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* [PATCH] drm/i915: fix up ivb plane 3 pageflips
@ 2012-05-23 11:20 Daniel Vetter
  2012-05-23 11:30 ` Chris Wilson
  0 siblings, 1 reply; 9+ messages in thread
From: Daniel Vetter @ 2012-05-23 11:20 UTC (permalink / raw)
  To: Intel Graphics Development; +Cc: Daniel Vetter

Or at least plug another gapping hole. Apparrently hw desingers only
moved the bit field, but did not bother ot re-enumerate the planes
when adding support for a 3rd pipe.

Discovered by i-g-t/flip_test.

This may or may not fix the reference bugzilla, because that one
smells like we have still larger fish to fry.

References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_reg.h      |    8 ++++++++
 drivers/gpu/drm/i915/intel_display.c |   18 +++++++++++++++++-
 2 files changed, 25 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2d49b95..76bc275 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -210,6 +210,14 @@
 #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
 #define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
 #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
+/* IVB has funny definitions for which plane to flip. */
+#define   MI_DISPLAY_FLIP_IVB_PLANE_A  (0 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_B  (1 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_A (2 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_B (3 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_C  (4 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_C (5 << 19)
+
 #define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
 #define   MI_MM_SPACE_GTT		(1<<8)
 #define   MI_MM_SPACE_PHYSICAL		(0<<8)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 67ed819..bd0d1b0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6158,17 +6158,33 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
+	uint32_t plane_bit = 0;
 	int ret;
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
 	if (ret)
 		goto err;
 
+	switch(intel_crtc->plane) {
+	case PLANE_A:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
+		break;
+	case PLANE_B:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
+		break;
+	case PLANE_C:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
+		break;
+	default:
+		WARN(1, "unknown plane in flip command\n");
+		goto err;
+	}
+
 	ret = intel_ring_begin(ring, 4);
 	if (ret)
 		goto err_unpin;
 
-	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
+	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
 	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
 	intel_ring_emit(ring, (obj->gtt_offset));
 	intel_ring_emit(ring, (MI_NOOP));
-- 
1.7.9

^ permalink raw reply related	[flat|nested] 9+ messages in thread

* Re: [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-05-23 11:20 [PATCH] drm/i915: fix up ivb plane 3 pageflips Daniel Vetter
@ 2012-05-23 11:30 ` Chris Wilson
  2012-05-23 12:02   ` Daniel Vetter
  0 siblings, 1 reply; 9+ messages in thread
From: Chris Wilson @ 2012-05-23 11:30 UTC (permalink / raw)
  To: Intel Graphics Development; +Cc: Daniel Vetter

On Wed, 23 May 2012 13:20:05 +0200, Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Or at least plug another gapping hole. Apparrently hw desingers only
> moved the bit field, but did not bother ot re-enumerate the planes
> when adding support for a 3rd pipe.
> 
> Discovered by i-g-t/flip_test.
> 
> This may or may not fix the reference bugzilla, because that one
> smells like we have still larger fish to fry.
> 
> References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
>  drivers/gpu/drm/i915/i915_reg.h      |    8 ++++++++
>  drivers/gpu/drm/i915/intel_display.c |   18 +++++++++++++++++-
>  2 files changed, 25 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 2d49b95..76bc275 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -210,6 +210,14 @@
>  #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
>  #define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
>  #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
> +/* IVB has funny definitions for which plane to flip. */
> +#define   MI_DISPLAY_FLIP_IVB_PLANE_A  (0 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_PLANE_B  (1 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_SPRITE_A (2 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_SPRITE_B (3 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_PLANE_C  (4 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_SPRITE_C (5 << 19)
> +
>  #define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
>  #define   MI_MM_SPACE_GTT		(1<<8)
>  #define   MI_MM_SPACE_PHYSICAL		(0<<8)
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 67ed819..bd0d1b0 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -6158,17 +6158,33 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
>  	struct drm_i915_private *dev_priv = dev->dev_private;
>  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
>  	struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
> +	uint32_t plane_bit = 0;
>  	int ret;
>  
>  	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
>  	if (ret)
>  		goto err;
>  
> +	switch(intel_crtc->plane) {
> +	case PLANE_A:
> +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
> +		break;
> +	case PLANE_B:
> +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
> +		break;
> +	case PLANE_C:
> +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
> +		break;
> +	default:
> +		WARN(1, "unknown plane in flip command\n");

