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arm64: Increase dmap size to 95 TiB

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The Ampere Altra has physical memory populated sparsely within the
physical address space. Increase the size of the dmap to cover all
physical memory.

Reviewed by:	andrew
Approved by:	scottl (implicit)
MFC after:	1 week
Sponsored by:	Ampere Computing, Inc.
Differential Revision:	https://reviews.freebsd.org/D26134
This commit is contained in:
D Scott Phillips 2020-08-26 02:13:27 +00:00
parent dd6fd1d430
commit d4d2928a3f
1 changed files with 2 additions and 2 deletions
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4
sys/arm64/include/vmparam.h
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@ -156,8 +156,8 @@
#define VM_MIN_KERNEL_ADDRESS (0xffff000000000000UL)
#define VM_MAX_KERNEL_ADDRESS (0xffff008000000000UL)
/* 2 TiB maximum for the direct map region */
#define DMAP_MIN_ADDRESS (0xfffffd0000000000UL)
/* 95 TiB maximum for the direct map region */
#define DMAP_MIN_ADDRESS (0xffffa00000000000UL)
#define DMAP_MAX_ADDRESS (0xffffff0000000000UL)
#define DMAP_MIN_PHYSADDR (dmap_phys_base)