lkml.org 
[lkml]   [2023]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [External] Re: [RFC 00/12] riscv: Introduce Pseudo NMI
Date
On Thu, Oct 26 2023 at 21:56, Xu Lu wrote:
> On Thu, Oct 26, 2023 at 7:02 AM Atish Patra <atishp@atishpatra.org> wrote:
> First, please allow me to explain that CSR_IE Pseudo NMI actually can support
> more than PMU profiling. For example, if we choose to make external major
> interrupt as NMI and use ithreshold or eithreshold in AIA to control which minor
> external interrupts can be sent to CPU, then we actually can support multiple
> minor interrupts as NMI while keeping the other minor interrupts still
> normal irqs.

What is the use case for these NMIs? Anything else than profiling is not
really possible in NMI context at all.

Thanks,

tglx

\
 
 \ /
  Last update: 2023-10-27 09:55    [W:0.208 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site