subject:"\[PATCH v5 12\/30\] arm64\/sve\: Low\-level CPU setup"

Re: [PATCH v5 12/30] arm64/sve: Low-level CPU setup

2017-11-08 Thread Alex Bennée

Dave Martin writes: > To enable the kernel to use SVE, SVE traps from EL1 to EL2 must be > disabled. To take maximum advantage of the hardware, the full > available vector length also needs to be enabled for EL1 by > programming ZCR_EL2.LEN. (The kernel will program

[PATCH v5 12/30] arm64/sve: Low-level CPU setup

2017-10-31 Thread Dave Martin

To enable the kernel to use SVE, SVE traps from EL1 to EL2 must be disabled. To take maximum advantage of the hardware, the full available vector length also needs to be enabled for EL1 by programming ZCR_EL2.LEN. (The kernel will program ZCR_EL1.LEN as required, but this cannot override the