1 files changed, 115 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
new file mode 100644
index 00000000000..dfc94391d71
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2008 Maarten Maathuis.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "drmP.h"
+#include "drm_crtc_helper.h"
+#include "nouveau_drv.h"
+#include "nouveau_fb.h"
+#include "nouveau_fbcon.h"
+
+static void
+nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
+{
+        struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+        struct drm_device *dev = drm_fb->dev;
+
+        if (drm_fb->fbdev)
+                nouveau_fbcon_remove(dev, drm_fb);
+
+        if (fb->nvbo) {
+                mutex_lock(&dev->struct_mutex);
+                drm_gem_object_unreference(fb->nvbo->gem);
+                mutex_unlock(&dev->struct_mutex);
+        }
+
+        drm_framebuffer_cleanup(drm_fb);
+        kfree(fb);
+}
+
+static int
+nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
+                                       struct drm_file *file_priv,
+                                       unsigned int *handle)
+{
+        struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+
+        return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle);
+}
+
+static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
+        .destroy = nouveau_user_framebuffer_destroy,
+        .create_handle = nouveau_user_framebuffer_create_handle,
+};
+
+struct drm_framebuffer *
+nouveau_framebuffer_create(struct drm_device *dev, struct nouveau_bo *nvbo,
+                           struct drm_mode_fb_cmd *mode_cmd)
+{
+        struct nouveau_framebuffer *fb;
+        int ret;
+
+        fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
+        if (!fb)
+                return NULL;
+
+        ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
+        if (ret) {
+                kfree(fb);
+                return NULL;
+        }
+
+        drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd);
+
+        fb->nvbo = nvbo;
+        return &fb->base;
+}
+
+static struct drm_framebuffer *
+nouveau_user_framebuffer_create(struct drm_device *dev,
+                                struct drm_file *file_priv,
+                                struct drm_mode_fb_cmd *mode_cmd)
+{
+        struct drm_framebuffer *fb;
+        struct drm_gem_object *gem;
+
+        gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
+        if (!gem)
+                return NULL;
+
+        fb = nouveau_framebuffer_create(dev, nouveau_gem_object(gem), mode_cmd);
+        if (!fb) {
+                drm_gem_object_unreference(gem);
+                return NULL;
+        }
+
+        return fb;
+}
+
+const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
+        .fb_create = nouveau_user_framebuffer_create,
+        .fb_changed = nouveau_fbcon_probe,
+};
+