diff mbox

[2/2] drm/i915: Fix DEIER and GTIER collecting for BDW.

Message ID 1406909608-13935-1-git-send-email-rodrigo.vivi@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Rodrigo Vivi Aug. 1, 2014, 4:13 p.m. UTC
BDW has many other Display Engine interrupts and GT interrupts registers.
Collecting it properly on gpu_error_state.

On debugfs all was properly listed already but besides we were also listing old
DEIER and GTIER that doesn't exist on BDW anymore. This was causing
unclaimed register messages:

https://bugs.freedesktop.org/show_bug.cgi?id=81701

v2: Fix small issues of first version and don't read DEIER regs when pipe's
    power well is disabled
v3: bikeshed accepted: use enum pipe pipe instead of int i for pipe interection

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c   |  4 ++++
 drivers/gpu/drm/i915/i915_drv.h       |  4 +++-
 drivers/gpu/drm/i915/i915_gpu_error.c | 32 ++++++++++++++++++++++++++++----
 3 files changed, 35 insertions(+), 5 deletions(-)

Comments

Paulo Zanoni Aug. 4, 2014, 2:44 p.m. UTC | #1
2014-08-01 13:13 GMT-03:00 Rodrigo Vivi <rodrigo.vivi@intel.com>:
> BDW has many other Display Engine interrupts and GT interrupts registers.
> Collecting it properly on gpu_error_state.
>
> On debugfs all was properly listed already but besides we were also listing old
> DEIER and GTIER that doesn't exist on BDW anymore. This was causing
> unclaimed register messages:
>
> https://bugs.freedesktop.org/show_bug.cgi?id=81701
>
> v2: Fix small issues of first version and don't read DEIER regs when pipe's
>     power well is disabled
> v3: bikeshed accepted: use enum pipe pipe instead of int i for pipe interection

