08 May, 2010

1 commit

• e814d826d   ARM: 6110/1: Fix Thumb-2 kernel builds when UACCESS_WITH_MEMCPY is enabled ... Browse Code »

  The patch adds the ENDPROC declarations for the __copy_to_user_std and
  __clear_user_std functions. Without these, the compiler generates BXL to
  ARM when compiling the kernel in Thumb-2 mode.

  Reported-by: Kyungmin Park
  Tested-by: Kyungmin Park
  Signed-off-by: Catalin Marinas
  Acked-by: Nicolas Pitre
  Signed-off-by: Russell King

  Catalin Marinas

  2010-05-08 17:45:26 +0800  

21 Apr, 2010

1 commit

• 4260415f6   ARM: fix build error in arch/arm/kernel/process.c ... Browse Code »

  /tmp/ccJ3ssZW.s: Assembler messages:
  /tmp/ccJ3ssZW.s:1952: Error: can't resolve `.text' {.text section} - `.LFB1077'

  This is caused because:

  .section .data
  .section .text
  .section .text
  .previous

  does not return us to the .text section, but the .data section; this
  makes use of .previous dangerous if the ordering of previous sections
  is not known.

  Fix up the other users of .previous; .pushsection and .popsection are
  a safer pairing to use than .section and .previous.

  Signed-off-by: Russell King

  Russell King

  2010-04-21 15:45:21 +0800  

24 Jul, 2009

1 commit

• 8b592783a   Thumb-2: Implement the unified arch/arm/lib functions ... Browse Code »

  This patch adds the ARM/Thumb-2 unified support for the arch/arm/lib/*
  files.

  Signed-off-by: Catalin Marinas

  Catalin Marinas

  2009-07-24 19:32:57 +0800  

30 May, 2009

1 commit

• a1f98849f   [ARM] allow for alternative __copy_to_user/__clear_user implementations ... Browse Code »

  This allows for optional alternative implementations of __copy_to_user
  and __clear_user, with a possible runtime fallback to the standard
  version when the alternative provides no gain over that standard
  version. This is done by making the standard __copy_to_user into a weak
  alias for the symbol __copy_to_user_std. Same thing for __clear_user.

  Those two functions are particularly good candidates to have alternative
  implementations for, since they rely on the STRT instruction which has
  lower performances than STM instructions on some CPU cores such as
  the ARM1176 and Marvell Feroceon.

  Signed-off-by: Nicolas Pitre

  Nicolas Pitre

  2009-05-30 10:34:45 +0800  

01 Sep, 2008

1 commit

• 93ed39701   [ARM] 5227/1: Add the ENDPROC declarations to the .S files ... Browse Code »

  This declaration specifies the "function" type and size for various
  assembly functions, mainly needed for generating the correct branch
  instructions in Thumb-2.

  Signed-off-by: Catalin Marinas
  Signed-off-by: Russell King

  Catalin Marinas

  2008-09-01 19:06:34 +0800  

29 Jun, 2006

1 commit

• 02fcb9743   [ARM] Remove the __arch_* layer from uaccess.h ... Browse Code »

  Back in the days when we had armo (26-bit) and armv (32-bit) combined,
  we had an additional layer to the uaccess macros to ensure correct
  typing. Since we no longer have 26-bit in this tree, we no longer
  need this layer, so eliminate it.

  Signed-off-by: Russell King

  Russell King

  2006-06-29 00:53:27 +0800  

02 Nov, 2005

1 commit

• fadab0943   [ARM] 2948/1: new preemption safe copy_{to|from}_user implementation ... Browse Code »

  Patch from Nicolas Pitre

  This patch provides a preemption safe implementation of copy_to_user
  and copy_from_user based on the copy template also used for memcpy.
  It is enabled unconditionally when CONFIG_PREEMPT=y. Otherwise if the
  configured architecture is not ARMv3 then it is enabled as well as it
  gives better performances at least on StrongARM and XScale cores. If
  ARMv3 is not too affected or if it doesn't matter too much then
  uaccess.S could be removed altogether.

  Signed-off-by: Nicolas Pitre
  Signed-off-by: Russell King

  Nicolas Pitre

  2005-11-02 03:52:24 +0800