Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [RFC/PATCH 0/3] ARM: Use udiv/sdiv for __aeabi_{u}idiv library functions | Date | Wed, 25 Nov 2015 08:21:31 +0100 |
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On Tuesday 24 November 2015 17:51:37 Stephen Boyd wrote: > On 11/24, Arnd Bergmann wrote: > > On Monday 23 November 2015 15:13:52 Stephen Boyd wrote: > > IOW, anything with CPU implementer 0x56 part 0x581 should use those, > > while part 0x584 can use the sdiv/udiv that it reports correctly. > > > > It looks like we have some sort of function that mostly does > this, except it doesn't differentiate on that lower bit for 1 vs > 4. I guess I'll write another one for that. > > static inline int cpu_is_pj4(void) > { > unsigned int id; > > id = read_cpuid_id(); > if ((id & 0xff0fff00) == 0x560f5800) > return 1; > > return 0; > }
Correct, thanks.
Arnd
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