D42737.id136170.diff
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	diff --git a/sys/arm64/arm64/copyinout.S b/sys/arm64/arm64/copyinout.S
	--- a/sys/arm64/arm64/copyinout.S
	+++ b/sys/arm64/arm64/copyinout.S
	@@ -30,6 +30,7 @@
	#include <machine/asm.h>
	#include <sys/errno.h>

	+#include <machine/param.h>
	#include <machine/vmparam.h>

	#include "assym.inc"
	diff --git a/sys/arm64/include/vmparam.h b/sys/arm64/include/vmparam.h
	--- a/sys/arm64/include/vmparam.h
	+++ b/sys/arm64/include/vmparam.h
	@@ -99,8 +99,17 @@
	* are used by UMA, the physical memory allocator reduces the likelihood of
	* both 2MB page TLB misses and cache misses during the page table walk when
	* a 2MB page TLB miss does occur.
	+ *
	+ * When PAGE_SIZE is 16KB, an allocation size of 32MB is supported. This
	+ * size is used by level 0 reservations and L2 BLOCK mappings.
	*/
	+#if PAGE_SIZE == PAGE_SIZE_4K
	#define VM_NFREEORDER 13
	+#elif PAGE_SIZE == PAGE_SIZE_16K
	+#define VM_NFREEORDER 12
	+#else
	+#error Unsupported page size
	+#endif

	/*
	* Enable superpage reservations: 1 level.
	@@ -110,10 +119,17 @@
	#endif

	/*
	- * Level 0 reservations consist of 512 pages.
	+ * Level 0 reservations consist of 512 pages when PAGE_SIZE is 4KB, and
	+ * 2048 pages when PAGE_SIZE is 16KB.
	*/
	#ifndef VM_LEVEL_0_ORDER
	+#if PAGE_SIZE == PAGE_SIZE_4K
	#define VM_LEVEL_0_ORDER 9
	+#elif PAGE_SIZE == PAGE_SIZE_16K
	+#define VM_LEVEL_0_ORDER 11
	+#else
	+#error Unsupported page size
	+#endif
	#endif

	/**