On 02/01/2015 12:55 AM, Maxim Kuvyrkov wrote:
Hi,It turned out that the values for PARAM_SCHED_AUTOPREF_QUEUE_DEPTH that I initially selected were unfortunate. The value of "-1" is special in parameter handling code, and it can't be used on command line. This makes it impossible to disable scheduler autoprefetcher from command line ("-1" corresponds to "disable autoprefetcher model"). This patch shifts the set of a allowed values for PARAM_SCHED_AUTOPREF_QUEUE_DEPTH by +1, so that the "disable" value is "0". OK for stage 1? Tested on arm-linux-gnueabihf, and I will bootstrap and test the patch on trunk before committing. Thank you, -- Maxim Kuvyrkov www.linaro.org 0002-Support-disabling-of-sched-autoprefetcher-from-comma.patch From b86515013dec067419d16d11c138ba8b74ede1c5 Mon Sep 17 00:00:00 2001 From: Maxim Kuvyrkov<maxim.kuvyr...@linaro.org> Date: Sun, 18 Jan 2015 13:22:56 +0000 Subject: [PATCH 2/2] Support disabling of sched autoprefetcher from command line * config/arm/arm.c (arm_cortex_a15_tune, arm_cortex_a57_tune): Update. * haifa-sched.c: Increase values for PARAM_SCHED_AUTOPREF_QUEUE_DEPTH by +1 throughout. (rank_for_schedule, autopref_multipass_dfa_lookahead_guard): Update. * params.def (PARAM_SCHED_AUTOPREF_QUEUE_DEPTH): Update.
OK once the final bootstrap and testing are complete. Jeff
