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-rw-r--r--arch/arm/mm/dma-mapping.c11
-rw-r--r--arch/arm/mm/fault-armv.c7
-rw-r--r--arch/arm/mm/fault.c39
-rw-r--r--arch/arm/mm/idmap.c35
-rw-r--r--arch/arm/mm/init.c6
-rw-r--r--arch/arm/mm/mm.h2
-rw-r--r--arch/arm/mm/mmu.c71
-rw-r--r--arch/arm/mm/pgd.c24
8 files changed, 144 insertions, 51 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 4771dba..82a093c 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -149,6 +149,7 @@ static int __init consistent_init(void)
{
int ret = 0;
pgd_t *pgd;
+ pud_t *pud;
pmd_t *pmd;
pte_t *pte;
int i = 0;
@@ -156,7 +157,15 @@ static int __init consistent_init(void)
do {
pgd = pgd_offset(&init_mm, base);
- pmd = pmd_alloc(&init_mm, pgd, base);
+
+ pud = pud_alloc(&init_mm, pgd, base);
+ if (!pud) {
+ printk(KERN_ERR "%s: no pud tables\n", __func__);
+ ret = -ENOMEM;
+ break;
+ }
+
+ pmd = pmd_alloc(&init_mm, pud, base);
if (!pmd) {
printk(KERN_ERR "%s: no pmd tables\n", __func__);
ret = -ENOMEM;
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 01210db..7cab791 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -95,6 +95,7 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address,
{
spinlock_t *ptl;
pgd_t *pgd;
+ pud_t *pud;
pmd_t *pmd;
pte_t *pte;
int ret;
@@ -103,7 +104,11 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address,
if (pgd_none_or_clear_bad(pgd))
return 0;
- pmd = pmd_offset(pgd, address);
+ pud = pud_offset(pgd, address);
+ if (pud_none_or_clear_bad(pud))
+ return 0;
+
+ pmd = pmd_offset(pud, address);
if (pmd_none_or_clear_bad(pmd))
return 0;
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index f10f9ba..bc0e1d8 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -76,9 +76,11 @@ void show_pte(struct mm_struct *mm, unsigned long addr)
printk(KERN_ALERT "pgd = %p\n", mm->pgd);
pgd = pgd_offset(mm, addr);
- printk(KERN_ALERT "[%08lx] *pgd=%08lx", addr, pgd_val(*pgd));
+ printk(KERN_ALERT "[%08lx] *pgd=%08llx",
+ addr, (long long)pgd_val(*pgd));
do {
+ pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -90,9 +92,21 @@ void show_pte(struct mm_struct *mm, unsigned long addr)
break;
}
- pmd = pmd_offset(pgd, addr);
+ pud = pud_offset(pgd, addr);
+ if (PTRS_PER_PUD != 1)
+ printk(", *pud=%08lx", pud_val(*pud));
+
+ if (pud_none(*pud))
+ break;
+
+ if (pud_bad(*pud)) {
+ printk("(bad)");
+ break;
+ }
+
+ pmd = pmd_offset(pud, addr);
if (PTRS_PER_PMD != 1)
- printk(", *pmd=%08lx", pmd_val(*pmd));
+ printk(", *pmd=%08llx", (long long)pmd_val(*pmd));
if (pmd_none(*pmd))
break;
@@ -107,8 +121,9 @@ void show_pte(struct mm_struct *mm, unsigned long addr)
break;
pte = pte_offset_map(pmd, addr);
- printk(", *pte=%08lx", pte_val(*pte));
- printk(", *ppte=%08lx", pte_val(pte[PTE_HWTABLE_PTRS]));
+ printk(", *pte=%08llx", (long long)pte_val(*pte));
+ printk(", *ppte=%08llx",
+ (long long)pte_val(pte[PTE_HWTABLE_PTRS]));
pte_unmap(pte);
} while(0);
@@ -388,6 +403,7 @@ do_translation_fault(unsigned long addr, unsigned int fsr,
{
unsigned int index;
pgd_t *pgd, *pgd_k;
+ pud_t *pud, *pud_k;
pmd_t *pmd, *pmd_k;
if (addr < TASK_SIZE)
@@ -406,12 +422,19 @@ do_translation_fault(unsigned long addr, unsigned int fsr,
if (pgd_none(*pgd_k))
goto bad_area;
