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
4 * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
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:
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
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.
27 * Sung-Ching Lin <sclin@sis.com.tw>
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #if defined(__linux__) && defined(CONFIG_FB_SIS)
35 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
36 #include <video/sisfb.h>
38 #include <linux/sisfb.h>
41 #include "dev/drm/drmP.h"
42 #include "dev/drm/sis_drm.h"
43 #include "dev/drm/sis_drv.h"
44 #include "dev/drm/sis_ds.h"
46 #define MAX_CONTEXT 100
53 set_t *sets[2]; /* 0 for video, 1 for AGP */
56 static sis_context_t global_ppriv[MAX_CONTEXT];
58 static int add_alloc_set(int context, int type, unsigned int val)
62 for (i = 0; i < MAX_CONTEXT; i++) {
63 if (global_ppriv[i].used && global_ppriv[i].context == context) {
64 retval = setAdd(global_ppriv[i].sets[type], val);
71 static int del_alloc_set(int context, int type, unsigned int val)
75 for (i = 0; i < MAX_CONTEXT; i++) {
76 if (global_ppriv[i].used && global_ppriv[i].context == context) {
77 retval = setDel(global_ppriv[i].sets[type], val);
84 /* fb management via fb device */
85 #if defined(__linux__) && defined(CONFIG_FB_SIS)
87 static int sis_fb_init(DRM_IOCTL_ARGS)
92 static int sis_fb_alloc(DRM_IOCTL_ARGS)
95 struct sis_memreq req;
96 drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *)data;
99 DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb));
105 fb.offset = req.offset;
106 fb.free = req.offset;
107 if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
108 DRM_DEBUG("adding to allocation set fails\n");
109 sis_free(req.offset);
110 retval = DRM_ERR(EINVAL);
118 DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb));
120 DRM_DEBUG("alloc fb, size = %d, offset = %ld\n", fb.size, req.offset);
125 static int sis_fb_free(DRM_IOCTL_ARGS)
130 DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *) data, sizeof(fb));
133 return DRM_ERR(EINVAL);
135 if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
136 retval = DRM_ERR(EINVAL);
139 DRM_DEBUG("free fb, offset = 0x%lx\n", fb.free);
146 /* Called by the X Server to initialize the FB heap. Allocations will fail
147 * unless this is called. Offset is the beginning of the heap from the
148 * framebuffer offset (MaxXFBMem in XFree86).
150 * Memory layout according to Thomas Winischofer:
151 * |------------------|DDDDDDDDDDDDDDDDDDDDDDDDDDDDD|HHHH|CCCCCCCCCCC|
153 * X driver/sisfb HW- Command-
154 * framebuffer memory DRI heap Cursor queue
156 static int sis_fb_init(DRM_IOCTL_ARGS)
159 drm_sis_private_t *dev_priv = dev->dev_private;
162 DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t __user *) data, sizeof(fb));
164 if (dev_priv == NULL) {
165 dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t),
167 dev_priv = dev->dev_private;
168 if (dev_priv == NULL)
172 if (dev_priv->FBHeap != NULL)
173 return DRM_ERR(EINVAL);
175 dev_priv->FBHeap = mmInit(fb.offset, fb.size);
177 DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
182 static int sis_fb_alloc(DRM_IOCTL_ARGS)
185 drm_sis_private_t *dev_priv = dev->dev_private;
186 drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *)data;
191 if (dev_priv == NULL || dev_priv->FBHeap == NULL)
192 return DRM_ERR(EINVAL);
194 DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb));
196 block = mmAllocMem(dev_priv->FBHeap, fb.size, 0, 0);
199 fb.offset = block->ofs;
200 fb.free = (unsigned long)block;
201 if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
202 DRM_DEBUG("adding to allocation set fails\n");
203 mmFreeMem((PMemBlock) fb.free);
204 retval = DRM_ERR(EINVAL);
212 DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb));
214 DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, fb.offset);
219 static int sis_fb_free(DRM_IOCTL_ARGS)
222 drm_sis_private_t *dev_priv = dev->dev_private;
225 if (dev_priv == NULL || dev_priv->FBHeap == NULL)
226 return DRM_ERR(EINVAL);
