1 // SPDX-License-Identifier: GPL-2.0-or-later
21 		mutex_lock(&alloc->memory_mutex);  in snd_gf1_mem_lock()
23 		mutex_unlock(&alloc->memory_mutex);  in snd_gf1_mem_lock()
28 snd_gf1_mem_xalloc(struct snd_gf1_mem *alloc, struct snd_gf1_mem_block *block,  in snd_gf1_mem_xalloc()  argument
36 	*nblock = *block;  in snd_gf1_mem_xalloc()
37 	nblock->name = kstrdup(name, GFP_KERNEL);  in snd_gf1_mem_xalloc()
38 	if (!nblock->name) {  in snd_gf1_mem_xalloc()
43 	pblock = alloc->first;  in snd_gf1_mem_xalloc()
45 		if (pblock->ptr > nblock->ptr) {  in snd_gf1_mem_xalloc()
46 			nblock->prev = pblock->prev;  in snd_gf1_mem_xalloc()
47 			nblock->next = pblock;  in snd_gf1_mem_xalloc()
48 			pblock->prev = nblock;  in snd_gf1_mem_xalloc()
49 			if (pblock == alloc->first)  in snd_gf1_mem_xalloc()
50 				alloc->first = nblock;  in snd_gf1_mem_xalloc()
52 				nblock->prev->next = nblock;  in snd_gf1_mem_xalloc()
53 			mutex_unlock(&alloc->memory_mutex);  in snd_gf1_mem_xalloc()
56 		pblock = pblock->next;  in snd_gf1_mem_xalloc()
58 	nblock->next = NULL;  in snd_gf1_mem_xalloc()
59 	if (alloc->last == NULL) {  in snd_gf1_mem_xalloc()
60 		nblock->prev = NULL;  in snd_gf1_mem_xalloc()
61 		alloc->first = alloc->last = nblock;  in snd_gf1_mem_xalloc()
63 		nblock->prev = alloc->last;  in snd_gf1_mem_xalloc()
64 		alloc->last->next = nblock;  in snd_gf1_mem_xalloc()
65 		alloc->last = nblock;  in snd_gf1_mem_xalloc()
70 int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block)  in snd_gf1_mem_xfree()  argument
72 	if (block->share) {	/* ok.. shared block */  in snd_gf1_mem_xfree()
73 		block->share--;  in snd_gf1_mem_xfree()
74 		mutex_unlock(&alloc->memory_mutex);  in snd_gf1_mem_xfree()
77 	if (alloc->first == block) {  in snd_gf1_mem_xfree()
78 		alloc->first = block->next;  in snd_gf1_mem_xfree()
79 		if (block->next)  in snd_gf1_mem_xfree()
80 			block->next->prev = NULL;  in snd_gf1_mem_xfree()
82 		block->prev->next = block->next;  in snd_gf1_mem_xfree()
83 		if (block->next)  in snd_gf1_mem_xfree()
84 			block->next->prev = block->prev;  in snd_gf1_mem_xfree()
86 	if (alloc->last == block) {  in snd_gf1_mem_xfree()
87 		alloc->last = block->prev;  in snd_gf1_mem_xfree()
88 		if (block->prev)  in snd_gf1_mem_xfree()
89 			block->prev->next = NULL;  in snd_gf1_mem_xfree()
91 		block->next->prev = block->prev;  in snd_gf1_mem_xfree()
92 		if (block->prev)  in snd_gf1_mem_xfree()
93 			block->prev->next = block->next;  in snd_gf1_mem_xfree()
95 	kfree(block->name);  in snd_gf1_mem_xfree()
96 	kfree(block);  in snd_gf1_mem_xfree()
103 	struct snd_gf1_mem_block *block;  in snd_gf1_mem_look()  local
105 	for (block = alloc->first; block; block = block->next) {  in snd_gf1_mem_look()
106 		if (block->ptr == address) {  in snd_gf1_mem_look()
107 			return block;  in snd_gf1_mem_look()
116 	struct snd_gf1_mem_block *block;  in snd_gf1_mem_share()  local
121 	for (block = alloc->first; block; block = block->next)  in snd_gf1_mem_share()
122 		if (!memcmp(share_id, block->share_id,  in snd_gf1_mem_share()
123 				sizeof(block->share_id)))  in snd_gf1_mem_share()
124 			return block;  in snd_gf1_mem_share()
129 			    struct snd_gf1_mem_block * block,  in snd_gf1_mem_find()  argument
