diff options
| author | Richard Henderson <rth@twiddle.net> | 2010-03-10 14:33:23 -0800 |
|---|---|---|
| committer | Paul Brook <paul@codesourcery.com> | 2010-03-12 16:28:24 +0000 |
| commit | 5270589032f450ae7c3448730855aa18ff68ccff (patch) | |
| tree | b918b07e410db7876c774d5f8c063dae4178497c /target-ppc/cpu.h | |
| parent | 0aef4261ac0ec9089ade0e3a92f986cb4ba7317e (diff) | |
Move TARGET_PHYS_ADDR_SPACE_BITS to target-*/cpu.h.
Removes a set of ifdefs from exec.c.
Introduce TARGET_VIRT_ADDR_SPACE_BITS for all targets other
than Alpha. This will be used for page_find_alloc, which is
supposed to be using virtual addresses in the first place.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-ppc/cpu.h')
| -rw-r--r-- | target-ppc/cpu.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index 63aeb86070..cecc6e2cd5 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -29,6 +29,20 @@ #define TARGET_LONG_BITS 64 #define TARGET_PAGE_BITS 12 +/* Note that the official physical address space bits is 62-M where M + is implementation dependent. I've not looked up M for the set of + cpus we emulate at the system level. */ +#define TARGET_PHYS_ADDR_SPACE_BITS 62 + +/* Note that the PPC environment architecture talks about 80 bit virtual + addresses, with segmentation. Obviously that's not all visible to a + single process, which is all we're concerned with here. */ +#ifdef TARGET_ABI32 +# define TARGET_VIRT_ADDR_SPACE_BITS 32 +#else +# define TARGET_VIRT_ADDR_SPACE_BITS 64 +#endif + #else /* defined (TARGET_PPC64) */ /* PowerPC 32 definitions */ #define TARGET_LONG_BITS 32 @@ -50,6 +64,9 @@ #define TARGET_PAGE_BITS 12 #endif /* defined(TARGET_PPCEMB) */ +#define TARGET_PHYS_ADDR_SPACE_BITS 32 +#define TARGET_VIRT_ADDR_SPACE_BITS 32 + #endif /* defined (TARGET_PPC64) */ #define CPUState struct CPUPPCState |