[Intel-gfx] [PATCH 03/18] drm/i915/skl: Document the WM read latency W/A with its name

Nick Hoath nicholas.hoath at intel.com
Wed Feb 11 06:51:27 PST 2015


On 09/02/2015 19:33, Damien Lespiau wrote:
> Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>

Reviewed-by: Nick Hoath <nicholas.hoath at intel.com>

> ---
>   drivers/gpu/drm/i915/intel_pm.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index a3b979d..6fd6f26 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -1701,6 +1701,8 @@ static void intel_read_wm_latency(struct drm_device *dev, uint16_t wm[8])
>   				GEN9_MEM_LATENCY_LEVEL_MASK;
>
>   		/*
> +		 * WaWmMemoryReadLatency:skl
> +		 *
>   		 * punit doesn't take into account the read latency so we need
>   		 * to add 2us to the various latency levels we retrieve from
>   		 * the punit.
>



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