8098428c54
Aside of switching over to the new interface, record the number of registered CPUs locally, which allows to make num_processors and disabled_cpus confined to the topology code. No functional change intended. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Sohil Mehta <sohil.mehta@intel.com> Link: https://lore.kernel.org/r/20240213210251.830955273@linutronix.de
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_MPSPEC_H
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#define _ASM_X86_MPSPEC_H
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#include <linux/types.h>
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#include <asm/mpspec_def.h>
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#include <asm/x86_init.h>
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#include <asm/apicdef.h>
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extern int pic_mode;
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#ifdef CONFIG_X86_32
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/*
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* Summit or generic (i.e. installer) kernels need lots of bus entries.
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* Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets.
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*/
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#if CONFIG_BASE_SMALL == 0
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# define MAX_MP_BUSSES 260
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#else
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# define MAX_MP_BUSSES 32
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#endif
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#define MAX_IRQ_SOURCES 256
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#else /* CONFIG_X86_64: */
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#define MAX_MP_BUSSES 256
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/* Each PCI slot may be a combo card with its own bus. 4 IRQ pins per slot. */
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#define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
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#endif /* CONFIG_X86_64 */
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#ifdef CONFIG_EISA
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extern int mp_bus_id_to_type[MAX_MP_BUSSES];
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#endif
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extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
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extern u32 boot_cpu_physical_apicid;
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extern u8 boot_cpu_apic_version;
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#ifdef CONFIG_X86_LOCAL_APIC
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extern int smp_found_config;
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#else
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# define smp_found_config 0
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#endif
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#ifdef CONFIG_X86_MPPARSE
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extern void e820__memblock_alloc_reserved_mpc_new(void);
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extern int enable_update_mptable;
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extern void mpparse_find_mptable(void);
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extern void mpparse_parse_early_smp_config(void);
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extern void mpparse_parse_smp_config(void);
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#else
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static inline void e820__memblock_alloc_reserved_mpc_new(void) { }
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#define enable_update_mptable 0
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#define mpparse_find_mptable x86_init_noop
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#define mpparse_parse_early_smp_config x86_init_noop
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#define mpparse_parse_smp_config x86_init_noop
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#endif
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extern DECLARE_BITMAP(phys_cpu_present_map, MAX_LOCAL_APIC);
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static inline void reset_phys_cpu_present_map(u32 apicid)
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{
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bitmap_zero(phys_cpu_present_map, MAX_LOCAL_APIC);
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set_bit(apicid, phys_cpu_present_map);
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}
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static inline void copy_phys_cpu_present_map(unsigned long *dst)
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{
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bitmap_copy(dst, phys_cpu_present_map, MAX_LOCAL_APIC);
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}
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#endif /* _ASM_X86_MPSPEC_H */
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