-
if (!pgd_present(*pgd))
set_pgd(pgd, *pgd_k);
- pmd_k = pmd_offset(pgd_k, addr);
- pmd = pmd_offset(pgd, addr);
+ pud = pud_offset(pgd, addr);
+ pud_k = pud_offset(pgd_k, addr);
+
+ if (pud_none(*pud_k))
+ goto bad_area;
+ if (!pud_present(*pud))
+ set_pud(pud, *pud_k);
+
+ pmd = pmd_offset(pud, addr);
+ pmd_k = pmd_offset(pud_k, addr);
/*
* On ARM one Linux PGD entry contains two hardware entries (see page
diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c
index 5729944..2be9139 100644
--- a/arch/arm/mm/idmap.c
+++ b/arch/arm/mm/idmap.c
@@ -4,10 +4,10 @@
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
-static void idmap_add_pmd(pgd_t *pgd, unsigned long addr, unsigned long end,
+static void idmap_add_pmd(pud_t *pud, unsigned long addr, unsigned long end,
unsigned long prot)
{
- pmd_t *pmd = pmd_offset(pgd, addr);
+ pmd_t *pmd = pmd_offset(pud, addr);
addr = (addr & PMD_MASK) | prot;
pmd[0] = __pmd(addr);
@@ -16,6 +16,18 @@ static void idmap_add_pmd(pgd_t *pgd, unsigned long addr, unsigned long end,
flush_pmd_entry(pmd);
}
+static void idmap_add_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
+ unsigned long prot)
+{
+ pud_t *pud = pud_offset(pgd, addr);
+ unsigned long next;
+
+ do {
+ next = pud_addr_end(addr, end);
+ idmap_add_pmd(pud, addr, next, prot);
+ } while (pud++, addr = next, addr != end);
+}
+
void identity_mapping_add(pgd_t *pgd, unsigned long addr, unsigned long end)
{
unsigned long prot, next;
@@ -27,17 +39,28 @@ void identity_mapping_add(pgd_t *pgd, unsigned long addr, unsigned long end)
pgd += pgd_index(addr);
do {
next = pgd_addr_end(addr, end);
- idmap_add_pmd(pgd, addr, next, prot);
+ idmap_add_pud(pgd, addr, next, prot);
} while (pgd++, addr = next, addr != end);
}
#ifdef CONFIG_SMP
-static void idmap_del_pmd(pgd_t *pgd, unsigned long addr, unsigned long end)
+static void idmap_del_pmd(pud_t *pud, unsigned long addr, unsigned long end)
{
- pmd_t *pmd = pmd_offset(pgd, addr);
+ pmd_t *pmd = pmd_offset(pud, addr);
pmd_clear(pmd);
}
+static void idmap_del_pud(pgd_t *pgd, unsigned long addr, unsigned long end)
+{
+ pud_t *pud = pud_offset(pgd, addr);
+ unsigned long next;
+
+ do {
+ next = pud_addr_end(addr, end);
+ idmap_del_pmd(pud, addr, next);
+ } while (pud++, addr = next, addr != end);
+}
+
void identity_mapping_del(pgd_t *pgd, unsigned long addr, unsigned long end)
{
unsigned long next;
@@ -45,7 +68,7 @@ void identity_mapping_del(pgd_t *pgd, unsigned long addr, unsigned long end)
pgd += pgd_index(addr);
do {
next = pgd_addr_end(addr, end);
- idmap_del_pmd(pgd, addr, next);
+ idmap_del_pud(pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}
#endif
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index cddd684..b3b0f0f 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -350,7 +350,7 @@ void __init bootmem_init(void)
*/
arm_bootmem_free(min, max_low, max_high);
- high_memory = __va((max_low << PAGE_SHIFT) - 1) + 1;
+ high_memory = __va(((phys_addr_t)max_low << PAGE_SHIFT) - 1) + 1;
/*
* This doesn't seem to be used by the Linux memory manager any
@@ -398,8 +398,8 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn)
* Convert to physical addresses, and
* round start upwards and end downwards.
