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6caa8a1501
freebsd-skq/sys/i386/include
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John Baldwin 6caa8a1501 Overhaul of the SMP code. Several portions of the SMP kernel support have 
been made machine independent and various other adjustments have been made
to support Alpha SMP.

- It splits the per-process portions of hardclock() and statclock() off
  into hardclock_process() and statclock_process() respectively.  hardclock()
  and statclock() call the *_process() functions for the current process so
  that UP systems will run as before.  For SMP systems, it is simply necessary
  to ensure that all other processors execute the *_process() functions when the
  main clock functions are triggered on one CPU by an interrupt.  For the alpha
  4100, clock interrupts are delievered in a staggered broadcast fashion, so
  we simply call hardclock/statclock on the boot CPU and call the *_process()
  functions on the secondaries.  For x86, we call statclock and hardclock as
  usual and then call forward_hardclock/statclock in the MD code to send an IPI
  to cause the AP's to execute forwared_hardclock/statclock which then call the
  *_process() functions.
- forward_signal() and forward_roundrobin() have been reworked to be MI and to
  involve less hackery.  Now the cpu doing the forward sets any flags, etc. and
  sends a very simple IPI_AST to the other cpu(s).  AST IPIs now just basically
  return so that they can execute ast() and don't bother with setting the
  astpending or needresched flags themselves.  This also removes the loop in
  forward_signal() as sched_lock closes the race condition that the loop worked
  around.
- need_resched(), resched_wanted() and clear_resched() have been changed to take
  a process to act on rather than assuming curproc so that they can be used to
  implement forward_roundrobin() as described above.
- Various other SMP variables have been moved to a MI subr_smp.c and a new
  header sys/smp.h declares MI SMP variables and API's.   The IPI API's from
  machine/ipl.h have moved to machine/smp.h which is included by sys/smp.h.
- The globaldata_register() and globaldata_find() functions as well as the
  SLIST of globaldata structures has become MI and moved into subr_smp.c.
  Also, the globaldata list is only available if SMP support is compiled in.

Reviewed by:	jake, peter
Looked over by:	eivind
2001-04-27 19:28:25 +00:00
..
pc Add PCI BIOS function codes for IRQ routing fetch and route. 2000-10-19 08:02:46 +00:00
_limits.h Our SHRT_MIN definition was actually 4 bits too big. 2000-11-04 21:01:44 +00:00
ansi.h Fixed disordering in previous commit. "Fixed" a null comment in previous 2001-02-17 03:57:38 +00:00
apic.h Remove constants defining the bitmasks of the old giant kernel lock. 2001-04-10 22:22:01 +00:00
apicreg.h Remove constants defining the bitmasks of the old giant kernel lock. 2001-04-10 22:22:01 +00:00
apm_bios.h Add output of per battery information to apm(1). 2000-08-13 17:05:27 +00:00
apm_segments.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
asc_ioctl.h Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
asm.h Fixed the profiling version ALTENTRY(). Again. The previous version 2000-01-25 09:01:55 +00:00
asmacros.h Always use the ELF naming after the demise of asnames.h. 2001-02-25 07:23:03 +00:00
atomic.h RIP <machine/lock.h>. 2001-02-11 10:44:09 +00:00
bootinfo.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
bus_at386.h version 1.7 made some changes to correct problems identifed by compiling 2001-03-02 05:33:53 +00:00
bus_dma.h version 1.7 made some changes to correct problems identifed by compiling 2001-03-02 05:33:53 +00:00
bus_memio.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
bus_pc98.h Merged from sys/i386/include/bus_at386.h revision 1.13. 2001-03-02 08:31:38 +00:00
bus_pio_ind.h Added indirect pio into the bus space stuff for the NEC PC-98. bus.h 2000-03-29 03:15:22 +00:00
bus_pio.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
bus.h Added indirect pio into the bus space stuff for the NEC PC-98. bus.h 2000-03-29 03:15:22 +00:00
cdk.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
clock.h Move DELAY() from <machine/clock.h> to <sys/systm.h> 2000-10-15 09:51:49 +00:00
comstats.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
cpu.h Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
cpufunc.h Back out 1.103. It wasn't approved by the owner of the file and 2001-04-18 20:57:43 +00:00
cputypes.h First shot at identifying the Pentum 4 acording to our reading of the 2000-09-29 04:38:35 +00:00
cronyx.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
db_machdep.h Fix style bug: order includes 1999-10-04 13:55:35 +00:00
dvcfg.h Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
elf.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
endian.h Back out wrapping the asm ... ; bits in #ifndef lint macros. There 2001-04-14 20:42:04 +00:00
exec.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
float.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
floatingpoint.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
frame.h Interrupt frames don't include the saved cpl anymore since cpl is dead. 2000-10-06 01:57:28 +00:00
globaldata.h Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
globals.h Implement optimized PCPU accessors. These are necessary to support a 2001-01-21 03:11:03 +00:00
