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 12struct device_node; 13 14void __init request_event_sources_irqs(struct device_node *np, 15 irq_handler_t handler, const char *name); 16 17#include <linux/of.h> 18 19struct pt_regs; 20 21extern int pSeries_system_reset_exception(struct pt_regs *regs); 22extern int pSeries_machine_check_exception(struct pt_regs *regs); 23extern long pseries_machine_check_realmode(struct pt_regs *regs); 24void pSeries_machine_check_log_err(void); 25 26#ifdef CONFIG_SMP 27extern void smp_init_pseries(void); 28 29/* Get state of physical CPU from query_cpu_stopped */ 30int 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 37static inline void smp_init_pseries(void) { } 38#endif 39 40extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary); 41void pseries_machine_kexec(struct kimage *image); 42 43extern void pSeries_final_fixup(void); 44 45/* Poweron flag used for enabling auto ups restart */ 46extern unsigned long rtas_poweron_auto; 47 48/* Dynamic logical Partitioning/Mobility */ 49extern void dlpar_free_cc_nodes(struct device_node *); 50extern void dlpar_free_cc_property(struct property *); 51extern struct device_node *dlpar_configure_connector(__be32, 52 struct device_node *); 53extern int dlpar_attach_node(struct device_node *, struct device_node *); 54extern int dlpar_detach_node(struct device_node *); 55extern int dlpar_acquire_drc(u32 drc_index); 56extern int dlpar_release_drc(u32 drc_index); 57extern int dlpar_unisolate_drc(u32 drc_index); 58extern void post_mobility_fixup(void); 59 60void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog); 61int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog); 62 63#ifdef CONFIG_MEMORY_HOTPLUG 64int dlpar_memory(struct pseries_hp_errorlog *hp_elog); 65int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog); 66#else 67static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog) 68{ 69 return -EOPNOTSUPP; 70} 71static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog) 72{ 73 return -EOPNOTSUPP; 74} 75#endif 76 77#ifdef CONFIG_HOTPLUG_CPU 78int dlpar_cpu(struct pseries_hp_errorlog *hp_elog); 79void pseries_cpu_hotplug_init(void); 80#else 81static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) 82{ 83 return -EOPNOTSUPP; 84} 85static inline void pseries_cpu_hotplug_init(void) { } 86#endif 87 88/* PCI root bridge prepare function override for pseries */ 89struct pci_host_bridge; 90int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); 91 92extern struct pci_controller_ops pseries_pci_controller_ops; 93int pseries_msi_allocate_domains(struct pci_controller *phb); 94void pseries_msi_free_domains(struct pci_controller *phb); 95 96extern int CMO_PrPSP; 97extern int CMO_SecPSP; 98extern unsigned long CMO_PageSize; 99 100static inline int cmo_get_primary_psp(void) 101{ 102 return CMO_PrPSP; 103} 104 105static inline int cmo_get_secondary_psp(void) 106{ 107 return CMO_SecPSP; 108} 109 110static inline unsigned long cmo_get_page_size(void) 111{ 112 return CMO_PageSize; 113} 114 115int dlpar_workqueue_init(void); 116 117extern u32 pseries_security_flavor; 118void pseries_setup_security_mitigations(void); 119 120#ifdef CONFIG_PPC_64S_HASH_MMU 121void pseries_lpar_read_hblkrm_characteristics(void); 122#else 123static inline void pseries_lpar_read_hblkrm_characteristics(void) { } 124#endif 125 126void pseries_rng_init(void); 127#ifdef CONFIG_SPAPR_TCE_IOMMU 128struct iommu_group *pSeries_pci_device_group(struct pci_controller *hose, 129 struct pci_dev *pdev); 130#endif 131 132#endif /* _PSERIES_PSERIES_H */ 133