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
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
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
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/pci,
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 subj)? If
not, is there a way to freeze it for
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 elaborate?
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
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 same (just as
10 matches
Mail list logo
