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2023-03-31soc/intel/alderlake: Enable 'struct cpu_info' update for ADLSridhar Siricilla
The patch enables addition of core_type member to 'struct cpu_info' for Alderlake platform. TEST=Build and verify the code for Gimble Change-Id: Ia065b98c2013e78328fd38bed9c667792d6d1f4d Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74089 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subratabanik@google.com>
2023-02-23soc/intel: Use common codeflow for MP initArthur Heymans
This fixes MP init on xeon_sp SoCs which was broken by 69cd729 (mb/*: Remove lapic from devicetree). Alderlake cpu code was linked in romstage but unused so drop it. Change-Id: Ia822468a6f15565b97e57612a294a0b80b45b932 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/72604 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Sean Rhodes <sean@starlabs.systems> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
2023-01-10soc/intel: Add Kconfigs to define scaling factor for coresSridhar Siricilla
The patch adds Kconfigs to define scaling factor for Efficient and Performance cores instead of using hard coded values in the soc code. Also, the patches uses the Kconfigs directly to calculate the core's nominal performance. So, we don't need to implement soc function soc_get_scaling_factor() to get the scaling factor data for different core types. Hence, soc_get_scaling_factor() function is removed. TEST=Build the code for Gimble and Rex. Also, I have verified that build system logs error when the Kconfigs are undefined. Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com> Change-Id: I55e4d815116ef40c5f33be64ab495e942bf35ee8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/71687 Reviewed-by: Subrata Banik <subratabanik@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-01-06soc/intel/: Rename small and big cores referencesSridhar Siricilla
The patch addresses Intel heterogeneous cores as `Efficient` and `Performance` cores instead of `small` and `big` cores. It is to ensure coreboot code has uniform reference to the heterogeneous cores. So, the patch renames all `small` and `big` core references to `efficient` (eff) and `performance` (perf) cores respectively. TEST=Build the code for Brya and Rex boards Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com> Change-Id: I98c9c0ed86b211d736a0a1738b47410faa13a39f Reviewed-on: https://review.coreboot.org/c/coreboot/+/71639 Reviewed-by: Kapil Porwal <kapilporwal@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-12-22soc/intel/alderlake: Add Raptor Lake device IDsMarx Wang
Add system agent ID for RPL QDF#Q2MB/Q2PS TEST=able to build coreboot successfully Signed-off-by: Marx Wang <marx.wang@intel.com> Change-Id: I169c8bc51cdf7fbfcdb1996d93afa4a352e2fddf Reviewed-on: https://review.coreboot.org/c/coreboot/+/71121 Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Tarun Tuli <taruntuli@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2022-10-25soc/intel/alderlake: Add Raptor Lake device IDsLawrence Chang
Add system agent ID for RPL QDF# Q271 TEST=Tested by ODM and "MCH: device id a71b (rev 01) is Unknown" msg is gone Signed-off-by: Lawrence Chang <lawrence.chang@intel.corp-partner.google.com> Change-Id: I6fd51d9915aa59d012c73abc2477531643655e54 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68565 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Kane Chen <kane.chen@intel.com> Reviewed-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2022-08-24soc/intel/adl: Consider INTEL_TME config prior TME MSR programmingSubrata Banik
This patch brings INTEL_TME config check prior programming TME Set Activation Core MSR on all cores. TEST=Able to boot Google/Taeko to OS. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I8af7e305da1050f443929ab33be556e713e53e9a Reviewed-on: https://review.coreboot.org/c/coreboot/+/66976 Reviewed-by: Tarun Tuli <taruntuli@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-08-22soc/intel/alderlake: Perform TME core activation on all CPUsSubrata Banik
This patch runs `set_tme_core_activate()` on all CPUs (BSP+APs) as per Alder Lake Processor EDS. TEST= Able to build and boot Google/Redrix. Dumping MSR 0x9FF on all logical processors shows zero value being set. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I130480d4fba413d47d0d0137932ec1fb041a88d8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/66753 Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Tarun Tuli <taruntuli@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-07-28soc/intel/alderlake: Set Energy Perf Bias appropriate default valueJeremy Compostella
The current "normal" EPB (six) setting resulted in the desired out of box power and performance for several CPU generations. However, a power and performance analysis on Alder Lake and Raptor Lake CPUs demonstrates that this value results in undesirable higher uncore power and that seven is a more appropriate value. Note: the Linux kernel "4ecc933b x86: intel_epb: Allow model specific normal EPB value" patch sets the EPB to 7 for Alder Lake. BRANCH=firmware-brya-14505.B BUG=b:239853069 TEST=verify that EPB is set by coreboot Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com> Change-Id: I5784656903d4c58bedc5063ee3ef310a99711050 Reviewed-on: https://review.coreboot.org/c/coreboot/+/66059 Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com> Reviewed-by: Cliff Huang <cliff.huang@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-07-28soc/intel/alderlake: Enable Energy/Performance Bias controlJeremy Compostella
