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2021-08-06Basic P10 stop state supportVaidyanathan Srinivasan1-0/+16
Adds support for STOP0 lite, STOP2 and STOP3 for Power10 with the following latencies, residency requirements: latency residency stop0lite 1us 10us stop0 10us 100us stop2 20us 200us stop3 45us 450us Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.ibm.com> Signed-off-by: Pratik R. Sampat <psampat@linux.ibm.com> Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
2020-03-12Re-license IBM written files as Apache 2.0 OR GPLv2+Stewart Smith1-1/+1
SPDX makes it a simpler diff. I have audited the commit history of each file to ensure that they are exclusively authored by IBM and thus we have the right to relicense. The motivation behind this is twofold: 1) We want to enable experiments with coreboot, which is GPLv2 licensed 2) An upcoming firmware component wants to incorporate code from skiboot and code from the Linux kernel, which is GPLv2 licensed. I have gone through the IBM internal way of gaining approval for this. The following files are not exclusively authored by IBM, so are *not* included in this update (I will be seeking approval from contributors): core/direct-controls.c core/flash.c core/pcie-slot.c external/common/arch_flash_unknown.c external/common/rules.mk external/gard/Makefile external/gard/rules.mk external/opal-prd/Makefile external/pflash/Makefile external/xscom-utils/Makefile hdata/vpd.c hw/dts.c hw/ipmi/ipmi-watchdog.c hw/phb4.c include/cpu.h include/phb4.h include/platform.h libflash/libffs.c libstb/mbedtls/sha512.c libstb/mbedtls/sha512.h platforms/astbmc/barreleye.c platforms/astbmc/garrison.c platforms/astbmc/mihawk.c platforms/astbmc/nicole.c platforms/astbmc/p8dnu.c platforms/astbmc/p8dtu.c platforms/astbmc/p9dsu.c platforms/astbmc/vesnin.c platforms/rhesus/ec/config.h platforms/rhesus/ec/gpio.h platforms/rhesus/gpio.c platforms/rhesus/rhesus.c platforms/astbmc/talos.c platforms/astbmc/romulus.c Signed-off-by: Stewart Smith <stewart@linux.ibm.com> [oliver: fixed up the drift] Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
2019-07-26SPDX-ify all skiboot codeStewart Smith1-15/+2
Use Software Package Data Exchange (SPDX) to indicate license for each file that is unique to skiboot. At the same time, ensure the (C) who and years are correct. See https://spdx.org/ Signed-off-by: Stewart Smith <stewart@linux.ibm.com> [oliver: Added a few missing files] Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
2019-06-24host_services_occ_base_setup is core homer code not host_servicesStewart Smith1-0/+25
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
2019-02-25sparse: symbol '*bar*' was not declared. Should it be static?Stewart Smith1-3/+3
Yes, a bunch of HOMER symbols should be. Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
2017-09-05hw/homer.c: Remove space before tab in commentJoel Stanley1-1/+1
Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-05-26mem_region: rename HW_RESERVE to FW_RESERVEOliver O'Halloran1-3/+3
Currently all existing reservations are made by hostboot itself or on behalf of some other part of system firmware (e.g. the OCCs). We want to add a "true" hardware reservation type that should not be touched by the host OS. To prepare for that this patch renames the existing reservation type to refect it's actual usage. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-03-23homer : Enable HOMER region reservation for POWER9Shilpasri G Bhat1-8/+74
PBA BARs map various regions in HOMER memory used by STOP engines and OCC. Skip PBA BARs that have incomplete initialization and reserve the regions that are available in the system. Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-08-17hw/homer: Don't re-reserve homer rangesJeremy Kerr1-5/+20
Hostboot is going to cover these ranges with its own reservations (to allow access from the HBRT image), so don't overwrite reservations with our own. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-06-05core/mem_region: Create reservations of type REGION_HW_RESERVEDskiboot-5.0.3Jeremy Kerr1-3/+3
All current users of mem_reserve are actually wanting HW_RESERVED memory; these reservations are for memory initialised pre-skiboot. This change marks these regions as REGION_HW_RESERVED instead of REGION_RESERVED. We also rename mem_reserve to mem_reserve_hw to reflect this change. This fixes an issue where the PRD daemon cannot find reserved ranges (eg, the homer image) that have been created by skiboot itself. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-02-18Replace is_mambo_chip with a better chip quirk mechanismBenjamin Herrenschmidt1-1/+1
And add some basic qemu quirks Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-12-01Add tweaks to work in Mambo simulatorBenjamin Herrenschmidt1-1/+1
Mambo doesn't implement various things such as PBA SCOMs, LPC, ChipTOD, etc... It also provides a special console hook. This adds detection of Mambo via the /mambo node, and enables us to boot all the way to Linux. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-10-15Quieten a couple more thingsBenjamin Herrenschmidt1-1/+1
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-10-15Modify HOMER printouts in hw/homer.c to be (mostly) PR_DEBUG prlog callsStewart Smith1-9/+9
Having these in memory may be of benefit, but we don't need them out the serial console unless something fooey is going on. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-07-02Initial commit of Open Source releaseBenjamin Herrenschmidt1-0/+143
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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