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-rw-r--r--arch/x86/mm/fault.c6
-rw-r--r--arch/x86/mm/highmem_32.c1
-rw-r--r--arch/x86/mm/init.c10
-rw-r--r--arch/x86/mm/init_32.c10
-rw-r--r--arch/x86/mm/init_64.c73
-rw-r--r--arch/x86/mm/ioremap.c7
-rw-r--r--arch/x86/mm/numa.c9
-rw-r--r--arch/x86/mm/pageattr-test.c7
-rw-r--r--arch/x86/mm/pageattr.c12
-rw-r--r--arch/x86/mm/pat.c7
-rw-r--r--arch/x86/mm/pgtable.c7
11 files changed, 70 insertions, 79 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index fa8c02de0d2..022a9a0a3c6 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -378,10 +378,12 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
if (pgd_none(*pgd_ref))
return -1;
- if (pgd_none(*pgd))
+ if (pgd_none(*pgd)) {
set_pgd(pgd, *pgd_ref);
- else
+ arch_flush_lazy_mmu_mode();
+ } else {
BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+ }
/*
* Below here mismatches are bugs because these lower tables
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 6f31ee56c00..252b8f5489b 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -137,5 +137,4 @@ void __init set_highmem_pages_init(void)
add_highpages_with_active_regions(nid, zone_start_pfn,
zone_end_pfn);
}
- totalram_pages += totalhigh_pages;
}
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 4903a03ae87..fdc5dca14fb 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -410,9 +410,8 @@ void __init init_mem_mapping(void)
/* the ISA range is always mapped regardless of memory holes */
init_memory_mapping(0, ISA_END_ADDRESS);
- /* xen has big range in reserved near end of ram, skip it at first */
- addr = memblock_find_in_range(ISA_END_ADDRESS, end, PMD_SIZE,
- PAGE_SIZE);
+ /* xen has big range in reserved near end of ram, skip it at first.*/
+ addr = memblock_find_in_range(ISA_END_ADDRESS, end, PMD_SIZE, PMD_SIZE);
real_end = addr + PMD_SIZE;
/* step_size need to be small so pgt_buf from BRK could cover it */
@@ -516,11 +515,8 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
for (; addr < end; addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
- free_page(addr);
- totalram_pages++;
+ free_reserved_page(virt_to_page(addr));
}
#endif
}
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 2d19001151d..3ac7e319918 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -427,14 +427,6 @@ static void __init permanent_kmaps_init(pgd_t *pgd_base)
pkmap_page_table = pte;
}
-static void __init add_one_highpage_init(struct page *page)
-{
- ClearPageReserved(page);
- init_page_count(page);
- __free_page(page);
- totalhigh_pages++;
-}
-
void __init add_highpages_with_active_regions(int nid,
unsigned long start_pfn, unsigned long end_pfn)
{
@@ -448,7 +440,7 @@ void __init add_highpages_with_active_regions(int nid,
start_pfn, end_pfn);
for ( ; pfn < e_pfn; pfn++)
if (pfn_valid(pfn))
- add_one_highpage_init(pfn_to_page(pfn));
+ free_highmem_page(pfn_to_page(pfn));
}
}
#else
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 474e28f1081..71ff55a1b28 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1011,11 +1011,8 @@ remove_pagetable(unsigned long start, unsigned long end, bool direct)
flush_tlb_all();
}
-void __ref vmemmap_free(struct page *memmap, unsigned long nr_pages)
+void __ref vmemmap_free(unsigned long start, unsigned long end)
{
