From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Vidya Srinivas <vidya.srinivas@intel.com>
Cc: igt-dev@lists.freedesktop.org, sunil.kamath@intel.com,
ville.syrjala@intel.com
Subject: Re: [igt-dev] [PATCH i-g-t] [i-g-t] tests/kms_plane_scaling: fb height to be multiplier of 4 for YUV 420 planar
Date: Fri, 16 Mar 2018 16:30:33 +0200 [thread overview]
Message-ID: <20180316143033.GI5453@intel.com> (raw)
In-Reply-To: <1521206427-28202-1-git-send-email-vidya.srinivas@intel.com>
On Fri, Mar 16, 2018 at 06:50:27PM +0530, Vidya Srinivas wrote:
> For Gen9, GLK, CNL, GLV: Display WA 1106:
> Display corruption/color shift observed when using NV12 with
> 270 rotation or 90 rotation + horizontal flip.
> WA: NV12 with 270 rotation or 90 rotation + horizontal flip requires
> the programmed plane height to be a multiple of 4.
> Patch changes the NV12 buffer to 20x20 to maintain both
> fb > min fb and also multiplier of 4
>
> Signed-off-by: Uma Shankar <uma.shankar@intel.com>
> Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
> ---
> tests/kms_plane_scaling.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tests/kms_plane_scaling.c b/tests/kms_plane_scaling.c
> index 36fcfc0..b94d785 100644
> --- a/tests/kms_plane_scaling.c
> +++ b/tests/kms_plane_scaling.c
> @@ -132,7 +132,7 @@ static void check_scaling_pipe_plane_rot(data_t *d, igt_plane_t *plane,
> /* create buffer in the range of min and max source side limit.*/
> width = height = 9;
> if (pixel_format == DRM_FORMAT_NV12)
> - width = height = 17;
> + width = height = 20;
Why 20 and not 16? I thought 16 was the limit?
> igt_create_color_fb(display->drm_fd, width, height,
> pixel_format, tiling, 0.0, 1.0, 0.0, &d->fb[0]);
> igt_plane_set_fb(plane, &d->fb[0]);
> --
> 2.7.4
>
> _______________________________________________
> igt-dev mailing list
> igt-dev@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/igt-dev
--
Ville Syrjälä
Intel OTC
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next prev parent reply other threads:[~2018-03-16 14:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-16 13:20 [igt-dev] [PATCH i-g-t] [i-g-t] tests/kms_plane_scaling: fb height to be multiplier of 4 for YUV 420 planar Vidya Srinivas
2018-03-16 14:11 ` [igt-dev] ✓ Fi.CI.BAT: success for " Patchwork
2018-03-16 14:30 ` Ville Syrjälä [this message]
2018-03-17 9:15 ` [igt-dev] [PATCH i-g-t] [i-g-t] " Srinivas, Vidya
2018-03-19 14:04 ` Ville Syrjälä
2018-03-20 10:02 ` Srinivas, Vidya
2018-03-21 15:04 ` Maarten Lankhorst
2018-03-23 4:21 ` Srinivas, Vidya
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