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1da177e4 LT |
1 | /* sis_mm.c -- Private header for Direct Rendering Manager -*- linux-c -*- |
2 | * Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw | |
3 | * | |
4 | * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a | |
8 | * copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation | |
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
11 | * and/or sell copies of the Software, and to permit persons to whom the | |
12 | * Software is furnished to do so, subject to the following conditions: | |
b5e89ed5 | 13 | * |
1da177e4 LT |
14 | * The above copyright notice and this permission notice (including the next |
15 | * paragraph) shall be included in all copies or substantial portions of the | |
16 | * Software. | |
b5e89ed5 | 17 | * |
1da177e4 LT |
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 NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
22 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
23 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
24 | * DEALINGS IN THE SOFTWARE. | |
b5e89ed5 | 25 | * |
1da177e4 LT |
26 | * Authors: |
27 | * Sung-Ching Lin <sclin@sis.com.tw> | |
b5e89ed5 | 28 | * |
1da177e4 LT |
29 | */ |
30 | ||
31 | #include "drmP.h" | |
32 | #include "sis_drm.h" | |
33 | #include "sis_drv.h" | |
34 | #include "sis_ds.h" | |
35 | #if defined(__linux__) && defined(CONFIG_FB_SIS) | |
36 | #include <video/sisfb.h> | |
37 | #endif | |
38 | ||
39 | #define MAX_CONTEXT 100 | |
b5e89ed5 | 40 | #define VIDEO_TYPE 0 |
1da177e4 LT |
41 | #define AGP_TYPE 1 |
42 | ||
43 | typedef struct { | |
44 | int used; | |
45 | int context; | |
b5e89ed5 | 46 | set_t *sets[2]; /* 0 for video, 1 for AGP */ |
1da177e4 LT |
47 | } sis_context_t; |
48 | ||
49 | static sis_context_t global_ppriv[MAX_CONTEXT]; | |
50 | ||
1da177e4 LT |
51 | static int add_alloc_set(int context, int type, unsigned int val) |
52 | { | |
53 | int i, retval = 0; | |
b5e89ed5 | 54 | |
1da177e4 | 55 | for (i = 0; i < MAX_CONTEXT; i++) { |
b5e89ed5 | 56 | if (global_ppriv[i].used && global_ppriv[i].context == context) { |
1da177e4 LT |
57 | retval = setAdd(global_ppriv[i].sets[type], val); |
58 | break; | |
59 | } | |
60 | } | |
61 | return retval; | |
62 | } | |
63 | ||
64 | static int del_alloc_set(int context, int type, unsigned int val) | |
b5e89ed5 | 65 | { |
1da177e4 LT |
66 | int i, retval = 0; |
67 | ||
68 | for (i = 0; i < MAX_CONTEXT; i++) { | |
b5e89ed5 | 69 | if (global_ppriv[i].used && global_ppriv[i].context == context) { |
1da177e4 LT |
70 | retval = setDel(global_ppriv[i].sets[type], val); |
71 | break; | |
72 | } | |
73 | } | |
74 | return retval; | |
75 | } | |
76 | ||
b5e89ed5 | 77 | /* fb management via fb device */ |
1da177e4 LT |
78 | #if defined(__linux__) && defined(CONFIG_FB_SIS) |
79 | ||
b5e89ed5 | 80 | static int sis_fb_init(DRM_IOCTL_ARGS) |
1da177e4 LT |
81 | { |
82 | return 0; | |
83 | } | |
84 | ||
b5e89ed5 | 85 | static int sis_fb_alloc(DRM_IOCTL_ARGS) |
1da177e4 LT |
86 | { |
87 | drm_sis_mem_t fb; | |
88 | struct sis_memreq req; | |
89 | drm_sis_mem_t __user *argp = (void __user *)data; | |
90 | int retval = 0; | |
91 | ||
92 | DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb)); | |
93 | ||
94 | req.size = fb.size; | |
95 | sis_malloc(&req); | |
96 | if (req.offset) { | |
97 | /* TODO */ | |
98 | fb.offset = req.offset; | |
99 | fb.free = req.offset; | |
100 | if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) { | |
101 | DRM_DEBUG("adding to allocation set fails\n"); | |
102 | sis_free(req.offset); | |
