Merge tag 'drm-intel-next-2018-04-13' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

First drm/i915 feature batch heading for v4.18:

- drm-next backmerge to fix build (Rodrigo)
- GPU documentation improvements (Kevin)
- GuC and HuC refactoring, host/GuC communication, logging, fixes, and more
  (mostly Michal and Michał, also Jackie, Michel and Piotr)
- PSR and PSR2 enabling and fixes (DK, José, Rodrigo and Chris)
- Selftest updates (Chris, Daniele)
- DPLL management refactoring (Lucas)
- DP MST fixes (Lyude and DK)
- Watermark refactoring and changes to support NV12 (Mahesh)
- NV12 prep work (Chandra)
- Icelake Combo PHY enablers (Manasi)
- Perf OA refactoring and ICL enabling (Lionel)
- ICL enabling (Oscar, Paulo, Nabendu, Mika, Kelvin, Michel)
- Workarounds refactoring (Oscar)
- HDCP fixes and improvements (Ramalingam, Radhakrishna)
- Power management fixes (Imre)
- Various display fixes (Maarten, Ville, Vidya, Jani, Gaurav)
- debugfs for FIFO underrun clearing (Maarten)
- Execlist improvements (Chris)
- Reset improvements (Chris)
- Plenty of things here and there I overlooked and/or didn't understand... (Everyone)

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87lgd2cze8.fsf@intel.com

85 files changed, 7115 insertions, 3691 deletions

diff --git a/drivers/gpu/drm/i915/Kconfig.debug b/drivers/gpu/drm/i915/Kconfig.debug
index 108d21f34777..80efee1ff7f3 100644
--- a/drivers/gpu/drm/i915/Kconfig.debug
+++ b/drivers/gpu/drm/i915/Kconfig.debug
@@ -25,6 +25,7 @@ config DRM_I915_DEBUG
         select X86_MSR # used by igt/pm_rpm
         select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks)
         select DRM_DEBUG_MM if DRM=y
+        select STACKDEPOT if DRM=y # for DRM_DEBUG_MM
 	select DRM_DEBUG_MM_SELFTEST
 	select SW_SYNC # signaling validation framework (igt/syncobj*)
 	select DRM_I915_SW_FENCE_DEBUG_OBJECTS
@@ -89,6 +90,18 @@ config DRM_I915_SW_FENCE_CHECK_DAG
 
           If in doubt, say "N".
 
+config DRM_I915_DEBUG_GUC
+        bool "Enable additional driver debugging for GuC"
+        depends on DRM_I915
+        default n
+        help
+          Choose this option to turn on extra driver debugging that may affect
+          performance but will help resolve GuC related issues.
+
+          Recommended for driver developers only.
+
+          If in doubt, say "N".
+
 config DRM_I915_SELFTEST
 	bool "Enable selftests upon driver load"
 	depends on DRM_I915
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 4eee91a3a236..9bee52a949a9 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -12,7 +12,7 @@
 # Note the danger in using -Wall -Wextra is that when CI updates gcc we
 # will most likely get a sudden build breakage... Hopefully we will fix
 # new warnings before CI updates!
-subdir-ccflags-y := -Wall -Wextra
+subdir-ccflags-y := -Wall -Wextra -Wvla
 subdir-ccflags-y += $(call cc-disable-warning, unused-parameter)
 subdir-ccflags-y += $(call cc-disable-warning, type-limits)
 subdir-ccflags-y += $(call cc-disable-warning, missing-field-initializers)
@@ -43,7 +43,8 @@ i915-y := i915_drv.o \
 	  intel_csr.o \
 	  intel_device_info.o \
 	  intel_pm.o \
-	  intel_runtime_pm.o
+	  intel_runtime_pm.o \
+	  intel_workarounds.o
 
 i915-$(CONFIG_COMPAT)   += i915_ioc32.o
 i915-$(CONFIG_DEBUG_FS) += i915_debugfs.o intel_pipe_crc.o
@@ -79,7 +80,8 @@ i915-y += i915_cmd_parser.o \
 	  intel_lrc.o \
 	  intel_mocs.o \
 	  intel_ringbuffer.o \
-	  intel_uncore.o
+	  intel_uncore.o \
+	  intel_wopcm.o
 
