Re: [Qemu-devel] [PATCH v3 1/3] cutils: Set __builtin_prefetch optional parameters

2016-10-24 Thread Richard Henderson
On 10/23/2016 10:55 PM, vijay.kil...@gmail.com wrote: > From: Vijaya Kumar K > > Optional parameters of __builtin_prefetch() which specifies > rw and locality to 0's. For checking buffer is zero, set rw as read > and temporal locality to 0. > > On arm64, __builtin_prefetch(addr) generates 'prfm

[Qemu-devel] [PATCH v3 1/3] cutils: Set __builtin_prefetch optional parameters

2016-10-23 Thread vijay . kilari
From: Vijaya Kumar K Optional parameters of __builtin_prefetch() which specifies rw and locality to 0's. For checking buffer is zero, set rw as read and temporal locality to 0. On arm64, __builtin_prefetch(addr) generates 'prfmpldl1keep' where __builtin_prefetch(addr, 0, 0) generates 'prfm p