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.
194 lines
4.7 KiB
Plaintext
194 lines
4.7 KiB
Plaintext
# $FreeBSD$
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# Options specific to the i386 platform kernels
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MATH_EMULATE opt_math_emulate.h
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GPL_MATH_EMULATE opt_math_emulate.h
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DISABLE_PSE opt_pmap.h
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PMAP_SHPGPERPROC opt_pmap.h
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DISABLE_PG_G opt_pmap.h
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PPC_PROBE_CHIPSET opt_ppc.h
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PPC_DEBUG opt_ppc.h
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SHOW_BUSYBUFS
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PANIC_REBOOT_WAIT_TIME opt_panic.h
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MAXMEM
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PERFMON opt_perfmon.h
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POWERFAIL_NMI opt_trap.h
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AUTO_EOI_1 opt_auto_eoi.h
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AUTO_EOI_2 opt_auto_eoi.h
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I586_PMC_GUPROF opt_i586_guprof.h
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WLCACHE opt_wavelan.h
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WLDEBUG opt_wavelan.h
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COMPAT_OLDISA
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BROKEN_KEYBOARD_RESET opt_reset.h
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KSTACK_PAGES
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# Options for emulators. These should only be used at config time, so
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# they are handled like options for static filesystems
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# (see src/sys/conf/options), except for broken debugging options.
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IBCS2 opt_dontuse.h
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COMPAT_LINUX opt_dontuse.h
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COMPAT_SVR4 opt_dontuse.h
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DEBUG_SVR4 opt_svr4.h
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PECOFF_SUPPORT opt_dontuse.h
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PECOFF_DEBUG opt_pecoff.h
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# i386 SMP options
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APIC_IO opt_global.h
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# Change KVM size. Changes things all over the kernel.
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KVA_PAGES opt_global.h
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CLK_CALIBRATION_LOOP opt_clock.h
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CLK_USE_I8254_CALIBRATION opt_clock.h
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CLK_USE_TSC_CALIBRATION opt_clock.h
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TIMER_FREQ opt_clock.h
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NO_F00F_HACK opt_cpu.h
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CPU_BLUELIGHTNING_FPU_OP_CACHE opt_cpu.h
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CPU_BLUELIGHTNING_3X opt_cpu.h
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CPU_BTB_EN opt_cpu.h
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CPU_CYRIX_NO_LOCK opt_cpu.h
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CPU_DIRECT_MAPPED_CACHE opt_cpu.h
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CPU_DISABLE_5X86_LSSER opt_cpu.h
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CPU_FASTER_5X86_FPU opt_cpu.h
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CPU_I486_ON_386 opt_cpu.h
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CPU_IORT opt_cpu.h
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CPU_L2_LATENCY opt_cpu.h
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CPU_LOOP_EN opt_cpu.h
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CPU_PPRO2CELERON opt_cpu.h
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CPU_RSTK_EN opt_cpu.h
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CPU_SUSP_HLT opt_cpu.h
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CPU_UPGRADE_HW_CACHE opt_cpu.h
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CPU_WT_ALLOC opt_cpu.h
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CYRIX_CACHE_WORKS opt_cpu.h
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CYRIX_CACHE_REALLY_WORKS opt_cpu.h
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NO_MEMORY_HOLE opt_cpu.h
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CPU_ENABLE_SSE opt_cpu.h
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CPU_ATHLON_SSE_HACK opt_cpu.h
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# The CPU type affects the endian conversion functions all over the kernel.
