diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 172 |
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; +} |