228 DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *) data, sizeof(fb));
230 if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock) fb.free))
231 return DRM_ERR(EINVAL);
233 if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
234 return DRM_ERR(EINVAL);
235 mmFreeMem((PMemBlock) fb.free);
237 DRM_DEBUG("free fb, free = 0x%lx\n", fb.free);
244 /* agp memory management */
246 static int sis_ioctl_agp_init(DRM_IOCTL_ARGS)
249 drm_sis_private_t *dev_priv = dev->dev_private;
252 if (dev_priv == NULL) {
253 dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t),
255 dev_priv = dev->dev_private;
256 if (dev_priv == NULL)
260 if (dev_priv->AGPHeap != NULL)
261 return DRM_ERR(EINVAL);
263 DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t __user *) data,
266 dev_priv->AGPHeap = mmInit(agp.offset, agp.size);
268 DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
273 static int sis_ioctl_agp_alloc(DRM_IOCTL_ARGS)
276 drm_sis_private_t *dev_priv = dev->dev_private;
277 drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *)data;
282 if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
283 return DRM_ERR(EINVAL);
285 DRM_COPY_FROM_USER_IOCTL(agp, argp, sizeof(agp));
287 block = mmAllocMem(dev_priv->AGPHeap, agp.size, 0, 0);
290 agp.offset = block->ofs;
291 agp.free = (unsigned long)block;
292 if (!add_alloc_set(agp.context, AGP_TYPE, agp.free)) {
293 DRM_DEBUG("adding to allocation set fails\n");
294 mmFreeMem((PMemBlock) agp.free);
303 DRM_COPY_TO_USER_IOCTL(argp, agp, sizeof(agp));
305 DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset);
310 static int sis_ioctl_agp_free(DRM_IOCTL_ARGS)
313 drm_sis_private_t *dev_priv = dev->dev_private;
316 if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
317 return DRM_ERR(EINVAL);
319 DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t __user *) data,
322 if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock) agp.free))
323 return DRM_ERR(EINVAL);
325 mmFreeMem((PMemBlock) agp.free);
326 if (!del_alloc_set(agp.context, AGP_TYPE, agp.free))
327 return DRM_ERR(EINVAL);
329 DRM_DEBUG("free agp, free = 0x%lx\n", agp.free);
334 int sis_init_context(struct drm_device *dev, int context)
338 for (i = 0; i < MAX_CONTEXT; i++) {
339 if (global_ppriv[i].used &&
340 (global_ppriv[i].context == context))
344 if (i >= MAX_CONTEXT) {
345 for (i = 0; i < MAX_CONTEXT; i++) {
346 if (!global_ppriv[i].used) {
347 global_ppriv[i].context = context;
348 global_ppriv[i].used = 1;
349 global_ppriv[i].sets[0] = setInit();
350 global_ppriv[i].sets[1] = setInit();
351 DRM_DEBUG("init allocation set, socket=%d, "
352 "context = %d\n", i, context);
356 if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
357 (global_ppriv[i].sets[1] == NULL)) {
365 int sis_final_context(struct drm_device *dev, int context)
369 for (i = 0; i < MAX_CONTEXT; i++) {
370 if (global_ppriv[i].used &&
371 (global_ppriv[i].context == context))
375 if (i < MAX_CONTEXT) {
380 DRM_DEBUG("find socket %d, context = %d\n", i, context);
383 set = global_ppriv[i].sets[0];
384 retval = setFirst(set, &item);
386 DRM_DEBUG("free video memory 0x%lx\n", item);
387 #if defined(__linux__) && defined(CONFIG_FB_SIS)
390 mmFreeMem((PMemBlock) item);
392 retval = setNext(set, &item);
397 set = global_ppriv[i].sets[1];
398 retval = setFirst(set, &item);
400 DRM_DEBUG("free agp memory 0x%lx\n", item);
401 mmFreeMem((PMemBlock) item);
402 retval = setNext(set, &item);
406 global_ppriv[i].used = 0;
412 drm_ioctl_desc_t sis_ioctls[] = {
413 [DRM_IOCTL_NR(DRM_SIS_FB_ALLOC)] = {sis_fb_alloc, DRM_AUTH},
414 [DRM_IOCTL_NR(DRM_SIS_FB_FREE)] = {sis_fb_free, DRM_AUTH},
415 [DRM_IOCTL_NR(DRM_SIS_AGP_INIT)] = {sis_ioctl_agp_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
416 [DRM_IOCTL_NR(DRM_SIS_AGP_ALLOC)] = {sis_ioctl_agp_alloc, DRM_AUTH},
417 [DRM_IOCTL_NR(DRM_SIS_AGP_FREE)] = {sis_ioctl_agp_free, DRM_AUTH},
418 [DRM_IOCTL_NR(DRM_SIS_FB_INIT)] = {sis_fb_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}
421 int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls);