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path: root/src/include/device/pci_def.h
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2023-10-06device/pci_def.h: Add more bitsPatrick Rudolph
Add more fields for PCIe slots status and link control and slot capabilities. Change-Id: I64e40ea6bd731cd52ce006224b7c3091d5ef3aac Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/78237 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2023-03-05cpu/x86/smm: Add PCI resource store functionalityRobert Zieba
In certain cases data within protected memmory areas like SMRAM could be leaked or modified if an attacker remaps PCI BARs to point within that area. Add support to the existing SMM runtime to allow storing PCI resources in SMRAM and then later retrieving them. BRANCH=guybrush BUG=b:186792595 TEST=builds Signed-off-by: Robert Zieba <robertzieba@google.com> Change-Id: I23fb1e935dd1b89f1cc5c834cc2025f0fe5fda37 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67931 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
2023-02-28include/device/pci_def.h: Fix typo in commentWerner Zeh
Fix typo in the comment for Common Clock Configuration. Change-Id: Idd01e787458a9090d53b9a57547b8158480dcc16 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/73311 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
2023-02-06inc/device: Add extended capability ID for ATSTim Chu
Add extended capability ID for Address Translation Services. This definition can be found in PCI Express Base Specification rev6.0 9.3.7. Signed-off-by: Tim Chu <Tim.Chu@quantatw.com> Change-Id: I777070ea223fc7e83c510c8eadbe4e028825eef6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/71929 Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2022-12-22inc/dev/pci_def.h: add definitions for RCEC EA Ext. CapbilityJonathan Zhang
Root Complex Event Collector Endpoint Association Extended Capability is defined in section 7.9.10 of PCIe 5.0 spec. Add its Extended Capability ID, association bitmap for RCiEPs register, and RCEC associated bus numbers register. Signed-off-by: Jonathan Zhang <jonzhang@fb.com> Change-Id: I7bede8ed88304a2925e6e1e4128bcdd625ee0e53 Reviewed-on: https://review.coreboot.org/c/coreboot/+/69093 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-11-13inc/dev: Add definitions for Link Capability and Slot CapabilityTim Chu
Add definitions for Link Capability and Slot Capability and these definitions may be used in smbios type 9. Signed-off-by: Tim Chu <Tim.Chu@quantatw.com> Change-Id: Id66710d5569a7247d998cab20c2e41f2e67712cb Reviewed-on: https://review.coreboot.org/c/coreboot/+/69092 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-11-04include/device/pci_def.h: Add some PCIe DPC/AER definitionsTim Chu
* Add DPC related definitions which are defined in 7.9.14 of PCIe 6.0 spec. * Add AER related definitions which are defined in 7.8.4 of PCIe 6.0 spec. Signed-off-by: Tim Chu <Tim.Chu@quantatw.com> Change-Id: Ifb6722c326ef69ef1bf3b1c2c1d5bc0cb29d7c12 Reviewed-on: https://review.coreboot.org/c/coreboot/+/69106 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
2022-09-12device: Clear lane error statusWilson Chou
Refer to PCI Express Base rev6.0 v1.0, 4.2.7 Link Training and Status State Rules, Lane Error Status is normal to record the error when link training. To make sure Lane Error Status is correct in OS runtime, add a Kconfig PCIEXP_LANE_ERR_STAT_CLEAR that clears the PCIe lane error status register at the end of PCIe link training. Test=On Crater Lake, lspci -vvv shows bb:01.0 PCI bridge: Intel Corporation Device 352a (rev 03) (prog-if 00 [Normal decode]) Capabilities: [a30 v1] Secondary PCI Express LnkCtl3: LnkEquIntrruptEn- PerformEqu- LaneErrStat: LaneErr at lane: 0 Signed-off-by: Wilson Chou <Wilson.Chou@quantatw.com> Change-Id: I6344223636409d8fc25e365a6375fc81e69f41a5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67264 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
2022-08-17pciexp_device: Introduce pciexp_find_ext_vendor_cap()Nico Huber
Vendors can choose to add non-standard capabilities inside a Vendor-Specific Extended Capability. These are identified by the Extended Capability ID 0x0b. Change-Id: Idd6dd0e98bd53b19077afdd4c402114578bec966 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/66454 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-08-01include: Add SPDX-License-Identifiers to files missing themMartin Roth
This adds SPDX-License-Identifiers to all of the files in src/include that are missing them or have unrecognized identifiers. Files that were written specifically for coreboot and don't have license information are licensed GPL-2.0-only, which is the license for the overall coreboot project. Files that were sourced from Linux are similarly GPL-2.0-only. The cpu/power files were committed with source that was licensed as GPL-2.0-or-later, so presumably that's the license for that entire commit. The final file, vbe.h gives a pointer to the BSD-2-Clause license at opensource.org. Change-Id: I3f8fd7848ce11c1a0060e05903fb17a7583b4725 Signed-off-by: Martin Roth <martin.roth@amd.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/66284 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Felix Singer <felixsinger@posteo.net>
2022-02-16device: Add support for PCIe Resizable BARsTim Wawrzynczak
Section 7.8.6 of the PCIe spec (rev 4) indicates that some devices can indicates support for "Resizable BARs" via a PCIe extended capability. When support this capability is indicated by the device, the size of each BAR is determined in a different way than the normal "moving bits" method. Instead, a pair of capability and control registers is allocated in config space for each BAR, which can be used to both indicate the different sizes the device is capable of supporting for the BAR (powers-of-2 number of bits from 20 [1 MiB] to 63 [8 EiB]), and to also inform the device of the size that the allocator actually reserved for the MMIO range. This patch adds a Kconfig for a mainboard to select if it knows that it will have a device that requires this support during PCI enumeration. If so, there is a corresponding Kconfig to indicate the maximum number of bits of address space to hand out to devices this way (again, limited by what devices can support and each individual system may want to support, but just like above, this number can range from 20 to 63) If the device can support more bits than this Kconfig, the resource request is truncated to the number indicated by this Kconfig. BUG=b:214443809 TEST=compile (device with this capability not available yet), also verify that no changes are seen in resource allocation for google/brya0 before and after this change. Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I14fcbe0ef09fdc7f6061bcf7439d1160d3bc4abf Reviewed-on: https://review.coreboot.org/c/coreboot/+/61215 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subratabanik@google.com>
2021-11-29device/pci_device.c: Scan only one device for PCIeJianjun Wang
Only scan one device if it's a PCIe downstream port. A PCIe downstream port normally leads to a link with only device 0 on it. As an optimization, scan only for device 0 in that case. Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Change-Id: Id184d03b33e1742b18efb3f11aa9b2f81fa03806 Reviewed-on: https://review.coreboot.org/c/coreboot/+/56788 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-06-21include/pci_def.h: Add some PCI Power Management CSR bitsTim Wawrzynczak
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I84c8470764a4e6e09220044966111ffe72078099 Reviewed-on: https://review.coreboot.org/c/coreboot/+/55674 Reviewed-by: Subrata Banik <subrata.banik@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-15pciexp_device: Rewrite LTR configurationNico Huber
I was bugged by spurious "Failed to enable LTR" messages for years. Looking at the the current algorithm, it is flawed in multiple ways: * It looks like the author didn't know they implemented a recursive algorithm (pciexp_enable_ltr()) inside another recursive algorithm (pciexp_scan_bridge()). Thus, at every tree level, everything is run again for the whole sub- tree. * LTR is enabled no matter if `.set_ltr_max_latencies` is implemented or not. Leaving the endpoints' LTR settings at 0: They are told to always report zero tolerance. In theory, depending on the root-complex implementation, this may result in higher power consumption than without LTR messages. * `.set_ltr_max_latencies` is only considered for the direct parent of a device. Thus, even with it implemented, an endpoint below a (non-root) bridge may suffer from the 0 settings as described above. * Due to the double-recursive nature, LTR is enabled starting with the endpoints, then moving up the tree, while the PCIe spec tells us to do it in the exact opposite order. With the current implementation of pciexp_scan_bridge(), it is hard to hook anything in that runs for each device from top to bottom. So the proposed solution still adds some redundancy: First, for every device that uses pciexp_scan_bus(), we enable LTR if possible (see below). Then, when returning from the bus- scanning recursion, we enable LTR for every device and configure the maximum latencies (if supported). The latter runs again on all bridges, because it's hard to know if pciexp_scan_bus() was used for them. When to enable LTR: * For all devices that implement `.set_ltr_max_latencies`. * For all devices below a bridge that has it enabled already. Change-Id: I2c5b8658f1fc8cec15e8b0824464c6fc9bee7e0e Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51328 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-12pci_def.h: Introduce PCI_EXP_DEVCAP2 & PCI_EXP_DEVCTL2 properNico Huber
Replace the existing, odd looking, unordered definitions used for LTR configuration with the usual names used by upstream libpci. TEST=Built google/brya0 with BUILD_TIMELESS=1: no changes. Fixes: Code looked like UEFI copy-pasta. Header file was a mess. Change-Id: Icf666692e22730e1bdf4bcdada433b3219af568a Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51327 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-09-14src/include: Drop unneeded empty linesElyes HAOUAS
Change-Id: Ie325541547ea10946f41a8f979d144a06a7e80eb Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44611 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-07-28src: Never set ISA Enable on PCI bridgesAngel Pons
Looks like no one really knows what this bit would be useful for, nor when it would need to be set. Especially if coreboot is setting it even on PCI *Express* bridges. Digging through git history, nearly all instances of setting it on PCIe bridges comes from i82801gx, for which no reason was given as to why this would be needed. The other instances in Intel code seem to have been, unsurprisingly, copy-pasted. Drop all uses of this definition and rename it to avoid confusion. The negation in the name could trick people into setting this bit again. Tested on Asrock B85M Pro4, no visible difference. Change-Id: Ifaff29561769c111fb7897e95dbea842faec5df4 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43775 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2020-02-05pciexp: Add support for allocating PCI express hotplug resourcesJeremy Soller
This change adds support for allocating resources for PCI express hotplug bridges when PCIEXP_HOTPLUG is selected. By default, this will add 32 PCI subordinate numbers (buses), 256 MiB of prefetchable memory, 8 MiB of non-prefetchable memory, and 8 KiB of I/O space to any device with the PCI_EXP_SLTCAP_HPC bit set in the PCI_EXP_SLTCAP register, which indicates hot-plugging capability. The resource allocation is configurable, please see the PCIEXP_HOTPLUG_* variables in src/device/Kconfig. In order to support the allocation of hotplugged PCI buses, a new field is added to struct device called hotplug_buses. This is defaulted to zero, but when set, it adds the hotplug_buses value to the subordinate value of the PCI bridge. This allows devices to be plugged in and unplugged after boot. This code was tested on the System76 Darter Pro (darp6). Before this change, there are not enough resources allocated to the Thunderbolt PCI bridge to allow plugging in new devices after boot. This can be worked around in the Linux kernel by passing a boot param such as: pci=assign-busses,hpbussize=32,realloc This change makes it possible to use Thunderbolt hotplugging without kernel parameters, and attempts to match closely what our motherboard manufacturer's firmware does by default. Signed-off-by: Jeremy Soller <jeremy@system76.com> Change-Id: I500191626584b83e6a8ae38417fd324b5e803afc Reviewed-on: https://review.coreboot.org/c/coreboot/+/35946 Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-16soc/intel: Implement PCIe RP devicetree update based on LCAPNico Huber
Most of the current implementations for FSP-based platforms make (sometimes wrong) assumptions how FSP reorders root ports and what is specified in the devicetree. We don't have to make assumptions though, and can read the root-port number from the PCIe link capapilities (LCAP) instead. This is also what we do in ASL code for years already. This new implementation acts solely on information read from the PCI config space. In a first round, we scan all possible DEVFNs and store which root port has that DEVFN now. Then, we walk through the devicetree that still only knows devices that were originally mentioned in `devicetree.cb`, update device paths and unlink vanished devices. To be most compatible, we work with the following constraints: o Use only standard PCI config registers. o Most notable, don't try to read the registers that configure the function numbers. FSP has undocumented ways to block