[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>

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 55fa7ff96a3e7aaf654d30c64677b1a4d666ee4b..7801aac3c043f6354ec7fc0b82c909370e228a4c 100644 (file)
--- 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) {