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2009-08-16sh: Merge the _32/_64 variants of arch/sh/mm/Makefile.Paul Mundt
Now that there is sufficient shared infrastructure, merge the Makefiles. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-16sh: Convert cache disabled SH-5 over to new cache interface.Paul Mundt
The caches enabled case needs more work, but is presently broken regardless, so this can be done incrementally. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-15sh: consolidate nommu stubs in arch/sh/mm/nommu.c.Paul Mundt
These were previous littered around tlb-nommu.c and pg-nommu.c, though at this point there are more stubs than are strictly TLB or page op related, so just consolidate them in a single nommu.c. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-15sh64: Wire up the shared __flush_xxx_region() flushers.Paul Mundt
Now with all of the prep work out of the way, kill off the SH-5 variants and use the SH-4 version directly. This also takes advantage of the unrolling that was previously done for the new version. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: Convert sh64 /proc/asids to debugfs and generic sh.Paul Mundt
This converts the sh64 /proc/asids entry to debugfs and enables it for all SH parts that have debugfs enabled. On MMU systems this can be used to determine which processes are using which ASIDs which in turn can be used for finer grained cache tag analysis. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12sh: Provide a sane valid_phys_addr_range() to prevent TLB reset with PMB.Paul Mundt
With the PMB enabled, only P1SEG and up are covered by the PMB mappings, meaning that situations where out-of-bounds physical addresses are read from will lead to TLB reset after the PMB miss, allowing for use cases like dd if=/dev/mem to reset the TLB. Fix this up to make sure the reference is between __MEMORY_START (phys) and __pa(high_memory). This is coherent across all variants of sh/sh64 with and without MMU, though the PMB bug itself is only applicable to SH-4A parts. Reported-by: Hideo Saito <saito@densan.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-08sh64: Fixup the nommu build.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Rename the _32 and _64 TLB flush variants.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Copy over special CFLAGS for SH-5 TLB miss.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move over SH-5 TLB and cache support code.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move in the SH-5 TLB miss.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Split out tlb-flush in to _32 and _64 variants.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Split out ioremap in to _32 and _64 variants.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Split out extable.c _32 and _64 variants.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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