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authorGravatar Peter Korsgaard <peter@korsgaard.com>2016-12-11 16:52:19 +0100
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2016-12-11 18:23:21 +0100
commit643a21b326ed9b562560d8629501725ea53f86d8 (patch)
tree929d642851d24f2f576172e02034dc87a44d1420 /package/jpeg
parent3031af7ea7f5730bb1d4d60b0ee3c854622fef9b (diff)
downloadbuildroot-643a21b326ed9b562560d8629501725ea53f86d8.tar.gz
buildroot-643a21b326ed9b562560d8629501725ea53f86d8.tar.bz2
jpeg-turbo: add simd support for aarch64
>From the 1.5-b1 release notes: Added ARM 64-bit (ARMv8) NEON SIMD implementations of the commonly-used compression algorithms (including the slow integer forward DCT and h2v2 & h2v1 downsampling algorithms, which are not accelerated in the 32-bit NEON implementation.) This speeds up the compression of full-color JPEGs by about 75% on average on a Cavium ThunderX processor and by about 2-2.5x on average on Cortex-A53 and Cortex-A57 cores. Add it unconditionally for all aarch64 cores, as neon support is required for all "standard" ARMv8 implementations. If an ARMv8 implementation w/o NEON ever shows up, then we will need to add a BR2_AARCH64_CPU_HAS_NEON and handle it like ARM. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'package/jpeg')
-rw-r--r--package/jpeg/Config.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/package/jpeg/Config.in b/package/jpeg/Config.in
index e2a3fd0e35..2bcf40591b 100644
--- a/package/jpeg/Config.in
+++ b/package/jpeg/Config.in
@@ -8,6 +8,7 @@ config BR2_PACKAGE_JPEG_SIMD_SUPPORT
bool
default y if BR2_X86_CPU_HAS_MMX || BR2_ARM_CPU_HAS_NEON || \
BR2_POWERPC_CPU_HAS_ALTIVEC
+ BR2_aarch64 || BR2_aarch64_be
if BR2_PACKAGE_JPEG