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| author | kib <kib@FreeBSD.org> | 2011-01-14 11:36:44 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2011-01-14 11:36:44 +0000 |
| commit | a8f14f7c92063bb4b5e271afb698921204865fbc (patch) | |
| tree | 30475bdc175495750f46766cd96f06001f9e52fa /sys/powerpc/include/vmparam.h | |
| parent | 8ffb81ed62bfb8466b2865c8ebd16c406d608551 (diff) | |
| download | FreeBSD-src-a8f14f7c92063bb4b5e271afb698921204865fbc.zip FreeBSD-src-a8f14f7c92063bb4b5e271afb698921204865fbc.tar.gz | |
Enable shared page for the signal trampolines on PowerPC.
Reviewed and tested by: nwhitehorn
Diffstat (limited to 'sys/powerpc/include/vmparam.h')
| -rw-r--r-- | sys/powerpc/include/vmparam.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/powerpc/include/vmparam.h b/sys/powerpc/include/vmparam.h index b92ce70..d72e0ea 100644 --- a/sys/powerpc/include/vmparam.h +++ b/sys/powerpc/include/vmparam.h @@ -35,7 +35,7 @@ #ifndef _MACHINE_VMPARAM_H_ #define _MACHINE_VMPARAM_H_ -#define USRSTACK VM_MAXUSER_ADDRESS +#define USRSTACK SHAREDPAGE #ifndef MAXTSIZ #define MAXTSIZ (64*1024*1024) /* max text size */ @@ -64,10 +64,12 @@ #ifdef __powerpc64__ #define VM_MIN_ADDRESS (0x0000000000000000UL) #define VM_MAXUSER_ADDRESS (0x7ffffffffffff000UL) +#define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) #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 #endif #else /* LOCORE */ @@ -77,8 +79,8 @@ #endif #endif /* LOCORE */ -#define FREEBSD32_USRSTACK 0x7ffff000 - +#define FREEBSD32_SHAREDPAGE (0x7ffff000 - PAGE_SIZE) +#define FREEBSD32_USRSTACK FREEBSD32_SHAREDPAGE #ifdef AIM #define KERNBASE 0x00100000UL /* start of kernel virtual */ |
