Merge commit 'origin/master' into next

2 files changed, 21 insertions, 5 deletions

diff --git a/arch/powerpc/mm/tlb_hash64.c b/arch/powerpc/mm/tlb_hash64.c
index 282d9306361..1ec06576f61 100644
--- a/arch/powerpc/mm/tlb_hash64.c
+++ b/arch/powerpc/mm/tlb_hash64.c
@@ -63,15 +63,21 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
         if (huge) {
 #ifdef CONFIG_HUGETLB_PAGE
                 psize = get_slice_psize(mm, addr);
+                /* Mask the address for the correct page size */
+                addr &= ~((1UL << mmu_psize_defs[psize].shift) - 1);
 #else
                 BUG();
                 psize = pte_pagesize_index(mm, addr, pte); /* shutup gcc */
 #endif
-        } else
+        } else {
                 psize = pte_pagesize_index(mm, addr, pte);
+                /* Mask the address for the standard page size.  If we
+                 * have a 64k page kernel, but the hardware does not
+                 * support 64k pages, this might be different from the
+                 * hardware page size encoded in the slice table. */
+                addr &= PAGE_MASK;
+        }
 
-        /* Mask the address for the correct page size */
-        addr &= ~((1UL << mmu_psize_defs[psize].shift) - 1);
 
         /* Build full vaddr */
         if (!is_kernel_addr(addr)) {
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index e9a52ec05a0..63eaa8a220c 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -784,9 +784,13 @@ static void xics_set_cpu_priority(unsigned char cppr)
 {
         struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr);
 
-        BUG_ON(os_cppr->index != 0);
+        /*
+         * we only really want to set the priority when there's
+         * just one cppr value on the stack
+         */
+        WARN_ON(os_cppr->index != 0);
 
-        os_cppr->stack[os_cppr->index] = cppr;
+        os_cppr->stack[0] = cppr;
 
         if (firmware_has_feature(FW_FEATURE_LPAR))
                 lpar_cppr_info(cppr);
@@ -821,8 +825,14 @@ void xics_setup_cpu(void)
 
 void xics_teardown_cpu(void)
 {
+        struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr);
         int cpu = smp_processor_id();
 
+        /*
+         * we have to reset the cppr index to 0 because we're
+         * not going to return from the IPI
+         */
+        os_cppr->index = 0;
         xics_set_cpu_priority(0);
 
         /* Clear any pending IPI request */