Just DRM_ERROR(), the callstack is uninteresting, and make it once? But
more importantly set ret=-EINVAL. Or how about send_fatal_sig() :)
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-05-23 11:30 ` Chris Wilson
@ 2012-05-23 12:02   ` Daniel Vetter
  2012-05-23 12:05     ` Chris Wilson
  2012-06-05  8:56     ` Daniel Vetter
  0 siblings, 2 replies; 9+ messages in thread
From: Daniel Vetter @ 2012-05-23 12:02 UTC (permalink / raw)
  To: Intel Graphics Development; +Cc: Daniel Vetter

Or at least plug another gapping hole. Apparrently hw desingers only
moved the bit field, but did not bother ot re-enumerate the planes
when adding support for a 3rd pipe.

Discovered by i-g-t/flip_test.

This may or may not fix the reference bugzilla, because that one
smells like we have still larger fish to fry.

v2: Fixup the impossible case to catch programming errors, noticed by
Chris Wilson.

References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_reg.h      |    8 ++++++++
 drivers/gpu/drm/i915/intel_display.c |   19 ++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2d49b95..76bc275 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -210,6 +210,14 @@
 #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
 #define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
 #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
+/* IVB has funny definitions for which plane to flip. */
+#define   MI_DISPLAY_FLIP_IVB_PLANE_A  (0 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_B  (1 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_A (2 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_B (3 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_C  (4 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_C (5 << 19)
+
 #define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
 #define   MI_MM_SPACE_GTT		(1<<8)
 #define   MI_MM_SPACE_PHYSICAL		(0<<8)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 67ed819..9a6e819 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6158,17 +6158,34 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
+	uint32_t plane_bit = 0;
 	int ret;
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
 	if (ret)
 		goto err;
 
+	switch(intel_crtc->plane) {
+	case PLANE_A:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
+		break;
+	case PLANE_B:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
+		break;
+	case PLANE_C:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
+		break;
+	default:
+		WARN_ONCE(1, "unknown plane in flip command\n");
+		ret = -ENODEV;
+		goto err;
+	}
+
 	ret = intel_ring_begin(ring, 4);
 	if (ret)
 		goto err_unpin;
 
-	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
+	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
 	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
 	intel_ring_emit(ring, (obj->gtt_offset));
 	intel_ring_emit(ring, (MI_NOOP));
-- 
1.7.9

^ permalink raw reply related	[flat|nested] 9+ messages in thread

* Re: [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-05-23 12:02   ` Daniel Vetter
@ 2012-05-23 12:05     ` Chris Wilson
  2012-06-05  8:56     ` Daniel Vetter
  1 sibling, 0 replies; 9+ messages in thread
From: Chris Wilson @ 2012-05-23 12:05 UTC (permalink / raw)
  To: Intel Graphics Development; +Cc: Daniel Vetter

On Wed, 23 May 2012 14:02:00 +0200, Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Or at least plug another gapping hole. Apparrently hw desingers only
> moved the bit field, but did not bother ot re-enumerate the planes
> when adding support for a 3rd pipe.
> 
> Discovered by i-g-t/flip_test.
> 
> This may or may not fix the reference bugzilla, because that one
> smells like we have still larger fish to fry.
> 
> v2: Fixup the impossible case to catch programming errors, noticed by
> Chris Wilson.
> 
> References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

The code looks correct, just not in a position atm to verify the
MI_DISPLAY_FLIP bits.

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

-- 
Chris Wilson, Intel Open Source Technology Centre

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-05-23 12:02   ` Daniel Vetter
  2012-05-23 12:05     ` Chris Wilson
@ 2012-06-05  8:56     ` Daniel Vetter
  2012-06-05 16:35       ` Ben Widawsky
  2012-06-05 18:52       ` Eugeni Dodonov
  1 sibling, 2 replies; 9+ messages in thread
From: Daniel Vetter @ 2012-06-05  8:56 UTC (permalink / raw)
  To: Intel Graphics Development, Eugeni Dodonov, Ben Widawsky; +Cc: Daniel Vetter

