sparc/iommu: fix __sbus_iommu_map_page for highmem pages

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__sbus_iommu_map_page currently assumes all pages are mapped into the
kernel direct mapping.  Switch to using physical address instead of
virtual ones for all the normal mapping operations, and only use
the virtual addresses for cache flushing when not operating on
a highmem page.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Christoph Hellwig 2019-04-16 20:23:45 +02:00 • committed by David S. Miller

parent 8668b38c1c

commit 7e996890b8

1 changed files with 7 additions and 8 deletions

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arch/sparc/mm/iommu.c

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