C++ (Cpp) memblock_find_in_range_node 예제들

예제 #1

파일: nobootmem.c 프로젝트: a2hojsjsjs/linux

static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
					u64 goal, u64 limit)
{
	void *ptr;
	u64 addr;
	ulong flags = choose_memblock_flags();

	if (limit > memblock.current_limit)
		limit = memblock.current_limit;

again:
	addr = memblock_find_in_range_node(size, align, goal, limit, nid,
					   flags);
	if (!addr && (flags & MEMBLOCK_MIRROR)) {
		flags &= ~MEMBLOCK_MIRROR;
		pr_warn("Could not allocate %pap bytes of mirrored memory\n",
			&size);
		goto again;
	}
	if (!addr)
		return NULL;

	if (memblock_reserve(addr, size))
		return NULL;

	ptr = phys_to_virt(addr);
	memset(ptr, 0, size);
	/*
	 * The min_count is set to 0 so that bootmem allocated blocks
	 * are never reported as leaks.
	 */
	kmemleak_alloc(ptr, size, 0, 0);
	return ptr;
}

예제 #2

static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
					u64 goal, u64 limit)
{
	void *ptr;
	u64 addr;

	if (limit > memblock.current_limit)
		limit = memblock.current_limit;

	addr = memblock_find_in_range_node(size, align, goal, limit, nid);
	if (!addr)
		return NULL;

	if (memblock_reserve(addr, size))
		return NULL;

	ptr = phys_to_virt(addr);
	memset(ptr, 0, size);
	/*
	 * The min_count is set to 0 so that bootmem allocated blocks
	 * are never reported as leaks.
	 */
	kmemleak_alloc(ptr, size, 0, 0);
	return ptr;
}

예제 #3

파일: bootmem_memblk.c 프로젝트: lastweek/Sandix

static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
					       u64 goal, u64 limit)
{
	phys_addr_t addr;
	void *ptr;
	unsigned long flags = choose_memblock_flags();

	if (WARN_ON_ONCE(limit > memblock.current_limit)) {
		limit = memblock.current_limit;
	}

again:
	addr = memblock_find_in_range_node(size, align, goal, limit, nid, flags);
	if (!addr && (flags & MEMBLOCK_MIRROR)) {
		flags &= ~MEMBLOCK_MIRROR;
		pr_warn("Could not allocate %pap bytes of mirrored memory\n",
			&size);
		goto again;
	}
	if (!addr)
		return NULL;

	if (memblock_reserve(addr, size))
		return NULL;

	ptr = phys_to_virt(addr);
	memset(ptr, 0, size);
	return ptr;
}

예제 #4

파일: nobootmem.c 프로젝트: jyizheng/goldfish_pasr_lib_x86

static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
					u64 goal, u64 limit)
{
	void *ptr;
	u64 addr;

	if (limit > memblock.current_limit)
		limit = memblock.current_limit;

	addr = memblock_find_in_range_node(goal, limit, size, align, nid);
	if (!addr)
		return NULL;

#ifndef CONFIG_LIB
	ptr = phys_to_virt(addr);
#else
	BUG_ON(total_ram == NULL);
	ptr = total_ram + 
		((unsigned long)phys_to_virt(addr) - PAGE_OFFSET); 
#endif
	memset(ptr, 0, size);
	memblock_reserve(addr, size);
	/*
	 * The min_count is set to 0 so that bootmem allocated blocks
	 * are never reported as leaks.
	 */
	kmemleak_alloc(ptr, size, 0, 0);
	return ptr;
}

예제 #5

phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid)
{
	phys_addr_t found;

	/*
	 * We align the size to limit fragmentation. Without this, a lot of
	 * small allocs quickly eat up the whole reserve array on sparc
	 */
	size = round_up(size, align);

	found = memblock_find_in_range_node(0, MEMBLOCK_ALLOC_ACCESSIBLE,
					    size, align, nid);
	if (found && !memblock_reserve(found, size))
		return found;

	return 0;
}