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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2007-03-16 17:47:07 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-03-21 22:35:51 +1100 |
| commit | e91948fd84086020072e022d5463036033d449c1 (patch) | |
| tree | 542886b186bad826c36664261c7a3427107e2eae /include/asm-powerpc | |
| parent | 0e6806734fd861c360ecbb4262d3d5678cea7faf (diff) | |
| download | op-kernel-dev-e91948fd84086020072e022d5463036033d449c1.zip op-kernel-dev-e91948fd84086020072e022d5463036033d449c1.tar.gz | |
[POWERPC] Minor paca optimisation
Move the slb_shadow_ptr field into the first cache line since it is
(like everything there) read-only after boot. It is in fact statically
initialised and thereafter only read.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/paca.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h index 0d3adc0..4de851d 100644 --- a/include/asm-powerpc/paca.h +++ b/include/asm-powerpc/paca.h @@ -70,6 +70,7 @@ struct paca_struct { s16 hw_cpu_id; /* Physical processor number */ u8 cpu_start; /* At startup, processor spins until */ /* this becomes non-zero. */ + struct slb_shadow *slb_shadow_ptr; /* * Now, starting in cacheline 2, the exception save areas @@ -101,8 +102,6 @@ struct paca_struct { u64 user_time; /* accumulated usermode TB ticks */ u64 system_time; /* accumulated system TB ticks */ u64 startpurr; /* PURR/TB value snapshot */ - - struct slb_shadow *slb_shadow_ptr; }; extern struct paca_struct paca[]; |
