[PATCH 1/3] ARM: shmobile: defconfig: Do not enable CONFIG_CPU_BPREDICT_DISABLE
From: Simon Horman <hidden>
Date: 2016-02-02 15:23:02
Subsystem:
arm port, arm/risc-v/renesas architecture, the rest · Maintainers:
Russell King, Geert Uytterhoeven, Magnus Damm, Linus Torvalds
From: Geert Uytterhoeven <geert+renesas@glider.be> Do not disable branch prediction, as this has a big performance impact. After re-enabling branch prediction, __loop_delay() runs 16 (Cortex A15) or 11 (Cortex A9) times faster than before. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <redacted> --- arch/arm/configs/shmobile_defconfig | 1 - 1 file changed, 1 deletion(-)
diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 969738324a5d..5208b5caacd1 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig@@ -20,7 +20,6 @@ CONFIG_ARCH_R8A7791=y CONFIG_ARCH_R8A7793=y CONFIG_ARCH_R8A7794=y CONFIG_ARCH_SH73A0=y -CONFIG_CPU_BPREDICT_DISABLE=y CONFIG_PL310_ERRATA_588369=y CONFIG_ARM_ERRATA_754322=y CONFIG_PCI=y
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2.7.0.rc3.207.g0ac5344