103 | retval = DRM_ERR(EINVAL); | |
104 | } | |
b5e89ed5 | 105 | } else { |
1da177e4 LT |
106 | fb.offset = 0; |
107 | fb.size = 0; | |
108 | fb.free = 0; | |
109 | } | |
110 | ||
111 | DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb)); | |
112 | ||
113 | DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, req.offset); | |
114 | ||
115 | return retval; | |
116 | } | |
117 | ||
b5e89ed5 | 118 | static int sis_fb_free(DRM_IOCTL_ARGS) |
1da177e4 LT |
119 | { |
120 | drm_sis_mem_t fb; | |
121 | int retval = 0; | |
122 | ||
b5e89ed5 | 123 | DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *) data, sizeof(fb)); |
1da177e4 LT |
124 | |
125 | if (!fb.free) | |
126 | return DRM_ERR(EINVAL); | |
127 | ||
128 | if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free)) | |
129 | retval = DRM_ERR(EINVAL); | |
b5e89ed5 | 130 | sis_free((u32) fb.free); |
1da177e4 LT |
131 | |
132 | DRM_DEBUG("free fb, offset = %lu\n", fb.free); | |
133 | ||
134 | return retval; | |
135 | } | |
136 | ||
137 | #else | |
138 | ||
139 | /* Called by the X Server to initialize the FB heap. Allocations will fail | |
140 | * unless this is called. Offset is the beginning of the heap from the | |
141 | * framebuffer offset (MaxXFBMem in XFree86). | |
142 | * | |
143 | * Memory layout according to Thomas Winischofer: | |
144 | * |------------------|DDDDDDDDDDDDDDDDDDDDDDDDDDDDD|HHHH|CCCCCCCCCCC| | |
145 | * | |
146 | * X driver/sisfb HW- Command- | |
147 | * framebuffer memory DRI heap Cursor queue | |
148 | */ | |
b5e89ed5 | 149 | static int sis_fb_init(DRM_IOCTL_ARGS) |
1da177e4 LT |
150 | { |
151 | DRM_DEVICE; | |
152 | drm_sis_private_t *dev_priv = dev->dev_private; | |
153 | drm_sis_fb_t fb; | |
154 | ||
b5e89ed5 | 155 | DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t __user *) data, sizeof(fb)); |
1da177e4 LT |
156 | |
157 | if (dev_priv == NULL) { | |
158 | dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t), | |
b5e89ed5 | 159 | DRM_MEM_DRIVER); |
1da177e4 LT |
160 | dev_priv = dev->dev_private; |
161 | if (dev_priv == NULL) | |
162 | return ENOMEM; | |
163 | } | |
164 | ||
165 | if (dev_priv->FBHeap != NULL) | |
166 | return DRM_ERR(EINVAL); | |
167 | ||
168 | dev_priv->FBHeap = mmInit(fb.offset, fb.size); | |
169 | ||
170 | DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size); | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
b5e89ed5 | 175 | static int sis_fb_alloc(DRM_IOCTL_ARGS) |
1da177e4 LT |
176 | { |
177 | DRM_DEVICE; | |
178 | drm_sis_private_t *dev_priv = dev->dev_private; | |
179 | drm_sis_mem_t __user *argp = (void __user *)data; | |
180 | drm_sis_mem_t fb; | |
181 | PMemBlock block; | |
182 | int retval = 0; | |
183 | ||
184 | if (dev_priv == NULL || dev_priv->FBHeap == NULL) | |
185 | return DRM_ERR(EINVAL); | |
b5e89ed5 | 186 | |
1da177e4 | 187 | DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb)); |
b5e89ed5 | 188 | |
1da177e4 LT |
189 | block = mmAllocMem(dev_priv->FBHeap, fb.size, 0, 0); |
190 | if (block) { | |
191 | /* TODO */ | |
192 | fb.offset = block->ofs; | |
193 | fb.free = (unsigned long)block; | |
194 | if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) { | |
195 | DRM_DEBUG("adding to allocation set fails\n"); | |
b5e89ed5 | 196 | mmFreeMem((PMemBlock) fb.free); |
1da177e4 LT |
197 | retval = DRM_ERR(EINVAL); |
198 | } | |
199 | } else { | |
200 | fb.offset = 0; | |
201 | fb.size = 0; | |
202 | fb.free = 0; | |
203 | } | |
204 | ||
205 | DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb)); | |
206 | ||
207 | DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, fb.offset); | |
