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9a186645 DA |
1 | /** |
2 | * \file radeon_ioc32.c | |
3 | * | |
4 | * 32-bit ioctl compatibility routines for the Radeon DRM. | |
5 | * | |
6 | * \author Paul Mackerras <paulus@samba.org> | |
7 | * | |
8 | * Copyright (C) Paul Mackerras 2005 | |
9 | * All Rights Reserved. | |
10 | * | |
11 | * Permission is hereby granted, free of charge, to any person obtaining a | |
12 | * copy of this software and associated documentation files (the "Software"), | |
13 | * to deal in the Software without restriction, including without limitation | |
14 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
15 | * and/or sell copies of the Software, and to permit persons to whom the | |
16 | * Software is furnished to do so, subject to the following conditions: | |
17 | * | |
18 | * The above copyright notice and this permission notice (including the next | |
19 | * paragraph) shall be included in all copies or substantial portions of the | |
20 | * Software. | |
21 | * | |
22 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
23 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
24 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
25 | * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
27 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
28 | * IN THE SOFTWARE. | |
29 | */ | |
30 | #include <linux/compat.h> | |
31 | #include <linux/ioctl32.h> | |
32 | ||
33 | #include "drmP.h" | |
34 | #include "drm.h" | |
35 | #include "radeon_drm.h" | |
36 | #include "radeon_drv.h" | |
37 | ||
38 | typedef struct drm_radeon_init32 { | |
39 | int func; | |
40 | u32 sarea_priv_offset; | |
41 | int is_pci; | |
42 | int cp_mode; | |
43 | int gart_size; | |
44 | int ring_size; | |
45 | int usec_timeout; | |
46 | ||
47 | unsigned int fb_bpp; | |
48 | unsigned int front_offset, front_pitch; | |
49 | unsigned int back_offset, back_pitch; | |
50 | unsigned int depth_bpp; | |
51 | unsigned int depth_offset, depth_pitch; | |
52 | ||
53 | u32 fb_offset; | |
54 | u32 mmio_offset; | |
55 | u32 ring_offset; | |
56 | u32 ring_rptr_offset; | |
57 | u32 buffers_offset; | |
58 | u32 gart_textures_offset; | |
59 | } drm_radeon_init32_t; | |
60 | ||
61 | static int compat_radeon_cp_init(struct file *file, unsigned int cmd, | |
62 | unsigned long arg) | |
63 | { | |
64 | drm_radeon_init32_t init32; | |
65 | drm_radeon_init_t __user *init; | |
66 | ||
67 | if (copy_from_user(&init32, (void __user *)arg, sizeof(init32))) | |
68 | return -EFAULT; | |
69 | ||
70 | init = compat_alloc_user_space(sizeof(*init)); | |
71 | if (!access_ok(VERIFY_WRITE, init, sizeof(*init)) | |
72 | || __put_user(init32.func, &init->func) | |
73 | || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset) | |
74 | || __put_user(init32.is_pci, &init->is_pci) | |
75 | || __put_user(init32.cp_mode, &init->cp_mode) | |
76 | || __put_user(init32.gart_size, &init->gart_size) | |
77 | || __put_user(init32.ring_size, &init->ring_size) | |
78 | || __put_user(init32.usec_timeout, &init->usec_timeout) | |
79 | || __put_user(init32.fb_bpp, &init->fb_bpp) | |
80 | || __put_user(init32.front_offset, &init->front_offset) | |
81 | || __put_user(init32.front_pitch, &init->front_pitch) | |
82 | || __put_user(init32.back_offset, &init->back_offset) | |
83 | || __put_user(init32.back_pitch, &init->back_pitch) | |
84 | || __put_user(init32.depth_bpp, &init->depth_bpp) | |
85 | || __put_user(init32.depth_offset, &init->depth_offset) | |
86 | || __put_user(init32.depth_pitch, &init->depth_pitch) | |
87 | || __put_user(init32.fb_offset, &init->fb_offset) | |
88 | || __put_user(init32.mmio_offset, &init->mmio_offset) | |
89 | || __put_user(init32.ring_offset, &init->ring_offset) | |
90 | || __put_user(init32.ring_rptr_offset, &init->ring_rptr_offset) | |
91 | || __put_user(init32.buffers_offset, &init->buffers_offset) | |
92 | || __put_user(init32.gart_textures_offset, | |
