Date: Tue, 21 Dec 2010 21:32:17 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r216625 - head/sys/sparc64/include Message-ID: <201012212132.oBLLWHGb076057@svn.freebsd.org>
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Author: marius Date: Tue Dec 21 21:32:17 2010 New Revision: 216625 URL: http://svn.freebsd.org/changeset/base/216625 Log: Revert r216080 so kmem_map is capped at 3/5 of the currently rather modest kernel address space in order to leave space for the buffer cache, pipes, thread stacks, etc on machines with more physical memory until we take advantage of ASI_ATOMIC_QUAD_LDD_PHYS on CPUs providing it so we don't need to lock the kernel TSB pages into the dTLB, basically making the entire 64-bit kernel address space available on relevant machines. Submitted by: alc Modified: head/sys/sparc64/include/vmparam.h Modified: head/sys/sparc64/include/vmparam.h ============================================================================== --- head/sys/sparc64/include/vmparam.h Tue Dec 21 21:29:02 2010 (r216624) +++ head/sys/sparc64/include/vmparam.h Tue Dec 21 21:32:17 2010 (r216625) @@ -240,7 +240,8 @@ * Ceiling on amount of kmem_map kva space. */ #ifndef VM_KMEM_SIZE_MAX -#define VM_KMEM_SIZE_MAX (VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS) +#define VM_KMEM_SIZE_MAX ((VM_MAX_KERNEL_ADDRESS - \ + VM_MIN_KERNEL_ADDRESS + 1) * 3 / 5) #endif /*
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