[PATCH] Use SLB size from the device tree

[Paul Mackerras]

Michael Neuling writes:

> Currently we hardwire the number of SLBs but the PAPR says we export an
> ibm,slb-size property to specify the number of SLB entries.  This patch
> uses this property instead of assuming 64 always.  If no property is
> found, we assume 64 entries as before.

On 32-bit platforms (e.g. powermac) I get:

/home/paulus/kernel/powerpc/arch/powerpc/kernel/prom.c: In function 'check_cpu_slb_size':
/home/paulus/kernel/powerpc/arch/powerpc/kernel/prom.c:592: error: 'mmu_slb_size' undeclared (first use in this function)
/home/paulus/kernel/powerpc/arch/powerpc/kernel/prom.c:592: error: (Each undeclared identifier is reported only once
/home/paulus/kernel/powerpc/arch/powerpc/kernel/prom.c:592: error: for each function it appears in.)
make[2]: *** [arch/powerpc/kernel/prom.o] Error 1

Paul.