[PATCH v5 0/4] Reclassify messages from GuC loader/submission

[PATCH v5 0/4] Reclassify messages from GuC loader/submission

[Dave Gordon]

Various downgrading, upgrading, or general reorganisation of the
messages emitted by the GuC code. As general principles:

* "can't happen" cases (inconsistencies/misconfiguration) are ERRORs
* recoverable (ignored) errors are downgraded to WARNINGs
* important auxiliary messages about failure or mode change are NOTICEs
* anything else (messages for developer rather than sysadmin) is DEBUG

v4:
  Resend with added cover letter 

v5:
  Drop most of patch 1 (superseded by upstream changes).

Dave Gordon (4):
  drm: two more (drm_)printk() wrapper macros
  drm/i915/guc: downgrade some DRM_ERROR() messages to DRM_WARN()
  drm/i915/guc: revisit GuC loader message levels
  drm/i915/guc: next version of GuC firmware is 8.11

 drivers/gpu/drm/i915/i915_guc_submission.c | 18 ++++++--------
 drivers/gpu/drm/i915/i915_params.c         |  4 ++--
 drivers/gpu/drm/i915/intel_guc_loader.c    | 38 +++++++++++++++---------------
 include/drm/drmP.h                         |  9 +++++--
 4 files changed, 35 insertions(+), 34 deletions(-)

-- 
1.9.1

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[PATCH v5 1/4] drm: two more (drm_)printk() wrapper macros

[Dave Gordon]

We had only DRM_INFO() and DRM_ERROR(), whereas the underlying printk()
provides several other useful intermediate levels such as NOTICE and
WARNING. So this patch fills out the set by providing simple macros for
the additional levels. We don't provide _DEV_ or _ONCE or RATELIMITED
versions yet as it seems unlikely that they'll be as useful.

v2:
    Fix whitespace, missing ## (Eric Engestrom)
v5:
    Much simplified after underlying functions were reworked.

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Previously-Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v2)
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Cc: dri-devel@lists.freedesktop.org
---
 include/drm/drmP.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 94eb138..cd52624 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -168,6 +168,13 @@ void drm_printk(const char *level, unsigned int category,
 /** \name Macros to make printk easier */
 /*@{*/
 
+#define DRM_INFO(fmt, ...)						\
+	drm_printk(KERN_INFO, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
+#define DRM_NOTE(fmt, ...)						\
+	drm_printk(KERN_NOTICE, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
+#define DRM_WARN(fmt, ...)						\
+	drm_printk(KERN_WARNING, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
+
 /**
  * Error output.
  *
@@ -202,8 +209,6 @@ void drm_printk(const char *level, unsigned int category,
 #define DRM_DEV_INFO(dev, fmt, ...)					\
 	drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt,	\
 		       ##__VA_ARGS__)
-#define DRM_INFO(fmt, ...)						\
-	drm_printk(KERN_INFO, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
 
 #define DRM_DEV_INFO_ONCE(dev, fmt, ...)				\
 ({									\
-- 
1.9.1

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Re: [PATCH v5 1/4] drm: two more (drm_)printk() wrapper macros

[Chris Wilson]

On Fri, Aug 26, 2016 at 06:50:56PM +0100, Dave Gordon wrote:
> We had only DRM_INFO() and DRM_ERROR(), whereas the underlying printk()
> provides several other useful intermediate levels such as NOTICE and
> WARNING. So this patch fills out the set by providing simple macros for
> the additional levels. We don't provide _DEV_ or _ONCE or RATELIMITED
> versions yet as it seems unlikely that they'll be as useful.
> 
> v2:
>     Fix whitespace, missing ## (Eric Engestrom)
> v5:
>     Much simplified after underlying functions were reworked.
> 
> Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
> Previously-Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v2)
> Cc: Eric Engestrom <eric.engestrom@imgtec.com>
> Cc: dri-devel@lists.freedesktop.org

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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Re: [PATCH v5 1/4] drm: two more (drm_)printk() wrapper macros

[Eric Engestrom]

