freebsd-dev/sys/i386
Scott Long 5ba0615c03 Optimize intr_execute_handlers() by combining the pic_disable_source() and
pic_eoi_source() into one call.  This halves the number of spinlock operations
and indirect function calls in the normal case of handling a normal (ithread)
interrupt.  Optimize the atpic and ioapic drivers to use inlines where
appropriate in supporting the intr_execute_handlers() change.

This knocks 900ns, or roughly 1350 cycles, off of the time spent servicing an
interrupt in the common case on my 1.5GHz P4 uniprocessor system.  SMP systems
likely won't see as much of a gain due to the ioapic being more efficient than
the atpic.  I'll investigate porting this to amd64 soon.

Reviewed by:	jhb
2004-08-02 15:31:10 +00:00
..
acpica Avoid casts as lvalues. While here, avoid storing 32bit quantities in 2004-07-28 06:32:28 +00:00
bios o Return ai_batteries as 0xffffffff instead of -1. This is a nop change, but 2004-06-16 20:27:50 +00:00
compile
conf Add the I/O device for those architectures that have it. 2004-08-01 19:37:34 +00:00
cpufreq o Typo: Ternal -> Thermal. 2004-02-29 18:30:35 +00:00
i386 Optimize intr_execute_handlers() by combining the pic_disable_source() and 2004-08-02 15:31:10 +00:00
ibcs2 Do a pass over all modules in the kernel and make them return EOPNOTSUPP 2004-07-15 08:26:07 +00:00
include Optimize intr_execute_handlers() by combining the pic_disable_source() and 2004-08-02 15:31:10 +00:00
isa Optimize intr_execute_handlers() by combining the pic_disable_source() and 2004-08-02 15:31:10 +00:00
linux Do a pass over all modules in the kernel and make them return EOPNOTSUPP 2004-07-15 08:26:07 +00:00
pci Consistently use __inline instead of __inline__ as the former is an empty macro 2004-07-04 16:11:03 +00:00
svr4 Attempt to make the proper changes here for the proc.h commit: 2004-01-05 00:29:00 +00:00
Makefile This commit adds basic support for the UFS2 filesystem. The UFS2 2002-06-21 06:18:05 +00:00