[PATCH v3 0/4] ARM: pxa: Fix out of vmalloc space bug

Nicolas Pitre nicolas.pitre at linaro.org
Wed Apr 9 12:05:26 PDT 2014


On Wed, 9 Apr 2014, Laurent Pinchart wrote:

> Hello,
> 
> (Resending due to a typo in an e-mail address that caused LAKML to reject the
> mails. Sorry about the noise.)
> 
> This patch set reworks Ezequiel Garcia's previous fix [1] of an out of vmalloc
> space bug on PXA2[57]x platforms caused by an attempt to map the start of
> physical uncached outside of the vmalloc space.
> 
> This first three patches perform a couple of cleanups, and the last patch
> fixes the problem. I've decided to map the memory at address 0xfe000000 to
> minimize changes to the code, but this causes a bit of fragmentation of
> vmalloc space. I could map it to the very end of vmalloc space (0xfef00000)
> instead if preferred, which would involve replacing a mov by an ldr in
> pxa2[57]x_finish_suspend and pm_enter_standby_start.
> 
> I've tested the patch set on a PXA270-based system.

For those patches:

Acked-by: Nicolas Pitre <nico at linaro.org>



> 
> [1] https://lkml.org/lkml/2013/11/28/474
> 
> Ezequiel Garcia (1):
>   ARM: pxa: Move iotable mapping inside vmalloc region
> 
> Laurent Pinchart (3):
>   ARM: pxa: Don't hardcode addresses and size in map_desc tables
>   ARM: pxa: Move UNCACHED_PHYS_0 mapping from generic.c to pxa2[57]x.c
>   ARM: pxa: pxa27x: Don't map IMEMC region statically
> 
>  arch/arm/mach-pxa/generic.c               | 11 +++--------
>  arch/arm/mach-pxa/include/mach/hardware.h |  4 ++--
>  arch/arm/mach-pxa/pxa25x.c                |  7 ++++++-
>  arch/arm/mach-pxa/pxa27x.c                | 10 +++++-----
>  arch/arm/mach-pxa/pxa3xx.c                |  2 +-
>  5 files changed, 17 insertions(+), 17 deletions(-)
> 
> -- 
> Regards,
> 
> Laurent Pinchart
> 
> 
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