Commit | Line | Data |
---|---|---|
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: | |
13 | * | |
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. | |
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 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. | |
25 | * | |
26 | * Authors: | |
27 | * Sung-Ching Lin <sclin@sis.com.tw> | |
28 | * | |
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 | |
40 | #define VIDEO_TYPE 0 | |
41 | #define AGP_TYPE 1 | |
42 | ||
43 | typedef struct { | |
44 | int used; | |
45 | int context; | |
46 | set_t *sets[2]; /* 0 for video, 1 for AGP */ | |
47 | } sis_context_t; | |
48 | ||
49 | static sis_context_t global_ppriv[MAX_CONTEXT]; | |
50 | ||
51 | ||
52 | static int add_alloc_set(int context, int type, unsigned int val) | |
53 | { | |
54 | int i, retval = 0; | |
55 | ||
56 | for (i = 0; i < MAX_CONTEXT; i++) { | |
57 | if (global_ppriv[i].used && global_ppriv[i].context == context) | |
58 | { | |
59 | retval = setAdd(global_ppriv[i].sets[type], val); | |
60 | break; | |
61 | } | |
62 | } | |
63 | return retval; | |
64 | } | |
65 | ||
66 | static int del_alloc_set(int context, int type, unsigned int val) | |
67 | { | |
68 | int i, retval = 0; | |
69 | ||
70 | for (i = 0; i < MAX_CONTEXT; i++) { | |
71 | if (global_ppriv[i].used && global_ppriv[i].context == context) | |
72 | { | |
73 | retval = setDel(global_ppriv[i].sets[type], val); | |
74 | break; | |
75 | } | |
76 | } | |
77 | return retval; | |
78 | } | |
79 | ||
80 | /* fb management via fb device */ | |
81 | #if defined(__linux__) && defined(CONFIG_FB_SIS) | |
82 | ||
83 | static int sis_fb_init( DRM_IOCTL_ARGS ) | |
84 | { | |
85 | return 0; | |
86 | } | |
87 | ||
88 | static int sis_fb_alloc( DRM_IOCTL_ARGS ) | |
89 | { | |
90 | drm_sis_mem_t fb; | |
91 | struct sis_memreq req; | |
92 | drm_sis_mem_t __user *argp = (void __user *)data; | |
93 | int retval = 0; | |
94 | ||
95 | DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb)); | |
96 | ||
97 | req.size = fb.size; | |
98 | sis_malloc(&req); | |
99 | if (req.offset) { | |
100 | /* TODO */ | |
101 | fb.offset = req.offset; | |
102 | fb.free = req.offset; | |
103 | if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) { | |
104 | DRM_DEBUG("adding to allocation set fails\n"); | |
105 | sis_free(req.offset); | |
106 | retval = DRM_ERR(EINVAL); | |
107 | } | |
108 | } else { | |
109 | fb.offset = 0; | |
110 | fb.size = 0; | |
111 | fb.free = 0; | |
112 | } | |
113 | ||
114 | DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb)); | |
115 | ||
116 | DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, req.offset); | |
117 | ||
118 | return retval; | |
119 | } | |
120 | ||
121 | static int sis_fb_free( DRM_IOCTL_ARGS ) | |
122 | { | |
123 | drm_sis_mem_t fb; | |
124 | int retval = 0; | |
125 | ||
126 | DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *)data, sizeof(fb)); | |
127 | ||
128 | if (!fb.free) | |
129 | return DRM_ERR(EINVAL); | |
130 | ||
131 | if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free)) | |
132 | retval = DRM_ERR(EINVAL); | |
133 | sis_free((u32)fb.free); | |
134 | ||
135 | DRM_DEBUG("free fb, offset = %lu\n", fb.free); | |
136 | ||
137 | return retval; | |
138 | } | |
139 | ||
140 | #else | |
141 | ||
142 | /* Called by the X Server to initialize the FB heap. Allocations will fail | |
143 | * unless this is called. Offset is the beginning of the heap from the | |
144 | * framebuffer offset (MaxXFBMem in XFree86). | |
145 | * | |
146 | * Memory layout according to Thomas Winischofer: | |
147 | * |------------------|DDDDDDDDDDDDDDDDDDDDDDDDDDDDD|HHHH|CCCCCCCCCCC| | |
148 | * | |
149 | * X driver/sisfb HW- Command- | |
150 | * framebuffer memory DRI heap Cursor queue | |
151 | */ | |
152 | static int sis_fb_init( DRM_IOCTL_ARGS ) | |
153 | { | |
154 | DRM_DEVICE; | |
155 | drm_sis_private_t *dev_priv = dev->dev_private; | |
156 | drm_sis_fb_t fb; | |
157 | ||
158 | DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t __user *)data, sizeof(fb)); | |
159 | ||
