[PATCH] powerpc: Use more accurate limit for first segment memory allocations

2010-05-10 Thread Anton Blanchard
Author: Milton Miller On large machines we are running out of room below 256MB. In some cases we only need to ensure the allocation is in the first segment, which may be 256MB or 1TB. Add slb0_limit and use it to specify the upper limit for the irqstack and emergency stacks. On a large ppc64 bo

Re: [PATCH] powerpc: Use more accurate limit for first segment memory allocations

2010-05-11 Thread Michael Ellerman
On Tue, 2010-05-11 at 14:59 +1000, Anton Blanchard wrote: > Author: Milton Miller > > On large machines we are running out of room below 256MB. In some cases we > only need to ensure the allocation is in the first segment, which may be > 256MB or 1TB. > > Add slb0_limit and use it to specify the