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
  12 struct device_node;
  13
  14 extern void request_event_sources_irqs(struct device_node *np,
  15                                        irq_handler_t handler, const char *name);
  16
  17 #include <linux/of.h>
  18
  19 struct pt_regs;
  20
  21 extern int pSeries_system_reset_exception(struct pt_regs *regs);
  22 extern int pSeries_machine_check_exception(struct pt_regs *regs);
  23 extern long pseries_machine_check_realmode(struct pt_regs *regs);
  24
  25 #ifdef CONFIG_SMP
  26 extern void smp_init_pseries(void);
  27
  28 /* Get state of physical CPU from query_cpu_stopped */
  29 int 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
  36 static inline void smp_init_pseries(void) { };
  37 #endif
  38
  39 extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary);
  40
  41 extern void pSeries_final_fixup(void);
  42
  43 /* Poweron flag used for enabling auto ups restart */
  44 extern unsigned long rtas_poweron_auto;
  45
  46 /* Provided by HVC VIO */
  47 extern void hvc_vio_init_early(void);
  48
  49 /* Dynamic logical Partitioning/Mobility */
  50 extern void dlpar_free_cc_nodes(struct device_node *);
  51 extern void dlpar_free_cc_property(struct property *);
  52 extern struct device_node *dlpar_configure_connector(__be32,
  53                                                 struct device_node *);
  54 extern int dlpar_attach_node(struct device_node *, struct device_node *);
  55 extern int dlpar_detach_node(struct device_node *);
  56 extern int dlpar_acquire_drc(u32 drc_index);
  57 extern int dlpar_release_drc(u32 drc_index);
  58
  59 void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog);
  60 int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog);
  61
  62 #ifdef CONFIG_MEMORY_HOTPLUG
  63 int dlpar_memory(struct pseries_hp_errorlog *hp_elog);
  64 int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog);
  65 #else
  66 static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
  67 {
  68         return -EOPNOTSUPP;
  69 }
  70 static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog)
  71 {
  72         return -EOPNOTSUPP;
  73 }
  74 #endif
  75
  76 #ifdef CONFIG_HOTPLUG_CPU
  77 int dlpar_cpu(struct pseries_hp_errorlog *hp_elog);
  78 #else
  79 static 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 */
  86 struct pci_host_bridge;
  87 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
  88
  89 extern struct pci_controller_ops pseries_pci_controller_ops;
  90
  91 unsigned long pseries_memory_block_size(void);
  92
  93 extern int CMO_PrPSP;
  94 extern int CMO_SecPSP;
  95 extern unsigned long CMO_PageSize;
  96
  97 static inline int cmo_get_primary_psp(void)
  98 {
  99         return CMO_PrPSP;
 100 }
 101
 102 static inline int cmo_get_secondary_psp(void)
 103 {
 104         return CMO_SecPSP;
 105 }
 106
 107 static inline unsigned long cmo_get_page_size(void)
 108 {
 109         return CMO_PageSize;
 110 }
 111
 112 int dlpar_workqueue_init(void);
 113
 114 void pseries_setup_security_mitigations(void);
 115 void pseries_lpar_read_hblkrm_characteristics(void);
 116
 117 #endif /* _PSERIES_PSERIES_H */