On Fri, Aug 26, 2016 at 06:50:56PM +0100, Dave Gordon wrote:
> We had only DRM_INFO() and DRM_ERROR(), whereas the underlying printk()
> provides several other useful intermediate levels such as NOTICE and
> WARNING. So this patch fills out the set by providing simple macros for
> the additional levels. We don't provide _DEV_ or _ONCE or RATELIMITED
> versions yet as it seems unlikely that they'll be as useful.
> 
> v2:
>     Fix whitespace, missing ## (Eric Engestrom)
> v5:
>     Much simplified after underlying functions were reworked.
> 
> Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
> Previously-Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v2)

My r-b still stands on the v5 (and I really like the simplification!)
Thanks for CC'ing me on the updates :)

Cheers,
  Eric

> Cc: Eric Engestrom <eric.engestrom@imgtec.com>
> Cc: dri-devel@lists.freedesktop.org
> ---
>  include/drm/drmP.h | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index 94eb138..cd52624 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -168,6 +168,13 @@ void drm_printk(const char *level, unsigned int category,
>  /** \name Macros to make printk easier */
>  /*@{*/
>  
> +#define DRM_INFO(fmt, ...)						\
> +	drm_printk(KERN_INFO, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
> +#define DRM_NOTE(fmt, ...)						\
> +	drm_printk(KERN_NOTICE, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
> +#define DRM_WARN(fmt, ...)						\
> +	drm_printk(KERN_WARNING, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
> +
>  /**
>   * Error output.
>   *
> @@ -202,8 +209,6 @@ void drm_printk(const char *level, unsigned int category,
>  #define DRM_DEV_INFO(dev, fmt, ...)					\
>  	drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt,	\
>  		       ##__VA_ARGS__)
> -#define DRM_INFO(fmt, ...)						\
> -	drm_printk(KERN_INFO, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
>  
>  #define DRM_DEV_INFO_ONCE(dev, fmt, ...)				\
>  ({									\
> -- 
> 1.9.1
> 
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Re: [PATCH v5 1/4] drm: two more (drm_)printk() wrapper macros

[Sean Paul]

On Fri, Aug 26, 2016 at 1:50 PM, Dave Gordon <david.s.gordon@intel.com> wrote:
> We had only DRM_INFO() and DRM_ERROR(), whereas the underlying printk()
> provides several other useful intermediate levels such as NOTICE and
> WARNING. So this patch fills out the set by providing simple macros for
> the additional levels. We don't provide _DEV_ or _ONCE or RATELIMITED
> versions yet as it seems unlikely that they'll be as useful.
>
> v2:
>     Fix whitespace, missing ## (Eric Engestrom)
> v5:
>     Much simplified after underlying functions were reworked.
>
> Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
> Previously-Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v2)
> Cc: Eric Engestrom <eric.engestrom@imgtec.com>
> Cc: dri-devel@lists.freedesktop.org
> ---
>  include/drm/drmP.h | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index 94eb138..cd52624 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -168,6 +168,13 @@ void drm_printk(const char *level, unsigned int category,
>  /** \name Macros to make printk easier */
>  /*@{*/
>
> +#define DRM_INFO(fmt, ...)                                             \
> +       drm_printk(KERN_INFO, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
> +#define DRM_NOTE(fmt, ...)                                             \
> +       drm_printk(KERN_NOTICE, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
> +#define DRM_WARN(fmt, ...)                                             \
> +       drm_printk(KERN_WARNING, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)

I think you should add the _DEV_ variants of these (and once this is
done, perhaps DRM_INFO should go back where it came from).

Sean

> +
>  /**
>   * Error output.
>   *
> @@ -202,8 +209,6 @@ void drm_printk(const char *level, unsigned int category,
>  #define DRM_DEV_INFO(dev, fmt, ...)                                    \
>         drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt,  \
>                        ##__VA_ARGS__)
> -#define DRM_INFO(fmt, ...)                                             \
> -       drm_printk(KERN_INFO, DRM_UT_NONE, __func__, "", fmt, ##__VA_ARGS__)
>
>  #define DRM_DEV_INFO_ONCE(dev, fmt, ...)                               \
>  ({                                                                     \
> --
> 1.9.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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[PATCH v5 2/4] drm/i915/guc: downgrade some DRM_ERROR() messages to DRM_WARN()

[Dave Gordon]

Where we're going to continue regardless of the problem, rather than
fail, then the message should be a WARNing rather than an ERROR.

