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"),
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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
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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 long 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 long 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(struct drm_device *dev, void *data, struct drm_file *file_priv)
77 drm_via_agp_t *agp = data;
79 AgpHeap = via_mmInit(agp->offset, agp->size);
81 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)agp->offset,
82 (unsigned long)agp->size);
87 /* fb memory management */
88 static memHeap_t *FBHeap = NULL;
90 int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
92 drm_via_fb_t *fb = data;
94 FBHeap = via_mmInit(fb.offset, fb.size);
96 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)fb.offset,
97 (unsigned long)fb.size);
102 int via_init_context(struct drm_device *dev, int context)
106 for (i = 0; i < MAX_CONTEXT; i++)
107 if (global_ppriv[i].used &&
108 (global_ppriv[i].context == context))
111 if (i >= MAX_CONTEXT) {
112 for (i = 0; i < MAX_CONTEXT; i++) {
113 if (!global_ppriv[i].used) {
114 global_ppriv[i].context = context;
115 global_ppriv[i].used = 1;
116 global_ppriv[i].sets[0] = via_setInit();
117 global_ppriv[i].sets[1] = via_setInit();
118 DRM_DEBUG("init allocation set, socket=%d,"
119 " context = %d\n", i, context);
124 if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
125 (global_ppriv[i].sets[1] == NULL)) {
133 int via_final_context(struct drm_device *dev, int context)
136 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
138 for (i = 0; i < MAX_CONTEXT; i++)
139 if (global_ppriv[i].used &&
140 (global_ppriv[i].context == context))
143 if (i < MAX_CONTEXT) {
148 DRM_DEBUG("find socket %d, context = %d\n", i, context);
151 set = global_ppriv[i].sets[0];
152 retval = via_setFirst(set, &item);
154 DRM_DEBUG("free video memory 0x%lx\n", item);
155 via_mmFreeMem((PMemBlock) item);
156 retval = via_setNext(set, &item);
161 set = global_ppriv[i].sets[1];
162 retval = via_setFirst(set, &item);
164 DRM_DEBUG("free agp memory 0x%lx\n", item);
165 via_mmFreeMem((PMemBlock) item);
166 retval = via_setNext(set, &item);
169 global_ppriv[i].used = 0;
171 via_release_futex(dev_priv, context);
173 #if defined(__linux__)
174 /* Linux specific until context tracking code gets ported to BSD */
175 /* Last context, perform cleanup */
176 if (dev->ctx_count == 1 && dev->dev_private) {
177 DRM_DEBUG("Last Context\n");
179 drm_irq_uninstall(dev);
181 via_cleanup_futex(dev_priv);
182 via_do_cleanup_map(dev);
189 int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv)
191 drm_via_mem_t *mem = data;
195 if (via_fb_alloc(mem) < 0)
199 if (via_agp_alloc(mem) < 0)
207 static int via_fb_alloc(drm_via_mem_t * mem)
217 fb.context = mem->context;
219 block = via_mmAllocMem(FBHeap, fb.size, 5, 0);
221 fb.offset = block->ofs;
222 fb.free = (unsigned long)block;
223 if (!add_alloc_set(fb.context, VIA_MEM_VIDEO, fb.free)) {
224 DRM_DEBUG("adding to allocation set fails\n");
225 via_mmFreeMem((PMemBlock) fb.free);
235 mem->offset = fb.offset;
236 mem->index = fb.free;
238 DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size,
244 static int via_agp_alloc(drm_via_mem_t * mem)
253 agp.size = mem->size;
254 agp.context = mem->context;
256 block = via_mmAllocMem(AgpHeap, agp.size, 5, 0);
258 agp.offset = block->ofs;
259 agp.free = (unsigned long)block;
260 if (!add_alloc_set(agp.context, VIA_MEM_AGP, agp.free)) {
261 DRM_DEBUG("adding to allocation set fails\n");
262 via_mmFreeMem((PMemBlock) agp.free);
271 mem->offset = agp.offset;
272 mem->index = agp.free;
274 DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size,
275 (unsigned int)agp.offset);
279 int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
281 drm_via_mem_t *mem = data;
286 if (via_fb_free(mem) == 0)
290 if (via_agp_free(mem) == 0)
298 static int via_fb_free(drm_via_mem_t * mem)
307 fb.free = mem->index;
308 fb.context = mem->context;
315 via_mmFreeMem((PMemBlock) fb.free);
317 if (!del_alloc_set(fb.context, VIA_MEM_VIDEO, fb.free)) {
321 DRM_DEBUG("free fb, free = %ld\n", fb.free);
326 static int via_agp_free(drm_via_mem_t * mem)
332 agp.free = mem->index;
333 agp.context = mem->context;
338 via_mmFreeMem((PMemBlock) agp.free);
340 if (!del_alloc_set(agp.context, VIA_MEM_AGP, agp.free)) {
344 DRM_DEBUG("free agp, free = %ld\n", agp.nfree);