access to non-standard registers. o Don't make assumptions what function is assigned to hidden devices. The following assumptions were made, though: o The absolute root-port numbering as documented in datasheets matches what is read from LCAP. o This numbering doesn't contain any gaps. o Original root-port function numbers below a PCI device start at function zero and also don't contain any gaps. Change-Id: Ib17d2b6fd34608603db3936d638bdf5acb46d717 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35985 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Michael Niewöhner Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-06device/pci: Enable full 16-bit VGA port i/o decodingNico Huber
So, the PCI to PCI bridge specification had a pitfall for us: Originally, when decoding i/o ports for legacy VGA cycles, bridges should only consider the 10 least significant bits of the port address. This means all VGA registers were aliased every 1024 ports! e.g. 0x3b0 was also decoded as 0x7b0, 0xbb0 etc. However, it seems, we never reserved the aliased ports, resulting in silent conflicts we preallocated resources. We neither use much external VGA nor many i/o ports these days, so nobody noticed. To avoid this mess, a bridge control bit (VGA16) was introduced in 2003 to enable decoding of 16-bit port addresses. As older systems seem rather safe and well tested, and newer systems should support this bit, we'll use it if possible and only warn if not. With old (AGP era) hardware one will likely encounter a warning like this: found VGA at PCI: 06:00.0 A bridge on the path doesn't support 16-bit VGA decoding! This is not generally fatal, but makes unnoticed resource conflicts more likely. Change-Id: Id7a07f069dd54331df79f605c6bcda37882a602d Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35516 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Michael Niewöhner Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-21device/pci_device: Add generic subsystem programming logicSubrata Banik
This patch adds generic log to perform subsystem programming based on header type. Type 0: subsystem offset 0x2C Type 2: subsystem offset 0x40 Type 1: Read CAP ID 0xD to know cap offset start, offset 4 to locate subsystem vendor id. Change-Id: Id8aed6dac24517e93cd55d6bb3b254b7b4d950d3 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31983 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: David Guckian Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-07-19device/pci: Add MSI-X helper functionsPatrick Rudolph
Basic PCI MSI-X table helper functions. Imported from GNU/Linux kernel PCI subsystem. To be used on Cavium to configure MSI-X tables. Change-Id: I94413712e7986efd17e6b11ba59f6eb390384c8c Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/26329 Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-10-13src/device: Update LTR configuration schemeAamir Bohra
This patch moves out LTR programming under L1 substate to pchexp_tune_device function, as substate programming and LTR programming are independent. LTR programming scheme is updated to scan through entire tree and enable LTR mechanism on pci device if LTR mechanism is supported by device. BRANCH=none BUG=b:66722364 TEST=Verify LTR is configured for end point devices and max snoop latency gets configured. Change-Id: I6be99c3b590c1457adf88bc1b40f128fcade3fbe Signed-off-by: Aamir Bohra <aamir.bohra@intel.com> Reviewed-on: https://review.coreboot.org/21868 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-03-13src/include: Wrap lines at 80 columnsLee Leahy
Fix the following warning detected by checkpatch.pl: WARNING: line over 80 characters Changed a few comments to reduce line length. File src/include/cpu/amd/vr.h was skipped. TEST=Build and run on Galileo Gen2 Change-Id: Ie3c07111acc1f89923fb31135684a6d28a505b61 Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18687 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-12src/include: Remove spaces before tabsLee Leahy
Fix the following warning detected by checkpatch.pl: WARNING: please, no space before tabs TEST=Build and run on Galileo Gen2 Change-Id: If60a58021d595289722d1d6064bea37b0b0bc039 Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18652 Tested-by: build bot (Jenkins) Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-09src/include: Add space after commaLee Leahy
Fix the following error detected by checkpatch.pl: ERROR: space required after that ',' (ctx:VxV) TEST=Build and run on Galileo Gen2 Change-Id: I297bfc3d03dc95b471d3bb4b13803e81963841b5 Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18647 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-02-03include/device: Move inline functions from pci_def.h to pci.hAlexandru Gagniuc
