/* IBM_PROLOG_BEGIN_TAG                                                   */
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/* $Source: src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle_traits.H $ */
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/* OpenPOWER HostBoot Project                                             */
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/* [+] International Business Machines Corp.                              */
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/* IBM_PROLOG_END_TAG                                                     */
///
/// @file p9_mss_utils_to_throttle.H
/// @brief throttle API
///

// *HWP HWP Owner: Andre Marin <aamarin@us.ibm.com>
// *HWP HWP Backup: Louis Stermole <stermole@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: FSP:HB

#ifndef _MSS_POWER_THROTTLE_TRAITS_
#define _MSS_POWER_THROTTLE_TRAITS_

#include <fapi2.H>
#include <generic/memory/lib/utils/power_thermal/gen_throttle_traits.H>

namespace mss
{
namespace power_thermal
{

///
/// @class Traits and policy class for throttle code - specialization for the NIMBUS mc type
///
template<>
class throttle_traits<mss::mc_type::NIMBUS>
{
    public:
        //////////////////////////////////////////////////////////////
        // Target types
        //////////////////////////////////////////////////////////////
        static constexpr fapi2::TargetType MC_TARGET_TYPE = fapi2::TARGET_TYPE_MCS;
        static constexpr fapi2::TargetType PORT_TARGET_TYPE = fapi2::TARGET_TYPE_MCA;

        // MIN_UTIL is  in c%
        static const uint64_t MIN_UTIL = 2500;
        // IDLE_UTIL is  in c%
        static const uint64_t IDLE_UTIL = 0;
        // Minimum throttle allowed for the port and or slot. If we set to 0, we brick the port
        static const uint64_t  MIN_THROTTLE = 1;

        enum size_of_attrs : size_t
        {
            SIZE_OF_POWER_CURVES_ATTRS = 100,
            SIZE_OF_THERMAL_ATTR = 10,
        };

        enum default_power
        {
            //Values are the worst case defaults for power curves
            //They are the default/ catch-all values from the power curve attributes
            //Shouldn't be used if system is set up correctly and attributes are available
            //This will throttle the DIMMs to ~76% dram data bus utilization
            //(using the mrw regulator power limit of 1700 cW and thermal power limit here of 1940 cW).
            VDDR_SLOPE = 0x41A,
            VDDR_INT = 0x384,
            TOTAL_SLOPE = 0x44C,
            TOTAL_INT = 0x44C,
            THERMAL_LIMIT = 0x794,
        };

        enum
        {
            PORTS_PER_MC = 2,
            DIMMS_PER_PORT = 2,
        };

        //Bit positions for different section of the attribute
        //first 32 bits are the encoding, second are for values
        enum DECODE_BUFFER_POS
        {
            ENCODING_START = 0,
            ENCODING_LENGTH = 32,
            VDDR_START = 32,
            VDDR_LENGTH = 16,
            TOTAL_START = 48,
            TOTAL_LENGTH = 16,
            THERMAL_POWER_START = 32,
            THERMAL_POWER_LENGTH = 32,
        };

        //Positions and lengths of the encodings
        enum ATTR_DECODE_INFO
        {
            DIMM_SIZE_START = 0,
            DIMM_SIZE_LEN = 4,

            DRAM_GEN_START = 4,
            DRAM_GEN_LEN = 2,

            DIMM_TYPE_START = 6,
            DIMM_TYPE_LEN = 2,

            DRAM_WIDTH_START = 8,
            DRAM_WIDTH_LEN = 3,

            DRAM_DENSITY_START = 11,
            DRAM_DENSITY_LEN = 3,

            DRAM_STACK_TYPE_START = 14,
            DRAM_STACK_TYPE_LEN = 2,

            DRAM_MFGID_START = 16,
            DRAM_MFGID_LEN = 3,

            DIMMS_PER_PORT_START = 19,
            DIMMS_PER_PORT_LEN = 2,

            // Invalid for Nimbus but compile will fail without them
            DIMM_MODULE_HEIGHT_START = 0,
            DIMM_MODULE_HEIGHT_LEN = 1,
        };


        // Definition is in chip folder
        static const std::vector< std::pair<uint8_t , uint8_t> > DIMM_TYPE_MAP;
};
}//power_thermal
}// mss

#endif