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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-16 16:42:50 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-26 16:55:25 +1000
commitc4007a2fbf5f82b7e694c22b5929c87e38415a56 (patch)
tree9f959ef72a62eea0638cd2b1ed85a6b2e7fb3a70 /arch/powerpc/include
parentf97bb36f705da0a86b3ea77bfeee3415fee0b025 (diff)
powerpc: Use one common impl. of RTAS timebase sync and use raw spinlock
Several platforms use their own copy of what is essentially the same code, using RTAS to synchronize the timebases when bringing up new CPUs. This moves it all into a single common implementation and additionally turns the spinlock into a raw spinlock since the former can rely on the timebase not being frozen when spinlock debugging is enabled, and finally masks interrupts while the timebase is disabled. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/rtas.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h
index 0af42d20b69..168fce72620 100644
--- a/arch/powerpc/include/asm/rtas.h
+++ b/arch/powerpc/include/asm/rtas.h
@@ -245,5 +245,8 @@ static inline u32 rtas_config_addr(int busno, int devfn, int reg)
(devfn << 8) | (reg & 0xff);
}
+extern void __cpuinit rtas_give_timebase(void);
+extern void __cpuinit rtas_take_timebase(void);
+
#endif /* __KERNEL__ */
#endif /* _POWERPC_RTAS_H */