PERFORCE change 126437 for review
Kip Macy
kmacy at FreeBSD.org
Sat Sep 15 12:41:50 PDT 2007
http://perforce.freebsd.org/chv.cgi?CH=126437
Change 126437 by kmacy at kmacy_home:ethng on 2007/09/15 19:41:10
switch x86_64 over to allocating kva for contigmalloc out of the direct map
Affected files ...
.. //depot/projects/ethng/src/sys/amd64/amd64/vm_machdep.c#2 edit
.. //depot/projects/ethng/src/sys/amd64/include/vmparam.h#2 edit
Differences ...
==== //depot/projects/ethng/src/sys/amd64/amd64/vm_machdep.c#2 (text+ko) ====
@@ -566,3 +566,23 @@
return 1;
}
+
+void *
+contigmalloc2(vm_page_t m, vm_pindex_t npages, int flags)
+{
+ return (void *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(m));
+}
+
+void
+contigfree(void *addr, unsigned long size, struct malloc_type *type)
+{
+ vm_pindex_t npgs;
+ vm_page_t m;
+ int i;
+
+ npgs = round_page(size) >> PAGE_SHIFT;
+ m = PHYS_TO_VM_PAGE(DMAP_TO_PHYS((vm_offset_t)addr));
+ for (i = 0; i < npgs; i++, m++)
+ vm_page_free(m);
+ malloc_type_freed(type, npgs << PAGE_SHIFT);
+}
==== //depot/projects/ethng/src/sys/amd64/include/vmparam.h#2 (text+ko) ====
@@ -185,4 +185,10 @@
#define VM_INITIAL_PAGEIN 16
#endif
+/*
+ * We provide a machine specific contiguous mapping function
+ * which uses the direct map
+ */
+#define VM_MD_CONTIG
+
#endif /* _MACHINE_VMPARAM_H_ */
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