Merge tag 'gvt-next-2017-03-30' of https://github.com/01org/gvt-linux …

…into drm-intel-next-queued gvt-next-2017-03-30 - Add mdev attribute group for per-vgpu info - Time slice based vGPU scheduling QoS support (Gao Ping) - Initial KBL support for E3 server (Han Xu) - other misc. Link: http://patchwork.freedesktop.org/patch/msgid/20170330100516.dkavi3rtlsmnoepi@zhen-hp.sh.intel.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
mariux64 · Mar 30, 2017 · a69035e · a69035e
2 parents 228ec87 + b35f34d
commit a69035e
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Showing 17 changed files with 626 additions and 323 deletions.
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -1215,7 +1215,7 @@ static int gen8_check_mi_display_flip(struct parser_exec_state *s,
 	if (!info->async_flip)
 		return 0;
 
-	if (IS_SKYLAKE(dev_priv)) {
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
 		stride = vgpu_vreg(s->vgpu, info->stride_reg) & GENMASK(9, 0);
 		tile = (vgpu_vreg(s->vgpu, info->ctrl_reg) &
 				GENMASK(12, 10)) >> 10;
@@ -1243,7 +1243,7 @@ static int gen8_update_plane_mmio_from_mi_display_flip(
 
 	set_mask_bits(&vgpu_vreg(vgpu, info->surf_reg), GENMASK(31, 12),
 		      info->surf_val << 12);
-	if (IS_SKYLAKE(dev_priv)) {
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
 		set_mask_bits(&vgpu_vreg(vgpu, info->stride_reg), GENMASK(9, 0),
 			      info->stride_val);
 		set_mask_bits(&vgpu_vreg(vgpu, info->ctrl_reg), GENMASK(12, 10),
@@ -1267,7 +1267,7 @@ static int decode_mi_display_flip(struct parser_exec_state *s,
 
 	if (IS_BROADWELL(dev_priv))
 		return gen8_decode_mi_display_flip(s, info);
-	if (IS_SKYLAKE(dev_priv))
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
 		return skl_decode_mi_display_flip(s, info);
 
 	return -ENODEV;
@@ -1278,7 +1278,9 @@ static int check_mi_display_flip(struct parser_exec_state *s,
 {
 	struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;
 
-	if (IS_BROADWELL(dev_priv) || IS_SKYLAKE(dev_priv))
+	if (IS_BROADWELL(dev_priv)
+		|| IS_SKYLAKE(dev_priv)
+		|| IS_KABYLAKE(dev_priv))
 		return gen8_check_mi_display_flip(s, info);
 	return -ENODEV;
 }
@@ -1289,7 +1291,9 @@ static int update_plane_mmio_from_mi_display_flip(
 {
 	struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;
 
-	if (IS_BROADWELL(dev_priv) || IS_SKYLAKE(dev_priv))
+	if (IS_BROADWELL(dev_priv)
+		|| IS_SKYLAKE(dev_priv)
+		|| IS_KABYLAKE(dev_priv))
 		return gen8_update_plane_mmio_from_mi_display_flip(s, info);
 	return -ENODEV;
 }
@@ -1569,7 +1573,8 @@ static int batch_buffer_needs_scan(struct parser_exec_state *s)
 {
 	struct intel_gvt *gvt = s->vgpu->gvt;
 
-	if (IS_BROADWELL(gvt->dev_priv) || IS_SKYLAKE(gvt->dev_priv)) {
+	if (IS_BROADWELL(gvt->dev_priv) || IS_SKYLAKE(gvt->dev_priv)
+		|| IS_KABYLAKE(gvt->dev_priv)) {
 		/* BDW decides privilege based on address space */
 		if (cmd_val(s, 0) & (1 << 8))
 			return 0;
@@ -2604,6 +2609,9 @@ static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 	unsigned long gma_head, gma_tail, gma_bottom, ring_size, ring_tail;
 	struct parser_exec_state s;
 	int ret = 0;
+	struct intel_vgpu_workload *workload = container_of(wa_ctx,
+				struct intel_vgpu_workload,
+				wa_ctx);
 
