[ARM] 5389/1: Make sure the pmd entries are visible by the secondary CPU

The __cpu_up() function in arch/arm/kernel/smp.c sets the pmd entries
without flushing or cleaning them.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 55fa7ff96a3e..7801aac3c043 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -93,6 +93,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
         pmd = pmd_offset(pgd + pgd_index(PHYS_OFFSET), PHYS_OFFSET);
         *pmd = __pmd((PHYS_OFFSET & PGDIR_MASK) |
                      PMD_TYPE_SECT | PMD_SECT_AP_WRITE);
+        flush_pmd_entry(pmd);
 
         /*
          * We need to tell the secondary core where to find
@@ -130,6 +131,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
         secondary_data.pgdir = 0;
 
         *pmd = __pmd(0);
+        clean_pmd_entry(pmd);
         pgd_free(&init_mm, pgd);
 
         if (ret) {