Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 308 insertions, 0 deletions

diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
new file mode 100644
index 000000000..161233cbc
--- /dev/null
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -0,0 +1,308 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Rob Clark <rob.clark@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_plane_helper.h>
+
+#include "omap_dmm_tiler.h"
+#include "omap_drv.h"
+
+/*
+ * plane funcs
+ */
+
+#define to_omap_plane(x) container_of(x, struct omap_plane, base)
+
+struct omap_plane {
+	struct drm_plane base;
+	enum omap_plane_id id;
+	const char *name;
+};
+
+static int omap_plane_prepare_fb(struct drm_plane *plane,
+				 struct drm_plane_state *new_state)
+{
+	if (!new_state->fb)
+		return 0;
+
+	return omap_framebuffer_pin(new_state->fb);
+}
+
+static void omap_plane_cleanup_fb(struct drm_plane *plane,
+				  struct drm_plane_state *old_state)
+{
+	if (old_state->fb)
+		omap_framebuffer_unpin(old_state->fb);
+}
+
+static void omap_plane_atomic_update(struct drm_plane *plane,
+				     struct drm_plane_state *old_state)
+{
+	struct omap_drm_private *priv = plane->dev->dev_private;
+	struct omap_plane *omap_plane = to_omap_plane(plane);
+	struct drm_plane_state *state = plane->state;
+	struct omap_overlay_info info;
+	int ret;
+
+	DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb);
+
+	memset(&info, 0, sizeof(info));
+	info.rotation_type = OMAP_DSS_ROT_NONE;
+	info.rotation = DRM_MODE_ROTATE_0;
+	info.global_alpha = 0xff;
+	info.zorder = state->normalized_zpos;
+
+	/* update scanout: */
+	omap_framebuffer_update_scanout(state->fb, state, &info);
+
+	DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
+			info.out_width, info.out_height,
+			info.screen_width);
+	DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
+			&info.paddr, &info.p_uv_addr);
+
+	/* and finally, update omapdss: */
+	ret = priv->dispc_ops->ovl_setup(priv->dispc, omap_plane->id, &info,
+			      omap_crtc_timings(state->crtc), false,
+			      omap_crtc_channel(state->crtc));
+	if (ret) {
+		dev_err(plane->dev->dev, "Failed to setup plane %s\n",
+			omap_plane->name);
+		priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
+		return;
+	}
+
+	priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, true);
+}
+
+static void omap_plane_atomic_disable(struct drm_plane *plane,
+				      struct drm_plane_state *old_state)
+{
+	struct omap_drm_private *priv = plane->dev->dev_private;
+	struct omap_plane *omap_plane = to_omap_plane(plane);
+
+	plane->state->rotation = DRM_MODE_ROTATE_0;
+	plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
+			   ? 0 : omap_plane->id;
+
+	priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
+}
+
+static int omap_plane_atomic_check(struct drm_plane *plane,
+				   struct drm_plane_state *state)
+{
+	struct drm_crtc_state *crtc_state;
+
+	if (!state->fb)
+		return 0;
+
+	/* crtc should only be NULL when disabling (i.e., !state->fb) */
+	if (WARN_ON(!state->crtc))
+		return 0;
+
+	crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
+	/* we should have a crtc state if the plane is attached to a crtc */
+	if (WARN_ON(!crtc_state))
+		return 0;
+
+	if (!crtc_state->enable)
+		return 0;
+
+	if (state->crtc_x < 0 || state->crtc_y < 0)
+		return -EINVAL;
+
+	if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
+		return -EINVAL;
+
+	if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
+		return -EINVAL;
+
+	if (state->rotation != DRM_MODE_ROTATE_0 &&
+	    !omap_framebuffer_supports_rotation(state->fb))
+		return -EINVAL;
+
+	return 0;
+}
+
+static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
+	.prepare_fb = omap_plane_prepare_fb,
+	.cleanup_fb = omap_plane_cleanup_fb,
+	.atomic_check = omap_plane_atomic_check,
+	.atomic_update = omap_plane_atomic_update,
+	.atomic_disable = omap_plane_atomic_disable,
+};
+
+static void omap_plane_destroy(struct drm_plane *plane)
+{
+	struct omap_plane *omap_plane = to_omap_plane(plane);
+
+	DBG("%s", omap_plane->name);
+
+	drm_plane_cleanup(plane);
+
+	kfree(omap_plane);
+}
+
+/* helper to install properties which are common to planes and crtcs */
+void omap_plane_install_properties(struct drm_plane *plane,
+		struct drm_mode_object *obj)
+{
+	struct drm_device *dev = plane->dev;
+	struct omap_drm_private *priv = dev->dev_private;
+
+	if (priv->has_dmm) {
+		if (!plane->rotation_property)
+			drm_plane_create_rotation_property(plane,
+							   DRM_MODE_ROTATE_0,
+							   DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
+							   DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
+							   DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
+
+		/* Attach the rotation property also to the crtc object */
+		if (plane->rotation_property && obj != &plane->base)
+			drm_object_attach_property(obj, plane->rotation_property,
+						   DRM_MODE_ROTATE_0);
+	}
+
+	drm_object_attach_property(obj, priv->zorder_prop, 0);
+}
+
+static void omap_plane_reset(struct drm_plane *plane)
+{
+	struct omap_plane *omap_plane = to_omap_plane(plane);
+
+	drm_atomic_helper_plane_reset(plane);
+	if (!plane->state)
+		return;
+
+	/*
+	 * Set the zpos default depending on whether we are a primary or overlay
+	 * plane.