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

>
> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c   |  4 ++++
>  drivers/gpu/drm/i915/i915_drv.h       |  4 +++-
>  drivers/gpu/drm/i915/i915_gpu_error.c | 32 ++++++++++++++++++++++++++++----
>  3 files changed, 35 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 9e737b7..b3493d3 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -703,6 +703,10 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
>                 }
>
>                 for_each_pipe(pipe) {
> +                       if (!intel_display_power_enabled(dev_priv,
> +                                                        POWER_DOMAIN_PIPE(pipe)))
> +                               continue;
> +
>                         seq_printf(m, "Pipe %c IMR:\t%08x\n",
>                                    pipe_name(pipe),
>                                    I915_READ(GEN8_DE_PIPE_IMR(pipe)));
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 60227b2..d1ae952 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -317,7 +317,9 @@ struct drm_i915_error_state {
>         u32 eir;
>         u32 pgtbl_er;
>         u32 ier;
> -       u32 gtier;
> +       u32 gtier[4];
> +       u32 deier[3];
> +       u32 de_misc_ier;
>         u32 ccid;
>         u32 derrmr;
>         u32 forcewake;
> diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
> index c8f901f..402b621 100644
> --- a/drivers/gpu/drm/i915/i915_gpu_error.c
> +++ b/drivers/gpu/drm/i915/i915_gpu_error.c
> @@ -328,6 +328,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
>         struct drm_i915_private *dev_priv = dev->dev_private;
>         struct drm_i915_error_state *error = error_priv->error;
>         struct drm_i915_error_object *obj;
> +       enum pipe pipe;
>         int i, j, offset, elt;
>         int max_hangcheck_score;
>
> @@ -359,8 +360,20 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
>         err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device);
>         err_printf(m, "EIR: 0x%08x\n", error->eir);
>         err_printf(m, "IER: 0x%08x\n", error->ier);
> +       if (IS_BROADWELL(dev)) {
> +               for_each_pipe(pipe)
> +                       err_printf(m, "DEIER pipe %c: 0x%08x\n",
> +                                  pipe_name(pipe),
> +                                  error->deier[pipe]);
> +               for (i = 0; i < 4; i++)
> +                       err_printf(m, "GTIER gt %d: 0x%08x\n", i,
> +                                  error->gtier[i]);
> +               err_printf(m, "DE_MISC_IER: 0x%08x\n", error->de_misc_ier);
> +       } else {
> +               err_printf(m, "IER: 0x%08x\n", error->ier);
> +       }
>         if (HAS_PCH_SPLIT(dev) || IS_VALLEYVIEW(dev))
> -               err_printf(m, "GTIER: 0x%08x\n", error->gtier);
> +               err_printf(m, "GTIER: 0x%08x\n", error->gtier[0]);
>         err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
>         err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake);
>         err_printf(m, "DERRMR: 0x%08x\n", error->derrmr);
> @@ -1093,6 +1106,8 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
>                                    struct drm_i915_error_state *error)
>  {
>         struct drm_device *dev = dev_priv->dev;
> +       enum pipe pipe;
> +       int i;
>
>         /* General organization
>          * 1. Registers specific to a single generation
> @@ -1104,7 +1119,7 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
>
>         /* 1: Registers specific to a single generation */
>         if (IS_VALLEYVIEW(dev)) {
> -               error->gtier = I915_READ(GTIER);
> +               error->gtier[0] = I915_READ(GTIER);
>                 error->ier = I915_READ(VLV_IER);
>                 error->forcewake = I915_READ(FORCEWAKE_VLV);
>         }
> @@ -1138,9 +1153,18 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
>         if (HAS_HW_CONTEXTS(dev))
>                 error->ccid = I915_READ(CCID);
>
> -       if (HAS_PCH_SPLIT(dev)) {
> +       if (IS_BROADWELL(dev)) {
> +               for_each_pipe(pipe)
> +                       if (intel_display_power_enabled(dev_priv,
> +                                                       POWER_DOMAIN_PIPE(pipe)))
> +                               error->deier[pipe] =
> +                                       I915_READ(GEN8_DE_PIPE_IER(pipe));
> +               for (i = 0; i < 4; i++)
> +                       error->gtier[i] = I915_READ(GEN8_GT_IER(i));
> +               error->de_misc_ier = I915_READ(GEN8_DE_MISC_IER);
> +       } else if (HAS_PCH_SPLIT(dev)) {
>                 error->ier = I915_READ(DEIER);
> -               error->gtier = I915_READ(GTIER);
> +               error->gtier[0] = I915_READ(GTIER);
>         } else if (IS_GEN2(dev)) {
>                 error->ier = I915_READ16(IER);
>         } else if (!IS_VALLEYVIEW(dev)) {
> --
> 1.9.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Daniel Vetter Aug. 4, 2014, 2:56 p.m. UTC | #2
On Mon, Aug 04, 2014 at 11:44:10AM -0300, Paulo Zanoni wrote:
> 2014-08-01 13:13 GMT-03:00 Rodrigo Vivi <rodrigo.vivi@intel.com>:
> > BDW has many other Display Engine interrupts and GT interrupts registers.
> > Collecting it properly on gpu_error_state.
> >
> > On debugfs all was properly listed already but besides we were also listing old
> > DEIER and GTIER that doesn't exist on BDW anymore. This was causing
> > unclaimed register messages:
> >
> > https://bugs.freedesktop.org/show_bug.cgi?id=81701
> >
> > v2: Fix small issues of first version and don't read DEIER regs when pipe's
> >     power well is disabled
> > v3: bikeshed accepted: use enum pipe pipe instead of int i for pipe interection
> 
> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

