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fb1d9738 JB |
1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA | |
4 | * All Rights Reserved. | |
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" | |
760285e7 | 29 | #include <drm/vmwgfx_drm.h> |
2fcd5a73 | 30 | #include "vmwgfx_kms.h" |
fb1d9738 JB |
31 | |
32 | int vmw_getparam_ioctl(struct drm_device *dev, void *data, | |
33 | struct drm_file *file_priv) | |
34 | { | |
35 | struct vmw_private *dev_priv = vmw_priv(dev); | |
36 | struct drm_vmw_getparam_arg *param = | |
37 | (struct drm_vmw_getparam_arg *)data; | |
38 | ||
39 | switch (param->param) { | |
40 | case DRM_VMW_PARAM_NUM_STREAMS: | |
41 | param->value = vmw_overlay_num_overlays(dev_priv); | |
42 | break; | |
43 | case DRM_VMW_PARAM_NUM_FREE_STREAMS: | |
44 | param->value = vmw_overlay_num_free_overlays(dev_priv); | |
45 | break; | |
46 | case DRM_VMW_PARAM_3D: | |
8e19a951 | 47 | param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0; |
fb1d9738 | 48 | break; |
f77cef3d TH |
49 | case DRM_VMW_PARAM_HW_CAPS: |
50 | param->value = dev_priv->capabilities; | |
51 | break; | |
52 | case DRM_VMW_PARAM_FIFO_CAPS: | |
53 | param->value = dev_priv->fifo.capabilities; | |
54 | break; | |
30f47fc8 TH |
55 | case DRM_VMW_PARAM_MAX_FB_SIZE: |
56 | param->value = dev_priv->vram_size; | |
57 | break; | |
f63f6a59 TH |
58 | case DRM_VMW_PARAM_FIFO_HW_VERSION: |
59 | { | |
60 | __le32 __iomem *fifo_mem = dev_priv->mmio_virt; | |
ebd4c6f6 | 61 | const struct vmw_fifo_state *fifo = &dev_priv->fifo; |
f63f6a59 | 62 | |
ebd4c6f6 TH |
63 | param->value = |
64 | ioread32(fifo_mem + | |
65 | ((fifo->capabilities & | |
66 | SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ? | |
67 | SVGA_FIFO_3D_HWVERSION_REVISED : | |
68 | SVGA_FIFO_3D_HWVERSION)); | |
f63f6a59 TH |
69 | break; |
70 | } | |
fb1d9738 JB |
71 | default: |
72 | DRM_ERROR("Illegal vmwgfx get param request: %d\n", | |
73 | param->param); | |
74 | return -EINVAL; | |
75 | } | |
76 | ||
77 | return 0; | |
78 | } | |
f63f6a59 TH |
79 | |
80 | ||
81 | int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, | |
82 | struct drm_file *file_priv) | |
83 | { | |
84 | struct drm_vmw_get_3d_cap_arg *arg = | |
85 | (struct drm_vmw_get_3d_cap_arg *) data; | |
86 | struct vmw_private *dev_priv = vmw_priv(dev); | |
87 | uint32_t size; | |
88 | __le32 __iomem *fifo_mem; | |
89 | void __user *buffer = (void __user *)((unsigned long)(arg->buffer)); | |
90 | void *bounce; | |
91 | int ret; | |
92 | ||
93 | if (unlikely(arg->pad64 != 0)) { | |
94 | DRM_ERROR("Illegal GET_3D_CAP argument.\n"); | |
95 | return -EINVAL; | |
96 | } | |
97 | ||
98 | size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) << 2; | |
99 | ||
100 | if (arg->max_size < size) | |
101 | size = arg->max_size; | |
102 | ||
103 | bounce = vmalloc(size); | |
104 | if (unlikely(bounce == NULL)) { | |
105 | DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n"); | |
106 | return -ENOMEM; | |
107 | } | |
108 | ||
109 | fifo_mem = dev_priv->mmio_virt; | |
110 | memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size); | |
111 | ||
112 | ret = copy_to_user(buffer, bounce, size); | |
113 | vfree(bounce); | |
114 | ||
115 | if (unlikely(ret != 0)) | |
116 | DRM_ERROR("Failed to report 3D caps info.\n"); | |
117 | ||
118 | return ret; | |
119 | } | |
2fcd5a73 JB |
120 | |
121 | int vmw_present_ioctl(struct drm_device *dev, void *data, | |
122 | struct drm_file *file_priv) | |
123 | { | |
124 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; | |
