{"id":4055,"date":"2016-05-10T16:33:51","date_gmt":"2016-05-10T06:33:51","guid":{"rendered":"https:\/\/www.flamingspork.com\/blog\/?p=4055"},"modified":"2016-05-10T16:33:51","modified_gmt":"2016-05-10T06:33:51","slug":"first-power9-bits-merged-into-skiboot-master","status":"publish","type":"post","link":"https:\/\/www.flamingspork.com\/blog\/2016\/05\/10\/first-power9-bits-merged-into-skiboot-master\/","title":{"rendered":"First POWER9 bits merged into skiboot master"},"content":{"rendered":"

I just merged in some base POWER9 support<\/a> patches into skiboot<\/a>. While this is in no way near complete or really enough to be interesting to anyone that isn’t heavily involved in POWER9 development, it’s nice to take upstream first and open source first so seriously that this level of base enablement patches is easy to merge in.<\/p>\n

Other work that has gone on for POWER9 in open source projects include way back in November 2015 where work for the updated PowerISA 3.0 was merged into binutils<\/a> and this year there’s been kernel work too.<\/p>\n","protected":false},"excerpt":{"rendered":"

I just merged in some base POWER9 support patches into skiboot. While this is in no way near complete or really enough to be interesting to anyone that isn’t heavily involved in POWER9 development, it’s nice to take upstream first … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[570,615],"tags":[636,587,568,657,584],"class_list":["post-4055","post","type-post","status-publish","format-standard","hentry","category-ibm-work-et-al","category-powerpc","tag-opal","tag-openpower","tag-power8","tag-power9","tag-skiboot"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5a6n8-13p","jetpack-related-posts":[{"id":4072,"url":"https:\/\/www.flamingspork.com\/blog\/2016\/06\/20\/building-opal-firmware-for-power9\/","url_meta":{"origin":4055,"position":0},"title":"Building OPAL firmware for POWER9","author":"Stewart Smith","date":"2016-06-20","format":false,"excerpt":"Recently, we merged into the op-build project (the build scripts for OpenPOWER Firmware) a defconfig for building OPAL for (certain) POWER9 simulators. I won't bother linking over to articles on the POWER9 chip or schedule (there's search engines for that), but with this commit - if you happen to be\u2026","rel":"","context":"In "IBM"","block_context":{"text":"IBM","link":"https:\/\/www.flamingspork.com\/blog\/category\/work-et-al\/ibm-work-et-al\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4532,"url":"https:\/\/www.flamingspork.com\/blog\/2019\/12\/31\/speeding-up-blackbird-boot-the-sbe\/","url_meta":{"origin":4055,"position":1},"title":"Speeding up Blackbird boot: the SBE","author":"Stewart Smith","date":"2019-12-31","format":false,"excerpt":"The Self Boot Engine (SBE) is a small embedded PPE42 core inside the POWER9 CPU which has the unenvious job of getting a single POWER9 core ready enough to start executing instructions out of L3 cache, and poking some instructions into said cache for the core to start executing. It's\u2026","rel":"","context":"In "code"","block_context":{"text":"code","link":"https:\/\/www.flamingspork.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4495,"url":"https:\/\/www.flamingspork.com\/blog\/2019\/12\/10\/blackbird-singing-in-the-dead-of-night\/","url_meta":{"origin":4055,"position":2},"title":"Blackbird (singing in the dead of night..)","author":"Stewart Smith","date":"2019-12-10","format":false,"excerpt":"Way back when Raptor Computer Systems was doing pre-orders for the microATX Blackboard POWER9 system, I put in a pre-order. Since then, I've had a few life changes (such as moving to the US and starting to work for Amazon rather than IBM), but I've finally gone and done (most\u2026","rel":"","context":"In "cool gadgets"","block_context":{"text":"cool gadgets","link":"https:\/\/www.flamingspork.com\/blog\/category\/cool-gadgets\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2019\/12\/IMG_4007-scaled.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2019\/12\/IMG_4007-scaled.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2019\/12\/IMG_4007-scaled.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2019\/12\/IMG_4007-scaled.jpg?resize=700%2C400 2x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2019\/12\/IMG_4007-scaled.jpg?resize=1050%2C600 3x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2019\/12\/IMG_4007-scaled.jpg?resize=1400%2C800 4x"},"classes":[]},{"id":4574,"url":"https:\/\/www.flamingspork.com\/blog\/2020\/03\/22\/my-power9-cpu-core-layout\/","url_meta":{"origin":4055,"position":3},"title":"My POWER9 CPU Core Layout","author":"Stewart Smith","date":"2020-03-22","format":false,"excerpt":"So, following on from my post on Sensors on the Blackbird (and thus Power9), I mentioned that when you look at the temperature sensors for each CPU core in my 8-core POWER9 chip, they're not linear numbers. Let's look at what that means.... stewart@blackbird9$ sudo ipmitool sensor | grep core\u2026","rel":"","context":"In "General"","block_context":{"text":"General","link":"https:\/\/www.flamingspork.com\/blog\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2020\/03\/Screenshot-from-2020-03-21-14-31-30-mycores-1.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2020\/03\/Screenshot-from-2020-03-21-14-31-30-mycores-1.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2020\/03\/Screenshot-from-2020-03-21-14-31-30-mycores-1.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2020\/03\/Screenshot-from-2020-03-21-14-31-30-mycores-1.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":4345,"url":"https:\/\/www.flamingspork.com\/blog\/2017\/12\/11\/a-simplified-view-of-openpower-firmware-development\/","url_meta":{"origin":4055,"position":4},"title":"A (simplified) view of OpenPOWER Firmware Development","author":"Stewart Smith","date":"2017-12-11","format":false,"excerpt":"I've been working on trying to better document the whole flow of code that goes into a build of firmware for an OpenPOWER machine. This is partially to help those not familiar with it get a better grasp of the sheer scale of what goes into that 32\/64MB of flash.\u2026","rel":"","context":"In "code"","block_context":{"text":"code","link":"https:\/\/www.flamingspork.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2017\/12\/devflow-legend.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2017\/12\/devflow-legend.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2017\/12\/devflow-legend.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.flamingspork.com\/blog\/wp-content\/uploads\/2017\/12\/devflow-legend.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":4508,"url":"https:\/\/www.flamingspork.com\/blog\/2019\/12\/10\/looking-at-the-state-of-blackbird-firmware\/","url_meta":{"origin":4055,"position":5},"title":"Looking at the state of Blackbird firmware","author":"Stewart Smith","date":"2019-12-10","format":false,"excerpt":"Having been somewhat involved in OpenPOWER firmware, I have a bunch of experience and opinions on maintaining firmware trees for products, what working with upstream looks like and all that. 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