130 			    unsigned int size, int w_16, int align)  in snd_gf1_mem_find()  argument
132 	struct snd_gf1_bank_info *info = w_16 ? alloc->banks_16 : alloc->banks_8;  in snd_gf1_mem_find()
140 	block->flags = w_16 ? SNDRV_GF1_MEM_BLOCK_16BIT : 0;  in snd_gf1_mem_find()
141 	block->owner = SNDRV_GF1_MEM_OWNER_DRIVER;  in snd_gf1_mem_find()
142 	block->share = 0;  in snd_gf1_mem_find()
143 	block->share_id[0] = block->share_id[1] =  in snd_gf1_mem_find()
144 	block->share_id[2] = block->share_id[3] = 0;  in snd_gf1_mem_find()
145 	block->name = NULL;  in snd_gf1_mem_find()
146 	block->prev = block->next = NULL;  in snd_gf1_mem_find()
147 	for (pblock = alloc->first, idx = 0; pblock; pblock = pblock->next) {  in snd_gf1_mem_find()
148 		while (pblock->ptr >= (boundary = info[idx].address + info[idx].size))  in snd_gf1_mem_find()
150 		while (pblock->ptr + pblock->size >= (boundary = info[idx].address + info[idx].size))  in snd_gf1_mem_find()
153 		if (pblock->next) {  in snd_gf1_mem_find()
154 			if (pblock->ptr + pblock->size == pblock->next->ptr)  in snd_gf1_mem_find()
156 			if (pblock->next->ptr < boundary)  in snd_gf1_mem_find()
157 				ptr2 = pblock->next->ptr;  in snd_gf1_mem_find()
159 		ptr1 = ALIGN(pblock->ptr + pblock->size, align);  in snd_gf1_mem_find()
162 		size1 = ptr2 - ptr1;  in snd_gf1_mem_find()
163 		if ((int)size <= size1) {  in snd_gf1_mem_find()
164 			block->ptr = ptr1;  in snd_gf1_mem_find()
165 			block->size = size;  in snd_gf1_mem_find()
170 		if (size <= info[idx].size) {  in snd_gf1_mem_find()
172 			block->ptr = info[idx].address;  in snd_gf1_mem_find()
173 			block->size = size;  in snd_gf1_mem_find()
177 	return -ENOMEM;  in snd_gf1_mem_find()
181 				       char *name, int size, int w_16, int align,  in snd_gf1_mem_alloc()  argument
184 	struct snd_gf1_mem_block block, *nblock;  in snd_gf1_mem_alloc()  local
190 			if (size != (int)nblock->size) {  in snd_gf1_mem_alloc()
192 				pr_err("%s - share: sizes differ\n", __func__);  in snd_gf1_mem_alloc()
195 			nblock->share++;  in snd_gf1_mem_alloc()
201 	if (snd_gf1_mem_find(alloc, &block, size, w_16, align) < 0) {  in snd_gf1_mem_alloc()
206 		memcpy(&block.share_id, share_id, sizeof(block.share_id));  in snd_gf1_mem_alloc()
207 	block.owner = owner;  in snd_gf1_mem_alloc()
208 	nblock = snd_gf1_mem_xalloc(alloc, &block, name);  in snd_gf1_mem_alloc()
216 	struct snd_gf1_mem_block *block;  in snd_gf1_mem_free()  local
219 	block = snd_gf1_mem_look(alloc, address);  in snd_gf1_mem_free()
220 	if (block) {  in snd_gf1_mem_free()
221 		result = snd_gf1_mem_xfree(alloc, block);  in snd_gf1_mem_free()
226 	return -EINVAL;  in snd_gf1_mem_free()
232 	struct snd_gf1_mem_block block;  in snd_gf1_mem_init()  local
234 	alloc = &gus->gf1.mem_alloc;  in snd_gf1_mem_init()
235 	mutex_init(&alloc->memory_mutex);  in snd_gf1_mem_init()
236 	alloc->first = alloc->last = NULL;  in snd_gf1_mem_init()
237 	if (!gus->gf1.memory)  in snd_gf1_mem_init()
240 	memset(&block, 0, sizeof(block));  in snd_gf1_mem_init()
241 	block.owner = SNDRV_GF1_MEM_OWNER_DRIVER;  in snd_gf1_mem_init()
242 	if (gus->gf1.enh_mode) {  in snd_gf1_mem_init()
