mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
f1b665c8fe
- It actually works this time, honest!
- Fine grained TLB shootdowns for SMP on i386. IPI's are very expensive,
so try and optimize things where possible.
- Introduce ranged shootdowns that can be done as a single IPI.
- PG_G support for i386
- Specific-cpu targeted shootdowns. For example, there is no sense in
globally purging the TLB cache for where we are stealing a page from
the local unshared process on the local cpu. Use pm_active to track
this.
- Add some instrumentation for the tlb shootdown code.
- Rip out SMP code from <machine/cpufunc.h>
- Try and fix some very bogus PG_G and PG_PS interactions that were bad
enough to cause vm86 bios calls to break. vm86 depended on our existing
bugs and this was the cause of the VESA panics last time.
- Fix the silly one-line error that caused the 'panic: bad pte' last time.
- Fix a couple of other silly one-line errors that should have caused more
pain than they did.
Some more work is needed:
- pmap_{zero,copy}_page[_idle]. These can be done without IPI's if we
have a hook in cpu_switch.
- The IPI handlers need some cleanup. I have a bogus %ds load that can
be avoided.
- APTD handling is rather bogus and appears to be a large source of
global TLB IPI shootdowns for no really good reason.
I see speedups of between 1.5% and ~4% on buildworlds in a while 1 loop.
I expect to see a bigger difference when there is significant pageout
activity or the system otherwise has memory shortages.
I have backed out a few optimizations that I had been using over the last
few days in order to be a little more conservative. I'll revisit these
again over the next few days as the dust settles.
New option: DISABLE_PG_G - In case I missed something.
158 lines
4.4 KiB
C
158 lines
4.4 KiB
C
/*
|
|
* ----------------------------------------------------------------------------
|
|
* "THE BEER-WARE LICENSE" (Revision 42):
|
|
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
|
|
* can do whatever you want with this stuff. If we meet some day, and you think
|
|
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
*/
|
|
|
|
#ifndef _MACHINE_SMP_H_
|
|
#define _MACHINE_SMP_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#if defined(SMP) && defined(I386_CPU) && !defined(COMPILING_LINT)
|
|
#error SMP not supported with I386_CPU
|
|
#endif
|
|
#if defined(SMP) && !defined(APIC_IO)
|
|
# error APIC_IO required for SMP, add "options APIC_IO" to your config file.
|
|
#endif /* SMP && !APIC_IO */
|
|
|
|
#if defined(SMP) || defined(APIC_IO)
|
|
|
|
#ifndef LOCORE
|
|
|
|
/*
|
|
* For sending values to POST displays.
|
|
* XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
|
|
*/
|
|
extern int current_postcode; /** XXX currently in mp_machdep.c */
|
|
#define POSTCODE(X) current_postcode = (X), \
|
|
outb(0x80, current_postcode)
|
|
#define POSTCODE_LO(X) current_postcode &= 0xf0, \
|
|
current_postcode |= ((X) & 0x0f), \
|
|
outb(0x80, current_postcode)
|
|
#define POSTCODE_HI(X) current_postcode &= 0x0f, \
|
|
current_postcode |= (((X) << 4) & 0xf0), \
|
|
outb(0x80, current_postcode)
|
|
|
|
|
|
#include <sys/bus.h> /* XXX */
|
|
#include <machine/apic.h>
|
|
#include <machine/frame.h>
|
|
#include <i386/isa/icu.h>
|
|
#include <i386/isa/intr_machdep.h>
|
|
|
|
/*
|
|
* Interprocessor interrupts for SMP.
