Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (43 commits)
  [POWERPC] Use little-endian bit from firmware ibm,pa-features property
  [POWERPC] Make sure smp_processor_id works very early in boot
  [POWERPC] U4 DART improvements
  [POWERPC] todc: add support for Time-Of-Day-Clock
  [POWERPC] Make lparcfg.c work when both iseries and pseries are selected
  [POWERPC] Fix idr locking in init_new_context
  [POWERPC] mpc7448hpc2 (taiga) board config file
  [POWERPC] Add tsi108 pci and platform device data register function
  [POWERPC] Add general support for mpc7448hpc2 (Taiga) platform
  [POWERPC] Correct the MAX_CONTEXT definition
  powerpc: minor cleanups for mpc86xx
  [POWERPC] Make sure we select CONFIG_NEW_LEDS if ADB_PMU_LED is set
  [POWERPC] Simplify the code defining the 64-bit CPU features
  [POWERPC] powerpc: kconfig warning fix
  [POWERPC] Consolidate some of kernel/misc*.S
  [POWERPC] Remove unused function call_with_mmu_off
  [POWERPC] update asm-powerpc/time.h
  [POWERPC] Clean up it_lp_queue.h
  [POWERPC] Skip the "copy down" of the kernel if it is already at zero.
  [POWERPC] Add the use of the firmware soft-reset-nmi to kdump.
  ...

3 files changed, 39 insertions, 8 deletions

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index d03a8b078f9..8cfb5706790 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -92,6 +92,15 @@ static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
                 *(tcep++) = 0;
 }
 
+static unsigned long tce_get_pseries(struct iommu_table *tbl, long index)
+{
+        u64 *tcep;
+
+        index <<= TCE_PAGE_FACTOR;
+        tcep = ((u64 *)tbl->it_base) + index;
+
+        return *tcep;
+}
 
 static void tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
                                 long npages, unsigned long uaddr,
@@ -235,6 +244,25 @@ static void tce_freemulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long n
         }
 }
 
+static unsigned long tce_get_pSeriesLP(struct iommu_table *tbl, long tcenum)
+{
+        u64 rc;
+        unsigned long tce_ret;
+
+        tcenum <<= TCE_PAGE_FACTOR;
+        rc = plpar_tce_get((u64)tbl->it_index, (u64)tcenum << 12, &tce_ret);
+
+        if (rc && printk_ratelimit()) {
+                printk("tce_get_pSeriesLP: plpar_tce_get failed. rc=%ld\n",
+                        rc);
+                printk("\tindex   = 0x%lx\n", (u64)tbl->it_index);
+                printk("\ttcenum  = 0x%lx\n", (u64)tcenum);
+                show_stack(current, (unsigned long *)__get_SP());
+        }
+
+        return tce_ret;
+}
+
 static void iommu_table_setparms(struct pci_controller *phb,
                                  struct device_node *dn,
                                  struct iommu_table *tbl)
@@ -254,7 +282,10 @@ static void iommu_table_setparms(struct pci_controller *phb,
         }
 
         tbl->it_base = (unsigned long)__va(*basep);
+
+#ifndef CONFIG_CRASH_DUMP
         memset((void *)tbl->it_base, 0, *sizep);
+#endif
 
         tbl->it_busno = phb->bus->number;
 
@@ -560,11 +591,13 @@ void iommu_init_early_pSeries(void)
                         ppc_md.tce_build = tce_build_pSeriesLP;
                         ppc_md.tce_free  = tce_free_pSeriesLP;
                 }
+                ppc_md.tce_get   = tce_get_pSeriesLP;
                 ppc_md.iommu_bus_setup = iommu_bus_setup_pSeriesLP;
                 ppc_md.iommu_dev_setup = iommu_dev_setup_pSeriesLP;
         } else {
                 ppc_md.tce_build = tce_build_pSeries;
                 ppc_md.tce_free  = tce_free_pSeries;
+                ppc_md.tce_get   = tce_get_pseries;
                 ppc_md.iommu_bus_setup = iommu_bus_setup_pSeries;
                 ppc_md.iommu_dev_setup = iommu_dev_setup_pSeries;
         }
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 634b7d06d3c..27480705996 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -513,7 +513,7 @@ void pSeries_lpar_flush_hash_range(unsigned long number, int local)
                 spin_unlock_irqrestore(&pSeries_lpar_tlbie_lock, flags);
 }
 
-void hpte_init_lpar(void)
+void __init hpte_init_lpar(void)
 {
         ppc_md.hpte_invalidate  = pSeries_lpar_hpte_invalidate;
         ppc_md.hpte_updatepp    = pSeries_lpar_hpte_updatepp;
@@ -522,6 +522,4 @@ void hpte_init_lpar(void)
         ppc_md.hpte_remove      = pSeries_lpar_hpte_remove;
         ppc_md.flush_hash_range = pSeries_lpar_flush_hash_range;
         ppc_md.hpte_clear_all   = pSeries_lpar_hptab_clear;
-
-        htab_finish_init();
 }
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 1e28518c612..b3197ff156c 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -322,11 +322,6 @@ static void __init pSeries_init_early(void)
         DBG(" -> pSeries_init_early()\n");
 
         fw_feature_init();
-        
-        if (firmware_has_feature(FW_FEATURE_LPAR))
-                hpte_init_lpar();
-        else
-                hpte_init_native();
 
         if (firmware_has_feature(FW_FEATURE_LPAR))
                 find_udbg_vterm();
@@ -384,6 +379,11 @@ static int __init pSeries_probe_hypertas(unsigned long node,
         if (of_get_flat_dt_prop(node, "ibm,hypertas-functions", NULL) != NULL)
                 powerpc_firmware_features |= FW_FEATURE_LPAR;
 
+        if (firmware_has_feature(FW_FEATURE_LPAR))
+                hpte_init_lpar();
+        else
+                hpte_init_native();
+
         return 1;
 }