Esempi in C++ (Cpp) per ioremap_pud_range

Esempio n. 1

File: ioremap.c Progetto: ReneNyffenegger/linux

static inline int ioremap_p4d_range(pgd_t *pgd, unsigned long addr,
		unsigned long end, phys_addr_t phys_addr, pgprot_t prot)
{
	p4d_t *p4d;
	unsigned long next;

	phys_addr -= addr;
	p4d = p4d_alloc(&init_mm, pgd, addr);
	if (!p4d)
		return -ENOMEM;
	do {
		next = p4d_addr_end(addr, end);

		if (ioremap_p4d_enabled() &&
		    ((next - addr) == P4D_SIZE) &&
		    IS_ALIGNED(phys_addr + addr, P4D_SIZE)) {
			if (p4d_set_huge(p4d, phys_addr + addr, prot))
				continue;
		}

		if (ioremap_pud_range(p4d, addr, next, phys_addr + addr, prot))
			return -ENOMEM;
	} while (p4d++, addr = next, addr != end);
	return 0;
}

Esempio n. 2

File: ioremap.c Progetto: 12rafael/jellytimekernel

int ioremap_page_range(unsigned long addr,
		       unsigned long end, unsigned long phys_addr, pgprot_t prot)
{
	pgd_t *pgd;
	unsigned long start;
	unsigned long next;
	int err;

	BUG_ON(addr >= end);

	start = addr;
	phys_addr -= addr;
	pgd = pgd_offset_k(addr);
	do {
		next = pgd_addr_end(addr, end);
		err = ioremap_pud_range(pgd, addr, next, phys_addr+addr, prot);
		if (err)
			break;
	} while (pgd++, addr = next, addr != end);

	flush_cache_vmap(start, end);

	return err;
}