linux-kernel - linux-next: manual merge of the drm tree with Linus' tree

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Date:   Mon, 26 Mar 2018 14:38:57 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Dave Airlie <airlied@...ux.ie>,
        DRI <dri-devel@...ts.freedesktop.org>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Hellstrom <thellstrom@...are.com>
Subject: linux-next: manual merge of the drm tree with Linus' tree

Hi all,

Today's linux-next merge of the drm tree got conflicts in:

  drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
  drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

between commit:

  140bcaa23a1c ("drm/vmwgfx: Fix black screen and device errors when running without fbdev")

from Linus' tree and commit:

  c3b9b1657344 ("drm/vmwgfx: Improve on hibernation")

from the drm tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 9116fe8baebc,9e60de95b863..000000000000
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@@ -938,7 -947,8 +947,9 @@@ int vmw_kms_present(struct vmw_private 
  int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
  				struct drm_file *file_priv);
  void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
 +void vmw_kms_lost_device(struct drm_device *dev);
+ int vmw_kms_suspend(struct drm_device *dev);
+ int vmw_kms_resume(struct drm_device *dev);
  
  int vmw_dumb_create(struct drm_file *file_priv,
  		    struct drm_device *dev,
diff --cc drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 3c824fd7cbf3,3628a9fe705f..000000000000
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@@ -2561,11 -2551,10 +2557,12 @@@ int vmw_kms_helper_resource_prepare(str
  	if (res->backup) {
  		ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup,
  						    interruptible,
- 						    res->dev_priv->has_mob);
+ 						    res->dev_priv->has_mob,
+ 						    false);
  		if (ret)
  			goto out_unreserve;
 +
 +		ctx->buf = vmw_dmabuf_reference(res->backup);
  	}
  	ret = vmw_resource_validate(res);
  	if (ret)
@@@ -2863,12 -2850,49 +2860,59 @@@ int vmw_kms_set_config(struct drm_mode_
  }
  
  
 +/**
 + * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
 + *
 + * @dev: Pointer to the drm device
 + */
 +void vmw_kms_lost_device(struct drm_device *dev)
 +{
 +	drm_atomic_helper_shutdown(dev);
 +}
++
+ /**
+  * vmw_kms_suspend - Save modesetting state and turn modesetting off.
+  *
+  * @dev: Pointer to the drm device
+  * Return: 0 on success. Negative error code on failure.
+  */
+ int vmw_kms_suspend(struct drm_device *dev)
+ {
+ 	struct vmw_private *dev_priv = vmw_priv(dev);
+ 
+ 	dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
+ 	if (IS_ERR(dev_priv->suspend_state)) {
+ 		int ret = PTR_ERR(dev_priv->suspend_state);
+ 
+ 		DRM_ERROR("Failed kms suspend: %d\n", ret);
+ 		dev_priv->suspend_state = NULL;
+ 
+ 		return ret;
+ 	}
+ 
+ 	return 0;
+ }
+ 
+ 
+ /**
+  * vmw_kms_resume - Re-enable modesetting and restore state
+  *
+  * @dev: Pointer to the drm device
+  * Return: 0 on success. Negative error code on failure.
+  *
+  * State is resumed from a previous vmw_kms_suspend(). It's illegal
+  * to call this function without a previous vmw_kms_suspend().
+  */
+ int vmw_kms_resume(struct drm_device *dev)
+ {
+ 	struct vmw_private *dev_priv = vmw_priv(dev);
+ 	int ret;
+ 
+ 	if (WARN_ON(!dev_priv->suspend_state))
+ 		return 0;
+ 
+ 	ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
+ 	dev_priv->suspend_state = NULL;
+ 
+ 	return ret;
+ }

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