Re: [PATCH v3] drm/i915: correct the pitch check for NV12 framebuffer

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Hi Ville,

NV12 support for small src viewport sizes and rotation vs clipping scenarios are added into IGT by JP.
Commit details are as follows.

commit 8614d5eb114a660c3bd7ff77eab8bed53424cd30
Author: Juha-Pekka Heikkila <juhapekka.heikkila@xxxxxxxxx>
Date:   Fri Dec 21 15:42:33 2018 +0200

    tests/kms_rotation_crc: add NV12 support for multiplane* tests


Can you please review the patch again? As suggested I have removed the if..else check in intel_framebuffer_init().

Regards,
Raviraj


> -----Original Message-----
> From: Sitaram, Raviraj P
> Sent: Wednesday, December 19, 2018 1:59 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Sitaram, Raviraj P <raviraj.p.sitaram@xxxxxxxxx>; Hwang, Dongseong
> <dongseong.hwang@xxxxxxxxx>; Konduru, Chandra <chandra.konduru@xxxxxxxxx>;
> Srinivas, Vidya <vidya.srinivas@xxxxxxxxx>; Ville Syrjälä
> <ville.syrjala@xxxxxxxxxxxxxxx>; Juha-Pekka Heikkila
> <juhapekka.heikkila@xxxxxxxxx>
> Subject: [PATCH v3] drm/i915: correct the pitch check for NV12 framebuffer
> 
> From: P Raviraj Sitaram <raviraj.p.sitaram@xxxxxxxxx>
> 
> framebuffer for NV12 requires the pitch to the multiplier of 4, instead of the width.
> This patch corrects it.
> 
> For instance, a 480p video, whose width and pitch are 854 and 896 respectively, is
> excluded for NV12 plane so far.
> 
> Changes since v1:
>     - Removed check for NV12 buffer dimensions since additional checks
>       are done for viewport size in intel_sprite.c
> 
> Signed-off-by: Dongseong Hwang <dongseong.hwang@xxxxxxxxx>
> Signed-off-by: P Raviraj Sitaram <raviraj.p.sitaram@xxxxxxxxx>
> Cc: Chandra Konduru <chandra.konduru@xxxxxxxxx>
> Cc: Vidya Srinivas <vidya.srinivas@xxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Juha-Pekka Heikkila <juhapekka.heikkila@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 3b7094822aa9..fa349182d0da 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -14597,14 +14597,6 @@ static int intel_framebuffer_init(struct intel_framebuffer
> *intel_fb,
> 
>  	drm_helper_mode_fill_fb_struct(&dev_priv->drm, fb, mode_cmd);
> 
> -	if (fb->format->format == DRM_FORMAT_NV12 &&
> -	    (fb->width < SKL_MIN_YUV_420_SRC_W ||
> -	     fb->height < SKL_MIN_YUV_420_SRC_H ||
> -	     (fb->width % 4) != 0 || (fb->height % 4) != 0)) {
> -		DRM_DEBUG_KMS("src dimensions not correct for NV12\n");
> -		goto err;
> -	}
> -
>  	for (i = 0; i < fb->format->num_planes; i++) {
>  		u32 stride_alignment;
> 
> --
> 2.7.4

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