Date: Sun, 11 Dec 2011 17:23:03 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r228413 - head/sys/powerpc/include Message-ID: <201112111723.pBBHN3v6061597@svn.freebsd.org>
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Author: nwhitehorn Date: Sun Dec 11 17:23:03 2011 New Revision: 228413 URL: http://svn.freebsd.org/changeset/base/228413 Log: Increase the available virtual address space for user programs on PowerPC AIM systems to 4 GB on 32-bit systems and 2^64 bytes on 64-bit systems. VM_MAXUSER_ADDRESS remains at 2 GB on pending Book-E, pending review of an increase to 3 GB by those more familiar with Book-E. Modified: head/sys/powerpc/include/vmparam.h Modified: head/sys/powerpc/include/vmparam.h ============================================================================== --- head/sys/powerpc/include/vmparam.h Sun Dec 11 17:19:48 2011 (r228412) +++ head/sys/powerpc/include/vmparam.h Sun Dec 11 17:23:03 2011 (r228413) @@ -57,29 +57,34 @@ #define MAXSSIZ (64*1024*1024) /* max stack size */ #endif +#ifdef AIM +#define VM_MAXUSER_ADDRESS32 ((vm_offset_t)0xfffff000) +#else +#define VM_MAXUSER_ADDRESS32 ((vm_offset_t)0x7ffff000) +#endif + /* * Would like to have MAX addresses = 0, but this doesn't (currently) work */ #if !defined(LOCORE) #ifdef __powerpc64__ #define VM_MIN_ADDRESS (0x0000000000000000UL) -#define VM_MAXUSER_ADDRESS (0x7ffffffffffff000UL) -#define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) +#define VM_MAXUSER_ADDRESS (0xfffffffffffff000UL) #define VM_MAX_ADDRESS (0xffffffffffffffffUL) #else #define VM_MIN_ADDRESS ((vm_offset_t)0) -#define VM_MAXUSER_ADDRESS ((vm_offset_t)0x7ffff000) -#define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) -#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS +#define VM_MAXUSER_ADDRESS VM_MAXUSER_ADDRESS32 +#define VM_MAX_ADDRESS ((vm_offset_t)0xffffffff) #endif +#define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) #else /* LOCORE */ -#ifndef __powerpc64__ +#if !defined(__powerpc64__) && defined(E500) #define VM_MIN_ADDRESS 0 #define VM_MAXUSER_ADDRESS 0x7ffff000 #endif #endif /* LOCORE */ -#define FREEBSD32_SHAREDPAGE (0x7ffff000 - PAGE_SIZE) +#define FREEBSD32_SHAREDPAGE (VM_MAXUSER_ADDRESS32 - PAGE_SIZE) #define FREEBSD32_USRSTACK FREEBSD32_SHAREDPAGE #ifdef AIM
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