208 | ||
209 | return retval; | |
210 | } | |
211 | ||
b5e89ed5 | 212 | static int sis_fb_free(DRM_IOCTL_ARGS) |
1da177e4 LT |
213 | { |
214 | DRM_DEVICE; | |
215 | drm_sis_private_t *dev_priv = dev->dev_private; | |
216 | drm_sis_mem_t fb; | |
217 | ||
218 | if (dev_priv == NULL || dev_priv->FBHeap == NULL) | |
219 | return DRM_ERR(EINVAL); | |
220 | ||
b5e89ed5 | 221 | DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *) data, sizeof(fb)); |
1da177e4 | 222 | |
b5e89ed5 | 223 | if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock) fb.free)) |
1da177e4 LT |
224 | return DRM_ERR(EINVAL); |
225 | ||
226 | if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free)) | |
227 | return DRM_ERR(EINVAL); | |
b5e89ed5 | 228 | mmFreeMem((PMemBlock) fb.free); |
1da177e4 LT |
229 | |
230 | DRM_DEBUG("free fb, free = 0x%lx\n", fb.free); | |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
235 | #endif | |
236 | ||
b5e89ed5 | 237 | /* agp memory management */ |
1da177e4 | 238 | |
b5e89ed5 | 239 | static int sis_ioctl_agp_init(DRM_IOCTL_ARGS) |
1da177e4 LT |
240 | { |
241 | DRM_DEVICE; | |
242 | drm_sis_private_t *dev_priv = dev->dev_private; | |
243 | drm_sis_agp_t agp; | |
244 | ||
245 | if (dev_priv == NULL) { | |
246 | dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t), | |
b5e89ed5 | 247 | DRM_MEM_DRIVER); |
1da177e4 LT |
248 | dev_priv = dev->dev_private; |
249 | if (dev_priv == NULL) | |
250 | return ENOMEM; | |
251 | } | |
252 | ||
253 | if (dev_priv->AGPHeap != NULL) | |
254 | return DRM_ERR(EINVAL); | |
255 | ||
b5e89ed5 DA |
256 | DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t __user *) data, |
257 | sizeof(agp)); | |
1da177e4 LT |
258 | |
259 | dev_priv->AGPHeap = mmInit(agp.offset, agp.size); | |
260 | ||
261 | DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size); | |
b5e89ed5 | 262 | |
1da177e4 LT |
263 | return 0; |
264 | } | |
265 | ||
b5e89ed5 | 266 | static int sis_ioctl_agp_alloc(DRM_IOCTL_ARGS) |
1da177e4 LT |
267 | { |
268 | DRM_DEVICE; | |
269 | drm_sis_private_t *dev_priv = dev->dev_private; | |
270 | drm_sis_mem_t __user *argp = (void __user *)data; | |
271 | drm_sis_mem_t agp; | |
272 | PMemBlock block; | |
273 | int retval = 0; | |
b5e89ed5 | 274 | |
1da177e4 LT |
275 | if (dev_priv == NULL || dev_priv->AGPHeap == NULL) |
276 | return DRM_ERR(EINVAL); | |
b5e89ed5 | 277 | |
1da177e4 | 278 | DRM_COPY_FROM_USER_IOCTL(agp, argp, sizeof(agp)); |
b5e89ed5 | 279 | |
1da177e4 LT |
280 | block = mmAllocMem(dev_priv->AGPHeap, agp.size, 0, 0); |
281 | if (block) { | |
282 | /* TODO */ | |
283 | agp.offset = block->ofs; | |
284 | agp.free = (unsigned long)block; | |
285 | if (!add_alloc_set(agp.context, AGP_TYPE, agp.free)) { | |
286 | DRM_DEBUG("adding to allocation set fails\n"); | |
b5e89ed5 | 287 | mmFreeMem((PMemBlock) agp.free); |
1da177e4 LT |
288 | retval = -1; |
289 | } | |
b5e89ed5 | 290 | } else { |
1da177e4 LT |
291 | agp.offset = 0; |
292 | agp.size = 0; | |
293 | agp.free = 0; | |
294 | } | |
295 | ||
296 | DRM_COPY_TO_USER_IOCTL(argp, agp, sizeof(agp)); | |
297 | ||
298 | DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset); | |
299 | ||
300 | return retval; | |
301 | } | |
302 | ||
b5e89ed5 | 303 | static int sis_ioctl_agp_free(DRM_IOCTL_ARGS) |
1da177e4 LT |
304 | { |
305 | DRM_DEVICE; | |
306 | drm_sis_private_t *dev_priv = dev->dev_private; | |
307 | drm_sis_mem_t agp; | |
308 | ||
309 | if (dev_priv == NULL || dev_priv->AGPHeap == NULL) | |
310 | return DRM_ERR(EINVAL); | |
311 | ||
b5e89ed5 DA |