93 | &init->gart_textures_offset)) | |
94 | return -EFAULT; | |
95 | ||
96 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 97 | DRM_IOCTL_RADEON_CP_INIT, (unsigned long)init); |
9a186645 DA |
98 | } |
99 | ||
100 | typedef struct drm_radeon_clear32 { | |
101 | unsigned int flags; | |
102 | unsigned int clear_color; | |
103 | unsigned int clear_depth; | |
104 | unsigned int color_mask; | |
b5e89ed5 DA |
105 | unsigned int depth_mask; /* misnamed field: should be stencil */ |
106 | u32 depth_boxes; | |
9a186645 DA |
107 | } drm_radeon_clear32_t; |
108 | ||
109 | static int compat_radeon_cp_clear(struct file *file, unsigned int cmd, | |
110 | unsigned long arg) | |
111 | { | |
112 | drm_radeon_clear32_t clr32; | |
113 | drm_radeon_clear_t __user *clr; | |
114 | ||
115 | if (copy_from_user(&clr32, (void __user *)arg, sizeof(clr32))) | |
116 | return -EFAULT; | |
117 | ||
118 | clr = compat_alloc_user_space(sizeof(*clr)); | |
119 | if (!access_ok(VERIFY_WRITE, clr, sizeof(*clr)) | |
120 | || __put_user(clr32.flags, &clr->flags) | |
121 | || __put_user(clr32.clear_color, &clr->clear_color) | |
122 | || __put_user(clr32.clear_depth, &clr->clear_depth) | |
123 | || __put_user(clr32.color_mask, &clr->color_mask) | |
124 | || __put_user(clr32.depth_mask, &clr->depth_mask) | |
125 | || __put_user((void __user *)(unsigned long)clr32.depth_boxes, | |
126 | &clr->depth_boxes)) | |
127 | return -EFAULT; | |
128 | ||
129 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 130 | DRM_IOCTL_RADEON_CLEAR, (unsigned long)clr); |
9a186645 DA |
131 | } |
132 | ||
133 | typedef struct drm_radeon_stipple32 { | |
134 | u32 mask; | |
135 | } drm_radeon_stipple32_t; | |
136 | ||
137 | static int compat_radeon_cp_stipple(struct file *file, unsigned int cmd, | |
138 | unsigned long arg) | |
139 | { | |
b5e89ed5 | 140 | drm_radeon_stipple32_t __user *argp = (void __user *)arg; |
9a186645 DA |
141 | drm_radeon_stipple_t __user *request; |
142 | u32 mask; | |
143 | ||
144 | if (get_user(mask, &argp->mask)) | |
145 | return -EFAULT; | |
146 | ||
147 | request = compat_alloc_user_space(sizeof(*request)); | |
148 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
b5e89ed5 | 149 | || __put_user((unsigned int __user *)(unsigned long)mask, |
9a186645 DA |
150 | &request->mask)) |
151 | return -EFAULT; | |
152 | ||
153 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 154 | DRM_IOCTL_RADEON_STIPPLE, (unsigned long)request); |
9a186645 DA |
155 | } |
156 | ||
157 | typedef struct drm_radeon_tex_image32 { | |
b5e89ed5 | 158 | unsigned int x, y; /* Blit coordinates */ |
9a186645 DA |
159 | unsigned int width, height; |
160 | u32 data; | |
161 | } drm_radeon_tex_image32_t; | |
162 | ||
163 | typedef struct drm_radeon_texture32 { | |
164 | unsigned int offset; | |
165 | int pitch; | |
166 | int format; | |
b5e89ed5 | 167 | int width; /* Texture image coordinates */ |
9a186645 DA |
168 | int height; |
169 | u32 image; | |
170 | } drm_radeon_texture32_t; | |
171 | ||
172 | static int compat_radeon_cp_texture(struct file *file, unsigned int cmd, | |
173 | unsigned long arg) | |
174 | { | |
175 | drm_radeon_texture32_t req32; | |
176 | drm_radeon_texture_t __user *request; | |
177 | drm_radeon_tex_image32_t img32; | |
178 | drm_radeon_tex_image_t __user *image; | |
179 | ||
b5e89ed5 | 180 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
181 | return -EFAULT; |
182 | if (req32.image == 0) | |
183 | return -EINVAL; | |
184 | if (copy_from_user(&img32, (void __user *)(unsigned long)req32.image, | |
185 | sizeof(img32))) | |
186 | return -EFAULT; | |
187 | ||
188 | request = compat_alloc_user_space(sizeof(*request) + sizeof(*image)); | |
189 | if (!access_ok(VERIFY_WRITE, request, | |
190 | sizeof(*request) + sizeof(*image))) | |
191 | return -EFAULT; | |
192 | image = (drm_radeon_tex_image_t __user *) (request + 1); | |
193 | ||
194 | if (__put_user(req32.offset, &request->offset) | |
