1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /************************************************************************** 3 * 4 * Copyright 2009-2022 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 "vmwgfx_kms.h" 31 32 #include <drm/vmwgfx_drm.h> 33 #include <linux/pci.h> 34 #include <linux/vmalloc.h> 35 36 int vmw_getparam_ioctl(struct drm_device *dev, void *data, 37 struct drm_file *file_priv) 38 { 39 struct vmw_private *dev_priv = vmw_priv(dev); 40 struct drm_vmw_getparam_arg *param = 41 (struct drm_vmw_getparam_arg *)data; 42 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); 43 44 switch (param->param) { 45 case DRM_VMW_PARAM_NUM_STREAMS: 46 param->value = vmw_overlay_num_overlays(dev_priv); 47 break; 48 case DRM_VMW_PARAM_NUM_FREE_STREAMS: 49 param->value = vmw_overlay_num_free_overlays(dev_priv); 50 break; 51 case DRM_VMW_PARAM_3D: 52 param->value = vmw_supports_3d(dev_priv) ? 1 : 0; 53 break; 54 case DRM_VMW_PARAM_HW_CAPS: 55 param->value = dev_priv->capabilities; 56 break; 57 case DRM_VMW_PARAM_HW_CAPS2: 58 param->value = dev_priv->capabilities2; 59 break; 60 case DRM_VMW_PARAM_FIFO_CAPS: 61 param->value = vmw_fifo_caps(dev_priv); 62 break; 63 case DRM_VMW_PARAM_MAX_FB_SIZE: 64 param->value = dev_priv->max_primary_mem; 65 break; 66 case DRM_VMW_PARAM_FIFO_HW_VERSION: 67 { 68 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) 69 param->value = SVGA3D_HWVERSION_WS8_B1; 70 else 71 param->value = vmw_fifo_mem_read( 72 dev_priv, 73 ((vmw_fifo_caps(dev_priv) & 74 SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ? 75 SVGA_FIFO_3D_HWVERSION_REVISED : 76 SVGA_FIFO_3D_HWVERSION)); 77 break; 78 } 79 case DRM_VMW_PARAM_MAX_SURF_MEMORY: 80 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) && 81 !vmw_fp->gb_aware) 82 param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2; 83 else 84 param->value = dev_priv->memory_size; 85 break; 86 case DRM_VMW_PARAM_3D_CAPS_SIZE: 87 param->value = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware); 88 break; 89 case DRM_VMW_PARAM_MAX_MOB_MEMORY: 90 vmw_fp->gb_aware = true; 91 param->value = dev_priv->max_mob_pages * PAGE_SIZE; 92 break; 93 case DRM_VMW_PARAM_MAX_MOB_SIZE: 94 param->value = dev_priv->max_mob_size; 95 break; 96 case DRM_VMW_PARAM_SCREEN_TARGET: 97 param->value = 98 (dev_priv->active_display_unit == vmw_du_screen_target); 99 break; 100 case DRM_VMW_PARAM_DX: 101 param->value = has_sm4_context(dev_priv); 102 break; 103 case DRM_VMW_PARAM_SM4_1: 104 param->value = has_sm4_1_context(dev_priv); 105 break; 106 case DRM_VMW_PARAM_SM5: 107 param->value = has_sm5_context(dev_priv); 108 break; 109 case DRM_VMW_PARAM_GL43: 110 param->value = has_gl43_context(dev_priv); 111 break; 112 case DRM_VMW_PARAM_DEVICE_ID: 113 param->value = to_pci_dev(dev_priv->drm.dev)->device; 114 break; 115 default: 116 return -EINVAL; 117 } 118 119 return 0; 120 } 121 122 123 int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, 124 struct drm_file *file_priv) 125 { 126 struct drm_vmw_get_3d_cap_arg *arg = 127 (struct drm_vmw_get_3d_cap_arg *) data; 128 struct vmw_private *dev_priv = vmw_priv(dev); 129 uint32_t size; 130 void __user *buffer = (void __user *)((unsigned long)(arg->buffer)); 131 void *bounce = NULL; 132 int ret; 133 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); 134 135 if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) { 136 VMW_DEBUG_USER("Illegal GET_3D_CAP argument.\n"); 137 return -EINVAL; 138 } 139 140 size = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware); 141 if (unlikely(size == 0)) { 142 DRM_ERROR("Failed to figure out the devcaps size (no 3D).\n"); 143 return -ENOMEM; 144 } 145 146 if (arg->max_size < size) 147 size = arg->max_size; 148 149 bounce = vzalloc(size); 150 if (unlikely(bounce == NULL)) { 151 DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n"); 152 return -ENOMEM; 153 } 154 155 ret = vmw_devcaps_copy(dev_priv, vmw_fp->gb_aware, bounce, size); 156 if (unlikely (ret != 0)) 157 goto out_err; 158 159 ret = copy_to_user(buffer, bounce, size); 160 if (ret) 161 ret = -EFAULT; 162 out_err: 163 vfree(bounce); 164 165 if (unlikely(ret != 0)) 166 DRM_ERROR("Failed to report 3D caps info.