312 | DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t __user *) data, |
313 | sizeof(agp)); | |
1da177e4 | 314 | |
b5e89ed5 | 315 | if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock) agp.free)) |
1da177e4 LT |
316 | return DRM_ERR(EINVAL); |
317 | ||
b5e89ed5 | 318 | mmFreeMem((PMemBlock) agp.free); |
1da177e4 LT |
319 | if (!del_alloc_set(agp.context, AGP_TYPE, agp.free)) |
320 | return DRM_ERR(EINVAL); | |
321 | ||
322 | DRM_DEBUG("free agp, free = 0x%lx\n", agp.free); | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | int sis_init_context(struct drm_device *dev, int context) | |
328 | { | |
329 | int i; | |
330 | ||
b5e89ed5 | 331 | for (i = 0; i < MAX_CONTEXT; i++) { |
1da177e4 LT |
332 | if (global_ppriv[i].used && |
333 | (global_ppriv[i].context == context)) | |
334 | break; | |
335 | } | |
336 | ||
337 | if (i >= MAX_CONTEXT) { | |
b5e89ed5 | 338 | for (i = 0; i < MAX_CONTEXT; i++) { |
1da177e4 LT |
339 | if (!global_ppriv[i].used) { |
340 | global_ppriv[i].context = context; | |
341 | global_ppriv[i].used = 1; | |
342 | global_ppriv[i].sets[0] = setInit(); | |
343 | global_ppriv[i].sets[1] = setInit(); | |
344 | DRM_DEBUG("init allocation set, socket=%d, " | |
b5e89ed5 | 345 | "context = %d\n", i, context); |
1da177e4 LT |
346 | break; |
347 | } | |
348 | } | |
349 | if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) || | |
b5e89ed5 | 350 | (global_ppriv[i].sets[1] == NULL)) { |
1da177e4 LT |
351 | return 0; |
352 | } | |
353 | } | |
b5e89ed5 | 354 | |
1da177e4 LT |
355 | return 1; |
356 | } | |
357 | ||
358 | int sis_final_context(struct drm_device *dev, int context) | |
359 | { | |
360 | int i; | |
361 | ||
b5e89ed5 | 362 | for (i = 0; i < MAX_CONTEXT; i++) { |
1da177e4 LT |
363 | if (global_ppriv[i].used && |
364 | (global_ppriv[i].context == context)) | |
365 | break; | |
366 | } | |
367 | ||
368 | if (i < MAX_CONTEXT) { | |
369 | set_t *set; | |
370 | unsigned int item; | |
371 | int retval; | |
372 | ||
373 | DRM_DEBUG("find socket %d, context = %d\n", i, context); | |
374 | ||
375 | /* Video Memory */ | |
376 | set = global_ppriv[i].sets[0]; | |
377 | retval = setFirst(set, &item); | |
378 | while (retval) { | |
379 | DRM_DEBUG("free video memory 0x%x\n", item); | |
380 | #if defined(__linux__) && defined(CONFIG_FB_SIS) | |
381 | sis_free(item); | |
382 | #else | |
b5e89ed5 | 383 | mmFreeMem((PMemBlock) item); |
1da177e4 LT |
384 | #endif |
385 | retval = setNext(set, &item); | |
386 | } | |
387 | setDestroy(set); | |
388 | ||
389 | /* AGP Memory */ | |
390 | set = global_ppriv[i].sets[1]; | |
391 | retval = setFirst(set, &item); | |
392 | while (retval) { | |
393 | DRM_DEBUG("free agp memory 0x%x\n", item); | |
b5e89ed5 | 394 | mmFreeMem((PMemBlock) item); |
1da177e4 LT |
395 | retval = setNext(set, &item); |
396 | } | |
397 | setDestroy(set); | |
398 | ||
b5e89ed5 DA |
399 | global_ppriv[i].used = 0; |
400 | } | |
401 | ||
1da177e4 LT |
402 | return 1; |
403 | } | |
404 | ||
405 | drm_ioctl_desc_t sis_ioctls[] = { | |
b5e89ed5 DA |
406 | [DRM_IOCTL_NR(DRM_SIS_FB_ALLOC)] = {sis_fb_alloc, 1, 0} |
407 | , | |
408 | [DRM_IOCTL_NR(DRM_SIS_FB_FREE)] = {sis_fb_free, 1, 0} | |
409 | , | |
410 | [DRM_IOCTL_NR(DRM_SIS_AGP_INIT)] = {sis_ioctl_agp_init, 1, 1} | |
411 | , | |
412 | [DRM_IOCTL_NR(DRM_SIS_AGP_ALLOC)] = {sis_ioctl_agp_alloc, 1, 0} | |
413 | , | |
414 | [DRM_IOCTL_NR(DRM_SIS_AGP_FREE)] = {sis_ioctl_agp_free, 1, 0} | |
415 | , | |
416 | [DRM_IOCTL_NR(DRM_SIS_FB_INIT)] = {sis_fb_init, 1, 1} | |
1da177e4 LT |
417 | }; |
418 | ||
419 | int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls); |