The cirrus driver maintains plane state, format and pitch, in it's
device structure. Introduce a plane state for the primary plane to
store the values.
Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
drivers/gpu/drm/tiny/cirrus.c | 59 ++++++++++++++++++++++++++++++++++-
1 file changed, 58 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index 8a1ae94d9106..ec6b918dce7b 100644
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c
@@ -74,6 +74,16 @@ struct cirrus_device {
#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
+struct cirrus_primary_plane_state {
+ struct drm_shadow_plane_state base;
+};
+
+static inline struct cirrus_primary_plane_state *
+to_cirrus_primary_plane_state(struct drm_plane_state *plane_state)
+{
+ return container_of(plane_state, struct cirrus_primary_plane_state,
base.base);
+};
+
/* ------------------------------------------------------------------ */
/*
* The meat of this driver. The core passes us a mode and we have to program
@@ -406,11 +416,58 @@ static const struct drm_plane_helper_funcs
cirrus_primary_plane_helper_funcs = {
.atomic_update = cirrus_primary_plane_helper_atomic_update,
};
+static struct drm_plane_state *
+cirrus_primary_plane_atomic_duplicate_state(struct drm_plane *plane)
+{
+ struct drm_plane_state *plane_state = plane->state;
+ struct cirrus_primary_plane_state *new_primary_plane_state;
+ struct drm_shadow_plane_state *new_shadow_plane_state;
+
+ if (!plane_state)
+ return NULL;
+
+ new_primary_plane_state = kzalloc(sizeof(*new_primary_plane_state),
GFP_KERNEL);
+ if (!new_primary_plane_state)
+ return NULL;
+ new_shadow_plane_state = &new_primary_plane_state->base;
+
+ __drm_gem_duplicate_shadow_plane_state(plane, new_shadow_plane_state);
+
+ return &new_shadow_plane_state->base;
+}
+
+static void cirrus_primary_plane_atomic_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state
*plane_state)
+{
+ struct cirrus_primary_plane_state *primary_plane_state =
+ to_cirrus_primary_plane_state(plane_state);
+
+ __drm_gem_destroy_shadow_plane_state(&primary_plane_state->base);
+ kfree(primary_plane_state);
+}
+
+static void cirrus_reset_primary_plane(struct drm_plane *plane)
+{
+ struct cirrus_primary_plane_state *primary_plane_state;
+
+ if (plane->state) {
+ cirrus_primary_plane_atomic_destroy_state(plane, plane->state);
+ plane->state = NULL; /* must be set to NULL here */
+ }
+
+ primary_plane_state = kzalloc(sizeof(*primary_plane_state), GFP_KERNEL);
+ if (!primary_plane_state)
+ return;
+ __drm_gem_reset_shadow_plane(plane, &primary_plane_state->base);
+}
+
static const struct drm_plane_funcs cirrus_primary_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- DRM_GEM_SHADOW_PLANE_FUNCS,
+ .reset = cirrus_reset_primary_plane,
+ .atomic_duplicate_state = cirrus_primary_plane_atomic_duplicate_state,
+ .atomic_destroy_state = cirrus_primary_plane_atomic_destroy_state,
};
static int cirrus_crtc_helper_atomic_check(struct drm_crtc *crtc, struct
drm_atomic_state *state)
--
2.39.1
