From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Wed, 7 Dec 2016 10:25:21 +0100 Subject: [Buildroot] [PATCH 2/3] arch/Config.in.arm: only enable BR2_ARM_CPU_HAS_NEON for ARMv8 in 32bit mode In-Reply-To: <20161207092522.16222-1-peter@korsgaard.com> References: <20161207092522.16222-1-peter@korsgaard.com> Message-ID: <20161207092522.16222-2-peter@korsgaard.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net A number of packages use BR2_ARM_CPU_HAS_NEON to know if the target handles aarch32 neon instructions, which is only true for ARMv8 cores when they are running in 32bit mode. Notice: These cores do support neon-like instructions using a different encoding in 64bit mode (it is a required part of ARMv8, similar to the FPU). Signed-off-by: Peter Korsgaard --- arch/Config.in.arm | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/Config.in.arm b/arch/Config.in.arm index 3c47bd7..6ec6029 100644 --- a/arch/Config.in.arm +++ b/arch/Config.in.arm @@ -194,21 +194,21 @@ config BR2_cortex_a17 config BR2_cortex_a53 bool "cortex-A53" select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64 - select BR2_ARM_CPU_HAS_NEON + select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64 select BR2_ARM_CPU_HAS_FP_ARMV8 select BR2_ARM_CPU_ARMV8 select BR2_ARCH_HAS_MMU_OPTIONAL config BR2_cortex_a57 bool "cortex-A57" select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64 - select BR2_ARM_CPU_HAS_NEON + select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64 select BR2_ARM_CPU_HAS_FP_ARMV8 select BR2_ARM_CPU_ARMV8 select BR2_ARCH_HAS_MMU_OPTIONAL config BR2_cortex_a72 bool "cortex-A72" select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64 - select BR2_ARM_CPU_HAS_NEON + select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64 select BR2_ARM_CPU_HAS_FP_ARMV8 select BR2_ARM_CPU_ARMV8 select BR2_ARCH_HAS_MMU_OPTIONAL -- 2.10.2