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 */ 118