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timestamps: Switch from tsc_t to uint64_t

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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>
This commit is contained in:
Stefan Reinauer
2013-08-01 13:31:44 -07:00
committed by Kyösti Mälkki
parent 83405a1241
commit 3a6550d989
22 changed files with 137 additions and 124 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/arch/arm/armv7/Makefile.inc
View File

@@ -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)

29
src/arch/arm/armv7/timestamp.c Normal file
View File

@@ -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;
}