Move xen patchset to new version's subdir.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.drivers / cpufreq_add_cpu_number_paramater_1.patch

diff --git a/src/patches/suse-2.6.27.31/patches.drivers/cpufreq_add_cpu_number_paramater_1.patch b/src/patches/suse-2.6.27.31/patches.drivers/cpufreq_add_cpu_number_paramater_1.patch
new file mode 100644 (file)
index 0000000..0c76a0a
--- /dev/null
+++ b/src/patches/suse-2.6.27.31/patches.drivers/cpufreq_add_cpu_number_paramater_1.patch
@@ -0,0 +1,111 @@
+From: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+Subject: cpufreq: Add a cpu parameter to __cpufreq_driver_getavg().
+
+Add a cpu parameter to __cpufreq_driver_getavg(). This is needed for software
+cpufreq coordination where policy->cpu may not be same as the CPU on which we
+want to getavg frequency. 
+
+A follow-on patch will use this parameter to getavg freq from all cpus
+in policy->cpus.
+
+Change since last patch. Fix the offline/online and suspend/resume
+oops reported by Youquan Song <youquan.song@intel.com>
+
+Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+Signed-off-by: Thomas Renninger <trenn@suse.de>
+
+---
+ arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c |    5 +++--
+ drivers/cpufreq/cpufreq.c                  |    6 +++---
+ drivers/cpufreq/cpufreq_ondemand.c         |    2 +-
+ include/linux/cpufreq.h                    |    7 +++++--
+ 4 files changed, 12 insertions(+), 8 deletions(-)
+
+Index: cpufreq.git/drivers/cpufreq/cpufreq.c
+===================================================================
+--- cpufreq.git.orig/drivers/cpufreq/cpufreq.c 2008-08-04 10:28:26.000000000 -0700
++++ cpufreq.git/drivers/cpufreq/cpufreq.c      2008-08-04 10:31:27.000000000 -0700
+@@ -1485,7 +1485,7 @@ int cpufreq_driver_target(struct cpufreq
+ }
+ EXPORT_SYMBOL_GPL(cpufreq_driver_target);
+ 
+-int __cpufreq_driver_getavg(struct cpufreq_policy *policy)
++int __cpufreq_driver_getavg(struct cpufreq_policy *policy, unsigned int cpu)
+ {
+       int ret = 0;
+ 
+@@ -1493,8 +1493,8 @@ int __cpufreq_driver_getavg(struct cpufr
+       if (!policy)
+               return -EINVAL;
+ 
+-      if (cpu_online(policy->cpu) && cpufreq_driver->getavg)
+-              ret = cpufreq_driver->getavg(policy->cpu);
++      if (cpu_online(cpu) && cpufreq_driver->getavg)
++              ret = cpufreq_driver->getavg(policy, cpu);
+ 
+       cpufreq_cpu_put(policy);
+       return ret;
+Index: cpufreq.git/drivers/cpufreq/cpufreq_ondemand.c
+===================================================================
+--- cpufreq.git.orig/drivers/cpufreq/cpufreq_ondemand.c        2008-08-04 10:28:26.000000000 -0700
++++ cpufreq.git/drivers/cpufreq/cpufreq_ondemand.c     2008-08-04 10:31:27.000000000 -0700
+@@ -415,7 +415,7 @@ static void dbs_check_cpu(struct cpu_dbs
+       if (load < (dbs_tuners_ins.up_threshold - 10)) {
+               unsigned int freq_next, freq_cur;
+ 
+-              freq_cur = __cpufreq_driver_getavg(policy);
++              freq_cur = __cpufreq_driver_getavg(policy, policy->cpu);
+               if (!freq_cur)
+                       freq_cur = policy->cur;
+ 
+Index: cpufreq.git/include/linux/cpufreq.h
+===================================================================
+--- cpufreq.git.orig/include/linux/cpufreq.h   2008-08-04 10:28:26.000000000 -0700
++++ cpufreq.git/include/linux/cpufreq.h        2008-08-04 10:31:27.000000000 -0700
+@@ -187,7 +187,8 @@ extern int __cpufreq_driver_target(struc
+                                  unsigned int relation);
+ 
+ 
+-extern int __cpufreq_driver_getavg(struct cpufreq_policy *policy);
++extern int __cpufreq_driver_getavg(struct cpufreq_policy *policy,
++                                 unsigned int cpu);
+ 
+ int cpufreq_register_governor(struct cpufreq_governor *governor);
+ void cpufreq_unregister_governor(struct cpufreq_governor *governor);
+@@ -226,7 +227,9 @@ struct cpufreq_driver {
+       unsigned int    (*get)  (unsigned int cpu);
+ 
+       /* optional */
+-      unsigned int (*getavg)  (unsigned int cpu);
++      unsigned int (*getavg)  (struct cpufreq_policy *policy,
++                               unsigned int cpu);
++
+       int     (*exit)         (struct cpufreq_policy *policy);
+       int     (*suspend)      (struct cpufreq_policy *policy, pm_message_t pmsg);
+       int     (*resume)       (struct cpufreq_policy *policy);
+Index: cpufreq.git/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+===================================================================
+--- cpufreq.git.orig/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c        2008-08-04 10:28:26.000000000 -0700
++++ cpufreq.git/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c     2008-08-04 10:31:27.000000000 -0700
+@@ -256,7 +256,8 @@ static u32 get_cur_val(const cpumask_t *
+  * Only IA32_APERF/IA32_MPERF ratio is architecturally defined and
+  * no meaning should be associated with absolute values of these MSRs.
+  */
+-static unsigned int get_measured_perf(unsigned int cpu)
++static unsigned int get_measured_perf(struct cpufreq_policy *policy,
++                                    unsigned int cpu)
+ {
+       union {
+               struct {
+@@ -326,7 +327,7 @@ static unsigned int get_measured_perf(un
+ 
+ #endif
+ 
+-      retval = per_cpu(drv_data, cpu)->max_freq * perf_percent / 100;
++      retval = per_cpu(drv_data, policy->cpu)->max_freq * perf_percent / 100;
+ 
+       put_cpu();
+       set_cpus_allowed_ptr(current, &saved_mask);
+
+-- 
+