2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
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10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
30 #define MAX_CONTEXT 100
35 set_t *sets[2]; /* 0 for frame buffer, 1 for AGP , 2 for System */
38 static via_context_t global_ppriv[MAX_CONTEXT];
40 static int via_agp_alloc(drm_via_mem_t * mem);
41 static int via_agp_free(drm_via_mem_t * mem);
42 static int via_fb_alloc(drm_via_mem_t * mem);
43 static int via_fb_free(drm_via_mem_t * mem);
45 static int add_alloc_set(int context, int type, unsigned int val)
49 for (i = 0; i < MAX_CONTEXT; i++) {
50 if (global_ppriv[i].used && global_ppriv[i].context == context) {
51 retval = via_setAdd(global_ppriv[i].sets[type], val);
59 static int del_alloc_set(int context, int type, unsigned int val)
63 for (i = 0; i < MAX_CONTEXT; i++)
64 if (global_ppriv[i].used && global_ppriv[i].context == context) {
65 retval = via_setDel(global_ppriv[i].sets[type], val);
72 /* agp memory management */
73 static memHeap_t *AgpHeap = NULL;
75 int via_agp_init(DRM_IOCTL_ARGS)
79 DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t *) data, sizeof(agp));
81 AgpHeap = via_mmInit(agp.offset, agp.size);
83 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)agp.offset, (unsigned long)agp.size);
88 /* fb memory management */
89 static memHeap_t *FBHeap = NULL;
91 int via_fb_init(DRM_IOCTL_ARGS)
95 DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t *) data, sizeof(fb));
97 FBHeap = via_mmInit(fb.offset, fb.size);
99 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)fb.offset, (unsigned long)fb.size);
104 int via_init_context(struct drm_device *dev, int context)
108 for (i = 0; i < MAX_CONTEXT; i++)
109 if (global_ppriv[i].used &&
110 (global_ppriv[i].context == context))
113 if (i >= MAX_CONTEXT) {
114 for (i = 0; i < MAX_CONTEXT; i++) {
115 if (!global_ppriv[i].used) {
116 global_ppriv[i].context = context;
117 global_ppriv[i].used = 1;
118 global_ppriv[i].sets[0] = via_setInit();
119 global_ppriv[i].sets[1] = via_setInit();
120 DRM_DEBUG("init allocation set, socket=%d,"
121 " context = %d\n", i, context);
126 if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
127 (global_ppriv[i].sets[1] == NULL)) {
135 int via_final_context(struct drm_device *dev, int context)
138 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
140 for (i = 0; i < MAX_CONTEXT; i++)
141 if (global_ppriv[i].used &&
142 (global_ppriv[i].context == context))
145 if (i < MAX_CONTEXT) {
150 DRM_DEBUG("find socket %d, context = %d\n", i, context);
153 set = global_ppriv[i].sets[0];
154 retval = via_setFirst(set, &item);
156 DRM_DEBUG("free video memory 0x%lx\n", item);
157 via_mmFreeMem((PMemBlock) item);
158 retval = via_setNext(set, &item);
163 set = global_ppriv[i].sets[1];
164 retval = via_setFirst(set, &item);
166 DRM_DEBUG("free agp memory 0x%lx\n", item);
167 via_mmFreeMem((PMemBlock) item);
168 retval = via_setNext(set, &item);
171 global_ppriv[i].used = 0;
173 via_release_futex(dev_priv, context);
176 #if defined(__linux__)
177 /* Linux specific until context tracking code gets ported to BSD */
178 /* Last context, perform cleanup */
179 if (dev->ctx_count == 1 && dev->dev_private) {
180 DRM_DEBUG("Last Context\n");
182 drm_irq_uninstall(dev);
184 via_cleanup_futex(dev_priv);
185 via_do_cleanup_map(dev);
192 int via_mem_alloc(DRM_IOCTL_ARGS)
196 DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *) data, sizeof(mem));
200 if (via_fb_alloc(&mem) < 0)
202 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *) data, mem,
206 if (via_agp_alloc(&mem) < 0)
208 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *) data, mem,
216 static int via_fb_alloc(drm_via_mem_t * mem)
226 fb.context = mem->context;
228 block = via_mmAllocMem(FBHeap, fb.size, 5, 0);
230 fb.offset = block->ofs;
231 fb.free = (unsigned long)block;
232 if (!add_alloc_set(fb.context, VIDEO, fb.free)) {
233 DRM_DEBUG("adding to allocation set fails\n");
234 via_mmFreeMem((PMemBlock) fb.free);
244 mem->offset = fb.offset;
245 mem->index = fb.free;
247 DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size,
253 static int via_agp_alloc(drm_via_mem_t * mem)
262 agp.size = mem->size;
263 agp.context = mem->context;
265 block = via_mmAllocMem(AgpHeap, agp.size, 5, 0);
267 agp.offset = block->ofs;
268 agp.free = (unsigned long)block;
269 if (!add_alloc_set(agp.context, AGP, agp.free)) {
270 DRM_DEBUG("adding to allocation set fails\n");
271 via_mmFreeMem((PMemBlock) agp.free);
280 mem->offset = agp.offset;
281 mem->index = agp.free;
283 DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size,
284 (unsigned int)agp.offset);
288 int via_mem_free(DRM_IOCTL_ARGS)
292 DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *) data, sizeof(mem));
297 if (via_fb_free(&mem) == 0)
301 if (via_agp_free(&mem) == 0)
309 static int via_fb_free(drm_via_mem_t * mem)
318 fb.free = mem->index;
319 fb.context = mem->context;
326 via_mmFreeMem((PMemBlock) fb.free);
328 if (!del_alloc_set(fb.context, VIDEO, fb.free)) {
332 DRM_DEBUG("free fb, free = %ld\n", fb.free);
337 static int via_agp_free(drm_via_mem_t * mem)
343 agp.free = mem->index;
344 agp.context = mem->context;
349 via_mmFreeMem((PMemBlock) agp.free);
351 if (!del_alloc_set(agp.context, AGP, agp.free)) {
355 DRM_DEBUG("free agp, free = %ld\n", agp.free);