talos-hostboot/src/kernel, branch 07-25-2019

Force a Hostboot dump on any TI in Simics

2020-01-07T19:14:40+00:00

Execute a magic instruction in the TI path to force a hostboot dump to be collected on any TI while running in Simics. Change-Id: I8aeffb2b646bbe8480568e8af33a658400fa01a5 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/88831 Reviewed-by: Nicholas E Bofferding Reviewed-by: Matt Derksen Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: William G Hoffa

Add current istep into TI SRC

2019-12-18T17:41:02+00:00

Word4 of the SRC is defined to be the 'last progress code' for FSP SRCs. For Hostboot TIs, we currently leave that word zero. This change will add the same data that we put into the scratch register 5 into word4 so that we will have the failing istep for any TI we encounter. Change-Id: Iaf5ec835d45b1ea3a6ced20b5b7f7d07216c548e Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/88813 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Ilya Smirnov Reviewed-by: Matt Derksen Reviewed-by: Nicholas E Bofferding

Automatically include config.h

2019-12-06T16:28:47+00:00

Rather than having to remember to include config.h anywhere we reference a CONFIG variable (and usually forgetting), this adds it to the default compiler flags so that it gets included in every source file we build. Change-Id: I53622ab4d46c55d942e98cae6ec03049fd5b3d08 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/87475 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Zachary Clark Reviewed-by: Roland Veloz Reviewed-by: Christian R Geddes Reviewed-by: Nicholas E Bofferding

Correct ptr math and force CI i/o in kernal for machchk escalation

2019-12-03T22:48:31+00:00

When we take machine checks in hostboot we will escalate them to a checkstop by setting bit 31 in the PB Fir reg 0x5012000. This is done via xscom in some kernel code. There were 2 bugs found in this path. The first was in how we were calculating the MMIO addressed used to perform the xscom. The other issue was that we were not forcing the kernel code to perform a cache-inhibited store. This commit addressed both of these problems. Change-Id: I41871fa754cbedf4cdb913711ce02a00f0213334 CQ: SW481030 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/87539 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Daniel M Crowell Reviewed-by: Nicholas E Bofferding Reviewed-by: William G Hoffa

Fix bug in crash handler register dump

2019-11-20T18:53:21+00:00

This commit fixes a NULL-dereference in the register dump code for the kernel crash handler. The task pointer can be NULL, in which case we should not attempt to dump registers. Change-Id: I3433ca466f34827f102d64ef2aac4fffc5b49b70 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/87422 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: William G Hoffa Reviewed-by: Nicholas E Bofferding Reviewed-by: Daniel M Crowell

Add register file dump to kernel backtrace printout for crashed tasks

2019-10-25T01:07:04+00:00

Add a printout for a crashed task's general-purpose registers to the kernel backtrace printout as a debugging aid. Change-Id: I84d81cc6af679dfc8618145e1f143db7b4b6d9db Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/85925 Reviewed-by: Michael Baiocchi Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Nicholas E Bofferding

Enable URMOR hack for Axone in shutdown path

2019-07-25T12:59:49+00:00

Axone ended up using the same core as Nimbus so it has the same bugs. Change-Id: Ie27b3e49219ce872bbc8dda60aacccbb71093b8c Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/80909 Reviewed-by: Ilya Smirnov Tested-by: Jenkins Server Tested-by: FSP CI Jenkins Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Reviewed-by: Dean Sanner Reviewed-by: Daniel M Crowell

Developer Improvement: Get code coverage tool working with Hostboot

2019-05-13T14:10:45+00:00

This commit fixes GCOV code coverage for P9 with GCC 4.9.2 Change-Id: Ie1e7c35f67414531dbd6e7a771ac1529a9ebd59d RTC: 208351 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/76812 Tested-by: Jenkins Server Reviewed-by: Nicholas E. Bofferding Reviewed-by: Ilya Smirnov Tested-by: Jenkins OP Build CI Tested-by: FSP CI Jenkins Tested-by: Jenkins OP HW Reviewed-by: Daniel M. Crowell

Reduce LRU RO constraint to allow RO page evictions

2019-04-17T13:26:18+00:00

The current read only contraint used to determine when to cast out read only pages exceeds the maximum LRU value, and thus the required page evictions never occur. This change decreases the constraint so that it is one less than the max LRU value. Change-Id: I9e37067c4ed219458778edce6ab826ef481dbf21 CQ: FW690233 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/76054 Reviewed-by: Daniel M. Crowell Reviewed-by: Glenn Miles Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: FSP CI Jenkins Tested-by: Jenkins OP HW Reviewed-by: Michael Baiocchi Reviewed-by: Nicholas E. Bofferding

Fix page coalesce bug in coalescing end of cache memory range

2019-04-08T18:19:46+00:00

Fixes a page coalesce bug where the page coalesce routine failed to factor in the actual start address of the range, and therefore could not coalesce pages back together correctly. Additionally, decreases the amount of space reserved for the OCC bootloader from an inadvertent 32k to 4k as intended. Change-Id: Iffd35560d67f6b2f27daf6dca3dc45a900fb4335 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/75636 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: FSP CI Jenkins Tested-by: Jenkins OP HW Reviewed-by: Ilya Smirnov Reviewed-by: Michael Baiocchi Reviewed-by: Daniel M. Crowell