Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 20 insertions, 5 deletions

diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 98ce8124b1cc..281c72a3b9d5 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -44,6 +44,14 @@ struct devfreq_dev_status {
         void *private_data;
 };
 
+/*
+ * The resulting frequency should be at most this. (this bound is the
+ * least upper bound; thus, the resulting freq should be lower or same)
+ * If the flag is not set, the resulting frequency should be at most the
+ * bound (greatest lower bound)
+ */
+#define DEVFREQ_FLAG_LEAST_UPPER_BOUND          0x1
+
 /**
  * struct devfreq_dev_profile - Devfreq's user device profile
  * @initial_freq        The operating frequency when devfreq_add_device() is
@@ -54,6 +62,8 @@ struct devfreq_dev_status {
  *                      higher than any operable frequency, set maximum.
  *                      Before returning, target function should set
  *                      freq at the current frequency.
+ *                      The "flags" parameter's possible values are
+ *                      explained above with "DEVFREQ_FLAG_*" macros.
  * @get_dev_status      The device should provide the current performance
  *                      status to devfreq, which is used by governors.
  * @exit                An optional callback that is called when devfreq
@@ -66,7 +76,7 @@ struct devfreq_dev_profile {
         unsigned long initial_freq;
         unsigned int polling_ms;
 
-        int (*target)(struct device *dev, unsigned long *freq);
+        int (*target)(struct device *dev, unsigned long *freq, u32 flags);
         int (*get_dev_status)(struct device *dev,
                               struct devfreq_dev_status *stat);
         void (*exit)(struct device *dev);
@@ -124,6 +134,8 @@ struct devfreq_governor {
  *              touch this.
  * @being_removed       a flag to mark that this object is being removed in
  *                      order to prevent trying to remove the object multiple times.
+ * @min_freq    Limit minimum frequency requested by user (0: none)
+ * @max_freq    Limit maximum frequency requested by user (0: none)
  *
  * This structure stores the devfreq information for a give device.
  *
@@ -149,6 +161,9 @@ struct devfreq {
         void *data; /* private data for governors */
 
         bool being_removed;
+
+        unsigned long min_freq;
+        unsigned long max_freq;
 };
 
 #if defined(CONFIG_PM_DEVFREQ)
@@ -160,7 +175,7 @@ extern int devfreq_remove_device(struct devfreq *devfreq);
 
 /* Helper functions for devfreq user device driver with OPP. */
 extern struct opp *devfreq_recommended_opp(struct device *dev,
-                                           unsigned long *freq);
+                                           unsigned long *freq, u32 flags);
 extern int devfreq_register_opp_notifier(struct device *dev,
                                          struct devfreq *devfreq);
 extern int devfreq_unregister_opp_notifier(struct device *dev,
@@ -200,18 +215,18 @@ struct devfreq_simple_ondemand_data {
 static struct devfreq *devfreq_add_device(struct device *dev,
                                           struct devfreq_dev_profile *profile,
                                           struct devfreq_governor *governor,
-                                          void *data);
+                                          void *data)
 {
         return NULL;
 }
 
-static int devfreq_remove_device(struct devfreq *devfreq);
+static int devfreq_remove_device(struct devfreq *devfreq)
 {
         return 0;
 }
 
 static struct opp *devfreq_recommended_opp(struct device *dev,
-                                           unsigned long *freq)
+                                           unsigned long *freq, u32 flags)
 {
         return -EINVAL;
 }