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 extern int dlpar_unisolate_drc(u32 drc_index); 56 57 void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog); 58 int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog); 59 60 #ifdef CONFIG_MEMORY_HOTPLUG 61 int dlpar_memory(struct pseries_hp_errorlog *hp_elog); 62 int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog); 63 #else 64 static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog) 65 { 66 return -EOPNOTSUPP; 67 } 68 static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog) 69 { 70 return -EOPNOTSUPP; 71 } 72 #endif 73 74 #ifdef CONFIG_HOTPLUG_CPU 75 int dlpar_cpu(struct pseries_hp_errorlog *hp_elog); 76 #else 77 static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) 78 { 79 return -EOPNOTSUPP; 80 } 81 #endif 82 83 /* PCI root bridge prepare function override for pseries */ 84 struct pci_host_bridge; 85 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); 86 87 extern struct pci_controller_ops pseries_pci_controller_ops; 88 89 unsigned long pseries_memory_block_size(void); 90 91 extern int CMO_PrPSP; 92 extern int CMO_SecPSP; 93 extern unsigned long CMO_PageSize; 94 95 static inline int cmo_get_primary_psp(void) 96 { 97 return CMO_PrPSP; 98 } 99 100 static inline int cmo_get_secondary_psp(void) 101 { 102 return CMO_SecPSP; 103 } 104 105 static inline unsigned long cmo_get_page_size(void) 106 { 107 return CMO_PageSize; 108 } 109 110 int dlpar_workqueue_init(void); 111 112 extern u32 pseries_security_flavor; 113 void pseries_setup_security_mitigations(void); 114 void pseries_lpar_read_hblkrm_characteristics(void); 115 116 #endif /* _PSERIES_PSERIES_H */ 117