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.
  ...

5 files changed, 24 insertions, 18 deletions

diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 352bbbacde9a..0c8c7b6ab897 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -6,6 +6,7 @@ config SPU_FS
         default m
         depends on PPC_CELL
         select SPU_BASE
+        select MEMORY_HOTPLUG
         help
           The SPU file system is used to access Synergistic Processing
           Units on machines implementing the Broadband Processor
@@ -18,7 +19,6 @@ config SPU_BASE
 config SPUFS_MMAP
         bool
         depends on SPU_FS && SPARSEMEM
-        select MEMORY_HOTPLUG
         default y
 
 config CBE_RAS
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 3d1831d331e5..00d112f92272 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -125,8 +125,6 @@ static void __init cell_init_early(void)
 {
         DBG(" -> cell_init_early()\n");
 
-        hpte_init_native();
-
         cell_init_iommu();
 
         ppc64_interrupt_controller = IC_CELL_PIC;
@@ -139,11 +137,17 @@ static int __init cell_probe(void)
 {
         unsigned long root = of_get_flat_dt_root();
 
-        if (of_flat_dt_is_compatible(root, "IBM,CBEA") ||
-            of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
-                return 1;
+        if (!of_flat_dt_is_compatible(root, "IBM,CBEA") &&
+            !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
+                return 0;
+
+#ifdef CONFIG_UDBG_RTAS_CONSOLE
+        udbg_init_rtas_console();
+#endif
+
+        hpte_init_native();
 
-        return 0;
+        return 1;
 }
 
 /*
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index db82f503ba2c..b306723abb87 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -168,12 +168,12 @@ spu_irq_class_0_bottom(struct spu *spu)
 
         stat &= mask;
 
-        if (stat & 1) /* invalid MFC DMA */
-                __spu_trap_invalid_dma(spu);
-
-        if (stat & 2) /* invalid DMA alignment */
+        if (stat & 1) /* invalid DMA alignment */
                 __spu_trap_dma_align(spu);
 
+        if (stat & 2) /* invalid MFC DMA */
+                __spu_trap_invalid_dma(spu);
+
         if (stat & 4) /* error on SPU */
                 __spu_trap_error(spu);
 
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 7854a380dce2..58e794f9da1b 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -204,7 +204,7 @@ static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma)
 
         vma->vm_flags |= VM_RESERVED;
         vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-                                     | _PAGE_NO_CACHE);
+                                     | _PAGE_NO_CACHE | _PAGE_GUARDED);
 
         vma->vm_ops = &spufs_cntl_mmap_vmops;
         return 0;
@@ -675,7 +675,7 @@ static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma)
 
         vma->vm_flags |= VM_RESERVED;
         vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-                                     | _PAGE_NO_CACHE);
+                                     | _PAGE_NO_CACHE | _PAGE_GUARDED);
 
         vma->vm_ops = &spufs_signal1_mmap_vmops;
         return 0;
@@ -762,7 +762,7 @@ static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma)
         /* FIXME: */
         vma->vm_flags |= VM_RESERVED;
         vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-                                     | _PAGE_NO_CACHE);
+                                     | _PAGE_NO_CACHE | _PAGE_GUARDED);
 
         vma->vm_ops = &spufs_signal2_mmap_vmops;
         return 0;
@@ -850,7 +850,7 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
 
         vma->vm_flags |= VM_RESERVED;
         vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-                                     | _PAGE_NO_CACHE);
+                                     | _PAGE_NO_CACHE | _PAGE_GUARDED);
 
         vma->vm_ops = &spufs_mss_mmap_vmops;
         return 0;
@@ -899,7 +899,7 @@ static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma)
 
         vma->vm_flags |= VM_RESERVED;
         vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
-                                     | _PAGE_NO_CACHE);
+                                     | _PAGE_NO_CACHE | _PAGE_GUARDED);
 
         vma->vm_ops = &spufs_mfc_mmap_vmops;
         return 0;
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index a656d810a44a..c7fea2cca534 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -464,7 +464,8 @@ static inline void wait_purge_complete(struct spu_state *csa, struct spu *spu)
          *     Poll MFC_CNTL[Ps] until value '11' is read
          *     (purge complete).
          */
-        POLL_WHILE_FALSE(in_be64(&priv2->mfc_control_RW) &
+        POLL_WHILE_FALSE((in_be64(&priv2->mfc_control_RW) &
+                         MFC_CNTL_PURGE_DMA_STATUS_MASK) ==
                          MFC_CNTL_PURGE_DMA_COMPLETE);
 }
 
@@ -1028,7 +1029,8 @@ static inline void wait_suspend_mfc_complete(struct spu_state *csa,
          * Restore, Step 47.
          *     Poll MFC_CNTL[Ss] until 11 is returned.
          */
-        POLL_WHILE_FALSE(in_be64(&priv2->mfc_control_RW) &
+        POLL_WHILE_FALSE((in_be64(&priv2->mfc_control_RW) &
+                         MFC_CNTL_SUSPEND_DMA_STATUS_MASK) ==
                          MFC_CNTL_SUSPEND_COMPLETE);
 }