195 | || __put_user(req32.pitch, &request->pitch) | |
196 | || __put_user(req32.format, &request->format) | |
197 | || __put_user(req32.width, &request->width) | |
198 | || __put_user(req32.height, &request->height) | |
199 | || __put_user(image, &request->image) | |
200 | || __put_user(img32.x, &image->x) | |
201 | || __put_user(img32.y, &image->y) | |
202 | || __put_user(img32.width, &image->width) | |
203 | || __put_user(img32.height, &image->height) | |
204 | || __put_user((const void __user *)(unsigned long)img32.data, | |
205 | &image->data)) | |
206 | return -EFAULT; | |
207 | ||
208 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 209 | DRM_IOCTL_RADEON_TEXTURE, (unsigned long)request); |
9a186645 DA |
210 | } |
211 | ||
212 | typedef struct drm_radeon_vertex2_32 { | |
b5e89ed5 DA |
213 | int idx; /* Index of vertex buffer */ |
214 | int discard; /* Client finished with buffer? */ | |
9a186645 DA |
215 | int nr_states; |
216 | u32 state; | |
217 | int nr_prims; | |
218 | u32 prim; | |
219 | } drm_radeon_vertex2_32_t; | |
220 | ||
221 | static int compat_radeon_cp_vertex2(struct file *file, unsigned int cmd, | |
222 | unsigned long arg) | |
223 | { | |
224 | drm_radeon_vertex2_32_t req32; | |
225 | drm_radeon_vertex2_t __user *request; | |
226 | ||
b5e89ed5 | 227 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
228 | return -EFAULT; |
229 | ||
230 | request = compat_alloc_user_space(sizeof(*request)); | |
231 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
232 | || __put_user(req32.idx, &request->idx) | |
233 | || __put_user(req32.discard, &request->discard) | |
234 | || __put_user(req32.nr_states, &request->nr_states) | |
235 | || __put_user((void __user *)(unsigned long)req32.state, | |
236 | &request->state) | |
237 | || __put_user(req32.nr_prims, &request->nr_prims) | |
238 | || __put_user((void __user *)(unsigned long)req32.prim, | |
239 | &request->prim)) | |
240 | return -EFAULT; | |
241 | ||
242 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 243 | DRM_IOCTL_RADEON_VERTEX2, (unsigned long)request); |
9a186645 DA |
244 | } |
245 | ||
246 | typedef struct drm_radeon_cmd_buffer32 { | |
247 | int bufsz; | |
248 | u32 buf; | |
249 | int nbox; | |
250 | u32 boxes; | |
251 | } drm_radeon_cmd_buffer32_t; | |
252 | ||
253 | static int compat_radeon_cp_cmdbuf(struct file *file, unsigned int cmd, | |
254 | unsigned long arg) | |
255 | { | |
256 | drm_radeon_cmd_buffer32_t req32; | |
257 | drm_radeon_cmd_buffer_t __user *request; | |
258 | ||
b5e89ed5 | 259 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
260 | return -EFAULT; |
261 | ||
262 | request = compat_alloc_user_space(sizeof(*request)); | |
263 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
264 | || __put_user(req32.bufsz, &request->bufsz) | |
265 | || __put_user((void __user *)(unsigned long)req32.buf, | |
266 | &request->buf) | |
267 | || __put_user(req32.nbox, &request->nbox) | |
268 | || __put_user((void __user *)(unsigned long)req32.boxes, | |
269 | &request->boxes)) | |
270 | return -EFAULT; | |
271 | ||
272 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 273 | DRM_IOCTL_RADEON_CMDBUF, (unsigned long)request); |
9a186645 DA |
274 | } |
275 | ||
276 | typedef struct drm_radeon_getparam32 { | |
277 | int param; | |
278 | u32 value; | |
279 | } drm_radeon_getparam32_t; | |
280 | ||
281 | static int compat_radeon_cp_getparam(struct file *file, unsigned int cmd, | |
282 | unsigned long arg) | |
283 | { | |
284 | drm_radeon_getparam32_t req32; | |
285 | drm_radeon_getparam_t __user *request; | |
286 | ||
b5e89ed5 | 287 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
288 | return -EFAULT; |
289 | ||
290 | request = compat_alloc_user_space(sizeof(*request)); | |
291 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
292 | || __put_user(req32.param, &request->param) | |
293 | || __put_user((void __user *)(unsigned long)req32.value, | |