According to document 619503 ADL EDS Vol2, bit 18 of MSR_POWER_CTL must be set to be able to set the Energy/Performance Bias using MSR IA32_ENERGY_PERF_BIAS. Note that since this bit was not set until this patch, the `set_energy_perf_bias(ENERGY_POLICY_NORMAL);' call in `soc_core_init()` was systematically failing. BRANCH=firmware-brya-14505.B BUG=b:239853069 TEST=verify that EPB is set by coreboot Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com> Change-Id: Ic24abdd7f63f4707b8996da4755a26be148efe4a Reviewed-on: https://review.coreboot.org/c/coreboot/+/66058 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-06-28soc/intel: Add Raptor Lake device IDszhixingma
Add Raptor Lake specific CPU, System Agent, PCH, IGD device IDs. References: RaptorLake External Design Specification Volume 1 (640555) 600/700 Series PCH External Design Specification Volume 1 (626817) BUG=b:229134437 BRANCH=firmware-brya-14505.B TEST=Booted to OS on adlrvp + rpl silicon Signed-off-by: Zhixing Ma <zhixing.ma@intel.com> Change-Id: I8e8b9ec6ae82de7d7aa2302097fc66f47b782323 Reviewed-on: https://review.coreboot.org/c/coreboot/+/65117 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-06-02soc/intel/common/cpu: Use SoC overrides to set CPU privilege levelSubrata Banik
This patch implements a SoC overrides to set CPU privilege level as the MSR is not consistent across platforms. For example: On APL/GLK/DNV, it's MSR 0x120 and CNL onwards it's MSR 0x151. BUG=b:233199592 TEST=Build and boot google/taeko to ChromeOS. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I4584516102560e6bb2a4ae8c0d036be40ed96990 Reviewed-on: https://review.coreboot.org/c/coreboot/+/64806 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
2022-05-16soc/intel: Add Raptor Lake device IDsBora Guvendik
Add Raptor Lake specific CPU, System Agent, PCH, IGD device IDs. References: RaptorLake External Design Specification Volume 1 (640555) 600/700 Series PCH External Design Specification Volume 1 (626817) Change-Id: I39e655dec2314a672ea63ba90d8bb3fc53bf77ba Signed-off-by: Bora Guvendik <bora.guvendik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63750 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Anil Kumar K <anil.kumar.k@intel.com>
2022-03-14soc/intel/alderlake: Add EPP override supportCliff Huang
This updates energy performance preference value to all logical CPUs when the corresponding chip config is true. BUG=b:219785001 BRANCH=firmware-brya-14505.B Signed-off-by: Cliff Huang <cliff.huang@intel.corp-partner.google.com> Change-Id: Ie59623fe715b0c545f8d4b6c22ab2ce670a29798 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62654 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-03-07src: Make PCI ID define names shorterFelix Singer
Shorten define names containing PCI_{DEVICE,VENDOR}_ID_ with PCI_{DID,VID}_ using the commands below, which also take care of some spacing issues. An additional clean up of pci_ids.h is done in CB:61531. Used commands: * find -type f -exec sed -i 's/PCI_\([DV]\)\(EVICE\|ENDOR\)_ID_\([_0-9A-Za-z]\{2\}\([_0-9A-Za-z]\{8\}\)*[_0-9A-Za-z]\{0,5\}\)\t/PCI_\1ID_\3\t\t/g' * find -type f -exec sed -i 's/PCI_\([DV]\)\(EVICE\|ENDOR\)_ID_\([_0-9A-Za-z]*\)/PCI_\1ID_\3/g' Change-Id: If9027700f53b6d0d3964c26a41a1f9b8f62be178 Signed-off-by: Felix Singer <felixsinger@posteo.net> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39331 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2022-02-05cpu/x86/lapic: Move LAPIC configuration to MP initKyösti Mälkki
Implementation for setup_lapic() did two things -- call enable_lapic() and virtual_wire_mode_init(). In PARALLEL_MP case enable_lapic() was redundant as it was already executed prior to initialize_cpu() call. For the !PARALLEL_MP case enable_lapic() is added to AP CPUs. Change-Id: I5caf94315776a499e9cf8f007251b61f51292dc5 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58387 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-01-28soc/intel/alderlake: Enable CPPCv3Sridahr Siricilla
The patch defines the following helper functions: get_cpu_scaling_factor(): Returns scaling factors of big and small core. cpu_is_nominal_freq_supported(): Returns true if CPU supports Nominal Frequency, otherwise false. cpu_is_nominal_freq_supported(): Check CPU supports nominal frequency or not. The patch also enables CPPCv3 support for Intel Alder Lake which is based on hybrid core architecture. TEST=Verified Nominal Frequency and Nominal Performance are getting updated for ADL-P small and big cores correctly. Signed-off-by: Sridahr Siricilla <sridhar.siricilla@intel.com> Change-Id: I963690a4fadad322095d202bcc08c92dcd845360 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59362 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-01-25soc/intel/common: Include Alder Lake-N device IDsUsha P