125 | struct vmw_private *dev_priv = vmw_priv(dev); | |
126 | struct drm_vmw_present_arg *arg = | |
127 | (struct drm_vmw_present_arg *)data; | |
128 | struct vmw_surface *surface; | |
129 | struct vmw_master *vmaster = vmw_master(file_priv->master); | |
130 | struct drm_vmw_rect __user *clips_ptr; | |
131 | struct drm_vmw_rect *clips = NULL; | |
132 | struct drm_mode_object *obj; | |
133 | struct vmw_framebuffer *vfb; | |
134 | uint32_t num_clips; | |
135 | int ret; | |
136 | ||
137 | num_clips = arg->num_clips; | |
138 | clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr; | |
139 | ||
140 | if (unlikely(num_clips == 0)) | |
141 | return 0; | |
142 | ||
143 | if (clips_ptr == NULL) { | |
144 | DRM_ERROR("Variable clips_ptr must be specified.\n"); | |
145 | ret = -EINVAL; | |
146 | goto out_clips; | |
147 | } | |
148 | ||
24bb5a0c | 149 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
2fcd5a73 JB |
150 | if (clips == NULL) { |
151 | DRM_ERROR("Failed to allocate clip rect list.\n"); | |
152 | ret = -ENOMEM; | |
153 | goto out_clips; | |
154 | } | |
155 | ||
156 | ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); | |
157 | if (ret) { | |
158 | DRM_ERROR("Failed to copy clip rects from userspace.\n"); | |
d2c184fb | 159 | ret = -EFAULT; |
2fcd5a73 JB |
160 | goto out_no_copy; |
161 | } | |
162 | ||
163 | ret = mutex_lock_interruptible(&dev->mode_config.mutex); | |
164 | if (unlikely(ret != 0)) { | |
165 | ret = -ERESTARTSYS; | |
166 | goto out_no_mode_mutex; | |
167 | } | |
168 | ||
169 | obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB); | |
170 | if (!obj) { | |
171 | DRM_ERROR("Invalid framebuffer id.\n"); | |
172 | ret = -EINVAL; | |
173 | goto out_no_fb; | |
174 | } | |
2fcd5a73 | 175 | vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj)); |
2fcd5a73 JB |
176 | |
177 | ret = ttm_read_lock(&vmaster->lock, true); | |
178 | if (unlikely(ret != 0)) | |
179 | goto out_no_ttm_lock; | |
180 | ||
181 | ret = vmw_user_surface_lookup_handle(dev_priv, tfile, arg->sid, | |
182 | &surface); | |
183 | if (ret) | |
184 | goto out_no_surface; | |
185 | ||
186 | ret = vmw_kms_present(dev_priv, file_priv, | |
187 | vfb, surface, arg->sid, | |
188 | arg->dest_x, arg->dest_y, | |
189 | clips, num_clips); | |
190 | ||
191 | /* vmw_user_surface_lookup takes one ref so does new_fb */ | |
192 | vmw_surface_unreference(&surface); | |
193 | ||
194 | out_no_surface: | |
195 | ttm_read_unlock(&vmaster->lock); | |
196 | out_no_ttm_lock: | |
197 | out_no_fb: | |
198 | mutex_unlock(&dev->mode_config.mutex); | |
199 | out_no_mode_mutex: | |
200 | out_no_copy: | |
201 | kfree(clips); | |
202 | out_clips: | |
203 | return ret; | |
204 | } | |
205 | ||
206 | int vmw_present_readback_ioctl(struct drm_device *dev, void *data, | |
207 | struct drm_file *file_priv) | |
208 | { | |
209 | struct vmw_private *dev_priv = vmw_priv(dev); | |
210 | struct drm_vmw_present_readback_arg *arg = | |
211 | (struct drm_vmw_present_readback_arg *)data; | |
212 | struct drm_vmw_fence_rep __user *user_fence_rep = | |
213 | (struct drm_vmw_fence_rep __user *) | |
214 | (unsigned long)arg->fence_rep; | |
215 | struct vmw_master *vmaster = vmw_master(file_priv->master); | |
216 | struct drm_vmw_rect __user *clips_ptr; | |
217 | struct drm_vmw_rect *clips = NULL; | |
218 | struct drm_mode_object *obj; | |
219 | struct vmw_framebuffer *vfb; | |
220 | uint32_t num_clips; | |
221 | int ret; | |
222 | ||
223 | num_clips = arg->num_clips; | |
224 | clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr; | |
225 | ||