pci_def.h is supposed to only contain definitions, such that it may be included in assembly files. Declaration of functions in said file prevents that. Change-Id: I0f90a74291c8a2ef7a1e1027d2d2182f896050fb Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: https://review.coreboot.org/13300 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-10-22allocator: Page align memory mapped PCI resourcesNico Huber
To help hypervisors to assign PCI devices individually to virtualization guests, page align dynamically allocated MMIO resources. Tested with kontron/ktqm77 which has dynamically configured onboard devices on the root bus and secondary buses. Booted Linux and checked the configuration with `lspci -v`. Got the configuration through Muen's tools which are very picky about overlapping and alignment. Booted a Muen based system that uses many onboard devices. GMA, xHCI and one NIC (on a secondary bus) were verified to function properly. Change-Id: I2b7115070e1ccad64565feff025289732c3b5e66 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: http://review.coreboot.org/12111 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-04-10PCI - Add interrupt disable bit definitionLee Leahy
BRANCH=none BUG=None TEST=Build Braswell/Strago Change-Id: I11a4c02af3b40edf2252b9e20298941b99f31d21 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 1629d7454a3d4adb8930d14849c41c9a711f4c9a Original-Change-Id: Ie907637f7c823de681ef2e315e803dffc6ad33d3 Original-Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Original-Reviewed-on: https://chromium-review.googlesource.com/241081 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/9487 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-23PCIe: Add L1 Sub-State support.Kenji Chen
Enable L1 Sub-State when both root port and endpoint support it. [pg: keyed the feature to MMCONF_SUPPORT, otherwise boards without that capability fail to build.] Change-Id: Id11fc7c73eb865411747eef63f5f901e00a17f84 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 6ac04ad7e2261846e40da297f7fa317ccebda092 Original-BUG=chrome-os-partner:31424 Original-TEST=Build a image and run on Samus proto boards to check if the settings are applied correctly. I just only have proto boards and need someone having EVT boards to confirm the settings. Original-Signed-off-by: Kenji Chen <kenji.chen@intel.com> Original-Change-Id: Id1b5a52ff0b896f4531c4a6e68e70a2cea8c736a Original-Reviewed-on: https://chromium-review.googlesource.com/221436 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/8832 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-09device/pciexp: Add support for PCIe CLK power managementKane Chen
Set PCIe "Enable Clock Power Management", if endpoint supports it. BUG=chrome-os-partner:31424 BRANCH=none TEST=build and boot on rambi, check Enable Clock Power Management in link control register is set properly Change-Id: Ie54110d1ef42184cfcf47c9fe4d735960aebe47f Signed-off-by: Kane Chen <kane.chen@intel.com> Reviewed-on: https://chromium-review.googlesource.com/220742 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> [Edit commit message.] Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/8447 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-05-25Drop PCI_BDF macro declarationKyösti Mälkki
Not used and did not have 12 bits reserved to address full PCIe configuration space per every function. Change-Id: Ib04a1eb2487735375b4ee738d48a5bebe41ba3c0 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5835 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin.roth@se-eng.com>
2014-02-10usbdebug: Split PCI EHCI partKyösti Mälkki
There are EHCI compatible host controllers on ARM without PCI bus architecture. Currently we have not come across one with the debug capability though. Change-Id: I8775c9814f6fdf8754f97265118a7186369d721d Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5175 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-08-24Add test to match struct device with pci_devfn_tKyösti Mälkki
Add a function to test if pci_devfn_t matches with a device instance of struct device, by comparing bus:dev.fn. Change-Id: Ic6c3148ac62c7183246d83302ee504b17064c794 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3474 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-07-11include: Fix spellingMartin Roth
Change-Id: Iadc813bc8208278996b2b1aa20cfb156ec06fac9 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/3755 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-03-29Add support for enabling PCIe Common Clock and ASPMDuncan Laurie
