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
vmw_getparam_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)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
vmw_get_cap_3d_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)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
vmw_present_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)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
vmw_present_readback_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)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
