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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> | |
9a186645 DA |
31 | |
32 | #include "drmP.h" | |
33 | #include "drm.h" | |
34 | #include "radeon_drm.h" | |
35 | #include "radeon_drv.h" | |
36 | ||
37 | typedef struct drm_radeon_init32 { | |
38 | int func; | |
39 | u32 sarea_priv_offset; | |
40 | int is_pci; | |
41 | int cp_mode; | |
42 | int gart_size; | |
43 | int ring_size; | |
44 | int usec_timeout; | |
45 | ||
46 | unsigned int fb_bpp; | |
47 | unsigned int front_offset, front_pitch; | |
48 | unsigned int back_offset, back_pitch; | |
49 | unsigned int depth_bpp; | |
50 | unsigned int depth_offset, depth_pitch; | |
51 | ||
52 | u32 fb_offset; | |
53 | u32 mmio_offset; | |
54 | u32 ring_offset; | |
55 | u32 ring_rptr_offset; | |
56 | u32 buffers_offset; | |
57 | u32 gart_textures_offset; | |
58 | } drm_radeon_init32_t; | |
59 | ||
60 | static int compat_radeon_cp_init(struct file *file, unsigned int cmd, | |
61 | unsigned long arg) | |
62 | { | |
63 | drm_radeon_init32_t init32; | |
64 | drm_radeon_init_t __user *init; | |
65 | ||
66 | if (copy_from_user(&init32, (void __user *)arg, sizeof(init32))) | |
67 | return -EFAULT; | |
68 | ||
69 | init = compat_alloc_user_space(sizeof(*init)); | |
70 | if (!access_ok(VERIFY_WRITE, init, sizeof(*init)) | |
71 | || __put_user(init32.func, &init->func) | |
72 | || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset) | |
73 | || __put_user(init32.is_pci, &init->is_pci) | |
74 | || __put_user(init32.cp_mode, &init->cp_mode) | |
75 | || __put_user(init32.gart_size, &init->gart_size) | |
76 | || __put_user(init32.ring_size, &init->ring_size) | |
77 | || __put_user(init32.usec_timeout, &init->usec_timeout) | |
78 | || __put_user(init32.fb_bpp, &init->fb_bpp) | |
79 | || __put_user(init32.front_offset, &init->front_offset) | |
80 | || __put_user(init32.front_pitch, &init->front_pitch) | |
81 | || __put_user(init32.back_offset, &init->back_offset) | |
82 | || __put_user(init32.back_pitch, &init->back_pitch) | |
83 | || __put_user(init32.depth_bpp, &init->depth_bpp) | |
84 | || __put_user(init32.depth_offset, &init->depth_offset) | |
85 | || __put_user(init32.depth_pitch, &init->depth_pitch) | |
86 | || __put_user(init32.fb_offset, &init->fb_offset) | |
87 | || __put_user(init32.mmio_offset, &init->mmio_offset) | |
88 | || __put_user(init32.ring_offset, &init->ring_offset) | |
89 | || __put_user(init32.ring_rptr_offset, &init->ring_rptr_offset) | |
90 | || __put_user(init32.buffers_offset, &init->buffers_offset) | |
91 | || __put_user(init32.gart_textures_offset, | |
92 | &init->gart_textures_offset)) | |
93 | return -EFAULT; | |
94 | ||
ed8b6704 | 95 | return drm_ioctl(file, DRM_IOCTL_RADEON_CP_INIT, (unsigned long)init); |
9a186645 DA |
96 | } |
97 | ||
98 | typedef struct drm_radeon_clear32 { | |
99 | unsigned int flags; | |
100 | unsigned int clear_color; | |
101 | unsigned int clear_depth; | |
102 | unsigned int color_mask; | |
b5e89ed5 DA |
103 | unsigned int depth_mask; /* misnamed field: should be stencil */ |
104 | u32 depth_boxes; | |
9a186645 DA |
105 | } drm_radeon_clear32_t; |
106 | ||
