08 Sep, 2009

1 commit

• a2494b9b5   sh: Kill off dcache writeback from copy_page(). ... Browse Code »

  Now that the cache purging is handled manually by all copy_page()
  callers, we can kill off copy_page()'s on writeback. This optimizes the
  non-aliasing case.

  Signed-off-by: Paul Mundt

  Paul Mundt

  2009-09-08 15:23:08 +0800  

13 Nov, 2008

1 commit

• 5d52013cb   sh: __copy_user function can corrupt the stack in case of exception ... Browse Code »

  The __copy_user function can corrupt the stack in the case of a
  non-trivial length of data, and either of the first two move instructions
  cause an exception. This is because the fixup for these two instructions
  is mapped to the no_pop case, but these instructions execute after the
  stack is pushed.

  This change creates an explicit NO_POP exception mapping macro, and uses
  it for the two instructions executed in the trivial case where no stack
  pushes occur.

  More information at ST Linux bugzilla:

  https://bugzilla.stlinux.com/show_bug.cgi?id=4824

  Signed-off-by: Dylan Reid
  Signed-off-by: Stuart Menefy
  Signed-off-by: Paul Mundt

  Stuart MENEFY

  2008-11-13 16:40:30 +0800  

19 Apr, 2008

1 commit

• 5c0cbd74b   sh: Allow optimized clear/copy page routines to be used on SH-2. ... Browse Code »

  Presently these are restricted to SH-3 and SH-4, so we reorder the
  ifdefs a bit to let other parts use these also.

  Signed-off-by: Paul Mundt

  Paul Mundt

  2008-04-19 00:50:02 +0800  

28 Jan, 2008

2 commits

• 325df7f20   sh: Explicit alignment for PAGE_SIZE in copy/clear_page(). ... Browse Code »

  Signed-off-by: Paul Mundt

  Paul Mundt

  2008-01-28 12:18:58 +0800  
• 9895f9429   sh: clear/copy_page renames in lib and lib64. ... Browse Code »

  Signed-off-by: Paul Mundt

  Paul Mundt

  2008-01-28 12:18:54 +0800