Both patches merged to dinq, thanks.
-Daniel

> 
> >
> > Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> > ---
> >  drivers/gpu/drm/i915/i915_debugfs.c   |  4 ++++
> >  drivers/gpu/drm/i915/i915_drv.h       |  4 +++-
> >  drivers/gpu/drm/i915/i915_gpu_error.c | 32 ++++++++++++++++++++++++++++----
> >  3 files changed, 35 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> > index 9e737b7..b3493d3 100644
> > --- a/drivers/gpu/drm/i915/i915_debugfs.c
> > +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> > @@ -703,6 +703,10 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
> >                 }
> >
> >                 for_each_pipe(pipe) {
> > +                       if (!intel_display_power_enabled(dev_priv,
> > +                                                        POWER_DOMAIN_PIPE(pipe)))
> > +                               continue;
> > +
> >                         seq_printf(m, "Pipe %c IMR:\t%08x\n",
> >                                    pipe_name(pipe),
> >                                    I915_READ(GEN8_DE_PIPE_IMR(pipe)));
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> > index 60227b2..d1ae952 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -317,7 +317,9 @@ struct drm_i915_error_state {
> >         u32 eir;
> >         u32 pgtbl_er;
> >         u32 ier;
> > -       u32 gtier;
> > +       u32 gtier[4];
> > +       u32 deier[3];
> > +       u32 de_misc_ier;
> >         u32 ccid;
> >         u32 derrmr;
> >         u32 forcewake;
> > diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
> > index c8f901f..402b621 100644
> > --- a/drivers/gpu/drm/i915/i915_gpu_error.c
> > +++ b/drivers/gpu/drm/i915/i915_gpu_error.c
> > @@ -328,6 +328,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
> >         struct drm_i915_private *dev_priv = dev->dev_private;
> >         struct drm_i915_error_state *error = error_priv->error;
> >         struct drm_i915_error_object *obj;
> > +       enum pipe pipe;
> >         int i, j, offset, elt;
> >         int max_hangcheck_score;
> >
> > @@ -359,8 +360,20 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
> >         err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device);
> >         err_printf(m, "EIR: 0x%08x\n", error->eir);
> >         err_printf(m, "IER: 0x%08x\n", error->ier);
> > +       if (IS_BROADWELL(dev)) {
> > +               for_each_pipe(pipe)
> > +                       err_printf(m, "DEIER pipe %c: 0x%08x\n",
> > +                                  pipe_name(pipe),
> > +                                  error->deier[pipe]);
> > +               for (i = 0; i < 4; i++)
> > +                       err_printf(m, "GTIER gt %d: 0x%08x\n", i,
> > +                                  error->gtier[i]);
> > +               err_printf(m, "DE_MISC_IER: 0x%08x\n", error->de_misc_ier);
> > +       } else {
> > +               err_printf(m, "IER: 0x%08x\n", error->ier);
> > +       }
> >         if (HAS_PCH_SPLIT(dev) || IS_VALLEYVIEW(dev))
> > -               err_printf(m, "GTIER: 0x%08x\n", error->gtier);
> > +               err_printf(m, "GTIER: 0x%08x\n", error->gtier[0]);
> >         err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
> >         err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake);
> >         err_printf(m, "DERRMR: 0x%08x\n", error->derrmr);
> > @@ -1093,6 +1106,8 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
> >                                    struct drm_i915_error_state *error)
> >  {
> >         struct drm_device *dev = dev_priv->dev;
> > +       enum pipe pipe;
> > +       int i;
> >
> >         /* General organization
> >          * 1. Registers specific to a single generation
> > @@ -1104,7 +1119,7 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
> >
> >         /* 1: Registers specific to a single generation */
> >         if (IS_VALLEYVIEW(dev)) {
> > -               error->gtier = I915_READ(GTIER);
> > +               error->gtier[0] = I915_READ(GTIER);
> >                 error->ier = I915_READ(VLV_IER);
> >                 error->forcewake = I915_READ(FORCEWAKE_VLV);
> >         }
> > @@ -1138,9 +1153,18 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
> >         if (HAS_HW_CONTEXTS(dev))
> >                 error->ccid = I915_READ(CCID);
> >
> > -       if (HAS_PCH_SPLIT(dev)) {
> > +       if (IS_BROADWELL(dev)) {
> > +               for_each_pipe(pipe)
> > +                       if (intel_display_power_enabled(dev_priv,
> > +                                                       POWER_DOMAIN_PIPE(pipe)))
> > +                               error->deier[pipe] =
> > +                                       I915_READ(GEN8_DE_PIPE_IER(pipe));
> > +               for (i = 0; i < 4; i++)
> > +                       error->gtier[i] = I915_READ(GEN8_GT_IER(i));
> > +               error->de_misc_ier = I915_READ(GEN8_DE_MISC_IER);
> > +       } else if (HAS_PCH_SPLIT(dev)) {
> >                 error->ier = I915_READ(DEIER);
> > -               error->gtier = I915_READ(GTIER);
> > +               error->gtier[0] = I915_READ(GTIER);
> >         } else if (IS_GEN2(dev)) {
> >                 error->ier = I915_READ16(IER);
> >         } else if (!IS_VALLEYVIEW(dev)) {
> > --
> > 1.9.1
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> 
> 
> -- 
> Paulo Zanoni
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 9e737b7..b3493d3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -703,6 +703,10 @@  static int i915_interrupt_info(struct seq_file *m, void *data)
 		}
 
