[lkml]   [2008]   [Mar]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] [8/13] Enable the mask allocator for x86
On Sat, 8 Mar 2008, Andi Kleen wrote:

> What sparsemem reference do you mean?

Its just the use of MAX_DMA_ADDRESS in mm/sparse-vmemmap.c

> But the ZONE_DMA32 actually makes sense, but changing the semantics
> under such a large driver base isn't a good idea.

The driver base can only be the x86_64 only device drivers since the zone
is not used by any other architectures. That is fairly small AFAICT.

> It depends on the requirements of the bootmem user. Some do need
> memory <4GB, some do not. The mask allocator itself is a client in fact
> and it requires low memory of course.

The point is that it would be good to relocate as much memory allocated at
boot as possible beyond 4GB.

 \ /
  Last update: 2008-03-10 18:17    [W:0.053 / U:1.656 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site