[Intel-gfx] [PATCH 01/57] drm/i915/gt: Restrict the GT clock override to just Icelake

[Mika Kuoppala]

Chris Wilson <chris at chris-wilson.co.uk> writes:

> It appears that Elkhart Lake uses the same clock for CTX_TIMESTAMP as
> CS_TIMESTAMP, leaving Icelake as the odd one out.

I am repeating myself: weird.
...but true.

>
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/3024
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>

> ---
>  drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c
> index f8c79efb1a87..09b290fe0867 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c
> @@ -160,7 +160,7 @@ void intel_gt_init_clock_frequency(struct intel_gt *gt)
>  		gt->clock_period_ns = intel_gt_clock_interval_to_ns(gt, 1);
>  
>  	/* Icelake appears to use another fixed frequency for CTX_TIMESTAMP */
> -	if (IS_GEN(gt->i915, 11))
> +	if (IS_ICELAKE(gt->i915))
>  		gt->clock_period_ns = NSEC_PER_SEC / 13750000;
>  
>  	GT_TRACE(gt,
> -- 
> 2.20.1
>
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