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 | |
35 | int 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 | vmw: dev_priv, |
72 | fifo_reg: ((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(vmw: dev_priv, gb_aware: 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 | |
122 | int 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(vmw: dev_priv, gb_aware: 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(vmw: dev_priv, gb_aware: vmw_fp->gb_aware, dst: bounce, dst_size: size); |
155 | if (unlikely (ret != 0)) |
156 | goto out_err; |
157 | |
158 | ret = copy_to_user(to: buffer, from: bounce, n: size); |
159 | if (ret) |
160 | ret = -EFAULT; |
161 | out_err: |
162 | vfree(addr: bounce); |
163 | |
164 | if (unlikely(ret != 0)) |
165 | DRM_ERROR("Failed to report 3D caps info.\n" ); |
166 | |
167 | return ret; |
168 | } |
169 | |
170 | int 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(n: num_clips, size: 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(to: clips, from: clips_ptr, n: 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, id: 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, handle: arg->sid, |
223 | converter: user_surface_converter, |
224 | p_res: &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, sid: arg->sid, |
231 | destX: arg->dest_x, destY: arg->dest_y, |
232 | clips, num_clips); |
233 | |
234 | /* vmw_user_surface_lookup takes one ref so does new_fb */ |
235 | vmw_surface_unreference(srf: &surface); |
236 | |
237 | out_no_surface: |
238 | drm_framebuffer_put(fb); |
239 | out_no_fb: |
240 | drm_modeset_unlock_all(dev); |
241 | out_no_copy: |
242 | kfree(objp: clips); |
243 | out_clips: |
244 | return ret; |
245 | } |
246 | |
247 | int 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(n: num_clips, size: 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(to: clips, from: clips_ptr, n: 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, id: 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 | vclips: clips, num_clips); |
308 | |
309 | out_no_ttm_lock: |
310 | drm_framebuffer_put(fb); |
311 | out_no_fb: |
312 | drm_modeset_unlock_all(dev); |
313 | out_no_copy: |
314 | kfree(objp: clips); |
315 | out_clips: |
316 | return ret; |
317 | } |
318 | |