From 1eb37070b03e3dd96c68aa282d203a7cf065f211 Mon Sep 17 00:00:00 2001
From: Luis Gerhorst <luis.gerhorst@fau.de>
Date: Tue, 10 Jul 2018 16:43:01 +0200
Subject: [PATCH] Introduce Timestamp Type Bernhard
---
arch/arm/measuremore/Kconfig | 4 ++++
arch/arm/measuremore/measure.c | 12 ++++++++++++
include/linux/measuremore.h | 17 +++++++++++++++++
3 files changed, 33 insertions(+)
diff --git a/arch/arm/measuremore/Kconfig b/arch/arm/measuremore/Kconfig
index f96895f..8c18e9e 100644
--- a/arch/arm/measuremore/Kconfig
+++ b/arch/arm/measuremore/Kconfig
@@ -7,6 +7,10 @@ config MEASUREMORE_TIMESTAMP_TYPE_PMCCNTR
depends on MEASUREMORE && ARM
bool "Read PMCCNTR register"
+config MEASUREMORE_TIMESTAMP_TYPE_BERNHARD
+ depends on MEASUREMORE
+ bool "Read bernhards register"
+
config MEASUREMORE_TIMESTAMP_TYPE_KTIME_MONO_FAST
depends on MEASUREMORE
bool "Call ktime_get_mono_fast_ns()"
diff --git a/arch/arm/measuremore/measure.c b/arch/arm/measuremore/measure.c
index f8d79c3..6ee9bca 100644
--- a/arch/arm/measuremore/measure.c
+++ b/arch/arm/measuremore/measure.c
@@ -233,6 +233,14 @@ static void seq_write_nstimeofday_s_csv_field(struct seq_file *seq,
}
#endif
+#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_BERNHARD
+static void seq_write_bernhard_csv_field(struct seq_file *seq,
+ struct checkpoint_record *cpr)
+{
+ seq_printf(seq, "%llu", cpr->bernhard);
+}
+#endif
+
static void seq_write_name_csv_field(struct seq_file *seq,
struct checkpoint_record *cpr)
{
@@ -248,6 +256,10 @@ static void export_current_bmr_to_csv_results(void)
create_csv_file("pmccntr", seq_write_pmccntr_csv_field,
csv_results_folder);
#endif
+#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_BERNHARD
+ create_csv_file("bernhard", seq_write_bernhard_csv_field,
+ csv_results_folder);
+#endif
#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_KTIME_MONO_FAST
create_csv_file("ktime_mono_fast", seq_write_ktime_mono_fast_csv_field,
csv_results_folder);
diff --git a/include/linux/measuremore.h b/include/linux/measuremore.h
index 18f2a12..3ca7065 100644
--- a/include/linux/measuremore.h
+++ b/include/linux/measuremore.h
@@ -19,11 +19,25 @@ struct pmccntr_timestamp {
#endif /* CONFIG_MEASUREMORE_TIMESTAMP_TYPE_PMCCNTR */
+#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_BERNHARD
+
+/* Hier den Code zum auslesen. Wenn du davor noch was einschalten musst / den
+ * Counter am Anfang jedes Runs resetten willst kannst du das analog zu
+ * pmccntr_reset() / pmccntr_enable() machen (im measuremore Verzeichnis). */
+
+#define bernhard_read(var) \
+ do { var = 42; } while (0)
+
+#endif /* CONFIG_MEASUREMORE_TIMESTAMP_TYPE_BERNHARD */
+
struct checkpoint_record {
const char *name;
#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_PMCCNTR
struct pmccntr_timestamp pmccntr_ts;
#endif
+#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_BERNHARD
+ uint64_t bernhard;
+#endif
#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_KTIME_MONO_FAST
u64 ktime_mono_fast; /* Alread in ns. */
#endif
@@ -51,6 +65,9 @@ static __always_inline void memo_checkpoint(const char *name) {
#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_PMCCNTR
pmccntr_read(current_cpr->pmccntr_ts.value);
#endif
+#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_BERNHARD
+ bernhard_read(current_cpr->bernhard);
+#endif
#ifdef CONFIG_MEASUREMORE_TIMESTAMP_TYPE_KTIME_MONO_FAST
current_cpr->ktime_mono_fast = ktime_get_mono_fast_ns();
#endif
--
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