Merge tag 'drm-intel-next-fixes-2018-08-06' of...

Merge tag 'drm-intel-next-fixes-2018-08-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Fix gvt compilation broken on a silent conflict on fixes vs next merge
- Fix runtime PM for LPE audio
- Revert on ICL workaround
- Interactive RPS mode
- Fix for PSR sink status report
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180806233034.GA20655@intel.com

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

@@ -185,12 +185,6 @@ static int gvt_dma_map_page(struct intel_vgpu *vgpu, unsigned long gfn,
 	if (ret)
 		return ret;
 
-	if (!pfn_valid(pfn)) {
-		gvt_vgpu_err("pfn 0x%lx is not mem backed\n", pfn);
-		vfio_unpin_pages(mdev_dev(vgpu->vdev.mdev), &gfn, 1);
-		return -EINVAL;
-	}
-
 	/* Setup DMA mapping. */
 	*dma_addr = dma_map_page(dev, page, 0, size, PCI_DMA_BIDIRECTIONAL);
 	ret = dma_mapping_error(dev, *dma_addr);

drivers/gpu/drm/i915/i915_debugfs.c

@@ -1218,7 +1218,8 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 			   rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
 		seq_printf(m, "RP PREV UP: %d (%dus)\n",
 			   rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
-		seq_printf(m, "Up threshold: %d%%\n", rps->up_threshold);
+		seq_printf(m, "Up threshold: %d%%\n",
+			   rps->power.up_threshold);
 
 		seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
 			   rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
@@ -1226,7 +1227,8 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 			   rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
 		seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
 			   rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
-		seq_printf(m, "Down threshold: %d%%\n", rps->down_threshold);
+		seq_printf(m, "Down threshold: %d%%\n",
+			   rps->power.down_threshold);
 
 		max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
 			    rp_state_cap >> 16) & 0xff;
@@ -2218,6 +2220,7 @@ static int i915_rps_boost_info(struct seq_file *m, void *data)
 	seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv));
 	seq_printf(m, "Boosts outstanding? %d\n",
 		   atomic_read(&rps->num_waiters));
+	seq_printf(m, "Interactive? %d\n", READ_ONCE(rps->power.interactive));
 	seq_printf(m, "Frequency requested %d\n",
 		   intel_gpu_freq(dev_priv, rps->cur_freq));
 	seq_printf(m, "  min hard:%d, soft:%d; max soft:%d, hard:%d\n",
@@ -2261,13 +2264,13 @@ static int i915_rps_boost_info(struct seq_file *m, void *data)
 		intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
 
 		seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
-			   rps_power_to_str(rps->power));
+			   rps_power_to_str(rps->power.mode));
 		seq_printf(m, "  Avg. up: %d%% [above threshold? %d%%]\n",
 			   rpup && rpupei ? 100 * rpup / rpupei : 0,
-			   rps->up_threshold);
+			   rps->power.up_threshold);
 		seq_printf(m, "  Avg. down: %d%% [below threshold? %d%%]\n",
 			   rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
-			   rps->down_threshold);
+			   rps->power.down_threshold);
 	} else {
 		seq_puts(m, "\nRPS Autotuning inactive\n");
 	}
@@ -2606,13 +2609,22 @@ static int i915_psr_sink_status_show(struct seq_file *m, void *data)
 		"sink internal error",
 	};
 	struct drm_connector *connector = m->private;
+	struct drm_i915_private *dev_priv = to_i915(connector->dev);
 	struct intel_dp *intel_dp =
 		enc_to_intel_dp(&intel_attached_encoder(connector)->base);
+	int ret;
+
+	if (!CAN_PSR(dev_priv)) {
+		seq_puts(m, "PSR Unsupported\n");
+		return -ENODEV;
+	}
 
 	if (connector->status != connector_status_connected)
 		return -ENODEV;
 
