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path: root/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c
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Diffstat (limited to 'drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c')
-rw-r--r--drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c b/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c
new file mode 100644
index 000000000000..f1c9e3fefa86
--- /dev/null
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
+ * Author: James.Qian.Wang <james.qian.wang@arm.com>
+ *
+ */
+#include "komeda_dev.h"
+#include "komeda_kms.h"
+
+static struct drm_private_state *
+komeda_pipeline_atomic_duplicate_state(struct drm_private_obj *obj)
+{
+ struct komeda_pipeline_state *st;
+
+ st = kmemdup(obj->state, sizeof(*st), GFP_KERNEL);
+ if (!st)
+ return NULL;
+
+ st->active_comps = 0;
+
+ __drm_atomic_helper_private_obj_duplicate_state(obj, &st->obj);
+
+ return &st->obj;
+}
+
+static void
+komeda_pipeline_atomic_destroy_state(struct drm_private_obj *obj,
+ struct drm_private_state *state)
+{
+ kfree(priv_to_pipe_st(state));
+}
+
+static const struct drm_private_state_funcs komeda_pipeline_obj_funcs = {
+ .atomic_duplicate_state = komeda_pipeline_atomic_duplicate_state,
+ .atomic_destroy_state = komeda_pipeline_atomic_destroy_state,
+};
+
+static int komeda_pipeline_obj_add(struct komeda_kms_dev *kms,
+ struct komeda_pipeline *pipe)
+{
+ struct komeda_pipeline_state *st;
+
+ st = kzalloc(sizeof(*st), GFP_KERNEL);
+ if (!st)
+ return -ENOMEM;
+
+ st->pipe = pipe;
+ drm_atomic_private_obj_init(&kms->base, &pipe->obj, &st->obj,
+ &komeda_pipeline_obj_funcs);
+
+ return 0;
+}
+
+int komeda_kms_add_private_objs(struct komeda_kms_dev *kms,
+ struct komeda_dev *mdev)
+{
+ struct komeda_pipeline *pipe;
+ int i, err;
+
+ for (i = 0; i < mdev->n_pipelines; i++) {
+ pipe = mdev->pipelines[i];
+
+ err = komeda_pipeline_obj_add(kms, pipe);
+ if (err)
+ return err;
+
+ /* Add component */
+ }
+
+ return 0;
+}
+
+void komeda_kms_cleanup_private_objs(struct komeda_dev *mdev)
+{
+ struct komeda_pipeline *pipe;
+ struct komeda_component *c;
+ int i, id;
+
+ for (i = 0; i < mdev->n_pipelines; i++) {
+ pipe = mdev->pipelines[i];
+ dp_for_each_set_bit(id, pipe->avail_comps) {
+ c = komeda_pipeline_get_component(pipe, id);
+
+ drm_atomic_private_obj_fini(&c->obj);
+ }
+ drm_atomic_private_obj_fini(&pipe->obj);
+ }
+}