Date: Mon, 26 Aug 2013 16:23:54 +0000 (UTC) From: Rafal Jaworowski <raj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r254915 - head/sys/arm/include Message-ID: <201308261623.r7QGNsiR073040@svn.freebsd.org>
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Author: raj Date: Mon Aug 26 16:23:54 2013 New Revision: 254915 URL: http://svnweb.freebsd.org/changeset/base/254915 Log: Provide settings for superpage reservation system on ARM. This allows for enabling and configuring superpages reservation mechanism in order to allocate and populate 256 4KB base pages (for the purpose of promotion to a 1MB superpage). Submitted by: Zbigniew Bodek <zbb@semihalf.com> Reviewed by: alc Sponsored by: The FreeBSD Foundation, Semihalf Modified: head/sys/arm/include/vmparam.h Modified: head/sys/arm/include/vmparam.h ============================================================================== --- head/sys/arm/include/vmparam.h Mon Aug 26 16:04:52 2013 (r254914) +++ head/sys/arm/include/vmparam.h Mon Aug 26 16:23:54 2013 (r254915) @@ -109,10 +109,17 @@ #define VM_NFREEORDER 9 /* - * Disable superpage reservations. + * Enable superpage reservations: 1 level. */ #ifndef VM_NRESERVLEVEL -#define VM_NRESERVLEVEL 0 +#define VM_NRESERVLEVEL 1 +#endif + +/* + * Level 0 reservations consist of 256 pages. + */ +#ifndef VM_LEVEL_0_ORDER +#define VM_LEVEL_0_ORDER 8 #endif #define UPT_MAX_ADDRESS VADDR(UPTPTDI + 3, 0)
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