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author | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-07-25 19:03:24 +0100 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-07-27 15:45:48 +0100 |
commit | 6afd21bced6513986f27d8cbc7d83bb2d804b5b0 (patch) | |
tree | 69e2b6c2fde4c15d948f9a8f798a30926f858600 /meta/conf/machine/include/tune-cortexa8.inc | |
parent | 30ddd02277d4513e2649ed168a513205e244bcb1 (diff) | |
download | poky-6afd21bced6513986f27d8cbc7d83bb2d804b5b0.tar.gz |
Add ARM tune file overhaul based largely on work from Mark Hatle
(From OE-Core rev: 789dcb8e68a2ab9784ac10ab36815010c61af2fc)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/conf/machine/include/tune-cortexa8.inc')
-rw-r--r-- | meta/conf/machine/include/tune-cortexa8.inc | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/meta/conf/machine/include/tune-cortexa8.inc b/meta/conf/machine/include/tune-cortexa8.inc index ae5095486b..02b560cecf 100644 --- a/meta/conf/machine/include/tune-cortexa8.inc +++ b/meta/conf/machine/include/tune-cortexa8.inc | |||
@@ -1,15 +1,16 @@ | |||
1 | require conf/machine/include/arm/arch-arm.inc | 1 | DEFAULTTUNE ?= "cortexa8-neon" |
2 | 2 | ||
3 | require conf/machine/include/arm/arch-armv7a.inc | ||
3 | 4 | ||
4 | # Instead of using -mfpu=vfp[2] we can use -mfpu=neon to make use of gcc intrinsics[1] and vectorize loops with -ftree-vectorize[3] | 5 | TUNEVALID[cortexa8] = "Enable Cortex-A8 specific processor optimizations" |
5 | # [1] http://gcc.gnu.org/onlinedocs/gcc/ARM-NEON-Intrinsics.html | 6 | TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "cortexa8", "-mtune=cortex-a8", "", d)}" |
6 | # [2] http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html | ||
7 | # [3] https://support.codesourcery.com/GNUToolchain/kbentry29 | ||
8 | 7 | ||
9 | TUNE_CCARGS = "-march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp -fno-tree-vectorize" | 8 | AVAILTUNES += "cortexa8 cortexa8t" |
9 | TUNE_FEATURES_tune-cortexa8 = "${TUNE_FEATURES_tune-armv7a} cortexa8" | ||
10 | TUNE_FEATURES_tune-cortexa8t = "${TUNE_FEATURES_tune-armv7at} cortexa8" | ||
11 | TUNE_FEATURES_tune-cortexa8-neon = "${TUNE_FEATURES_tune-cortexa8} neon" | ||
10 | 12 | ||
11 | # Other potentially useful options | 13 | PACKAGE_EXTRA_ARCHS_tune-cortexa8 = "${PACKAGE_EXTRA_ARCHS_tune-armv7at}" |
12 | #-ftree-vectorize -ffast-math -fno-omit-frame-pointer | 14 | PACKAGE_EXTRA_ARCHS_tune-cortexa8t = "${PACKAGE_EXTRA_ARCHS_tune-armv7at}" |
15 | PACKAGE_EXTRA_ARCHS_tune-cortexa8-neon = "${PACKAGE_EXTRA_ARCHS_tune-armv7at-neon}" | ||
13 | 16 | ||
14 | TUNE_PKGARCH = "armv7a" | ||
15 | PACKAGE_EXTRA_ARCHS = "arm armv4 armv4t armv5te armv6 armv7 armv7a" | ||