linux-toradex.git/arch/hexagon/mm, branch v3.9.4

Hexagon: Copyright marking changes

2012-10-18T22:07:21+00:00

Code Aurora Forum (CAF) is becoming a part of Linux Foundation Labs.

Signed-off-by: Richard Kuo

readahead: fault retry breaks mmap file read random detection

2012-10-09T07:22:47+00:00

.fault now can retry.  The retry can break state machine of .fault.  In
filemap_fault, if page is miss, ra->mmap_miss is increased.  In the second
try, since the page is in page cache now, ra->mmap_miss is decreased.  And
these are done in one fault, so we can't detect random mmap file access.

Add a new flag to indicate .fault is tried once.  In the second try, skip
ra->mmap_miss decreasing.  The filemap_fault state machine is ok with it.

I only tested x86, didn't test other archs, but looks the change for other
archs is obvious, but who knows :)

Signed-off-by: Shaohua Li 
Cc: Rik van Riel 
Cc: Wu Fengguang 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

hexagon/mm/vm_fault.c: Port OOM changes to do_page_fault

2012-05-22T23:40:45+00:00

Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
(x86,mm: make pagefault killable)

The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.

Port these changes to hexagon.

Signed-off-by: Kautuk Consul 
Signed-off-by: Richard Kuo

Hexagon: Add configuration and makefiles for the Hexagon architecture.

2011-11-01T14:34:21+00:00

Signed-off-by: Linas Vepstas 
Signed-off-by: Richard Kuo 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Add page-fault support.

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Signed-off-by: Linas Vepstas 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Add page table header files & etc.

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Signed-off-by: Linas Vepstas 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Add ioremap support

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Implement basic TLB management routines for Hexagon.

2011-11-01T14:34:20+00:00

Mostly all stubs, as the TLB is managed by the hypervisor.

Signed-off-by: Richard Kuo 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Implement basic cache-flush support

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Add user access functions

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds