Re: auxv + neon

2011-09-07 Thread Dave Martin
On Tue, Sep 06, 2011 at 02:47:48PM +0100, David Gilbert wrote: > On 6 September 2011 14:38, Mans Rullgard wrote: > > > I have an old kernel patch somewhere that allows userspace to read the > > ID register > > by emulating the relevant MRC in the illegal instruction trap handler.   > > Perhaps >

Re: auxv + neon

2011-09-07 Thread Dave Martin
On Tue, Sep 06, 2011 at 04:24:32PM +0100, Peter Maydell wrote: > On 6 September 2011 16:09, Andy Doan wrote: > > On 09/05/2011 11:35 AM, Christian Robottom Reis wrote: > >> On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: > >>> 2011/9/3 Tom Gall : > Is a method via the aux vectors t

Re: auxv + neon

2011-09-06 Thread Christian Robottom Reis
On Tue, Sep 06, 2011 at 02:39:21PM -0500, Andy Doan wrote: > > b. Have a subsection with a "NEON Detection Code" heading with the > > code you've included. > > > > Consider also David/Dave's thread about CPU ID detection; does that fit > > into a more general page? > > That part of th

Re: auxv + neon

2011-09-06 Thread Andy Doan
On 09/06/2011 12:37 PM, Christian Robottom Reis wrote: > On Tue, Sep 06, 2011 at 10:09:19AM -0500, Andy Doan wrote: >> On 09/05/2011 11:35 AM, Christian Robottom Reis wrote: >>> On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: 2011/9/3 Tom Gall : > Is a method via the aux vectors

Re: auxv + neon

2011-09-06 Thread Christian Robottom Reis
On Tue, Sep 06, 2011 at 10:09:19AM -0500, Andy Doan wrote: > On 09/05/2011 11:35 AM, Christian Robottom Reis wrote: > > On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: > >> 2011/9/3 Tom Gall : > >>> Is a method via the aux vectors to know at runtime if neon is or is > >>> not present? >

Re: auxv + neon

2011-09-06 Thread Andy Doan
On 09/06/2011 10:24 AM, Peter Maydell wrote: > On 6 September 2011 16:09, Andy Doan wrote: >> On 09/05/2011 11:35 AM, Christian Robottom Reis wrote: >>> On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: 2011/9/3 Tom Gall : > Is a method via the aux vectors to know at runtime if n

Re: auxv + neon

2011-09-06 Thread Peter Maydell
On 6 September 2011 16:09, Andy Doan wrote: > On 09/05/2011 11:35 AM, Christian Robottom Reis wrote: >> On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: >>> 2011/9/3 Tom Gall : Is a method via the aux vectors to know at runtime if neon is or is not present? >>> >>> hi Tom, >>>

Re: auxv + neon

2011-09-06 Thread Andy Doan
On 09/05/2011 11:35 AM, Christian Robottom Reis wrote: > On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: >> 2011/9/3 Tom Gall : >>> Is a method via the aux vectors to know at runtime if neon is or is >>> not present? >> >> hi Tom, >> >> Did you mean this? >> https://bugs.meego.com/sh

Re: auxv + neon

2011-09-06 Thread Mans Rullgard
On 6 September 2011 14:47, David Gilbert wrote: > On 6 September 2011 14:38, Mans Rullgard wrote: > >> I have an old kernel patch somewhere that allows userspace to read the >> ID register >> by emulating the relevant MRC in the illegal instruction trap handler.   >> Perhaps >> this is something

Re: auxv + neon

2011-09-06 Thread David Gilbert
On 6 September 2011 14:38, Mans Rullgard wrote: > I have an old kernel patch somewhere that allows userspace to read the > ID register > by emulating the relevant MRC in the illegal instruction trap handler.   > Perhaps > this is something worth reviving.  With this approach, interpreting the ID

Re: auxv + neon

2011-09-06 Thread Mans Rullgard
On 6 September 2011 13:28, David Gilbert wrote: > On 6 September 2011 13:23, Kurt Taylor wrote: > >>> > Did you mean this? >>> >     https://bugs.meego.com/show_bug.cgi?id=12448 >>> >>> The recipe in step #1 is probably a good candidate for a FAQ on "How do >>> I tell what features the ARM CPU on

Re: auxv + neon

2011-09-06 Thread David Gilbert
On 6 September 2011 13:23, Kurt Taylor wrote: >> > Did you mean this? >> >     https://bugs.meego.com/show_bug.cgi?id=12448 >> >> The recipe in step #1 is probably a good candidate for a FAQ on "How do >> I tell what features the ARM CPU on my device has?". > > Yes, and might be a good topic for

Re: auxv + neon

2011-09-06 Thread Kurt Taylor
On 5 September 2011 11:35, Christian Robottom Reis wrote: > On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: > > 2011/9/3 Tom Gall : > > > Is a method via the aux vectors to know at runtime if neon is or is > > > not present? > > > > hi Tom, > > > > Did you mean this? > > https://bu

Re: auxv + neon

2011-09-05 Thread Christian Robottom Reis
On Sat, Sep 03, 2011 at 09:10:58PM +0800, Jim Huang wrote: > 2011/9/3 Tom Gall : > > Is a method via the aux vectors to know at runtime if neon is or is > > not present? > > hi Tom, > > Did you mean this? > https://bugs.meego.com/show_bug.cgi?id=12448 The recipe in step #1 is probably a good

Re: auxv + neon

2011-09-03 Thread Tom Gall
Perfect! Thanks Jim! On Sat, Sep 3, 2011 at 8:10 AM, Jim Huang wrote: > 2011/9/3 Tom Gall : >> Is a method via the aux vectors to know at runtime if neon is or is >> not present? > > hi Tom, > > Did you mean this? >    https://bugs.meego.com/show_bug.cgi?id=12448 > > Regards, > -jserv > -- R

Re: auxv + neon

2011-09-03 Thread Jim Huang
2011/9/3 Tom Gall : > Is a method via the aux vectors to know at runtime if neon is or is > not present? hi Tom, Did you mean this? https://bugs.meego.com/show_bug.cgi?id=12448 Regards, -jserv ___ linaro-dev mailing list linaro-dev@lists.linaro.or