 # general-purpose microcontroller (GuC) support
 i915-y += intel_uc.o \
@@ -171,7 +173,8 @@ i915-y += i915_perf.o \
 	  i915_oa_glk.o \
 	  i915_oa_cflgt2.o \
 	  i915_oa_cflgt3.o \
-	  i915_oa_cnl.o
+	  i915_oa_cnl.o \
+	  i915_oa_icl.o
 
 ifeq ($(CONFIG_DRM_I915_GVT),y)
 i915-y += intel_gvt.o
diff --git a/drivers/gpu/drm/i915/gvt/debugfs.c b/drivers/gpu/drm/i915/gvt/debugfs.c
index 32a66dfdf112..f7d0078eb61b 100644
--- a/drivers/gpu/drm/i915/gvt/debugfs.c
+++ b/drivers/gpu/drm/i915/gvt/debugfs.c
@@ -122,18 +122,7 @@ static int vgpu_mmio_diff_show(struct seq_file *s, void *unused)
 	seq_printf(s, "Total: %d, Diff: %d\n", param.total, param.diff);
 	return 0;
 }
-
-static int vgpu_mmio_diff_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, vgpu_mmio_diff_show, inode->i_private);
-}
-
-static const struct file_operations vgpu_mmio_diff_fops = {
-	.open		= vgpu_mmio_diff_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(vgpu_mmio_diff);
 
 /**
  * intel_gvt_debugfs_add_vgpu - register debugfs entries for a vGPU
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 89f7ff2c652e..2e6652a9bb9e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1215,20 +1215,20 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 		max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
 			    rp_state_cap >> 16) & 0xff;
 		max_freq *= (IS_GEN9_BC(dev_priv) ||
-			     IS_CANNONLAKE(dev_priv) ? GEN9_FREQ_SCALER : 1);
+			     INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
 		seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
 			   intel_gpu_freq(dev_priv, max_freq));
 
 		max_freq = (rp_state_cap & 0xff00) >> 8;
 		max_freq *= (IS_GEN9_BC(dev_priv) ||
-			     IS_CANNONLAKE(dev_priv) ? GEN9_FREQ_SCALER : 1);
+			     INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
 		seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
 			   intel_gpu_freq(dev_priv, max_freq));
 
 		max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 :
 			    rp_state_cap >> 0) & 0xff;
 		max_freq *= (IS_GEN9_BC(dev_priv) ||
-			     IS_CANNONLAKE(dev_priv) ? GEN9_FREQ_SCALER : 1);
+			     INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
 		seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
 			   intel_gpu_freq(dev_priv, max_freq));
 		seq_printf(m, "Max overclocked frequency: %dMHz\n",
@@ -1796,9 +1796,9 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
 {
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
 	struct intel_rps *rps = &dev_priv->gt_pm.rps;
-	int ret = 0;
-	int gpu_freq, ia_freq;
 	unsigned int max_gpu_freq, min_gpu_freq;
+	int gpu_freq, ia_freq;
+	int ret;
 
 	if (!HAS_LLC(dev_priv))
 		return -ENODEV;
@@ -1809,13 +1809,12 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
 	if (ret)
 		goto out;
 
-	if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+	min_gpu_freq = rps->min_freq;
+	max_gpu_freq = rps->max_freq;
+	if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
 		/* Convert GT frequency to 50 HZ units */
-		min_gpu_freq = rps->min_freq_softlimit / GEN9_FREQ_SCALER;
-		max_gpu_freq = rps->max_freq_softlimit / GEN9_FREQ_SCALER;
-	} else {
-		min_gpu_freq = rps->min_freq_softlimit;
-		max_gpu_freq = rps->max_freq_softlimit;
+		min_gpu_freq /= GEN9_FREQ_SCALER;
+		max_gpu_freq /= GEN9_FREQ_SCALER;
 	}
 
 	seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
@@ -1828,7 +1827,7 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
 		seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
 			   intel_gpu_freq(dev_priv, (gpu_freq *
 						     (IS_GEN9_BC(dev_priv) ||
-						      IS_CANNONLAKE(dev_priv) ?
+						      INTEL_GEN(dev_priv) >= 10 ?
 						      GEN9_FREQ_SCALER : 1))),
 			   ((ia_freq >> 0) & 0xff) * 100,
 			   ((ia_freq >> 8) & 0xff) * 100);
@@ -1923,8 +1922,8 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
 
