d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Increase the available virtual address space for user programs on PowerPC

Browse Source 
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.
This commit is contained in:
nwhitehorn 2011-12-11 17:23:03 +00:00
parent fd8805df00
commit f297a69ec5
1 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
sys/powerpc/include/vmparam.h
View File

@ -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