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* hexagon/mm/vm_fault.c: Port OOM changes to do_page_faultKautuk Consul2012-05-231-5/+17
| | | | | | | | | | | | | | | | | | 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 <consul.kautuk@gmail.com> Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
* Hexagon: Add configuration and makefiles for the Hexagon architecture.Richard Kuo2011-11-011-0/+6
| | | | | | | Signed-off-by: Linas Vepstas <linas@codeaurora.org> Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Hexagon: Add page-fault support.Richard Kuo2011-11-012-0/+463
| | | | | | | Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Signed-off-by: Linas Vepstas <linas@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Hexagon: Add page table header files & etc.Richard Kuo2011-11-011-0/+23
| | | | | | | Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Signed-off-by: Linas Vepstas <linas@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Hexagon: Add ioremap supportRichard Kuo2011-11-011-0/+56
| | | | | | Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Hexagon: Implement basic TLB management routines for Hexagon.Richard Kuo2011-11-011-0/+93
| | | | | | | | Mostly all stubs, as the TLB is managed by the hypervisor. Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Hexagon: Implement basic cache-flush supportRichard Kuo2011-11-011-0/+128
| | | | | | Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Hexagon: Add user access functionsRichard Kuo2011-11-015-0/+589
Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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