lkml.org 
[lkml]   [2018]   [Aug]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH 3/5] RISC-V: Add cpu_operatios structure
On Wed, Aug 22, 2018 at 08:54:51PM +0530, Anup Patel wrote:
> IMHO, rather than waiting for new CPU ON/OFF methods to come-up we
> can keep the cpu_operations ready. Also, we are not re-inventing anything
> here which we might have to discard later because cpu_operations are
> already tried and hardened for Linux ARM64.

Which is a different cpu architecture, and has shown to actually need
it. IFF we end up needing it on riscv we can still copy and paste
it from AMD64.


> I agree with you that in long-term SBI-based CPU ON/OFF will be widely
> used. Most likely we will have at-least two CPU ON/OFF methods:
> 1. Existing lottery based spinning
> 2. New SBI calls

And in this most likely case there is no need for an ops vector,
a simple if/else will be much simpler and cleaner.

\
 
 \ /
  Last update: 2018-08-23 15:38    [W:0.041 / U:0.404 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site