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* sh: smp: shove a cpu_relax() in the plat_start_cpu() busy loop.Paul Mundt2008-09-07
| | | | | | | Without this, certain versions of GCC will happily optimize the entire loop out. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: smp: Hook in to the generic IPI handler for SH-X3 SMP.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Initial SH-X3 SMP support.Paul Mundt2007-09-21
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>