*/
- pg = PAGE_ALIGN(__pa(start_pg));
- pgend = __pa(end_pg) & PAGE_MASK;
+ pg = (unsigned long)PAGE_ALIGN(__pa(start_pg));
+ pgend = (unsigned long)__pa(end_pg) & PAGE_MASK;
/*
* If there are free pages between these,
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index 36960df..d238410 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -7,7 +7,7 @@ extern pmd_t *top_pmd;
static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt)
{
- return pmd_offset(pgd, virt);
+ return pmd_offset(pud_offset(pgd, virt), virt);
}
static inline pmd_t *pmd_off_k(unsigned long virt)
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index ff7b43b..6cf76b3 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -533,7 +533,7 @@ static void __init *early_alloc(unsigned long sz)
static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr, unsigned long prot)
{
if (pmd_none(*pmd)) {
- pte_t *pte = early_alloc(2 * PTRS_PER_PTE * sizeof(pte_t));
+ pte_t *pte = early_alloc(PTE_HWTABLE_OFF + PTE_HWTABLE_SIZE);
__pmd_populate(pmd, __pa(pte), prot);
}
BUG_ON(pmd_bad(*pmd));
@@ -551,11 +551,11 @@ static void __init alloc_init_pte(pmd_t *pmd, unsigned long addr,
} while (pte++, addr += PAGE_SIZE, addr != end);
}
-static void __init alloc_init_section(pgd_t *pgd, unsigned long addr,
+static void __init alloc_init_section(pud_t *pud, unsigned long addr,
unsigned long end, phys_addr_t phys,
const struct mem_type *type)
{
- pmd_t *pmd = pmd_offset(pgd, addr);
+ pmd_t *pmd = pmd_offset(pud, addr);
/*
* Try a section mapping - end, addr and phys must all be aligned
@@ -584,6 +584,19 @@ static void __init alloc_init_section(pgd_t *pgd, unsigned long addr,
}
}
+static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
+ unsigned long phys, const struct mem_type *type)
+{
+ pud_t *pud = pud_offset(pgd, addr);
+ unsigned long next;
+
+ do {
+ next = pud_addr_end(addr, end);
+ alloc_init_section(pud, addr, next, phys, type);
+ phys += next - addr;
+ } while (pud++, addr = next, addr != end);
+}
+
static void __init create_36bit_mapping(struct map_desc *md,
const struct mem_type *type)
{
@@ -592,13 +605,13 @@ static void __init create_36bit_mapping(struct map_desc *md,
pgd_t *pgd;
addr = md->virtual;
- phys = (unsigned long)__pfn_to_phys(md->pfn);
+ phys = __pfn_to_phys(md->pfn);
length = PAGE_ALIGN(md->length);
if (!(cpu_architecture() >= CPU_ARCH_ARMv6 || cpu_is_xsc3())) {
printk(KERN_ERR "MM: CPU does not support supersection "
"mapping for 0x%08llx at 0x%08lx\n",
- __pfn_to_phys((u64)md->pfn), addr);
+ (long long)__pfn_to_phys((u64)md->pfn), addr);
return;
}
@@ -611,14 +624,14 @@ static void __init create_36bit_mapping(struct map_desc *md,
if (type->domain) {
printk(KERN_ERR "MM: invalid domain in supersection "
"mapping for 0x%08llx at 0x%08lx\n",
- __pfn_to_phys((u64)md->pfn), addr);
