On 17.05.2018 18:41, Thierry Reding wrote:
> From: Thierry Reding <treding@xxxxxxxxxx>
>
> Currently only the DRM_MODE_REFLECT_Y rotation is supported. The driver
> already supports reflection on the Y axis via a custom flag which is not
> very useful because it requires custom userspace. Replace that flag by a
> standard rotation property that supports 0 degree rotation and Y axis
> reflection.
>
> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
> ---
> drivers/gpu/drm/tegra/dc.c | 18 +++++++++++++++++-
> drivers/gpu/drm/tegra/drm.h | 1 -
> drivers/gpu/drm/tegra/fb.c | 10 ----------
> drivers/gpu/drm/tegra/plane.c | 1 +
> drivers/gpu/drm/tegra/plane.h | 2 ++
> 5 files changed, 20 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
> index 9f83a65b5ea9..e2e574202ca3 100644
> --- a/drivers/gpu/drm/tegra/dc.c
> +++ b/drivers/gpu/drm/tegra/dc.c
> @@ -451,6 +451,7 @@ static int tegra_plane_atomic_check(struct drm_plane *plane,
> struct drm_plane_state *state)
> {
> struct tegra_plane_state *plane_state = to_tegra_plane_state(state);
> + unsigned int rotation = DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_Y;
> struct tegra_bo_tiling *tiling = &plane_state->tiling;
> struct tegra_plane *tegra = to_tegra_plane(plane);
> struct tegra_dc *dc = to_tegra_dc(state->crtc);
> @@ -498,6 +499,13 @@ static int tegra_plane_atomic_check(struct drm_plane *plane,
> return -EINVAL;
> }
>
> + rotation = drm_rotation_simplify(state->rotation, rotation);
> +
> + if (rotation & DRM_MODE_REFLECT_Y)
> + plane_state->bottom_up = true;
> + else
> + plane_state->bottom_up = false;
> +
> /*
> * Tegra doesn't support different strides for U and V planes so we
> * error out if the user tries to display a framebuffer with such a
> @@ -558,7 +566,7 @@ static void tegra_plane_atomic_update(struct drm_plane *plane,
> window.dst.w = drm_rect_width(&plane->state->dst);
> window.dst.h = drm_rect_height(&plane->state->dst);
> window.bits_per_pixel = fb->format->cpp[0] * 8;
> - window.bottom_up = tegra_fb_is_bottom_up(fb);
> + window.bottom_up = state->bottom_up;
This is ABI breakage. For now let's keep the tegra_fb_is_bottom_up() and change
the above line to:
window.bottom_up = tegra_fb_is_bottom_up(fb) || state->bottom_up;
>
> /* copy from state */
> window.zpos = plane->state->normalized_zpos;
> @@ -643,6 +651,14 @@ static struct drm_plane *tegra_primary_plane_create(struct drm_device *drm,
> if (dc->soc->supports_blending)
> drm_plane_create_zpos_property(&plane->base, 0, 0, 255);
>
> + err = drm_plane_create_rotation_property(&plane->base,
> + DRM_MODE_ROTATE_0,
> + DRM_MODE_ROTATE_0 |
> + DRM_MODE_REFLECT_Y);
> + if (err < 0)
> + dev_err(dc->dev, "failed to create rotation property: %d\n",
> + err);
> +
The "rotation" property must be created for the overlay planes as well.
I've added "rotation" property support to the GRATE - works fine, so with the
above comments addressed:
Reviewed-by: Dmitry Osipenko <digetx@xxxxxxxxx>
Tested-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> return &plane->base;
> }
>
> diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
> index 4f41aaec8530..84930d13e28d 100644
> --- a/drivers/gpu/drm/tegra/drm.h
> +++ b/drivers/gpu/drm/tegra/drm.h
> @@ -177,7 +177,6 @@ int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
> /* from fb.c */
> struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
> unsigned int index);
> -bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
> int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
> struct tegra_bo_tiling *tiling);
> struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
> diff --git a/drivers/gpu/drm/tegra/fb.c b/drivers/gpu/drm/tegra/fb.c
> index e69434909a42..35827c729462 100644
> --- a/drivers/gpu/drm/tegra/fb.c
> +++ b/drivers/gpu/drm/tegra/fb.c
> @@ -38,16 +38,6 @@ struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
> return fb->planes[index];
> }
>
> -bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer)
> -{
> - struct tegra_fb *fb = to_tegra_fb(framebuffer);
> -
> - if (fb->planes[0]->flags & TEGRA_BO_BOTTOM_UP)
> - return true;
> -
> - return false;
> -}
> -
> int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
> struct tegra_bo_tiling *tiling)
> {
> diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c
> index 176ef46c615c..271729b2c653 100644
> --- a/drivers/gpu/drm/tegra/plane.c
> +++ b/drivers/gpu/drm/tegra/plane.c
> @@ -53,6 +53,7 @@ tegra_plane_atomic_duplicate_state(struct drm_plane *plane)
> copy->tiling = state->tiling;
> copy->format = state->format;
> copy->swap = state->swap;
> + copy->bottom_up = state->bottom_up;
> copy->opaque = state->opaque;
>
> for (i = 0; i < 3; i++)
> diff --git a/drivers/gpu/drm/tegra/plane.h b/drivers/gpu/drm/tegra/plane.h
> index 6938719e7e5d..867b9c32b1b6 100644
> --- a/drivers/gpu/drm/tegra/plane.h
> +++ b/drivers/gpu/drm/tegra/plane.h
> @@ -41,6 +41,8 @@ struct tegra_plane_state {
> u32 format;
> u32 swap;
>
> + bool bottom_up;
> +
> /* used for legacy blending support only */
> bool opaque;
> bool dependent[3];
>
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