243 		block.ptr = 0;  in snd_gf1_mem_init()
244 		block.size = 1024;  in snd_gf1_mem_init()
245 		if (!snd_gf1_mem_xalloc(alloc, &block, "InterWave LFOs"))  in snd_gf1_mem_init()
246 			return -ENOMEM;  in snd_gf1_mem_init()
248 	block.ptr = gus->gf1.default_voice_address;  in snd_gf1_mem_init()
249 	block.size = 4;  in snd_gf1_mem_init()
250 	if (!snd_gf1_mem_xalloc(alloc, &block, "Voice default (NULL's)"))  in snd_gf1_mem_init()
251 		return -ENOMEM;  in snd_gf1_mem_init()
253 	snd_card_ro_proc_new(gus->card, "gusmem", gus, snd_gf1_mem_info_read);  in snd_gf1_mem_init()
261 	struct snd_gf1_mem_block *block, *nblock;  in snd_gf1_mem_done()  local
263 	alloc = &gus->gf1.mem_alloc;  in snd_gf1_mem_done()
264 	block = alloc->first;  in snd_gf1_mem_done()
265 	while (block) {  in snd_gf1_mem_done()
266 		nblock = block->next;  in snd_gf1_mem_done()
267 		snd_gf1_mem_xfree(alloc, block);  in snd_gf1_mem_done()
268 		block = nblock;  in snd_gf1_mem_done()
279 	struct snd_gf1_mem_block *block;  in snd_gf1_mem_info_read()  local
283 	gus = entry->private_data;  in snd_gf1_mem_info_read()
284 	alloc = &gus->gf1.mem_alloc;  in snd_gf1_mem_info_read()
285 	mutex_lock(&alloc->memory_mutex);  in snd_gf1_mem_info_read()
286 	snd_iprintf(buffer, "8-bit banks       : \n    ");  in snd_gf1_mem_info_read()
288 …snd_iprintf(buffer, "0x%06x (%04ik)%s", alloc->banks_8[i].address, alloc->banks_8[i].size >> 10, i…  in snd_gf1_mem_info_read()
290 		    "16-bit banks      : \n    ");  in snd_gf1_mem_info_read()
292 …snd_iprintf(buffer, "0x%06x (%04ik)%s", alloc->banks_16[i].address, alloc->banks_16[i].size >> 10,…  in snd_gf1_mem_info_read()
293 		total += alloc->banks_16[i].size;  in snd_gf1_mem_info_read()
297 	for (block = alloc->first, i = 0; block; block = block->next, i++) {  in snd_gf1_mem_info_read()
298 		used += block->size;  in snd_gf1_mem_info_read()
299 …snd_iprintf(buffer, "Block %i onboard 0x%x size %i (0x%x):\n", i, block->ptr, block->size, block->…  in snd_gf1_mem_info_read()
300 		if (block->share ||  in snd_gf1_mem_info_read()
301 		    block->share_id[0] || block->share_id[1] ||  in snd_gf1_mem_info_read()
302 		    block->share_id[2] || block->share_id[3])  in snd_gf1_mem_info_read()
304 				block->share,  in snd_gf1_mem_info_read()
305 				block->share_id[0], block->share_id[1],  in snd_gf1_mem_info_read()
306 				block->share_id[2], block->share_id[3]);  in snd_gf1_mem_info_read()
308 		block->flags & SNDRV_GF1_MEM_BLOCK_16BIT ? " 16-bit" : "");  in snd_gf1_mem_info_read()
310 		switch (block->owner) {  in snd_gf1_mem_info_read()
312 			snd_iprintf(buffer, "driver - %s\n", block->name);  in snd_gf1_mem_info_read()
328 		    total, used, total - used);  in snd_gf1_mem_info_read()
329 	mutex_unlock(&alloc->memory_mutex);  in snd_gf1_mem_info_read()
331 	ultra_iprintf(buffer, "  Verify: free = %i, max 8-bit block = %i, max 16-bit block = %i\n",  in snd_gf1_mem_info_read()
332 		      ultra_memory_free_size(card, &card->gf1.mem_alloc),  in snd_gf1_mem_info_read()
333 		  ultra_memory_free_block(card, &card->gf1.mem_alloc, 0),  in snd_gf1_mem_info_read()
334 		 ultra_memory_free_block(card, &card->gf1.mem_alloc, 1));  in snd_gf1_mem_info_read()