Paul Mundt 8cf1a74305 sh: Add kmap_coherent()/kunmap_coherent() interface for SH-4. ...

This wires up kmap_coherent() and kunmap_coherent() on SH-4, and
moves away from the p3map_mutex and reserved P3 space, opting to
use fixmaps for colouring instead.

The copy_user_page()/clear_user_page() implementations are moved
to this, which fixes the nasty blowups with spinlock debugging
as a result of having some of these calls nested under the page
table lock.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2007-07-24 13:28:26 +09:00

3.3 KiB

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