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 void pseries_machine_kexec(struct kimage *image); 42 43 extern void pSeries_final_fixup(void); 44 45 /* Poweron flag used for enabling auto ups restart */ 46 extern unsigned long rtas_poweron_auto; 47 48 /* Dynamic logical Partitioning/Mobility */ 49 extern void dlpar_free_cc_nodes(struct device_node *); 50 extern void dlpar_free_cc_property(struct property *); 51 extern struct device_node *dlpar_configure_connector(__be32, 52 struct device_node *); 53 extern int dlpar_attach_node(struct device_node *, struct device_node *); 54 extern int dlpar_detach_node(struct device_node *); 55 extern int dlpar_acquire_drc(u32 drc_index); 56 extern int dlpar_release_drc(u32 drc_index); 57 extern int dlpar_unisolate_drc(u32 drc_index); 58 extern void post_mobility_fixup(void); 59 60 void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog); 61 int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog); 62 63 #ifdef CONFIG_MEMORY_HOTPLUG 64 int dlpar_memory(struct pseries_hp_errorlog *hp_elog); 65 int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog); 66 #else 67 static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog) 68 { 69 return -EOPNOTSUPP; 70 } 71 static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog) 72 { 73 return -EOPNOTSUPP; 74 } 75 #endif 76 77 #ifdef CONFIG_HOTPLUG_CPU 78 int dlpar_cpu(struct pseries_hp_errorlog *hp_elog); 79 void pseries_cpu_hotplug_init(void); 80 #else 81 static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) 82 { 83 return -EOPNOTSUPP; 84 } 85 static inline void pseries_cpu_hotplug_init(void) { } 86 #endif 87 88 /* PCI root bridge prepare function override for pseries */ 89 struct pci_host_bridge; 90 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); 91 92 extern struct pci_controller_ops pseries_pci_controller_ops; 93 int pseries_msi_allocate_domains(struct pci_controller *phb); 94 void pseries_msi_free_domains(struct pci_controller *phb); 95 96 extern int CMO_PrPSP; 97 extern int CMO_SecPSP; 98 extern unsigned long CMO_PageSize; 99 100 static inline int cmo_get_primary_psp(void) 101 { 102 return CMO_PrPSP; 103 } 104 105 static inline int cmo_get_secondary_psp(void) 106 { 107 return CMO_SecPSP; 108 } 109 110 static inline unsigned long cmo_get_page_size(void) 111 { 112 return CMO_PageSize; 113 } 114 115 int dlpar_workqueue_init(void); 116 117 extern u32 pseries_security_flavor; 118 void pseries_setup_security_mitigations(void); 119 120 #ifdef CONFIG_PPC_64S_HASH_MMU 121 void pseries_lpar_read_hblkrm_characteristics(void); 122 #else 123 static inline void pseries_lpar_read_hblkrm_characteristics(void) { } 124 #endif 125 126 void pseries_rng_init(void); 127 #ifdef CONFIG_SPAPR_TCE_IOMMU 128 struct iommu_group *pSeries_pci_device_group(struct pci_controller *hose, 129 struct pci_dev *pdev); 130 #endif 131 132 #endif /* _PSERIES_PSERIES_H */ 133