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| author | Patrick Williams <iawillia@us.ibm.com> | 2012-08-20 12:02:55 -0500 |
|---|---|---|
| committer | A. Patrick Williams III <iawillia@us.ibm.com> | 2012-09-06 08:30:05 -0500 |
| commit | 4af5b97526d99ecb9e232b1933c804858a298876 (patch) | |
| tree | 2156b6d6c8e4961acf5cb6e4c662add8af8c8f29 /hb | |
| parent | 8fc9c877be31195fcd7ca4f9c28c78acf61b0937 (diff) | |
| download | talos-hostboot-4af5b97526d99ecb9e232b1933c804858a298876.tar.gz talos-hostboot-4af5b97526d99ecb9e232b1933c804858a298876.zip | |
Nap instruction sometimes executed with wrong permissions.
When executing the nap instruction, all thread state can be
lost. This was causing r0 to be lost, which contained the
system-call number for the idle thread to request permission
to execute nap and as a result 'task-yield' was executed
instead of 'cpu-nap' after the idle thread took its first
nap.
Re-arranged the sreset code that handles nap-wakeup to deal
with thread-state being lost when entering nap and instead
using the previously saved task-state from the 'cpu-nap'
system call.
Change-Id: Id7468a8577c4d7b273b23bc97e7dd040555e7b67
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1567
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
Diffstat (limited to 'hb')
0 files changed, 0 insertions, 0 deletions
