Merge tag 'v7.2-rc7' into driver-core-next

We need the driver-core fixes in here as well to build on top of.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>

7 files changed, 38 insertions, 15 deletions

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index a74a4cf99d22..3a6b4b224a66 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -1031,7 +1031,7 @@ static int amd_pstate_init_freq(struct amd_cpudata *cpudata)
 		return -EINVAL;
 	}
 
-	if (lowest_nonlinear_freq <= min_freq || lowest_nonlinear_freq > nominal_freq) {
+	if (lowest_nonlinear_freq < min_freq || lowest_nonlinear_freq > nominal_freq) {
 		pr_err("lowest_nonlinear_freq(%d) value is out of range [min_freq(%d), nominal_freq(%d)]\n",
 			lowest_nonlinear_freq, min_freq, nominal_freq);
 		return -EINVAL;
@@ -2167,6 +2167,7 @@ static struct cpufreq_driver amd_pstate_epp_driver = {
 };
 
 /*
+ * Processors without frequency scaling support can't do CPPC.
  * CPPC function is not supported for family ID 17H with model_ID ranging from 0x10 to 0x2F.
  * show the debug message that helps to check if the CPU has CPPC support for loading issue.
  */
@@ -2175,6 +2176,11 @@ static bool amd_cppc_supported(void)
 	struct cpuinfo_x86 *c = &cpu_data(0);
 	bool warn = false;
 
+	if (!cpu_feature_enabled(X86_FEATURE_HW_PSTATE)) {
+		pr_debug_once("frequency scaling is not supported by the processor\n");
+		return false;
+	}
+
 	if ((boot_cpu_data.x86 == 0x17) && (boot_cpu_data.x86_model < 0x30)) {
 		pr_debug_once("CPPC feature is not supported by the processor\n");
 		return false;
diff --git a/drivers/cpufreq/amd_freq_sensitivity.c b/drivers/cpufreq/amd_freq_sensitivity.c
index 739d54dc9f2b..e0cd3a9a5f00 100644
--- a/drivers/cpufreq/amd_freq_sensitivity.c
+++ b/drivers/cpufreq/amd_freq_sensitivity.c
@@ -14,7 +14,6 @@
 #include <linux/pci.h>
 #include <linux/percpu-defs.h>
 #include <linux/init.h>
-#include <linux/mod_devicetable.h>
 
 #include <asm/msr.h>
 #include <asm/cpufeature.h>
diff --git a/drivers/cpufreq/armada-37xx-cpufreq.c b/drivers/cpufreq/armada-37xx-cpufreq.c
index 1ec54fc4c2ba..79b6b8411b8d 100644
--- a/drivers/cpufreq/armada-37xx-cpufreq.c
+++ b/drivers/cpufreq/armada-37xx-cpufreq.c
@@ -14,7 +14,6 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/mfd/syscon.h>
-#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/pm_opp.h>
diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index f6cea0c54dd9..6fe0e972952a 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -290,19 +290,32 @@ static inline void cppc_freq_invariance_exit(void)
 }
 #endif /* CONFIG_ACPI_CPPC_CPUFREQ_FIE */
 
-static void cppc_cpufreq_update_perf_limits(struct cppc_cpudata *cpu_data,
-					    struct cpufreq_policy *policy)
+static void cppc_cpufreq_get_perf_limits(struct cppc_cpudata *cpu_data,
+					 struct cpufreq_policy *policy,
+					 u32 *min_perf, u32 *max_perf)
 {
 	struct cppc_perf_caps *caps = &cpu_data->perf_caps;
-	u32 min_perf, max_perf;
+	unsigned int min_freq, max_freq;
+	u32 min, max;
+
+	min_freq = READ_ONCE(policy->min);
+	max_freq = READ_ONCE(policy->max);
+	if (unlikely(min_freq > max_freq))
+		min_freq = max_freq;
+
+	min = cppc_khz_to_perf(caps, min_freq);
+	max = cppc_khz_to_perf(caps, max_freq);
 
-	min_perf = cppc_khz_to_perf(caps, policy->min);
-	max_perf = cppc_khz_to_perf(caps, policy->max);
+	*min_perf = clamp_t(u32, min, caps->lowest_perf, caps->highest_perf);
+	*max_perf = clamp_t(u32, max, caps->lowest_perf, caps->highest_perf);
+}
 
-	cpu_data->perf_ctrls.min_perf =
-		clamp_t(u32, min_perf, caps->lowest_perf, caps->highest_perf);
-	cpu_data->perf_ctrls.max_perf =
-		clamp_t(u32, max_perf, caps->lowest_perf, caps->highest_perf);
+static void cppc_cpufreq_update_perf_limits(struct cppc_cpudata *cpu_data,
+					    struct cpufreq_policy *policy)
+{
+	cppc_cpufreq_get_perf_limits(cpu_data, policy,
+				     &cpu_data->perf_ctrls.min_perf,
+				     &cpu_data->perf_ctrls.max_perf);
 }
 
 static int cppc_cpufreq_set_target(struct cpufreq_policy *policy,
@@ -693,7 +706,7 @@ static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		goto out;
 	}
 
-	policy->fast_switch_possible = cppc_allow_fast_switch();
+	policy->fast_switch_possible = cppc_allow_fast_switch(policy->cpus);
 	policy->dvfs_possible_from_any_cpu = true;
 
 	/*
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 507224c9ecd3..b898b6544069 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2586,6 +2586,9 @@ static void cpufreq_update_pressure(struct cpufreq_policy *policy)
 
 	cpu = cpumask_first(policy->related_cpus);
 	max_freq = arch_scale_freq_ref(cpu);
+	if (!max_freq)
+		max_freq = policy->cpuinfo.max_freq;
+
 	capped_freq = policy->max;
 
 	/*
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 5a0eeb84d382..6e984c114d96 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1058,12 +1058,14 @@ static void hybrid_clear_cpu_capacity(unsigned int cpunum)
 
 static void hybrid_get_capacity_perf(struct cpudata *cpu)
 {
+	u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached);
+
 	if (READ_ONCE(global.no_turbo)) {
-		cpu->capacity_perf = cpu->pstate.max_pstate_physical;
+		cpu->capacity_perf = HWP_GUARANTEED_PERF(hwp_cap);
 		return;
 	}
 
-	cpu->capacity_perf = HWP_HIGHEST_PERF(READ_ONCE(cpu->hwp_cap_cached));
+	cpu->capacity_perf = HWP_HIGHEST_PERF(hwp_cap);
 }
 
 static void hybrid_set_capacity_of_cpus(void)
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 2b791f1ec51b..909a3f0598a9 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1084,6 +1084,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 
 err_out_exit_acpi:
 	powernow_k8_cpu_exit_acpi(data);
+	kfree(data->powernow_table);
 
 err_out:
 	kfree(data);