 	/* ring base is page aligned */
 	if (WARN_ON(!IS_ALIGNED(wa_ctx->indirect_ctx.guest_gma, GTT_PAGE_SIZE)))
@@ -2618,14 +2626,14 @@ static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 
 	s.buf_type = RING_BUFFER_INSTRUCTION;
 	s.buf_addr_type = GTT_BUFFER;
-	s.vgpu = wa_ctx->workload->vgpu;
-	s.ring_id = wa_ctx->workload->ring_id;
+	s.vgpu = workload->vgpu;
+	s.ring_id = workload->ring_id;
 	s.ring_start = wa_ctx->indirect_ctx.guest_gma;
 	s.ring_size = ring_size;
 	s.ring_head = gma_head;
 	s.ring_tail = gma_tail;
 	s.rb_va = wa_ctx->indirect_ctx.shadow_va;
-	s.workload = wa_ctx->workload;
+	s.workload = workload;
 
 	ret = ip_gma_set(&s, gma_head);
 	if (ret)
@@ -2708,12 +2716,15 @@ static int shadow_indirect_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 {
 	int ctx_size = wa_ctx->indirect_ctx.size;
 	unsigned long guest_gma = wa_ctx->indirect_ctx.guest_gma;
-	struct intel_vgpu *vgpu = wa_ctx->workload->vgpu;
+	struct intel_vgpu_workload *workload = container_of(wa_ctx,
+					struct intel_vgpu_workload,
+					wa_ctx);
+	struct intel_vgpu *vgpu = workload->vgpu;
 	struct drm_i915_gem_object *obj;
 	int ret = 0;
 	void *map;
 
-	obj = i915_gem_object_create(wa_ctx->workload->vgpu->gvt->dev_priv,
+	obj = i915_gem_object_create(workload->vgpu->gvt->dev_priv,
 				     roundup(ctx_size + CACHELINE_BYTES,
 					     PAGE_SIZE));
 	if (IS_ERR(obj))
@@ -2733,8 +2744,8 @@ static int shadow_indirect_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 		goto unmap_src;
 	}
 
-	ret = copy_gma_to_hva(wa_ctx->workload->vgpu,
-				wa_ctx->workload->vgpu->gtt.ggtt_mm,
+	ret = copy_gma_to_hva(workload->vgpu,
+				workload->vgpu->gtt.ggtt_mm,
 				guest_gma, guest_gma + ctx_size,
 				map);
 	if (ret < 0) {
@@ -2772,7 +2783,10 @@ static int combine_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 int intel_gvt_scan_and_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 {
 	int ret;
-	struct intel_vgpu *vgpu = wa_ctx->workload->vgpu;
+	struct intel_vgpu_workload *workload = container_of(wa_ctx,
+					struct intel_vgpu_workload,
+					wa_ctx);
+	struct intel_vgpu *vgpu = workload->vgpu;
 
 	if (wa_ctx->indirect_ctx.size == 0)
 		return 0;

diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
@@ -161,8 +161,9 @@ static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = {
 
 #define DPCD_HEADER_SIZE        0xb
 
+/* let the virtual display supports DP1.2 */
 static u8 dpcd_fix_data[DPCD_HEADER_SIZE] = {
-	0x11, 0x0a, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+	0x12, 0x014, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
 
 static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
@@ -172,9 +173,20 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			SDE_PORTC_HOTPLUG_CPT |
 			SDE_PORTD_HOTPLUG_CPT);
 
-	if (IS_SKYLAKE(dev_priv))
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
 		vgpu_vreg(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT |
 				SDE_PORTE_HOTPLUG_SPT);
+		vgpu_vreg(vgpu, SKL_FUSE_STATUS) |=
+				SKL_FUSE_DOWNLOAD_STATUS |
+				SKL_FUSE_PG0_DIST_STATUS |
+				SKL_FUSE_PG1_DIST_STATUS |
+				SKL_FUSE_PG2_DIST_STATUS;
+		vgpu_vreg(vgpu, LCPLL1_CTL) |=
+				LCPLL_PLL_ENABLE |
+				LCPLL_PLL_LOCK;
+		vgpu_vreg(vgpu, LCPLL2_CTL) |= LCPLL_PLL_ENABLE;
+
+	}
 
 	if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) {
 		vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT;
@@ -191,7 +203,7 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 		vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED;
 	}
 
