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 /* Dynamic logical Partitioning/Mobility */ 47 extern void dlpar_free_cc_nodes(struct device_node *); 48 extern void dlpar_free_cc_property(struct property *); 49 extern struct device_node *dlpar_configure_connector(__be32, 50 struct device_node *); 51 extern int dlpar_attach_node(struct device_node *, struct device_node *); 52 extern int dlpar_detach_node(struct device_node *); 53 extern int dlpar_acquire_drc(u32 drc_index); 54 extern int dlpar_release_drc(u32 drc_index); 55 56 void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog); 57 int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog); 58 59 #ifdef CONFIG_MEMORY_HOTPLUG 60 int dlpar_memory(struct pseries_hp_errorlog *hp_elog); 61 int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog); 62 #else 63 static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog) 64 { 65 return -EOPNOTSUPP; 66 } 67 static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog) 68 { 69 return -EOPNOTSUPP; 70 } 71 #endif 72 73 #ifdef CONFIG_HOTPLUG_CPU 74 int dlpar_cpu(struct pseries_hp_errorlog *hp_elog); 75 #else 76 static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) 77 { 78 return -EOPNOTSUPP; 79 } 80 #endif 81 82 /* PCI root bridge prepare function override for pseries */ 83 struct pci_host_bridge; 84 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); 85 86 extern struct pci_controller_ops pseries_pci_controller_ops; 87 88 unsigned long pseries_memory_block_size(void); 89 90 extern int CMO_PrPSP; 91 extern int CMO_SecPSP; 92 extern unsigned long CMO_PageSize; 93 94 static inline int cmo_get_primary_psp(void) 95 { 96 return CMO_PrPSP; 97 } 98 99 static inline int cmo_get_secondary_psp(void) 100 { 101 return CMO_SecPSP; 102 } 103 104 static inline unsigned long cmo_get_page_size(void) 105 { 106 return CMO_PageSize; 107 } 108 109 int dlpar_workqueue_init(void); 110 111 extern u32 pseries_security_flavor; 112 void pseries_setup_security_mitigations(void); 113 void pseries_lpar_read_hblkrm_characteristics(void); 114 115 #endif /* _PSERIES_PSERIES_H */ 116