From: Sandrine Bailleux Date: Tue, 9 Feb 2016 17:01:37 +0000 (+0000) Subject: Cortex-A57: Add link to software optimization guide X-Git-Url: http://git.openwrt.org/%22https:/collectd.org//%22http:/www.crowdsec.net/%22/%22https:/collectd.org/%22http:/www.crowdsec.net/%22?a=commitdiff_plain;h=d1b2b203a7b98ed69a035e4a096f7ea413009e04;p=project%2Fbcm63xx%2Fatf.git Cortex-A57: Add link to software optimization guide This patch adds a link to the Cortex-A57 Software Optimization Guide in the ARM CPU Specific Build Macros document to justify the default value of the A57_DISABLE_NON_TEMPORAL_HINT build flag. Change-Id: I9779e42a4bb118442b2b64717ce143314ec9dd16 --- diff --git a/docs/cpu-specific-build-macros.md b/docs/cpu-specific-build-macros.md index e7185aa4..c57dc7ee 100644 --- a/docs/cpu-specific-build-macros.md +++ b/docs/cpu-specific-build-macros.md @@ -85,8 +85,12 @@ architecture that can be enabled by the platform as desired. * `A57_DISABLE_NON_TEMPORAL_HINT`: This flag has the same behaviour as `A53_DISABLE_NON_TEMPORAL_HINT` but for Cortex-A57. This needs to be - enabled only for revisions <= r1p2 of the CPU and is enabled by default. + enabled only for revisions <= r1p2 of the CPU and is enabled by default, + as recommended in section "4.7 Non-Temporal Loads/Stores" of the + [Cortex-A57 Software Optimization Guide][A57 SW Optimization Guide]. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _Copyright (c) 2014-2016, ARM Limited and Contributors. All rights reserved._ + +[A57 SW Optimization Guide]: http://infocenter.arm.com/help/topic/com.arm.doc.uan0015b/Cortex_A57_Software_Optimization_Guide_external.pdf