Date: Thu, 11 May 2006 17:45:00 +0800 From: <hongz@promisechina.com> To: <freebsd-hackers@freebsd.org> Subject: help:How to map a physical address into a kernel address? Message-ID: <1147340690$36076$55833599@hongz@promisechina.com>
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Hi guys: To access sg_table in kernel address, I need to map the starting physical address of a segment into a kernel address. As I know that, we can use phystovirt()/bustovirt(), or kmap()/kmap_atomic() to map a bus/physical address or a physical page into a kernel address in Linux, but I did not find such a function in FreeBSD. Please help me on this, it is very urgent! Thanks a lot! Hong
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