freebsd-dev/sys/i386
Bruce Evans 17008f5343 Throw away the complications in npxsave() and their infrastructure.
npxsave() went to great lengths to excecute fnsave with interrupts
enabled in case executing it froze the CPU.  This case can't happen,
at least for Intel CPU/NPX's.  Spurious IRQ13's don't imply spurious
freezes.  Anyway, the complications were usually no-ops because IRQ13
is not used on i486's and newer CPUs, and because SMPng broke them in
rev.1.84.  Forcible enabling of interrupts was changed to
write_eflags(old_eflags), but since SMPng usually calls npxsave() from
cpu_switch() with interrupts disabled, write_eflags() usually just
kept interrupts disabled.
2001-05-20 20:04:40 +00:00
..
acpica FreeBSD-specific OSD (operating system dependant) modules for the Intel 2000-10-28 06:56:15 +00:00
apm Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
bios Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
conf Convert DEVFS from an "opt-in" to an "opt-out" option. 2001-05-13 20:52:40 +00:00
i386 Use a critical region to protect pushing of curproc's npx state to 2001-05-20 17:01:20 +00:00
ibcs2 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
include Make _BSD_TIME_T_ (time_t) an int' rather than long'. This will help 2001-05-18 01:43:25 +00:00
isa Throw away the complications in npxsave() and their infrastructure. 2001-05-20 20:04:40 +00:00
linux Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
pci Un-swap irq/link byte values so that printf works. 2001-05-11 04:52:29 +00:00
svr4 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
Makefile Update tags directive to reflect the new location of soft updates 2000-07-04 00:18:43 +00:00