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path: root/src/cpu/intel/common/hyperthreading.c
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2022-11-08cpu: Include <cpu/cpu.h> instead of <arch/cpu.h>Elyes Haouas
Also sort includes. Change-Id: Ia4a3807e45777e2a596878fe09e3c80b1fd2704d Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69037 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2021-10-18cpu/intel/hyperthreading: Use initial LAPIC IDsKyösti Mälkki
For older CPU models where CPUID leaf 0xb is not supported, use initial LAPIC ID from CPUID instead of LAPIC register space to to detect if logical CPU is a hyperthreading sibling. The one in LAPIC space is more complex to read, and might not reflect CPU topology as it can be modified in XAPIC mode. Change-Id: I8c458824db1ea66948126622a3e0d0604e391e4b Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58385 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2021-10-18cpu/intel/hyperthreading: Use cpuid_get_max_func()Kyösti Mälkki
Change-Id: I4b69b1d20b5a768c269d85f0ea23f79e02391a71 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58384 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2021-10-18cpu/intel/hyperthreading: Use CPUID leaf 0xb without X2APICKyösti Mälkki
It is not a requirement to have X2APIC mode enabled to use CPUID leaf 0xb EDX to detect logical CPU is a hyperthreading sibling. Change-Id: I288f2df5a392c396f92bb6d18908df35de55915d Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58383 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2021-04-15cpu/intel/common: use lapicid apiWonkyu Kim
Use lapicid api to support both x2apic mode and apic mode BUG=None BRANCH=None TEST=boot to OS and check apic mode cat /proc/cpuinfo | grep "apicid" Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com> Change-Id: I5ca5b09ae67941adcc07dfafdfe4ba78b0f81009 Reviewed-on: https://review.coreboot.org/c/coreboot/+/51725 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-06cpu/intel/common: Add `intel_ht_supported` functionAngel Pons
Change-Id: I90c0378c4042dec39c8c86c1d2339a5cbcfe78e3 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44210 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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>
2020-04-04src/cpu: 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: I2adf28d805fe248d55a9514f74c38280c0ad9a78 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40049 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-10-01cpu/intel/common: Move intel_ht_sibling() to common folderPatrick Rudolph
Make intel_ht_sibling() available on all platforms. Will be used in MP init to only write "Core" MSRs from one thread on HyperThreading enabled platforms, to prevent race conditions and resulting #GP if MSRs are written twice or are already locked. Change-Id: I5d000b34ba4c6536dc866fbaf106b78e905e3e35 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35619 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>