160 | if (dev_priv == NULL) { | |
161 | dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t), | |
162 | DRM_MEM_DRIVER); | |
163 | dev_priv = dev->dev_private; | |
164 | if (dev_priv == NULL) | |
165 | return ENOMEM; | |
166 | } | |
167 | ||
168 | if (dev_priv->FBHeap != NULL) | |
169 | return DRM_ERR(EINVAL); | |
170 | ||
171 | dev_priv->FBHeap = mmInit(fb.offset, fb.size); | |
172 | ||
173 | DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size); | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
178 | static int sis_fb_alloc( DRM_IOCTL_ARGS ) | |
179 | { | |
180 | DRM_DEVICE; | |
181 | drm_sis_private_t *dev_priv = dev->dev_private; | |
182 | drm_sis_mem_t __user *argp = (void __user *)data; | |
183 | drm_sis_mem_t fb; | |
184 | PMemBlock block; | |
185 | int retval = 0; | |
186 | ||
187 | if (dev_priv == NULL || dev_priv->FBHeap == NULL) | |
188 | return DRM_ERR(EINVAL); | |
189 | ||
190 | DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb)); | |
191 | ||
192 | block = mmAllocMem(dev_priv->FBHeap, fb.size, 0, 0); | |
193 | if (block) { | |
194 | /* TODO */ | |
195 | fb.offset = block->ofs; | |
196 | fb.free = (unsigned long)block; | |
197 | if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) { | |
198 | DRM_DEBUG("adding to allocation set fails\n"); | |
199 | mmFreeMem((PMemBlock)fb.free); | |
200 | retval = DRM_ERR(EINVAL); | |
201 | } | |
202 | } else { | |
203 | fb.offset = 0; | |
204 | fb.size = 0; | |
205 | fb.free = 0; | |
206 | } | |
207 | ||
208 | DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb)); | |
209 | ||
210 | DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, fb.offset); | |
211 | ||
212 | return retval; | |
213 | } | |
214 | ||
215 | static int sis_fb_free( DRM_IOCTL_ARGS ) | |
216 | { | |
217 | DRM_DEVICE; | |
218 | drm_sis_private_t *dev_priv = dev->dev_private; | |
219 | drm_sis_mem_t fb; | |
220 | ||
221 | if (dev_priv == NULL || dev_priv->FBHeap == NULL) | |
222 | return DRM_ERR(EINVAL); | |
223 | ||
224 | DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *)data, sizeof(fb)); | |
225 | ||
226 | if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock)fb.free)) | |
227 | return DRM_ERR(EINVAL); | |
228 | ||
229 | if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free)) | |
230 | return DRM_ERR(EINVAL); | |
231 | mmFreeMem((PMemBlock)fb.free); | |
232 | ||
233 | DRM_DEBUG("free fb, free = 0x%lx\n", fb.free); | |
234 | ||
235 | return 0; | |
236 | } | |
237 | ||
238 | #endif | |
239 | ||
240 | /* agp memory management */ | |
241 | ||
242 | static int sis_ioctl_agp_init( DRM_IOCTL_ARGS ) | |
243 | { | |
244 | DRM_DEVICE; | |
245 | drm_sis_private_t *dev_priv = dev->dev_private; | |
246 | drm_sis_agp_t agp; | |
247 | ||
248 | if (dev_priv == NULL) { | |
249 | dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t), | |
250 | DRM_MEM_DRIVER); | |
251 | dev_priv = dev->dev_private; | |
252 | if (dev_priv == NULL) | |
253 | return ENOMEM; | |
254 | } | |
255 | ||
256 | if (dev_priv->AGPHeap != NULL) | |
257 | return DRM_ERR(EINVAL); | |
258 | ||
259 | DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t __user *)data, sizeof(agp)); | |
260 | ||
261 | dev_priv->AGPHeap = mmInit(agp.offset, agp.size); | |
262 | ||
263 | DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size); | |
264 | ||
265 | return 0; | |
266 | } | |
267 | ||
268 | static int sis_ioctl_agp_alloc( DRM_IOCTL_ARGS ) | |
269 | { | |
270 | DRM_DEVICE; | |
271 | drm_sis_private_t *dev_priv = dev->dev_private; | |
272 | drm_sis_mem_t __user *argp = (void __user *)data; | |
273 | drm_sis_mem_t agp; | |
274 | PMemBlock block; | |
275 | int retval = 0; | |
276 | ||
277 | if (dev_priv == NULL || dev_priv->AGPHeap == NULL) | |
278 | return DRM_ERR(EINVAL); | |
279 | ||
280 | DRM_COPY_FROM_USER_IOCTL(agp, argp, sizeof(agp)); | |
281 | ||
282 | block = mmAllocMem(dev_priv->AGPHeap, agp.size, 0, 0); | |
283 | if (block) { | |
284 | /* TODO */ | |
285 | agp.offset = block->ofs; | |
286 | agp.free = (unsigned long)block; | |
287 | if (!add_alloc_set(agp.context, AGP_TYPE, agp.free)) { | |