|
|
*/
|
|
#define IPI_INVLTLB XINVLTLB_OFFSET
|
|
#define IPI_INVLPG XINVLPG_OFFSET
|
|
#define IPI_INVLRNG XINVLRNG_OFFSET
|
|
#define IPI_RENDEZVOUS XRENDEZVOUS_OFFSET
|
|
#define IPI_AST XCPUAST_OFFSET
|
|
#define IPI_STOP XCPUSTOP_OFFSET
|
|
#define IPI_HARDCLOCK XHARDCLOCK_OFFSET
|
|
#define IPI_STATCLOCK XSTATCLOCK_OFFSET
|
|
|
|
/* global data in mpboot.s */
|
|
extern int bootMP_size;
|
|
|
|
/* functions in mpboot.s */
|
|
void bootMP(void);
|
|
|
|
/* global data in mp_machdep.c */
|
|
extern int bsp_apic_ready;
|
|
extern int mp_naps;
|
|
extern int mp_nbusses;
|
|
extern int mp_napics;
|
|
extern int mp_picmode;
|
|
extern int boot_cpu_id;
|
|
extern vm_offset_t cpu_apic_address;
|
|
extern vm_offset_t io_apic_address[];
|
|
extern u_int32_t cpu_apic_versions[];
|
|
extern u_int32_t *io_apic_versions;
|
|
extern int cpu_num_to_apic_id[];
|
|
extern int io_num_to_apic_id[];
|
|
extern int apic_id_to_logical[];
|
|
#define APIC_INTMAPSIZE 32
|
|
struct apic_intmapinfo {
|
|
int ioapic;
|
|
int int_pin;
|
|
volatile void *apic_address;
|
|
int redirindex;
|
|
};
|
|
extern struct apic_intmapinfo int_to_apicintpin[];
|
|
extern struct pcb stoppcbs[];
|
|
|
|
/* functions in mp_machdep.c */
|
|
void i386_mp_probe(void);
|
|
u_int mp_bootaddress(u_int);
|
|
u_int isa_apic_mask(u_int);
|
|
int isa_apic_irq(int);
|
|
int pci_apic_irq(int, int, int);
|
|
int apic_irq(int, int);
|
|
int next_apic_irq(int);
|
|
int undirect_isa_irq(int);
|
|
int undirect_pci_irq(int);
|
|
int apic_bus_type(int);
|
|
int apic_src_bus_id(int, int);
|
|
int apic_src_bus_irq(int, int);
|
|
int apic_int_type(int, int);
|
|
int apic_trigger(int, int);
|
|
int apic_polarity(int, int);
|
|
void assign_apic_irq(int apic, int intpin, int irq);
|
|
void revoke_apic_irq(int irq);
|
|
void bsp_apic_configure(void);
|
|
void init_secondary(void);
|
|
void forward_statclock(void);
|
|
void forwarded_statclock(struct trapframe frame);
|
|
void forward_hardclock(void);
|
|
void forwarded_hardclock(struct trapframe frame);
|
|
void ipi_selected(u_int cpus, u_int ipi);
|
|
void ipi_all(u_int ipi);
|
|
void ipi_all_but_self(u_int ipi);
|
|
void ipi_self(u_int ipi);
|
|
#ifdef APIC_INTR_REORDER
|
|
void set_lapic_isrloc(int, int);
|
|
#endif /* APIC_INTR_REORDER */
|
|
void smp_invlpg(vm_offset_t addr);
|
|
void smp_masked_invlpg(u_int mask, vm_offset_t addr);
|
|
void smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
|
|
void smp_masked_invlpg_range(u_int mask, vm_offset_t startva,
|
|
vm_offset_t endva);
|
|
void smp_invltlb(void);
|
|
void smp_masked_invltlb(u_int mask);
|
|
|
|
/* global data in mpapic.c */
|
|
extern volatile lapic_t lapic;
|
|
extern volatile ioapic_t **ioapic;
|
|
|
|
/* functions in mpapic.c */
|
|
void apic_dump(char*);
|
|
void apic_initialize(void);
|
|
void imen_dump(void);
|
|
int apic_ipi(int, int, int);
|
|
int selected_apic_ipi(u_int, int, int);
|
|
int io_apic_setup(int);
|
|
void io_apic_setup_intpin(int, int);
|
|
void io_apic_set_id(int, int);
|
|
int io_apic_get_id(int);
|
|
int ext_int_setup(int, int);
|
|
|
|
void set_apic_timer(int);
|
|
int read_apic_timer(void);
|
|
void u_sleep(int);
|
|
u_int io_apic_read(int, int);
|
|
void io_apic_write(int, int, u_int);
|
|
|
|
#endif /* !LOCORE */
|
|
#endif /* SMP && !APIC_IO */
|
|
|
|
#endif /* _KERNEL */
|
|
#endif /* _MACHINE_SMP_H_ */
|