1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /************************************************************************** 3 * 4 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA 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_devcaps.h" 30 #include <drm/vmwgfx_drm.h> 31 #include "vmwgfx_kms.h" 32 33 int vmw_getparam_ioctl(struct drm_device *dev, void *data, 34 struct drm_file *file_priv) 35 { 36 struct vmw_private *dev_priv = vmw_priv(dev); 37 struct drm_vmw_getparam_arg *param = 38 (struct drm_vmw_getparam_arg *)data; 39 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); 40 41 switch (param->param) { 42 case DRM_VMW_PARAM_NUM_STREAMS: 43 param->value = vmw_overlay_num_overlays(dev_priv); 44 break; 45 case DRM_VMW_PARAM_NUM_FREE_STREAMS: 46 param->value = vmw_overlay_num_free_overlays(dev_priv); 47 break; 48 case DRM_VMW_PARAM_3D: 49 param->value = vmw_supports_3d(dev_priv) ? 1 : 0; 50 break; 51 case DRM_VMW_PARAM_HW_CAPS: 52 param->value = dev_priv->capabilities; 53 break; 54 case DRM_VMW_PARAM_HW_CAPS2: 55 param->value = dev_priv->capabilities2; 56 break; 57 case DRM_VMW_PARAM_FIFO_CAPS: 58 param->value = vmw_fifo_caps(dev_priv); 59 break; 60 case DRM_VMW_PARAM_MAX_FB_SIZE: 61 param->value = dev_priv->max_primary_mem; 62 break; 63 case DRM_VMW_PARAM_FIFO_HW_VERSION: 64 { 65 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) { 66 param->value = SVGA3D_HWVERSION_WS8_B1; 67 break; 68 } 69 70 param->value = 71 vmw_fifo_mem_read(dev_priv, 72 ((vmw_fifo_caps(dev_priv) & 73 SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ? 74 SVGA_FIFO_3D_HWVERSION_REVISED : 75 SVGA_FIFO_3D_HWVERSION)); 76 break; 77 } 78 case DRM_VMW_PARAM_MAX_SURF_MEMORY: 79 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) && 80 !vmw_fp->gb_aware) 81 param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2; 82 else 83 param->value = dev_priv->memory_size; 84 break; 85 case DRM_VMW_PARAM_3D_CAPS_SIZE: 86 param->value = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware); 87 break; 88 case DRM_VMW_PARAM_MAX_MOB_MEMORY: 89 vmw_fp->gb_aware = true; 90 param->value = dev_priv->max_mob_pages * PAGE_SIZE; 91 break; 92 case DRM_VMW_PARAM_MAX_MOB_SIZE: 93 param->value = dev_priv->max_mob_size; 94 break; 95 case DRM_VMW_PARAM_SCREEN_TARGET: 96 param->value = 97 (dev_priv->active_display_unit == vmw_du_screen_target); 98 break; 99 case DRM_VMW_PARAM_DX: 100 param->value = has_sm4_context(dev_priv); 101 break; 102 case DRM_VMW_PARAM_SM4_1: 103 param->value = has_sm4_1_context(dev_priv); 104 break; 105 case DRM_VMW_PARAM_SM5: 106 param->value = has_sm5_context(dev_priv); 107 break; 108 default: 109 return -EINVAL; 110 } 111 112 return 0; 113 } 114 115 116 int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, 117 struct drm_file *file_priv) 118 { 119 struct drm_vmw_get_3d_cap_arg *arg = 120 (struct drm_vmw_get_3d_cap_arg *) data; 121 struct vmw_private *dev_priv = vmw_priv(dev); 122 uint32_t size; 123 void __user *buffer = (void __user *)((unsigned long)(arg->buffer)); 124 void *bounce = NULL; 125 int ret; 126 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); 127 128 if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) { 129 VMW_DEBUG_USER("Illegal GET_3D_CAP argument.\n"); 130 return -EINVAL; 131 } 132 133 size = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware); 134 if (unlikely(size == 0)) { 135 DRM_ERROR("Failed to figure out the devcaps size (no 3D).\n"); 136 return -ENOMEM; 137 } 138 139 if (arg->max_size < size) 140 size = arg->max_size; 141 142 bounce = vzalloc(size); 143 if (unlikely(bounce == NULL)) { 144 DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n"); 145 return -ENOMEM; 146 } 147 148 ret = vmw_devcaps_copy(dev_priv, vmw_fp->gb_aware, bounce, size); 149 if (unlikely (ret != 0)) 150 goto out_err; 151 152 ret = copy_to_user(buffer, bounce, size); 153 if (ret) 154 ret = -EFAULT; 155 out_err: 156 vfree(bounce); 157 158 if (unlikely(ret != 0)) 159 DRM_ERROR("Failed to report 3D caps info.