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Diffstat (limited to 'arch/x86/kernel/smpboot.c')
-rw-r--r--arch/x86/kernel/smpboot.c72
1 files changed, 2 insertions, 70 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 617012f4619f..2ef14772dc04 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -83,10 +83,6 @@
#include <asm/hw_irq.h>
#include <asm/stackprotector.h>
-#ifdef CONFIG_ACPI_CPPC_LIB
-#include <acpi/cppc_acpi.h>
-#endif
-
/* representing HT siblings of each logical CPU */
DEFINE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_sibling_map);
EXPORT_PER_CPU_SYMBOL(cpu_sibling_map);
@@ -155,8 +151,6 @@ static inline void smpboot_restore_warm_reset_vector(void)
*((volatile u32 *)phys_to_virt(TRAMPOLINE_PHYS_LOW)) = 0;
}
-static void init_freq_invariance(bool secondary, bool cppc_ready);
-
/*
* Report back to the Boot Processor during boot time or to the caller processor
* during CPU online.
@@ -2097,48 +2091,6 @@ out:
return true;
}
-#ifdef CONFIG_ACPI_CPPC_LIB
-static bool amd_set_max_freq_ratio(void)
-{
- struct cppc_perf_caps perf_caps;
- u64 highest_perf, nominal_perf;
- u64 perf_ratio;
- int rc;
-
- rc = cppc_get_perf_caps(0, &perf_caps);
- if (rc) {
- pr_debug("Could not retrieve perf counters (%d)\n", rc);
- return false;
- }
-
- highest_perf = amd_get_highest_perf();
- nominal_perf = perf_caps.nominal_perf;
-
- if (!highest_perf || !nominal_perf) {
- pr_debug("Could not retrieve highest or nominal performance\n");
- return false;
- }
-
- perf_ratio = div_u64(highest_perf * SCHED_CAPACITY_SCALE, nominal_perf);
- /* midpoint between max_boost and max_P */
- perf_ratio = (perf_ratio + SCHED_CAPACITY_SCALE) >> 1;
- if (!perf_ratio) {
- pr_debug("Non-zero highest/nominal perf values led to a 0 ratio\n");
- return false;
- }
-
- arch_turbo_freq_ratio = perf_ratio;
- arch_set_max_freq_ratio(false);
-
- return true;
-}
-#else
-static bool amd_set_max_freq_ratio(void)
-{
- return false;
-}
-#endif
-
static void init_counter_refs(void)
{
u64 aperf, mperf;
@@ -2167,7 +2119,7 @@ static void register_freq_invariance_syscore_ops(void)
static inline void register_freq_invariance_syscore_ops(void) {}
#endif
-static void init_freq_invariance(bool secondary, bool cppc_ready)
+void init_freq_invariance(bool secondary, bool cppc_ready)
{
bool ret = false;
@@ -2187,7 +2139,7 @@ static void init_freq_invariance(bool secondary, bool cppc_ready)
if (!cppc_ready) {
return;
}
- ret = amd_set_max_freq_ratio();
+ ret = amd_set_max_freq_ratio(&arch_turbo_freq_ratio);
}
if (ret) {
@@ -2200,22 +2152,6 @@ static void init_freq_invariance(bool secondary, bool cppc_ready)
}
}
-#ifdef CONFIG_ACPI_CPPC_LIB
-static DEFINE_MUTEX(freq_invariance_lock);
-
-void init_freq_invariance_cppc(void)
-{
- static bool secondary;
-
- mutex_lock(&freq_invariance_lock);
-
- init_freq_invariance(secondary, true);
- secondary = true;
-
- mutex_unlock(&freq_invariance_lock);
-}
-#endif
-
static void disable_freq_invariance_workfn(struct work_struct *work)
{
static_branch_disable(&arch_scale_freq_key);
@@ -2264,8 +2200,4 @@ error:
pr_warn("Scheduler frequency invariance went wobbly, disabling!\n");
schedule_work(&disable_freq_invariance_work);
}
-#else
-static inline void init_freq_invariance(bool secondary, bool cppc_ready)
-{
-}
#endif /* CONFIG_X86_64 */