[Intel-gfx] [PATCH] drm/i915/icl: Add POWER_DOMAIN_GT_IRQ to ICL DC_OFF_POWER_DOMAINS

Ville Syrjälä ville.syrjala at linux.intel.com
Wed Sep 12 12:48:42 UTC 2018


On Tue, Sep 11, 2018 at 06:19:56PM -0700, José Roberto de Souza wrote:
> Without this gem will not be able to turn off DC states to redunce
> interruption latency when no sink is being driven by driver.

Do we know that for sure this is still required? Some kind of test
results to confirm would be nice.

> 
> Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
> Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_runtime_pm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index 480dadb1047b..af8a0b6ee79b 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -1978,6 +1978,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
>  	 */
>  #define ICL_DISPLAY_DC_OFF_POWER_DOMAINS (		\
>  	ICL_PW_2_POWER_DOMAINS |			\
> +	BIT_ULL(POWER_DOMAIN_GT_IRQ) |			\
>  	BIT_ULL(POWER_DOMAIN_MODESET) |			\
>  	BIT_ULL(POWER_DOMAIN_AUX_A) |			\
>  	BIT_ULL(POWER_DOMAIN_INIT))
> -- 
> 2.18.0
> 
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-- 
Ville Syrjälä
Intel


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