Re: [PATCH v3 3/3] platform/x86: intel_pmc_core: Decode Snoop / Non Snoop LTR

2018-11-02 Thread Andy Shevchenko
On Fri, Nov 2, 2018 at 12:37 PM Rajneesh Bhardwaj
 wrote:
>
> The LTR values follow PCIE LTR encoding format and can be decoded as per
> https://pcisig.com/sites/default/files/specification_documents/ECN_LatencyTolnReporting_14Aug08.pdf
>
> This adds support to translate the raw LTR values as read from the PMC
> to meaningful values in nanosecond units of time.

> +#include 

I told you something different, i.e. put this header where you _use_
it, i.o.w into the header file.

> +#define LTR_REQ_NONSNOOP   BIT(31)
> +#define LTR_REQ_SNOOP  BIT(15)
> +#define LTR_DECODED_VALGENMASK(9, 0)
> +#define LTR_DECODED_SCALE  GENMASK(12, 10)

If these are in one register, please keep ordered by start bit.

The rest is fine.

-- 
With Best Regards,
Andy Shevchenko


Re: [PATCH v3 3/3] platform/x86: intel_pmc_core: Decode Snoop / Non Snoop LTR

2018-11-05 Thread Bhardwaj, Rajneesh




On 03-Nov-18 12:02 AM, Andy Shevchenko wrote:

On Fri, Nov 2, 2018 at 12:37 PM Rajneesh Bhardwaj
 wrote:

The LTR values follow PCIE LTR encoding format and can be decoded as per
https://pcisig.com/sites/default/files/specification_documents/ECN_LatencyTolnReporting_14Aug08.pdf

This adds support to translate the raw LTR values as read from the PMC
to meaningful values in nanosecond units of time.
+#include 

I told you something different, i.e. put this header where you _use_
it, i.o.w into the header file.


Oops! Will move it to the header.




+#define LTR_REQ_NONSNOOP   BIT(31)
+#define LTR_REQ_SNOOP  BIT(15)
+#define LTR_DECODED_VALGENMASK(9, 0)
+#define LTR_DECODED_SCALE  GENMASK(12, 10)

If these are in one register, please keep ordered by start bit.


Sure, will do.



The rest is fine.



Many thanks again for your detailed review.