drivers/misc/sram.c

29 	struct sram_partition *part;
31 	part = container_of(attr, struct sram_partition, battr);
33 	mutex_lock(&part->lock);
34 	memcpy_fromio(buf, part->base + pos, count);
35 	mutex_unlock(&part->lock);
44 	struct sram_partition *part;
46 	part = container_of(attr, struct sram_partition, battr);
48 	mutex_lock(&part->lock);
49 	memcpy_toio(part->base + pos, buf, count);
50 	mutex_unlock(&part->lock);
56 			 phys_addr_t start, struct sram_partition *part)
60 	part->pool = devm_gen_pool_create(sram->dev, ilog2(SRAM_GRANULARITY),
62 	if (IS_ERR(part->pool))
63 		return PTR_ERR(part->pool);
65 	ret = gen_pool_add_virt(part->pool, (unsigned long)part->base, start,
76 			   phys_addr_t start, struct sram_partition *part)
78 	sysfs_bin_attr_init(&part->battr);
79 	part->battr.attr.name = devm_kasprintf(sram->dev, GFP_KERNEL,
82 	if (!part->battr.attr.name)
85 	part->battr.attr.mode = S_IRUSR | S_IWUSR;
86 	part->battr.read = sram_read;
87 	part->battr.write = sram_write;
88 	part->battr.size = block->size;
90 	return device_create_bin_file(sram->dev, &part->battr);
97 	struct sram_partition *part = &sram->partition[sram->partitions];
99 	mutex_init(&part->lock);
114 		part->base = virt_base;
116 		part->base = sram->virt_base + block->start;
120 		ret = sram_add_pool(sram, block, start, part);
125 		ret = sram_add_export(sram, block, start, part);
130 		ret = sram_check_protect_exec(sram, block, part);
134 		ret = sram_add_pool(sram, block, start, part);
138 		sram_add_protect_exec(part);
148 	struct sram_partition *part;
153 	part = &sram->partition[sram->partitions - 1];
154 	for (; sram->partitions; sram->partitions--, part--) {
155 		if (part->battr.size)
156 			device_remove_bin_file(sram->dev, &part->battr);
158 		if (part->pool &&
159 		    gen_pool_avail(part->pool) < gen_pool_size(part->pool))