libpore/p9_stop_data_struct.H

/* IBM_PROLOG_BEGIN_TAG                                                   */
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/* $Source: src/import/chips/p9/procedures/utils/stopreg/p9_stop_data_struct.H $ */
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/* OpenPOWER HostBoot Project                                             */
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/* IBM_PROLOG_END_TAG                                                     */

///
/// @file   p9_stop_data_struct.H
/// @brief  describes data structures internal to STOP API.
///
// *HWP HW Owner    :  Greg Still <stillgs@us.ibm.com>
// *HWP FW Owner    :  Prem Shanker Jha <premjha2@in.ibm.com>
// *HWP Team        :  PM
// *HWP Level       :  2
// *HWP Consumed by :  HB:HYP
#ifndef __STOP_DATA_STRUCT_
#define __STOP_DATA_STRUCT_

#include "p9_hcd_memmap_base.H"

#ifdef __SKIBOOT__
    #include <skiboot.h>
#endif

#ifdef __FAPI_2_
    #include <fapi2.H>
#endif

#ifdef PPC_HYP

    #define STATIC

#else

    #define STATIC static

#endif

#ifdef __cplusplus
extern "C" {
namespace stopImageSection
{
#endif

enum
{
    MAX_SPR_RESTORE_INST        =   0x08,
    SIZE_PER_SPR_RESTORE_INST   =   ((4 * sizeof(uint8_t)) / sizeof(uint32_t)),
    MAX_THREAD_LEVEL_SPRS       =   11,
    MAX_CORE_LEVEL_SPRS         =   6,
    MAX_SPR_BIT_POS             =   31,
    SPR_BIT_POS_8               =    8,
    SPR_BIT_POS_19              =   19,
    SPR_BIT_POS_25              =   25,
    SPR_BIT_POS_27              =   27,
};

enum SprEntryUpdateMode
{
    INIT_SPR_REGION       =   0x01,
    UPDATE_SPR_ENTRY      =   0x02,
};

typedef struct
{
    uint32_t scomEntryHeader;
    uint32_t scomEntryAddress;
    uint64_t scomEntryData;
} ScomEntry_t;

/**
 * @brief models a CPU register restoration area in STOP section of homer image.
 */
typedef struct
{
    uint8_t iv_threadRestoreArea[MAX_THREADS_PER_CORE][SMF_CORE_RESTORE_THREAD_AREA_SIZE];
    uint8_t iv_threadSaveArea[MAX_THREADS_PER_CORE][SMF_SELF_SAVE_THREAD_AREA_SIZE];
    uint8_t iv_coreRestoreArea[SMF_CORE_RESTORE_CORE_AREA_SIZE];
    uint8_t iv_coreSaveArea[SMF_CORE_SAVE_CORE_AREA_SIZE];
} SmfSprRestoreArea_t;

typedef struct
{
    uint8_t iv_threadArea[CORE_RESTORE_THREAD_AREA_SIZE];
    uint8_t iv_coreArea[CORE_RESTORE_CORE_AREA_SIZE];
} SprRestoreArea_t;

/**
 * @brief   models homer image of a chip.
 * @note    sections not relevant for CPU register restoration have been
 * abstracted using field 'reserve'.
 */
typedef struct
{
    uint8_t iv_occ_host_sgpe_area[ TWO_MB ];  // CPU restore area starts at an offset of 2MB from chip HOMER
    uint8_t iv_interrruptHandler[SELF_RESTORE_INT_SIZE];
    uint8_t iv_threadLauncher[THREAD_LAUNCHER_SIZE];
    SprRestoreArea_t iv_coreThreadRestore[MAX_CORES_PER_CHIP][MAX_THREADS_PER_CORE];
    uint8_t reserve[(ONE_KB * ONE_KB) - SELF_RESTORE_SIZE_TOTAL];
} HomerSection_t;


/**
 * @brief   models homer image of a chip that supports SMF.
 * @note    sections not relevant for CPU register restoration have been
 * abstracted using field 'reserve'.
 */
typedef struct
{
    uint8_t iv_occ_host_sgpe_area[ TWO_MB ];
    uint8_t iv_interrruptHandler[SELF_RESTORE_INT_SIZE];
    uint8_t iv_threadLauncher[SMF_THREAD_LAUNCHER_SIZE];
    SmfSprRestoreArea_t iv_coreThreadRestore[MAX_CORES_PER_CHIP];
    uint8_t reserve[(ONE_KB * ONE_KB) - SMF_SELF_RESTORE_SIZE_TOTAL];
} SmfHomerSection_t;

/**
 * @brief models cache subsection in STOP section of a given homer image.
 * @note    given the start of cache subsection associated with a given core,
 *          the structure below represents what a cache subsection would look
 *          like. Based on known start address, quick traversing can be done
 *          within the cache subsection.
 */
typedef struct
{
    ScomEntry_t  nonCacheArea[MAX_EQ_SCOM_ENTRIES];
    ScomEntry_t  l2CacheArea[MAX_L2_SCOM_ENTRIES];
    ScomEntry_t  l3CacheArea[MAX_L3_SCOM_ENTRIES];
} StopCacheSection_t;

/**
 * @brief summarizes attributes associated with a SPR register.
 */
typedef struct
{
    uint32_t iv_sprId;
    bool     iv_isThreadScope;
    uint32_t iv_saveMaskPos;

} StopSprReg_t;

enum
{
    SIZE_SCOM_ENTRY     =   sizeof( ScomEntry_t ),
    SCOM_ENTRY_START    =   0xDEADDEAD,
    BAD_SAVE_MASK       =   0x007FF000,
    MAX_SPR_INDEX       =   31,
    TEST_BIT_PATTERN    =   0x80000000,
};

#ifdef __FAPI_2_
    #define MY_ERR( _fmt_, _args_...)  FAPI_ERR(_fmt_, ##_args_)
    #define MY_INF(_fmt_, _args_...) FAPI_INF(_fmt_, ##_args_)
#else
    #define MY_ERR( _fmt_, _args_...)
    #define MY_INF(_fmt_, _args_...)
#endif

#define CORE_ID_SCOM_START(io_image,\
                           i_chipletId) \
((ScomEntry_t*)(((uint8_t*)(io_image)) + CORE_SCOM_RESTORE_HOMER_OFFSET +\
                ((i_chipletId - CORE_CHIPLET_ID_MIN) * \
                 CORE_SCOM_RESTORE_SIZE_PER_CORE)));

#define CACHE_SECTN_START(io_image,\
                          i_chipletId) \
((StopCacheSection_t *)(((uint8_t *)(io_image)) + QUAD_SCOM_RESTORE_HOMER_OFFSET +\
                        ((i_chipletId - CACHE_CHIPLET_ID_MIN) * \
                         QUAD_SCOM_RESTORE_SIZE_PER_QUAD)));

#define CACHE_SCOM_ADDR(io_image,\
                        i_chipletId,\
                        i_maxScomEntry)\
((ScomEntry_t *)(((uint8_t *)(io_image)) + QUAD_SCOM_RESTORE_HOMER_OFFSET +\
                 ((i_chipletId - CACHE_CHIPLET_ID_MIN) * \
                  ((i_maxScomEntry + 1) * 16 ))));
#ifdef __cplusplus
}  // extern "C"

} //namespace stopImageSection ends
#endif //__cplusplus

#endif