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ARC: [kbuild] Allow platforms to disable LLSC for !SMP as well
authorVineet Gupta <vgupta@synopsys.com>
Sat, 30 Mar 2013 09:37:47 +0000 (15:07 +0530)
committerVineet Gupta <vgupta@synopsys.com>
Tue, 9 Apr 2013 11:57:00 +0000 (17:27 +0530)
commitfbf8e13d31bafd1fd1135627b1eaaf70520cb8ab
treebb25980836831934977a6d72ad856292ee9bc8cetree | snapshot
parent30ecee8cdd05415e5602bd755d9210e1c5a5b64dcommit | diff
ARC: [kbuild] Allow platforms to disable LLSC for !SMP as well

Currently ARC_HAS_LLSC can be influenced by platform for SMP only using
ARC_HAS_COH_LLSC. For !SMP it defaults to "y".

It turns out that some customers can't support it all, even in UP.
So we change the semantics, and use a negative dependency ARC_CANT_LLSC.
Any platform (independent of SMP or !SMP) can select it to disable LLSC.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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