These are guarded by individual Kconfig entries. The deprecated CONFIG_PCIE_TUNING defines have been removed in favor of using specific config options. This is the generic half, there is board-specific pieces still to come that tune before and after ASPM is enabled. Change-Id: I3fe46282eada67629e9eeeed07e487dff54f2729 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: http://review.coreboot.org/735 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
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
2009-04-21add define for Role-Based Error Reporting to PCIe defines (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@4159 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2006-10-04AMD Rev F supportYinghai Lu
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2435 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2005-07-08eric patchYinghai Lu
1. x86_setup_mtrr take address bit. 2. generic ht, pcix, pcie beidge... 3. scan bus and reset_bus 4. ht read ctrl to decide if the ht chain is ready 5. Intel e7520 and e7525 support 6. new ich5r support 7. intel sb 6300 support. yhlu patch 1. split x86_setup_mtrrs to fixed and var 2. if (resource->flags & IORESOURCE_FIXED ) return; in device.c pick_largest_resource 3. in_conherent.c K8_SCAN_PCI_BUS git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1982 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-10-14- Update the device header filesEric Biederman
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1663 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-03-11- Moved hlt() to it's own header.Eric Biederman
- Reworked pnp superio device support. Now complete superio support is less than 100 lines. - Added support for hard coding resource assignments in Config.lb - Minor bug fixes to romcc - Initial support for catching the x86 processor BIST error codes. I've only seen this trigger once in production during a very suspcious reset but... - added raminit_test to test the code paths in raminit.c for the Opteron - Removed the IORESOURCE_SET bit and added IORESOURCE_ASSIGNED and IORESOURCE_STORED so we can tell what we have really done. - Added generic AGP/IOMMU setting code to x86 - Added an implementation of memmove and removed reserved identifiers from memcpy - Added minimal support for booting on pre b3 stepping K8 cores - Moved the checksum on amd8111 boards because our default location was on top of extended RTC registers - On the Hdama added support for enabling i2c hub so we can get at the temperature sensors. Not that i2c bus was implemented well enough to make that useful. - Redid the Opteron port so we should only need one reset and most of memory initialization is done in cpu_fixup. This is much, much faster. - Attempted to make the VGA IO region assigment work. The code seems to work now... - Redid the error handling in amdk8/raminit.c to distinguish between a bad value and a smbus error, and moved memory clearing out to cpufixup. - Removed CONFIG_KEYBOARD as it was useless. See pc87360/superio.c for how to setup a legacy keyboard properly. - Reworked the register values for standard hardware, moving the defintions from chip.h into the headers of the initialization routines. This is much saner and is actually implemented. - Made the hdama port an under clockers BIOS. I debuged so many interesting problems. - On amd8111_lpc added setup of architectural/legacy hardware - Enabled PCI error reporting as much as possible. - Enhanded build_opt_tbl to generate a header of the cmos option locations so that romcc compiled code can query the cmos options. - In romcc gracefully handle function names that degenerate into function pointers - Bumped the version to 1.1.6 as we are getting closer to 2.0 TODO finish optimizing the HT links of non dual boards TODO make all Opteron board work again TODO convert all superio devices to use the new helpers TODO convert the via/epia to freebios2 conventions TODO cpu fixup/setup by cpu type git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1390 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2003-07-21- First pass at code for generic link width and size determinationEric Biederman
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@999 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2003-05-21- Add pci_def.h so romcc compiled files can also get at theEric Biederman
pci definitions git-svn-id: svn://svn.coreboot.org/coreboot/trunk@839 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1