Merge branch 'devel-stable' into for-next

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / arm / include / asm / smp_plat.h

diff --git a/arch/arm/include/asm/smp_plat.h b/arch/arm/include/asm/smp_plat.h
index e789832..6462a72 100644 (file)
--- a/arch/arm/include/asm/smp_plat.h
+++ b/arch/arm/include/asm/smp_plat.h
@@ -26,6 +26,9 @@ static inline bool is_smp(void)
 }
 
 /* all SMP configurations have the extended CPUID registers */
+#ifndef CONFIG_MMU
+#define tlb_ops_need_broadcast()       0
+#else
 static inline int tlb_ops_need_broadcast(void)
 {
        if (!is_smp())
@@ -33,6 +36,7 @@ static inline int tlb_ops_need_broadcast(void)
 
        return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 2;
 }
+#endif
 
 #if !defined(CONFIG_SMP) || __LINUX_ARM_ARCH__ >= 7
 #define cache_ops_need_broadcast()     0
@@ -66,4 +70,22 @@ static inline int get_logical_index(u32 mpidr)
        return -EINVAL;
 }
 
+/*
+ * NOTE ! Assembly code relies on the following
+ * structure memory layout in order to carry out load
+ * multiple from its base address. For more
+ * information check arch/arm/kernel/sleep.S
+ */
+struct mpidr_hash {
+       u32     mask; /* used by sleep.S */
+       u32     shift_aff[3]; /* used by sleep.S */
+       u32     bits;
+};
+
+extern struct mpidr_hash mpidr_hash;
+
+static inline u32 mpidr_hash_size(void)
+{
+       return 1 << mpidr_hash.bits;
+}
 #endif