Merge tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel into drm-next

Final pile of features for 4.14

- New ioctl to change NOA configurations, plus prep (Lionel)
- CCS (color compression) scanout support, based on the fancy new
  modifier additions (Ville&Ben)
- Document i915 register macro style (Jani)
- Many more gen10/cnl patches (Rodrigo, Pualo, ...)
- More gpu reset vs. modeset duct-tape to restore the old way.
- prep work for cnl: hpd_pin reorg (Rodrigo), support for more power
  wells (Imre), i2c pin reorg (Anusha)
- drm_syncobj support (Jason Ekstrand)
- forcewake vs gpu reset fix (Chris)
- execbuf speedup for the no-relocs fastpath, anv/vk low-overhead ftw (Chris)
- switch to idr/radixtree instead of the resizing ht for execbuf id->vma
  lookups (Chris)

gvt:
- MMIO save/restore optimization (Changbin)
- Split workload scan vs. dispatch for more parallel exec (Ping)
- vGPU full 48bit ppgtt support (Joonas, Tina)
- vGPU hw id expose for perf (Zhenyu)

Bunch of work all over to make the igt CI runs more complete/stable.
Watch https://intel-gfx-ci.01.org/tree/drm-tip/shards-all.html for
progress in getting this ready. Next week we're going into production
mode (i.e. will send results to intel-gfx) on hsw, more platforms to
come.

Also, a new maintainer tram, I'm stepping out. Huge thanks to Jani for
being an awesome co-maintainer the past few years, and all the best
for Jani, Joonas&Rodrigo as the new maintainers!

* tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel: (179 commits)
  drm/i915: Update DRIVER_DATE to 20170818
  drm/i915/bxt: use NULL for GPIO connection ID
  drm/i915: Mark the GT as busy before idling the previous request
  drm/i915: Trivial grammar fix s/opt of/opt out of/ in comment
  drm/i915: Replace execbuf vma ht with an idr
  drm/i915: Simplify eb_lookup_vmas()
  drm/i915: Convert execbuf to use struct-of-array packing for critical fields
  drm/i915: Check context status before looking up our obj/vma
  drm/i915: Don't use MI_STORE_DWORD_IMM on Sandybridge/vcs
  drm/i915: Stop touching forcewake following a gen6+ engine reset
  MAINTAINERS: drm/i915 has a new maintainer team
  drm/i915: Split pin mapping into per platform functions
  drm/i915/opregion: let user specify override VBT via firmware load
  drm/i915/cnl: Reuse skl_wm_get_hw_state on Cannonlake.
  drm/i915/gen10: implement gen 10 watermarks calculations
  drm/i915/cnl: Fix LSPCON support.
  drm/i915/vbt: ignore extraneous child devices for a port
  drm/i915/cnl: Setup PAT Index.
  drm/i915/edp: Allow alternate fixed mode for eDP if available.
  drm/i915: Add support for drm syncobjs
  ...

1 files changed, 15 insertions, 7 deletions

diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 0986ca4f16f1..262e75c00dd2 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -507,8 +507,6 @@ static void intel_fbdev_destroy(struct intel_fbdev *ifbdev)
 	 * trying to rectify all the possible error paths leading here.
 	 */
 
-	drm_fb_helper_unregister_fbi(&ifbdev->helper);
-
 	drm_fb_helper_fini(&ifbdev->helper);
 
 	if (ifbdev->vma) {
@@ -696,8 +694,10 @@ static void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
 
 	/* Due to peculiar init order wrt to hpd handling this is separate. */
 	if (drm_fb_helper_initial_config(&ifbdev->helper,
-					 ifbdev->preferred_bpp))
-		intel_fbdev_fini(ifbdev->helper.dev);
+					 ifbdev->preferred_bpp)) {
+		intel_fbdev_unregister(to_i915(ifbdev->helper.dev));
+		intel_fbdev_fini(to_i915(ifbdev->helper.dev));
+	}
 }
 
 void intel_fbdev_initial_config_async(struct drm_device *dev)
@@ -720,9 +720,8 @@ static void intel_fbdev_sync(struct intel_fbdev *ifbdev)
 	ifbdev->cookie = 0;
 }
 
-void intel_fbdev_fini(struct drm_device *dev)
+void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_fbdev *ifbdev = dev_priv->fbdev;
 
 	if (!ifbdev)
@@ -732,8 +731,17 @@ void intel_fbdev_fini(struct drm_device *dev)
 	if (!current_is_async())
 		intel_fbdev_sync(ifbdev);
 
+	drm_fb_helper_unregister_fbi(&ifbdev->helper);
+}
+
+void intel_fbdev_fini(struct drm_i915_private *dev_priv)
+{
+	struct intel_fbdev *ifbdev = fetch_and_zero(&dev_priv->fbdev);
+
+	if (!ifbdev)
+		return;
+
 	intel_fbdev_destroy(ifbdev);
-	dev_priv->fbdev = NULL;
 }
 
 void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)