Messages in this thread | | | Date | Wed, 23 Feb 2011 15:30:28 +0100 | From | Ralf Baechle <> | Subject | Re: [RFC PATCH 02/10] MIPS: Octeon: Add device tree source files. |
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On Wed, Feb 23, 2011 at 11:07:59AM +1100, David Gibson wrote:
> Uh.. where are the CPUs?
CPUs are probed the old style way on MIPS. There is a large number of varieties of CPUs - things like cache size, cache line size, architectural extension and many small details of behaviour differ. If we'd fully honor DT CPU configuration information a kernel would need to have fairly full blown generic CPU support for anything under the sun. But there already is a scheme that allows platform support code to select permanet enablement, disablement or runtime probe for every CPU feature under the sun for significant code savings and performance gain.
Ralf
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