4 Commits

Author	SHA1	Message	Date
Hideo Saito	a602cc05f8	sh: Fix multiple UTLB hit on UP SH-4. ... This acts as a reversion of 1c6b2ca5e0939bf8b5d1a11f1646f25189ecd447 in the case of UP SH-4, where we still have the risk of a multiple hit between the slow and fast paths. As seen on SH7780. Signed-off-by: Hideo Saito <saito@densan.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2008-02-14 14:45:08 +09:00
Magnus Damm	e7cc9a7340	sh: trapped io support V2 ... The idea is that we want to get rid of the in/out/readb/writeb callbacks from the machvec and replace that with simple inline read and write operations to memory. Fast and simple for most hardware devices (think pci). Some devices require special treatment though - like 16-bit only CF devices - so we need to have some method to hook in callbacks. This patch makes it possible to add a per-device trap generating filter. This way we can get maximum performance of sane hardware - which doesn't need this filter - and crappy hardware works but gets punished by a performance hit. V2 changes things around a bit and replaces io access callbacks with a simple minimum_bus_width value. In the future we can add stride as well. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2008-02-14 14:22:09 +09:00
Paul Mundt	b62ad83d91	sh: Correct pte size mismatch for X2 TLB. ... Fixes up a build warning/error in arch/sh/mm/fault_32.c. Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2008-01-28 13:19:02 +09:00
Paul Mundt	811d50cb43	sh: Move in the SH-5 TLB miss. ... Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2008-01-28 13:18:50 +09:00