}
EXPORT_SYMBOL(devm_memunmap);
-pfn_t phys_to_pfn_t(phys_addr_t addr, u64 flags)
-{
- return __pfn_to_pfn_t(addr >> PAGE_SHIFT, flags);
-}
-EXPORT_SYMBOL(phys_to_pfn_t);
-
#ifdef CONFIG_ZONE_DEVICE
static DEFINE_MUTEX(pgmap_lock);
static RADIX_TREE(pgmap_radix, GFP_KERNEL);
if (is_ram == REGION_INTERSECTS)
return __va(res->start);
- if (altmap && !IS_ENABLED(CONFIG_SPARSEMEM_VMEMMAP)) {
- dev_err(dev, "%s: altmap requires CONFIG_SPARSEMEM_VMEMMAP=y\n",
- __func__);
- return ERR_PTR(-ENXIO);
- }
-
if (!ref)
return ERR_PTR(-EINVAL);
altmap->alloc -= nr_pfns;
}
-#ifdef CONFIG_SPARSEMEM_VMEMMAP
struct vmem_altmap *to_vmem_altmap(unsigned long memmap_start)
{
/*
return pgmap ? pgmap->altmap : NULL;
}
-#endif /* CONFIG_SPARSEMEM_VMEMMAP */
#endif /* CONFIG_ZONE_DEVICE */