[COMMON] trace: ess: Snapshot for Exynos DVFS Manager

Change-Id: I0d487c1ef4e5ec28bbf2728d54391c3559f3e6d0
Signed-off-by: Eunok Jo <eunok25.jo@samsung.com>

diff --git a/drivers/soc/samsung/exynos-dm.c b/drivers/soc/samsung/exynos-dm.c
index 46d5986a4e6842e5872ab7213358bb95952176b8..1002cd0bbc5f409f0a634896eaccce877674c6c1 100644 (file)
--- a/drivers/soc/samsung/exynos-dm.c
+++ b/drivers/soc/samsung/exynos-dm.c
@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/of.h>
 #include <linux/slab.h>
+#include <linux/exynos-ss.h>
 
 #include <soc/samsung/exynos-dm.h>
 
@@ -601,8 +602,12 @@ static int scaling_callback(enum dvfs_direction dir, unsigned int relation);
 int policy_update_call_to_DM(enum exynos_dm_type dm_type, u32 min_freq, u32 max_freq)
 {
        struct exynos_dm_data *dm;
+       struct timeval pre, before, after;
+       s32 time = 0, pre_time = 0;
 
+       do_gettimeofday(&pre);
        mutex_lock(&exynos_dm->lock);
+       do_gettimeofday(&before);
 
        dm = &exynos_dm->dm_data[dm_type];
        update_policy_min_max_freq(dm, min_freq, max_freq);
@@ -611,8 +616,16 @@ int policy_update_call_to_DM(enum exynos_dm_type dm_type, u32 min_freq, u32 max_
        constraint_checker_min(get_min_constraint_list(dm), min_freq);
        constraint_checker_max(get_max_constraint_list(dm), max_freq);
 
+       do_gettimeofday(&after);
        mutex_unlock(&exynos_dm->lock);
 
+       pre_time = (before.tv_sec - pre.tv_sec) * USEC_PER_SEC +
+               (before.tv_usec - pre.tv_usec);
+       time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
+               (after.tv_usec - before.tv_usec);
+
+       exynos_ss_dm((int)dm_type, min_freq, max_freq, pre_time, time);
+
        return 0;
 }
 
@@ -671,8 +684,12 @@ int DM_CALL(enum exynos_dm_type dm_type, unsigned long *target_freq)
        int i;
        int ret;
        unsigned int relation = EXYNOS_DM_RELATION_L;
+       struct timeval pre, before, after;
+       s32 time = 0, pre_time = 0;
 
+       do_gettimeofday(&pre);
        mutex_lock(&exynos_dm->lock);
+       do_gettimeofday(&before);
 
        dm = &exynos_dm->dm_data[dm_type];
        dm->gov_min_freq = *target_freq;
@@ -705,8 +722,16 @@ int DM_CALL(enum exynos_dm_type dm_type, unsigned long *target_freq)
        else if (dm->target_freq < dm->cur_freq)
                scaling_callback(DOWN, relation);
 
+       do_gettimeofday(&after);
        mutex_unlock(&exynos_dm->lock);
 
+       pre_time = (before.tv_sec - pre.tv_sec) * USEC_PER_SEC +
+               (before.tv_usec - pre.tv_usec);
+       time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
+               (after.tv_usec - before.tv_usec);
+
+       exynos_ss_dm((int)dm_type, *target_freq, 0, pre_time, time);
+
        return 0;
 }