From 3a6550d989460f9449136814a8b1f6b051a6382d Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Thu, 1 Aug 2013 13:31:44 -0700 Subject: timestamps: Switch from tsc_t to uint64_t MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 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 Reviewed-on: http://review.coreboot.org/8020 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones --- src/arch/arm/armv7/Makefile.inc | 2 ++ src/arch/arm/armv7/timestamp.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) create mode 100644 src/arch/arm/armv7/timestamp.c (limited to 'src/arch/arm') 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 +#include + +uint64_t timestamp_get(void) +{ + struct mono_time timestamp; + timer_monotonic_get(×tamp); + return (uint64_t)timestamp.microseconds; +} + -- cgit v1.2.3