107 | static int compat_radeon_cp_clear(struct file *file, unsigned int cmd, | |
108 | unsigned long arg) | |
109 | { | |
110 | drm_radeon_clear32_t clr32; | |
111 | drm_radeon_clear_t __user *clr; | |
112 | ||
113 | if (copy_from_user(&clr32, (void __user *)arg, sizeof(clr32))) | |
114 | return -EFAULT; | |
115 | ||
116 | clr = compat_alloc_user_space(sizeof(*clr)); | |
117 | if (!access_ok(VERIFY_WRITE, clr, sizeof(*clr)) | |
118 | || __put_user(clr32.flags, &clr->flags) | |
119 | || __put_user(clr32.clear_color, &clr->clear_color) | |
120 | || __put_user(clr32.clear_depth, &clr->clear_depth) | |
121 | || __put_user(clr32.color_mask, &clr->color_mask) | |
122 | || __put_user(clr32.depth_mask, &clr->depth_mask) | |
123 | || __put_user((void __user *)(unsigned long)clr32.depth_boxes, | |
124 | &clr->depth_boxes)) | |
125 | return -EFAULT; | |
126 | ||
ed8b6704 | 127 | return drm_ioctl(file, DRM_IOCTL_RADEON_CLEAR, (unsigned long)clr); |
9a186645 DA |
128 | } |
129 | ||
130 | typedef struct drm_radeon_stipple32 { | |
131 | u32 mask; | |
132 | } drm_radeon_stipple32_t; | |
133 | ||
134 | static int compat_radeon_cp_stipple(struct file *file, unsigned int cmd, | |
135 | unsigned long arg) | |
136 | { | |
b5e89ed5 | 137 | drm_radeon_stipple32_t __user *argp = (void __user *)arg; |
9a186645 DA |
138 | drm_radeon_stipple_t __user *request; |
139 | u32 mask; | |
140 | ||
141 | if (get_user(mask, &argp->mask)) | |
142 | return -EFAULT; | |
143 | ||
144 | request = compat_alloc_user_space(sizeof(*request)); | |
145 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
b5e89ed5 | 146 | || __put_user((unsigned int __user *)(unsigned long)mask, |
9a186645 DA |
147 | &request->mask)) |
148 | return -EFAULT; | |
149 | ||
ed8b6704 | 150 | return drm_ioctl(file, DRM_IOCTL_RADEON_STIPPLE, (unsigned long)request); |
9a186645 DA |
151 | } |
152 | ||
153 | typedef struct drm_radeon_tex_image32 { | |
b5e89ed5 | 154 | unsigned int x, y; /* Blit coordinates */ |
9a186645 DA |
155 | unsigned int width, height; |
156 | u32 data; | |
157 | } drm_radeon_tex_image32_t; | |
158 | ||
159 | typedef struct drm_radeon_texture32 { | |
160 | unsigned int offset; | |
161 | int pitch; | |
162 | int format; | |
b5e89ed5 | 163 | int width; /* Texture image coordinates */ |
9a186645 DA |
164 | int height; |
165 | u32 image; | |
166 | } drm_radeon_texture32_t; | |
167 | ||
168 | static int compat_radeon_cp_texture(struct file *file, unsigned int cmd, | |
169 | unsigned long arg) | |
170 | { | |
171 | drm_radeon_texture32_t req32; | |
172 | drm_radeon_texture_t __user *request; | |
173 | drm_radeon_tex_image32_t img32; | |
174 | drm_radeon_tex_image_t __user *image; | |
175 | ||
b5e89ed5 | 176 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
177 | return -EFAULT; |
178 | if (req32.image == 0) | |
179 | return -EINVAL; | |
180 | if (copy_from_user(&img32, (void __user *)(unsigned long)req32.image, | |
181 | sizeof(img32))) | |
182 | return -EFAULT; | |
183 | ||
184 | request = compat_alloc_user_space(sizeof(*request) + sizeof(*image)); | |
185 | if (!access_ok(VERIFY_WRITE, request, | |
186 | sizeof(*request) + sizeof(*image))) | |
