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| author | Patrick Williams <iawillia@us.ibm.com> | 2012-08-30 12:05:09 -0500 |
|---|---|---|
| committer | A. Patrick Williams III <iawillia@us.ibm.com> | 2012-09-04 17:04:05 -0500 |
| commit | d94559078015ade8301370c54ccd8773f666fec1 (patch) | |
| tree | b7c6c38671118abf1ac87b5b077850b27c5e1447 /src/kernel | |
| parent | 2e8754b467914eb554a886317b88a3a654e0f58d (diff) | |
| download | talos-hostboot-d94559078015ade8301370c54ccd8773f666fec1.tar.gz talos-hostboot-d94559078015ade8301370c54ccd8773f666fec1.zip | |
Write scratch register in start_payload / shutdown.
Change-Id: I47a8ad7914c6833c476a7944be5d352f45467f3a
RTC: 47725
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1646
Tested-by: Jenkins Server
Reviewed-by: Mark W. Wenning <wenning@us.ibm.com>
Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
Diffstat (limited to 'src/kernel')
| -rw-r--r-- | src/kernel/shutdown.S | 6 | ||||
| -rw-r--r-- | src/kernel/start.S | 30 |
2 files changed, 32 insertions, 4 deletions
diff --git a/src/kernel/shutdown.S b/src/kernel/shutdown.S index 30a81ea46..2e03a58a7 100644 --- a/src/kernel/shutdown.S +++ b/src/kernel/shutdown.S @@ -154,6 +154,12 @@ kernel_shutdown_ea0_1_mode: isync ;// Raise thread priority and leave ourselves. or 3,3,3 + ;// Clear "Hostboot active" scratch register. + li r3, (0x40 + 0x38) ;// See sys/mmio.h + mtspr SPRC, r3 + li r3, 0x0 + mtspr SPRD, r3 + b 2b .section .data diff --git a/src/kernel/start.S b/src/kernel/start.S index fd15697f5..d7d4ec202 100644 --- a/src/kernel/start.S +++ b/src/kernel/start.S @@ -1,3 +1,25 @@ +# IBM_PROLOG_BEGIN_TAG +# This is an automatically generated prolog. +# +# $Source: src/kernel/start.S $ +# +# IBM CONFIDENTIAL +# +# COPYRIGHT International Business Machines Corp. 2010,2012 +# +# p1 +# +# Object Code Only (OCO) source materials +# Licensed Internal Code Source Materials +# IBM HostBoot Licensed Internal Code +# +# The source code for this program is not published or otherwise +# divested of its trade secrets, irrespective of what has been +# deposited with the U.S. Copyright Office. +# +# Origin: 30 +# +# IBM_PROLOG_END_TAG /* IBM_PROLOG_BEGIN_TAG * This is an automatically generated prolog. * @@ -676,9 +698,9 @@ system_call_fast_path: extrdi. r6, r6, 1, CPU_STATUS_MASTER beq cr0, 300f ;// Call TASK_MIGRATE_TO_MASTER if not on master. ;// Read scratch. - mtspr 276, r4 + mtspr SPRC, r4 isync - mfspr r3, 277 + mfspr r3, SPRD b 1f ;// Jump to exit point. ;// Migrate task via TASK_MIGRATE_TO_MASTER 300: @@ -703,9 +725,9 @@ system_call_fast_path: extrdi. r6, r6, 1, CPU_STATUS_MASTER beq cr0, 300b ;// Call TASK_MIGRATE_TO_MASTER if not on master. ;// Write scratch. - mtspr 276, r4 + mtspr SPRC, r4 isync - mtspr 277, r5 + mtspr SPRD, r5 b 1f ;// Jump to exit point. ;// Invalid system call, loop for debug. 5: |
