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e8ce55117b
freebsd-dev/sys/i386/include
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John Baldwin e8ce55117b Use the local APIC timer to drive the various kernel clocks on SMP machines 
rather than forwarding interrupts from the clock devices around using IPIs:
- Add an IDT vector that pushes a clock frame and calls
  lapic_handle_timer().
- Add functions to program the local APIC timer including setting the
  divisor, and setting up the timer to either down a periodic countdown
  or one-shot countdown.
- Add a lapic_setup_clock() function that the BSP calls from
  cpu_init_clocks() to setup the local APIC timer if it is going to be
  used.  The setup uses a one-shot countdown to calibrate the timer.  We
  then program the timer on each CPU to fire at a frequency of hz * 3.
  stathz is defined as freq / 23 (hz * 3 / 23), and profhz is defined as
  freq / 2 (hz * 3 / 2).  This gives the clocks relatively prime divisors
  while keeping a low LCM for the frequency of the clock interrupts.
  Thanks to Peter Jeremy for suggesting this approach.
- Remove the hardclock and statclock forwarding code including the two
  associated IPIs.  The bitmap IPI handler has now effectively degenerated
  to just IPI_AST.
- When the local APIC timer is used we don't turn the RTC on at all, but
  we still enable interrupts on the ISA timer 0 (i8254) for timecounting
  purposes.
2005-02-08 20:25:07 +00:00
..
pc These appear to be unused in our tree, so remove them. 2005-01-05 20:50:31 +00:00
_inttypes.h
_limits.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
_stdint.h <stdint.h> should define WINT_M{AX,IN} independent from whether WCHAR_MIN is 2004-05-18 16:04:57 +00:00
_types.h Introduce the cpumask_t type. The purpose of the type is to create a 2004-03-20 20:41:40 +00:00
acpica_machdep.h Move the code for halting the CPU (acpi_cpu_c1) into machdep files. 2004-10-11 05:39:15 +00:00
apicreg.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
apicvar.h Use the local APIC timer to drive the various kernel clocks on SMP machines 2005-02-08 20:25:07 +00:00
apm_bios.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
apm_segments.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
asm.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
asmacros.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
atomic.h Initiate deorbit burn sequence for 80386 support in FreeBSD: Remove 2004-11-16 20:42:32 +00:00
bootinfo.h
bus_at386.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
bus_dma.h Introduce bus_dmamap_load_mbuf_sg(). Instead of taking a callback arg, this 2005-01-07 07:57:18 +00:00
bus_memio.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
bus_pc98.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
bus_pio.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
bus.h
clock.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
cpu.h Initiate deorbit burn sequence for 80386 support in FreeBSD: Remove 2004-11-16 20:42:32 +00:00
cpufunc.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
cputypes.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
critical.h Pass a thread argument into cpu_critical_{enter,exit}() rather than 2004-07-27 16:41:01 +00:00
cserial.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
db_machdep.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
elan_mmcr.h Expand indirect reference to BSD license with the current one. 2005-01-06 22:05:28 +00:00
elf.h Add definitions for TLS relocations. 2004-08-02 19:12:17 +00:00
endian.h Initiate deorbit burn sequence for 80386 support in FreeBSD: Remove 2004-11-16 20:42:32 +00:00
exec.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
float.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
floatingpoint.h
frame.h Update for the KDB framework: 2004-07-10 22:11:14 +00:00
gdb_machdep.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
i4b_cause.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
i4b_debug.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
i4b_ioctl.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
i4b_rbch_ioctl.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
i4b_tel_ioctl.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
i4b_trace.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
ieeefp.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
if_wl_wavelan.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
in_cksum.h Fix a bug in in_cksum_hdr w/o -O. 2004-08-25 18:28:15 +00:00
intr_machdep.h Tweak the ELCR support slightly. Explicitly probe the ELCR during boot 2005-01-18 20:24:47 +00:00
ioctl_bt848.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
ioctl_meteor.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
iodev.h Break out the MI part of the /dev/[k]mem and /dev/io drivers into 2004-08-01 11:40:54 +00:00
kdb.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
legacyvar.h Make the legacy_pcib_attach() function static. 2004-05-03 14:49:43 +00:00
limits.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
md_var.h Remove atdevbase and replace it's remaining uses with direct references to 2004-06-10 20:31:00 +00:00
memdev.h Break out the MI part of the /dev/[k]mem and /dev/io drivers into 2004-08-01 11:40:54 +00:00
metadata.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
mp_watchdog.h Add an "options MP_WATCHDOG" to i386. This option allows one of the 2004-08-15 18:02:09 +00:00
mptable.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
mutex.h
npx.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
param.h Remove UAREA_PAGES. 2004-11-20 02:29:50 +00:00
pcaudioio.h
pcb_ext.h
pcb.h Implement makectx(). The makectx() function is used by KDB to create 2004-07-10 19:56:00 +00:00
pci_cfgreg.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
pcpu.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
pcvt_ioctl.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
pecoff_machdep.h
perfmon.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
pmap.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
privatespace.h
proc.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
profile.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
psl.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
ptrace.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
reg.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
reloc.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
resource.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
runq.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
segments.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
setjmp.h
sf_buf.h
sigframe.h
signal.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
smapi.h
smp.h Use the local APIC timer to drive the various kernel clocks on SMP machines 2005-02-08 20:25:07 +00:00
smptests.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
speaker.h
specialreg.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
stdarg.h These are changes to allow to use the Intel C/C++ compiler (lang/icc) 2004-03-12 21:45:33 +00:00
sysarch.h o Move copyin()/copyout() out of i386_{get,set}_ldt() and 2005-01-26 13:59:46 +00:00
trap.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
tss.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
ucontext.h
varargs.h Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
vm86.h
vmparam.h Increase the scaling of VM_KMEM_SIZE_MAX. 2004-08-16 08:35:22 +00:00