6 files changed, 40 insertions, 22 deletions

diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index f0c47dab0903..04f7df39ffbb 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -182,8 +182,8 @@ static struct page * vdso_vma_nopage(struct vm_area_struct * vma,
         unsigned long offset = address - vma->vm_start;
         struct page *pg;
 #ifdef CONFIG_PPC64
-        void *vbase = test_thread_flag(TIF_32BIT) ?
-                vdso32_kbase : vdso64_kbase;
+        void *vbase = (vma->vm_mm->task_size > TASK_SIZE_USER32) ?
+                vdso64_kbase : vdso32_kbase;
 #else
         void *vbase = vdso32_kbase;
 #endif
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
index ccaeda5136d1..4ee871f1cadb 100644
--- a/arch/powerpc/kernel/vdso64/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso64/gettimeofday.S
@@ -225,9 +225,9 @@ V_FUNCTION_BEGIN(__do_get_xsec)
   .cfi_startproc
         /* check for update count & load values */
 1:      ld      r8,CFG_TB_UPDATE_COUNT(r3)
-        andi.   r0,r4,1                 /* pending update ? loop */
+        andi.   r0,r8,1                 /* pending update ? loop */
         bne-    1b
-        xor     r0,r4,r4                /* create dependency */
+        xor     r0,r8,r8                /* create dependency */
         add     r3,r3,r0
 
         /* Get TB & offset it */
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index b1f614c612dd..e9d589eefc14 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -169,7 +169,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
 #ifdef CONFIG_PPC_ISERIES
                 if (_machine == PLATFORM_ISERIES_LPAR)
                         ret = iSeries_hpte_insert(hpteg, va,
-                                                  virt_to_abs(paddr),
+                                                  __pa(vaddr),
                                                   tmp_mode,
                                                   HPTE_V_BOLTED,
                                                   psize);
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 83578313ee7e..2ab9dcdfb415 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -893,6 +893,20 @@ void eeh_add_device_tree_early(struct device_node *dn)
 }
 EXPORT_SYMBOL_GPL(eeh_add_device_tree_early);
 
+void eeh_add_device_tree_late(struct pci_bus *bus)
+{
+        struct pci_dev *dev;
+
+        list_for_each_entry(dev, &bus->devices, bus_list) {
+                eeh_add_device_late(dev);
+                if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+                        struct pci_bus *subbus = dev->subordinate;
+                        if (subbus)
+                                eeh_add_device_tree_late(subbus);
+                }
+        }
+}
+
 /**
  * eeh_add_device_late - perform EEH initialization for the indicated pci device
  * @dev: pci device for which to set up EEH
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index e3cbba49fd6e..b811d5ff92fe 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -37,7 +37,7 @@
 
 static inline const char * pcid_name (struct pci_dev *pdev)
 {
-        if (pdev->dev.driver)
+        if (pdev && pdev->dev.driver)
                 return pdev->dev.driver->name;
         return "";
 }
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index bdaa8aabdaa6..f3bad900bbcf 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -106,6 +106,8 @@ pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
                         }
                 }
         }
+
+        eeh_add_device_tree_late(bus);
 }
 EXPORT_SYMBOL_GPL(pcibios_fixup_new_pci_devices);
 
@@ -114,7 +116,6 @@ pcibios_pci_config_bridge(struct pci_dev *dev)
 {
         u8 sec_busno;
         struct pci_bus *child_bus;
-        struct pci_dev *child_dev;
 
         /* Get busno of downstream bus */
         pci_read_config_byte(dev, PCI_SECONDARY_BUS, &sec_busno);
@@ -129,10 +130,6 @@ pcibios_pci_config_bridge(struct pci_dev *dev)
 
         pci_scan_child_bus(child_bus);
 
-        list_for_each_entry(child_dev, &child_bus->devices, bus_list) {
-                eeh_add_device_late(child_dev);
-        }
-
         /* Fixup new pci devices without touching bus struct */
         pcibios_fixup_new_pci_devices(child_bus, 0);
 
@@ -160,18 +157,25 @@ pcibios_add_pci_devices(struct pci_bus * bus)
 
         eeh_add_device_tree_early(dn);
 
-        /* pci_scan_slot should find all children */
-        slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
-        num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
-        if (num) {
-                pcibios_fixup_new_pci_devices(bus, 1);
-                pci_bus_add_devices(bus);
-        }
+        if (_machine == PLATFORM_PSERIES_LPAR) {
+                /* use ofdt-based probe */
+                of_scan_bus(dn, bus);
+                if (!list_empty(&bus->devices)) {
+                        pcibios_fixup_new_pci_devices(bus, 0);
+                        pci_bus_add_devices(bus);
+                }
+        } else {
+                /* use legacy probe */
+                slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
+                num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
+                if (num) {
+                        pcibios_fixup_new_pci_devices(bus, 1);
+                        pci_bus_add_devices(bus);
+                }
 
-        list_for_each_entry(dev, &bus->devices, bus_list) {
-                eeh_add_device_late (dev);
-                if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
-                        pcibios_pci_config_bridge(dev);
+                list_for_each_entry(dev, &bus->devices, bus_list)
+                        if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+                                pcibios_pci_config_bridge(dev);
         }
 }
 EXPORT_SYMBOL_GPL(pcibios_add_pci_devices);