 		for_each_pipe(pipe) {
+			if (!intel_display_power_enabled(dev_priv,
+							 POWER_DOMAIN_PIPE(pipe)))
+				continue;
+
 			seq_printf(m, "Pipe %c IMR:\t%08x\n",
 				   pipe_name(pipe),
 				   I915_READ(GEN8_DE_PIPE_IMR(pipe)));
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 60227b2..d1ae952 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -317,7 +317,9 @@  struct drm_i915_error_state {
 	u32 eir;
 	u32 pgtbl_er;
 	u32 ier;
-	u32 gtier;
+	u32 gtier[4];
+	u32 deier[3];
+	u32 de_misc_ier;
 	u32 ccid;
 	u32 derrmr;
 	u32 forcewake;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index c8f901f..402b621 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -328,6 +328,7 @@  int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_i915_error_state *error = error_priv->error;
 	struct drm_i915_error_object *obj;
+	enum pipe pipe;
 	int i, j, offset, elt;
 	int max_hangcheck_score;
 
@@ -359,8 +360,20 @@  int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 	err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device);
 	err_printf(m, "EIR: 0x%08x\n", error->eir);
 	err_printf(m, "IER: 0x%08x\n", error->ier);
+	if (IS_BROADWELL(dev)) {
+		for_each_pipe(pipe)
+			err_printf(m, "DEIER pipe %c: 0x%08x\n",
+				   pipe_name(pipe),
+				   error->deier[pipe]);
+		for (i = 0; i < 4; i++)
+			err_printf(m, "GTIER gt %d: 0x%08x\n", i,
+				   error->gtier[i]);
+		err_printf(m, "DE_MISC_IER: 0x%08x\n", error->de_misc_ier);
+	} else {
+		err_printf(m, "IER: 0x%08x\n", error->ier);
+	}
 	if (HAS_PCH_SPLIT(dev) || IS_VALLEYVIEW(dev))
-		err_printf(m, "GTIER: 0x%08x\n", error->gtier);
+		err_printf(m, "GTIER: 0x%08x\n", error->gtier[0]);
 	err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
 	err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake);
 	err_printf(m, "DERRMR: 0x%08x\n", error->derrmr);
@@ -1093,6 +1106,8 @@  static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
 				   struct drm_i915_error_state *error)
 {
 	struct drm_device *dev = dev_priv->dev;
+	enum pipe pipe;
+	int i;
 
 	/* General organization
 	 * 1. Registers specific to a single generation
@@ -1104,7 +1119,7 @@  static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
 
 	/* 1: Registers specific to a single generation */
 	if (IS_VALLEYVIEW(dev)) {
-		error->gtier = I915_READ(GTIER);
+		error->gtier[0] = I915_READ(GTIER);
 		error->ier = I915_READ(VLV_IER);
 		error->forcewake = I915_READ(FORCEWAKE_VLV);
 	}
@@ -1138,9 +1153,18 @@  static void i915_capture_reg_state(struct drm_i915_private *dev_priv,
 	if (HAS_HW_CONTEXTS(dev))
 		error->ccid = I915_READ(CCID);
 
-	if (HAS_PCH_SPLIT(dev)) {
+	if (IS_BROADWELL(dev)) {
+		for_each_pipe(pipe)
+			if (intel_display_power_enabled(dev_priv,
+							POWER_DOMAIN_PIPE(pipe)))
+				error->deier[pipe] =
+					I915_READ(GEN8_DE_PIPE_IER(pipe));
+		for (i = 0; i < 4; i++)
+			error->gtier[i] = I915_READ(GEN8_GT_IER(i));
+		error->de_misc_ier = I915_READ(GEN8_DE_MISC_IER);
+	} else if (HAS_PCH_SPLIT(dev)) {
 		error->ier = I915_READ(DEIER);
-		error->gtier = I915_READ(GTIER);
+		error->gtier[0] = I915_READ(GTIER);
 	} else if (IS_GEN2(dev)) {
 		error->ier = I915_READ16(IER);
 	} else if (!IS_VALLEYVIEW(dev)) {