* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
*/
+#include <linux/memory_hotplug.h>
#include <linux/memblock.h>
#include <linux/pfn.h>
#include <linux/mm.h>
if (slab_is_available())
return (void *)__get_free_pages(GFP_KERNEL, order);
- return (void *) memblock_phys_alloc(size, size);
+ return memblock_alloc(size, size);
}
static void vmem_free_pages(unsigned long addr, int order)
{
/* We don't expect boot memory to be removed ever. */
if (!slab_is_available() ||
- WARN_ON_ONCE(PageReserved(phys_to_page(addr))))
+ WARN_ON_ONCE(PageReserved(virt_to_page(addr))))
return;
free_pages(addr, order);
}
if (slab_is_available())
pte = (pte_t *) page_table_alloc(&init_mm);
else
- pte = (pte_t *) memblock_phys_alloc(size, size);
+ pte = (pte_t *) memblock_alloc(size, size);
if (!pte)
return NULL;
memset64((u64 *)pte, _PAGE_INVALID, PTRS_PER_PTE);
{
if (!unused_sub_pmd_start)
return;
- memset(__va(unused_sub_pmd_start), PAGE_UNUSED,
+ memset((void *)unused_sub_pmd_start, PAGE_UNUSED,
ALIGN(unused_sub_pmd_start, PMD_SIZE) - unused_sub_pmd_start);
unused_sub_pmd_start = 0;
}
* getting removed (just in case the memmap never gets initialized,
* e.g., because the memory block never gets onlined).
*/
- memset(__va(start), 0, sizeof(struct page));
+ memset((void *)start, 0, sizeof(struct page));
}
static void vmemmap_use_sub_pmd(unsigned long start, unsigned long end)
static void vmemmap_use_new_sub_pmd(unsigned long start, unsigned long end)
{
- void *page = __va(ALIGN_DOWN(start, PMD_SIZE));
+ unsigned long page = ALIGN_DOWN(start, PMD_SIZE);
vmemmap_flush_unused_sub_pmd();
/* Mark the unused parts of the new memmap page PAGE_UNUSED. */
if (!IS_ALIGNED(start, PMD_SIZE))
- memset(page, PAGE_UNUSED, start - __pa(page));
+ memset((void *)page, PAGE_UNUSED, start - page);
/*
* We want to avoid memset(PAGE_UNUSED) when populating the vmemmap of
* consecutive sections. Remember for the last added PMD the last
/* Returns true if the PMD is completely unused and can be freed. */
static bool vmemmap_unuse_sub_pmd(unsigned long start, unsigned long end)
{
- void *page = __va(ALIGN_DOWN(start, PMD_SIZE));
+ unsigned long page = ALIGN_DOWN(start, PMD_SIZE);
vmemmap_flush_unused_sub_pmd();
- memset(__va(start), PAGE_UNUSED, end - start);
- return !memchr_inv(page, PAGE_UNUSED, PMD_SIZE);
+ memset((void *)start, PAGE_UNUSED, end - start);
+ return !memchr_inv((void *)page, PAGE_UNUSED, PMD_SIZE);
}
/* __ref: we'll only call vmemmap_alloc_block() via vmemmap_populate() */
if (pte_none(*pte))
continue;
if (!direct)
- vmem_free_pages(pfn_to_phys(pte_pfn(*pte)), 0);
+ vmem_free_pages((unsigned long) pfn_to_virt(pte_pfn(*pte)), 0);
pte_clear(&init_mm, addr, pte);
} else if (pte_none(*pte)) {
if (!direct) {
goto out;
pte_val(*pte) = __pa(new_page) | prot;
} else {
- pte_val(*pte) = addr | prot;
+ pte_val(*pte) = __pa(addr) | prot;
}
} else {
continue;
if (!pte_none(*pte))
return;
}
- vmem_pte_free(__va(pmd_deref(*pmd)));
+ vmem_pte_free((unsigned long *) pmd_deref(*pmd));
pmd_clear(pmd);
}
IS_ALIGNED(next, PMD_SIZE) &&
MACHINE_HAS_EDAT1 && addr && direct &&
!debug_pagealloc_enabled()) {
- pmd_val(*pmd) = addr | prot;
+ pmd_val(*pmd) = __pa(addr) | prot;
pages++;
continue;
} else if (!direct && MACHINE_HAS_EDAT1) {
IS_ALIGNED(next, PUD_SIZE) &&
MACHINE_HAS_EDAT2 && addr && direct &&
!debug_pagealloc_enabled()) {
- pud_val(*pud) = addr | prot;
+ pud_val(*pud) = __pa(addr) | prot;
pages++;
continue;
}
mutex_unlock(&vmem_mutex);
}
+struct range arch_get_mappable_range(void)
+{
+ struct range mhp_range;
+
+ mhp_range.start = 0;
+ mhp_range.end = VMEM_MAX_PHYS - 1;
+ return mhp_range;
+}
+
int vmem_add_mapping(unsigned long start, unsigned long size)
{
+ struct range range = arch_get_mappable_range();
int ret;
- if (start + size > VMEM_MAX_PHYS ||
+ if (start < range.start ||
+ start + size > range.end + 1 ||
start + size < start)
return -ERANGE;