-	if (drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_STATUS, &val) == 1) {
+	ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_STATUS, &val);
+
+	if (ret == 1) {
 		const char *str = "unknown";
 
 		val &= DP_PSR_SINK_STATE_MASK;
@@ -2620,7 +2632,7 @@ static int i915_psr_sink_status_show(struct seq_file *m, void *data)
 			str = sink_status[val];
 		seq_printf(m, "Sink PSR status: 0x%x [%s]\n", val, str);
 	} else {
-		DRM_ERROR("dpcd read (at %u) failed\n", DP_PSR_STATUS);
+		return ret;
 	}
 
 	return 0;

drivers/gpu/drm/i915/i915_drv.h

@@ -779,11 +779,17 @@ struct intel_rps {
 	u8 rp0_freq;		/* Non-overclocked max frequency. */
 	u16 gpll_ref_freq;	/* vlv/chv GPLL reference frequency */
 
+	int last_adj;
+
+	struct {
+		struct mutex mutex;
+
+		enum { LOW_POWER, BETWEEN, HIGH_POWER } mode;
+		unsigned int interactive;
+
 		u8 up_threshold; /* Current %busy required to uplock */
 		u8 down_threshold; /* Current %busy required to downclock */
-
-	int last_adj;
-	enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
+	} power;
 
 	bool enabled;
 	atomic_t num_waiters;
@@ -3422,6 +3428,8 @@ extern void i915_redisable_vga_power_on(struct drm_i915_private *dev_priv);
 extern bool ironlake_set_drps(struct drm_i915_private *dev_priv, u8 val);
 extern void intel_init_pch_refclk(struct drm_i915_private *dev_priv);
 extern int intel_set_rps(struct drm_i915_private *dev_priv, u8 val);
+extern void intel_rps_mark_interactive(struct drm_i915_private *i915,
+				       bool interactive);
 extern bool intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
 				  bool enable);
 

drivers/gpu/drm/i915/i915_irq.c

@@ -1265,9 +1265,9 @@ static u32 vlv_wa_c0_ei(struct drm_i915_private *dev_priv, u32 pm_iir)
 		c0 = max(render, media);
 		c0 *= 1000 * 100 << 8; /* to usecs and scale to threshold% */
 
-		if (c0 > time * rps->up_threshold)
+		if (c0 > time * rps->power.up_threshold)
 			events = GEN6_PM_RP_UP_THRESHOLD;
-		else if (c0 < time * rps->down_threshold)
+		else if (c0 < time * rps->power.down_threshold)
 			events = GEN6_PM_RP_DOWN_THRESHOLD;
 	}
 

drivers/gpu/drm/i915/i915_reg.h

@@ -2780,9 +2780,6 @@ enum i915_power_well_id {
 #define   GEN8_4x4_STC_OPTIMIZATION_DISABLE	(1 << 6)
 #define   GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE	(1 << 1)
 
-#define GEN10_CACHE_MODE_SS			_MMIO(0xe420)
-#define   FLOAT_BLEND_OPTIMIZATION_ENABLE	(1 << 4)
-
 #define GEN6_BLITTER_ECOSKPD	_MMIO(0x221d0)
 #define   GEN6_BLITTER_LOCK_SHIFT			16
 #define   GEN6_BLITTER_FBC_NOTIFY			(1 << 3)

drivers/gpu/drm/i915/intel_display.c

@@ -13104,6 +13104,19 @@ intel_prepare_plane_fb(struct drm_plane *plane,
 		add_rps_boost_after_vblank(new_state->crtc, new_state->fence);
 	}
 
+	/*
+	 * We declare pageflips to be interactive and so merit a small bias
+	 * towards upclocking to deliver the frame on time. By only changing
+	 * the RPS thresholds to sample more regularly and aim for higher
+	 * clocks we can hopefully deliver low power workloads (like kodi)
+	 * that are not quite steady state without resorting to forcing
+	 * maximum clocks following a vblank miss (see do_rps_boost()).
+	 */
+	if (!intel_state->rps_interactive) {
+		intel_rps_mark_interactive(dev_priv, true);
+		intel_state->rps_interactive = true;
+	}
+
 	return 0;
 }
 
