Date: Wed, 04 Oct 2000 12:32:09 -0400 (EDT) From: "Alexander N. Kabaev" <ak03@gte.com> To: freebsd-hackers@freebsd.org Subject: How to allocate kernel memory with PG_NC_PCD set Message-ID: <XFMail.001004123209.ak03@gte.com>
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The subject says it all :)
What is the best way to allocate kernel memory with non-cacheable bit set? Or,
better yet, is it possible to change caching bit on an already kmalloc'ed
memory block? Will something like this work?
pt_entry_t pte;
pte = (pt_entry_t)vtopte(vaddr);
*pte |= PG_NC_PCD;
invtlb();
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E-Mail: Alexander N. Kabaev <ak03@gte.com>
Date: 04-Oct-00
Time: 12:12:22
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