From: Peter Korsgaard Date: Sun, 11 Dec 2016 15:52:19 +0000 (+0100) Subject: jpeg-turbo: add simd support for aarch64 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=643a21b326ed9b562560d8629501725ea53f86d8;p=buildroot.git 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 Signed-off-by: Thomas Petazzoni --- 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