Merge tag 'drm-intel-next-2016-11-08' of git://anongit.freedesktop.org/git/drm-intel into drm-next

- gpu idling rework for s/r (Imre)
- vlv mappable scanout fix
- speed up probing in resume (Lyude)
- dp audio workarounds for gen9 (Dhinakaran)
- more conversion to using dev_priv internally (Ville)
- more gen9+ wm fixes and cleanups (Maarten)
- shrinker cleanup&fixes (Chris)
- reorg plane init code (Ville)
- implement support for multiple timelines (prep work for scheduler)
  from Chris and all
- untangle dev->struct_mutex locking as prep for multiple timelines
  (Chris)
- refactor bxt phy code and collect it all in intel_dpio_phy.c (Ander)
- another gvt with bugfixes all over from Zhenyu
- piles of lspcon fixes from Imre
- 90/270 rotation fixes (Ville)
- guc log buffer support (Akash+Sagar)
- fbc fixes from Paulo
- untangle rpm vs. tiling-fences/mmaps (Chris)
- fix atomic commit to wait on the right fences (Daniel Stone)

* tag 'drm-intel-next-2016-11-08' of git://anongit.freedesktop.org/git/drm-intel: (181 commits)
  drm/i915: Update DRIVER_DATE to 20161108
  drm/i915: Mark CPU cache as dirty when used for rendering
  drm/i915: Add assert for no pending GPU requests during suspend/resume in LR mode
  drm/i915: Make sure engines are idle during GPU idling in LR mode
  drm/i915: Avoid early GPU idling due to race with new request
  drm/i915: Avoid early GPU idling due to already pending idle work
  drm/i915: Limit Valleyview and earlier to only using mappable scanout
  drm/i915: Round tile chunks up for constructing partial VMAs
  drm/i915: Remove the vma from the object list upon close
  drm/i915: Reinit polling before hpd when resuming
  drm/i915: Remove redundant reprobe in i915_drm_resume
  drm/i915/dp: Extend BDW DP audio workaround to GEN9 platforms
  drm/i915/dp: BDW cdclk fix for DP audio
  drm/i915: Fix pages pin counting around swizzle quirk
  drm/i915: Fix test on inputs for vma_compare()
  drm/i915/guc: Cache the client mapping
  drm/i915: Tidy slab cache allocations
  drm/i915: Introduce HAS_64BIT_RELOC
  drm/i915: Show the execlist queue in debugfs/i915_engine_info
  drm/i915: Unify global_list into global_link
  ...

1 files changed, 22 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 3e74fb3d4aa9..9ab1f95dddc5 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -239,7 +239,11 @@ static int handle_device_reset(struct intel_vgpu *vgpu, unsigned int offset,
 	vgpu->resetting = true;
 
 	intel_vgpu_stop_schedule(vgpu);
-	if (scheduler->current_vgpu == vgpu) {
+	/*
+	 * The current_vgpu will set to NULL after stopping the
+	 * scheduler when the reset is triggered by current vgpu.
+	 */
+	if (scheduler->current_vgpu == NULL) {
 		mutex_unlock(&vgpu->gvt->lock);
 		intel_gvt_wait_vgpu_idle(vgpu);
 		mutex_lock(&vgpu->gvt->lock);
@@ -247,6 +251,16 @@ static int handle_device_reset(struct intel_vgpu *vgpu, unsigned int offset,
 
 	intel_vgpu_reset_execlist(vgpu, bitmap);
 
+	/* full GPU reset */
+	if (bitmap == 0xff) {
+		mutex_unlock(&vgpu->gvt->lock);
+		intel_vgpu_clean_gtt(vgpu);
+		mutex_lock(&vgpu->gvt->lock);
+		setup_vgpu_mmio(vgpu);
+		populate_pvinfo_page(vgpu);
+		intel_vgpu_init_gtt(vgpu);
+	}
+
 	vgpu->resetting = false;
 
 	return 0;
@@ -258,6 +272,7 @@ static int gdrst_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
 	u32 data;
 	u64 bitmap = 0;
 
+	write_vreg(vgpu, offset, p_data, bytes);
 	data = vgpu_vreg(vgpu, offset);
 
 	if (data & GEN6_GRDOM_FULL) {
@@ -1305,7 +1320,7 @@ static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
 	int ring_id = render_mmio_to_ring_id(vgpu->gvt, offset);
 	struct intel_vgpu_execlist *execlist;
 	u32 data = *(u32 *)p_data;
-	int ret;
+	int ret = 0;
 
 	if (WARN_ON(ring_id < 0 || ring_id > I915_NUM_ENGINES - 1))
 		return -EINVAL;
@@ -1313,12 +1328,15 @@ static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
 	execlist = &vgpu->execlist[ring_id];
 
 	execlist->elsp_dwords.data[execlist->elsp_dwords.index] = data;
-	if (execlist->elsp_dwords.index == 3)
+	if (execlist->elsp_dwords.index == 3) {
 		ret = intel_vgpu_submit_execlist(vgpu, ring_id);
+		if(ret)
+			gvt_err("fail submit workload on ring %d\n", ring_id);
+	}
 
 	++execlist->elsp_dwords.index;
 	execlist->elsp_dwords.index &= 0x3;
-	return 0;
+	return ret;
 }
 
 static int ring_mode_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,