3 commits

Author	SHA1	Message	Date
Paul Mundt	6e4154d4c2	sh: Use more aggressive dcache purging in kmap teardown. ... This fixes up a number of outstanding issues observed with old mappings on the same colour hanging around. This requires some more optimal handling, but is a safe fallback until all of the corner cases have been handled. Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2009-09-08 16:21:00 +09:00
Paul Mundt	0906a3ad33	sh: Fix up and optimize the kmap_coherent() interface. ... This fixes up the kmap_coherent/kunmap_coherent() interface for recent changes both in the page fault path and the shared cache flushers, as well as adding in some optimizations. One of the key things to note here is that the TLB flush itself is deferred until the unmap, and the call in to update_mmu_cache() itself goes away, relying on the regular page fault path to handle the lazy dcache writeback if necessary. Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2009-09-03 17:21:10 +09:00
Paul Mundt	2739742c24	sh: Provide the kmap_coherent() interface generically. ... This plugs in kmap_coherent() for the non-SH4 cases to permit the pg-mmu.c bits to be used generically across all CPUs. SH-5 is still in the TODO state, but will move over to fixmap and the generic interface gradually. Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2009-08-15 09:19:19 +09:00