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3 Commits

Author SHA1 Message Date
Paul Mundt 71f0bdcab6 sh: smp: shove a cpu_relax() in the plat_start_cpu() busy loop. 
Without this, certain versions of GCC will happily optimize the entire
loop out.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2008-09-08 10:35:03 +09:00
Paul Mundt c7936b9abc sh: smp: Hook in to the generic IPI handler for SH-X3 SMP. 
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2008-09-08 10:35:03 +09:00
Paul Mundt 1a442fe02d sh: Initial SH-X3 SMP support. 
This adds basic support for SH-X3 SMP (4 CPUs).

More IPI and cache debugging is necessary, mostly interfacing the
d-cache coherency and the I-cache broadcast invalidates. Only for
testing at present!

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2007-09-21 19:16:05 +09:00