@@ -13120,8 +13133,15 @@ void
 intel_cleanup_plane_fb(struct drm_plane *plane,
 		       struct drm_plane_state *old_state)
 {
+	struct intel_atomic_state *intel_state =
+		to_intel_atomic_state(old_state->state);
 	struct drm_i915_private *dev_priv = to_i915(plane->dev);
 
+	if (intel_state->rps_interactive) {
+		intel_rps_mark_interactive(dev_priv, false);
+		intel_state->rps_interactive = false;
+	}
+
 	/* Should only be called after a successful intel_prepare_plane_fb()! */
 	mutex_lock(&dev_priv->drm.struct_mutex);
 	intel_plane_unpin_fb(to_intel_plane_state(old_state));

drivers/gpu/drm/i915/intel_drv.h

@@ -484,6 +484,8 @@ struct intel_atomic_state {
 	 */
 	bool skip_intermediate_wm;
 
+	bool rps_interactive;
+
 	/* Gen9+ only */
 	struct skl_ddb_values wm_results;
 

drivers/gpu/drm/i915/intel_lpe_audio.c

@@ -126,9 +126,7 @@ lpe_audio_platdev_create(struct drm_i915_private *dev_priv)
 		return platdev;
 	}
 
-	pm_runtime_forbid(&platdev->dev);
-	pm_runtime_set_active(&platdev->dev);
-	pm_runtime_enable(&platdev->dev);
+	pm_runtime_no_callbacks(&platdev->dev);
 
 	return platdev;
 }

drivers/gpu/drm/i915/intel_pm.c

@@ -6264,42 +6264,15 @@ static u32 intel_rps_limits(struct drm_i915_private *dev_priv, u8 val)
 	return limits;
 }
 
-static void gen6_set_rps_thresholds(struct drm_i915_private *dev_priv, u8 val)
+static void rps_set_power(struct drm_i915_private *dev_priv, int new_power)
 {
 	struct intel_rps *rps = &dev_priv->gt_pm.rps;
-	int new_power;
 	u32 threshold_up = 0, threshold_down = 0; /* in % */
 	u32 ei_up = 0, ei_down = 0;
 
-	new_power = rps->power;
-	switch (rps->power) {
-	case LOW_POWER:
-		if (val > rps->efficient_freq + 1 &&
-		    val > rps->cur_freq)
-			new_power = BETWEEN;
-		break;
-
-	case BETWEEN:
-		if (val <= rps->efficient_freq &&
-		    val < rps->cur_freq)
-			new_power = LOW_POWER;
-		else if (val >= rps->rp0_freq &&
-			 val > rps->cur_freq)
-			new_power = HIGH_POWER;
-		break;
+	lockdep_assert_held(&rps->power.mutex);
 
-	case HIGH_POWER:
-		if (val < (rps->rp1_freq + rps->rp0_freq) >> 1 &&
-		    val < rps->cur_freq)
-			new_power = BETWEEN;
-		break;
-	}
-	/* Max/min bins are special */
-	if (val <= rps->min_freq_softlimit)
-		new_power = LOW_POWER;
-	if (val >= rps->max_freq_softlimit)
-		new_power = HIGH_POWER;
-	if (new_power == rps->power)
+	if (new_power == rps->power.mode)
 		return;
 
