diff mbox

[8/8] drm/i915: Add NV12 support to intel_framebuffer_init

Message ID 1496832108-32594-9-git-send-email-vidya.srinivas@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Srinivas, Vidya June 7, 2017, 10:41 a.m. UTC
From: Chandra Konduru <chandra.konduru@intel.com>

This patch adds NV12 as supported format
to intel_framebuffer_init and performs various checks.

v2:
-Fix an issue in checks added (Chandra Konduru)

v3: rebased (me)

Link: https://patchwork.kernel.org/patch/6426221/
Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Signed-off-by: Nabendu Maiti <nabendu.bikash.maiti@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Comments

Ville Syrjälä June 12, 2017, 2:25 p.m. UTC | #1
On Wed, Jun 07, 2017 at 04:11:48PM +0530, Vidya Srinivas wrote:
> From: Chandra Konduru <chandra.konduru@intel.com>
> 
> This patch adds NV12 as supported format
> to intel_framebuffer_init and performs various checks.
> 
> v2:
> -Fix an issue in checks added (Chandra Konduru)
> 
> v3: rebased (me)
> 
> Link: https://patchwork.kernel.org/patch/6426221/
> Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
> Signed-off-by: Nabendu Maiti <nabendu.bikash.maiti@intel.com>
> Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 300f589..6e89421 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -14767,6 +14767,21 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
>  			goto err;
>  		}
>  		break;
> +	case DRM_FORMAT_NV12:

Needs platform checks here.

> +		if (!mode_cmd->offsets[1])
> +			DRM_ERROR("uv start offset not set\n");

Remove all the offset checks here. They should have handled by the
generic code. The check you have here are inconsistent anyway as one
of them assumes offsets[] is a lienar offset and the other assumes it's
not.

> +		if (mode_cmd->pitches[0] != mode_cmd->pitches[1] ||

I thought we could have different strides for the planes?

> +			mode_cmd->handles[0] != mode_cmd->handles[1])

Should already be handled by the generic code.

> +			DRM_ERROR("y & uv subplanes have different params\n");
> +		if (mode_cmd->modifier[1] == I915_FORMAT_MOD_Yf_TILED &&
> +			(mode_cmd->offsets[1] & 0xFFF))
> +			DRM_ERROR("tile-Yf uv offset 0x%x isn't starting on new tile-row\n",
> +				mode_cmd->offsets[1]);
> +		if (mode_cmd->modifier[1] == I915_FORMAT_MOD_Y_TILED &&
> +			((mode_cmd->offsets[1] / mode_cmd->pitches[1]) % 4))
> +			DRM_ERROR("tile-Y uv offset 0x%x isn't 4-line aligned\n",
> +				mode_cmd->offsets[1]);
> +		break;
>  	default:
>  		DRM_DEBUG_KMS("unsupported pixel format: %s\n",
>  			      drm_get_format_name(mode_cmd->pixel_format, &format_name));
> -- 
> 1.9.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Srinivas, Vidya June 15, 2017, 11:30 a.m. UTC | #2
> -----Original Message-----
> From: Ville Syrjälä [mailto:ville.syrjala@linux.intel.com]
> Sent: Monday, June 12, 2017 7:56 PM
> To: Srinivas, Vidya <vidya.srinivas@intel.com>
> Cc: intel-gfx@lists.freedesktop.org
> Subject: Re: [Intel-gfx] [PATCH 8/8] drm/i915: Add NV12 support to
> intel_framebuffer_init
> 
> On Wed, Jun 07, 2017 at 04:11:48PM +0530, Vidya Srinivas wrote:
> > From: Chandra Konduru <chandra.konduru@intel.com>
> >
> > This patch adds NV12 as supported format to intel_framebuffer_init and
> > performs various checks.
> >
> > v2:
> > -Fix an issue in checks added (Chandra Konduru)
> >
> > v3: rebased (me)
> >
> > Link: https://patchwork.kernel.org/patch/6426221/
> > Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
> > Signed-off-by: Nabendu Maiti <nabendu.bikash.maiti@intel.com>
> > Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++++++
> >  1 file changed, 15 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_display.c
> > b/drivers/gpu/drm/i915/intel_display.c
> > index 300f589..6e89421 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -14767,6 +14767,21 @@ static int intel_framebuffer_init(struct
> intel_framebuffer *intel_fb,
> >  			goto err;
> >  		}
> >  		break;
> > +	case DRM_FORMAT_NV12:
> 
> Needs platform checks here.
> 
> > +		if (!mode_cmd->offsets[1])
> > +			DRM_ERROR("uv start offset not set\n");
> 
> Remove all the offset checks here. They should have handled by the generic
> code. The check you have here are inconsistent anyway as one of them
> assumes offsets[] is a lienar offset and the other assumes it's not.

Thank you. I will make the change and re-submit.

Regards
Vidya
> 
> > +		if (mode_cmd->pitches[0] != mode_cmd->pitches[1] ||
> 
> I thought we could have different strides for the planes?
Yes true, I will make the necessary changes and re-submit.
> 
> > +			mode_cmd->handles[0] != mode_cmd->handles[1])
> 
> Should already be handled by the generic code.
> 
> > +			DRM_ERROR("y & uv subplanes have different
> params\n");
> > +		if (mode_cmd->modifier[1] ==
> I915_FORMAT_MOD_Yf_TILED &&
> > +			(mode_cmd->offsets[1] & 0xFFF))
> > +			DRM_ERROR("tile-Yf uv offset 0x%x isn't starting on
> new tile-row\n",
> > +				mode_cmd->offsets[1]);
> > +		if (mode_cmd->modifier[1] ==
> I915_FORMAT_MOD_Y_TILED &&
> > +			((mode_cmd->offsets[1] / mode_cmd->pitches[1])
> % 4))
> > +			DRM_ERROR("tile-Y uv offset 0x%x isn't 4-line
> aligned\n",
> > +				mode_cmd->offsets[1]);
> > +		break;
> >  	default:
> >  		DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> >  			      drm_get_format_name(mode_cmd-
> >pixel_format, &format_name));
> > --
> > 1.9.1
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> --
> Ville Syrjälä
> Intel OTC
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 300f589..6e89421 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14767,6 +14767,21 @@  static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 			goto err;
 		}
 		break;
+	case DRM_FORMAT_NV12:
+		if (!mode_cmd->offsets[1])
+			DRM_ERROR("uv start offset not set\n");
+		if (mode_cmd->pitches[0] != mode_cmd->pitches[1] ||
+			mode_cmd->handles[0] != mode_cmd->handles[1])
+			DRM_ERROR("y & uv subplanes have different params\n");
+		if (mode_cmd->modifier[1] == I915_FORMAT_MOD_Yf_TILED &&
+			(mode_cmd->offsets[1] & 0xFFF))
+			DRM_ERROR("tile-Yf uv offset 0x%x isn't starting on new tile-row\n",
+				mode_cmd->offsets[1]);
+		if (mode_cmd->modifier[1] == I915_FORMAT_MOD_Y_TILED &&
+			((mode_cmd->offsets[1] / mode_cmd->pitches[1]) % 4))
+			DRM_ERROR("tile-Y uv offset 0x%x isn't 4-line aligned\n",
+				mode_cmd->offsets[1]);
+		break;
 	default:
 		DRM_DEBUG_KMS("unsupported pixel format: %s\n",
 			      drm_get_format_name(mode_cmd->pixel_format, &format_name));