From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Wed, 15 Oct 2025 13:46:40 +0000 (+0200)
Subject: cpufreq: intel_pstate: Add and use hybrid_get_cpu_type()
X-Git-Tag: v6.19-rc1~203^2~3^2~5^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=528dde6619677ac6dc26d9dda1e3c9014b4a08c8;p=thirdparty%2Fkernel%2Flinux.git

cpufreq: intel_pstate: Add and use hybrid_get_cpu_type()

Introduce a function for identifying the type of a given CPU in a
hybrid system, called hybrid_get_cpu_type(), and use if for hybrid
scaling factor determination in hwp_get_cpu_scaling().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/1954386.tdWV9SEqCh@rafael.j.wysocki
---

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 38897bb14a2c6..22316c9308643 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -912,6 +912,11 @@ static struct freq_attr *hwp_cpufreq_attrs[] = {
 	[HWP_CPUFREQ_ATTR_COUNT] = NULL,
 };
 
+static u8 hybrid_get_cpu_type(unsigned int cpu)
+{
+	return cpu_data(cpu).topo.intel_type;
+}
+
 static bool no_cas __ro_after_init;
 
 static struct cpudata *hybrid_max_perf_cpu __read_mostly;
@@ -2298,18 +2303,14 @@ static int knl_get_turbo_pstate(int cpu)
 static int hwp_get_cpu_scaling(int cpu)
 {
 	if (hybrid_scaling_factor) {
-		struct cpuinfo_x86 *c = &cpu_data(cpu);
-		u8 cpu_type = c->topo.intel_type;
-
 		/*
 		 * Return the hybrid scaling factor for P-cores and use the
 		 * default core scaling for E-cores.
 		 */
-		if (cpu_type == INTEL_CPU_TYPE_CORE)
+		if (hybrid_get_cpu_type(cpu) == INTEL_CPU_TYPE_CORE)
 			return hybrid_scaling_factor;
 
-		if (cpu_type == INTEL_CPU_TYPE_ATOM)
-			return core_get_scaling();
+		return core_get_scaling();
 	}
 
 	/* Use core scaling on non-hybrid systems. */