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I386_CPU opt_global.h
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I486_CPU opt_global.h
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I586_CPU opt_global.h
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I686_CPU opt_global.h
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MAXCONS opt_syscons.h
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SC_ALT_MOUSE_IMAGE opt_syscons.h
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SC_CUT_SPACES2TABS opt_syscons.h
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SC_CUT_SEPCHARS opt_syscons.h
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SC_DEBUG_LEVEL opt_syscons.h
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SC_DFLT_FONT opt_syscons.h
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SC_DISABLE_DDBKEY opt_syscons.h
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SC_DISABLE_REBOOT opt_syscons.h
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SC_HISTORY_SIZE opt_syscons.h
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SC_KERNEL_CONS_ATTR opt_syscons.h
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SC_KERNEL_CONS_REV_ATTR opt_syscons.h
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SC_MOUSE_CHAR opt_syscons.h
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SC_NO_CUTPASTE opt_syscons.h
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SC_NO_FONT_LOADING opt_syscons.h
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SC_NO_HISTORY opt_syscons.h
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SC_NO_SYSMOUSE opt_syscons.h
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SC_NORM_ATTR opt_syscons.h
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SC_NORM_REV_ATTR opt_syscons.h
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SC_PIXEL_MODE opt_syscons.h
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SC_RENDER_DEBUG opt_syscons.h
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SC_TWOBUTTON_MOUSE opt_syscons.h
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VGA_ALT_SEQACCESS opt_vga.h
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VGA_DEBUG opt_vga.h
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VGA_NO_FONT_LOADING opt_vga.h
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VGA_NO_MODE_CHANGE opt_vga.h
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VGA_SLOW_IOACCESS opt_vga.h
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VGA_WIDTH90 opt_vga.h
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VESA opt_vesa.h
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VESA_DEBUG opt_vesa.h
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PSM_HOOKRESUME opt_psm.h
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PSM_RESETAFTERSUSPEND opt_psm.h
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PSM_DEBUG opt_psm.h
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PUC_FASTINTR opt_puc.h
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ATKBD_DFLT_KEYMAP opt_atkbd.h
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KBD_DISABLE_KEYMAP_LOAD opt_kbd.h
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KBD_INSTALL_CDEV opt_kbd.h
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KBD_MAXRETRY opt_kbd.h
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KBD_MAXWAIT opt_kbd.h
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KBD_RESETDELAY opt_kbd.h
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KBDIO_DEBUG opt_kbd.h
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EISA_SLOTS opt_eisa.h
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# pcvt(4) has a bunch of options
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FAT_CURSOR opt_pcvt.h
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XSERVER opt_pcvt.h
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PCVT_24LINESDEF opt_pcvt.h
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PCVT_CTRL_ALT_DEL opt_pcvt.h
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PCVT_META_ESC opt_pcvt.h
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PCVT_NSCREENS opt_pcvt.h
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PCVT_PRETTYSCRNS opt_pcvt.h
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PCVT_SCANSET opt_pcvt.h
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PCVT_SCREENSAVER opt_pcvt.h
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PCVT_USEKBDSEC opt_pcvt.h
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PCVT_VT220KEYB opt_pcvt.h
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PCVT_GREENSAVER opt_pcvt.h
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# Video spigot
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SPIGOT_UNSECURE opt_spigot.h
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# -------------------------------
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# isdn4bsd: passive ISA cards
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# -------------------------------
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TEL_S0_8 opt_i4b.h
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TEL_S0_16 opt_i4b.h
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TEL_S0_16_3 opt_i4b.h
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AVM_A1 opt_i4b.h
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USR_STI opt_i4b.h
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ITKIX1 opt_i4b.h
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ELSA_PCC16 opt_i4b.h
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# -------------------------------
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# isdn4bsd: passive ISA PnP cards
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# -------------------------------
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CRTX_S0_P opt_i4b.h
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DRN_NGO opt_i4b.h
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TEL_S0_16_3_P opt_i4b.h
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SEDLBAUER opt_i4b.h
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DYNALINK opt_i4b.h
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ASUSCOM_IPAC opt_i4b.h
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ELSA_QS1ISA opt_i4b.h
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SIEMENS_ISURF2 opt_i4b.h
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EICON_DIVA opt_i4b.h
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COMPAQ_M610 opt_i4b.h
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# -------------------------------
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# isdn4bsd: passive PCI cards
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# -------------------------------
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ELSA_QS1PCI opt_i4b.h
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# -------------------------------
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# isdn4bsd: misc options
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# -------------------------------
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# temporary workaround for SMP machines
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I4B_SMP_WORKAROUND opt_i4b.h
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# enable VJ compression code for ipr i/f
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IPR_VJ opt_i4b.h
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IPR_LOG opt_i4b.h
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# Total number of ports controlled by the dgb(4) driver.
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# Defaults to NDGB*16.
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NDGBPORTS opt_dgb.h
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# Device options
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DEV_NPX opt_npx.h
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DEV_SPLASH opt_splash.h
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# SMB/CIFS requester
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NETSMB opt_netsmb.h
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NETSMBCRYPTO opt_netsmb.h
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# SMB/CIFS filesystem
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SMBFS
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# -------------------------------
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# EOF
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# -------------------------------
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