+	 */
+	plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
+			   ? 0 : omap_plane->id;
+}
+
+static int omap_plane_atomic_set_property(struct drm_plane *plane,
+					  struct drm_plane_state *state,
+					  struct drm_property *property,
+					  u64 val)
+{
+	struct omap_drm_private *priv = plane->dev->dev_private;
+
+	if (property == priv->zorder_prop)
+		state->zpos = val;
+	else
+		return -EINVAL;
+
+	return 0;
+}
+
+static int omap_plane_atomic_get_property(struct drm_plane *plane,
+					  const struct drm_plane_state *state,
+					  struct drm_property *property,
+					  u64 *val)
+{
+	struct omap_drm_private *priv = plane->dev->dev_private;
+
+	if (property == priv->zorder_prop)
+		*val = state->zpos;
+	else
+		return -EINVAL;
+
+	return 0;
+}
+
+static const struct drm_plane_funcs omap_plane_funcs = {
+	.update_plane = drm_atomic_helper_update_plane,
+	.disable_plane = drm_atomic_helper_disable_plane,
+	.reset = omap_plane_reset,
+	.destroy = omap_plane_destroy,
+	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+	.atomic_set_property = omap_plane_atomic_set_property,
+	.atomic_get_property = omap_plane_atomic_get_property,
+};
+
+static const char *plane_id_to_name[] = {
+	[OMAP_DSS_GFX] = "gfx",
+	[OMAP_DSS_VIDEO1] = "vid1",
+	[OMAP_DSS_VIDEO2] = "vid2",
+	[OMAP_DSS_VIDEO3] = "vid3",
+};
+
+static const enum omap_plane_id plane_idx_to_id[] = {
+	OMAP_DSS_GFX,
+	OMAP_DSS_VIDEO1,
+	OMAP_DSS_VIDEO2,
+	OMAP_DSS_VIDEO3,
+};
+
+/* initialize plane */
+struct drm_plane *omap_plane_init(struct drm_device *dev,
+		int idx, enum drm_plane_type type,
+		u32 possible_crtcs)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	unsigned int num_planes = priv->dispc_ops->get_num_ovls(priv->dispc);
+	struct drm_plane *plane;
+	struct omap_plane *omap_plane;
+	enum omap_plane_id id;
+	int ret;
+	u32 nformats;
+	const u32 *formats;
+
+	if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id)))
+		return ERR_PTR(-EINVAL);
+
+	id = plane_idx_to_id[idx];
+
+	DBG("%s: type=%d", plane_id_to_name[id], type);
+
+	omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
+	if (!omap_plane)
+		return ERR_PTR(-ENOMEM);
+
+	formats = priv->dispc_ops->ovl_get_color_modes(priv->dispc, id);
+	for (nformats = 0; formats[nformats]; ++nformats)
+		;
+	omap_plane->id = id;
+	omap_plane->name = plane_id_to_name[id];
+
+	plane = &omap_plane->base;
+
+	ret = drm_universal_plane_init(dev, plane, possible_crtcs,
+				       &omap_plane_funcs, formats,
+				       nformats, NULL, type, NULL);
+	if (ret < 0)
+		goto error;
+
+	drm_plane_helper_add(plane, &omap_plane_helper_funcs);
+
+	omap_plane_install_properties(plane, &plane->base);
+	drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
+
+	return plane;
+
+error:
+	dev_err(dev->dev, "%s(): could not create plane: %s\n",
+		__func__, plane_id_to_name[id]);
+
+	kfree(omap_plane);
+	return NULL;
+}