On Wed, May 23, 2012 at 02:02:00PM +0200, Daniel Vetter wrote:
> Or at least plug another gapping hole. Apparrently hw desingers only
> moved the bit field, but did not bother ot re-enumerate the planes
> when adding support for a 3rd pipe.
> 
> Discovered by i-g-t/flip_test.
> 
> This may or may not fix the reference bugzilla, because that one
> smells like we have still larger fish to fry.
> 
> v2: Fixup the impossible case to catch programming errors, noticed by
> Chris Wilson.
> 
> References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Ping for review and maybe a tested-by. This fixes i-g-t/tests/flip_test on
my ivb, but for some strange reasons QA can't confirm that. Still, I'd
like to push this patch to -fixes. Eugeni, Ben?

Thanks, Daniel

> ---
>  drivers/gpu/drm/i915/i915_reg.h      |    8 ++++++++
>  drivers/gpu/drm/i915/intel_display.c |   19 ++++++++++++++++++-
>  2 files changed, 26 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 2d49b95..76bc275 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -210,6 +210,14 @@
>  #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
>  #define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
>  #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
> +/* IVB has funny definitions for which plane to flip. */
> +#define   MI_DISPLAY_FLIP_IVB_PLANE_A  (0 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_PLANE_B  (1 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_SPRITE_A (2 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_SPRITE_B (3 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_PLANE_C  (4 << 19)
> +#define   MI_DISPLAY_FLIP_IVB_SPRITE_C (5 << 19)
> +
>  #define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
>  #define   MI_MM_SPACE_GTT		(1<<8)
>  #define   MI_MM_SPACE_PHYSICAL		(0<<8)
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 67ed819..9a6e819 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -6158,17 +6158,34 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
>  	struct drm_i915_private *dev_priv = dev->dev_private;
>  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
>  	struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
> +	uint32_t plane_bit = 0;
>  	int ret;
>  
>  	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
>  	if (ret)
>  		goto err;
>  
> +	switch(intel_crtc->plane) {
> +	case PLANE_A:
> +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
> +		break;
> +	case PLANE_B:
> +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
> +		break;
> +	case PLANE_C:
> +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
> +		break;
> +	default:
> +		WARN_ONCE(1, "unknown plane in flip command\n");
> +		ret = -ENODEV;
> +		goto err;
> +	}
> +
>  	ret = intel_ring_begin(ring, 4);
>  	if (ret)
>  		goto err_unpin;
>  
> -	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
> +	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
>  	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
>  	intel_ring_emit(ring, (obj->gtt_offset));
>  	intel_ring_emit(ring, (MI_NOOP));
> -- 
> 1.7.9
> 

-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-06-05  8:56     ` Daniel Vetter
@ 2012-06-05 16:35       ` Ben Widawsky
  2012-06-05 18:52       ` Eugeni Dodonov
  1 sibling, 0 replies; 9+ messages in thread
From: Ben Widawsky @ 2012-06-05 16:35 UTC (permalink / raw)
  To: Daniel Vetter; +Cc: Intel Graphics Development, Eugeni, Daniel Vetter

On Tue, 5 Jun 2012 10:56:58 +0200
Daniel Vetter <daniel@ffwll.ch> wrote:

> On Wed, May 23, 2012 at 02:02:00PM +0200, Daniel Vetter wrote:
> > Or at least plug another gapping hole. Apparrently hw desingers only
> > moved the bit field, but did not bother ot re-enumerate the planes
> > when adding support for a 3rd pipe.
> > 
> > Discovered by i-g-t/flip_test.
> > 
> > This may or may not fix the reference bugzilla, because that one
> > smells like we have still larger fish to fry.
> > 
> > v2: Fixup the impossible case to catch programming errors, noticed by
> > Chris Wilson.
> > 
> > References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
> > Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> 
> Ping for review and maybe a tested-by. This fixes i-g-t/tests/flip_test on
> my ivb, but for some strange reasons QA can't confirm that. Still, I'd
> like to push this patch to -fixes. Eugeni, Ben?
> 
> Thanks, Daniel

I'm starting to review it. I need to do some background reading first.

