arm64: Make _midr_in_range_list() an exported function

Subsequent patch will add target implementation CPU support and that will require _midr_in_range_list() to access new data. To avoid exporting the data make _midr_in_range_list() a normal function and export it. No functional changes intended. Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20250221140229.12588-5-shameerali.kolothum.thodi@huawei.com Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
mariux64 · Feb 26, 2025 · c8c2647 · c8c2647
1 parent c0000e5
commit c8c2647
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Showing 3 changed files with 17 additions and 14 deletions.
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
@@ -276,20 +276,7 @@ static inline bool midr_is_cpu_model_range(u32 midr, u32 model, u32 rv_min,
 	return _model == model && rv >= rv_min && rv <= rv_max;
 }
 
-static inline bool is_midr_in_range(struct midr_range const *range)
-{
-	return midr_is_cpu_model_range(read_cpuid_id(), range->model,
-				       range->rv_min, range->rv_max);
-}
-
-static inline bool
-is_midr_in_range_list(struct midr_range const *ranges)
-{
-	while (ranges->model)
-		if (is_midr_in_range(ranges++))
-			return true;
-	return false;
-}
+bool is_midr_in_range_list(struct midr_range const *ranges);
 
 static inline u64 __attribute_const__ read_cpuid_mpidr(void)
 {

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
@@ -14,6 +14,21 @@
 #include <asm/kvm_asm.h>
 #include <asm/smp_plat.h>
 
+static inline bool is_midr_in_range(struct midr_range const *range)
+{
+	return midr_is_cpu_model_range(read_cpuid_id(), range->model,
+				       range->rv_min, range->rv_max);
+}
+
+bool is_midr_in_range_list(struct midr_range const *ranges)
+{
+	while (ranges->model)
+		if (is_midr_in_range(ranges++))
+			return true;
+	return false;
+}
+EXPORT_SYMBOL_GPL(is_midr_in_range_list);
+
 static bool __maybe_unused
 __is_affected_midr_range(const struct arm64_cpu_capabilities *entry,
 			 u32 midr, u32 revidr)

diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
@@ -49,6 +49,7 @@ PROVIDE(__pi_arm64_sw_feature_override	= arm64_sw_feature_override);
 PROVIDE(__pi_arm64_use_ng_mappings	= arm64_use_ng_mappings);
 #ifdef CONFIG_CAVIUM_ERRATUM_27456
 PROVIDE(__pi_cavium_erratum_27456_cpus	= cavium_erratum_27456_cpus);
+PROVIDE(__pi_is_midr_in_range_list	= is_midr_in_range_list);
 #endif
 PROVIDE(__pi__ctype			= _ctype);
 PROVIDE(__pi_memstart_offset_seed	= memstart_offset_seed);