Thread (64 messages) 64 messages, 5 authors, 2010-05-28
STALE5878d

[PATCH 2/8] ARM: Implement read/write for ownership in theARMv6 DMA cache ops

From: Ronen Shitrit <hidden>
Date: 2010-05-17 11:27:50

Performance wise we prefer to enable it...
But it seems to be on the safe side we will disable it.

Thanks

-----Original Message-----
From: Catalin Marinas [mailto:catalin.marinas at arm.com] 
Sent: Monday, May 17, 2010 2:08 PM
To: Ronen Shitrit
Cc: Russell King - ARM Linux; linux-arm-kernel at lists.infradead.org
Subject: RE: [PATCH 2/8] ARM: Implement read/write for ownership in theARMv6 DMA cache ops
In case of Cortex-A9 (ARMv7), the TRM states clearly that it can do
speculative loads into the L1 D-cache and this can be disabled via a bit
in the auxiliary control register. Do you have a similar bit on your
ARMv6 MP processor?

[Ronen Shitrit] Yes.
So, use it :)

-- 
Catalin
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