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-rw-r--r--sys/mips/include/vmparam.h19
1 files changed, 10 insertions, 9 deletions
diff --git a/sys/mips/include/vmparam.h b/sys/mips/include/vmparam.h
index 4e1f03c..8922924 100644
--- a/sys/mips/include/vmparam.h
+++ b/sys/mips/include/vmparam.h
@@ -108,22 +108,23 @@
#define VM_NRESERVLEVEL 0
#endif
-/* virtual sizes (bytes) for various kernel submaps */
-#ifndef VM_KMEM_SIZE
-#define VM_KMEM_SIZE (12 * 1024 * 1024)
-#endif
-
/*
- * How many physical pages per KVA page allocated.
- * min(max(VM_KMEM_SIZE, Physical memory/VM_KMEM_SIZE_SCALE), VM_KMEM_SIZE_MAX)
- * is the total KVA space allocated for kmem_map.
+ * How many physical pages per kmem arena virtual page.
*/
#ifndef VM_KMEM_SIZE_SCALE
#define VM_KMEM_SIZE_SCALE (3)
#endif
/*
- * Ceiling on the amount of kmem_map KVA space: 40% of the entire KVA space.
+ * Optional floor (in bytes) on the size of the kmem arena.
+ */
+#ifndef VM_KMEM_SIZE_MIN
+#define VM_KMEM_SIZE_MIN (12 * 1024 * 1024)
+#endif
+
+/*
+ * Optional ceiling (in bytes) on the size of the kmem arena: 40% of the
+ * kernel map.
*/
#ifndef VM_KMEM_SIZE_MAX
#define VM_KMEM_SIZE_MAX ((VM_MAX_KERNEL_ADDRESS - \
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