diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/cpufreq/amd-pstate.h (renamed from include/linux/amd-pstate.h) | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/include/linux/amd-pstate.h b/drivers/cpufreq/amd-pstate.h index 6ad02ad9c7..bc341f3590 100644 --- a/include/linux/amd-pstate.h +++ b/drivers/cpufreq/amd-pstate.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * linux/include/linux/amd-pstate.h - * * Copyright (C) 2022 Advanced Micro Devices, Inc. * * Author: Meng Li <li.meng@amd.com> @@ -12,11 +10,6 @@ #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 * *********************************************************************/ @@ -39,11 +32,16 @@ struct amd_aperf_mperf { * @cppc_req_cached: cached performance request hints * @highest_perf: the maximum performance an individual processor may reach, * assuming ideal conditions + * For platforms that do not support the preferred core feature, the + * highest_pef may be configured with 166 or 255, to avoid max frequency + * calculated wrongly. we take the fixed value as the highest_perf. * @nominal_perf: the maximum sustained performance level of the processor, * assuming ideal operating conditions * @lowest_nonlinear_perf: the lowest performance level at which nonlinear power * savings are achieved * @lowest_perf: the absolute lowest performance level of the processor + * @prefcore_ranking: the preferred core ranking, the higher value indicates a higher + * priority. * @max_freq: the frequency that mapped to highest_perf * @min_freq: the frequency that mapped to lowest_perf * @nominal_freq: the frequency that mapped to nominal_perf @@ -52,6 +50,9 @@ 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 + * @hw_prefcore: check whether HW supports preferred core featue. + * Only when hw_prefcore and early prefcore param are true, + * AMD P-State driver supports preferred core featue. * @epp_policy: Last saved policy used to set energy-performance preference * @epp_cached: Cached CPPC energy-performance preference value * @policy: Cpufreq policy value @@ -70,6 +71,7 @@ struct amd_cpudata { u32 nominal_perf; u32 lowest_nonlinear_perf; u32 lowest_perf; + u32 prefcore_ranking; u32 min_limit_perf; u32 max_limit_perf; u32 min_limit_freq; @@ -85,6 +87,7 @@ struct amd_cpudata { u64 freq; bool boost_supported; + bool hw_prefcore; /* EPP feature related attributes*/ s16 epp_policy; @@ -94,24 +97,4 @@ struct amd_cpudata { bool suspended; }; -/* - * enum amd_pstate_mode - driver working mode of amd pstate - */ -enum amd_pstate_mode { - AMD_PSTATE_UNDEFINED = 0, - AMD_PSTATE_DISABLE, - AMD_PSTATE_PASSIVE, - AMD_PSTATE_ACTIVE, - AMD_PSTATE_GUIDED, - AMD_PSTATE_MAX, -}; - -static const char * const amd_pstate_mode_string[] = { - [AMD_PSTATE_UNDEFINED] = "undefined", - [AMD_PSTATE_DISABLE] = "disable", - [AMD_PSTATE_PASSIVE] = "passive", - [AMD_PSTATE_ACTIVE] = "active", - [AMD_PSTATE_GUIDED] = "guided", - NULL, -}; #endif /* _LINUX_AMD_PSTATE_H */ |