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Date: Tue, 21 Mar 2023 22:43:47 -0700
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From: "Dixit, Ashutosh" <ashutosh.dixit@intel.com>
To: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
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Subject: Re: [igt-dev] [PATCH i-g-t v4 31/31] lib/i915/perf: Apply shift to
 raw timestamp as well
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 Lionel G Landwerlin <lionel.g.landwerlin@linux.intel.com>
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On Tue, 21 Mar 2023 17:05:23 -0700, Umesh Nerlige Ramappa wrote:
>
> Apply the OA timestamp shift to the raw timestamp as well.

Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>

> Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
> ---
>  lib/i915/perf.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/lib/i915/perf.c b/lib/i915/perf.c
> index d736490b..ddadb53b 100644
> --- a/lib/i915/perf.c
> +++ b/lib/i915/perf.c
> @@ -1003,6 +1003,11 @@ uint64_t intel_perf_read_record_timestamp_raw(const struct intel_perf *perf,
>                 assert(0);
>         }
>
> +       if (perf->devinfo.oa_timestamp_shift >= 0)
> +	       ts <<= perf->devinfo.oa_timestamp_shift;
> +       else
> +	       ts >>= -perf->devinfo.oa_timestamp_shift;
> +
>         return ts;
>  }
>
> --
> 2.36.1
>