Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH 1/3] powernv:idle: Use correct IDLE_THREAD_BITS in POWER8/9 | Date | Thu, 13 Apr 2017 20:00:47 +1000 |
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Michael Neuling <mikey@neuling.org> writes:
> On Wed, 2017-04-12 at 17:16 +0530, Gautham R. Shenoy wrote: >> From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com> >> >> This patch ensures that POWER8 and POWER9 processors use the correct >> value of IDLE_THREAD_BITS as POWER8 has 8 threads per core and hence >> the IDLE_THREAD_BITS should be 0xFF while POWER9 has only 4 threads >> per core and hence the IDLE_THREAD_BITS should be 0xF. > > Why don't we derive this from the device tree rather than hard wiring it per cpu > type?
Right.
In fact we already have threads_per_core which is exactly that.
cheers
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