/*
 * BSD LICENSE
 *
 * Copyright(c) 2014-2026 Intel Corporation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

/**
 * @brief Internal defines and data structure definition
 */

#ifndef __CPU_REGISTERS_H__
#define __CPU_REGISTERS_H__

#ifdef __cplusplus
extern "C" {
#endif

/**
 * Allocation & Monitoring association MSR register
 * - bits [63..32] QE COS
 * - bits [31..10] Reserved
 * - bits [9..0] RMID
 */
#define PQOS_MSR_ASSOC             0xC8F
#define PQOS_MSR_ASSOC_QECOS_SHIFT 32
#define PQOS_MSR_ASSOC_QECOS_MASK  0xffffffff00000000ULL
#define PQOS_MSR_ASSOC_RMID_MASK   ((1ULL << 10) - 1ULL)

/**
 * Allocation class of service (COS) MSR registers
 */
#define PQOS_MSR_L3CA_MASK_START 0xC90
#define PQOS_MSR_L3CA_MASK_END   0xD0F
#define PQOS_MSR_L3CA_MASK_NUMOF                                               \
        (PQOS_MSR_L3CA_MASK_END - PQOS_MSR_L3CA_MASK_START + 1)

#define PQOS_MSR_L2CA_MASK_START 0xD10
#define PQOS_MSR_MBA_MASK_START  0xD50

/**
 * MBA Allocation class of service (COS) MSR register for AMD
 */
#define PQOS_MSR_MBA_MASK_START_AMD 0xC0000200

/**
 * SMBA Allocation class of service (COS) MSR register for AMD
 */
#define PQOS_MSR_SMBA_MASK_START_AMD 0xC0000280

#define PQOS_MSR_L3_QOS_CFG        0xC81 /**< L3 CAT config register */
#define PQOS_MSR_L3_QOS_CFG_CDP_EN 1ULL  /**< L3 CDP enable bit */

#define PQOS_MSR_L3_IO_QOS_CFG    0xC83 /**< L3 I/O RDT config register */
#define PQOS_MSR_L3_IO_QOS_CA_EN  1ULL  /**< I/O RDT allocation enable bit */
#define PQOS_MSR_L3_IO_QOS_MON_EN 2ULL  /**< I/O RDT monitoring enable bit */

#define PQOS_MSR_L2_QOS_CFG        0xC82 /**< L2 CAT config register */
#define PQOS_MSR_L2_QOS_CFG_CDP_EN 1ULL  /**< L2 CDP enable bit */

#define PQOS_MSR_SNC_CFG          0xCA0       /**< SNC config register */
#define PQOS_MSR_MBA_CFG          0xC84       /**< MBA config register */
#define PQOS_MSR_MBA_CFG_MBA40_EN (1ULL << 2) /**< MBA 4.0 enable bit */

/**
 * Core Capabilities MSR register
 */
#define PQOS_MSR_CORE_CAPABILITIES 0xCF

/**
 * MBA 4.0 presence bit
 */
#define PQOS_MSR_CORE_CAPABILITIES_MBA40_EN (1ULL << 10)

/**
 * MBA linear max value
 */
#define PQOS_MBA_LINEAR_MAX 100

/**
 * MBA max value for AMD
 */
#define PQOS_MBA_MAX_AMD 0x800

/**
 * Available types of allocation resource ID's.
 * (matches CPUID enumeration)
 */
#define PQOS_RES_ID_L3_ALLOCATION 1 /**< L3 cache allocation */
#define PQOS_RES_ID_L2_ALLOCATION 2 /**< L2 cache allocation */
#define PQOS_RES_ID_MB_ALLOCATION 3 /**< Memory BW allocation */

#define PQOS_CPUID_CAT_IORDT_BIT 1 /**< I/O RDT supported bit */
#define PQOS_CPUID_CAT_CDP_BIT   2 /**< CDP supported bit */
/* Non-Contiguous 1s value supported bit */
#define PQOS_CPUID_CAT_NON_CONTIGUOUS_CBM_SUPPORT_BIT 3

/**
 * Non-Contiguous 1s value support in CBM(Cache Bit Mask)
 */
#define PQOS_CPUID_CAT_NON_CONTIGUOUS_CBM_SUPPORT 1

#define PQOS_CPUID_MON_L3_OCCUP_BIT 0x1 /**< LLC occupancy supported bit */
#define PQOS_CPUID_MON_TMEM_BW_BIT  0x2 /**< TMEM B/W supported bit */
#define PQOS_CPUID_MON_LMEM_BW_BIT  0x4 /**< LMEM B/W supported bit */
#define PQOS_CPUID_MON_IO_OCCUP_BIT                                            \
        0x200 /**< I/O RDT cache occupancy supported bit */
#define PQOS_CPUID_MON_IO_MEM_BW                                               \
        0x400 /**< I/O RDT B/W monitoring supported bit */

/**
 * Monitoring data read MSR register
 */
#define PQOS_MSR_MON_QMC             0xC8E
#define PQOS_MSR_MON_QMC_DATA_MASK   ((1ULL << 62) - 1ULL)
#define PQOS_MSR_MON_QMC_ERROR       (1ULL << 63)
#define PQOS_MSR_MON_QMC_UNAVAILABLE (1ULL << 62)

/**
 * Monitoring event selection MSR register
 * - bits [63..42] Reserved
 * - bits [41..32] RMID
 * - bits [31..8] Reserved
 * - bits [7..0] Event ID
 */
#define PQOS_MSR_MON_EVTSEL            0xC8D
#define PQOS_MSR_MON_EVTSEL_RMID_SHIFT 32
#define PQOS_MSR_MON_EVTSEL_RMID_MASK  ((1ULL << 10) - 1ULL)
#define PQOS_MSR_MON_EVTSEL_EVTID_MASK ((1ULL << 8) - 1ULL)

/**
 * MSR's to read instructions retired, unhalted cycles,
 * LLC references and LLC misses.
 * These MSR's are needed to calculate IPC (instructions per clock) and
 * LLC miss ratio.
 */
#define IA32_MSR_INST_RETIRED_ANY    0x309
#define IA32_MSR_CPU_UNHALTED_THREAD 0x30A
#define IA32_MSR_FIXED_CTR_CTRL      0x38D
#define IA32_MSR_PERF_GLOBAL_CTRL    0x38F
#define IA32_MSR_PMC0                0x0C1
#define IA32_MSR_PMC1                0x0C2
#define IA32_MSR_PERFEVTSEL0         0x186
#define IA32_MSR_PERFEVTSEL1         0x187

#define IA32_EVENT_LLC_MISS_MASK  0x2EULL
#define IA32_EVENT_LLC_MISS_UMASK 0x41ULL
#define IA32_EVENT_LLC_REF_MASK   0x2EULL
#define IA32_EVENT_LLC_REF_UMASK  0x4FULL

/**
 * MSR's to read DDIO monitoring metrics *
 */
#define IAT_MSR_C_UNIT_CTRL 0x00000E00

#define IAT_MSR_C_PMON_BOX_CTRL0 0x00000E01
#define IAT_MSR_C_PMON_BOX_CTRL1 0x00000E02
#define IAT_MSR_C_PMON_BOX_CTRL2 0x00000E03
#define IAT_MSR_C_PMON_BOX_CTRL3 0x00000E04
#define IAT_MSR_C_PMON_BOX_CTR0  0x00000E08

#ifdef __cplusplus
}
#endif

#endif /* __CPU_REGISTERS_H__ */
