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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2011-12-11 17:23:03 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2011-12-11 17:23:03 +0000 |
| commit | f297a69ec56ed61c75c4da4af31a82bb652a7e67 (patch) | |
| tree | 67d49b994077407a447902efb5d39fbea8dbf1c1 /sys/powerpc/include | |
| parent | fd8805df000b68f061013f444749f8d5e546c090 (diff) | |
| download | FreeBSD-src-f297a69ec56ed61c75c4da4af31a82bb652a7e67.zip FreeBSD-src-f297a69ec56ed61c75c4da4af31a82bb652a7e67.tar.gz | |
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.
Diffstat (limited to 'sys/powerpc/include')
| -rw-r--r-- | sys/powerpc/include/vmparam.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/sys/powerpc/include/vmparam.h b/sys/powerpc/include/vmparam.h index cec455f..36afd1f 100644 --- a/sys/powerpc/include/vmparam.h +++ b/sys/powerpc/include/vmparam.h @@ -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 |