Add Alder Lake-N System Agent, PCIE, UFS, IPU and CNVI device IDs. Document: Alder Lake N Platform EDS Volume 1 (Doc# 645548) Signed-off-by: Usha P <usha.p@intel.com> Change-Id: I0a383816f818b794cf1211766c27937b3b8daa31 Reviewed-on: https://review.coreboot.org/c/coreboot/+/61161 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Kangheui Won <khwon@chromium.org>
2022-01-22soc/intel/alderlake: Implement get_soc_cpu_type helper functionSridhar Siricilla
The patch implements get_soc_cpu_type() helper function which determines whether the executing CPU is a small or a big core. This is the SoC-specific callback that must be implemented for SoCs that select SOC_INTEL_COMMON_BLOCK_ACPI_CPU_HYBRID. It will be called from set_cpu_type(). TEST=verified on Brya Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com> Change-Id: Icd0d7e8a42c4b20d3e1d34998bca6321509df2d8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/61075 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-01-19soc/intel/common/cpu: Use SoC overrides to get CPU privilege levelSubrata Banik
This patch implements a SoC overrides to check CPU privilege level as the MSR is not consistent across platforms. For example: On APL/GLK/DNV, it's MSR 0x120 and CNL onwards it's MSR 0x151. BUG=b:211573253, b:211950520 Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I515f0a3548bc5d6250e30f963d46f28f3c1b90b3 Reviewed-on: https://review.coreboot.org/c/coreboot/+/60900 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-01-18soc/intel/{adl,common}: Support alderlake host device id 0x4619Kane Chen
Host device id 0x4619 is missed in few coreboot tables so that coreboot can't recognize and config it properly. Document Number: 690222 BUG:b:214665785, b:214680767 Change-Id: I95908bdc0a736bafedb328dda2a00b5473de3d88 Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/61134 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subratabanik@google.com>
2021-12-13soc/intel/alderlake: Define soc_get_pcie_rp_typeTim Wawrzynczak
In order to distinguish PCH from CPU PCIe RPs, define the soc_get_pcie_rp_type function for Alder Lake. While we're here, add PCIe RP group definitions for PCH-M chipsets. BUG=b:197983574 Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I7438513e10b7cea8dac678b97a901b710247c188 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59854 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subrata.banik@intel.com>
2021-12-06soc/intel/alderlake: Add support for ADL-N CPU TypeUsha P
Add Alder Lake-N case for adl_cpu_type and get_supported_lpm_mask. Signed-off-by: Usha P <usha.p@intel.com> Change-Id: If2917ac356fd80f84bcaf70ed710d329e77f7a6d Reviewed-on: https://review.coreboot.org/c/coreboot/+/59836 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Kangheui Won <khwon@chromium.org>
2021-10-22cpu/x86/mp_init: move printing of failure message into mp_init_with_smmFelix Held
Each CPU/SoC checks the return value of the mp_init_with_smm and prints the same error message if it wasn't successful, so move this check and printk to mp_init_with_smm. For this the original mp_init_with_smm function gets renamed to do_mp_init_with_smm and a new mp_init_with_smm function is created which then calls do_mp_init_with_smm, prints the error if it didn't return CB_SUCCESS and passes the return value of do_mp_init_with_smm to its caller. Since no CPU/SoC code handles a mp_init_with_smm failure apart from printing a message, also add a comment at the mp_init_with_smm call sites that the code might want to handle a failure. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I181602723c204f3e43eb43302921adf7a88c81ed Reviewed-on: https://review.coreboot.org/c/coreboot/+/58498 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-10-21cpu/x86/mp_init: use cb_err as mp_init_with_smm return typeFelix Held
Using cb_err as return type clarifies the meaning of the different return values. This patch also adds the types.h include that provides the definition of the cb_err enum and checks the return value of mp_init_with_smm against the enum values instead of either checking if it's non-zero or less than zero to handle the error case. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ibcd4a9a63cc87fe176ba885ced0f00832587d492 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58491 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-10-12soc/intel/*/cpu.c: Add missing space in commentAngel Pons
Add a space before the `*/` C-style comment ending. Change-Id: Ic8928286c8237808b9e380e4393078792589615d Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58219 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2021-09-10soc/intel/alderlake: Set LpmStateEnableMask UPDTim Wawrzynczak
