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

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Op 09-11-17 om 18:51 schreef Ville Syrjälä:
> On Thu, Nov 09, 2017 at 06:31:02PM +0100, Maarten Lankhorst wrote:
>> 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. :/
> I'd rather not spread more ->state uses when I just recently
> managed to clean out many of them. We still have some left for
> sure, but adding more seems like going backwards.
>
Maybe export hsw_pipe_A_crc_wa ?

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