]> git.baikalelectronics.ru Git - kernel.git/commit
x86: remove explicit C3 TSC check on 64bit
authorAndi Kleen <ak@suse.de>
Wed, 30 Jan 2008 12:32:41 +0000 (13:32 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:32:41 +0000 (13:32 +0100)
commit126a16538c1f8a22776f78bcae3aff02e2fdcd3e
tree12803c3426871f487652b225358a2c0ed7492989
parentbe3ee61f6e60b37367180ae3743d015e19b4d7a9
x86: remove explicit C3 TSC check on 64bit

Trust the ACPI code to disable TSC instead when C3 is used.

AMD Fam10h does not disable TSC in any C states so the
check was incorrect there anyways after the change
to handle this like Intel on AMD too.

This allows to use the TSC when C3 is disabled in software
(acpi.max_c_state=2), but the BIOS supports it anyways.

Match i386 behaviour.

Cc: lenb@kernel.org
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/tsc_64.c