-	if (IS_SKYLAKE(dev_priv) &&
+	if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) &&
 			intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) {
 		vgpu_vreg(vgpu, SDEISR) |= SDE_PORTE_HOTPLUG_SPT;
 	}
@@ -353,7 +365,7 @@ void intel_vgpu_clean_display(struct intel_vgpu *vgpu)
 {
 	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
 
-	if (IS_SKYLAKE(dev_priv))
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
 		clean_virtual_dp_monitor(vgpu, PORT_D);
 	else
 		clean_virtual_dp_monitor(vgpu, PORT_B);
@@ -375,7 +387,7 @@ int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution)
 
 	intel_vgpu_init_i2c_edid(vgpu);
 
-	if (IS_SKYLAKE(dev_priv))
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
 		return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D,
 						resolution);
 	else

diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -394,9 +394,11 @@ static void prepare_shadow_batch_buffer(struct intel_vgpu_workload *workload)
 
 static int update_wa_ctx_2_shadow_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 {
-	int ring_id = wa_ctx->workload->ring_id;
-	struct i915_gem_context *shadow_ctx =
-		wa_ctx->workload->vgpu->shadow_ctx;
+	struct intel_vgpu_workload *workload = container_of(wa_ctx,
+					struct intel_vgpu_workload,
+					wa_ctx);
+	int ring_id = workload->ring_id;
+	struct i915_gem_context *shadow_ctx = workload->vgpu->shadow_ctx;
 	struct drm_i915_gem_object *ctx_obj =
 		shadow_ctx->engine[ring_id].state->obj;
 	struct execlist_ring_context *shadow_ring_context;
@@ -680,7 +682,6 @@ static int submit_context(struct intel_vgpu *vgpu, int ring_id,
 			CACHELINE_BYTES;
 		workload->wa_ctx.per_ctx.guest_gma =
 			per_ctx & PER_CTX_ADDR_MASK;
-		workload->wa_ctx.workload = workload;
 
 		WARN_ON(workload->wa_ctx.indirect_ctx.size && !(per_ctx & 0x1));
 	}

diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -2220,7 +2220,8 @@ int intel_gvt_init_gtt(struct intel_gvt *gvt)
 
 	gvt_dbg_core("init gtt\n");
 
-	if (IS_BROADWELL(gvt->dev_priv) || IS_SKYLAKE(gvt->dev_priv)) {
+	if (IS_BROADWELL(gvt->dev_priv) || IS_SKYLAKE(gvt->dev_priv)
+		|| IS_KABYLAKE(gvt->dev_priv)) {
 		gvt->gtt.pte_ops = &gen8_gtt_pte_ops;
 		gvt->gtt.gma_ops = &gen8_gtt_gma_ops;
 		gvt->gtt.mm_alloc_page_table = gen8_mm_alloc_page_table;

diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -106,7 +106,8 @@ static void init_device_info(struct intel_gvt *gvt)
 	struct intel_gvt_device_info *info = &gvt->device_info;
 	struct pci_dev *pdev = gvt->dev_priv->drm.pdev;
 
-	if (IS_BROADWELL(gvt->dev_priv) || IS_SKYLAKE(gvt->dev_priv)) {
+	if (IS_BROADWELL(gvt->dev_priv) || IS_SKYLAKE(gvt->dev_priv)
+		|| IS_KABYLAKE(gvt->dev_priv)) {
 		info->max_support_vgpus = 8;
 		info->cfg_space_size = 256;
 		info->mmio_size = 2 * 1024 * 1024;
@@ -143,6 +144,11 @@ static int gvt_service_thread(void *data)
 			intel_gvt_emulate_vblank(gvt);
 			mutex_unlock(&gvt->lock);
 		}
+
+		if (test_and_clear_bit(INTEL_GVT_REQUEST_SCHED,
+					(void *)&gvt->service_request)) {
+			intel_gvt_schedule(gvt);
+		}
 	}
 
 	return 0;
@@ -196,6 +202,8 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv)
 
 	idr_destroy(&gvt->vgpu_idr);
 
