lkml.org 
[lkml]   [2010]   [Jul]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/3] arm: mm: do not set missing flags on ScorpionMP
On Wed, Jul 28, 2010 at 02:58:00PM -0700, Daniel Walker wrote:
> On Sat, 2010-07-24 at 09:23 +0100, Russell King - ARM Linux wrote:
> > On Fri, Jul 23, 2010 at 11:58:02AM -0700, Jeff Ohlstein wrote:
> > > From: Steve Muckle <smuckle@codeaurora.org>
> > >
> > > ScorpionMP does not have the SMP/nAMP mode and TLB ops
> > > broadcasting bits in the ACTLR.
> >
> > Please provide a separate instance of __v7_proc_info for your processor
> > and direct it to jump into the __v7_setup code after this setup instead.
>
>
> You mean add another label into __v7_setup along with a proc-msm.S to
> jump over this code?

Yes to the first, no to the second.

__v7_setup:
#ifdef CONFIG_SMP
mrc p15, 0, r0, c1, c0, 1
tst r0, #(1 << 6) @ SMP/nAMP mode enabled?
orreq r0, r0, #(1 << 6) | (1 << 0) @ Enable SMP/nAMP mode and
mcreq p15, 0, r0, c1, c0, 1 @ TLB ops broadcasting
#endif
__v7_msm_setup:
...

.section ".proc.info.init", #alloc, #execinstr

.type __v7_msm_proc_info, #object
__v7_msm_proc_info:
.long ...
.long ...
...
b __v7_msm_setup
...

/*
* Match any ARMv7 processor core.
*/
.type __v7_proc_info, #object
__v7_proc_info:
...



\
 
 \ /
  Last update: 2010-07-29 00:39    [W:0.150 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site