Date: Wed, 13 Feb 2008 11:15:48 -0800 From: Marcel Moolenaar <xcllnt@mac.com> To: ia64@freebsd.org Subject: FreeBSD on Montecito: solved... Message-ID: <6C851D25-4B3A-4563-8363-C1BD9A14C1AC@mac.com>
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All,
I recently found some time again to play around with Montecito and
the good news is that I have FreeBSD up and running!!!
The problem was the I-cache all along. My initial hacking to deal
with the I-cache incoherency was flawed and it threw me off-track.
The attached patch, which undoubtedly is a big kluge, works.
I'll be working in the next couple of days/weeks to come up with
a real solution...
FYI,
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Index: pmap.c
===================================================================
RCS file: /home/ncvs/src/sys/ia64/ia64/pmap.c,v
retrieving revision 1.196
diff -u -r1.196 pmap.c
--- pmap.c 3 Jan 2008 07:34:33 -0000 1.196
+++ pmap.c 13 Feb 2008 19:03:11 -0000
@@ -1183,6 +1183,7 @@
pmap_set_pte(struct ia64_lpte *pte, vm_offset_t va, vm_offset_t pa,
boolean_t wired, boolean_t managed)
{
+ vm_offset_t lim;
pte->pte &= PTE_PROT_MASK | PTE_PL_MASK | PTE_AR_MASK | PTE_ED;
pte->pte |= PTE_PRESENT | PTE_MA_WB;
@@ -1193,6 +1194,12 @@
pte->itir = PAGE_SHIFT << 2;
pte->tag = ia64_ttag(va);
+
+ lim = va + PAGE_SIZE;
+ while (va < lim) {
+ __asm __volatile("fc.i %0" :: "r"(va));
+ va += 32;
+ }
}
/*
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Marcel Moolenaar
xcllnt@mac.com
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