On Thu, Jun 29, 2017 at 10:10:29PM +0530, Mahesh Kumar wrote:
> In Gen9 platform Interlaced fetch mode doesn't support following plane
> configuration:
> - Y/Yf tiling
> - 90/270 rotation
> - YUV420 hybrid planar source pixel formats.
>
> This patch adds check to fail the flip if any of the above configuration
> is requested.
>
> Changes since V1:
> - handle checks in intel_plane_atomic_check_with_state (ville)
> - takeout plane scaler checks, combine with pipe scaler in next patch
>
> Signed-off-by: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_atomic_plane.c | 33 +++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
> index 4325cb0a04f5..2b60a67c5393 100644
> --- a/drivers/gpu/drm/i915/intel_atomic_plane.c
> +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
> @@ -114,6 +114,8 @@ int intel_plane_atomic_check_with_state(struct intel_crtc_state *crtc_state,
> struct drm_i915_private *dev_priv = to_i915(plane->dev);
> struct drm_plane_state *state = &intel_state->base;
> struct intel_plane *intel_plane = to_intel_plane(plane);
> + const struct drm_display_mode *adjusted_mode =
> + &crtc_state->base.adjusted_mode;
Indentation is off in several places. Pls fix your editor.
> int ret;
>
> /*
> @@ -173,6 +175,37 @@ int intel_plane_atomic_check_with_state(struct intel_crtc_state *crtc_state,
> if (ret)
> return ret;
>
> + /*
> + * Y-tiling is not supported in IF-ID Interlace mode in
> + * GEN9 and above.
> + * Scaling is not supported with Interlaced fetch mode.
> + * YUV420 hybrid planar source pixel formats are not supported with
> + * Interlaced fetch mode.
> + */
> + if (state->fb && INTEL_GEN(dev_priv) >= 9 && crtc_state->base.enable &&
> + adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
> + struct drm_framebuffer *fb = state->fb;
> + struct drm_format_name_buf format_name;
> +
> + if (fb->modifier == I915_FORMAT_MOD_Y_TILED ||
> + fb->modifier == I915_FORMAT_MOD_Yf_TILED) {
> + DRM_DEBUG_KMS("Y/Yf tiling not supported in IF-ID mode\n");
> + return -EINVAL;
> + }
> +
> + switch (fb->format->format) {
> + case DRM_FORMAT_NV12:
> + case DRM_FORMAT_YUV420:
> + case DRM_FORMAT_YVU420:
Non-NV12 should be dropped, but actually I think you can drop this check
entirely since skl_update_scaler() will already reject NV12 since
that always needs a scaler.
> + DRM_DEBUG_KMS("Unsupported pixel format %s for IF-ID\n",
> + drm_get_format_name(fb->format->format,
> + &format_name));
> + return -EINVAL;
> + default:
> + break;
> + }
> + }
> +
> /* FIXME pre-g4x don't work like this */
> if (intel_state->base.visible)
> crtc_state->active_planes |= BIT(intel_plane->id);
> --
> 2.13.0
--
Ville Syrjälä
Intel OTC
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