| /************************************************************************** |
| * |
| * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA |
| * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDERS, AUTHORS 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 "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) |
| { |
| struct vmw_private *dev_priv = vmw_priv(dev); |
| struct drm_vmw_getparam_arg *param = |
| (struct drm_vmw_getparam_arg *)data; |
| |
| switch (param->param) { |
| case DRM_VMW_PARAM_NUM_STREAMS: |
| param->value = vmw_overlay_num_overlays(dev_priv); |
| break; |
| case DRM_VMW_PARAM_NUM_FREE_STREAMS: |
| param->value = vmw_overlay_num_free_overlays(dev_priv); |
| break; |
| case DRM_VMW_PARAM_3D: |
| param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0; |
| break; |
| case DRM_VMW_PARAM_HW_CAPS: |
| param->value = dev_priv->capabilities; |
| break; |
| case DRM_VMW_PARAM_FIFO_CAPS: |
| param->value = dev_priv->fifo.capabilities; |
| break; |
| case DRM_VMW_PARAM_MAX_FB_SIZE: |
| param->value = dev_priv->vram_size; |
| break; |
| case DRM_VMW_PARAM_FIFO_HW_VERSION: |
| { |
| __le32 __iomem *fifo_mem = dev_priv->mmio_virt; |
| |
| param->value = ioread32(fifo_mem + SVGA_FIFO_3D_HWVERSION); |
| break; |
| } |
| default: |
| DRM_ERROR("Illegal vmwgfx get param request: %d\n", |
| param->param); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| |
| int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_vmw_get_3d_cap_arg *arg = |
| (struct drm_vmw_get_3d_cap_arg *) data; |
| struct vmw_private *dev_priv = vmw_priv(dev); |
| uint32_t size; |
| __le32 __iomem *fifo_mem; |
| void __user *buffer = (void __user *)((unsigned long)(arg->buffer)); |
| void *bounce; |
| int ret; |
| |
| if (unlikely(arg->pad64 != 0)) { |
| DRM_ERROR("Illegal GET_3D_CAP argument.\n"); |
| return -EINVAL; |
| } |
| |
| size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) << 2; |
| |
| if (arg->max_size < size) |
| size = arg->max_size; |
| |
| bounce = vmalloc(size); |
| if (unlikely(bounce == NULL)) { |
| DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n"); |
| return -ENOMEM; |
| } |
| |
| fifo_mem = dev_priv->mmio_virt; |
| memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size); |
| |
| ret = copy_to_user(buffer, bounce, size); |
| vfree(bounce); |
| |
| if (unlikely(ret != 0)) |
| DRM_ERROR("Failed to report 3D caps info.\n"); |
| |
| 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; |
| } |
| |
| |
| /** |
| * 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); |
| } |