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(parent: 71a6fa1) | patch
powerpc/85xx: add hardware automatically enter altivec idle state
authorWang Dongsheng <dongsheng.wang@freescale.com>
Tue, 17 Dec 2013 08:17:00 +0000 (16:17 +0800)
committerScott Wood <scottwood@freescale.com>
Wed, 8 Jan 2014 01:39:48 +0000 (19:39 -0600)
commit202e059ce34d5c5e3ff8a542866c280d575ccb17
tree60ee3dd035e0889cd1bb5e7b57879331fc5d11aatree | snapshot
parent71a6fa17e1526d3f26f4711cc55d339f96c49a95commit | diff
powerpc/85xx: add hardware automatically enter altivec idle state

Each core's AltiVec unit may be placed into a power savings mode
by turning off power to the unit. Core hardware will automatically
power down the AltiVec unit after no AltiVec instructions have
executed in N cycles. The AltiVec power-control is triggered by hardware.

Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
arch/powerpc/kernel/cpu_setup_fsl_booke.S diff | blob | history
Domain: System / Kernel;