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authorJakob Bornecrantz <jakob@vmware.com>2011-10-04 20:13:26 +0200
committerDave Airlie <airlied@redhat.com>2011-10-05 10:17:17 +0100
commit2fcd5a73bfd5341876f9ea6b5adcc1dd814226d4 (patch)
tree88aa55c24bc1fe620a0753ab1598fe2727b19352 /drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
parent44031d25ccface0ae647d664347ae3d3a8016f5f (diff)
vmwgfx: Add present and readback ioctls
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index 5ecf96660644..c0284a4784c9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -27,6 +27,7 @@
#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)
@@ -110,3 +111,174 @@ int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
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");
+ 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");
+ 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;
+}