Re: [Cbe-oss-dev] [PATCH] powerpc/cell: disable ptcal in case of kdump reboot

2008-06-11 Thread Michael Ellerman
On Wed, 2008-06-11 at 18:28 +0200, Arnd Bergmann wrote: > The ibm,cbe-start-ptcal rtas call transfers ownership > of a memory range to the hardware in order to do > periodic memory interface recalibration. > When we do a kexec, we need to get this page back, > so we don't step on the new kernel's t

Re: [Cbe-oss-dev] [PATCH] powerpc/cell: disable ptcal in case of kdump reboot

2008-06-12 Thread Arnd Bergmann
On Wednesday 11 June 2008, Michael Ellerman wrote: > On Wed, 2008-06-11 at 18:28 +0200, Arnd Bergmann wrote: > > We used to do this correctly in case of a user triggered > > kexec, but not for kdump. > > Used to? Sorry, wrong wording. I meant without this patch, it's correct for kexec. > > This

Re: [Cbe-oss-dev] [PATCH] powerpc/cell: disable ptcal in case of kdump reboot

2008-06-12 Thread Michael Neuling
In message <[EMAIL PROTECTED]> you wrote: > On Wednesday 11 June 2008, Michael Ellerman wrote: > > On Wed, 2008-06-11 at 18:28 +0200, Arnd Bergmann wrote: > > > We used to do this correctly in case of a user triggered > > > kexec, but not for kdump. > > > > Used to? > > Sorry, wrong wording. I me

Re: [Cbe-oss-dev] [PATCH] powerpc/cell: disable ptcal in case of kdump reboot

2008-06-12 Thread Michael Ellerman
On Thu, 2008-06-12 at 18:06 +1000, Michael Neuling wrote: > In message <[EMAIL PROTECTED]> you wrote: > > On Wednesday 11 June 2008, Michael Ellerman wrote: > > > On Wed, 2008-06-11 at 18:28 +0200, Arnd Bergmann wrote: > > > > We used to do this correctly in case of a user triggered > > > > kexec,

Re: [Cbe-oss-dev] [PATCH] powerpc/cell: disable ptcal in case of kdump reboot

2008-06-12 Thread Michael Neuling
In message <[EMAIL PROTECTED]> you wrote: > > On Thu, 2008-06-12 at 18:06 +1000, Michael Neuling wrote: > > In message <[EMAIL PROTECTED]> you wrote: > > > On Wednesday 11 June 2008, Michael Ellerman wrote: > > > > On Wed, 2008-06-11 at 18:28 +0200, Arnd Bergmann wrote: > > > > > We used to do thi