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b27fe1c3ba
There is no reason now why do we need to allocate trampoline page very early in the boot process. The only requirement for the page is that it is below 1M to be usable by the real mode during init. This can be handled by vm_alloc_contig() when we do the startup. Also assert that startup trampoline fits into single page. In principle we can do multi-page allocation if needed, but it is not. Move the alloc_ap_trampoline() function and the boot_address variable to i386/mp_machdep.c. Keep existing mechanism of early alloc on i386. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D31343
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/*-
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* SPDX-License-Identifier: Beerware
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*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*
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* $FreeBSD$
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*
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*/
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#ifndef _X86_X86_SMP_H_
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#define _X86_X86_SMP_H_
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#include <sys/bus.h>
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#include <machine/frame.h>
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#include <machine/intr_machdep.h>
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#include <x86/apicvar.h>
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#include <machine/pcb.h>
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struct pmap;
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#ifdef __i386__
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extern unsigned int boot_address;
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#endif
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/* global data in mp_x86.c */
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extern int mp_naps;
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extern int boot_cpu_id;
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extern struct pcb stoppcbs[];
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extern int cpu_apic_ids[];
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extern int bootAP;
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extern void *dpcpu;
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extern char *bootSTK;
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extern void *bootstacks[];
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extern unsigned int bootMP_size;
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extern volatile int aps_ready;
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extern struct mtx ap_boot_mtx;
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extern int cpu_logical;
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extern int cpu_cores;
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extern volatile uint32_t smp_tlb_generation;
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extern struct pmap *smp_tlb_pmap;
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extern vm_offset_t smp_tlb_addr1, smp_tlb_addr2;
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extern u_int xhits_gbl[];
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extern u_int xhits_pg[];
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extern u_int xhits_rng[];
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extern u_int ipi_global;
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extern u_int ipi_page;
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extern u_int ipi_range;
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extern u_int ipi_range_size;
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extern int nmi_kdb_lock;
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extern int nmi_is_broadcast;
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struct cpu_info {
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int cpu_present:1;
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int cpu_bsp:1;
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int cpu_disabled:1;
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int cpu_hyperthread:1;
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};
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extern struct cpu_info *cpu_info;
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/*
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* Set if MWAIT does not reliably wake when the MONITORed address is written.
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*/
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extern bool mwait_cpustop_broken;
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#ifdef COUNT_IPIS
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extern u_long *ipi_invltlb_counts[MAXCPU];
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extern u_long *ipi_invlrng_counts[MAXCPU];
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extern u_long *ipi_invlpg_counts[MAXCPU];
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extern u_long *ipi_invlcache_counts[MAXCPU];
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extern u_long *ipi_rendezvous_counts[MAXCPU];
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#endif
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/* IPI handlers */
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inthand_t
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IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
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IDTVEC(ipi_swi), /* Runs delayed SWI */
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IDTVEC(cpustop), /* CPU stops & waits to be restarted */
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IDTVEC(cpususpend), /* CPU suspends & waits to be resumed */
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IDTVEC(rendezvous); /* handle CPU rendezvous */
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typedef void (*smp_invl_cb_t)(struct pmap *, vm_offset_t addr1,
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vm_offset_t addr2);
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#ifdef __i386__
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void alloc_ap_trampoline(vm_paddr_t *physmap, unsigned int *physmap_idx);
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#endif
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/* functions in x86_mp.c */
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void assign_cpu_ids(void);
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void cpu_add(u_int apic_id, char boot_cpu);
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void cpustop_handler(void);
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void cpususpend_handler(void);
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void init_secondary_tail(void);
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void init_secondary(void);
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void ipi_startup(int apic_id, int vector);
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void ipi_all_but_self(u_int ipi);
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void ipi_bitmap_handler(struct trapframe frame);
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void ipi_cpu(int cpu, u_int ipi);
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int ipi_nmi_handler(void);
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void ipi_swi_handler(struct trapframe frame);
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void ipi_selected(cpuset_t cpus, u_int ipi);
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void ipi_self_from_nmi(u_int vector);
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void set_interrupt_apic_ids(void);
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void smp_cache_flush(smp_invl_cb_t curcpu_cb);
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void smp_masked_invlpg(cpuset_t mask, vm_offset_t addr, struct pmap *pmap,
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smp_invl_cb_t curcpu_cb);
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void smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva,
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vm_offset_t endva, struct pmap *pmap, smp_invl_cb_t curcpu_cb);
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void smp_masked_invltlb(cpuset_t mask, struct pmap *pmap,
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smp_invl_cb_t curcpu_cb);
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void mem_range_AP_init(void);
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void topo_probe(void);
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#endif
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