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-rw-r--r--include/linux/amd-pstate.h16
1 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/amd-pstate.h b/include/linux/amd-pstate.h
index dae2ce0f6735..72ea7cf85ca3 100644
--- a/include/linux/amd-pstate.h
+++ b/include/linux/amd-pstate.h
@@ -12,6 +12,11 @@
#include <linux/pm_qos.h>
+#define AMD_CPPC_EPP_PERFORMANCE 0x00
+#define AMD_CPPC_EPP_BALANCE_PERFORMANCE 0x80
+#define AMD_CPPC_EPP_BALANCE_POWERSAVE 0xBF
+#define AMD_CPPC_EPP_POWERSAVE 0xFF
+
/*********************************************************************
* AMD P-state INTERFACE *
*********************************************************************/
@@ -47,6 +52,10 @@ struct amd_aperf_mperf {
* @prev: Last Aperf/Mperf/tsc count value read from register
* @freq: current cpu frequency value
* @boost_supported: check whether the Processor or SBIOS supports boost mode
+ * @epp_policy: Last saved policy used to set energy-performance preference
+ * @epp_cached: Cached CPPC energy-performance preference value
+ * @policy: Cpufreq policy value
+ * @cppc_cap1_cached Cached MSR_AMD_CPPC_CAP1 register value
*
* The amd_cpudata is key private data for each CPU thread in AMD P-State, and
* represents all the attributes and goals that AMD P-State requests at runtime.
@@ -72,6 +81,12 @@ struct amd_cpudata {
u64 freq;
bool boost_supported;
+
+ /* EPP feature related attributes*/
+ s16 epp_policy;
+ s16 epp_cached;
+ u32 policy;
+ u64 cppc_cap1_cached;
};
/*
@@ -90,5 +105,4 @@ static const char * const amd_pstate_mode_string[] = {
[AMD_PSTATE_ACTIVE] = "active",
NULL,
};
-
#endif /* _LINUX_AMD_PSTATE_H */