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 void __init 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 void pSeries_machine_check_log_err(void); 25 26 #ifdef CONFIG_SMP 27 extern void smp_init_pseries(void); 28 29 /* Get state of physical CPU from query_cpu_stopped */ 30 int smp_query_cpu_stopped(unsigned int pcpu); 31 #define QCSS_STOPPED 0 32 #define QCSS_STOPPING 1 33 #define QCSS_NOT_STOPPED 2 34 #define QCSS_HARDWARE_ERROR -1 35 #define QCSS_HARDWARE_BUSY -2 36 #else 37 static inline void smp_init_pseries(void) { } 38 #endif 39 40 extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary); 41 42 extern void pSeries_final_fixup(void); 43 44 /* Poweron flag used for enabling auto ups restart */ 45 extern unsigned long rtas_poweron_auto; 46 47 /* Dynamic logical Partitioning/Mobility */ 48 extern void dlpar_free_cc_nodes(struct device_node *); 49 extern void dlpar_free_cc_property(struct property *); 50 extern struct device_node *dlpar_configure_connector(__be32, 51 struct device_node *); 52 extern int dlpar_attach_node(struct device_node *, struct device_node *); 53 extern int dlpar_detach_node(struct device_node *); 54 extern int dlpar_acquire_drc(u32 drc_index); 55 extern int dlpar_release_drc(u32 drc_index); 56 extern int dlpar_unisolate_drc(u32 drc_index); 57 58 void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog); 59 int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog); 60 61 #ifdef CONFIG_MEMORY_HOTPLUG 62 int dlpar_memory(struct pseries_hp_errorlog *hp_elog); 63 int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog); 64 #else 65 static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog) 66 { 67 return -EOPNOTSUPP; 68 } 69 static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog) 70 { 71 return -EOPNOTSUPP; 72 } 73 #endif 74 75 #ifdef CONFIG_HOTPLUG_CPU 76 int dlpar_cpu(struct pseries_hp_errorlog *hp_elog); 77 #else 78 static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) 79 { 80 return -EOPNOTSUPP; 81 } 82 #endif 83 84 /* PCI root bridge prepare function override for pseries */ 85 struct pci_host_bridge; 86 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); 87 88 extern struct pci_controller_ops pseries_pci_controller_ops; 89 int pseries_msi_allocate_domains(struct pci_controller *phb); 90 void pseries_msi_free_domains(struct pci_controller *phb); 91 92 unsigned long pseries_memory_block_size(void); 93 94 extern int CMO_PrPSP; 95 extern int CMO_SecPSP; 96 extern unsigned long CMO_PageSize; 97 98 static inline int cmo_get_primary_psp(void) 99 { 100 return CMO_PrPSP; 101 } 102 103 static inline int cmo_get_secondary_psp(void) 104 { 105 return CMO_SecPSP; 106 } 107 108 static inline unsigned long cmo_get_page_size(void) 109 { 110 return CMO_PageSize; 111 } 112 113 int dlpar_workqueue_init(void); 114 115 extern u32 pseries_security_flavor; 116 void pseries_setup_security_mitigations(void); 117 118 #ifdef CONFIG_PPC_64S_HASH_MMU 119 void pseries_lpar_read_hblkrm_characteristics(void); 120 #else 121 static inline void pseries_lpar_read_hblkrm_characteristics(void) { } 122 #endif 123 124 #endif /* _PSERIES_PSERIES_H */ 125