288 | DRM_DEBUG("adding to allocation set fails\n"); | |
289 | mmFreeMem((PMemBlock)agp.free); | |
290 | retval = -1; | |
291 | } | |
292 | } else { | |
293 | agp.offset = 0; | |
294 | agp.size = 0; | |
295 | agp.free = 0; | |
296 | } | |
297 | ||
298 | DRM_COPY_TO_USER_IOCTL(argp, agp, sizeof(agp)); | |
299 | ||
300 | DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset); | |
301 | ||
302 | return retval; | |
303 | } | |
304 | ||
305 | static int sis_ioctl_agp_free( DRM_IOCTL_ARGS ) | |
306 | { | |
307 | DRM_DEVICE; | |
308 | drm_sis_private_t *dev_priv = dev->dev_private; | |
309 | drm_sis_mem_t agp; | |
310 | ||
311 | if (dev_priv == NULL || dev_priv->AGPHeap == NULL) | |
312 | return DRM_ERR(EINVAL); | |
313 | ||
314 | DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t __user *)data, sizeof(agp)); | |
315 | ||
316 | if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock)agp.free)) | |
317 | return DRM_ERR(EINVAL); | |
318 | ||
319 | mmFreeMem((PMemBlock)agp.free); | |
320 | if (!del_alloc_set(agp.context, AGP_TYPE, agp.free)) | |
321 | return DRM_ERR(EINVAL); | |
322 | ||
323 | DRM_DEBUG("free agp, free = 0x%lx\n", agp.free); | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | int sis_init_context(struct drm_device *dev, int context) | |
329 | { | |
330 | int i; | |
331 | ||
332 | for (i = 0; i < MAX_CONTEXT ; i++) { | |
333 | if (global_ppriv[i].used && | |
334 | (global_ppriv[i].context == context)) | |
335 | break; | |
336 | } | |
337 | ||
338 | if (i >= MAX_CONTEXT) { | |
339 | for (i = 0; i < MAX_CONTEXT ; i++) { | |
340 | if (!global_ppriv[i].used) { | |
341 | global_ppriv[i].context = context; | |
342 | global_ppriv[i].used = 1; | |
343 | global_ppriv[i].sets[0] = setInit(); | |
344 | global_ppriv[i].sets[1] = setInit(); | |
345 | DRM_DEBUG("init allocation set, socket=%d, " | |
346 | "context = %d\n", i, context); | |
347 | break; | |
348 | } | |
349 | } | |
350 | if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) || | |
351 | (global_ppriv[i].sets[1] == NULL)) | |
352 | { | |
353 | return 0; | |
354 | } | |
355 | } | |
356 | ||
357 | return 1; | |
358 | } | |
359 | ||
360 | int sis_final_context(struct drm_device *dev, int context) | |
361 | { | |
362 | int i; | |
363 | ||
364 | for (i=0; i<MAX_CONTEXT; i++) { | |
365 | if (global_ppriv[i].used && | |
366 | (global_ppriv[i].context == context)) | |
367 | break; | |
368 | } | |
369 | ||
370 | if (i < MAX_CONTEXT) { | |
371 | set_t *set; | |
372 | unsigned int item; | |
373 | int retval; | |
374 | ||
375 | DRM_DEBUG("find socket %d, context = %d\n", i, context); | |
376 | ||
377 | /* Video Memory */ | |
378 | set = global_ppriv[i].sets[0]; | |
379 | retval = setFirst(set, &item); | |
380 | while (retval) { | |
381 | DRM_DEBUG("free video memory 0x%x\n", item); | |
382 | #if defined(__linux__) && defined(CONFIG_FB_SIS) | |
383 | sis_free(item); | |
384 | #else | |
385 | mmFreeMem((PMemBlock)item); | |
386 | #endif | |
387 | retval = setNext(set, &item); | |
388 | } | |
389 | setDestroy(set); | |
390 | ||
391 | /* AGP Memory */ | |
392 | set = global_ppriv[i].sets[1]; | |
393 | retval = setFirst(set, &item); | |
394 | while (retval) { | |
395 | DRM_DEBUG("free agp memory 0x%x\n", item); | |
396 | mmFreeMem((PMemBlock)item); | |
397 | retval = setNext(set, &item); | |
398 | } | |
399 | setDestroy(set); | |
400 | ||
401 | global_ppriv[i].used = 0; | |
402 | } | |
403 | ||
404 | return 1; | |
405 | } | |
406 | ||
407 | drm_ioctl_desc_t sis_ioctls[] = { | |
408 | [DRM_IOCTL_NR(DRM_SIS_FB_ALLOC)] = { sis_fb_alloc, 1, 0 }, | |
409 | [DRM_IOCTL_NR(DRM_SIS_FB_FREE)] = { sis_fb_free, 1, 0 }, | |
410 | [DRM_IOCTL_NR(DRM_SIS_AGP_INIT)] = { sis_ioctl_agp_init, 1, 1 }, | |
411 | [DRM_IOCTL_NR(DRM_SIS_AGP_ALLOC)] = { sis_ioctl_agp_alloc, 1, 0 }, | |
412 | [DRM_IOCTL_NR(DRM_SIS_AGP_FREE)] = { sis_ioctl_agp_free, 1, 0 }, | |
413 | [DRM_IOCTL_NR(DRM_SIS_FB_INIT)] = { sis_fb_init, 1, 1 } | |
414 | }; | |
415 | ||
416 | int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls); | |
417 |