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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); | |
888155bb DC |
113 | if (ret) |
114 | ret = -EFAULT; | |
f63f6a59 TH |
115 | vfree(bounce); |
116 | ||
117 | if (unlikely(ret != 0)) | |
118 | DRM_ERROR("Failed to report 3D caps info.\n"); | |
119 | ||
120 | return ret; | |
121 | } | |
2fcd5a73 JB |
122 | |
123 | int vmw_present_ioctl(struct drm_device *dev, void *data, | |
124 | struct drm_file *file_priv) | |
125 | { | |
126 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; | |
127 | struct vmw_private *dev_priv = vmw_priv(dev); | |
128 | struct drm_vmw_present_arg *arg = | |
129 | (struct drm_vmw_present_arg *)data; | |
130 | struct vmw_surface *surface; | |
131 | struct vmw_master *vmaster = vmw_master(file_priv->master); | |
132 | struct drm_vmw_rect __user *clips_ptr; | |
133 | struct drm_vmw_rect *clips = NULL; | |
786b99ed | 134 | struct drm_framebuffer *fb; |
2fcd5a73 | 135 | struct vmw_framebuffer *vfb; |
c0951b79 | 136 | struct vmw_resource *res; |
2fcd5a73 JB |
137 | uint32_t num_clips; |
138 | int ret; | |
139 | ||
140 | num_clips = arg->num_clips; | |
141 | clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr; | |
142 | ||
143 | if (unlikely(num_clips == 0)) | |
144 | return 0; | |
145 | ||
146 | if (clips_ptr == NULL) { | |
147 | DRM_ERROR("Variable clips_ptr must be specified.\n"); | |
148 | ret = -EINVAL; | |
149 | goto out_clips; | |
150 | } | |
151 | ||
24bb5a0c | 152 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
2fcd5a73 JB |
153 | if (clips == NULL) { |
154 | DRM_ERROR("Failed to allocate clip rect list.\n"); | |
155 | ret = -ENOMEM; | |
156 | goto out_clips; | |
157 | } | |
158 | ||
159 | ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); | |
160 | if (ret) { | |
161 | DRM_ERROR("Failed to copy clip rects from userspace.\n"); | |
d2c184fb | 162 | ret = -EFAULT; |
2fcd5a73 JB |
163 | goto out_no_copy; |
164 | } | |
165 | ||
bbe4b99f | 166 | drm_modeset_lock_all(dev); |
2fcd5a73 | 167 | |
786b99ed DV |
168 | fb = drm_framebuffer_lookup(dev, arg->fb_id); |
169 | if (!fb) { | |
2fcd5a73 JB |
170 | DRM_ERROR("Invalid framebuffer id.\n"); |
171 | ret = -EINVAL; | |
172 | goto out_no_fb; | |
173 | } | |
786b99ed | 174 | vfb = vmw_framebuffer_to_vfb(fb); |
2fcd5a73 JB |
175 | |
176 | ret = ttm_read_lock(&vmaster->lock, true); | |
177 | if (unlikely(ret != 0)) | |
178 | goto out_no_ttm_lock; | |
179 | ||
c0951b79 TH |
180 | ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid, |
181 | user_surface_converter, | |
182 | &res); | |
2fcd5a73 JB |
183 | if (ret) |
184 | goto out_no_surface; | |
185 | ||
c0951b79 | 186 | surface = vmw_res_to_srf(res); |
2fcd5a73 JB |
187 | ret = vmw_kms_present(dev_priv, file_priv, |
188 | vfb, surface, arg->sid, | |
189 | arg->dest_x, arg->dest_y, | |
190 | clips, num_clips); | |
191 | ||
192 | /* vmw_user_surface_lookup takes one ref so does new_fb */ | |
193 | vmw_surface_unreference(&surface); | |
194 | ||
195 | out_no_surface: | |
196 | ttm_read_unlock(&vmaster->lock); | |
197 | out_no_ttm_lock: | |
2fd5eaba | 198 | drm_framebuffer_unreference(fb); |
2fcd5a73 | 199 | out_no_fb: |
bbe4b99f | 200 | drm_modeset_unlock_all(dev); |
2fcd5a73 JB |
201 | out_no_copy: |
202 | kfree(clips); | |
203 | out_clips: | |
204 | return ret; | |
205 | } | |
206 | ||
207 | int vmw_present_readback_ioctl(struct drm_device *dev, void *data, | |
208 | struct drm_file *file_priv) | |
209 | { | |
210 | struct vmw_private *dev_priv = vmw_priv(dev); | |
211 | struct drm_vmw_present_readback_arg *arg = | |
212 | (struct drm_vmw_present_readback_arg *)data; | |
213 | struct drm_vmw_fence_rep __user *user_fence_rep = | |
214 | (struct drm_vmw_fence_rep __user *) | |
215 | (unsigned long)arg->fence_rep; | |
216 | struct vmw_master *vmaster = vmw_master(file_priv->master); | |
