Re: [PATCH v2 3/6] drm/i915: Pass crtc_state to ips toggle functions

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Op 09-11-17 om 18:09 schreef Ville Syrjälä:
> On Thu, Nov 09, 2017 at 05:24:55PM +0100, Maarten Lankhorst wrote:
>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
>> ---
>>  drivers/gpu/drm/i915/intel_color.c   |  4 ++--
>>  drivers/gpu/drm/i915/intel_display.c | 24 +++++++++++++-----------
>>  drivers/gpu/drm/i915/intel_dp.c      |  6 +++---
>>  drivers/gpu/drm/i915/intel_drv.h     |  4 ++--
>>  4 files changed, 20 insertions(+), 18 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
>> index b8315bca852b..c6373febf617 100644
>> --- a/drivers/gpu/drm/i915/intel_color.c
>> +++ b/drivers/gpu/drm/i915/intel_color.c
>> @@ -370,7 +370,7 @@ static void haswell_load_luts(struct drm_crtc_state *crtc_state)
>>  	 */
>>  	if (IS_HASWELL(dev_priv) && intel_crtc_state->ips_enabled &&
>>  	    (intel_crtc_state->gamma_mode == GAMMA_MODE_MODE_SPLIT)) {
>> -		hsw_disable_ips(intel_crtc);
>> +		hsw_disable_ips(intel_crtc, intel_crtc_state);
> I would suggest simplifying more and passing only the state.
> The callee can always dig out the crtc if it needs it.
>
>>  		reenable_ips = true;
>>  	}
>>  
>> @@ -380,7 +380,7 @@ static void haswell_load_luts(struct drm_crtc_state *crtc_state)
>>  	i9xx_load_luts(crtc_state);
>>  
>>  	if (reenable_ips)
>> -		hsw_enable_ips(intel_crtc);
>> +		hsw_enable_ips(intel_crtc, intel_crtc_state);
>>  }
>>  
>>  static void bdw_load_degamma_lut(struct drm_crtc_state *state)
>> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>> index f5933b0719c9..13b372e4f06e 100644
>> --- a/drivers/gpu/drm/i915/intel_display.c
>> +++ b/drivers/gpu/drm/i915/intel_display.c
>> @@ -4832,12 +4832,12 @@ static void ironlake_pfit_enable(struct intel_crtc *crtc)
>>  	}
>>  }
>>  
>> -void hsw_enable_ips(struct intel_crtc *crtc)
>> +void hsw_enable_ips(struct intel_crtc *crtc, const struct intel_crtc_state *crtc_state)
>>  {
>>  	struct drm_device *dev = crtc->base.dev;
>>  	struct drm_i915_private *dev_priv = to_i915(dev);
>>  
>> -	if (!crtc->config->ips_enabled)
>> +	if (!crtc_state->ips_enabled)
>>  		return;
>>  
>>  	/*
>> @@ -4871,12 +4871,12 @@ void hsw_enable_ips(struct intel_crtc *crtc)
>>  	}
>>  }
>>  
>> -void hsw_disable_ips(struct intel_crtc *crtc)
>> +void hsw_disable_ips(struct intel_crtc *crtc, const struct intel_crtc_state *crtc_state)
>>  {
>>  	struct drm_device *dev = crtc->base.dev;
>>  	struct drm_i915_private *dev_priv = to_i915(dev);
>>  
>> -	if (!crtc->config->ips_enabled)
>> +	if (!crtc_state->ips_enabled)
>>  		return;
>>  
>>  	assert_plane_enabled(dev_priv, crtc->plane);
> Hmm. Confusied. Oh right, my plane assert cleanup didn't manage to go in yet :P
>
>> @@ -4924,7 +4924,8 @@ static void intel_crtc_dpms_overlay_disable(struct intel_crtc *intel_crtc)
>>   * completely hide the primary plane.
>>   */
>>  static void
>> -intel_post_enable_primary(struct drm_crtc *crtc)
>> +intel_post_enable_primary(struct drm_crtc *crtc,
>> +			  const struct intel_crtc_state *new_crtc_state)
>>  {
>>  	struct drm_device *dev = crtc->dev;
>>  	struct drm_i915_private *dev_priv = to_i915(dev);
>> @@ -4937,7 +4938,7 @@ intel_post_enable_primary(struct drm_crtc *crtc)
>>  	 * when going from primary only to sprite only and vice
>>  	 * versa.
>>  	 */
>> -	hsw_enable_ips(intel_crtc);
>> +	hsw_enable_ips(intel_crtc, new_crtc_state);
>>  
>>  	/*
>>  	 * Gen2 reports pipe underruns whenever all planes are disabled.
>> @@ -4956,7 +4957,8 @@ intel_post_enable_primary(struct drm_crtc *crtc)
>>  
>>  /* FIXME move all this to pre_plane_update() with proper state tracking */
>>  static void
>> -intel_pre_disable_primary(struct drm_crtc *crtc)
>> +intel_pre_disable_primary(struct drm_crtc *crtc,
>> +			  const struct intel_crtc_state *old_crtc_state)
>>  {
>>  	struct drm_device *dev = crtc->dev;
>>  	struct drm_i915_private *dev_priv = to_i915(dev);
>> @@ -4978,7 +4980,7 @@ intel_pre_disable_primary(struct drm_crtc *crtc)
>>  	 * when going from primary only to sprite only and vice
>>  	 * versa.
>>  	 */
>> -	hsw_disable_ips(intel_crtc);
>> +	hsw_disable_ips(intel_crtc, old_crtc_state);
>>  }
>>  
>>  /* FIXME get rid of this and use pre_plane_update */
>> @@ -4990,7 +4992,7 @@ intel_pre_disable_primary_noatomic(struct drm_crtc *crtc)
>>  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
>>  	int pipe = intel_crtc->pipe;
>>  
>> -	intel_pre_disable_primary(crtc);
>> +	intel_pre_disable_primary(crtc, to_intel_crtc_state(crtc->state));
>>  
>>  	/*
>>  	 * Vblank time updates from the shadow to live plane control register
>> @@ -5034,7 +5036,7 @@ static void intel_post_plane_update(struct intel_crtc_state *old_crtc_state)
>>  		if (primary_state->base.visible &&
>>  		    (needs_modeset(&pipe_config->base) ||
>>  		     !old_primary_state->base.visible))
>> -			intel_post_enable_primary(&crtc->base);
>> +			intel_post_enable_primary(&crtc->base, pipe_config);
>>  	}
>>  }
>>  
>> @@ -5063,7 +5065,7 @@ static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state,
>>  
>>  		if (old_primary_state->base.visible &&
>>  		    (modeset || !primary_state->base.visible))
>> -			intel_pre_disable_primary(&crtc->base);
>> +			intel_pre_disable_primary(&crtc->base, old_crtc_state);
>>  	}
>>  
>>  	/*
>> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
>> index cddd96b24878..82c33d9cd466 100644
>> --- a/drivers/gpu/drm/i915/intel_dp.c
>> +++ b/drivers/gpu/drm/i915/intel_dp.c
>> @@ -3947,7 +3947,7 @@ static int intel_dp_sink_crc_stop(struct intel_dp *intel_dp)
>>  	}
>>  
>>   out:
>> -	hsw_enable_ips(intel_crtc);
>> +	hsw_enable_ips(intel_crtc, to_intel_crtc_state(intel_crtc->base.state));
> crtc->config would seem like the slightly more correct thing to pass
> here. It's also easier to grep for when someone sets out to fix this
> mess properly.
Considered it, but our crtc->config usage is a mess. I'd rather get rid of the intel_dp_sink_crc code tbh. :/
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