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authorStefan Reinauer <reinauer@chromium.org>2013-08-01 13:31:44 -0700
committerKyösti Mälkki <kyosti.malkki@gmail.com>2015-01-05 22:21:49 +0100
commit3a6550d989460f9449136814a8b1f6b051a6382d (patch)
treed60bdfd55ddcc5e45042c987d5216d9212784f60 /src/arch/arm/armv7
parent83405a1241f4b8f516f687bd00f8ea981f7c7d87 (diff)
downloadcoreboot-3a6550d989460f9449136814a8b1f6b051a6382d.tar.xz
timestamps: Switch from tsc_t to uint64_t
Cherry-pick from chromium and adjusted for added boards and changed directory layout for arch/arm. Timestamp implementation for ARMv7 Abstract the use of rdtsc() and make the timestamps uint64_t in the generic code. The ARM implementation uses the monotonic timer. Original-Signed-off-by: Stefan Reinauer <reinauer@google.com> BRANCH=none BUG=chrome-os-partner:18637 TEST=See cbmem print timestamps Original-Change-Id: Id377ba570094c44e6895ae75f8d6578c8865ea62 Original-Reviewed-on: https://gerrit.chromium.org/gerrit/63793 (cherry-picked from commit cc1a75e059020a39146e25b9198b0d58aa03924c) Change-Id: Ic51fb78ddd05ba81906d9c3b35043fa14fbbed75 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/8020 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Diffstat (limited to 'src/arch/arm/armv7')
-rw-r--r--src/arch/arm/armv7/Makefile.inc2
-rw-r--r--src/arch/arm/armv7/timestamp.c29
2 files changed, 31 insertions, 0 deletions
diff --git a/src/arch/arm/armv7/Makefile.inc b/src/arch/arm/armv7/Makefile.inc
index 62d5434888..7e67178aa8 100644
--- a/src/arch/arm/armv7/Makefile.inc
+++ b/src/arch/arm/armv7/Makefile.inc
@@ -57,6 +57,7 @@ romstage-y += cpu.S
romstage-y += exception.c
romstage-y += exception_asm.S
romstage-y += mmu.c
+romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
romstage-c-ccopts += $(armv7_flags)
romstage-S-ccopts += $(armv7_asm_flags)
@@ -74,6 +75,7 @@ ramstage-y += cpu.S
ramstage-y += exception.c
ramstage-y += exception_asm.S
ramstage-y += mmu.c
+ramstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
ramstage-c-ccopts += $(armv7_flags)
ramstage-S-ccopts += $(armv7_asm_flags)
diff --git a/src/arch/arm/armv7/timestamp.c b/src/arch/arm/armv7/timestamp.c
new file mode 100644
index 0000000000..07a209c6cd
--- /dev/null
+++ b/src/arch/arm/armv7/timestamp.c
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#include <timestamp.h>
+#include <timer.h>
+
+uint64_t timestamp_get(void)
+{
+ struct mono_time timestamp;
+ timer_monotonic_get(&timestamp);
+ return (uint64_t)timestamp.microseconds;
+}
+