Jeff Garzik writes:
> "Khachaturov, Vassilii" wrote:
>> Can someone please confirm if my assumptions below are correct:
>> 1) Unless someone specifically tampered with my driver's device
>> since the OS bootup, the mapping of the PCI base address registers
>> to virtual memory will remain the sam
Jonathan Lundell wrote:
>
> At 5:37 PM -0400 2001-05-16, Jeff Garzik wrote:
> >This is not a safe assumption, because the OS may reprogram the PCI BARs
> >at certain times. The rule is: ALWAYS read from dev->resource[] unless
> >you are a bus driver (PCI bridges, for example, need to assign
> >
At 5:37 PM -0400 2001-05-16, Jeff Garzik wrote:
>This is not a safe assumption, because the OS may reprogram the PCI BARs
>at certain times. The rule is: ALWAYS read from dev->resource[] unless
>you are a bus driver (PCI bridges, for example, need to assign
>resources).
Would you please elabora
Jeff,
Many thanks for the clarifications.
> From: Jeff Garzik
> "Khachaturov, Vassilii" wrote:
[snip]
> > bootup, the mapping of the PCI base address registers to
> virtual memory will
> > remain the same (just as seen in /proc/pci, and as
> reflected in )? If
> > not, is there a way to freeze
"Khachaturov, Vassilii" wrote:
> Can someone please confirm if my assumptions below are correct:
> 1) Unless someone specifically tampered with my driver's device since the OS
> bootup, the mapping of the PCI base address registers to virtual memory will
> remain the same (just as seen in /proc/pc
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