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authorStephen Rothwell <sfr@canb.auug.org.au>2007-03-16 17:47:07 +1100
committerPaul Mackerras <paulus@samba.org>2007-03-21 22:35:51 +1100
commite91948fd84086020072e022d5463036033d449c1 (patch)
tree542886b186bad826c36664261c7a3427107e2eae /include/asm-powerpc
parent0e6806734fd861c360ecbb4262d3d5678cea7faf (diff)
[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.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h
index 0d3adc09c84..4de851d91f9 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[];