#include "vmwgfx_drv.h"
#include "vmwgfx_drm.h"
+#include "vmwgfx_kms.h"
int vmw_getparam_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
return ret;
}
+
+int vmw_present_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_present_arg *arg =
+ (struct drm_vmw_present_arg *)data;
+ struct vmw_surface *surface;
+ struct vmw_master *vmaster = vmw_master(file_priv->master);
+ struct drm_vmw_rect __user *clips_ptr;
+ struct drm_vmw_rect *clips = NULL;
+ struct drm_mode_object *obj;
+ struct vmw_framebuffer *vfb;
+ uint32_t num_clips;
+ int ret;
+
+ num_clips = arg->num_clips;
+ clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
+
+ if (unlikely(num_clips == 0))
+ return 0;
+
+ if (clips_ptr == NULL) {
+ DRM_ERROR("Variable clips_ptr must be specified.\n");
+ ret = -EINVAL;
+ goto out_clips;
+ }
+
+ clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ if (clips == NULL) {
+ DRM_ERROR("Failed to allocate clip rect list.\n");
+ ret = -ENOMEM;
+ goto out_clips;
+ }
+
+ ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
+ if (ret) {
+ DRM_ERROR("Failed to copy clip rects from userspace.\n");
+ ret = -EFAULT;
+ goto out_no_copy;
+ }
+
+ ret = mutex_lock_interruptible(&dev->mode_config.mutex);
+ if (unlikely(ret != 0)) {
+ ret = -ERESTARTSYS;
+ goto out_no_mode_mutex;
+ }
+
+ obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("Invalid framebuffer id.\n");
+ ret = -EINVAL;
+ goto out_no_fb;
+ }
+
+ vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj));
+ if (!vfb->dmabuf) {
+ DRM_ERROR("Framebuffer not dmabuf backed.\n");
+ ret = -EINVAL;
+ goto out_no_fb;
+ }
+
+ ret = ttm_read_lock(&vmaster->lock, true);
+ if (unlikely(ret != 0))
+ goto out_no_ttm_lock;
+
+ ret = vmw_user_surface_lookup_handle(dev_priv, tfile, arg->sid,
+ &surface);
+ if (ret)
+ goto out_no_surface;
+
+ ret = vmw_kms_present(dev_priv, file_priv,
+ vfb, surface, arg->sid,
+ arg->dest_x, arg->dest_y,
+ clips, num_clips);
+
+ /* vmw_user_surface_lookup takes one ref so does new_fb */
+ vmw_surface_unreference(&surface);
+
+out_no_surface:
+ ttm_read_unlock(&vmaster->lock);
+out_no_ttm_lock:
+out_no_fb:
+ mutex_unlock(&dev->mode_config.mutex);
+out_no_mode_mutex:
+out_no_copy:
+ kfree(clips);
+out_clips:
+ return ret;
+}
+
+int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_present_readback_arg *arg =
+ (struct drm_vmw_present_readback_arg *)data;
+ struct drm_vmw_fence_rep __user *user_fence_rep =
+ (struct drm_vmw_fence_rep __user *)
+ (unsigned long)arg->fence_rep;
+ struct vmw_master *vmaster = vmw_master(file_priv->master);
+ struct drm_vmw_rect __user *clips_ptr;
+ struct drm_vmw_rect *clips = NULL;
+ struct drm_mode_object *obj;
+ struct vmw_framebuffer *vfb;
+ uint32_t num_clips;
+ int ret;
+
+ num_clips = arg->num_clips;
+ clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
+
+ if (unlikely(num_clips == 0))
+ return 0;
+
+ if (clips_ptr == NULL) {
+ DRM_ERROR("Argument clips_ptr must be specified.\n");
+ ret = -EINVAL;
+ goto out_clips;
+ }
+
+ clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ if (clips == NULL) {
+ DRM_ERROR("Failed to allocate clip rect list.\n");
+ ret = -ENOMEM;
+ goto out_clips;
+ }
+
+ ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
+ if (ret) {
+ DRM_ERROR("Failed to copy clip rects from userspace.\n");
+ ret = -EFAULT;
+ goto out_no_copy;
+ }
+
+ ret = mutex_lock_interruptible(&dev->mode_config.mutex);
+ if (unlikely(ret != 0)) {
+ ret = -ERESTARTSYS;
+ goto out_no_mode_mutex;
+ }
+
+ obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_ERROR("Invalid framebuffer id.\n");
+ ret = -EINVAL;
+ goto out_no_fb;
+ }
+
+ vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj));
+ if (!vfb->dmabuf) {
+ DRM_ERROR("Framebuffer not dmabuf backed.\n");
+ ret = -EINVAL;
+ goto out_no_fb;
+ }
+
+ ret = ttm_read_lock(&vmaster->lock, true);
+ if (unlikely(ret != 0))
+ goto out_no_ttm_lock;
+
+ ret = vmw_kms_readback(dev_priv, file_priv,
+ vfb, user_fence_rep,
+ clips, num_clips);
+
+ ttm_read_unlock(&vmaster->lock);
+out_no_ttm_lock:
+out_no_fb:
+ mutex_unlock(&dev->mode_config.mutex);
+out_no_mode_mutex:
+out_no_copy:
+ kfree(clips);
+out_clips:
+ return ret;
+}
+
+
+/**
+ * vmw_fops_poll - wrapper around the drm_poll function
+ *
+ * @filp: See the linux fops poll documentation.
+ * @wait: See the linux fops poll documentation.
+ *
+ * Wrapper around the drm_poll function that makes sure the device is
+ * processing the fifo if drm_poll decides to wait.
+ */
+unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct vmw_private *dev_priv =
+ vmw_priv(file_priv->minor->dev);
+
+ vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
+ return drm_poll(filp, wait);
+}
+
+
+/**
+ * vmw_fops_read - wrapper around the drm_read function
+ *
+ * @filp: See the linux fops read documentation.
+ * @buffer: See the linux fops read documentation.
+ * @count: See the linux fops read documentation.
+ * offset: See the linux fops read documentation.
+ *
+ * Wrapper around the drm_read function that makes sure the device is
+ * processing the fifo if drm_read decides to wait.
+ */
+ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct vmw_private *dev_priv =
+ vmw_priv(file_priv->minor->dev);
+
+ vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
+ return drm_read(filp, buffer, count, offset);
+}
git.openpandora.org / pandora-kernel.git / blobdiff