Re: [RFC/PATCH] ARM: Expose cpuid registers to userspace

2014-11-18 Thread Catalin Marinas
Stephen, On Tue, Oct 28, 2014 at 01:19:12AM +, Stephen Boyd wrote: > Exporting all the different possible configurations of CPUID > registers to userspace via hwcaps is going to explode the hwcaps. > Emulate userspace cpuid register accesses and export a new > "cpuid" hwcap instead so that use

Re: [RFC/PATCH] ARM: Expose cpuid registers to userspace

2014-10-28 Thread Stephen Boyd
Adding some Ccs. On 10/27, Stephen Boyd wrote: > Exporting all the different possible configurations of CPUID > registers to userspace via hwcaps is going to explode the hwcaps. > Emulate userspace cpuid register accesses and export a new > "cpuid" hwcap instead so that userspace can know to try t

[RFC/PATCH] ARM: Expose cpuid registers to userspace

2014-10-27 Thread Stephen Boyd
Exporting all the different possible configurations of CPUID registers to userspace via hwcaps is going to explode the hwcaps. Emulate userspace cpuid register accesses and export a new "cpuid" hwcap instead so that userspace can know to try to read the cpuid registers itself. Cc: Måns Rullgård C