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 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 void pseries_cpu_hotplug_init(void); 79 #else 80 static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) 81 { 82 return -EOPNOTSUPP; 83 } 84 static inline void pseries_cpu_hotplug_init(void) { } 85 #endif 86 87 /* PCI root bridge prepare function override for pseries */ 88 struct pci_host_bridge; 89 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); 90 91 extern struct pci_controller_ops pseries_pci_controller_ops; 92 int pseries_msi_allocate_domains(struct pci_controller *phb); 93 void pseries_msi_free_domains(struct pci_controller *phb); 94 95 unsigned long pseries_memory_block_size(void); 96 97 extern int CMO_PrPSP; 98 extern int CMO_SecPSP; 99 extern unsigned long CMO_PageSize; 100 101 static inline int cmo_get_primary_psp(void) 102 { 103 return CMO_PrPSP; 104 } 105 106 static inline int cmo_get_secondary_psp(void) 107 { 108 return CMO_SecPSP; 109 } 110 111 static inline unsigned long cmo_get_page_size(void) 112 { 113 return CMO_PageSize; 114 } 115 116 int dlpar_workqueue_init(void); 117 118 extern u32 pseries_security_flavor; 119 void pseries_setup_security_mitigations(void); 120 121 #ifdef CONFIG_PPC_64S_HASH_MMU 122 void pseries_lpar_read_hblkrm_characteristics(void); 123 #else 124 static inline void pseries_lpar_read_hblkrm_characteristics(void) { } 125 #endif 126 127 void pseries_rng_init(void); 128 #ifdef CONFIG_SPAPR_TCE_IOMMU 129 struct iommu_group *pSeries_pci_device_group(struct pci_controller *hose, 130 struct pci_dev *pdev); 131 #endif 132 133 #endif /* _PSERIES_PSERIES_H */ 134