 static void describe_ctx_ring(struct seq_file *m, struct intel_ring *ring)
 {
-	seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u)",
-		   ring->space, ring->head, ring->tail);
+	seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, emit: %u)",
+		   ring->space, ring->head, ring->tail, ring->emit);
 }
 
 static int i915_context_status(struct seq_file *m, void *unused)
@@ -2326,30 +2325,45 @@ static int i915_guc_load_status_info(struct seq_file *m, void *data)
 	return 0;
 }
 
-static void i915_guc_log_info(struct seq_file *m,
-			      struct drm_i915_private *dev_priv)
+static const char *
+stringify_guc_log_type(enum guc_log_buffer_type type)
 {
-	struct intel_guc *guc = &dev_priv->guc;
+	switch (type) {
+	case GUC_ISR_LOG_BUFFER:
+		return "ISR";
+	case GUC_DPC_LOG_BUFFER:
+		return "DPC";
+	case GUC_CRASH_DUMP_LOG_BUFFER:
+		return "CRASH";
+	default:
+		MISSING_CASE(type);
+	}
 
-	seq_puts(m, "\nGuC logging stats:\n");
+	return "";
+}
 
-	seq_printf(m, "\tISR:   flush count %10u, overflow count %10u\n",
-		   guc->log.flush_count[GUC_ISR_LOG_BUFFER],
-		   guc->log.total_overflow_count[GUC_ISR_LOG_BUFFER]);
+static void i915_guc_log_info(struct seq_file *m,
+			      struct drm_i915_private *dev_priv)
+{
+	struct intel_guc_log *log = &dev_priv->guc.log;
+	enum guc_log_buffer_type type;
 
-	seq_printf(m, "\tDPC:   flush count %10u, overflow count %10u\n",
-		   guc->log.flush_count[GUC_DPC_LOG_BUFFER],
-		   guc->log.total_overflow_count[GUC_DPC_LOG_BUFFER]);
+	if (!intel_guc_log_relay_enabled(log)) {
+		seq_puts(m, "GuC log relay disabled\n");
+		return;
+	}
 
-	seq_printf(m, "\tCRASH: flush count %10u, overflow count %10u\n",
-		   guc->log.flush_count[GUC_CRASH_DUMP_LOG_BUFFER],
-		   guc->log.total_overflow_count[GUC_CRASH_DUMP_LOG_BUFFER]);
+	seq_puts(m, "GuC logging stats:\n");
 
-	seq_printf(m, "\tTotal flush interrupt count: %u\n",
-		   guc->log.flush_interrupt_count);
+	seq_printf(m, "\tRelay full count: %u\n",
+		   log->relay.full_count);
 
-	seq_printf(m, "\tCapture miss count: %u\n",
-		   guc->log.capture_miss_count);
+	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
+		seq_printf(m, "\t%s:\tflush count %10u, overflow count %10u\n",
+			   stringify_guc_log_type(type),
+			   log->stats[type].flush,
+			   log->stats[type].sampled_overflow);
+	}
 }
 
 static void i915_guc_client_info(struct seq_file *m,
@@ -2379,14 +2393,19 @@ static int i915_guc_info(struct seq_file *m, void *data)
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
 	const struct intel_guc *guc = &dev_priv->guc;
 
-	if (!USES_GUC_SUBMISSION(dev_priv))
+	if (!USES_GUC(dev_priv))
 		return -ENODEV;
 
+	i915_guc_log_info(m, dev_priv);
+
+	if (!USES_GUC_SUBMISSION(dev_priv))
+		return 0;
+
 	GEM_BUG_ON(!guc->execbuf_client);
 
-	seq_printf(m, "Doorbell map:\n");
+	seq_printf(m, "\nDoorbell map:\n");
 	seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap);
-	seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc->db_cacheline);
+	seq_printf(m, "Doorbell next cacheline: 0x%x\n", guc->db_cacheline);
 
 	seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client);