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