[lkml]   [2013]   [Sep]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v4] powerpc 8xx: Fixing issue with CONFIG_PIN_TLB
On Tue, 2013-09-24 at 10:18 +0200, Christophe Leroy wrote:
> Activating CONFIG_PIN_TLB is supposed to pin the IMMR and the first three
> 8Mbytes pages. But the setting of MD_CTR to a pinnable entry was missing before
> the pinning of the third 8Mb page. As the index is decremented module 28
> (MD_RSV4D is set) after every DTLB update, the third 8Mbytes page was
> not pinned.

The examples you showed weren't quite modulo 28, more like "if (x >= 28)
x -= 4". I'll fix up the changelog on applying, to read something like
"As the index is decremented to a value within the first 28 entries
(MD_RSV4D is set)...".


 \ /
  Last update: 2013-09-28 00:01    [W:0.026 / U:3.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site