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* Doorbell Interrupt Base Support for Core/Thread WakeupBill Hoffa2016-05-061-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | This change includes: - Implementation of a generic KernelWorkItem Class - Kernel functionality for doorbell send to specific PIRs - Kernel changes to send core/thread Wakeup doorbells using doorbell_send() + placing KernelWorkItems on a cpu stack obj to be executed during doorbell wakeup - Kernel Interrupt Message handler changes to send wakeup msgs - Interrupt Resource Provider (INTRRP) Changes to handle wakeup msgs and monitor for timeouts - Changes to the IPL flow to invoke proper Core/Thread Wakeup - A basic outline (commented out) for how IPC messages can be implemented in the future Change-Id: I547fb8719bac657def561565ae11ab18cde72096 CMVC-Prereq: 992722 RTC:137564 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/22815 Tested-by: Jenkins Server Tested-by: FSP CI Jenkins Reviewed-by: Andrew J. Geissler <andrewg@us.ibm.com> Reviewed-by: Prachi Gupta <pragupta@us.ibm.com> Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
* Change copyright prolog for all files to Apache.Patrick Williams2014-05-211-10/+10
| | | | | | | Change-Id: I5664587b4f889099290ef50d50fa9ce5e580e1eb Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/11167 Tested-by: Jenkins Server Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* Use per-core mutex for XSCOM for P8 errata.Patrick Williams2014-04-031-2/+2
| | | | | | | | | | | | | | | | See HW822317. The HMER register in P8 is not implemented to handle multi-threaded XSCOM properly, so we need to move the XSCOM mutex from per-thread to per-core. Also, there is an issue where the 'done' bit can come on 1 cycle before the error indicators, so need to potentially read the HMER a second time. Change-Id: I495031a6e425fe7d5c6ffef8dda1e7a71caac9f2 CQ: SW250902 Backport: release-fips810 Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/9929 Reviewed-by: Michael Baiocchi <baiocchi@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com> Tested-by: Jenkins Server
* Fixes for winkle state.Patrick Williams2012-09-211-0/+4
| | | | | | | | | | | | | | | | | | | The memory profiling tools sometimes encountered a condition where the kernel stack was becoming corrupted. I tracked it down to the winkle code storing the winkle-save state at the wrong end of the stack. Moving the winkle-save area to the bottom of the stack, which is where I originally intended it to go. Also noticed that the task issuing the winkle was in "running" state while waiting for the cores to come out of winkle. Ensure that the kernel updates the task state with a non-running status while we are waiting for winkle to complete. Change-Id: I07a56ea6f24cbc09362f9227d81915da5bc9f148 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1737 Tested-by: Jenkins Server Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com> Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
* Allow processors on logical nodes != 0.Patrick Williams2012-09-061-26/+26
| | | | | | | | | | | | | | | | | Created per-node arrays of CPU objects rather than a single array for the entire system. These are created dynamically as CPUs are enabled. Also disabled support for P7 due to the PIR layout being different and hence would have needed two different sets of assembly code. We have been running exclusively on the P8 Mambo model for a while. RTC: 42815 Change-Id: Ib92de8a7c07c2e700a3b7f0c03c64d484b447ca2 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1630 Tested-by: Jenkins Server Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* Support for master winkle.Patrick Williams2012-08-101-24/+31
| | | | | | | | | RTC: 44730 Change-Id: Ifaeecc659e1bfd8ded4744dc591fc993471519ba Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1471 Tested-by: Jenkins Server Reviewed-by: Mark W. Wenning <wenning@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* Support for core_activate via IPI.Patrick Williams2012-07-161-0/+3
| | | | | | | | RTC: 37009 Change-Id: I56669805c86d9659a20ad7c26e5e9860c7a248c7 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1087 Tested-by: Jenkins Server Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* Support P8 mambo model and Murano proc.Patrick Williams2012-03-211-2/+2
| | | | | | | | | RTC: 38206 Change-Id: Iab79041931db533ad6b6ebd057c1ef9fe4c4b8cc Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/714 Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com> Tested-by: Jenkins Server Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* new HEAP manager to reduce fragmentationDoug Gilbert2011-10-251-2/+5
| | | | | | | | Change-Id: Ibe725a43e6366d9113ec99df1cc6aafa7bbb770e Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/431 Tested-by: Jenkins Server Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com> Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>
* Mechanism to detect low memory and cast out older pageDoug Gilbert2011-09-191-0/+3
| | | | | | | | Change-Id: Icce8e01f3d1cd2942f2b9ff802993da0441535ee Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/344 Tested-by: Jenkins Server Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com> Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>
* Ensure scratch operations happen on master core.Patrick Williams2011-08-311-3/+15
| | | | | | | | Change-Id: I970d645108de041d410599847edce877cb794015 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/275 Tested-by: Jenkins Server Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* Add copyright headers to all source files.Patrick Williams2011-08-241-0/+22
| | | | | | | Change-Id: I205f2409e56032cfc0aaf01d7e26d357f0b86373 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/277 Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com> Tested-by: Jenkins Server
* Shutdown and post status on HostBoot completionMike Jones2011-07-191-9/+15
| | | | | | | | Change-Id: If2ab46af85065b29695a1186ed331fd835944eb4 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/204 Tested-by: Jenkins Server Reviewed-by: Mark W. Wenning <wenning@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* Remove heap allocation of xscom mutex.Patrick Williams2011-06-241-1/+1
| | | | | | | | | | | | | | Since mutexes are simply a uint64 with a static initializer, the xscom mutex is now a instance variable directly in the cpu object. Remove unneeded mutex_create function and changed the behavior of mutex_destroy. Change-Id: If6e1d1bf0083c32ef9e7502d27678811bdaf7e1e Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/150 Tested-by: Jenkins Server Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com> Reviewed-by: Thi N. Tran <thi@us.ibm.com>
* Initial futex supportdgilbert2011-06-171-2/+2
| | | | | | | | | Change-Id: I51a4f1117085ce23c7993c1a38e4124596636726 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/141 Tested-by: Jenkins Server Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com> Reviewed-by: Thi N. Tran <thi@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
* Create per-CPU mutex for XSCOM usage.Patrick Williams2011-06-081-0/+4
| | | | | | | | Change-Id: I76ad5c1d553d544b52910afd82e2716781ea13b9 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/140 Tested-by: Jenkins Server Reviewed-by: Thi N. Tran <thi@us.ibm.com> Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>
* Kernel support for processor affinity.Patrick Williams2011-05-261-2/+21
| | | | | | | | | Change-Id: Ie84a805bad58032085208a98b1b31393def681cb Reviewed-on: http://gfwr801.rchland.ibm.com:8080/gerrit/100 Tested-by: Jenkins Server Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com> Reviewed-by: Andrew J. Geissler <andrewg@us.ibm.com> Reviewed-by: Nicholas E. Bofferding <bofferdn@us.ibm.com>
* Support running a full system worth of threads.Patrick Williams2011-03-071-1/+1
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* Merge of PowerHAL project up to commit:Patrick Williams2011-03-051-3/+4
| | | | dd45c30bd53d8e6c123165b83842d08117558a3c
* SMT support.Patrick Williams2010-07-071-0/+11
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* Implement task saving and dispatching.Patrick Williams2010-06-031-1/+1
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* Initial cpu / task structs.Patrick Williams2010-06-021-0/+16
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