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Blackfin: SMP: kgdb: flush core internal write buffer before flushinv
authorSonic Zhang <sonic.zhang@analog.com>
Fri, 12 Nov 2010 05:54:32 +0000 (05:54 +0000)
committerMike Frysinger <vapier@gentoo.org>
Mon, 10 Jan 2011 12:18:21 +0000 (07:18 -0500)
commit8c91fa8e87156f8f084fb628e7e78de4adba26da
treea870fdcb5f67c912717888462eea41393808f5detree | snapshot
parentbc9984b51ddffaa73a42d6c60aa2187c5796a7adcommit | diff
Blackfin: SMP: kgdb: flush core internal write buffer before flushinv

KGDB single step in SMP kernel may hang forever in flushinv without a
CSYNC ahead.  This is because the core internal write buffers need to
be flushed before invalidating the data cache to make sure the insn
fetch is not out of sync.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
arch/blackfin/mach-bf561/atomic.S diff | blob | history
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