[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>
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1 changed files with 1 additions and 2 deletions
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@ -70,6 +70,7 @@ struct paca_struct {
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s16 hw_cpu_id; /* Physical processor number */
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u8 cpu_start; /* At startup, processor spins until */
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/* this becomes non-zero. */
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struct slb_shadow *slb_shadow_ptr;
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/*
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* Now, starting in cacheline 2, the exception save areas
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@ -101,8 +102,6 @@ struct paca_struct {
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u64 user_time; /* accumulated usermode TB ticks */
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u64 system_time; /* accumulated system TB ticks */
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u64 startpurr; /* PURR/TB value snapshot */
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struct slb_shadow *slb_shadow_ptr;
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};
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extern struct paca_struct paca[];
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