- unsigned long start = (unsigned long)memmap;
- unsigned long end = (unsigned long)(memmap + nr_pages);
-
remove_pagetable(start, end, false);
}
@@ -1067,10 +1064,9 @@ void __init mem_init(void)
/* clear_bss() already clear the empty_zero_page */
- reservedpages = 0;
-
- /* this will put all low memory onto the freelists */
register_page_bootmem_info();
+
+ /* this will put all memory onto the freelists */
totalram_pages = free_all_bootmem();
absent_pages = absent_pages_in_range(0, max_pfn);
@@ -1285,18 +1281,17 @@ static long __meminitdata addr_start, addr_end;
static void __meminitdata *p_start, *p_end;
static int __meminitdata node_start;
-int __meminit
-vmemmap_populate(struct page *start_page, unsigned long size, int node)
+static int __meminit vmemmap_populate_hugepages(unsigned long start,
+ unsigned long end, int node)
{
- unsigned long addr = (unsigned long)start_page;
- unsigned long end = (unsigned long)(start_page + size);
+ unsigned long addr;
unsigned long next;
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
- for (; addr < end; addr = next) {
- void *p = NULL;
+ for (addr = start; addr < end; addr = next) {
+ next = pmd_addr_end(addr, end);
pgd = vmemmap_pgd_populate(addr, node);
if (!pgd)
@@ -1306,31 +1301,14 @@ vmemmap_populate(struct page *start_page, unsigned long size, int node)
if (!pud)
return -ENOMEM;
- if (!cpu_has_pse) {
- next = (addr + PAGE_SIZE) & PAGE_MASK;
- pmd = vmemmap_pmd_populate(pud, addr, node);
-
- if (!pmd)
- return -ENOMEM;
-
- p = vmemmap_pte_populate(pmd, addr, node);
+ pmd = pmd_offset(pud, addr);
+ if (pmd_none(*pmd)) {
+ void *p;
- if (!p)
- return -ENOMEM;
-
- addr_end = addr + PAGE_SIZE;
- p_end = p + PAGE_SIZE;
- } else {
- next = pmd_addr_end(addr, end);
-
- pmd = pmd_offset(pud, addr);
- if (pmd_none(*pmd)) {
+ p = vmemmap_alloc_block_buf(PMD_SIZE, node);
+ if (p) {
pte_t entry;
- p = vmemmap_alloc_block_buf(PMD_SIZE, node);
- if (!p)
- return -ENOMEM;
-
entry = pfn_pte(__pa(p) >> PAGE_SHIFT,
PAGE_KERNEL_LARGE);
set_pmd(pmd, __pmd(pte_val(entry)));
@@ -1347,15 +1325,32 @@ vmemmap_populate(struct page *start_page, unsigned long size, int node)
addr_end = addr + PMD_SIZE;
p_end = p + PMD_SIZE;
- } else
- vmemmap_verify((pte_t *)pmd, node, addr, next);
+ continue;
+ }
+ } else if (pmd_large(*pmd)) {
+ vmemmap_verify((pte_t *)pmd, node, addr, next);
+ continue;
}
-
+ pr_warn_once("vmemmap: falling back to regular page backing\n");
+ if (vmemmap_populate_basepages(addr, next, node))
+ return -ENOMEM;
}
- sync_global_pgds((unsigned long)start_page, end - 1);
return 0;
}
+int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
+{
+ int err;
+
+ if (cpu_has_pse)
+ err = vmemmap_populate_hugepages(start, end, node);
+ else
+ err = vmemmap_populate_basepages(start, end, node);
+ if (!err)
+ sync_global_pgds(start, end - 1);
+ return err;
+}
+
#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
void register_page_bootmem_memmap(unsigned long section_nr,
struct page *start_page, unsigned long size)
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 78fe3f1ac49..9a1e6583910 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -282,12 +282,7 @@ void iounmap(volatile void __iomem *addr)
in parallel. Reuse of the virtual address is prevented by
leaving it in the global lists until we're done with it.