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/i915_guc_submission.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index e436941..625d1b2 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -114,10 +114,8 @@ static int host2guc_action(struct intel_guc *guc, u32 *data, u32 len)
 		if (ret != -ETIMEDOUT)
 			ret = -EIO;
 
-		DRM_ERROR("GUC: host2guc action 0x%X failed. ret=%d "
-				"status=0x%08X response=0x%08X\n",
-				data[0], ret, status,
-				I915_READ(SOFT_SCRATCH(15)));
+		DRM_WARN("Action 0x%X failed; ret=%d status=0x%08X response=0x%08X\n",
+			 data[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
 
 		dev_priv->guc.action_fail += 1;
 		dev_priv->guc.action_err = ret;
@@ -551,8 +549,8 @@ static int guc_ring_doorbell(struct i915_guc_client *gc)
 		if (db_ret.db_status == GUC_DOORBELL_DISABLED)
 			break;
 
-		DRM_ERROR("Cookie mismatch. Expected %d, returned %d\n",
-			  db_cmp.cookie, db_ret.cookie);
+		DRM_WARN("Cookie mismatch. Expected %d, found %d\n",
+			 db_cmp.cookie, db_ret.cookie);
 
 		/* update the cookie to newly read cookie from GuC */
 		db_cmp.cookie = db_ret.cookie;
@@ -733,8 +731,8 @@ static void guc_init_doorbell_hw(struct intel_guc *guc)
 	/* Restore to original value */
 	err = guc_update_doorbell_id(guc, client, db_id);
 	if (err)
-		DRM_ERROR("Failed to restore doorbell to %d, err %d\n",
-			db_id, err);
+		DRM_WARN("Failed to restore doorbell to %d, err %d\n",
+			 db_id, err);
 
 	/* Read back & verify all doorbell registers */
 	for (i = 0; i < GUC_MAX_DOORBELLS; ++i)
@@ -823,8 +821,6 @@ static void guc_init_doorbell_hw(struct intel_guc *guc)
 	return client;
 
 err:
-	DRM_ERROR("FAILED to create priority %u GuC client!\n", priority);
-
 	guc_client_free(dev_priv, client);
 	return NULL;
 }
@@ -1004,7 +1000,7 @@ int i915_guc_submission_enable(struct drm_i915_private *dev_priv)
 				  GUC_CTX_PRIORITY_KMD_NORMAL,
 				  dev_priv->kernel_context);
 	if (!client) {
-		DRM_ERROR("Failed to create execbuf guc_client\n");
+		DRM_ERROR("Failed to create normal GuC client!\n");
 		return -ENOMEM;
 	}
 
-- 
1.9.1

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[PATCH v5 3/4] drm/i915/guc: revisit GuC loader message levels

[Dave Gordon]

Some downgraded from DRM_ERROR() to DRM_WARN() or DRM_NOTE(),
a few upgraded from DRM_INFO() to DRM_NOTE() or DRM_WARN(),
and one eliminated completely.

v2: different permutation of levels :)
v3: convert a couple of "this shouldn't happen" messages to WARN()

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/intel_guc_loader.c | 34 ++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index e67d8de..853928f 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -152,12 +152,14 @@ static u32 get_gttype(struct drm_i915_private *dev_priv)
 
 static u32 get_core_family(struct drm_i915_private *dev_priv)
 {
-	switch (INTEL_INFO(dev_priv)->gen) {
+	u32 gen = INTEL_GEN(dev_priv);
+
+	switch (gen) {
 	case 9:
 		return GFXCORE_FAMILY_GEN9;
 
 	default:
-		DRM_ERROR("GUC: unsupported core family\n");
+		WARN(1, "GEN%d does not support GuC operation!\n", gen);
 		return GFXCORE_FAMILY_UNKNOWN;
 	}
 }
@@ -447,7 +449,7 @@ int intel_guc_setup(struct drm_device *dev)
 		goto fail;
 	} else if (*fw_path == '\0') {
 		/* Device has a GuC but we don't know what f/w to load? */
-		DRM_INFO("No GuC firmware known for this platform\n");
+		WARN(1, "No GuC firmware known for this platform!\n");
 		err = -ENODEV;
 		goto fail;
 	}
@@ -485,10 +487,8 @@ int intel_guc_setup(struct drm_device *dev)
 		 * that the state and timing are fairly predictable
 		 */
 		err = i915_reset_guc(dev_priv);
-		if (err) {
-			DRM_ERROR("GuC reset failed: %d\n", err);
+		if (err)
 			goto fail;
-		}
 
