Revert "Move xen patchset to new version's subdir."

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.fixes / x86_cpufreq_powernow-k8_acpi_latency_values.patch

diff --git a/src/patches/suse-2.6.27.31/patches.fixes/x86_cpufreq_powernow-k8_acpi_latency_values.patch b/src/patches/suse-2.6.27.31/patches.fixes/x86_cpufreq_powernow-k8_acpi_latency_values.patch
deleted file mode 100644 (file)
index 78f2812..0000000
--- a/src/patches/suse-2.6.27.31/patches.fixes/x86_cpufreq_powernow-k8_acpi_latency_values.patch
+++ /dev/null
@@ -1,86 +0,0 @@
-From: Mark Langsdorf <mark.langsdorf@amd.com>
-Subject: X86 powernow-k8 cpufreq: Get transition latency from acpi _PSS object
-References: bnc#464461
-Patch-Mainline: not yet
-
-The ondemand kernel governor calculates the best sampling rate (how often
-to check for CPU load) from the CPU transition latency it gets from the
-low level cpufreq drivers. Powernow-k8 returned too high values resulting
-in poor performance.
-
-The transition latency returned from the ACPI _PSS object is also used by
-AMD's Windows PowerNow driver (thus should always be sane) and returns more
-exact values than the previous, algorithm to guess the transition latency.
-
-Signed-off-by: Thomas Renninger <trenn@suse.de>
-
----
- arch/x86/kernel/cpu/cpufreq/powernow-k8.c |   30 ++++++++++++++++++++++++------
- 1 file changed, 24 insertions(+), 6 deletions(-)
-
-Index: linux-2.6.27/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
-===================================================================
---- linux-2.6.27.orig/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
-+++ linux-2.6.27/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
-@@ -927,10 +927,23 @@ static void powernow_k8_cpu_exit_acpi(st
-               acpi_processor_unregister_performance(&data->acpi_data, data->cpu);
- }
- 
-+static int get_transition_latency(struct powernow_k8_data *data)
-+{
-+      int max_latency = 0;
-+      int i;
-+        for (i = 0; i < data->acpi_data.state_count; i++) {
-+              int cur_latency = data->acpi_data.states[i].transition_latency
-+                      + data->acpi_data.states[i].bus_master_latency;
-+              if (cur_latency > max_latency)
-+                      max_latency = cur_latency;
-+      }
-+      return max_latency;
-+}
- #else
- static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) { return -ENODEV; }
- static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data) { return; }
- static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index) { return; }
-+static int get_transition_latency(struct powernow_k8_data *data) { return 0; }
- #endif /* CONFIG_X86_POWERNOW_K8_ACPI */
- 
- /* Take a frequency, and issue the fid/vid transition command */
-@@ -1030,6 +1043,7 @@ static int powernowk8_target(struct cpuf
-       unsigned int newstate;
-       int ret = -EIO;
- 
-+
-       if (!data)
-               return -EINVAL;
- 
-@@ -1161,7 +1175,16 @@ static int __cpuinit powernowk8_cpu_init
-                       kfree(data);
-                       return -ENODEV;
-               }
--      }
-+              /* Take a crude guess here.
-+               * That guess was in microseconds, so multiply with 1000 */
-+              pol->cpuinfo.transition_latency = (
-+                      ( (data->rvo + 8) * data->vstable * VST_UNITS_20US) +
-+                      (  (1 << data->irt) * 30)
-+                      ) * 1000;
-+      }
-+      else /* ACPI _PSS objects available */
-+              pol->cpuinfo.transition_latency =
-+                      get_transition_latency(data) * 1000;
- 
-       /* only run on specific CPU from here on */
-       oldmask = current->cpus_allowed;
-@@ -1192,11 +1215,6 @@ static int __cpuinit powernowk8_cpu_init
-               pol->cpus = per_cpu(cpu_core_map, pol->cpu);
-       data->available_cores = &(pol->cpus);
- 
--      /* Take a crude guess here.
--       * That guess was in microseconds, so multiply with 1000 */
--      pol->cpuinfo.transition_latency = (((data->rvo + 8) * data->vstable * VST_UNITS_20US)
--          + (3 * (1 << data->irt) * 10)) * 1000;
--
-       if (cpu_family == CPU_HW_PSTATE)
-               pol->cur = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
-       else