Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / qxl / qxl_gem.c

diff --git a/kernel/drivers/gpu/drm/qxl/qxl_gem.c b/kernel/drivers/gpu/drm/qxl/qxl_gem.c
new file mode 100644 (file)
index 0000000..b96f0c9
--- /dev/null
+++ b/kernel/drivers/gpu/drm/qxl/qxl_gem.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2013 Red Hat Inc.
+ *
+ * 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 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 HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: Dave Airlie
+ *          Alon Levy
+ */
+
+#include "drmP.h"
+#include "drm/drm.h"
+#include "qxl_drv.h"
+#include "qxl_object.h"
+
+void qxl_gem_object_free(struct drm_gem_object *gobj)
+{
+       struct qxl_bo *qobj = gem_to_qxl_bo(gobj);
+
+       if (qobj)
+               qxl_bo_unref(&qobj);
+}
+
+int qxl_gem_object_create(struct qxl_device *qdev, int size,
+                         int alignment, int initial_domain,
+                         bool discardable, bool kernel,
+                         struct qxl_surface *surf,
+                         struct drm_gem_object **obj)
+{
+       struct qxl_bo *qbo;
+       int r;
+
+       *obj = NULL;
+       /* At least align on page size */
+       if (alignment < PAGE_SIZE)
+               alignment = PAGE_SIZE;
+       r = qxl_bo_create(qdev, size, kernel, false, initial_domain, surf, &qbo);
+       if (r) {
+               if (r != -ERESTARTSYS)
+                       DRM_ERROR(
+                       "Failed to allocate GEM object (%d, %d, %u, %d)\n",
+                                 size, initial_domain, alignment, r);
+               return r;
+       }
+       *obj = &qbo->gem_base;
+
+       mutex_lock(&qdev->gem.mutex);
+       list_add_tail(&qbo->list, &qdev->gem.objects);
+       mutex_unlock(&qdev->gem.mutex);
+
+       return 0;
+}
+
+int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
+                                     struct drm_file *file_priv,
+                                     u32 domain,
+                                     size_t size,
+                                     struct qxl_surface *surf,
+                                     struct qxl_bo **qobj,
+                                     uint32_t *handle)
+{
+       struct drm_gem_object *gobj;
+       int r;
+
+       BUG_ON(!qobj);
+       BUG_ON(!handle);
+
+       r = qxl_gem_object_create(qdev, size, 0,
+                                 domain,
+                                 false, false, surf,
+                                 &gobj);
+       if (r)
+               return -ENOMEM;
+       r = drm_gem_handle_create(file_priv, gobj, handle);
+       if (r)
+               return r;
+       /* drop reference from allocate - handle holds it now */
+       *qobj = gem_to_qxl_bo(gobj);
+       drm_gem_object_unreference_unlocked(gobj);
+       return 0;
+}
+
+int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
+{
+       return 0;
+}
+
+void qxl_gem_object_close(struct drm_gem_object *obj,
+                         struct drm_file *file_priv)
+{
+}
+
+int qxl_gem_init(struct qxl_device *qdev)
+{
+       INIT_LIST_HEAD(&qdev->gem.objects);
+       return 0;
+}
+
+void qxl_gem_fini(struct qxl_device *qdev)
+{
+       qxl_bo_force_delete(qdev);
+}