 		err = guc_ucode_xfer(dev_priv);
 		if (!err)
@@ -546,15 +546,15 @@ int intel_guc_setup(struct drm_device *dev)
 	else if (err == 0)
 		DRM_INFO("GuC firmware load skipped\n");
 	else if (ret != -EIO)
-		DRM_INFO("GuC firmware load failed: %d\n", err);
+		DRM_NOTE("GuC firmware load failed: %d\n", err);
 	else
-		DRM_ERROR("GuC firmware load failed: %d\n", err);
+		DRM_WARN("GuC firmware load failed: %d\n", err);
 
 	if (i915.enable_guc_submission) {
 		if (fw_path == NULL)
 			DRM_INFO("GuC submission without firmware not supported\n");
 		if (ret == 0)
-			DRM_INFO("Falling back from GuC submission to execlist mode\n");
+			DRM_NOTE("Falling back from GuC submission to execlist mode\n");
 		else
 			DRM_ERROR("GuC init failed: %d\n", ret);
 	}
@@ -586,7 +586,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
 
 	/* Check the size of the blob before examining buffer contents */
 	if (fw->size < sizeof(struct guc_css_header)) {
-		DRM_ERROR("Firmware header is missing\n");
+		DRM_NOTE("Firmware header is missing\n");
 		goto fail;
 	}
 
@@ -598,7 +598,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
 		css->key_size_dw - css->exponent_size_dw) * sizeof(u32);
 
 	if (guc_fw->header_size != sizeof(struct guc_css_header)) {
-		DRM_ERROR("CSS header definition mismatch\n");
+		DRM_NOTE("CSS header definition mismatch\n");
 		goto fail;
 	}
 
@@ -608,7 +608,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
 
 	/* now RSA */
 	if (css->key_size_dw != UOS_RSA_SCRATCH_MAX_COUNT) {
-		DRM_ERROR("RSA key size is bad\n");
+		DRM_NOTE("RSA key size is bad\n");
 		goto fail;
 	}
 	guc_fw->rsa_offset = guc_fw->ucode_offset + guc_fw->ucode_size;
@@ -617,14 +617,14 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
 	/* At least, it should have header, uCode and RSA. Size of all three. */
 	size = guc_fw->header_size + guc_fw->ucode_size + guc_fw->rsa_size;
 	if (fw->size < size) {
-		DRM_ERROR("Missing firmware components\n");
+		DRM_NOTE("Missing firmware components\n");
 		goto fail;
 	}
 
 	/* Header and uCode will be loaded to WOPCM. Size of the two. */
 	size = guc_fw->header_size + guc_fw->ucode_size;
 	if (size > guc_wopcm_size(to_i915(dev))) {
-		DRM_ERROR("Firmware is too large to fit in WOPCM\n");
+		DRM_NOTE("Firmware is too large to fit in WOPCM\n");
 		goto fail;
 	}
 
@@ -639,7 +639,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
 
 	if (guc_fw->guc_fw_major_found != guc_fw->guc_fw_major_wanted ||
 	    guc_fw->guc_fw_minor_found < guc_fw->guc_fw_minor_wanted) {
-		DRM_ERROR("GuC firmware version %d.%d, required %d.%d\n",
+		DRM_NOTE("GuC firmware version %d.%d, required %d.%d\n",
 			guc_fw->guc_fw_major_found, guc_fw->guc_fw_minor_found,
 			guc_fw->guc_fw_major_wanted, guc_fw->guc_fw_minor_wanted);
 		err = -ENOEXEC;
@@ -669,10 +669,10 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
 	return;
 
 fail:
+	DRM_WARN("Failed to fetch valid GuC firmware from %s (error %d)\n",
+		 guc_fw->guc_fw_path, err);
 	DRM_DEBUG_DRIVER("GuC fw fetch status FAIL; err %d, fw %p, obj %p\n",
 		err, fw, guc_fw->guc_fw_obj);
-	DRM_ERROR("Failed to fetch GuC firmware from %s (error %d)\n",
-		  guc_fw->guc_fw_path, err);
 
 	mutex_lock(&dev->struct_mutex);
 	obj = guc_fw->guc_fw_obj;
-- 
1.9.1

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[PATCH v5 4/4] NOMERGE: next version of GuC firmware is 8.11

[Dave Gordon]

Update GuC firmware version to 8.11, and re-enable GuC loading and
submission by default on suitable platforms, since it's Intel's
Plan of Record that GuC submission shall be used where available.

