linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2010-01-19	sh: Provide a dummy _PAGE_WIRED flag for non-X2TLB parts.	Paul Mundt	1	-2/+2
	This provides a dummy value for legacy parts which permits the entry wiring to be open-coded. The compiler takes care of optimizing the entry wiring away in these cases. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-16	sh: New extended page flag to wire/unwire TLB entries	Matt Fleming	1	-0/+4
	Provide a new extended page flag, _PAGE_WIRED and an SH4 implementation for wiring TLB entries and use it in the fixmap code path so that we can wire the fixmap TLB entry. Signed-off-by: Matt Fleming <matt@console-pimps.org>
2009-12-14	sh: Couple kernel and user write page perm bits for CONFIG_X2TLB	Matt Fleming	1	-2/+3
	pte_write() should check whether the permissions include either the user or kernel write permission bits. Likewise, pte_wrprotect() needs to remove both the kernel and user write bits. Without this patch handle_tlbmiss() doesn't handle faulting in pages from the P3 area (our vmalloc space) because of a write. Mappings of the P3 space have the _PAGE_EXT_KERN_WRITE bit but not _PAGE_EXT_USER_WRITE. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-10	sh: Prepare for dynamic PMB support	Matt Fleming	1	-1/+1
	To allow the MMU to be switched between 29bit and 32bit mode at runtime some constants need to swapped for functions that return a runtime value. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-09-03	sh: Fix up and optimize the kmap_coherent() interface.	Paul Mundt	1	-1/+7
	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>
2009-08-20	sh: Better description of SH-4 PTEA register update.	Michael Trimarchi	1	-0/+8
	Signed-off-by: Michael Trimarchi <trimarchimichael@yahoo.it> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-22	sh: Provide _PAGE_SPECIAL for 32-bit.	Paul Mundt	1	-4/+10
	Allocate one of the unused PTE bits for _PAGE_SPECIAL directly. This is prep work for fast gup and the zero page revival. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-29	sh: migrate to arch/sh/include/	Paul Mundt	1	-0/+479
	This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>