[Buildroot] [git commit] arch/Config.in.arm: Add BR2_ARM_CPU_HAS_NEON similar to how mmx/sse is handled on x86
From: Peter Korsgaard <jacmet@sunsite.dk>
Date: 2012-12-13 22:25:53
Subsystem:
the rest · Maintainer:
Linus Torvalds
commit: http://git.buildroot.net/buildroot/commit/?id=f9da98c85d661578e0f40d81fac53aa65bd08fbb branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master NEON support is optional on A5/A9, so let the user choose if SoC has it / wants to use it. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> --- arch/Config.in.arm | 21 +++++++++++++++++++++ 1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/Config.in.arm b/arch/Config.in.arm
index b65b4ac..806b196 100644
--- a/arch/Config.in.arm
+++ b/arch/Config.in.arm@@ -1,3 +1,11 @@ +# arm cpu features +config BR2_ARM_CPU_HAS_NEON + bool + +# for some cores, NEON support is optional +config BR2_ARM_CPU_MAYBE_HAS_NEON + bool + choice prompt "Target Architecture Variant" depends on BR2_arm || BR2_armeb
@@ -31,12 +39,16 @@ config BR2_arm1176jzf_s bool "arm1176jzf-s" config BR2_cortex_a5 bool "cortex-A5" + select BR2_ARM_CPU_MAYBE_HAS_NEON config BR2_cortex_a8 bool "cortex-A8" + select BR2_ARM_CPU_HAS_NEON config BR2_cortex_a9 bool "cortex-A9" + select BR2_ARM_CPU_MAYBE_HAS_NEON config BR2_cortex_a15 bool "cortex-A15" + select BR2_ARM_CPU_HAS_NEON config BR2_sa110 bool "sa110" config BR2_sa1100
@@ -64,6 +76,15 @@ config BR2_ARM_OABI depends on !BR2_GCC_VERSION_4_7_X endchoice +config BR2_ARM_ENABLE_NEON + bool "Enable NEON SIMD extension support" + depends on BR2_ARM_CPU_MAYBE_HAS_NEON + select BR2_ARM_CPU_HAS_NEON + help + For some CPU cores, the NEON SIMD extension is optional. + Select this option if you are certain your particular + implementation has NEON support and you want to use it. + config BR2_ARCH default "arm" if BR2_arm default "armeb" if BR2_armeb