osmo-trx.git branch pmaier/cpudetect updated. 09349e913cf640acef7444eae800732693ff30e9

gitosis at osmocom.org gitosis at osmocom.org
Thu Mar 23 13:54:52 UTC 2017

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The branch, pmaier/cpudetect has been updated
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commit 09349e913cf640acef7444eae800732693ff30e9
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Mon Mar 20 12:08:42 2017 +0100

    buildenv: Split up SSE3 and SSE4.1 code
    Currently we find SSE3 and SSE4.1 code mixed togehter along with
    generic code in one file. This introduces the risk that the
    compiler exidantly mixes SSE4.1 instructions into an SSE3, or
    even worse into a generic code path.
    This commit splits the SSE3 and SSE4.1 code into separate files
    and compiles them with the matching target options.
    Change-Id: I846e190e92f1258cd412d1b2d79b539e204e04b3


commit 31a9a52d1e2fb24cb4566b0cc1963f170d24d821
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Thu Mar 16 18:43:33 2017 +0100

    Add test program to verify convolution implementation
    Convolution is a complex process and we should be able to verify
    if computing results change when the implementation is touched.
    This commit adds a test program that executes some testcases.
    The testcases are crafted in a way that every implmentation
    (several different ones for SSE) is executed once. The output
    can be compared against the included .ok file.
    Change-Id: Ic702ecb356c652fbcd76bee689717fb5d3526fe9


commit 04d1d0cdb4ab576bdbf813c0d0b85094c99bf7d1
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Thu Mar 16 14:50:25 2017 +0100

    cosmetic: remove code duplication
    The ARM and the X86 implementation of the conversion functions share
    the same, non cpu specific implementation in separate files.
    This commit removes the code duplication by putting the generic
    implementation into a convert_base.c, similar to to convolve_base.c
    Change-Id: Ic8d8534a343e27cde79ddc85be4998ebd0cb6e5c


commit f62a99668de8d6fba551319e74cf9bab09d7982c
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Thu Mar 16 13:12:07 2017 +0100

    buildenv: Make build CPU invariant
    Currently the build environment checks which extension the current
    CPU supports and picks the compiler flags accordingly.
    If the build is happening on a machine that does not support the
    extensions we need (SSE3, SSE4.1), the binary will lack those
    extensions, even if its intended to be used on a more powerful
    machine that would support the extensions.
    This commit removes the CPU tests from the build process.
    Change-Id: Ic913aa13c23c348ae62e78c9dfd6ed8b0a62798c


commit 380728737dbea056699297c7608c5ea25122d920
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Thu Mar 16 12:09:34 2017 +0100

    cosmetic: Add info about SSE support
    The osmo-trx binary outputs no info about its SSE support status.
    This commits adds some putput that informs about the SSE of the
    binary and also tells which of the SSE levels the CPU supports.
    Change-Id: Iacc83fd668c31644e0efb3e18962cf2870ed1daf


commit 58ecaf764892e923df287d8f54c563f147467cd7
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Wed Mar 15 18:09:35 2017 +0100

    ssedetect: Add runtime CPU detection
    The current implementation can select the SSE support level during
    compiletime only.
    This commit adds functionality to automatically detect and switch
    the SSE support level and automatically switch the Implementation
    if the CPU does not support the required SSE level.
    Change-Id: Iba74f8a6e4e921ff31e4bd9f0c7c881fe547423a


commit 499ad2601b16163941c4f80f72a650834051266d
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Wed Mar 15 12:39:25 2017 +0100

    cosmetic: Make parameter lists uniform
    The non-sse implementation and the sse implementation of the convert
    and convolve functions have different parameter lists. This makes it
    difficult to use function pointers in order to select the right
    function depending on the SSE-Level and CPU.
    This commit uniformizes the parameter lists in preparation for
    planned runtime cpu detection support
    Change-Id: Ice063b89791537c4b591751f12f5ef5c413a2d27


commit 81536e7d5cbd65934280e177cf5e560df1ec9e30
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Tue Mar 14 15:29:38 2017 +0100

    buildenv: Turn off native architecture builds
    The compiler option -march=native instructs the compiler to auto-optimize
    the code for the current build architecture. This is fine for building
    and using locally, but contraproductive when generating binary packages.
    This commit replaces -march=native with $(SIMD_FLAGS), which contains a
    collection of supported SIMD options, so we won't loose the SSE support.
    Change-Id: I3df4b8db9692016115edbe2247beeec090715687


Summary of changes:
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

OpenBTS' transceiver retro-fit

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