rpms/kernel/devel linux-2.6-cpufreq-enable-acpi-pstates-on-via.patch, NONE, 1.1 config-x86-generic, 1.79, 1.80 kernel.spec, 1.1561, 1.1562

[Chuck Ebbert]

Author: cebbert

Update of /cvs/pkgs/rpms/kernel/devel
In directory cvs1.fedora.phx.redhat.com:/tmp/cvs-serv3550

Modified Files:
	config-x86-generic kernel.spec 
Added Files:
	linux-2.6-cpufreq-enable-acpi-pstates-on-via.patch 
Log Message:
Add support for ACPI P-states on VIA processors.
Disable the e_powersaver driver.

linux-2.6-cpufreq-enable-acpi-pstates-on-via.patch:

--- NEW FILE linux-2.6-cpufreq-enable-acpi-pstates-on-via.patch ---
From: Harald Welte <laforge at gnumonks.org>
Date: Mon, 8 Jun 2009 10:19:16 +0000 (+0800)
Subject: CPUFREQ: Enable acpi-cpufreq driver for VIA/Centaur CPUs
X-Git-Url: http://git.gnumonks.org/cgi-bin/gitweb.cgi?p=linux-2.6-via.git;a=commitdiff_plain;h=03c869d3e851c585b30d0b1d115546406da2c692

CPUFREQ: Enable acpi-cpufreq driver for VIA/Centaur CPUs

The VIA/Centaur C7, C7-M and Nano CPU's all support ACPI based cpu p-states
using a MSR interface.  The Linux driver just never made use of it, since in
addition to the check for the EST flag it also checked if the vendor is Intel.

Signed-off-by: Harald Welte <HaraldWelte at viatech.com>
---

diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 54b6de2..36d4df2 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -90,7 +90,8 @@ static int check_est_cpu(unsigned int cpuid)
 {
 	struct cpuinfo_x86 *cpu = &cpu_data(cpuid);
 
-	if (cpu->x86_vendor != X86_VENDOR_INTEL ||
+	if ((cpu->x86_vendor != X86_VENDOR_INTEL &&
+	     cpu->x86_vendor != X86_VENDOR_CENTAUR) ||
 	    !cpu_has(cpu, X86_FEATURE_EST))
 		return 0;
 


Index: config-x86-generic
===================================================================
RCS file: /cvs/pkgs/rpms/kernel/devel/config-x86-generic,v
retrieving revision 1.79
retrieving revision 1.80
diff -u -p -r1.79 -r1.80
--- config-x86-generic	20 May 2009 16:43:16 -0000	1.79
+++ config-x86-generic	9 Jun 2009 06:07:14 -0000	1.80
@@ -202,7 +202,8 @@ CONFIG_X86_P4_CLOCKMOD=m
 CONFIG_X86_LONGRUN=y
 # CONFIG_X86_LONGHAUL is not set
 # CONFIG_X86_CPUFREQ_NFORCE2 is not set
-CONFIG_X86_E_POWERSAVER=y
+# e_powersaver is dangerous
+# CONFIG_X86_E_POWERSAVER is not set
 
 CONFIG_X86_SMP=y
 CONFIG_X86_HT=y


Index: kernel.spec
===================================================================
RCS file: /cvs/pkgs/rpms/kernel/devel/kernel.spec,v
retrieving revision 1.1561
retrieving revision 1.1562
diff -u -p -r1.1561 -r1.1562
--- kernel.spec	9 Jun 2009 05:53:06 -0000	1.1561
+++ kernel.spec	9 Jun 2009 06:07:14 -0000	1.1562
@@ -668,6 +668,9 @@ Patch3000: linux-2.6-btrfs-experimental-
 #snmp fixes
 Patch10000: linux-2.6-missing-rfc2465-stats.patch
 
+# VIA Nano / VX8xx updates
+Patch11000: linux-2.6-cpufreq-enable-acpi-pstates-on-via.patch
+
 %endif
 
 BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
@@ -1079,6 +1082,7 @@ ApplyPatch linux-2.6-missing-rfc2465-sta
 
 # Architecture patches
 # x86(-64)
+ApplyPatch linux-2.6-cpufreq-enable-acpi-pstates-on-via.patch
 
 #
 # PowerPC
@@ -1811,6 +1815,10 @@ fi
 #	                ||     ||
 %changelog
 * Tue Jun 09 2009 Chuck Ebbert <cebbert at redhat.com>
+- Add support for ACPI P-states on VIA processors.
+- Disable the e_powersaver driver.
+
+* Tue Jun 09 2009 Chuck Ebbert <cebbert at redhat.com>
 - Linux 2.6.30-rc8-git6
 
 * Fri Jun 05 2009 Chuck Ebbert <cebbert at redhat.com>