lkml.org 
[lkml]   [2008]   [Jul]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] x86_64: Dynamically allocate arch specific system vectors
Alan Mayer <ajm@sgi.com> writes:

> Subject: [PATCH] x86_64: Dynamically allocate arch specific system vectors
>
> From: Alan Mayer <ajm@sgi.com>
>
> On some systems (e. g., UV) it is necessary to use an interrupt vector
> as a "system" vector, that is, it is generated by system hardware, not an
> IO device. This patch dynamically allocates them from the pool of interrupt
> vectors below the fixed system vectors. This may include stealing some from
> the device interrupt vector pool, so they are allocated dynamically so that
> other archs don't have to pay the price. In UV, examples of these hardware
> and software systems that need dynamically allocated vectors are the GRU,
> the BAU, and XPM/XPC.

Could you please explain words why the vector allocator does not work
for you?

This code at first glance looks a lot like duplicating the vector allocator.

Eric


\
 
 \ /
  Last update: 2008-08-01 00:17    [W:0.102 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site