 	/* Note the units here are not exactly 1us, but 1280ns. */
@@ -6362,12 +6335,71 @@ static void gen6_set_rps_thresholds(struct drm_i915_private *dev_priv, u8 val)
 		   GEN6_RP_DOWN_IDLE_AVG);
 
 skip_hw_write:
-	rps->power = new_power;
-	rps->up_threshold = threshold_up;
-	rps->down_threshold = threshold_down;
+	rps->power.mode = new_power;
+	rps->power.up_threshold = threshold_up;
+	rps->power.down_threshold = threshold_down;
+}
+
+static void gen6_set_rps_thresholds(struct drm_i915_private *dev_priv, u8 val)
+{
+	struct intel_rps *rps = &dev_priv->gt_pm.rps;
+	int new_power;
+
+	new_power = rps->power.mode;
+	switch (rps->power.mode) {
+	case LOW_POWER:
+		if (val > rps->efficient_freq + 1 &&
+		    val > rps->cur_freq)
+			new_power = BETWEEN;
+		break;
+
+	case BETWEEN:
+		if (val <= rps->efficient_freq &&
+		    val < rps->cur_freq)
+			new_power = LOW_POWER;
+		else if (val >= rps->rp0_freq &&
+			 val > rps->cur_freq)
+			new_power = HIGH_POWER;
+		break;
+
+	case HIGH_POWER:
+		if (val < (rps->rp1_freq + rps->rp0_freq) >> 1 &&
+		    val < rps->cur_freq)
+			new_power = BETWEEN;
+		break;
+	}
+	/* Max/min bins are special */
+	if (val <= rps->min_freq_softlimit)
+		new_power = LOW_POWER;
+	if (val >= rps->max_freq_softlimit)
+		new_power = HIGH_POWER;
+
+	mutex_lock(&rps->power.mutex);
+	if (rps->power.interactive)
+		new_power = HIGH_POWER;
+	rps_set_power(dev_priv, new_power);
+	mutex_unlock(&rps->power.mutex);
 	rps->last_adj = 0;
 }
 
+void intel_rps_mark_interactive(struct drm_i915_private *i915, bool interactive)
+{
+	struct intel_rps *rps = &i915->gt_pm.rps;
+
+	if (INTEL_GEN(i915) < 6)
+		return;
+
+	mutex_lock(&rps->power.mutex);
+	if (interactive) {
+		if (!rps->power.interactive++ && READ_ONCE(i915->gt.awake))
+			rps_set_power(i915, HIGH_POWER);
+	} else {
+		GEM_BUG_ON(!rps->power.interactive);
+		rps->power.interactive--;
+	}
+	mutex_unlock(&rps->power.mutex);
+}
+
 static u32 gen6_rps_pm_mask(struct drm_i915_private *dev_priv, u8 val)
 {
 	struct intel_rps *rps = &dev_priv->gt_pm.rps;
@@ -6780,7 +6812,7 @@ static void reset_rps(struct drm_i915_private *dev_priv,
 	u8 freq = rps->cur_freq;
 
 	/* force a reset */
-	rps->power = -1;
+	rps->power.mode = -1;
 	rps->cur_freq = -1;
 
 	if (set(dev_priv, freq))
@@ -9604,6 +9636,7 @@ int intel_freq_opcode(struct drm_i915_private *dev_priv, int val)
 void intel_pm_setup(struct drm_i915_private *dev_priv)
 {
 	mutex_init(&dev_priv->pcu_lock);
+	mutex_init(&dev_priv->gt_pm.rps.power.mutex);
 
 	atomic_set(&dev_priv->gt_pm.rps.num_waiters, 0);
 

drivers/gpu/drm/i915/intel_workarounds.c

@@ -508,9 +508,6 @@ static int icl_ctx_workarounds_init(struct drm_i915_private *dev_priv)
 		WA_SET_BIT_MASKED(GEN11_COMMON_SLICE_CHICKEN3,
 				  GEN11_BLEND_EMB_FIX_DISABLE_IN_RCC);
 
-	/* WaEnableFloatBlendOptimization:icl */
-	WA_SET_BIT_MASKED(GEN10_CACHE_MODE_SS, FLOAT_BLEND_OPTIMIZATION_ENABLE);
-
 	return 0;
 }