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2020-10-13soc/intel/common: rewrite and clarify the Legacy 8254 Timer KconfigMichael Niewöhner
The current Kconfig help text is confusing because it talks about enabling the Kconfig for disabling a UPD for disabling power gating. Rewrite and clarify the help text. Change-Id: I9637c549db1ce29f259708f316852fc2ae9e7c38 Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46302 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-06soc/intel/common: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: Ic5a920bfe1059534566ceab85a97219dd56f069e Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40213 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-03-18soc: Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I4c110f60b764c97fab2a29f6f04680196f156da5 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39610 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2019-10-28arch/x86: Move max cpuid leaf function into arch/x86Andrey Petrov
This cpuid function (0) is same across Intel and AMD so having it in arch/x86 seems like a good idea. Change-Id: I38f1c40bceac38ed6428f74b08bf60b971644f5a Signed-off-by: Andrey Petrov <anpetrov@fb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36282 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2019-10-28src: Remove unused '#include <cpu/cpu.h>'Elyes HAOUAS
Change-Id: Ibcb1cafe36c255b4c5bd0a4faeedb95e91048709 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36372 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2019-09-03soc/intel/common/timer: Fix cosmetic errors as per CB:35148 reviewSubrata Banik
BUG=b:139798422, b:129839774 TEST=Able to build and boot KBL/CML/ICL. Change-Id: I341eec13d275504545511904db0acd23ad34e940 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35234 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: V Sowmya <v.sowmya@intel.com> Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-02soc/intel/common/timer: Make TSC frequency calculation dynamicallySubrata Banik
tsc_freq_mhz() had a static table of Intel CPU families and crystal clock, but it is possible to calculate the crystal clock speed dynamically, and this is preferred over hardcoded table. On SKL/KBL/CML CPUID.15h.ecx = nominal core crystal clock = 0 Hz hence we had to use static table to calculate crystal clock. Recommendation is to make use of CPUID.16h where crystal clock frequency was not reported by CPUID.15h to calculate the crystal clock. BUG=b:139798422, b:129839774 TEST=Able to build and boot KBL/CML/ICL. Change-Id: If660a4b8d12e54b39252bce62bcc0ffcc967f5da Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35148 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: V Sowmya <v.sowmya@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-07-11soc/intel/common/timer: Move USE_LEGACY_8254_TIMER into common/block/timerSubrata Banik
This patch moves USE_LEGACY_8254_TIMER Kconfig into common/block/timer for better code sharing. Also ported CB:33512 for SPT and ICP PCH. Change-Id: Ic767ff97aaa3eb7fa35ffa38fa416d006eaa6e78 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34132 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2019-04-17soc/intel/common/timer: Calculate TSC frequency based on CPUID 0x15Subrata Banik
This patch ensures to follow Intel SDM Vol 3B Sec 18.7.3 to calculate nominal TSC frequency. As per SDM recommendation: For any processor in which CPUID.15H is enumerated and MSR_PLATFORM_INFO[15:8] (which gives the scalable bus frequency) is available, a more accurate frequency can be obtained by using CPUID.15H This patch also adds header file to capture Intel processor model number. BUG=b:129839774 TEST=Boot ICL platform and calculate TSC frequency using below methods 1. TSC freq calculated based on MSR 0xCE tsc: Detected 1600.000 MHz processor 2. TSC freq calculated based on CPUID 0x15 tsc: Detected 1612.800 MHz TSC Method 2 actually reduce ~25ms of boot performance time. Note: Method 2 is recommended from gen 6 processor onwards. Change-Id: I9ff4b9159a94e61b7e634bd6095f7cc6d7df87c7 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32283 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
2017-06-05soc/intel/common: Add common Intel timer codeAamir Bohra
Add common timer code to get tsc frequency(Mhz). Change-Id: Ifd4b24735c74c636348fc32afbcc267e384cb610 Signed-off-by: Aamir Bohra <aamir.bohra@intel.com> Reviewed-on: https://review.coreboot.org/19911 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>