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2013-05-14x86: add thread supportAaron Durbin
Thread support is added for the x86 architecture. Both the local apic and the tsc udelay() functions have a call to thread_yield_microseconds() so as to provide an opportunity to run pending threads. Change-Id: Ie39b9eb565eb189676c06645bdf2a8720fe0636a Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/3207 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-07x86: harden tsc udelay() functionAaron Durbin
Since the TSC udelay() function can be used in SMM that means the TSC can count up to whatever value. The current loop was not handling TSC rollover properly. In most cases this should not matter as the TSC typically starts ticking at value 0, and it would take a very long time to roll it over. However, it is my understanding that this behavior is not guaranteed. Theoretically the TSC could start or be be written to with a large value that would cause the rollover. Change-Id: I2f11a5bc4f27d5543e74f8224811fa91e4a55484 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/3171 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-05-07x86: add TSC_CONSTANT_RATE optionAaron Durbin
Some boards use the local apic for udelay(), but they also provide their own implementation of udelay() for SMM. The reason for using the local apic for udelay() in ramstage is to not have to pay the penalty of calibrating the TSC frequency. Therefore provide a TSC_CONSTANT_RATE option to indicate that TSC calibration is not needed. Instead rely on the presence of a tsc_freq_mhz() function provided by the cpu/board. Additionally, assume that if TSC_CONSTANT_RATE is selected the udelay() function in SMM will be the tsc. Change-Id: I1629c2fbe3431772b4e80495160584fb6f599e9e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/3168 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-01tsc: provide monotonic timerAaron Durbin
Implement the timer_monotonic_get() using the TSC. Change-Id: I5118da6fb9bccc75d2ce012317612e0ab20a2cac Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/3155 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2010-09-30Rename build system variables to be more intuitive, andPatrick Georgi
at the same time let the user specify sources instead of object files: - objs becomes ramstage-srcs - initobjs becomes romstage-srcs - driver becomes driver-srcs - smmobj becomes smm-srcs The user servicable parts are named accordingly: ramstage-y, romstage-y, driver-y, smm-y Also, the object file names are properly renamed now, using .ramstage.o, .romstage.o, .driver.o, .smm.o suffixes consistently. Remove stubbed out via/epia-m700 dsdt/ssdt files - they didn't easily fit in the build system and aren't useful anyway. Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Stefan Reinauer <stepan@coreystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5886 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-09Adapt comment, too. (trivial)Patrick Georgi
Noticed-by: Uwe Hermann Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5799 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-08Make timer2 the default choice for TSC initialization.Patrick Georgi
For boards where timer2 is unusable, there's still the IO based initialization available using the Kconfig option TSC_CALIBRATE_WITH_IO Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Kevin O'Connor <kevin@koconnor.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5787 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-072ms is enough time to accurately obtain the clock rate.Kevin O'Connor
Signed-off-by: Kevin O'Connor <kevin@koconnor.net> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5780 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-27Since some people disapprove of white space cleanups mixed in regular commitsStefan Reinauer
while others dislike them being extra commits, let's clean them up once and for all for the existing code. If it's ugly, let it only be ugly once :-) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-03-22printk_foo -> printk(BIOS_FOO, ...)Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5266 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-02-07newconfig is no more.Patrick Georgi
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5089 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-01-04- use LAPIC timer if selected (instead of TSC all the time) [kconfig]Patrick Georgi
- uncomment commented out intel socket [kconfig] - HAVE_MOVNTI is a property of the cpu [kconfig] Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4996 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-08-29This is the final set of changes to allow rumba to build. Rumba is notRonald G. Minnich
tested. I also addressed questions raised by Uwe: TSC_X86RDTSC_CALIBRATE_WITH_TIMER2 UDELAY_TSC Are now defined as booleans in src/cpu/x86/Kconfig and can be selected in the mainboard Kconfig. The remaining question of Uwe's is a deeper problem: --- We'll have to check if this works. From a quick glance the Rumba does not have the mmx related lines (which _are_ in Makefile.romccboard.inc, though): crt0-y += ../../../../src/cpu/x86/fpu/enable_fpu.inc crt0-y += ../../../../src/cpu/x86/mmx/enable_mmx.inc crt0-y += auto.inc crt0-y += ../../../../src/cpu/x86/mmx/disable_mmx.inc --- We're going to need a whole variant of this standard mainboard OR we're going to have to make (some) of the unconditional includes above conditional. Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4618 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-08-25Various Kconfig and Makefile.inc fixes and cosmetics.Uwe Hermann
- Whitespace fixes, remove trailing whitespace, use TABs for identation (except in Kconfig "help" lines, which start with one TAB and two spaces as per Linux kernel style) - Kconfig: Standardize on 'bool' (not 'boolean'). - s/lar/cbfs/ in one Kconfig help string. - Reword various Kconfig menu entries for a more usable and consistent menu. - Fix incorrect comment of NO_RUN in devices/Kconfig. - superio/serverengines/Kconfig: Incorrect config name. - superio/Makefile.inc: s/serverengine/serverengines/. - superio/intel/Kconfig: s/SUPERIO_FINTEK_I3100/SUPERIO_INTEL_I3100/. - mainboard/via/vt8454c/Kconfig: Fix copy-paste error in help string. - mainboard/via/epia-n/Kconfig: Fix "bool" menu text. - console/Kconfig: Don't mention defaults in the menu string, kconfig already displays them anyway. - Kill "Drivers" menu for now, it only confuses users as long as it's emtpy. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4567 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-08-12Kconfig!Patrick Georgi
Works on Kontron, qemu, and serengeti. Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> tested on abuild only. Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4534 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-07-21* rework tsc based timer code to use inb instead of outb for calibrationStefan Reinauer
* Add generic Local APIC based timer code. This timer does not need expensive calibration and thus reduces the boot time by up to more than a second. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4446 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-06-30This patch unifies the use of config options in v2 to all start with CONFIG_Stefan Reinauer
It's basically done with the following script and some manual fixup: VARS=`grep ^define src/config/Options.lb | cut -f2 -d\ | grep -v ^CONFIG | grep -v ^COREBOOT |grep -v ^CC` for VAR in $VARS; do find . -name .svn -prune -o -type f -exec perl -pi -e "s/(^|[^0-9a-zA-Z_]+)$VAR($|[^0-9a-zA-Z_]+)/\1CONFIG_$VAR\2/g" {} \; done Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4381 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-03-06fix a bunch of cast and type warnings and don't call the apic "nvram", thatStefan Reinauer
doesn't make no sense. (trivial) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3977 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-02-12This patch converts __FUNCTION__ to __func__, since __func__ is standard.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3943 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-10-23fix a whole bunch of warnings. (trivial)Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2890 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2005-10-25- See Issue Tracker id-6 "lnxi-patch-6-replacement"Jason Schildt
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2070 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2005-09-14Make EPIA-M use CONFIG_TSC.Jonathan McDowell
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2039 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2005-08-17Changed udelay in delay_tsc to be more be more considerate of singleHamish Guthrie
processor environments. git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2009 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-10-27sizeram removal/conversion.Eric Biederman
- mem.h and sizeram.h and all includes killed because the are no longer needed. - linuxbios_table.c updated to directly look at the device tree for occupied memory areas. - first very incomplete stab a converting the ppc code to work with the dynamic device tree - Ignore resources before we have read them from devices, (if the device is disabled ignore it's resources). - First stab at Pentium-M support - add part/init_timer.h making init_timer conditional until there is a better way of handling it. - Converted all of the x86 sizeram to northbridge set_resources functions. git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1722 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-10-14- Add new cvs code to cvsEric Biederman
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1657 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1