[Intel-gfx] [PATCH 01/16] drm/i915: Don't enable/unmask flip interrupts

[Imre Deak]

On Fri, Aug 18, 2017 at 09:36:50PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> commit fd3a40242e87 ("drm/i915: Rip out legacy page_flip completion/irq
> handling") removed the code to hande the flip done/pending interrupts,
> but it failed to actually disable/mask those interrupts. Let's do that
> now.
> 
> Also remove a stale comment that was left behind.
> 
> Cc: Daniel Vetter <daniel.vetter at intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_irq.c | 34 ++++++++--------------------------
>  1 file changed, 8 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index e21ce9c18b6e..4bfa7fbbd72e 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -2925,8 +2925,7 @@ static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
>  	u32 enable_mask;
>  	enum pipe pipe;
>  
> -	pipestat_mask = PLANE_FLIP_DONE_INT_STATUS_VLV |
> -			PIPE_CRC_DONE_INTERRUPT_STATUS;
> +	pipestat_mask = PIPE_CRC_DONE_INTERRUPT_STATUS;
>  
>  	i915_enable_pipestat(dev_priv, PIPE_A, PIPE_GMBUS_INTERRUPT_STATUS);
>  	for_each_pipe(dev_priv, pipe)
> @@ -3299,18 +3298,14 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
>  
>  	if (INTEL_GEN(dev_priv) >= 7) {
>  		display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE_IVB |
> -				DE_PCH_EVENT_IVB | DE_PLANEC_FLIP_DONE_IVB |
> -				DE_PLANEB_FLIP_DONE_IVB |
> -				DE_PLANEA_FLIP_DONE_IVB | DE_AUX_CHANNEL_A_IVB);
> +				DE_PCH_EVENT_IVB | DE_AUX_CHANNEL_A_IVB);
>  		extra_mask = (DE_PIPEC_VBLANK_IVB | DE_PIPEB_VBLANK_IVB |
>  			      DE_PIPEA_VBLANK_IVB | DE_ERR_INT_IVB |
>  			      DE_DP_A_HOTPLUG_IVB);
>  	} else {
>  		display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT |
> -				DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE |
> -				DE_AUX_CHANNEL_A |
> -				DE_PIPEB_CRC_DONE | DE_PIPEA_CRC_DONE |
> -				DE_POISON);
> +				DE_AUX_CHANNEL_A | DE_PIPEB_CRC_DONE |
> +				DE_PIPEA_CRC_DONE | DE_POISON);
>  		extra_mask = (DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT |
>  			      DE_PIPEB_FIFO_UNDERRUN | DE_PIPEA_FIFO_UNDERRUN |
>  			      DE_DP_A_HOTPLUG);
> @@ -3432,15 +3427,13 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
>  	enum pipe pipe;
>  
>  	if (INTEL_GEN(dev_priv) >= 9) {
> -		de_pipe_masked |= GEN9_PIPE_PLANE1_FLIP_DONE |
> -				  GEN9_DE_PIPE_IRQ_FAULT_ERRORS;
> +		de_pipe_masked |= GEN9_DE_PIPE_IRQ_FAULT_ERRORS;
>  		de_port_masked |= GEN9_AUX_CHANNEL_B | GEN9_AUX_CHANNEL_C |
>  				  GEN9_AUX_CHANNEL_D;
>  		if (IS_GEN9_LP(dev_priv))
>  			de_port_masked |= BXT_DE_PORT_GMBUS;
>  	} else {
> -		de_pipe_masked |= GEN8_PIPE_PRIMARY_FLIP_DONE |
> -				  GEN8_DE_PIPE_IRQ_FAULT_ERRORS;
> +		de_pipe_masked |= GEN8_DE_PIPE_IRQ_FAULT_ERRORS;
>  	}
>  
>  	de_pipe_enables = de_pipe_masked | GEN8_PIPE_VBLANK |
> @@ -3590,9 +3583,7 @@ static int i8xx_irq_postinstall(struct drm_device *dev)
>  	/* Unmask the interrupts that we always want on. */
>  	dev_priv->irq_mask =
>  		~(I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
> -		  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
> -		  I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
> -		  I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
> +		  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT);
>  	I915_WRITE16(IMR, dev_priv->irq_mask);
>  
>  	I915_WRITE16(IER,
> @@ -3611,9 +3602,6 @@ static int i8xx_irq_postinstall(struct drm_device *dev)
>  	return 0;
>  }
>  
> -/*
> - * Returns true when a page flip has completed.
> - */
>  static irqreturn_t i8xx_irq_handler(int irq, void *arg)
>  {
>  	struct drm_device *dev = arg;
> @@ -3732,9 +3720,7 @@ static int i915_irq_postinstall(struct drm_device *dev)
>  	dev_priv->irq_mask =
>  		~(I915_ASLE_INTERRUPT |
>  		  I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
> -		  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
> -		  I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
> -		  I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
> +		  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT);
>  
>  	enable_mask =
>  		I915_ASLE_INTERRUPT |
> @@ -3919,13 +3905,9 @@ static int i965_irq_postinstall(struct drm_device *dev)
>  			       I915_DISPLAY_PORT_INTERRUPT |
>  			       I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
>  			       I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
> -			       I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
> -			       I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
>  			       I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
>  
>  	enable_mask = ~dev_priv->irq_mask;
> -	enable_mask &= ~(I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
> -			 I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
>  	enable_mask |= I915_USER_INTERRUPT;
>  
>  	if (IS_G4X(dev_priv))
> -- 
> 2.13.0
> 
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