Jung-uk Kim 3453537fa5 Use atomic load & store for TSC frequency. It may be overkill for amd64 but ... safer for i386 because it can be easily over 4 GHz now. More worse, it can be easily changed by user with 'machdep.tsc_freq' tunable (directly) or cpufreq(4) (indirectly). Note it is intentionally not used in performance critical paths to avoid performance regression (but we should, in theory). Alternatively, we may add "virtual TSC" with lower frequency if maximum frequency overflows 32 bits (and ignore possible incoherency as we do now).		2011-04-07 23:28:28 +00:00
..
acpica	Remove unneeded includes of <sys/linker_set.h>. Other headers that use	2011-01-11 13:59:06 +00:00
bios
cpufreq	Use atomic load & store for TSC frequency. It may be overkill for amd64 but	2011-04-07 23:28:28 +00:00
include	Copy powerpc/include/_inttypes.h to x86 and replace i386/amd64/pc98	2011-01-08 18:09:48 +00:00
isa	Use atomic load & store for TSC frequency. It may be overkill for amd64 but	2011-04-07 23:28:28 +00:00
pci	Each processor socket in a QPI system has a special PCI bus for the	2010-09-07 13:50:02 +00:00
x86	Use atomic load & store for TSC frequency. It may be overkill for amd64 but	2011-04-07 23:28:28 +00:00