Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 127 insertions, 0 deletions

diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c
new file mode 100644
index 000000000..991857125
--- /dev/null
+++ b/drivers/gpu/drm/vkms/vkms_output.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include "vkms_drv.h"
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_helper.h>
+
+static void vkms_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_cleanup(connector);
+}
+
+static const struct drm_connector_funcs vkms_connector_funcs = {
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = vkms_connector_destroy,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static int vkms_conn_get_modes(struct drm_connector *connector)
+{
+	int count;
+
+	count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
+	drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
+
+	return count;
+}
+
+static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = {
+	.get_modes    = vkms_conn_get_modes,
+};
+
+static int vkms_add_overlay_plane(struct vkms_device *vkmsdev, int index,
+				  struct drm_crtc *crtc)
+{
+	struct vkms_plane *overlay;
+
+	overlay = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_OVERLAY, index);
+	if (IS_ERR(overlay))
+		return PTR_ERR(overlay);
+
+	if (!overlay->base.possible_crtcs)
+		overlay->base.possible_crtcs = drm_crtc_mask(crtc);
+
+	return 0;
+}
+
+int vkms_output_init(struct vkms_device *vkmsdev, int index)
+{
+	struct vkms_output *output = &vkmsdev->output;
+	struct drm_device *dev = &vkmsdev->drm;
+	struct drm_connector *connector = &output->connector;
+	struct drm_encoder *encoder = &output->encoder;
+	struct drm_crtc *crtc = &output->crtc;
+	struct vkms_plane *primary, *cursor = NULL;
+	int ret;
+	int writeback;
+	unsigned int n;
+
+	primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index);
+	if (IS_ERR(primary))
+		return PTR_ERR(primary);
+
+	if (vkmsdev->config->overlay) {
+		for (n = 0; n < NUM_OVERLAY_PLANES; n++) {
+			ret = vkms_add_overlay_plane(vkmsdev, index, crtc);
+			if (ret)
+				return ret;
+		}
+	}
+
+	if (vkmsdev->config->cursor) {
+		cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR, index);
+		if (IS_ERR(cursor))
+			return PTR_ERR(cursor);
+	}
+
+	ret = vkms_crtc_init(dev, crtc, &primary->base, &cursor->base);
+	if (ret)
+		return ret;
+
+	ret = drm_connector_init(dev, connector, &vkms_connector_funcs,
+				 DRM_MODE_CONNECTOR_VIRTUAL);
+	if (ret) {
+		DRM_ERROR("Failed to init connector\n");
+		goto err_connector;
+	}
+
+	drm_connector_helper_add(connector, &vkms_conn_helper_funcs);
+
+	ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_VIRTUAL);
+	if (ret) {
+		DRM_ERROR("Failed to init encoder\n");
+		goto err_encoder;
+	}
+	encoder->possible_crtcs = 1;
+
+	ret = drm_connector_attach_encoder(connector, encoder);
+	if (ret) {
+		DRM_ERROR("Failed to attach connector to encoder\n");
+		goto err_attach;
+	}
+
+	if (vkmsdev->config->writeback) {
+		writeback = vkms_enable_writeback_connector(vkmsdev);
+		if (writeback)
+			DRM_ERROR("Failed to init writeback connector\n");
+	}
+
+	drm_mode_config_reset(dev);
+
+	return 0;
+
+err_attach:
+	drm_encoder_cleanup(encoder);
+
+err_encoder:
+	drm_connector_cleanup(connector);
+
+err_connector:
+	drm_crtc_cleanup(crtc);
+
+	return ret;
+}