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-rw-r--r--arch/powerpc/mm/fault.c30
-rw-r--r--arch/powerpc/mm/hash_utils_64.c7
-rw-r--r--arch/powerpc/mm/mem.c6
-rw-r--r--arch/powerpc/mm/numa.c2
-rw-r--r--arch/powerpc/mm/pgtable_32.c6
-rw-r--r--arch/powerpc/mm/stab.c2
6 files changed, 30 insertions, 23 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index ec4adcb4bc28..5aea0909a5ec 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -267,25 +267,29 @@ good_area:
#endif
#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
pte_t *ptep;
+ pmd_t *pmdp;
/* Since 4xx/Book-E supports per-page execute permission,
* we lazily flush dcache to icache. */
ptep = NULL;
- if (get_pteptr(mm, address, &ptep) && pte_present(*ptep)) {
- struct page *page = pte_page(*ptep);
-
- if (! test_bit(PG_arch_1, &page->flags)) {
- flush_dcache_icache_page(page);
- set_bit(PG_arch_1, &page->flags);
+ if (get_pteptr(mm, address, &ptep, &pmdp)) {
+ spinlock_t *ptl = pte_lockptr(mm, pmdp);
+ spin_lock(ptl);
+ if (pte_present(*ptep)) {
+ struct page *page = pte_page(*ptep);
+
+ if (!test_bit(PG_arch_1, &page->flags)) {
+ flush_dcache_icache_page(page);
+ set_bit(PG_arch_1, &page->flags);
+ }
+ pte_update(ptep, 0, _PAGE_HWEXEC);
+ _tlbie(address);
+ pte_unmap_unlock(ptep, ptl);
+ up_read(&mm->mmap_sem);
+ return 0;
}
- pte_update(ptep, 0, _PAGE_HWEXEC);
- _tlbie(address);
- pte_unmap(ptep);
- up_read(&mm->mmap_sem);
- return 0;
+ pte_unmap_unlock(ptep, ptl);
}
- if (ptep != NULL)
- pte_unmap(ptep);
#endif
/* a write */
} else if (is_write) {
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 89b35c181314..c006d9039633 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -167,7 +167,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
* normal insert callback here.
*/
#ifdef CONFIG_PPC_ISERIES
- if (_machine == PLATFORM_ISERIES_LPAR)
+ if (machine_is(iseries))
ret = iSeries_hpte_insert(hpteg, va,
paddr,
tmp_mode,
@@ -176,7 +176,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
else
#endif
#ifdef CONFIG_PPC_PSERIES
- if (_machine & PLATFORM_LPAR)
+ if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR))
ret = pSeries_lpar_hpte_insert(hpteg, va,
paddr,
tmp_mode,
@@ -295,8 +295,7 @@ static void __init htab_init_page_sizes(void)
* Not in the device-tree, let's fallback on known size
* list for 16M capable GP & GR
*/
- if ((_machine != PLATFORM_ISERIES_LPAR) &&
- cpu_has_feature(CPU_FTR_16M_PAGE))
+ if (cpu_has_feature(CPU_FTR_16M_PAGE) && !machine_is(iseries))
memcpy(mmu_psize_defs, mmu_psize_defaults_gp,
sizeof(mmu_psize_defaults_gp));
found:
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index badac10d700c..741dd8802d49 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -195,7 +195,7 @@ void show_mem(void)
printk("Mem-info:\n");
show_free_areas();
printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
- for_each_pgdat(pgdat) {
+ for_each_online_pgdat(pgdat) {
unsigned long flags;
pgdat_resize_lock(pgdat, &flags);
for (i = 0; i < pgdat->node_spanned_pages; i++) {
@@ -342,7 +342,7 @@ void __init mem_init(void)
#ifdef CONFIG_NEED_MULTIPLE_NODES
for_each_online_node(nid) {
if (NODE_DATA(nid)->node_spanned_pages != 0) {
- printk("freeing bootmem node %x\n", nid);
+ printk("freeing bootmem node %d\n", nid);
totalram_pages +=
free_all_bootmem_node(NODE_DATA(nid));
}
@@ -351,7 +351,7 @@ void __init mem_init(void)
max_mapnr = max_pfn;
totalram_pages += free_all_bootmem();
#endif
- for_each_pgdat(pgdat) {
+ for_each_online_pgdat(pgdat) {
for (i = 0; i < pgdat->node_spanned_pages; i++) {
if (!pfn_valid(pgdat->node_start_pfn + i))
continue;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index e89b22aa539e..0a335f34974c 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -756,6 +756,7 @@ int hot_add_scn_to_nid(unsigned long scn_addr)
struct device_node *memory = NULL;
nodemask_t nodes;
int default_nid = any_online_node(NODE_MASK_ALL);
+ int nid;
if (!numa_enabled || (min_common_depth < 0))
return default_nid;
@@ -790,6 +791,7 @@ ha_new_range:
goto ha_new_range;
}
BUG(); /* section address should be found above */
+ return 0;
/* Temporary code to ensure that returned node is not empty */
got_nid:
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index d296eb6b4545..90628601fac7 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -372,7 +372,7 @@ void __init io_block_mapping(unsigned long virt, phys_addr_t phys,
* the PTE pointer is unmodified if PTE is not found.
*/
int
-get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep)
+get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep, pmd_t **pmdp)
{
pgd_t *pgd;
pmd_t *pmd;
@@ -387,6 +387,8 @@ get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep)
if (pte) {
retval = 1;
*ptep = pte;
+ if (pmdp)
+ *pmdp = pmd;
/* XXX caller needs to do pte_unmap, yuck */
}
}
@@ -424,7 +426,7 @@ unsigned long iopa(unsigned long addr)
mm = &init_mm;
pa = 0;
- if (get_pteptr(mm, addr, &pte)) {
+ if (get_pteptr(mm, addr, &pte, NULL)) {
pa = (pte_val(*pte) & PAGE_MASK) | (addr & ~PAGE_MASK);
pte_unmap(pte);
}
diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index 91d25fb27f89..4a9291d9fef8 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -239,7 +239,7 @@ void stabs_alloc(void)
if (cpu_has_feature(CPU_FTR_SLB))
return;
- for_each_cpu(cpu) {
+ for_each_possible_cpu(cpu) {
unsigned long newstab;
if (cpu == 0)
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