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
---
 drivers/gpu/drm/i915/i915_params.c      | 4 ++--
 drivers/gpu/drm/i915/intel_guc_loader.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 768ad89..02419a6 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -55,8 +55,8 @@ struct i915_params i915 __read_mostly = {
 	.verbose_state_checks = 1,
 	.nuclear_pageflip = 0,
 	.edp_vswing = 0,
-	.enable_guc_loading = 0,
-	.enable_guc_submission = 0,
+	.enable_guc_loading = -1,
+	.enable_guc_submission = -1,
 	.guc_log_level = -1,
 	.enable_dp_mst = true,
 	.inject_load_failure = 0,
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index 853928f..ca937cf 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -59,8 +59,8 @@
  *
  */
 
-#define SKL_FW_MAJOR 6
-#define SKL_FW_MINOR 1
+#define SKL_FW_MAJOR 8
+#define SKL_FW_MINOR 11
 
 #define BXT_FW_MAJOR 8
 #define BXT_FW_MINOR 7
-- 
1.9.1

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✗ Fi.CI.BAT: warning for Reclassify messages from GuC loader/submission (rev5)

[Patchwork]

== Series Details ==

Series: Reclassify messages from GuC loader/submission (rev5)
URL   : https://patchwork.freedesktop.org/series/10918/
State : warning

== Summary ==

Series 10918v5 Reclassify messages from GuC loader/submission
http://patchwork.freedesktop.org/api/1.0/series/10918/revisions/5/mbox/

Test drv_hangman:
        Subgroup error-state-basic:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
Test drv_module_reload_basic:
                skip       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
Test gem_exec_suspend:
        Subgroup basic-s3:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
Test gem_ringfill:
        Subgroup basic-default-hang:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
Test kms_cursor_legacy:
        Subgroup basic-cursor-vs-flip-legacy:
                fail       -> PASS       (fi-bsw-n3050)
Test kms_pipe_crc_basic:
        Subgroup hang-read-crc-pipe-a:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
        Subgroup hang-read-crc-pipe-b:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
        Subgroup hang-read-crc-pipe-c:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
        Subgroup suspend-read-crc-pipe-a:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
        Subgroup suspend-read-crc-pipe-b:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)
        Subgroup suspend-read-crc-pipe-c:
                pass       -> DMESG-WARN (fi-skl-6260u)
                pass       -> DMESG-WARN (fi-skl-6700k)

fi-bdw-5557u     total:252  pass:235  dwarn:0   dfail:0   fail:2   skip:15 
fi-bsw-n3050     total:252  pass:205  dwarn:0   dfail:0   fail:1   skip:46 
fi-byt-n2820     total:252  pass:207  dwarn:0   dfail:0   fail:3   skip:42 
fi-hsw-4770k     total:252  pass:228  dwarn:0   dfail:0   fail:2   skip:22 
fi-hsw-4770r     total:252  pass:224  dwarn:0   dfail:0   fail:2   skip:26 
fi-ivb-3520m     total:252  pass:220  dwarn:0   dfail:0   fail:1   skip:31 
fi-skl-6260u     total:252  pass:226  dwarn:10  dfail:0   fail:2   skip:14 
fi-skl-6700k     total:252  pass:212  dwarn:10  dfail:0   fail:2   skip:28 
fi-snb-2520m     total:252  pass:207  dwarn:0   dfail:0   fail:2   skip:43 
fi-snb-2600      total:252  pass:207  dwarn:0   dfail:0   fail:2   skip:43 

Results at /archive/results/CI_IGT_test/Patchwork_2436/

cdc87252779fbb627d0bb05a2690f4abfa7d8160 drm-intel-nightly: 2016y-08m-26d-17h-15m-21s UTC integration manifest
3b0807c NOMERGE: next version of GuC firmware is 8.11
cccf148 drm/i915/guc: revisit GuC loader message levels
0b74e81 drm/i915/guc: downgrade some DRM_ERROR() messages to DRM_WARN()
ff5d073 drm: two more (drm_)printk() wrapper macros

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