From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Not all planes on the system may support the same rotations/reflections,
so make it possible to create a separate property for each plane.
This way userspace gets told exactly which rotations/reflections are
possible for each plane.
v2: Add drm_plane_create_rotation_property() helper
v3: Drop the BIT(), __builtin_ffs(x) - 1,
Moar WARNs for bad parameters
Deal with superfluous code shuffling
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> (v1)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> (v2)
---
drivers/gpu/drm/drm_atomic.c | 6 ++++--
drivers/gpu/drm/drm_blend.c | 35 +++++++++++++++++++++++++++++++++++
drivers/gpu/drm/drm_fb_helper.c | 6 +++++-
include/drm/drm_blend.h | 3 +++
include/drm/drm_plane.h | 2 ++
5 files changed, 49 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 58b90c247153..a747bb1d486f 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -709,7 +709,8 @@ int drm_atomic_plane_set_property(struct drm_plane *plane,
state->src_w = val;
} else if (property == config->prop_src_h) {
state->src_h = val;
- } else if (property == config->rotation_property) {
+ } else if (property == config->rotation_property ||
+ property == plane->rotation_property) {
if (!is_power_of_2(val & DRM_ROTATE_MASK))
return -EINVAL;
state->rotation = val;
@@ -769,7 +770,8 @@ drm_atomic_plane_get_property(struct drm_plane *plane,
*val = state->src_w;
} else if (property == config->prop_src_h) {
*val = state->src_h;
- } else if (property == config->rotation_property) {
+ } else if (property == config->rotation_property ||
+ property == plane->rotation_property) {
*val = state->rotation;
} else if (property == plane->zpos_property) {
*val = state->zpos;
diff --git a/drivers/gpu/drm/drm_blend.c b/drivers/gpu/drm/drm_blend.c
index 85172a977bf3..e52aece30900 100644
--- a/drivers/gpu/drm/drm_blend.c
+++ b/drivers/gpu/drm/drm_blend.c
@@ -162,6 +162,41 @@ struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_mode_create_rotation_property);
+int drm_plane_create_rotation_property(struct drm_plane *plane,
+ unsigned int rotation,
+ unsigned int supported_rotations)
+{
+ static const struct drm_prop_enum_list props[] = {
+ { __builtin_ffs(DRM_ROTATE_0) - 1, "rotate-0" },
+ { __builtin_ffs(DRM_ROTATE_90) - 1, "rotate-90" },
+ { __builtin_ffs(DRM_ROTATE_180) - 1, "rotate-180" },
+ { __builtin_ffs(DRM_ROTATE_270) - 1, "rotate-270" },
+ { __builtin_ffs(DRM_REFLECT_X) - 1, "reflect-x" },
+ { __builtin_ffs(DRM_REFLECT_Y) - 1, "reflect-y" },
+ };
+ struct drm_property *prop;
+
+ WARN_ON((supported_rotations & DRM_ROTATE_MASK) == 0);
+ WARN_ON(!is_power_of_2(rotation & DRM_ROTATE_MASK));
+ WARN_ON(rotation & ~supported_rotations);
+
+ prop = drm_property_create_bitmask(plane->dev, 0, "rotation",
+ props, ARRAY_SIZE(props),
+ supported_rotations);
+ if (!prop)
+ return -ENOMEM;
+
+ drm_object_attach_property(&plane->base, prop, rotation);
+
+ if (plane->state)
+ plane->state->rotation = rotation;
+
+ plane->rotation_property = prop;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_plane_create_rotation_property);
+
/**
* drm_rotation_simplify() - Try to simplify the rotation
* @rotation: Rotation to be simplified
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 03414bde1f15..54ca3675a745 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -394,7 +394,11 @@ static int restore_fbdev_mode(struct drm_fb_helper *fb_helper)
if (plane->type != DRM_PLANE_TYPE_PRIMARY)
drm_plane_force_disable(plane);
- if (dev->mode_config.rotation_property) {
+ if (plane->rotation_property) {
+ drm_mode_plane_set_obj_prop(plane,
+ plane->rotation_property,
+ DRM_ROTATE_0);
+ } else if (dev->mode_config.rotation_property) {
drm_mode_plane_set_obj_prop(plane,
dev->mode_config.rotation_property,
DRM_ROTATE_0);
diff --git a/include/drm/drm_blend.h b/include/drm/drm_blend.h
index bb493410396c..fd351924e1c5 100644
--- a/include/drm/drm_blend.h
+++ b/include/drm/drm_blend.h
@@ -54,6 +54,9 @@ static inline bool drm_rotation_90_or_270(unsigned int rotation)
struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
unsigned int supported_rotations);
+int drm_plane_create_rotation_property(struct drm_plane *plane,
+ unsigned int rotation,
+ unsigned int supported_rotations);
unsigned int drm_rotation_simplify(unsigned int rotation,
unsigned int supported_rotations);
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 43cf193e54d6..02d1882058e5 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -386,6 +386,7 @@ enum drm_plane_type {
* @type: type of plane (overlay, primary, cursor)
* @state: current atomic state for this plane
* @zpos_property: zpos property for this plane
+ * @rotation_property: rotation property for this plane
* @helper_private: mid-layer private data
*/
struct drm_plane {
@@ -432,6 +433,7 @@ struct drm_plane {
struct drm_plane_state *state;
struct drm_property *zpos_property;
+ struct drm_property *rotation_property;
};
#define obj_to_plane(x) container_of(x, struct drm_plane, base)
--
2.7.4
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