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From: Jani Nikula <jani.nikula@linux.intel.com>
To: Ville Syrjala <ville.syrjala@linux.intel.com>,
	intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH] drm/i915: Rename i915_{save, restore}_state()
Date: Tue, 06 Oct 2020 12:03:41 +0300	[thread overview]
Message-ID: <87zh4zk9oy.fsf@intel.com> (raw)
In-Reply-To: <20201005171441.26612-1-ville.syrjala@linux.intel.com>

On Mon, 05 Oct 2020, Ville Syrjala <ville.syrjala@linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> i915_{save,restore}_state() are actually all about the display.
> Currently they are split into display part + SWF part. But since
> the SWF part is also related to the display let's just move that
> part into its own thing and flip the roles around so that the
> current display part is the main function.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/gpu/drm/i915/i915_drv.c     |   4 +-
>  drivers/gpu/drm/i915/i915_suspend.c | 116 ++++++++++++++--------------
>  drivers/gpu/drm/i915/i915_suspend.h |   4 +-
>  3 files changed, 60 insertions(+), 64 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 45e719c79183..1c1f5dbb467c 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -1089,7 +1089,7 @@ static int i915_drm_suspend(struct drm_device *dev)
>  
>  	i915_ggtt_suspend(&dev_priv->ggtt);
>  
> -	i915_save_state(dev_priv);
> +	i915_save_display(dev_priv);
>  
>  	opregion_target_state = suspend_to_idle(dev_priv) ? PCI_D1 : PCI_D3cold;
>  	intel_opregion_suspend(dev_priv, opregion_target_state);
> @@ -1202,7 +1202,7 @@ static int i915_drm_resume(struct drm_device *dev)
>  
>  	intel_csr_ucode_resume(dev_priv);
>  
> -	i915_restore_state(dev_priv);
> +	i915_restore_display(dev_priv);
>  	intel_pps_unlock_regs_wa(dev_priv);
>  
>  	intel_init_pch_refclk(dev_priv);
> diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
> index 7b64e7137270..db2111fc809e 100644
> --- a/drivers/gpu/drm/i915/i915_suspend.c
> +++ b/drivers/gpu/drm/i915/i915_suspend.c
> @@ -32,7 +32,57 @@
>  #include "i915_reg.h"
>  #include "i915_suspend.h"
>  
> -static void i915_save_display(struct drm_i915_private *dev_priv)
> +static void intel_save_swf(struct drm_i915_private *dev_priv)
> +{
> +	int i;
> +
> +	/* Scratch space */
> +	if (IS_GEN(dev_priv, 2) && IS_MOBILE(dev_priv)) {
> +		for (i = 0; i < 7; i++) {
> +			dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
> +			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
> +		}
> +		for (i = 0; i < 3; i++)
> +			dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
> +	} else if (IS_GEN(dev_priv, 2)) {
> +		for (i = 0; i < 7; i++)
> +			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
> +	} else if (HAS_GMCH(dev_priv)) {
> +		for (i = 0; i < 16; i++) {
> +			dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
> +			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
> +		}
> +		for (i = 0; i < 3; i++)
> +			dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
> +	}
> +}
> +
> +static void intel_restore_swf(struct drm_i915_private *dev_priv)
> +{
> +	int i;
> +
> +	/* Scratch space */
> +	if (IS_GEN(dev_priv, 2) && IS_MOBILE(dev_priv)) {
> +		for (i = 0; i < 7; i++) {
> +			I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
> +			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
> +		}
> +		for (i = 0; i < 3; i++)
> +			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
> +	} else if (IS_GEN(dev_priv, 2)) {
> +		for (i = 0; i < 7; i++)
> +			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
> +	} else if (HAS_GMCH(dev_priv)) {
> +		for (i = 0; i < 16; i++) {
> +			I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
> +			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
> +		}
> +		for (i = 0; i < 3; i++)
> +			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
