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(parent: 2c911a1) | patch
powerpc/spufs: fix missed stop-and-signal event
authorLuke Browning <lukebrowning@us.ibm.com>
Mon, 16 Jun 2008 00:42:38 +0000 (10:42 +1000)
committerJeremy Kerr <jk@ozlabs.org>
Mon, 16 Jun 2008 04:35:01 +0000 (14:35 +1000)
commit028fda0a6c80c26f1d9f403b4490b9ddc74ffa3b
treebb8c8977b4b4991919d8995c01f197fb4e5f00ddtree | snapshot
parent2c911a14b74fa9cf815a936f310e4fa85bee77cecommit | diff
powerpc/spufs: fix missed stop-and-signal event

There is a delay in the transition to the stopped state for class 2
interrupts. In some cases, the controlling thread detects the state of
the spu as running, and goes back to sleep resulting in a hung
application as the event is missed.

This change detects the stop condition and re-generates the wakeup event
after a context save.

Signed-off-by: Luke Browning <lukebrowning@us.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
arch/powerpc/platforms/cell/spufs/sched.c diff | blob | history
Domain: System / Uncategorized;