svn commit: r194938 - projects/mips/sys/mips/mips
Oleksandr Tymoshenko
gonzo at FreeBSD.org
Thu Jun 25 02:15:05 UTC 2009
Author: gonzo
Date: Thu Jun 25 02:15:04 2009
New Revision: 194938
URL: http://svn.freebsd.org/changeset/base/194938
Log:
- Invalidate cache in pmap_qenter. Fixes corruption of data
that comes through pipe (may be other bugs)
Modified:
projects/mips/sys/mips/mips/pmap.c
Modified: projects/mips/sys/mips/mips/pmap.c
==============================================================================
--- projects/mips/sys/mips/mips/pmap.c Thu Jun 25 02:14:47 2009 (r194937)
+++ projects/mips/sys/mips/mips/pmap.c Thu Jun 25 02:15:04 2009 (r194938)
@@ -744,11 +744,14 @@ void
pmap_qenter(vm_offset_t va, vm_page_t *m, int count)
{
int i;
+ vm_offset_t origva = va;
for (i = 0; i < count; i++) {
pmap_kenter(va, VM_PAGE_TO_PHYS(m[i]));
va += PAGE_SIZE;
}
+
+ mips_dcache_wbinv_range_index(origva, PAGE_SIZE*count);
}
/*
@@ -758,6 +761,11 @@ pmap_qenter(vm_offset_t va, vm_page_t *m
void
pmap_qremove(vm_offset_t va, int count)
{
+ /*
+ * No need to wb/inv caches here,
+ * pmap_kremove will do it for us
+ */
+
while (count-- > 0) {
pmap_kremove(va);
va += PAGE_SIZE;
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