+ (long long)__pfn_to_phys((u64)md->pfn), addr);
return;
}
if ((addr | length | __pfn_to_phys(md->pfn)) & ~SUPERSECTION_MASK) {
- printk(KERN_ERR "MM: cannot create mapping for "
- "0x%08llx at 0x%08lx invalid alignment\n",
- __pfn_to_phys((u64)md->pfn), addr);
+ printk(KERN_ERR "MM: cannot create mapping for 0x%08llx"
+ " at 0x%08lx invalid alignment\n",
+ (long long)__pfn_to_phys((u64)md->pfn), addr);
return;
}
@@ -631,7 +644,8 @@ static void __init create_36bit_mapping(struct map_desc *md,
pgd = pgd_offset_k(addr);
end = addr + length;
do {
- pmd_t *pmd = pmd_offset(pgd, addr);
+ pud_t *pud = pud_offset(pgd, addr);
+ pmd_t *pmd = pmd_offset(pud, addr);
int i;
for (i = 0; i < 16; i++)
@@ -652,22 +666,23 @@ static void __init create_36bit_mapping(struct map_desc *md,
*/
static void __init create_mapping(struct map_desc *md)
{
- unsigned long phys, addr, length, end;
+ unsigned long addr, length, end;
+ phys_addr_t phys;
const struct mem_type *type;
pgd_t *pgd;
if (md->virtual != vectors_base() && md->virtual < TASK_SIZE) {
- printk(KERN_WARNING "BUG: not creating mapping for "
- "0x%08llx at 0x%08lx in user region\n",
- __pfn_to_phys((u64)md->pfn), md->virtual);
+ printk(KERN_WARNING "BUG: not creating mapping for 0x%08llx"
+ " at 0x%08lx in user region\n",
+ (long long)__pfn_to_phys((u64)md->pfn), md->virtual);
return;
}
if ((md->type == MT_DEVICE || md->type == MT_ROM) &&
md->virtual >= PAGE_OFFSET && md->virtual < VMALLOC_END) {
- printk(KERN_WARNING "BUG: mapping for 0x%08llx at 0x%08lx "
- "overlaps vmalloc space\n",
- __pfn_to_phys((u64)md->pfn), md->virtual);
+ printk(KERN_WARNING "BUG: mapping for 0x%08llx"
+ " at 0x%08lx overlaps vmalloc space\n",
+ (long long)__pfn_to_phys((u64)md->pfn), md->virtual);
}
type = &mem_types[md->type];
@@ -681,13 +696,13 @@ static void __init create_mapping(struct map_desc *md)
}
addr = md->virtual & PAGE_MASK;
- phys = (unsigned long)__pfn_to_phys(md->pfn);
+ phys = __pfn_to_phys(md->pfn);
length = PAGE_ALIGN(md->length + (md->virtual & ~PAGE_MASK));
if (type->prot_l1 == 0 && ((addr | phys | length) & ~SECTION_MASK)) {
- printk(KERN_WARNING "BUG: map for 0x%08lx at 0x%08lx can not "
+ printk(KERN_WARNING "BUG: map for 0x%08llx at 0x%08lx can not "
"be mapped using pages, ignoring.\n",
- __pfn_to_phys(md->pfn), addr);
+ (long long)__pfn_to_phys(md->pfn), addr);
return;
}
@@ -696,7 +711,7 @@ static void __init create_mapping(struct map_desc *md)
do {
unsigned long next = pgd_addr_end(addr, end);
- alloc_init_section(pgd, addr, next, phys, type);
+ alloc_init_pud(pgd, addr, next, phys, type);
phys += next - addr;
addr = next;
@@ -794,9 +809,10 @@ static void __init sanity_check_meminfo(void)
*/
if (__va(bank->start) >= vmalloc_min ||
__va(bank->start) < (void *)PAGE_OFFSET) {
- printk(KERN_NOTICE "Ignoring RAM at %.8lx-%.8lx "