Use the get_supported_lpm_states() function to set the respective FSP UPD. TEST=with patchtrain on brya0, /sys/kernel/debug/pmc_core/substate_requirements shows only the substates that are applicable to the design (S0i2.0, S0i3.0). Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I5bb8b3671e78c5f2706db2d3a21b25cf90a14275 Reviewed-on: https://review.coreboot.org/c/coreboot/+/56458 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2021-09-10soc/intel/alderlake: Add get_adl_cpu_type functionTim Wawrzynczak
This function searches the known MCH device IDs for Alder Lake and returns the appropriate enum value representing ADL-P, ADL-M, ADL-S, or unknown. Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I26354b340e0c5f15ba246c1cb831d7feaf62d2ee Reviewed-on: https://review.coreboot.org/c/coreboot/+/57151 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2021-05-07soc/intel/{adl,tgl,jsl}: Enable power button smi after BS_CHIPS_EXITKane Chen
On tgl, we noticed system hang if a shutdown is triggered before fsps. The dut is unable to shutdown properly due to tcss is stuck before tcss_init in fsps. This change enable power button smi on jsl, tgl, adl after fsps. it can also prevent a shutdown failure due to lack of fsps init on certain ip. BUG=b:186194102, b:186815114 TEST=Power on the system and pressing power button repeatedly doesn't cause the system hang during shutdown. Change-Id: I70b871f2676a89bc782116e02beba5c20ec51eef Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/52874 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-02-11src: Remove unused <arch/cpu.h>Elyes HAOUAS
Change-Id: I1112aa4635a3cf3ac1c0a0834317983b4e18135a Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50172 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-02-09soc/amd,intel: Drop s3_resume parameter on FSP-S functionsKyösti Mälkki
ACPI S3 is a global state and it is no longer needed to pass it as a parameter. Change-Id: Id0639a47ea65c210b9a79e6ca89cee819e7769b1 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50360 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-10-28soc/intel: deduplicate ACPI timer emulationMichael Niewöhner
The code for enabling ACPI timer emulation is the same for the SoCs SKL, CNL, ICL, TGL, JSL and EHL. Deduplicate it by moving it to common code. APL differs in not having the delay settings. However, the bits are marked as "spare" and BWG mentions there are no "reserved bit checks done". Thus, we can write them unconditionally without any effect. Note: The ACPI timer emulation can only be used by SoCs with microcode supporting CTC (Common Timer Copy) / ACPI timer emulation. Change-Id: Ied4b312b6d53e80e71c55f4d1ca78a8cb2799793 Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45951 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-10-26soc/intel: drop unneeded ISST configuration codeMichael Niewöhner
The code configuring ISST (Intel SpeedShift Technology) sets the ISST capability bits in CPUID.06H:EAX. It does *not* activate HWP (Hardware P-States), which shall be done by the OS only. Since the capability is enabled by default (opt-out), there is nothing to do for us in the enabled-case. Practically speaking, there is no value at all in disabling the capability, since one can configure the OS to not enable HWP if that is desired. The two other bits for EPP and HWP interrupt that were set by the code are not set anymore, too. It was tested, on three platforms so far (CML-U, KBL-H, SKL-U), that these are set as well by default in the MSRs reset value (0x1cc0). To reduce complexity and duplicated code without actual benefit, this code gets dropped. The remaining dt option will be dropped in CB:46462. Test: Linux on Supermicro X11SSM-F detects and enables HWP: [ 0.415017] intel_pstate: HWP enabled Change-Id: I952720cf1de78b00b1bf749f10e9c0acd6ecb6b7 Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46460 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Felix Singer <felixsinger@posteo.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-24{cpu,soc}/intel: deduplicate cpu codeMichael Niewöhner
Move a whole bunch of copy-pasta code from soc/intel/{bdw,skl,cnl,icl, tgl,ehl,jsl,adl} and cpu/intel/{hsw,model_*} to cpu/intel/common. This change just moves the code. Rework is done in CB:46588. Change-Id: Ib0cc834de8492d59c423317598e1c11847a0b1ab Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46274 Reviewed-by: Felix Singer <felixsinger@posteo.net> Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-21soc/intel: convert XTAL frequency constant to KconfigMichael Niewöhner
This converts the constant for the XTAL frequency to a Kconfig option. Change-Id: I1382dd274eeb9cb748f94c34f5d9a83880624c18 Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46018 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-10-03soc/intel/alderlake/ramstage: Do initial SoC commit till ramstageSubrata Banik
List of changes: 1. Add required SoC programming till ramstage 2. Include only required headers into include/soc 3. Add CPU, PCH and SA EDS document number and chapter number 4. Fill required FSP-S UPD to call FSP-S API Change-Id: I3394f585d66b14ece67cde9e45ffa1177406f35f Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45759 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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