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8 Commits

Author SHA1 Message Date
Kautuk Consul
393a86af71 hexagon/mm/vm_fault.c: Port OOM changes to do_page_fault 
Commit d065bd810b
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525
(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>
 2012-05-22 18:40:45 -05:00
Richard Kuo
e95bf452a9 Hexagon: Add configuration and makefiles for the Hexagon architecture. 
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>
 2011-11-01 07:34:21 -07:00
Richard Kuo
499236d9db Hexagon: Add page-fault support. 
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>
 2011-11-01 07:34:20 -07:00
Richard Kuo
a7e7984099 Hexagon: Add page table header files & etc. 
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>
 2011-11-01 07:34:20 -07:00
Richard Kuo
b7f3785fbb Hexagon: Add ioremap support 
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2011-11-01 07:34:20 -07:00
Richard Kuo
5df87c1556 Hexagon: Implement basic TLB management routines for Hexagon. 
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>
 2011-11-01 07:34:20 -07:00
Richard Kuo
2d3cbc7804 Hexagon: Implement basic cache-flush support 
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2011-11-01 07:34:20 -07:00
Richard Kuo
7567746e1c Hexagon: Add user access functions 
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2011-11-01 07:34:20 -07:00