\n"); 167 168 return ret; 169 } 170 171 int vmw_present_ioctl(struct drm_device *dev, void *data, 172 struct drm_file *file_priv) 173 { 174 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 175 struct vmw_private *dev_priv = vmw_priv(dev); 176 struct drm_vmw_present_arg *arg = 177 (struct drm_vmw_present_arg *)data; 178 struct vmw_surface *surface; 179 struct drm_vmw_rect __user *clips_ptr; 180 struct drm_vmw_rect *clips = NULL; 181 struct drm_framebuffer *fb; 182 struct vmw_framebuffer *vfb; 183 struct vmw_resource *res; 184 uint32_t num_clips; 185 int ret; 186 187 num_clips = arg->num_clips; 188 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr; 189 190 if (unlikely(num_clips == 0)) 191 return 0; 192 193 if (clips_ptr == NULL) { 194 VMW_DEBUG_USER("Variable clips_ptr must be specified.\n"); 195 ret = -EINVAL; 196 goto out_clips; 197 } 198 199 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 200 if (clips == NULL) { 201 DRM_ERROR("Failed to allocate clip rect list.\n"); 202 ret = -ENOMEM; 203 goto out_clips; 204 } 205 206 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); 207 if (ret) { 208 DRM_ERROR("Failed to copy clip rects from userspace.\n"); 209 ret = -EFAULT; 210 goto out_no_copy; 211 } 212 213 drm_modeset_lock_all(dev); 214 215 fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id); 216 if (!fb) { 217 VMW_DEBUG_USER("Invalid framebuffer id.\n"); 218 ret = -ENOENT; 219 goto out_no_fb; 220 } 221 vfb = vmw_framebuffer_to_vfb(fb); 222 223 ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid, 224 user_surface_converter, 225 &res); 226 if (ret) 227 goto out_no_surface; 228 229 surface = vmw_res_to_srf(res); 230 ret = vmw_kms_present(dev_priv, file_priv, 231 vfb, surface, arg->sid, 232 arg->dest_x, arg->dest_y, 233 clips, num_clips); 234 235 /* vmw_user_surface_lookup takes one ref so does new_fb */ 236 vmw_surface_unreference(&surface); 237 238 out_no_surface: 239 drm_framebuffer_put(fb); 240 out_no_fb: 241 drm_modeset_unlock_all(dev); 242 out_no_copy: 243 kfree(clips); 244 out_clips: 245 return ret; 246 } 247 248 int vmw_present_readback_ioctl(struct drm_device *dev, void *data, 249 struct drm_file *file_priv) 250 { 251 struct vmw_private *dev_priv = vmw_priv(dev); 252 struct drm_vmw_present_readback_arg *arg = 253 (struct drm_vmw_present_readback_arg *)data; 254 struct drm_vmw_fence_rep __user *user_fence_rep = 255 (struct drm_vmw_fence_rep __user *) 256 (unsigned long)arg->fence_rep; 257 struct drm_vmw_rect __user *clips_ptr; 258 struct drm_vmw_rect *clips = NULL; 259 struct drm_framebuffer *fb; 260 struct vmw_framebuffer *vfb; 261 uint32_t num_clips; 262 int ret; 263 264 num_clips = arg->num_clips; 265 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr; 266 267 if (unlikely(num_clips == 0)) 268 return 0; 269 270 if (clips_ptr == NULL) { 271 VMW_DEBUG_USER("Argument clips_ptr must be specified.\n"); 272 ret = -EINVAL; 273 goto out_clips; 274 } 275 276 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 277 if (clips == NULL) { 278 DRM_ERROR("Failed to allocate clip rect list.\n"); 279 ret = -ENOMEM; 280 goto out_clips; 281 } 282 283 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); 284 if (ret) { 285 DRM_ERROR("Failed to copy clip rects from userspace.\n"); 286 ret = -EFAULT; 287 goto out_no_copy; 288 } 289 290 drm_modeset_lock_all(dev); 291 292 fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id); 293 if (!fb) { 294 VMW_DEBUG_USER("Invalid framebuffer id.\n"); 295 ret = -ENOENT; 296 goto out_no_fb; 297 } 298 299 vfb = vmw_framebuffer_to_vfb(fb); 300 if (!vfb->bo) { 301 VMW_DEBUG_USER("Framebuffer not buffer backed.\n"); 302 ret = -EINVAL; 303 goto out_no_ttm_lock; 304 } 305 306 ret = vmw_kms_readback(dev_priv, file_priv, 307 vfb, user_fence_rep, 308 clips, num_clips); 309 310 out_no_ttm_lock: 311 drm_framebuffer_put(fb); 312 out_no_fb: 313 drm_modeset_unlock_all(dev); 314 out_no_copy: 315 kfree(clips); 316 out_clips: 317 return ret; 318 } 319