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