linux/arch/x86/kernel/acpi
Harald Welte d77b819745 [CPUFREQ] Enable ACPI PDC handshake for VIA/Centaur CPUs
In commit 0de51088e6, we introduced the
use of acpi-cpufreq on VIA/Centaur CPU's by removing a vendor check for
VENDOR_INTEL.  However, as it turns out, at least the Nano CPU's also
need the PDC (processor driver capabilities) handshake in order to
activate the methods required for acpi-cpufreq.

Since arch_acpi_processor_init_pdc() contains another vendor check for
Intel, the PDC is not initialized on VIA CPU's.  The resulting behavior
of a current mainline kernel on such systems is:  acpi-cpufreq
loads and it indicates CPU frequency changes.  However, the CPU stays at
a single frequency

This trivial patch ensures that init_intel_pdc() is called on Intel and
VIA/Centaur CPU's alike.

Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Dave Jones <davej@redhat.com>
2009-11-24 13:33:32 -05:00
..
realmode x86: Document linker script ASSERT() quirk 2009-10-16 07:18:46 +02:00
boot.c Merge branch 'for-ingo' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-sfi-2.6 into x86/apic 2009-08-29 09:31:47 +02:00
cstate.c ACPI: fix Compaq Evo N800c (Pentium 4m) boot hang regression 2009-09-27 03:43:42 -04:00
Makefile kbuild, suspend, x86: fix rebuild of wakeup.bin 2008-05-04 20:04:45 +02:00
processor.c [CPUFREQ] Enable ACPI PDC handshake for VIA/Centaur CPUs 2009-11-24 13:33:32 -05:00
sleep.c PM/ACPI/x86: Fix sparse warning in arch/x86/kernel/acpi/sleep.c 2009-06-12 21:32:29 +02:00
sleep.h x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
wakeup_32.S x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
wakeup_64.S Merge branches 'x86/acpi', 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/mm', 'x86/signal' and 'x86/urgent'; commit 'v2.6.29-rc6' into x86/core 2009-02-24 21:50:43 +01:00
wakeup_rm.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00