Vladimir Murzin 5cb9667104 ARM: 8815/1: V7M: align v7m_dma_inv_range() with v7 counterpart ...

[ Upstream commit 3d0358d0ba ]

Chris has discovered and reported that v7_dma_inv_range() may corrupt
memory if address range is not aligned to cache line size.

Since the whole cache-v7m.S was lifted form cache-v7.S the same
observation applies to v7m_dma_inv_range(). So the fix just mirrors
what has been done for v7 with a little specific of M-class.

Cc: Chris Cole <chris@sageembedded.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2018-12-21 14:15:21 +01:00

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