| Commit message (Collapse) | Author | Age | Files | Lines |
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As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.
Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
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The implementation is divided in two files, as it used to be in the
previous implementation: one for ARMv5, one for ARMv6 and up.
For the ARMv5 implementation:
Drop the non-Linux EABI version of the atomics, as it's not
ABI-compatible with the ARMv6 and ARMv7 implementations. This
means this ARMv5 implementation only works on Linux. If other
systems implement kernel helpers like Linux, they can be added
too.
We use the __kernel_cmpxchg located at 0xffff0fc0 to implement the
operations, except for fetchAndStore, for which we use the SWP
instruction.
Also introduce the use of __kernel_dmb (at 0xffff0fa0) for the
memory barrier. Now this code is SMP-safe even when built with
ARMv5.
The kernel cmpxchg helper was introduced in Linux 2.6.12, whereas
the dmb helper was introduced in 2.6.15. That means 2.6.15 is the
minimum version now.
For ARMv6 and up:
Introduce byte, half-word and doubleword atomics that work on
ARMv6K and up.
For ARMv6 specifically, the memory barrier instruction (DMB) isn't
present, so we need to accomplish the same with the MCR
coprocessor instruction.
Change-Id: Ife7f9b920bcc7d1eef7611761f6c59ea940ec7df
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Replace Nokia contact email address with Qt Project website.
Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
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Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
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Task-number: QTBUG-16402
Rubber-stamped-by: Thiago Macieira
(cherry picked from commit 6be1b235f7db38146f7080a4bfcfe3051ae54699)
Change-Id: I6f60f1d3079395e765a183961db5c8543cf58cdc
Reviewed-on: http://codereview.qt.nokia.com/3078
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Eckhart Koppen <eckhart.koppen@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
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Updated version of LGPL and FDL licenseheaders.
Apply release phase licenseheaders for all source files.
Reviewed-by: Trust Me
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This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:
http://qt.gitorious.org/qt/pages/GitIntroductionWithQt
If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.
Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
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