PM QoS: Move and rename the implementation files

The PM QoS implementation files are better named
kernel/power/qos.c and include/linux/pm_qos.h.

The PM QoS support is compiled under the CONFIG_PM option.

Signed-off-by: Jean Pihet <j-pihet@ti.com>
Acked-by: markgross <markgross@thegnar.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

1 files changed, 61 insertions, 0 deletions

diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
new file mode 100644
index 000000000000..7ba675413b08
--- /dev/null
+++ b/include/linux/pm_qos.h
@@ -0,0 +1,61 @@
+#ifndef _LINUX_PM_QOS_H
+#define _LINUX_PM_QOS_H
+/* interface for the pm_qos_power infrastructure of the linux kernel.
+ *
+ * Mark Gross <mgross@linux.intel.com>
+ */
+#include <linux/plist.h>
+#include <linux/notifier.h>
+#include <linux/miscdevice.h>
+
+#define PM_QOS_RESERVED 0
+#define PM_QOS_CPU_DMA_LATENCY 1
+#define PM_QOS_NETWORK_LATENCY 2
+#define PM_QOS_NETWORK_THROUGHPUT 3
+
+#define PM_QOS_NUM_CLASSES 4
+#define PM_QOS_DEFAULT_VALUE -1
+
+#define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE        (2000 * USEC_PER_SEC)
+#define PM_QOS_NETWORK_LAT_DEFAULT_VALUE        (2000 * USEC_PER_SEC)
+#define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0
+
+struct pm_qos_request_list {
+        struct plist_node list;
+        int pm_qos_class;
+};
+
+#ifdef CONFIG_PM
+void pm_qos_add_request(struct pm_qos_request_list *l,
+                        int pm_qos_class, s32 value);
+void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req,
+                           s32 new_value);
+void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req);
+
+int pm_qos_request(int pm_qos_class);
+int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier);
+int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
+int pm_qos_request_active(struct pm_qos_request_list *req);
+#else
+static inline void pm_qos_add_request(struct pm_qos_request_list *l,
+                                      int pm_qos_class, s32 value)
+                        { return; }
+static inline void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req,
+                                         s32 new_value)
+                        { return; }
+static inline void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req)
+                        { return; }
+
+static inline int pm_qos_request(int pm_qos_class)
+                        { return 0; }
+static inline int pm_qos_add_notifier(int pm_qos_class,
+                                      struct notifier_block *notifier)
+                        { return 0; }
+static inline int pm_qos_remove_notifier(int pm_qos_class,
+                                         struct notifier_block *notifier)
+                        { return 0; }
+static inline int pm_qos_request_active(struct pm_qos_request_list *req)
+                        { return 0; }
+#endif
+
+#endif