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, 46 insertions, 65 deletions

diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index a0f3cbd00d3..c90f124f3c7 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -520,7 +520,7 @@ static inline int tlb_batching_enabled(void)
 }
 #endif
 
-void hpte_init_native(void)
+void __init hpte_init_native(void)
 {
         ppc_md.hpte_invalidate  = native_hpte_invalidate;
         ppc_md.hpte_updatepp    = native_hpte_updatepp;
@@ -530,5 +530,4 @@ void hpte_init_native(void)
         ppc_md.hpte_clear_all   = native_hpte_clear;
         if (tlb_batching_enabled())
                 ppc_md.flush_hash_range = native_flush_hash_range;
-        htab_finish_init();
 }
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index d03fd2b4445..3cc6d68f711 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -167,34 +167,12 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
                 hash = hpt_hash(va, shift);
                 hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
 
-                /* The crap below can be cleaned once ppd_md.probe() can
-                 * set up the hash callbacks, thus we can just used the
-                 * normal insert callback here.
-                 */
-#ifdef CONFIG_PPC_ISERIES
-                if (machine_is(iseries))
-                        ret = iSeries_hpte_insert(hpteg, va,
-                                                  paddr,
-                                                  tmp_mode,
-                                                  HPTE_V_BOLTED,
-                                                  psize);
-                else
-#endif
-#ifdef CONFIG_PPC_PSERIES
-                if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR))
-                        ret = pSeries_lpar_hpte_insert(hpteg, va,
-                                                       paddr,
-                                                       tmp_mode,
-                                                       HPTE_V_BOLTED,
-                                                       psize);
-                else
-#endif
-#ifdef CONFIG_PPC_MULTIPLATFORM
-                        ret = native_hpte_insert(hpteg, va,
-                                                 paddr,
-                                                 tmp_mode, HPTE_V_BOLTED,
-                                                 psize);
-#endif
+                DBG("htab_bolt_mapping: calling %p\n", ppc_md.hpte_insert);
+
+                BUG_ON(!ppc_md.hpte_insert);
+                ret = ppc_md.hpte_insert(hpteg, va, paddr,
+                                tmp_mode, HPTE_V_BOLTED, psize);
+
                 if (ret < 0)
                         break;
         }
@@ -413,6 +391,41 @@ void create_section_mapping(unsigned long start, unsigned long end)
 }
 #endif /* CONFIG_MEMORY_HOTPLUG */
 
+static inline void make_bl(unsigned int *insn_addr, void *func)
+{
+        unsigned long funcp = *((unsigned long *)func);
+        int offset = funcp - (unsigned long)insn_addr;
+
+        *insn_addr = (unsigned int)(0x48000001 | (offset & 0x03fffffc));
+        flush_icache_range((unsigned long)insn_addr, 4+
+                           (unsigned long)insn_addr);
+}
+
+static void __init htab_finish_init(void)
+{
+        extern unsigned int *htab_call_hpte_insert1;
+        extern unsigned int *htab_call_hpte_insert2;
+        extern unsigned int *htab_call_hpte_remove;
+        extern unsigned int *htab_call_hpte_updatepp;
+
+#ifdef CONFIG_PPC_64K_PAGES
+        extern unsigned int *ht64_call_hpte_insert1;
+        extern unsigned int *ht64_call_hpte_insert2;
+        extern unsigned int *ht64_call_hpte_remove;
+        extern unsigned int *ht64_call_hpte_updatepp;
+
+        make_bl(ht64_call_hpte_insert1, ppc_md.hpte_insert);
+        make_bl(ht64_call_hpte_insert2, ppc_md.hpte_insert);
+        make_bl(ht64_call_hpte_remove, ppc_md.hpte_remove);
+        make_bl(ht64_call_hpte_updatepp, ppc_md.hpte_updatepp);
+#endif /* CONFIG_PPC_64K_PAGES */
+
+        make_bl(htab_call_hpte_insert1, ppc_md.hpte_insert);
+        make_bl(htab_call_hpte_insert2, ppc_md.hpte_insert);
+        make_bl(htab_call_hpte_remove, ppc_md.hpte_remove);
+        make_bl(htab_call_hpte_updatepp, ppc_md.hpte_updatepp);
+}
+
 void __init htab_initialize(void)
 {
         unsigned long table;
@@ -525,6 +538,8 @@ void __init htab_initialize(void)
                                          mmu_linear_psize));
         }
 
+        htab_finish_init();
+
         DBG(" <- htab_initialize()\n");
 }
 #undef KB
@@ -787,16 +802,6 @@ void flush_hash_range(unsigned long number, int local)
         }
 }
 
-static inline void make_bl(unsigned int *insn_addr, void *func)
-{
-        unsigned long funcp = *((unsigned long *)func);
-        int offset = funcp - (unsigned long)insn_addr;
-
-        *insn_addr = (unsigned int)(0x48000001 | (offset & 0x03fffffc));
-        flush_icache_range((unsigned long)insn_addr, 4+
-                           (unsigned long)insn_addr);
-}
-
 /*
  * low_hash_fault is called when we the low level hash code failed
  * to instert a PTE due to an hypervisor error
@@ -815,28 +820,3 @@ void low_hash_fault(struct pt_regs *regs, unsigned long address)
         }
         bad_page_fault(regs, address, SIGBUS);
 }
-
-void __init htab_finish_init(void)
-{
-        extern unsigned int *htab_call_hpte_insert1;
-        extern unsigned int *htab_call_hpte_insert2;
-        extern unsigned int *htab_call_hpte_remove;
-        extern unsigned int *htab_call_hpte_updatepp;
-
-#ifdef CONFIG_PPC_64K_PAGES
-        extern unsigned int *ht64_call_hpte_insert1;
-        extern unsigned int *ht64_call_hpte_insert2;
-        extern unsigned int *ht64_call_hpte_remove;
-        extern unsigned int *ht64_call_hpte_updatepp;
-
-        make_bl(ht64_call_hpte_insert1, ppc_md.hpte_insert);
-        make_bl(ht64_call_hpte_insert2, ppc_md.hpte_insert);
-        make_bl(ht64_call_hpte_remove, ppc_md.hpte_remove);
-        make_bl(ht64_call_hpte_updatepp, ppc_md.hpte_updatepp);
-#endif /* CONFIG_PPC_64K_PAGES */
-
-        make_bl(htab_call_hpte_insert1, ppc_md.hpte_insert);
-        make_bl(htab_call_hpte_insert2, ppc_md.hpte_insert);
-        make_bl(htab_call_hpte_remove, ppc_md.hpte_remove);
-        make_bl(htab_call_hpte_updatepp, ppc_md.hpte_updatepp);
-}
diff --git a/arch/powerpc/mm/mmu_context_64.c b/arch/powerpc/mm/mmu_context_64.c
index 65d18dca266..e2051efa09c 100644
--- a/arch/powerpc/mm/mmu_context_64.c
+++ b/arch/powerpc/mm/mmu_context_64.c
@@ -44,7 +44,9 @@ again:
                 return err;
 
         if (index > MAX_CONTEXT) {
+                spin_lock(&mmu_context_lock);
                 idr_remove(&mmu_context_idr, index);
+                spin_unlock(&mmu_context_lock);
                 return -ENOMEM;
         }