\n"); 160 161 return ret; 162 } 163 164 int vmw_present_ioctl(struct drm_device *dev, void *data, 165 struct drm_file *file_priv) 166 { 167 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 168 struct vmw_private *dev_priv = vmw_priv(dev); 169 struct drm_vmw_present_arg *arg = 170 (struct drm_vmw_present_arg *)data; 171 struct vmw_surface *surface; 172 struct drm_vmw_rect __user *clips_ptr; 173 struct drm_vmw_rect *clips = NULL; 174 struct drm_framebuffer *fb; 175 struct vmw_framebuffer *vfb; 176 struct vmw_resource *res; 177 uint32_t num_clips; 178 int ret; 179 180 num_clips = arg->num_clips; 181 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr; 182 183 if (unlikely(num_clips == 0)) 184 return 0; 185 186 if (clips_ptr == NULL) { 187 VMW_DEBUG_USER("Variable clips_ptr must be specified.\n"); 188 ret = -EINVAL; 189 goto out_clips; 190 } 191 192 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 193 if (clips == NULL) { 194 DRM_ERROR("Failed to allocate clip rect list.\n"); 195 ret = -ENOMEM; 196 goto out_clips; 197 } 198 199 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); 200 if (ret) { 201 DRM_ERROR("Failed to copy clip rects from userspace.\n"); 202 ret = -EFAULT; 203 goto out_no_copy; 204 } 205 206 drm_modeset_lock_all(dev); 207 208 fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id); 209 if (!fb) { 210 VMW_DEBUG_USER("Invalid framebuffer id.\n"); 211 ret = -ENOENT; 212 goto out_no_fb; 213 } 214 vfb = vmw_framebuffer_to_vfb(fb); 215 216 ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid, 217 user_surface_converter, 218 &res); 219 if (ret) 220 goto out_no_surface; 221 222 surface = vmw_res_to_srf(res); 223 ret = vmw_kms_present(dev_priv, file_priv, 224 vfb, surface, arg->sid, 225 arg->dest_x, arg->dest_y, 226 clips, num_clips); 227 228 /* vmw_user_surface_lookup takes one ref so does new_fb */ 229 vmw_surface_unreference(&surface); 230 231 out_no_surface: 232 drm_framebuffer_put(fb); 233 out_no_fb: 234 drm_modeset_unlock_all(dev); 235 out_no_copy: 236 kfree(clips); 237 out_clips: 238 return ret; 239 } 240 241 int vmw_present_readback_ioctl(struct drm_device *dev, void *data, 242 struct drm_file *file_priv) 243 { 244 struct vmw_private *dev_priv = vmw_priv(dev); 245 struct drm_vmw_present_readback_arg *arg = 246 (struct drm_vmw_present_readback_arg *)data; 247 struct drm_vmw_fence_rep __user *user_fence_rep = 248 (struct drm_vmw_fence_rep __user *) 249 (unsigned long)arg->fence_rep; 250 struct drm_vmw_rect __user *clips_ptr; 251 struct drm_vmw_rect *clips = NULL; 252 struct drm_framebuffer *fb; 253 struct vmw_framebuffer *vfb; 254 uint32_t num_clips; 255 int ret; 256 257 num_clips = arg->num_clips; 258 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr; 259 260 if (unlikely(num_clips == 0)) 261 return 0; 262 263 if (clips_ptr == NULL) { 264 VMW_DEBUG_USER("Argument clips_ptr must be specified.\n"); 265 ret = -EINVAL; 266 goto out_clips; 267 } 268 269 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 270 if (clips == NULL) { 271 DRM_ERROR("Failed to allocate clip rect list.\n"); 272 ret = -ENOMEM; 273 goto out_clips; 274 } 275 276 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); 277 if (ret) { 278 DRM_ERROR("Failed to copy clip rects from userspace.\n"); 279 ret = -EFAULT; 280 goto out_no_copy; 281 } 282 283 drm_modeset_lock_all(dev); 284 285 fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id); 286 if (!fb) { 287 VMW_DEBUG_USER("Invalid framebuffer id.\n"); 288 ret = -ENOENT; 289 goto out_no_fb; 290 } 291 292 vfb = vmw_framebuffer_to_vfb(fb); 293 if (!vfb->bo) { 294 VMW_DEBUG_USER("Framebuffer not buffer backed.\n"); 295 ret = -EINVAL; 296 goto out_no_ttm_lock; 297 } 298 299 ret = vmw_kms_readback(dev_priv, file_priv, 300 vfb, user_fence_rep, 301 clips, num_clips); 302 303 out_no_ttm_lock: 304 drm_framebuffer_put(fb); 305 out_no_fb: 306 drm_modeset_unlock_all(dev); 307 out_no_copy: 308 kfree(clips); 309 out_clips: 310 return ret; 311 } 312