John Baldwin 688ebe120c - Close races with signals and other AST's being triggered while we are in ... the process of exiting the kernel. The ast() function now loops as long as the PS_ASTPENDING or PS_NEEDRESCHED flags are set. It returns with preemption disabled so that any further AST's that arrive via an interrupt will be delayed until the low-level MD code returns to user mode. - Use u_int's to store the tick counts for profiling purposes so that we do not need sched_lock just to read p_sticks. This also closes a problem where the call to addupc_task() could screw up the arithmetic due to non-atomic reads of p_sticks. - Axe need_proftick(), aston(), astoff(), astpending(), need_resched(), clear_resched(), and resched_wanted() in favor of direct bit operations on p_sflag. - Fix up locking with sched_lock some. In addupc_intr(), use sched_lock to ensure pr_addr and pr_ticks are updated atomically with setting PS_OWEUPC. In ast() we clear pr_ticks atomically with clearing PS_OWEUPC. We also do not grab the lock just to test a flag. - Simplify the handling of Giant in ast() slightly. Reviewed by: bde (mostly)		2001-08-10 22:53:32 +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	Make _BSD_TIME_T_ (time_t) an int' rather than long'. This will help	2001-05-18 01:43:25 +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
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
bus_at386.h	Fix "alignemnt" typo.	2001-06-16 15:28:28 +00:00
bus_dma.h	Fix "alignemnt" typo.	2001-06-16 15:28:28 +00:00
bus_memio.h
bus_pc98.h	Merged from sys/i386/include/bus_at386.h revision 1.14.	2001-06-26 11:36:45 +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
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
clock.h	Move DELAY() from <machine/clock.h> to <sys/systm.h>	2000-10-15 09:51:49 +00:00
comstats.h
cpu.h	- Close races with signals and other AST's being triggered while we are in	2001-08-10 22:53:32 +00:00
cpufunc.h	Provide access to the IA32 hardware debug registers from the ddb	2001-06-28 02:08:13 +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
db_machdep.h
dvcfg.h	Add $FreeBSD$	2000-05-01 20:32:07 +00:00
elf.h	Use a machine dependent type, Elf_Hashelt, for the elements of the elf	2001-07-31 03:46:39 +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
float.h
floatingpoint.h
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	Submitted by: Juha-Matti Liukkonen (Cubical Solutions Ltd) (jml@cubical.fi)	2001-05-25 08:43:30 +00:00
i4b_ioctl.h	update step.	2001-07-21 11:31:27 +00:00
i4b_isppp.h	update to i4b version 0.95.04	2000-10-09 13:18:17 +00:00
i4b_rbch_ioctl.h
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
if_wl_wavelan.h	Fix typo: compatability -> compatibility.	2001-02-06 12:05:58 +00:00
iic.h
in_cksum.h	These files are mpsafe.	2000-11-25 03:01:05 +00:00
ioctl_bt848.h	Fix typo in comments	2000-10-31 14:30:29 +00:00
ioctl_ctx.h
ioctl_meteor.h
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	Activate SSE/SIMD. This is the extra context switching support that	2001-07-12 06:32:51 +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	- Do not handle the per-CPU containers in mbuf code as though the cpuids	2001-07-26 18:47:46 +00:00
mtpr.h
mutex.h	Properly wrap mtx_intr_enable() macro in "do $bla while (0)"	2001-06-02 08:17:42 +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	Activate SSE/SIMD. This is the extra context switching support that	2001-07-12 06:32:51 +00:00
param.h	Fix CMSG and ALIGN macro usage.	2000-11-08 16:59:25 +00:00
pcaudioio.h
pcb_ext.h	- Use sched_lock and critical regions to ensure that LDT updates are thread	2001-05-10 17:03:03 +00:00
pcb.h	The #define for pcb_savefpu seems to do more harm than good.	2001-07-12 12:48:08 +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
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	Add a new MI pointer to the process' trapframe p_frame instead of using	2001-06-29 11:10:41 +00:00
profile.h	Fix MCOUNT_ENTER() so it actually compiles in the profiling case.	2001-07-14 21:40:53 +00:00
psl.h
ptrace.h	Zap 'ptrace(PT_READ_U, ...)' and 'ptrace(PT_WRITE_U, ...)' since they	2001-08-08 05:25:15 +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
resource.h
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
signal.h	Make MINSIGSTKSZ machine dependent, and have the sigaltstack	2000-11-09 08:25:48 +00:00
smb.h
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
specialreg.h	Activate SSE/SIMD. This is the extra context switching support that	2001-07-12 06:32:51 +00:00
spigot.h
stdarg.h
sysarch.h	Add a couple of debug register helper functions to assist in setting	2000-09-21 17:07:27 +00:00
trap.h	Activate SSE/SIMD. This is the extra context switching support that	2001-07-12 06:32:51 +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
varargs.h
vm86.h
vmparam.h	Make sysv-style shared memory tuneable params fully runtime adjustable	2000-03-30 07:17:05 +00:00
wtio.h