Esempi in C++ (Cpp) per mem_type_to_memory_pool

Esempio n. 1

void *allocate_contiguous_memory(unsigned long size,
	int mem_type, unsigned long align, int cached)
{
	unsigned long aligned_size = PFN_ALIGN(size);
	struct mem_pool *mpool;

	mpool = mem_type_to_memory_pool(mem_type);
	if (!mpool)
		return NULL;
	return __alloc(mpool, aligned_size, align, cached);

}

Esempio n. 2

unsigned long allocate_contiguous_memory_nomap(unsigned long size,
	int mem_type, unsigned long align)
{
	unsigned long paddr;
	unsigned long aligned_size;

	struct alloc *node;
	struct mem_pool *mpool;
	int log_align = ilog2(align);

	mpool = mem_type_to_memory_pool(mem_type);
	if (!mpool)
		return -EINVAL;

	if (!mpool->gpool)
		return -EAGAIN;

	aligned_size = PFN_ALIGN(size);
	paddr = gen_pool_alloc_aligned(mpool->gpool, aligned_size, log_align);
	if (!paddr)
		return -EAGAIN;

	node = kmalloc(sizeof(struct alloc), GFP_KERNEL);
	if (!node)
		goto out;

	node->paddr = paddr;

	/* We search the tree using node->vaddr, so set
	 * it to something unique even though we don't
	 * use it for physical allocation nodes.
	 * The virtual and physical address ranges
	 * are disjoint, so there won't be any chance of
	 * a duplicate node->vaddr value.
	 */
	node->vaddr = (void *)paddr;
	node->len = aligned_size;
	node->mpool = mpool;
	if (add_alloc(node))
		goto out_kfree;

	mpool->free -= aligned_size;
	return paddr;
out_kfree:
	kfree(node);
out:
	gen_pool_free(mpool->gpool, paddr, aligned_size);
	return -ENOMEM;
}

Esempio n. 3

File: memory_alloc.c Progetto: MiniBlu/cm11_kernel_htc_msm8974a3ul

phys_addr_t _allocate_contiguous_memory_nomap(unsigned long size,
	int mem_type, unsigned long align, void *caller)
{
	phys_addr_t paddr;
	unsigned long aligned_size;

	struct alloc *node;
	struct mem_pool *mpool;
	int log_align = ilog2(align);

	mpool = mem_type_to_memory_pool(mem_type);
	if (!mpool || !mpool->gpool)
		return 0;

	aligned_size = PFN_ALIGN(size);
	paddr = gen_pool_alloc_aligned(mpool->gpool, aligned_size, log_align);
	if (!paddr)
		return 0;

	node = kmalloc(sizeof(struct alloc), GFP_KERNEL);
	if (!node)
		goto out;

	node->paddr = paddr;

	node->vaddr = paddr;
	node->len = aligned_size;
	node->mpool = mpool;
	node->caller = caller;
	if (add_alloc(node))
		goto out_kfree;

	mpool->free -= aligned_size;
	return paddr;
out_kfree:
	kfree(node);
out:
	gen_pool_free(mpool->gpool, paddr, aligned_size);
	return 0;
}