Merge tag 'gvt-next-2018-12-07' of https://github.com/intel/gvt-linux into drm-intel-next-fixes

gvt-next-2018-12-07

- Fix -next regression on shadow ctx's ppgtt destroy (Xiong)
- Update force-to-nonpriv register list (Yan)
- three typo fixes
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207043659.GI12743@zhen-hp.sh.intel.com

drivers/gpu/drm/i915/gvt/cmd_parser.c

@@ -1900,11 +1900,11 @@ static struct cmd_info cmd_info[] = {
 
 	{"MI_URB_CLEAR", OP_MI_URB_CLEAR, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},
 
-	{"ME_SEMAPHORE_SIGNAL", OP_MI_SEMAPHORE_SIGNAL, F_LEN_VAR, R_ALL,
+	{"MI_SEMAPHORE_SIGNAL", OP_MI_SEMAPHORE_SIGNAL, F_LEN_VAR, R_ALL,
 		D_BDW_PLUS, 0, 8, NULL},
 
-	{"ME_SEMAPHORE_WAIT", OP_MI_SEMAPHORE_WAIT, F_LEN_VAR, R_ALL, D_BDW_PLUS,
-		ADDR_FIX_1(2), 8, cmd_handler_mi_semaphore_wait},
+	{"MI_SEMAPHORE_WAIT", OP_MI_SEMAPHORE_WAIT, F_LEN_VAR, R_ALL,
+		D_BDW_PLUS, ADDR_FIX_1(2), 8, cmd_handler_mi_semaphore_wait},
 
 	{"MI_STORE_DATA_IMM", OP_MI_STORE_DATA_IMM, F_LEN_VAR, R_ALL, D_BDW_PLUS,
 		ADDR_FIX_1(1), 10, cmd_handler_mi_store_data_imm},

drivers/gpu/drm/i915/gvt/gvt.c

@@ -437,7 +437,7 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv)
 
 	ret = intel_gvt_debugfs_init(gvt);
 	if (ret)
-		gvt_err("debugfs registeration failed, go on.\n");
+		gvt_err("debugfs registration failed, go on.\n");
 
 	gvt_dbg_core("gvt device initialization is done\n");
 	dev_priv->gvt = gvt;

drivers/gpu/drm/i915/gvt/gvt.h

@@ -159,6 +159,10 @@ struct intel_vgpu_submission {
 	struct kmem_cache *workloads;
 	atomic_t running_workload_num;
 	struct i915_gem_context *shadow_ctx;
+	union {
+		u64 i915_context_pml4;
+		u64 i915_context_pdps[GEN8_3LVL_PDPES];
+	};
 	DECLARE_BITMAP(shadow_ctx_desc_updated, I915_NUM_ENGINES);
 	DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES);
 	void *ring_scan_buffer[I915_NUM_ENGINES];

drivers/gpu/drm/i915/gvt/handlers.c

@@ -475,6 +475,7 @@ static i915_reg_t force_nonpriv_white_list[] = {
 	_MMIO(0x7704),
 	_MMIO(0x7708),
 	_MMIO(0x770c),
+	_MMIO(0x83a8),
 	_MMIO(0xb110),
 	GEN8_L3SQCREG4,//_MMIO(0xb118)
 	_MMIO(0xe100),

drivers/gpu/drm/i915/gvt/interrupt.c

@@ -126,7 +126,7 @@ static const char * const irq_name[INTEL_GVT_EVENT_MAX] = {
 	[FDI_RX_INTERRUPTS_TRANSCODER_C] = "FDI RX Interrupts Combined C",
 	[AUDIO_CP_CHANGE_TRANSCODER_C] = "Audio CP Change Transcoder C",
 	[AUDIO_CP_REQUEST_TRANSCODER_C] = "Audio CP Request Transcoder C",
-	[ERR_AND_DBG] = "South Error and Debug Interupts Combined",
+	[ERR_AND_DBG] = "South Error and Debug Interrupts Combined",
 	[GMBUS] = "Gmbus",
 	[SDVO_B_HOTPLUG] = "SDVO B hotplug",
 	[CRT_HOTPLUG] = "CRT Hotplug",

drivers/gpu/drm/i915/gvt/scheduler.c

@@ -1079,6 +1079,21 @@ int intel_gvt_init_workload_scheduler(struct intel_gvt *gvt)
 	return ret;
 }
 
+static void
+i915_context_ppgtt_root_restore(struct intel_vgpu_submission *s)
+{
+	struct i915_hw_ppgtt *i915_ppgtt = s->shadow_ctx->ppgtt;
+	int i;
+
+	if (i915_vm_is_48bit(&i915_ppgtt->vm))
+		px_dma(&i915_ppgtt->pml4) = s->i915_context_pml4;
+	else {
+		for (i = 0; i < GEN8_3LVL_PDPES; i++)
+			px_dma(i915_ppgtt->pdp.page_directory[i]) =
+						s->i915_context_pdps[i];
+	}
+}
+
 /**
  * intel_vgpu_clean_submission - free submission-related resource for vGPU
  * @vgpu: a vGPU
@@ -1091,6 +1106,7 @@ void intel_vgpu_clean_submission(struct intel_vgpu *vgpu)
 	struct intel_vgpu_submission *s = &vgpu->submission;
 
 	intel_vgpu_select_submission_ops(vgpu, ALL_ENGINES, 0);
+	i915_context_ppgtt_root_restore(s);
 	i915_gem_context_put(s->shadow_ctx);
 	kmem_cache_destroy(s->workloads);
 }
@@ -1116,6 +1132,21 @@ void intel_vgpu_reset_submission(struct intel_vgpu *vgpu,
 	s->ops->reset(vgpu, engine_mask);
 }
 
+static void
+i915_context_ppgtt_root_save(struct intel_vgpu_submission *s)
+{
+	struct i915_hw_ppgtt *i915_ppgtt = s->shadow_ctx->ppgtt;
+	int i;
+
+	if (i915_vm_is_48bit(&i915_ppgtt->vm))
+		s->i915_context_pml4 = px_dma(&i915_ppgtt->pml4);
+	else {
+		for (i = 0; i < GEN8_3LVL_PDPES; i++)
+			s->i915_context_pdps[i] =
+				px_dma(i915_ppgtt->pdp.page_directory[i]);
+	}
+}
+
 /**
  * intel_vgpu_setup_submission - setup submission-related resource for vGPU
  * @vgpu: a vGPU
@@ -1138,6 +1169,8 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
 	if (IS_ERR(s->shadow_ctx))
 		return PTR_ERR(s->shadow_ctx);
 
+	i915_context_ppgtt_root_save(s);
+
 	bitmap_zero(s->shadow_ctx_desc_updated, I915_NUM_ENGINES);
 
 	s->workloads = kmem_cache_create_usercopy("gvt-g_vgpu_workload",