Subject: Re: PCI questions
To: None <briggs@wasabisystems.com>
From: Kazuki Sakamoto <sakamoto@splhack.org>
List: port-bebox
Date: 02/06/2001 10:30:46
briggs@wasabisystems.com wrote:
> Ah... OK... So the PHYS_TO_PCI_MEM(x) is a translation that
> allows a PCI bus master to access system memory?
> That is, if I am a PCI bus master, and I want to access system
> memory address 0x00001234, then I want to use 0x80001234, so I
> would use PHYS_TO_PCI_MEM(0x00001234). Correct?
Yes. It should be used with DMA access from PCI master.
sakamoto