Date: Mon, 11 Oct 1999 14:21:53 -0400 From: Vijay Tinnanur <vijay@utstar.com> To: freebsd-questions@FreeBSD.ORG Subject: Physical to virtual mapping Message-ID: <38022AC1.6AAC0D83@utstar.com>
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Hi,
I am developing a device driver for a PCI card. I require to map
physical address of the buffer to it corresponding virtual address (
something that is inverse of vtophys ). Can anyone tell me how to do it.
As I am operating with multiple channels it may not be possible for me
to keep a translation of the virtual to physical mapping after I
allocate the buffer and do a vtophys operation. I will be glad if anyone
can send me a lead on this to
vijay@utstar.com
Thank you,
vijay.
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