187 | return -EFAULT; | |
188 | image = (drm_radeon_tex_image_t __user *) (request + 1); | |
189 | ||
190 | if (__put_user(req32.offset, &request->offset) | |
191 | || __put_user(req32.pitch, &request->pitch) | |
192 | || __put_user(req32.format, &request->format) | |
193 | || __put_user(req32.width, &request->width) | |
194 | || __put_user(req32.height, &request->height) | |
195 | || __put_user(image, &request->image) | |
196 | || __put_user(img32.x, &image->x) | |
197 | || __put_user(img32.y, &image->y) | |
198 | || __put_user(img32.width, &image->width) | |
199 | || __put_user(img32.height, &image->height) | |
200 | || __put_user((const void __user *)(unsigned long)img32.data, | |
201 | &image->data)) | |
202 | return -EFAULT; | |
203 | ||
ed8b6704 | 204 | return drm_ioctl(file, DRM_IOCTL_RADEON_TEXTURE, (unsigned long)request); |
9a186645 DA |
205 | } |
206 | ||
207 | typedef struct drm_radeon_vertex2_32 { | |
b5e89ed5 DA |
208 | int idx; /* Index of vertex buffer */ |
209 | int discard; /* Client finished with buffer? */ | |
9a186645 DA |
210 | int nr_states; |
211 | u32 state; | |
212 | int nr_prims; | |
213 | u32 prim; | |
214 | } drm_radeon_vertex2_32_t; | |
215 | ||
216 | static int compat_radeon_cp_vertex2(struct file *file, unsigned int cmd, | |
217 | unsigned long arg) | |
218 | { | |
219 | drm_radeon_vertex2_32_t req32; | |
220 | drm_radeon_vertex2_t __user *request; | |
221 | ||
b5e89ed5 | 222 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
223 | return -EFAULT; |
224 | ||
225 | request = compat_alloc_user_space(sizeof(*request)); | |
226 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
227 | || __put_user(req32.idx, &request->idx) | |
228 | || __put_user(req32.discard, &request->discard) | |
229 | || __put_user(req32.nr_states, &request->nr_states) | |
230 | || __put_user((void __user *)(unsigned long)req32.state, | |
231 | &request->state) | |
232 | || __put_user(req32.nr_prims, &request->nr_prims) | |
233 | || __put_user((void __user *)(unsigned long)req32.prim, | |
234 | &request->prim)) | |
235 | return -EFAULT; | |
236 | ||
ed8b6704 | 237 | return drm_ioctl(file, DRM_IOCTL_RADEON_VERTEX2, (unsigned long)request); |
9a186645 DA |
238 | } |
239 | ||
240 | typedef struct drm_radeon_cmd_buffer32 { | |
241 | int bufsz; | |
242 | u32 buf; | |
243 | int nbox; | |
244 | u32 boxes; | |
245 | } drm_radeon_cmd_buffer32_t; | |
246 | ||
247 | static int compat_radeon_cp_cmdbuf(struct file *file, unsigned int cmd, | |
248 | unsigned long arg) | |
249 | { | |
250 | drm_radeon_cmd_buffer32_t req32; | |
251 | drm_radeon_cmd_buffer_t __user *request; | |
252 | ||
b5e89ed5 | 253 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
254 | return -EFAULT; |
255 | ||
256 | request = compat_alloc_user_space(sizeof(*request)); | |
257 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
258 | || __put_user(req32.bufsz, &request->bufsz) | |
259 | || __put_user((void __user *)(unsigned long)req32.buf, | |
260 | &request->buf) | |
261 | || __put_user(req32.nbox, &request->nbox) | |
262 | || __put_user((void __user *)(unsigned long)req32.boxes, | |
263 | &request->boxes)) | |
264 | return -EFAULT; | |