cpa takes care of the direct mappings. */
- read_lock(&vmlist_lock);
- for (p = vmlist; p; p = p->next) {
- if (p->addr == (void __force *)addr)
- break;
- }
- read_unlock(&vmlist_lock);
+ p = find_vm_area((void __force *)addr);
if (!p) {
printk(KERN_ERR "iounmap: bad address %p\n", addr);
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 72fe01e9e41..a71c4e20767 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -114,14 +114,11 @@ void numa_clear_node(int cpu)
*/
void __init setup_node_to_cpumask_map(void)
{
- unsigned int node, num = 0;
+ unsigned int node;
/* setup nr_node_ids if not done yet */
- if (nr_node_ids == MAX_NUMNODES) {
- for_each_node_mask(node, node_possible_map)
- num = node;
- nr_node_ids = num + 1;
- }
+ if (nr_node_ids == MAX_NUMNODES)
+ setup_nr_node_ids();
/* allocate the map */
for (node = 0; node < nr_node_ids; node++)
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index b0086567271..d0b1773d9d2 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -68,7 +68,7 @@ static int print_split(struct split_state *s)
s->gpg++;
i += GPS/PAGE_SIZE;
} else if (level == PG_LEVEL_2M) {
- if (!(pte_val(*pte) & _PAGE_PSE)) {
+ if ((pte_val(*pte) & _PAGE_PRESENT) && !(pte_val(*pte) & _PAGE_PSE)) {
printk(KERN_ERR
"%lx level %d but not PSE %Lx\n",
addr, level, (u64)pte_val(*pte));
@@ -130,13 +130,12 @@ static int pageattr_test(void)
}
failed += print_split(&sa);
- srandom32(100);
for (i = 0; i < NTEST; i++) {
- unsigned long pfn = random32() % max_pfn_mapped;
+ unsigned long pfn = prandom_u32() % max_pfn_mapped;
addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
- len[i] = random32() % 100;
+ len[i] = prandom_u32() % 100;
len[i] = min_t(unsigned long, len[i], max_pfn_mapped - pfn - 1);
if (len[i] == 0)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 091934e1d0d..fb4e73ec24d 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -467,7 +467,7 @@ try_preserve_large_page(pte_t *kpte, unsigned long address,
* We are safe now. Check whether the new pgprot is the same:
*/
old_pte = *kpte;
- old_prot = new_prot = req_prot = pte_pgprot(old_pte);
+ old_prot = req_prot = pte_pgprot(old_pte);
pgprot_val(req_prot) &= ~pgprot_val(cpa->mask_clr);
pgprot_val(req_prot) |= pgprot_val(cpa->mask_set);
@@ -478,12 +478,12 @@ try_preserve_large_page(pte_t *kpte, unsigned long address,
* a non present pmd. The canon_pgprot will clear _PAGE_GLOBAL
* for the ancient hardware that doesn't support it.
*/
- if (pgprot_val(new_prot) & _PAGE_PRESENT)
- pgprot_val(new_prot) |= _PAGE_PSE | _PAGE_GLOBAL;
+ if (pgprot_val(req_prot) & _PAGE_PRESENT)
+ pgprot_val(req_prot) |= _PAGE_PSE | _PAGE_GLOBAL;
else
- pgprot_val(new_prot) &= ~(_PAGE_PSE | _PAGE_GLOBAL);
+ pgprot_val(req_prot) &= ~(_PAGE_PSE | _PAGE_GLOBAL);
- new_prot = canon_pgprot(new_prot);
+ req_prot = canon_pgprot(req_prot);
/*
* old_pte points to the large page base address. So we need
@@ -1413,6 +1413,8 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
* but that can deadlock->flush only current cpu:
*/
__flush_tlb_all();
+
+ arch_flush_lazy_mmu_mode();
}
#ifdef CONFIG_HIBERNATION
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 2610bd93c89..657438858e8 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -563,6 +563,13 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags)
if (base > __pa(high_memory-1))
return 0;
+ /*
+ * some areas in the middle of the kernel identity range
+ * are not mapped, like the PCI space.
+ */
+ if (!page_is_ram(base >> PAGE_SHIFT))
+ return 0;
+
id_sz = (__pa(high_memory-1) <= base + size) ?
__pa(high_memory) - base :
size;
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 193350b51f9..17fda6a8b3c 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -58,6 +58,13 @@ void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
{
paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT);
+ /*
+ * NOTE! For PAE, any changes to the top page-directory-pointer-table
+ * entries need a full cr3 reload to flush.
+ */
+#ifdef CONFIG_X86_PAE
+ tlb->need_flush_all = 1;
+#endif
tlb_remove_page(tlb, virt_to_page(pmd));
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-27 19:38:59 +0000