talos-hostboot/src/usr/xscom, branch master

Set the runtime scom trace buffers with constants

2018-04-18T21:24:54+00:00

Change-Id: I6c5e0ce2dde28210125cf698cc4c27b7fe3bdb1e Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/56757 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Martin Gloff Reviewed-by: Christian R. Geddes Reviewed-by: Daniel M. Crowell

Add ibscom runtime support

2018-04-02T17:44:41+00:00

- Add ibscom runtime files - Make ibscom multicast workaround common - Call from ibscom rt_ibscom - Make scom sanity check common - Call from xscom rt_xscom ibscom rt_ibscom RTC:190144 Change-Id: Ia52feac596ff6b6c8fb9f0db4493f35e4ee837af Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/56215 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Martin Gloff Reviewed-by: Daniel M. Crowell

Force checkstops for unhandled machine checks

2018-03-29T16:03:50+00:00

Default MSR[ME]=0 during initial boot for bootloader and hostboot kernel Once the xscom address range has been mapped in, enable the machine check handler to force a checkstop and set MSR[ME]=1 to allow regular machine check handling CQ: SW401402 Change-Id: I104e39465e61b3b19d5c073e71271102711ae54f Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/47179 Reviewed-by: Christian R. Geddes 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: Daniel M. Crowell

Move runtime scoms to common function

2018-03-27T13:50:58+00:00

- Calls hypervisor scom interfaces - Move from xscom/runtime to scom/runtime RTC:190143 Change-Id: I41e0788f03fa27ae87c31a48dd041dbd66ca09c2 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/56042 CI-Ready: Thi N. Tran Reviewed-by: Christian R. Geddes Tested-by: Jenkins Server Reviewed-by: Martin Gloff Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Daniel M. Crowell

Add common XSCOM error literals to HBRT

2018-02-27T20:01:01+00:00

Add a set of common XSCOM error literals that can be used by all platforms. Add mechanisms to translate this common set of literals into XSCOM error callouts. Preserve legacy handling/translation. Change-Id: I0f9ce25604efa0caf7d49e4ec7b5f2176a3c3a91 RTC: 86782 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/54650 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Martin Gloff Reviewed-by: Corey V. Swenson Reviewed-by: Daniel M. Crowell

Tweaks to multicast scom workaround

2018-01-09T15:37:55+00:00

Added a mode to avoid a pile of FFDC collection for the case where we expect errors could happen. Also added a couple new flags to control which chiplets get accessed as part of the workaround, one to avoid access to slave cores before they are running and the other to avoid access to the memory chiplets before they have clocks enabled. Without these changes, the code is still functionally correct but the traces get filled with pointless non-errors which makes real problems harder to find and also increases boot time. Change-Id: I834781261d16748cbbfd8511d9649ec19de53d81 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/50503 Tested-by: Jenkins Server Reviewed-by: Christian R. Geddes Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Tested-by: FSP CI Jenkins Reviewed-by: Corey V. Swenson Reviewed-by: Prachi Gupta Reviewed-by: Daniel M. Crowell

Set variables to nullptr after they are deleted

2017-09-25T15:54:57+00:00

While updating some LPC logic a developer noticed a bug where an errlog handle wasnt getting set to nullptr after it was deleted this caused a confusing bug that took awhile to track. I noticed that this bug was all over our code so this commit fixes a lot of cases where variables get deleted but not set to nullptr Change-Id: I103b5c71b93686c3c89b04d1d565a24d4de74e6f Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/45890 Tested-by: Jenkins Server Tested-by: FSP CI Jenkins Reviewed-by: William G. Hoffa Tested-by: Jenkins OP Build CI Reviewed-by: Matt Derksen Tested-by: Jenkins OP HW Reviewed-by: Daniel M. Crowell

Apply multicast offline workaround to hbrt path under opal

2017-09-08T14:44:11+00:00

Multicast operations to non-pcbslave registers will return a piberr of 'chiplet offline' if any chiplets (e.g. cores) are offline. To handle this we already ignore this scenario during IPL. This change adds some decode logic to convert opal return codes into their equivalent piberr values. With this logic the workaround should trigger and avoid scom errors. Resolves open-power/boston-openpower/#463 RTC: 86782 Change-Id: I5f587ff9bd1db08e3a5ad5131f8053e8495f45a2 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/45526 Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: FSP CI Jenkins Reviewed-by: Corey V. Swenson Reviewed-by: Christian R. Geddes Reviewed-by: Daniel M. Crowell

Use XSCOM BAR from Bootloader instead of hardcoded value

2017-06-07T16:43:35+00:00

The memory map can be modified by the SBE such that the XSCOM BAR is not in the default location. The BAR value is passed up through the bootloader into hostboot. Change-Id: I469b7534d384bce4bb8c72f7cd78d0075ac04632 RTC: 173519 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/41140 Reviewed-by: Martin Gloff Tested-by: Jenkins Server Tested-by: FSP CI Jenkins Tested-by: Jenkins OP Build CI Reviewed-by: Christian R. Geddes Reviewed-by: Daniel M. Crowell

Map BAR attributes based on data from Bootloader

2017-06-02T13:23:59+00:00

If the master processor has no memory behind it the entire memory map must be modified. Each processor has its own statically defined map that covers both memory and MMIOs. If the master has no memory, its memory map is swapped with another processor. Each processor gets a new effective fabric id that is then used to compute all of the BAR values for those processors. The SBE boots with a certain memory map programmed into the master processor. That value is then passed up through the bootloader into Hostboot. This value is compared to the BAR values that Hostboot assumes it is using. Based on that comparison, various attributes are computed to match the effective fabric positions. Change-Id: I2b0d1959c303df8c9c28c8f0a5b5be1e77aa154f RTC: 173528 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/40359 Tested-by: Daniel M. Crowell Reviewed-by: Martin Gloff Reviewed-by: Christian R. Geddes Tested-by: Jenkins Server Tested-by: FSP CI Jenkins Reviewed-by: William G. Hoffa