294 | &request->value)) | |
295 | return -EFAULT; | |
296 | ||
297 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 298 | DRM_IOCTL_RADEON_GETPARAM, (unsigned long)request); |
9a186645 DA |
299 | } |
300 | ||
301 | typedef struct drm_radeon_mem_alloc32 { | |
302 | int region; | |
303 | int alignment; | |
304 | int size; | |
305 | u32 region_offset; /* offset from start of fb or GART */ | |
306 | } drm_radeon_mem_alloc32_t; | |
307 | ||
308 | static int compat_radeon_mem_alloc(struct file *file, unsigned int cmd, | |
309 | unsigned long arg) | |
310 | { | |
311 | drm_radeon_mem_alloc32_t req32; | |
312 | drm_radeon_mem_alloc_t __user *request; | |
313 | ||
b5e89ed5 | 314 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
315 | return -EFAULT; |
316 | ||
317 | request = compat_alloc_user_space(sizeof(*request)); | |
318 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
319 | || __put_user(req32.region, &request->region) | |
320 | || __put_user(req32.alignment, &request->alignment) | |
321 | || __put_user(req32.size, &request->size) | |
322 | || __put_user((int __user *)(unsigned long)req32.region_offset, | |
323 | &request->region_offset)) | |
324 | return -EFAULT; | |
325 | ||
326 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 327 | DRM_IOCTL_RADEON_ALLOC, (unsigned long)request); |
9a186645 DA |
328 | } |
329 | ||
330 | typedef struct drm_radeon_irq_emit32 { | |
331 | u32 irq_seq; | |
332 | } drm_radeon_irq_emit32_t; | |
333 | ||
334 | static int compat_radeon_irq_emit(struct file *file, unsigned int cmd, | |
335 | unsigned long arg) | |
336 | { | |
337 | drm_radeon_irq_emit32_t req32; | |
338 | drm_radeon_irq_emit_t __user *request; | |
339 | ||
b5e89ed5 | 340 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
341 | return -EFAULT; |
342 | ||
343 | request = compat_alloc_user_space(sizeof(*request)); | |
344 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
345 | || __put_user((int __user *)(unsigned long)req32.irq_seq, | |
346 | &request->irq_seq)) | |
347 | return -EFAULT; | |
348 | ||
349 | return drm_ioctl(file->f_dentry->d_inode, file, | |
b5e89ed5 | 350 | DRM_IOCTL_RADEON_IRQ_EMIT, (unsigned long)request); |
9a186645 DA |
351 | } |
352 | ||
353 | drm_ioctl_compat_t *radeon_compat_ioctls[] = { | |
354 | [DRM_RADEON_CP_INIT] = compat_radeon_cp_init, | |
355 | [DRM_RADEON_CLEAR] = compat_radeon_cp_clear, | |
356 | [DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple, | |
357 | [DRM_RADEON_TEXTURE] = compat_radeon_cp_texture, | |
358 | [DRM_RADEON_VERTEX2] = compat_radeon_cp_vertex2, | |
359 | [DRM_RADEON_CMDBUF] = compat_radeon_cp_cmdbuf, | |
360 | [DRM_RADEON_GETPARAM] = compat_radeon_cp_getparam, | |
361 | [DRM_RADEON_ALLOC] = compat_radeon_mem_alloc, | |
362 | [DRM_RADEON_IRQ_EMIT] = compat_radeon_irq_emit, | |
363 | }; | |
364 | ||
365 | /** | |
366 | * Called whenever a 32-bit process running under a 64-bit kernel | |
367 | * performs an ioctl on /dev/dri/card<n>. | |
368 | * | |
369 | * \param filp file pointer. | |
370 | * \param cmd command. | |
371 | * \param arg user argument. | |
372 | * \return zero on success or negative number on failure. | |
373 | */ | |
b5e89ed5 | 374 | long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
9a186645 DA |
375 | { |
376 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
377 | drm_ioctl_compat_t *fn = NULL; | |
378 | int ret; | |
379 | ||
380 | if (nr < DRM_COMMAND_BASE) | |
381 | return drm_compat_ioctl(filp, cmd, arg); | |
382 | ||
383 | if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls)) | |
384 | fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE]; | |
385 | ||
386 | lock_kernel(); /* XXX for now */ | |
387 | if (fn != NULL) | |
b5e89ed5 | 388 | ret = (*fn) (filp, cmd, arg); |
9a186645 DA |
389 | else |
390 | ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg); | |
391 | unlock_kernel(); | |
392 | ||
393 | return ret; | |
394 | } |