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Increase DMAP (Direct Map) size on ARM64

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Previous DMAP size was too small for systems with more than 64GB
of RAM. Increase it to 128GB to support ThunderX CRB.

Reviewed by:   andrew
Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3113
This commit is contained in:
Zbigniew Bodek 2015-07-17 13:58:00 +00:00
parent 6256e57ba9
commit d5dfc8ad00
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=285653
1 changed files with 2 additions and 2 deletions
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4
sys/arm64/include/vmparam.h
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@ -156,9 +156,9 @@
#define VM_MIN_KERNEL_ADDRESS (0xffffff8000000000UL)
#define VM_MAX_KERNEL_ADDRESS (0xffffff8800000000UL)
/* Direct Map for 64 GiB of PA: 0x0 - 0xfffffffff */
/* Direct Map for 128 GiB of PA: 0x0 - 0x1fffffffff */
#define DMAP_MIN_ADDRESS (0xffffffc000000000UL)
#define DMAP_MAX_ADDRESS (0xffffffcfffffffffUL)
#define DMAP_MAX_ADDRESS (0xffffffdfffffffffUL)
#define DMAP_MIN_PHYSADDR (0x0000000000000000UL)
#define DMAP_MAX_PHYSADDR (DMAP_MAX_ADDRESS - DMAP_MIN_ADDRESS)