ARM: 7660/1: tlb: add branch predictor maintenance operations

[firefly-linux-kernel-4.4.55.git] / arch / arm / kernel / smp_tlb.c

diff --git a/arch/arm/kernel/smp_tlb.c b/arch/arm/kernel/smp_tlb.c
index 02c5d2ce23bf121f17479bba2b52460419481930..bd0300531399e5eeb066a45f3c29b0d897c23b42 100644 (file)
--- a/arch/arm/kernel/smp_tlb.c
+++ b/arch/arm/kernel/smp_tlb.c
@@ -64,6 +64,11 @@ static inline void ipi_flush_tlb_kernel_range(void *arg)
        local_flush_tlb_kernel_range(ta->ta_start, ta->ta_end);
 }
 
+static inline void ipi_flush_bp_all(void *ignored)
+{
+       local_flush_bp_all();
+}
+
 void flush_tlb_all(void)
 {
        if (tlb_ops_need_broadcast())
@@ -127,3 +132,10 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
                local_flush_tlb_kernel_range(start, end);
 }
 
+void flush_bp_all(void)
+{
+       if (tlb_ops_need_broadcast())
+               on_each_cpu(ipi_flush_bp_all, NULL, 1);
+       else
+               local_flush_bp_all();
+}