226 | if (unlikely(num_clips == 0)) | |
227 | return 0; | |
228 | ||
229 | if (clips_ptr == NULL) { | |
230 | DRM_ERROR("Argument clips_ptr must be specified.\n"); | |
231 | ret = -EINVAL; | |
232 | goto out_clips; | |
233 | } | |
234 | ||
24bb5a0c | 235 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
2fcd5a73 JB |
236 | if (clips == NULL) { |
237 | DRM_ERROR("Failed to allocate clip rect list.\n"); | |
238 | ret = -ENOMEM; | |
239 | goto out_clips; | |
240 | } | |
241 | ||
242 | ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); | |
243 | if (ret) { | |
244 | DRM_ERROR("Failed to copy clip rects from userspace.\n"); | |
d2c184fb | 245 | ret = -EFAULT; |
2fcd5a73 JB |
246 | goto out_no_copy; |
247 | } | |
248 | ||
249 | ret = mutex_lock_interruptible(&dev->mode_config.mutex); | |
250 | if (unlikely(ret != 0)) { | |
251 | ret = -ERESTARTSYS; | |
252 | goto out_no_mode_mutex; | |
253 | } | |
254 | ||
255 | obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB); | |
256 | if (!obj) { | |
257 | DRM_ERROR("Invalid framebuffer id.\n"); | |
258 | ret = -EINVAL; | |
259 | goto out_no_fb; | |
260 | } | |
261 | ||
262 | vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj)); | |
263 | if (!vfb->dmabuf) { | |
264 | DRM_ERROR("Framebuffer not dmabuf backed.\n"); | |
265 | ret = -EINVAL; | |
266 | goto out_no_fb; | |
267 | } | |
268 | ||
269 | ret = ttm_read_lock(&vmaster->lock, true); | |
270 | if (unlikely(ret != 0)) | |
271 | goto out_no_ttm_lock; | |
272 | ||
273 | ret = vmw_kms_readback(dev_priv, file_priv, | |
274 | vfb, user_fence_rep, | |
275 | clips, num_clips); | |
276 | ||
277 | ttm_read_unlock(&vmaster->lock); | |
278 | out_no_ttm_lock: | |
279 | out_no_fb: | |
280 | mutex_unlock(&dev->mode_config.mutex); | |
281 | out_no_mode_mutex: | |
282 | out_no_copy: | |
283 | kfree(clips); | |
284 | out_clips: | |
285 | return ret; | |
286 | } | |
5438ae88 TH |
287 | |
288 | ||
289 | /** | |
290 | * vmw_fops_poll - wrapper around the drm_poll function | |
291 | * | |
292 | * @filp: See the linux fops poll documentation. | |
293 | * @wait: See the linux fops poll documentation. | |
294 | * | |
295 | * Wrapper around the drm_poll function that makes sure the device is | |
296 | * processing the fifo if drm_poll decides to wait. | |
297 | */ | |
298 | unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait) | |
299 | { | |
300 | struct drm_file *file_priv = filp->private_data; | |
301 | struct vmw_private *dev_priv = | |
302 | vmw_priv(file_priv->minor->dev); | |
303 | ||
304 | vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); | |
305 | return drm_poll(filp, wait); | |
306 | } | |
307 | ||
308 | ||
309 | /** | |
310 | * vmw_fops_read - wrapper around the drm_read function | |
311 | * | |
312 | * @filp: See the linux fops read documentation. | |
313 | * @buffer: See the linux fops read documentation. | |
314 | * @count: See the linux fops read documentation. | |
315 | * offset: See the linux fops read documentation. | |
316 | * | |
317 | * Wrapper around the drm_read function that makes sure the device is | |
318 | * processing the fifo if drm_read decides to wait. | |
319 | */ | |
320 | ssize_t vmw_fops_read(struct file *filp, char __user *buffer, | |
321 | size_t count, loff_t *offset) | |
322 | { | |
323 | struct drm_file *file_priv = filp->private_data; | |
324 | struct vmw_private *dev_priv = | |
325 | vmw_priv(file_priv->minor->dev); | |
326 | ||
327 | vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); | |
328 | return drm_read(filp, buffer, count, offset); | |
329 | } |