powerpc/mm: Add early_[cpu|mmu]_has_feature()

In later patches, we will be switching CPU and MMU feature checks to
use static keys.

For checks in early boot before jump label is initialized we need a
variant of [cpu|mmu]_has_feature() that doesn't use jump labels.

So create those called, unimaginatively, early_[cpu|mmu]_has_feature().

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 16 insertions, 1 deletions

diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index f413b3213a3b..08b4c06604d6 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -135,11 +135,16 @@ enum {
 		0,
 };
 
-static inline bool mmu_has_feature(unsigned long feature)
+static inline bool early_mmu_has_feature(unsigned long feature)
 {
 	return !!(MMU_FTRS_POSSIBLE & cur_cpu_spec->mmu_features & feature);
 }
 
+static inline bool mmu_has_feature(unsigned long feature)
+{
+	return early_mmu_has_feature(feature);
+}
+
 static inline void mmu_clear_feature(unsigned long feature)
 {
 	cur_cpu_spec->mmu_features &= ~feature;
@@ -168,11 +173,21 @@ static inline bool radix_enabled(void)
 {
 	return mmu_has_feature(MMU_FTR_TYPE_RADIX);
 }
+
+static inline bool early_radix_enabled(void)
+{
+	return early_mmu_has_feature(MMU_FTR_TYPE_RADIX);
+}
 #else
 static inline bool radix_enabled(void)
 {
 	return false;
 }
+
+static inline bool early_radix_enabled(void)
+{
+	return false;
+}
 #endif
 
 #endif /* !__ASSEMBLY__ */