Anju T Sudhakar <a...@linux.vnet.ibm.com> writes:
> IMC_MAX_PMU is used for static storage (per_nest_pmu_arr) which holds
> nest pmu information. Current value for the macro is 32 based on
> the initial number of nest pmu units supported by the nest microcode.
> Currently 29 nest units are enabled based on the system configuration.
> But going forward, microcode could support more nest units (max of 64
> nest units). Hence fix the value for the macro.
There should be no reason to have a hard coded limit.
We should just fix the code to dynamically size the array based on
what's found in the device tree.
cheers
> Fixes:8f95faaac56c1 ('powerpc/powernv: Detect and create IMC device')
> Signed-off-by: Anju T Sudhakar <a...@linux.vnet.ibm.com>
> ---
> arch/powerpc/include/asm/imc-pmu.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/include/asm/imc-pmu.h
> b/arch/powerpc/include/asm/imc-pmu.h
> index 7f74c28..f9f0f2e 100644
> --- a/arch/powerpc/include/asm/imc-pmu.h
> +++ b/arch/powerpc/include/asm/imc-pmu.h
> @@ -23,7 +23,7 @@
> /*
> * For static allocation of some of the structures.
> */
> -#define IMC_MAX_PMUS 32
> +#define IMC_MAX_PMUS 64
>
> /*
> * Compatibility macros for IMC devices
> --
> 2.7.4