217 | struct drm_vmw_rect __user *clips_ptr; | |
218 | struct drm_vmw_rect *clips = NULL; | |
786b99ed | 219 | struct drm_framebuffer *fb; |
2fcd5a73 JB |
220 | struct vmw_framebuffer *vfb; |
221 | uint32_t num_clips; | |
222 | int ret; | |
223 | ||
224 | num_clips = arg->num_clips; | |
225 | clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr; | |
226 | ||
227 | if (unlikely(num_clips == 0)) | |
228 | return 0; | |
229 | ||
230 | if (clips_ptr == NULL) { | |
231 | DRM_ERROR("Argument clips_ptr must be specified.\n"); | |
232 | ret = -EINVAL; | |
233 | goto out_clips; | |
234 | } | |
235 | ||
24bb5a0c | 236 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
2fcd5a73 JB |
237 | if (clips == NULL) { |
238 | DRM_ERROR("Failed to allocate clip rect list.\n"); | |
239 | ret = -ENOMEM; | |
240 | goto out_clips; | |
241 | } | |
242 | ||
243 | ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); | |
244 | if (ret) { | |
245 | DRM_ERROR("Failed to copy clip rects from userspace.\n"); | |
d2c184fb | 246 | ret = -EFAULT; |
2fcd5a73 JB |
247 | goto out_no_copy; |
248 | } | |
249 | ||
bbe4b99f | 250 | drm_modeset_lock_all(dev); |
2fcd5a73 | 251 | |
786b99ed DV |
252 | fb = drm_framebuffer_lookup(dev, arg->fb_id); |
253 | if (!fb) { | |
2fcd5a73 JB |
254 | DRM_ERROR("Invalid framebuffer id.\n"); |
255 | ret = -EINVAL; | |
256 | goto out_no_fb; | |
257 | } | |
258 | ||
786b99ed | 259 | vfb = vmw_framebuffer_to_vfb(fb); |
2fcd5a73 JB |
260 | if (!vfb->dmabuf) { |
261 | DRM_ERROR("Framebuffer not dmabuf backed.\n"); | |
262 | ret = -EINVAL; | |
2fd5eaba | 263 | goto out_no_ttm_lock; |
2fcd5a73 JB |
264 | } |
265 | ||
266 | ret = ttm_read_lock(&vmaster->lock, true); | |
267 | if (unlikely(ret != 0)) | |
268 | goto out_no_ttm_lock; | |
269 | ||
270 | ret = vmw_kms_readback(dev_priv, file_priv, | |
271 | vfb, user_fence_rep, | |
272 | clips, num_clips); | |
273 | ||
274 | ttm_read_unlock(&vmaster->lock); | |
275 | out_no_ttm_lock: | |
2fd5eaba | 276 | drm_framebuffer_unreference(fb); |
2fcd5a73 | 277 | out_no_fb: |
bbe4b99f | 278 | drm_modeset_unlock_all(dev); |
2fcd5a73 JB |
279 | out_no_copy: |
280 | kfree(clips); | |
281 | out_clips: | |
282 | return ret; | |
283 | } | |
5438ae88 TH |
284 | |
285 | ||
286 | /** | |
287 | * vmw_fops_poll - wrapper around the drm_poll function | |
288 | * | |
289 | * @filp: See the linux fops poll documentation. | |
290 | * @wait: See the linux fops poll documentation. | |
291 | * | |
292 | * Wrapper around the drm_poll function that makes sure the device is | |
293 | * processing the fifo if drm_poll decides to wait. | |
294 | */ | |
295 | unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait) | |
296 | { | |
297 | struct drm_file *file_priv = filp->private_data; | |
298 | struct vmw_private *dev_priv = | |
299 | vmw_priv(file_priv->minor->dev); | |
300 | ||
301 | vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); | |
302 | return drm_poll(filp, wait); | |
303 | } | |
304 | ||
305 | ||
306 | /** | |
307 | * vmw_fops_read - wrapper around the drm_read function | |
308 | * | |
309 | * @filp: See the linux fops read documentation. | |
310 | * @buffer: See the linux fops read documentation. | |
311 | * @count: See the linux fops read documentation. | |
312 | * offset: See the linux fops read documentation. | |
313 | * | |
314 | * Wrapper around the drm_read function that makes sure the device is | |
315 | * processing the fifo if drm_read decides to wait. | |
316 | */ | |
317 | ssize_t vmw_fops_read(struct file *filp, char __user *buffer, | |
318 | size_t count, loff_t *offset) | |
319 | { | |
320 | struct drm_file *file_priv = filp->private_data; | |
321 | struct vmw_private *dev_priv = | |
322 | vmw_priv(file_priv->minor->dev); | |
323 | ||
324 | vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); | |
325 | return drm_read(filp, buffer, count, offset); | |
326 | } |