LXR linux/drivers/gpu/drm/vmwgfx/vmwgfx

   1/**************************************************************************
   2 *
   3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4 * All Rights Reserved.
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a
   7 * copy of this software and associated documentation files (the
   8 * "Software"), to deal in the Software without restriction, including
   9 * without limitation the rights to use, copy, modify, merge, publish,
  10 * distribute, sub license, and/or sell copies of the Software, and to
  11 * permit persons to whom the Software is furnished to do so, subject to
  12 * the following conditions:
  13 *
  14 * The above copyright notice and this permission notice (including the
  15 * next paragraph) shall be included in all copies or substantial portions
  16 * of the Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25 *
  26 **************************************************************************/
  27
  28#include "vmwgfx_drv.h"
  29#include "vmwgfx_drm.h"
  30
  31int vmw_getparam_ioctl(struct drm_device *dev, void *data,
  32                       struct drm_file *file_priv)
  33{
  34        struct vmw_private *dev_priv = vmw_priv(dev);
  35        struct drm_vmw_getparam_arg *param =
  36            (struct drm_vmw_getparam_arg *)data;
  37
  38        switch (param->param) {
  39        case DRM_VMW_PARAM_NUM_STREAMS:
  40                param->value = vmw_overlay_num_overlays(dev_priv);
  41                break;
  42        case DRM_VMW_PARAM_NUM_FREE_STREAMS:
  43                param->value = vmw_overlay_num_free_overlays(dev_priv);
  44                break;
  45        case DRM_VMW_PARAM_3D:
  46                param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0;
  47                break;
  48        case DRM_VMW_PARAM_FIFO_OFFSET:
  49                param->value = dev_priv->mmio_start;
  50                break;
  51        case DRM_VMW_PARAM_HW_CAPS:
  52                param->value = dev_priv->capabilities;
  53                break;
  54        case DRM_VMW_PARAM_FIFO_CAPS:
  55                param->value = dev_priv->fifo.capabilities;
  56                break;
  57        case DRM_VMW_PARAM_MAX_FB_SIZE:
  58                param->value = dev_priv->vram_size;
  59                break;
  60        default:
  61                DRM_ERROR("Illegal vmwgfx get param request: %d\n",
  62                          param->param);
  63                return -EINVAL;
  64        }
  65
  66        return 0;
  67}
  68
  69int vmw_fifo_debug_ioctl(struct drm_device *dev, void *data,
  70                         struct drm_file *file_priv)
  71{
  72        struct vmw_private *dev_priv = vmw_priv(dev);
  73        struct vmw_fifo_state *fifo_state = &dev_priv->fifo;
  74        struct drm_vmw_fifo_debug_arg *arg =
  75            (struct drm_vmw_fifo_debug_arg *)data;
  76        __le32 __user *buffer = (__le32 __user *)
  77            (unsigned long)arg->debug_buffer;
  78
  79        if (unlikely(fifo_state->last_buffer == NULL))
  80                return -EINVAL;
  81
  82        if (arg->debug_buffer_size < fifo_state->last_data_size) {
  83                arg->used_size = arg->debug_buffer_size;
  84                arg->did_not_fit = 1;
  85        } else {
  86                arg->used_size = fifo_state->last_data_size;
  87                arg->did_not_fit = 0;
  88        }
  89        return copy_to_user(buffer, fifo_state->last_buffer, arg->used_size);
  90}
  91