge;
  87int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
  88
  89extern struct pci_controller_ops pseries_pci_controller_ops;
  90
  91unsigned long pseries_memory_block_size(void);
  92
  93extern int CMO_PrPSP;
  94extern int CMO_SecPSP;
  95extern unsigned long CMO_PageSize;
  96
  97static inline int cmo_get_primary_psp(void)
  98{
  99        return CMO_PrPSP;
 100}
 101
 102static inline int cmo_get_secondary_psp(void)
 103{
 104        return CMO_SecPSP;
 105}
 106
 107static inline unsigned long cmo_get_page_size(void)
 108{
 109        return CMO_PageSize;
 110}
 111
 112int dlpar_workqueue_init(void);
 113
 114void pseries_setup_security_mitigations(void);
 115void pseries_lpar_read_hblkrm_characteristics(void);
 116
 117#endif /* _PSERIES_PSERIES_H */
 118