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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 13:13:57 +08:00
linux-next/arch/x86_64
Ingo Molnar 95492e4646 [PATCH] x86: rewrite SMP TSC sync code
make the TSC synchronization code more robust, and unify it between x86_64 and
i386.

The biggest change is the removal of the 'fix up TSCs' code on x86_64 and
i386, in some rare cases it was /causing/ time-warps on SMP systems.

The new code only checks for TSC asynchronity - and if it can prove a
time-warp (if it can observe the TSC going backwards when going from one CPU
to another within a critical section), then the TSC clock-source is turned
off.

The TSC synchronization-checking code also got moved into a separate file.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16 08:13:57 -08:00
..
boot [PATCH] x86-64: shorten the x86_64 boot setup GDT to what the comment says 2006-11-14 16:57:46 +01:00
crypto [CRYPTO] api: Get rid of flags argument to setkey 2006-09-21 11:41:02 +10:00
ia32 Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-02-14 09:46:06 -08:00
kernel [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
lib [PATCH] x86-64: Add __copy_from_user_nocache 2007-02-13 13:26:19 +01:00
mm Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-02-14 09:46:06 -08:00
oprofile [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
pci [PATCH] mmconfig: fix unreachable_devices() 2007-02-13 13:26:20 +01:00
defconfig [PATCH] x86-64: Update defconfig 2007-02-13 13:26:19 +01:00
Kconfig [PATCH] x86-64: Kconfig typos 2007-02-13 13:26:23 +01:00
Kconfig.debug [PATCH] lockdep: irqtrace subsystem, x86_64 support 2006-07-03 15:27:03 -07:00
Makefile Remove stack unwinder for now 2006-12-15 08:47:51 -08:00