diff options
| author | Becky Bruce <becky.bruce@freescale.com> | 2008-06-14 09:41:43 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-06-30 22:31:05 +1000 |
| commit | 316a405841cc03723d401b098d188aa4e3daa69b (patch) | |
| tree | 476be4fad16c690d1650890757aacc3095e85129 /include | |
| parent | 7c5c4325d2d911fe54db3bc14149bfa558ae0acb (diff) | |
| download | blackbird-op-linux-316a405841cc03723d401b098d188aa4e3daa69b.tar.gz blackbird-op-linux-316a405841cc03723d401b098d188aa4e3daa69b.zip | |
powerpc: Get rid of bitfields in ppc_bat struct
While working on the 36-bit physical support, I noticed that there
was exactly one line of code that actually referenced the bitfields.
So I got rid of them and redefined ppc_bat as a struct of 2 u32's:
batu and batl. I also got rid of the previous union that held the
bitfield structs and a word representation of the batu/l values.
This seems like a nicer solution than adding in a bunch of
new bitfields to support extended bat addressing that would never
get used, and just leaving the struct as-is would have been
incomplete in the face of large physical addressing.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-powerpc/mmu-hash32.h | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/include/asm-powerpc/mmu-hash32.h b/include/asm-powerpc/mmu-hash32.h index f39ff983b381..16b1a1e77e64 100644 --- a/include/asm-powerpc/mmu-hash32.h +++ b/include/asm-powerpc/mmu-hash32.h @@ -38,23 +38,8 @@ #endif struct ppc_bat { - struct { - unsigned long bepi:15; /* Effective page index (virtual address) */ - unsigned long :4; /* Unused */ - unsigned long bl:11; /* Block size mask */ - unsigned long vs:1; /* Supervisor valid */ - unsigned long vp:1; /* User valid */ - } batu; /* Upper register */ - struct { - unsigned long brpn:15; /* Real page index (physical address) */ - unsigned long :10; /* Unused */ - unsigned long w:1; /* Write-thru cache */ - unsigned long i:1; /* Cache inhibit */ - unsigned long m:1; /* Memory coherence */ - unsigned long g:1; /* Guarded (MBZ in IBAT) */ - unsigned long :1; /* Unused */ - unsigned long pp:2; /* Page access protections */ - } batl; /* Lower register */ + u32 batu; + u32 batl; }; #endif /* !__ASSEMBLY__ */ |
