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1211ee61b4
The PAPR document specifies the TLB Block Invalidate Characteristics
which tells for each pair of segment base page size, actual page size,
the size of the block the hcall H_BLOCK_REMOVE supports.
These characteristics are loaded at boot time in a new table
hblkr_size. The table is separate from the mmu_psize_def because this
is specific to the pseries platform.
A new init function, pseries_lpar_read_hblkrm_characteristics() is
added to read the characteristics. It is called from
pSeries_setup_arch().
Fixes: ba2dd8a26b ("powerpc/pseries/mm: call H_BLOCK_REMOVE")
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190920130523.20441-2-ldufour@linux.ibm.com
118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright 2006 IBM Corporation.
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*/
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#ifndef _PSERIES_PSERIES_H
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#define _PSERIES_PSERIES_H
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#include <linux/interrupt.h>
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#include <asm/rtas.h>
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struct device_node;
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extern void request_event_sources_irqs(struct device_node *np,
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irq_handler_t handler, const char *name);
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#include <linux/of.h>
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struct pt_regs;
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extern int pSeries_system_reset_exception(struct pt_regs *regs);
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extern int pSeries_machine_check_exception(struct pt_regs *regs);
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extern long pseries_machine_check_realmode(struct pt_regs *regs);
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#ifdef CONFIG_SMP
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extern void smp_init_pseries(void);
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/* Get state of physical CPU from query_cpu_stopped */
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int smp_query_cpu_stopped(unsigned int pcpu);
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#define QCSS_STOPPED 0
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#define QCSS_STOPPING 1
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#define QCSS_NOT_STOPPED 2
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#define QCSS_HARDWARE_ERROR -1
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#define QCSS_HARDWARE_BUSY -2
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#else
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static inline void smp_init_pseries(void) { };
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#endif
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extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary);
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extern void pSeries_final_fixup(void);
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/* Poweron flag used for enabling auto ups restart */
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extern unsigned long rtas_poweron_auto;
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/* Provided by HVC VIO */
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extern void hvc_vio_init_early(void);
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/* Dynamic logical Partitioning/Mobility */
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extern void dlpar_free_cc_nodes(struct device_node *);
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extern void dlpar_free_cc_property(struct property *);
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extern struct device_node *dlpar_configure_connector(__be32,
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struct device_node *);
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extern int dlpar_attach_node(struct device_node *, struct device_node *);
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extern int dlpar_detach_node(struct device_node *);
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extern int dlpar_acquire_drc(u32 drc_index);
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extern int dlpar_release_drc(u32 drc_index);
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void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog);
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int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_errlog);
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#ifdef CONFIG_MEMORY_HOTPLUG
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int dlpar_memory(struct pseries_hp_errorlog *hp_elog);
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int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog);
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#else
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static inline int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
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{
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return -EOPNOTSUPP;
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}
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static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog)
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{
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return -EOPNOTSUPP;
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}
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#endif
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#ifdef CONFIG_HOTPLUG_CPU
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int dlpar_cpu(struct pseries_hp_errorlog *hp_elog);
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#else
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static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog)
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{
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return -EOPNOTSUPP;
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}
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#endif
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/* PCI root bridge prepare function override for pseries */
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struct pci_host_bridge;
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int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
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extern struct pci_controller_ops pseries_pci_controller_ops;
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unsigned long pseries_memory_block_size(void);
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extern int CMO_PrPSP;
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extern int CMO_SecPSP;
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extern unsigned long CMO_PageSize;
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static inline int cmo_get_primary_psp(void)
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{
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return CMO_PrPSP;
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}
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static inline int cmo_get_secondary_psp(void)
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{
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return CMO_SecPSP;
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}
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static inline unsigned long cmo_get_page_size(void)
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{
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return CMO_PageSize;
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}
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int dlpar_workqueue_init(void);
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void pseries_setup_rfi_flush(void);
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void pseries_lpar_read_hblkrm_characteristics(void);
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#endif /* _PSERIES_PSERIES_H */
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