61 static void *mem_alloc_tmp(struct boot_mem_desc *desc, size_t len, size_t align)  in mem_alloc_tmp()  argument
68 	assert(desc && desc->mem_start && desc->mem_end);  in mem_alloc_tmp()
70 	if (SUB_OVERFLOW(desc->mem_end, len, &va))  in mem_alloc_tmp()
73 	if (va < desc->mem_start)  in mem_alloc_tmp()
75 	desc->mem_end = va;  in mem_alloc_tmp()
82 static void add_padding(struct boot_mem_desc *desc, vaddr_t va)  in add_padding()  argument
85 	vaddr_t start = desc->mem_start;  in add_padding()
97 		pad->next = desc->padding;  in add_padding()
98 		desc->padding = pad;  in add_padding()
102 static void *mem_alloc(struct boot_mem_desc *desc, size_t len, size_t align)  in mem_alloc()  argument
111 	assert(desc && desc->mem_start && desc->mem_end);  in mem_alloc()
113 	va = ROUNDUP2(desc->mem_start, align);  in mem_alloc()
116 	if (ve > desc->mem_end)  in mem_alloc()
118 	add_padding(desc, va);  in mem_alloc()
119 	desc->mem_start = ve;  in mem_alloc()
128 	struct boot_mem_desc desc = {  in boot_mem_init()  local
135 	boot_mem_desc = mem_alloc_tmp(&desc, sizeof(desc), alignof(desc));  in boot_mem_init()
136 	*boot_mem_desc = desc;  in boot_mem_init()