265 | ||
ed8b6704 | 266 | return drm_ioctl(file, DRM_IOCTL_RADEON_CMDBUF, (unsigned long)request); |
9a186645 DA |
267 | } |
268 | ||
269 | typedef struct drm_radeon_getparam32 { | |
270 | int param; | |
271 | u32 value; | |
272 | } drm_radeon_getparam32_t; | |
273 | ||
274 | static int compat_radeon_cp_getparam(struct file *file, unsigned int cmd, | |
275 | unsigned long arg) | |
276 | { | |
277 | drm_radeon_getparam32_t req32; | |
278 | drm_radeon_getparam_t __user *request; | |
279 | ||
b5e89ed5 | 280 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
281 | return -EFAULT; |
282 | ||
283 | request = compat_alloc_user_space(sizeof(*request)); | |
284 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
285 | || __put_user(req32.param, &request->param) | |
286 | || __put_user((void __user *)(unsigned long)req32.value, | |
287 | &request->value)) | |
288 | return -EFAULT; | |
289 | ||
ed8b6704 | 290 | return drm_ioctl(file, DRM_IOCTL_RADEON_GETPARAM, (unsigned long)request); |
9a186645 DA |
291 | } |
292 | ||
293 | typedef struct drm_radeon_mem_alloc32 { | |
294 | int region; | |
295 | int alignment; | |
296 | int size; | |
297 | u32 region_offset; /* offset from start of fb or GART */ | |
298 | } drm_radeon_mem_alloc32_t; | |
299 | ||
300 | static int compat_radeon_mem_alloc(struct file *file, unsigned int cmd, | |
301 | unsigned long arg) | |
302 | { | |
303 | drm_radeon_mem_alloc32_t req32; | |
304 | drm_radeon_mem_alloc_t __user *request; | |
305 | ||
b5e89ed5 | 306 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
307 | return -EFAULT; |
308 | ||
309 | request = compat_alloc_user_space(sizeof(*request)); | |
310 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
311 | || __put_user(req32.region, &request->region) | |
312 | || __put_user(req32.alignment, &request->alignment) | |
313 | || __put_user(req32.size, &request->size) | |
314 | || __put_user((int __user *)(unsigned long)req32.region_offset, | |
315 | &request->region_offset)) | |
316 | return -EFAULT; | |
317 | ||
ed8b6704 | 318 | return drm_ioctl(file, DRM_IOCTL_RADEON_ALLOC, (unsigned long)request); |
9a186645 DA |
319 | } |
320 | ||
321 | typedef struct drm_radeon_irq_emit32 { | |
322 | u32 irq_seq; | |
323 | } drm_radeon_irq_emit32_t; | |
324 | ||
325 | static int compat_radeon_irq_emit(struct file *file, unsigned int cmd, | |
326 | unsigned long arg) | |
327 | { | |
328 | drm_radeon_irq_emit32_t req32; | |
329 | drm_radeon_irq_emit_t __user *request; | |
330 | ||
b5e89ed5 | 331 | if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) |
9a186645 DA |
332 | return -EFAULT; |
333 | ||
334 | request = compat_alloc_user_space(sizeof(*request)); | |
335 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
336 | || __put_user((int __user *)(unsigned long)req32.irq_seq, | |
337 | &request->irq_seq)) | |
338 | return -EFAULT; | |
339 | ||
ed8b6704 | 340 | return drm_ioctl(file, DRM_IOCTL_RADEON_IRQ_EMIT, (unsigned long)request); |
9a186645 DA |
341 | } |
342 | ||
f4d27817 DW |
343 | /* The two 64-bit arches where alignof(u64)==4 in 32-bit code */ |
344 | #if defined (CONFIG_X86_64) || defined(CONFIG_IA64) | |
9b01bd5b DA |