+	intel_gvt_destroy_idle_vgpu(gvt->idle_vgpu);
+
 	kfree(dev_priv->gvt);
 	dev_priv->gvt = NULL;
 }
@@ -214,6 +222,7 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv)
 int intel_gvt_init_device(struct drm_i915_private *dev_priv)
 {
 	struct intel_gvt *gvt;
+	struct intel_vgpu *vgpu;
 	int ret;
 
 	/*
@@ -286,6 +295,14 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv)
 		goto out_clean_types;
 	}
 
+	vgpu = intel_gvt_create_idle_vgpu(gvt);
+	if (IS_ERR(vgpu)) {
+		ret = PTR_ERR(vgpu);
+		gvt_err("failed to create idle vgpu\n");
+		goto out_clean_types;
+	}
+	gvt->idle_vgpu = vgpu;
+
 	gvt_dbg_core("gvt device initialization is done\n");
 	dev_priv->gvt = gvt;
 	return 0;

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -138,6 +138,10 @@ struct intel_vgpu_display {
 	struct intel_vgpu_sbi sbi;
 };
 
+struct vgpu_sched_ctl {
+	int weight;
+};
+
 struct intel_vgpu {
 	struct intel_gvt *gvt;
 	int id;
@@ -147,6 +151,7 @@ struct intel_vgpu {
 	bool failsafe;
 	bool resetting;
 	void *sched_data;
+	struct vgpu_sched_ctl sched_ctl;
 
 	struct intel_vgpu_fence fence;
 	struct intel_vgpu_gm gm;
@@ -160,6 +165,7 @@ struct intel_vgpu {
 	struct list_head workload_q_head[I915_NUM_ENGINES];
 	struct kmem_cache *workloads;
 	atomic_t running_workload_num;
+	ktime_t last_ctx_submit_time;
 	DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES);
 	struct i915_gem_context *shadow_ctx;
 
@@ -215,6 +221,7 @@ struct intel_vgpu_type {
 	unsigned int low_gm_size;
 	unsigned int high_gm_size;
 	unsigned int fence;
+	unsigned int weight;
 	enum intel_vgpu_edid resolution;
 };
 
@@ -236,6 +243,7 @@ struct intel_gvt {
 	DECLARE_HASHTABLE(cmd_table, GVT_CMD_HASH_BITS);
 	struct intel_vgpu_type *types;
 	unsigned int num_types;
+	struct intel_vgpu *idle_vgpu;
 
 	struct task_struct *service_thread;
 	wait_queue_head_t service_thread_wq;
@@ -249,6 +257,7 @@ static inline struct intel_gvt *to_gvt(struct drm_i915_private *i915)
 
 enum {
 	INTEL_GVT_REQUEST_EMULATE_VBLANK = 0,
+	INTEL_GVT_REQUEST_SCHED = 1,
 };
 
 static inline void intel_gvt_request_service(struct intel_gvt *gvt,
@@ -322,6 +331,8 @@ struct intel_vgpu_creation_params {
 	__u64 resolution;
 	__s32 primary;
 	__u64 vgpu_id;
+
+	__u32 weight;
 };
 
 int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu,
@@ -376,6 +387,8 @@ static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu,
 int intel_gvt_init_vgpu_types(struct intel_gvt *gvt);
 void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt);
 
+struct intel_vgpu *intel_gvt_create_idle_vgpu(struct intel_gvt *gvt);
+void intel_gvt_destroy_idle_vgpu(struct intel_vgpu *vgpu);
 struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt,
 					 struct intel_vgpu_type *type);
 void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu);