04 Nov, 2010
1 commit
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The SWP instruction was deprecated in the ARMv6 architecture,
superseded by the LDREX/STREX family of instructions for
load-linked/store-conditional operations. The ARMv7 multiprocessing
extensions mandate that SWP/SWPB instructions are treated as undefined
from reset, with the ability to enable them through the System Control
Register SW bit.This patch adds the alternative solution to emulate the SWP and SWPB
instructions using LDREX/STREX sequences, and log statistics to
/proc/cpu/swp_emulation. To correctly deal with copy-on-write, it also
modifies cpu_v7_set_pte_ext to change the mappings to priviliged RO when
user RO.Signed-off-by: Leif Lindholm
Acked-by: Catalin Marinas
Acked-by: Kirill A. Shutemov
Signed-off-by: Russell King
07 Oct, 2010
1 commit
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Signed-off-by: Gregory Bean
Signed-off-by: Daniel Walker
14 Apr, 2010
1 commit
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Reviewed-by: Linus Walleij
Signed-off-by: Viresh Kumar
Signed-off-by: Russell King
13 Oct, 2007
1 commit
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Add several missing entries to Documentation/arm/00-INDEX
Signed-off-by: Rob Landley
Signed-off-by: Russell King
05 Dec, 2005
1 commit
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Signed-off-by: Russell King
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
