the following patch was just integrated into master:
commit 601b27596ffdf526adf5b41c1f8366a5fdddc554
Author: Ronald G. Minnich <[email protected]>
Date: Wed Feb 20 09:24:29 2013 -0800
ARMV7: minor tweaks to inter-stage calling and payload handling.
Payloads, by design, can return. There's lots of mechanism in the payload
code
to support it, and the chooser payload relies on it. Hence, we should not
mark
the function call in exit_stage as noreturn.
Not all ARM have unified caches, and it's not always easy to tell what
to do. So we are very paranoid. Before we call between stages, we
should carefully flush the dcache to memory and invalidate the icache.
This may be more than is necessary on all architectures but it
doesn't really hurt for the most part.
So compile cache management code into all stages, and call the
flush dcache/invalidate icache from all stages.
Change-Id: Ib9cc625c4dfd2d7d4b3c69a74686cc655a9d6484
Signed-off-by: Ronald G. Minnich <[email protected]>
Reviewed-on: http://review.coreboot.org/2462
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <[email protected]>
Build-Tested: build bot (Jenkins) at Wed Feb 20 19:08:39 2013, giving +1
Reviewed-By: Stefan Reinauer <[email protected]> at Wed Feb 20
20:33:25 2013, giving +2
See http://review.coreboot.org/2462 for details.
-gerrit
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