> 
> > ---
> >  drivers/gpu/drm/i915/i915_reg.h      |    8 ++++++++
> >  drivers/gpu/drm/i915/intel_display.c |   19 ++++++++++++++++++-
> >  2 files changed, 26 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> > index 2d49b95..76bc275 100644
> > --- a/drivers/gpu/drm/i915/i915_reg.h
> > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > @@ -210,6 +210,14 @@
> >  #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
> >  #define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
> >  #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
> > +/* IVB has funny definitions for which plane to flip. */
> > +#define   MI_DISPLAY_FLIP_IVB_PLANE_A  (0 << 19)
> > +#define   MI_DISPLAY_FLIP_IVB_PLANE_B  (1 << 19)
> > +#define   MI_DISPLAY_FLIP_IVB_SPRITE_A (2 << 19)
> > +#define   MI_DISPLAY_FLIP_IVB_SPRITE_B (3 << 19)
> > +#define   MI_DISPLAY_FLIP_IVB_PLANE_C  (4 << 19)
> > +#define   MI_DISPLAY_FLIP_IVB_SPRITE_C (5 << 19)
> > +
> >  #define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
> >  #define   MI_MM_SPACE_GTT		(1<<8)
> >  #define   MI_MM_SPACE_PHYSICAL		(0<<8)
> > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> > index 67ed819..9a6e819 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -6158,17 +6158,34 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
> >  	struct drm_i915_private *dev_priv = dev->dev_private;
> >  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> >  	struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
> > +	uint32_t plane_bit = 0;
> >  	int ret;
> >  
> >  	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
> >  	if (ret)
> >  		goto err;
> >  
> > +	switch(intel_crtc->plane) {
> > +	case PLANE_A:
> > +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
> > +		break;
> > +	case PLANE_B:
> > +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
> > +		break;
> > +	case PLANE_C:
> > +		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
> > +		break;
> > +	default:
> > +		WARN_ONCE(1, "unknown plane in flip command\n");
> > +		ret = -ENODEV;
> > +		goto err;
> > +	}
> > +
> >  	ret = intel_ring_begin(ring, 4);
> >  	if (ret)
> >  		goto err_unpin;
> >  
> > -	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
> > +	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
> >  	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
> >  	intel_ring_emit(ring, (obj->gtt_offset));
> >  	intel_ring_emit(ring, (MI_NOOP));
> > -- 
> > 1.7.9
> > 
> 



-- 
Ben Widawsky, Intel Open Source Technology Center

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-06-05  8:56     ` Daniel Vetter
  2012-06-05 16:35       ` Ben Widawsky
@ 2012-06-05 18:52       ` Eugeni Dodonov
  2012-06-05 18:59         ` Eugeni Dodonov
  1 sibling, 1 reply; 9+ messages in thread
From: Eugeni Dodonov @ 2012-06-05 18:52 UTC (permalink / raw)
  To: Daniel Vetter; +Cc: Intel Graphics Development, Ben Widawsky, Daniel Vetter

On 06/05/2012 05:56 AM, Daniel Vetter wrote:
> On Wed, May 23, 2012 at 02:02:00PM +0200, Daniel Vetter wrote:
>> Or at least plug another gapping hole. Apparrently hw desingers only
>> moved the bit field, but did not bother ot re-enumerate the planes
>> when adding support for a 3rd pipe.
>>
>> Discovered by i-g-t/flip_test.
>>
>> This may or may not fix the reference bugzilla, because that one
>> smells like we have still larger fish to fry.
>>
>> v2: Fixup the impossible case to catch programming errors, noticed by
>> Chris Wilson.
>>
>> References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
>> Signed-Off-by: Daniel Vetter<daniel.vetter@ffwll.ch>
>
> Ping for review and maybe a tested-by. This fixes i-g-t/tests/flip_test on
> my ivb, but for some strange reasons QA can't confirm that. Still, I'd
> like to push this patch to -fixes. Eugeni, Ben?

Although I don't get exact symptoms (I don't get any BUG in dmesg), 
without this patch the flip_test hangs when running on 3rd pipe, and 
with this patch it proceeds and finishes correctly.

So this patch fixes this test case, and as far I can see it is correct.

Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>

Eugeni

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-06-05 18:52       ` Eugeni Dodonov
@ 2012-06-05 18:59         ` Eugeni Dodonov
  2012-06-05 19:06           ` Daniel Vetter
  0 siblings, 1 reply; 9+ messages in thread
From: Eugeni Dodonov @ 2012-06-05 18:59 UTC (permalink / raw)
  To: eugeni.dodonov; +Cc: Daniel Vetter, Intel Graphics Development, Ben Widawsky

On 06/05/2012 03:52 PM, Eugeni Dodonov wrote:
> On 06/05/2012 05:56 AM, Daniel Vetter wrote:
>> On Wed, May 23, 2012 at 02:02:00PM +0200, Daniel Vetter wrote:
>>> Or at least plug another gapping hole. Apparrently hw desingers only
>>> moved the bit field, but did not bother ot re-enumerate the planes
>>> when adding support for a 3rd pipe.
>>>
>>> Discovered by i-g-t/flip_test.
>>>
>>> This may or may not fix the reference bugzilla, because that one
>>> smells like we have still larger fish to fry.
>>>
>>> v2: Fixup the impossible case to catch programming errors, noticed by
>>> Chris Wilson.
>>>
>>> References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
>>> Signed-Off-by: Daniel Vetter<daniel.vetter@ffwll.ch>
>>
>> Ping for review and maybe a tested-by. This fixes
>> i-g-t/tests/flip_test on
>> my ivb, but for some strange reasons QA can't confirm that. Still, I'd
>> like to push this patch to -fixes. Eugeni, Ben?
>
> Although I don't get exact symptoms (I don't get any BUG in dmesg),
> without this patch the flip_test hangs when running on 3rd pipe, and
> with this patch it proceeds and finishes correctly.
>
> So this patch fixes this test case, and as far I can see it is correct.
>
> Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>

..and also Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] drm/i915: fix up ivb plane 3 pageflips
  2012-06-05 18:59         ` Eugeni Dodonov
@ 2012-06-05 19:06           ` Daniel Vetter
  0 siblings, 0 replies; 9+ messages in thread
From: Daniel Vetter @ 2012-06-05 19:06 UTC (permalink / raw)
  To: eugeni.dodonov; +Cc: Daniel Vetter, Intel Graphics Development, Ben Widawsky

On Tue, Jun 05, 2012 at 03:59:15PM -0300, Eugeni Dodonov wrote:
> On 06/05/2012 03:52 PM, Eugeni Dodonov wrote:
> >On 06/05/2012 05:56 AM, Daniel Vetter wrote:
> >>On Wed, May 23, 2012 at 02:02:00PM +0200, Daniel Vetter wrote:
> >>>Or at least plug another gapping hole. Apparrently hw desingers only
> >>>moved the bit field, but did not bother ot re-enumerate the planes
> >>>when adding support for a 3rd pipe.
> >>>
> >>>Discovered by i-g-t/flip_test.
> >>>
> >>>This may or may not fix the reference bugzilla, because that one
> >>>smells like we have still larger fish to fry.
> >>>
> >>>v2: Fixup the impossible case to catch programming errors, noticed by
> >>>Chris Wilson.
> >>>
> >>>References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
> >>>Signed-Off-by: Daniel Vetter<daniel.vetter@ffwll.ch>
> >>
> >>Ping for review and maybe a tested-by. This fixes
> >>i-g-t/tests/flip_test on
> >>my ivb, but for some strange reasons QA can't confirm that. Still, I'd
> >>like to push this patch to -fixes. Eugeni, Ben?
> >
> >Although I don't get exact symptoms (I don't get any BUG in dmesg),
> >without this patch the flip_test hangs when running on 3rd pipe, and
> >with this patch it proceeds and finishes correctly.
> >
> >So this patch fixes this test case, and as far I can see it is correct.
> >
> >Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
> 
> ..and also Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Picked up for -fixes (with a cc stable added), thanks for the review and
testing.
-Daniel
-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2012-06-05 19:05 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-05-23 11:20 [PATCH] drm/i915: fix up ivb plane 3 pageflips Daniel Vetter
2012-05-23 11:30 ` Chris Wilson
2012-05-23 12:02   ` Daniel Vetter
2012-05-23 12:05     ` Chris Wilson
2012-06-05  8:56     ` Daniel Vetter
2012-06-05 16:35       ` Ben Widawsky
2012-06-05 18:52       ` Eugeni Dodonov
2012-06-05 18:59         ` Eugeni Dodonov
2012-06-05 19:06           ` Daniel Vetter

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