linux-toradex.git/arch/x86/kernel/acpi/cppc_msr.c, branch v4.19 Linux kernel for Apalis and Colibri modules ACPI / CPPC: Add support for functional fixed hardware address 2016-09-08T21:02:14+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2016-09-01T20:37:10+00:00 a6cbcdd5ab5f242d49f511127f0a601b71be2cc4 The CPPC registers can also be accessed via functional fixed hardware addresse(FFH) in X86. Add support by modifying cpc_read and cpc_write to be able to read/write MSRs on x86 platform on per cpu basis. Also with this change, acpi_cppc_processor_probe doesn't bail out if address space id is not equal to PCC or memory address space and FFH is supported on the system. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
The CPPC registers can also be accessed via functional fixed hardware
addresse(FFH) in X86. Add support by modifying cpc_read and cpc_write to
be able to read/write MSRs on x86 platform on per cpu basis.
Also with this change, acpi_cppc_processor_probe doesn't bail out if
address space id is not equal to PCC or memory address space and FFH
is supported on the system.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>