gsc.h Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
i4b_cause.h update to i4b version 0.95.04 2000-10-09 13:18:17 +00:00
i4b_debug.h Add a debug flag bit for a new driver. 2000-10-18 08:39:24 +00:00
i4b_ioctl.h Add experimental support for Eicon.Diehl DIVA 2.0 and 2.02 ISA PnP cards. 2001-01-26 13:12:56 +00:00
i4b_isppp.h update to i4b version 0.95.04 2000-10-09 13:18:17 +00:00
i4b_rbch_ioctl.h update to isdn4bsd beta release 0.90 1999-12-14 20:54:38 +00:00
i4b_tel_ioctl.h update to i4b version 0.95.04 2000-10-09 13:18:17 +00:00
i4b_trace.h update to i4b version 0.95.04 2000-10-09 13:18:17 +00:00
ieeefp.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
if_wl_wavelan.h Fix typo: compatability -> compatibility. 2001-02-06 12:05:58 +00:00
iic.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
in_cksum.h These files are mpsafe. 2000-11-25 03:01:05 +00:00
intrcnt.h Export intrnames and intrcnt as sysctls (hw.nintr, hw.intrnames and 2001-03-23 03:45:17 +00:00
ioctl_bt848.h Fix typo in comments 2000-10-31 14:30:29 +00:00
ioctl_ctx.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
ioctl_fd.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
ioctl_meteor.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
ipl.h Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
legacyvar.h Get out the roto-rooter and clean up the abuse of nexus ivars by the 2000-09-28 00:37:32 +00:00
limits.h Our SHRT_MIN definition was actually 4 bits too big. 2000-11-04 21:01:44 +00:00
md_var.h Remove the last of the MD netisr code. It is now all MI. Remove 2000-12-05 00:36:00 +00:00
mpapic.h Remove the old APIC I/O higher level IPI API in favor of the newer MI 2001-04-10 22:18:21 +00:00
mptable.h Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
mtpr.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
mutex.h - Switch from using save/disable/restore_intr to using critical_enter/exit 2001-03-28 02:40:47 +00:00
nexusvar.h Get out the roto-rooter and clean up the abuse of nexus ivars by the 2000-09-28 00:37:32 +00:00
npx.h Declare or #define per-cpu globals in <machine/globals.h> in all cases. 2000-10-27 08:30:59 +00:00
param.h Fix CMSG and ALIGN macro usage. 2000-11-08 16:59:25 +00:00
pcaudioio.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
pcb_ext.h Activate USER_LDT by default. The new thread libraries are going to 2001-02-23 01:25:02 +00:00
pcb.h Activate USER_LDT by default. The new thread libraries are going to 2001-02-23 01:25:02 +00:00
pci_cfgreg.h Add types and prototypes. 2000-10-16 19:49:30 +00:00
pcpu.h Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
pcvt_ioctl.h Add support for "green" saver mode. 2000-03-31 08:29:21 +00:00
pecoff_machdep.h Add PECOFF (WIN32 Execution file format) support. 2000-12-20 12:51:08 +00:00
perfmon.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
physio_proc.h Use queue macros. 2001-01-24 00:01:42 +00:00
pmap.h Increase NKPT from 17 to 30. This fixes the 4GB ram boot panic on both 2000-11-30 01:53:02 +00:00
proc.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
profile.h Change and clean the mutex lock interface. 2001-02-09 06:11:45 +00:00
psl.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
ptrace.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
reg.h Add a couple of debug register helper functions to assist in setting 2000-09-21 17:07:27 +00:00
reloc.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
resource.h * Implement bus_set/get/delete_resource for pci. 1999-10-14 21:38:33 +00:00
segments.h Declare or #define per-cpu globals in <machine/globals.h> in all cases. 2000-10-27 08:30:59 +00:00
setjmp.h Work around a bug by adding struct tags. gcc-2.95 apparently gets the 2000-10-06 11:53:32 +00:00
sigframe.h Fix type of sf_addr. 1999-12-04 10:40:24 +00:00
signal.h Make MINSIGSTKSZ machine dependent, and have the sigaltstack 2000-11-09 08:25:48 +00:00
smb.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
smp.h Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
smptests.h Remove the BETTER_CLOCK #ifdef's. The code is on by default and is here 2001-04-10 21:34:13 +00:00
speaker.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
specialreg.h Add the CR4 values for P3 SIMD enabling support. FXSR tells the cpu that 1999-09-10 15:51:44 +00:00
spigot.h Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 04:46:21 +00:00
stdarg.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
sysarch.h Add a couple of debug register helper functions to assist in setting 2000-09-21 17:07:27 +00:00
trap.h Removed all traces of T_ASTFLT (except for gaps where it was). It became 2001-02-19 15:47:38 +00:00
tss.h Declare or #define per-cpu globals in <machine/globals.h> in all cases. 2000-10-27 08:30:59 +00:00
types.h - Add the new critical_t type used to save state inside of critical 2001-03-28 02:31:54 +00:00
uc_device.h Update sysinstall to use struct uc_device instead of struct isa_device 2000-03-24 22:24:09 +00:00
ucontext.h Add a per-signal flag to mark handlers registered with osigaction, so we 1999-10-11 20:33:17 +00:00
varargs.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
vm86.h Some reorganization of sysarch() interface: 1999-09-02 20:59:50 +00:00
vmparam.h Make sysv-style shared memory tuneable params fully runtime adjustable 2000-03-30 07:17:05 +00:00
wtio.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00