While we're on the topic of vmapbuf:
I have a kernel module that maps two 64k chunks of user memory into the kernel
using the same set of steps that cam_periph_mapmem uses. However, I inevitably
get the following panic after running the code for a bit:
Aug 30 14:55:26 testhost /kernel: panic: wor
On Fri, 30 Aug 2002, Balaji, Pavan wrote:
>
> Thanx. It's nearly done. I just need to know two more small things.
>
> physio() requires a dev_t as a parameter. What do I give in over here? I
> can't give NULL, cause it does use it for some stuff in the function
> definition.
I wasn't suggest
"Only the Paranoid Survive" -- Andy Grove
> -Original Message-
> From: Julian Elischer [mailto:[EMAIL PROTECTED]]
> Sent: Friday, August 30, 2002 3:49 PM
> To: Balaji, Pavan
> Cc: '[EMAIL PROTECTED]'
> Subject: RE: Copying from Virtual Address Space
; Thanx.
>
> Pavan Balaji,
> Intel Corporation
> Email: [EMAIL PROTECTED]
>
> "Only the Paranoid Survive" -- Andy Grove
>
>
> > -Original Message-
> > From: Julian Elischer [mailto:[EMAIL PROTECTED]]
> > Sent: Friday,
ECTED]
>
> "Only the Paranoid Survive" -- Andy Grove
>
>
> > -Original Message-
> > From: Julian Elischer [mailto:[EMAIL PROTECTED]]
> > Sent: Friday, August 30, 2002 3:20 PM
> > To: Balaji, Pavan
> > Cc: '[EMAIL PROTECTED]
el Corporation
Email: [EMAIL PROTECTED]
"Only the Paranoid Survive" -- Andy Grove
> -Original Message-
> From: Julian Elischer [mailto:[EMAIL PROTECTED]]
> Sent: Friday, August 30, 2002 3:20 PM
> To: Balaji, Pavan
> Cc: '[EMAIL PROTECTED]
On Fri, 30 Aug 2002, Julian Elischer wrote:
> Physio() does this.. first it finds the physical addresses of the user
> pages targetted, then it maps those pages into kernel space, and then it
> initiates IO to them. (this actually needs to change but for now it's
> true.
to correct myself..
p
On Fri, 30 Aug 2002, Balaji, Pavan wrote:
> Hi,
>
> Is there some function using which I can copy data from the Kernel Virtual
> Space to a pinned Physical Address Page.
Not as such, though there are plenty of places that do such a thing. The
answer is always to map the physical page somewher
Hi,
Is there some function using which I can copy data from the Kernel Virtual
Space to a pinned Physical Address Page.
Thanx,
Pavan Balaji,
Intel Corporation
Email: [EMAIL PROTECTED]
"Only the Paranoid Survive" -- Andy Grove
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