345 | typedef struct drm_radeon_setparam32 { |
346 | int param; | |
347 | u64 value; | |
348 | } __attribute__((packed)) drm_radeon_setparam32_t; | |
349 | ||
350 | static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd, | |
351 | unsigned long arg) | |
352 | { | |
353 | drm_radeon_setparam32_t req32; | |
354 | drm_radeon_setparam_t __user *request; | |
355 | ||
356 | if (copy_from_user(&req32, (void __user *) arg, sizeof(req32))) | |
357 | return -EFAULT; | |
358 | ||
359 | request = compat_alloc_user_space(sizeof(*request)); | |
360 | if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) | |
361 | || __put_user(req32.param, &request->param) | |
362 | || __put_user((void __user *)(unsigned long)req32.value, | |
363 | &request->value)) | |
364 | return -EFAULT; | |
365 | ||
ed8b6704 | 366 | return drm_ioctl(file, DRM_IOCTL_RADEON_SETPARAM, (unsigned long) request); |
9b01bd5b | 367 | } |
f4d27817 DW |
368 | #else |
369 | #define compat_radeon_cp_setparam NULL | |
370 | #endif /* X86_64 || IA64 */ | |
9b01bd5b | 371 | |
9a186645 DA |
372 | drm_ioctl_compat_t *radeon_compat_ioctls[] = { |
373 | [DRM_RADEON_CP_INIT] = compat_radeon_cp_init, | |
374 | [DRM_RADEON_CLEAR] = compat_radeon_cp_clear, | |
375 | [DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple, | |
376 | [DRM_RADEON_TEXTURE] = compat_radeon_cp_texture, | |
377 | [DRM_RADEON_VERTEX2] = compat_radeon_cp_vertex2, | |
378 | [DRM_RADEON_CMDBUF] = compat_radeon_cp_cmdbuf, | |
379 | [DRM_RADEON_GETPARAM] = compat_radeon_cp_getparam, | |
9b01bd5b | 380 | [DRM_RADEON_SETPARAM] = compat_radeon_cp_setparam, |
9a186645 DA |
381 | [DRM_RADEON_ALLOC] = compat_radeon_mem_alloc, |
382 | [DRM_RADEON_IRQ_EMIT] = compat_radeon_irq_emit, | |
383 | }; | |
384 | ||
385 | /** | |
386 | * Called whenever a 32-bit process running under a 64-bit kernel | |
387 | * performs an ioctl on /dev/dri/card<n>. | |
388 | * | |
389 | * \param filp file pointer. | |
390 | * \param cmd command. | |
391 | * \param arg user argument. | |
392 | * \return zero on success or negative number on failure. | |
393 | */ | |
b5e89ed5 | 394 | long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
9a186645 DA |
395 | { |
396 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
397 | drm_ioctl_compat_t *fn = NULL; | |
398 | int ret; | |
399 | ||
400 | if (nr < DRM_COMMAND_BASE) | |
401 | return drm_compat_ioctl(filp, cmd, arg); | |
402 | ||
403 | if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls)) | |
404 | fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE]; | |
405 | ||
9a186645 | 406 | if (fn != NULL) |
b5e89ed5 | 407 | ret = (*fn) (filp, cmd, arg); |
9a186645 | 408 | else |
ed8b6704 | 409 | ret = drm_ioctl(filp, cmd, arg); |
9a186645 DA |
410 | |
411 | return ret; | |
412 | } | |
70ba2a37 DA |
413 | |
414 | long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
415 | { | |
416 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
417 | int ret; | |
418 | ||
419 | if (nr < DRM_COMMAND_BASE) | |
420 | return drm_compat_ioctl(filp, cmd, arg); | |
421 | ||
ed8b6704 | 422 | ret = drm_ioctl(filp, cmd, arg); |
70ba2a37 DA |
423 | |
424 | return ret; | |
425 | } |