+ printk(KERN_NOTICE "Ignoring RAM at %.8llx-%.8llx "
"(vmalloc region overlap).\n",
- bank->start, bank->start + bank->size - 1);
+ (unsigned long long)bank->start,
+ (unsigned long long)bank->start + bank->size - 1);
continue;
}
@@ -807,10 +823,11 @@ static void __init sanity_check_meminfo(void)
if (__va(bank->start + bank->size) > vmalloc_min ||
__va(bank->start + bank->size) < __va(bank->start)) {
unsigned long newsize = vmalloc_min - __va(bank->start);
- printk(KERN_NOTICE "Truncating RAM at %.8lx-%.8lx "
- "to -%.8lx (vmalloc region overlap).\n",
- bank->start, bank->start + bank->size - 1,
- bank->start + newsize - 1);
+ printk(KERN_NOTICE "Truncating RAM at %.8llx-%.8llx "
+ "to -%.8llx (vmalloc region overlap).\n",
+ (unsigned long long)bank->start,
+ (unsigned long long)bank->start + bank->size - 1,
+ (unsigned long long)bank->start + newsize - 1);
bank->size = newsize;
}
#endif
diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c
index 709244c..b2027c1 100644
--- a/arch/arm/mm/pgd.c
+++ b/arch/arm/mm/pgd.c
@@ -23,6 +23,7 @@
pgd_t *pgd_alloc(struct mm_struct *mm)
{
pgd_t *new_pgd, *init_pgd;
+ pud_t *new_pud, *init_pud;
pmd_t *new_pmd, *init_pmd;
pte_t *new_pte, *init_pte;
@@ -46,7 +47,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
* On ARM, first page must always be allocated since it
* contains the machine vectors.
*/
- new_pmd = pmd_alloc(mm, new_pgd, 0);
+ new_pud = pud_alloc(mm, new_pgd, 0);
+ if (!new_pud)
+ goto no_pud;
+
+ new_pmd = pmd_alloc(mm, new_pud, 0);
if (!new_pmd)
goto no_pmd;
@@ -54,7 +59,8 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
if (!new_pte)
goto no_pte;
- init_pmd = pmd_offset(init_pgd, 0);
+ init_pud = pud_offset(init_pgd, 0);
+ init_pmd = pmd_offset(init_pud, 0);
init_pte = pte_offset_map(init_pmd, 0);
set_pte_ext(new_pte, *init_pte, 0);
pte_unmap(init_pte);
@@ -66,6 +72,8 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
no_pte:
pmd_free(mm, new_pmd);
no_pmd:
+ pud_free(mm, new_pud);
+no_pud:
free_pages((unsigned long)new_pgd, 2);
no_pgd:
return NULL;
@@ -74,6 +82,7 @@ no_pgd:
void pgd_free(struct mm_struct *mm, pgd_t *pgd_base)
{
pgd_t *pgd;
+ pud_t *pud;
pmd_t *pmd;
pgtable_t pte;
@@ -84,7 +93,11 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd_base)
if (pgd_none_or_clear_bad(pgd))
goto no_pgd;
- pmd = pmd_offset(pgd, 0);
+ pud = pud_offset(pgd, 0);
+ if (pud_none_or_clear_bad(pud))
+ goto no_pud;
+
+ pmd = pmd_offset(pud, 0);
if (pmd_none_or_clear_bad(pmd))
goto no_pmd;
@@ -92,8 +105,11 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd_base)
pmd_clear(pmd);
pte_free(mm, pte);
no_pmd:
- pgd_clear(pgd);
+ pud_clear(pud);
pmd_free(mm, pmd);
+no_pud:
+ pgd_clear(pgd);
+ pud_free(mm, pud);
no_pgd:
free_pages((unsigned long) pgd_base, 2);
}
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