> +	}
> +}
> +
> +void i915_save_display(struct drm_i915_private *dev_priv)
>  {
>  	struct pci_dev *pdev = dev_priv->drm.pdev;
>  
> @@ -43,12 +93,16 @@ static void i915_save_display(struct drm_i915_private *dev_priv)
>  	if (IS_GEN(dev_priv, 4))
>  		pci_read_config_word(pdev, GCDGMBUS,
>  				     &dev_priv->regfile.saveGCDGMBUS);
> +
> +	intel_save_swf(dev_priv);
>  }
>  
> -static void i915_restore_display(struct drm_i915_private *dev_priv)
> +void i915_restore_display(struct drm_i915_private *dev_priv)
>  {
>  	struct pci_dev *pdev = dev_priv->drm.pdev;
>  
> +	intel_restore_swf(dev_priv);
> +
>  	if (IS_GEN(dev_priv, 4))
>  		pci_write_config_word(pdev, GCDGMBUS,
>  				      dev_priv->regfile.saveGCDGMBUS);
> @@ -64,61 +118,3 @@ static void i915_restore_display(struct drm_i915_private *dev_priv)
>  
>  	intel_gmbus_reset(dev_priv);
>  }
> -
> -int i915_save_state(struct drm_i915_private *dev_priv)
> -{
> -	int i;
> -
> -	i915_save_display(dev_priv);
> -
> -	/* Scratch space */
> -	if (IS_GEN(dev_priv, 2) && IS_MOBILE(dev_priv)) {
> -		for (i = 0; i < 7; i++) {
> -			dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
> -			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
> -		}
> -		for (i = 0; i < 3; i++)
> -			dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
> -	} else if (IS_GEN(dev_priv, 2)) {
> -		for (i = 0; i < 7; i++)
> -			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
> -	} else if (HAS_GMCH(dev_priv)) {
> -		for (i = 0; i < 16; i++) {
> -			dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
> -			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
> -		}
> -		for (i = 0; i < 3; i++)
> -			dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
> -	}
> -
> -	return 0;
> -}
> -
> -int i915_restore_state(struct drm_i915_private *dev_priv)
> -{
> -	int i;
> -
> -	i915_restore_display(dev_priv);
> -
> -	/* Scratch space */
> -	if (IS_GEN(dev_priv, 2) && IS_MOBILE(dev_priv)) {
> -		for (i = 0; i < 7; i++) {
> -			I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
> -			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
> -		}
> -		for (i = 0; i < 3; i++)
> -			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
> -	} else if (IS_GEN(dev_priv, 2)) {
> -		for (i = 0; i < 7; i++)
> -			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
> -	} else if (HAS_GMCH(dev_priv)) {
> -		for (i = 0; i < 16; i++) {
> -			I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
> -			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
> -		}
> -		for (i = 0; i < 3; i++)
> -			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
> -	}
> -
> -	return 0;
> -}
> diff --git a/drivers/gpu/drm/i915/i915_suspend.h b/drivers/gpu/drm/i915/i915_suspend.h
> index 3a36fb4ecc05..e5a611ee3d15 100644
> --- a/drivers/gpu/drm/i915/i915_suspend.h
> +++ b/drivers/gpu/drm/i915/i915_suspend.h
> @@ -8,7 +8,7 @@
>  
>  struct drm_i915_private;
>  
> -int i915_save_state(struct drm_i915_private *i915);
> -int i915_restore_state(struct drm_i915_private *i915);
> +void i915_save_display(struct drm_i915_private *i915);
> +void i915_restore_display(struct drm_i915_private *i915);
>  
>  #endif /* __I915_SUSPEND_H__ */

-- 
Jani Nikula, Intel Open Source Graphics Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

      parent reply	other threads:[~2020-10-06  9:03 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-05 17:14 [Intel-gfx] [PATCH] drm/i915: Rename i915_{save,restore}_state() Ville Syrjala
2020-10-05 20:50 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for " Patchwork
2020-10-05 21:11 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-10-05 23:56 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2020-10-06  9:03 ` Jani Nikula [this message]

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