linux/drivers/gpu/drm/amd/amdgpu/mes_api_def.h

/*
 * Copyright 2019 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#ifndef __MES_API_DEF_H__
#define __MES_API_DEF_H__

#pragma pack(push, 4)

typedef uint32_t uint32;
typedef uint64_t uint64;

#define MES_API_VERSION 1

//Driver submits one API(cmd) as a single Frame and this command size is same for all API
//to ease the debugging and parsing of ring buffer.
enum {API_FRAME_SIZE_IN_DWORDS = 64};

//To avoid command in scheduler context to be overwritten whenenver mutilple interrupts come in, 
//this creates another queue
enum {API_NUMBER_OF_COMMAND_MAX   = 32};

enum MES_API_TYPE
{
    MES_API_TYPE_SCHEDULER = 1,
    MES_API_TYPE_MAX
};

enum MES_SCH_API_OPCODE
{
    MES_SCH_API_SET_HW_RSRC                  = 0,
    MES_SCH_API_SET_SCHEDULING_CONFIG        = 1, //agreegated db, quantums, etc
    MES_SCH_API_ADD_QUEUE                    = 2,
    MES_SCH_API_REMOVE_QUEUE                 = 3,
    MES_SCH_API_PERFORM_YIELD                = 4,
    MES_SCH_API_SET_GANG_PRIORITY_LEVEL      = 5, //For windows GANG = Context
    MES_SCH_API_SUSPEND                      = 6,
    MES_SCH_API_RESUME                       = 7,
    MES_SCH_API_RESET                        = 8,
    MES_SCH_API_SET_LOG_BUFFER               = 9,
    MES_SCH_API_CHANGE_GANG_PRORITY          = 10,
    MES_SCH_API_QUERY_SCHEDULER_STATUS       = 11,
    MES_SCH_API_PROGRAM_GDS                  = 12,
    MES_SCH_API_MAX                          = 0xFF
};

union MES_API_HEADER
{
    struct
    {
        uint32 type	: 4; // 0 - Invalid; 1 - Scheduling; 2 - TBD
        uint32 opcode   : 8;
        uint32 dwsize   : 8; //including header
        uint32 reserved : 12;
    };

    uint32 u32All;
};

enum MES_AMD_PRIORITY_LEVEL
{
    AMD_PRIORITY_LEVEL_LOW       = 0,
    AMD_PRIORITY_LEVEL_NORMAL    = 1,
    AMD_PRIORITY_LEVEL_MEDIUM    = 2,
    AMD_PRIORITY_LEVEL_HIGH      = 3,
    AMD_PRIORITY_LEVEL_REALTIME  = 4,
    AMD_PRIORITY_NUM_LEVELS
};

enum MES_QUEUE_TYPE
{
    MES_QUEUE_TYPE_GFX,
    MES_QUEUE_TYPE_COMPUTE,
    MES_QUEUE_TYPE_SDMA,
    MES_QUEUE_TYPE_MAX,
};

struct MES_API_STATUS
{
    uint64 api_completion_fence_addr;
    uint64 api_completion_fence_value;
};

enum { MAX_COMPUTE_PIPES = 8 };
enum { MAX_GFX_PIPES	 = 2 };
enum { MAX_SDMA_PIPES    = 2 };

enum { MAX_COMPUTE_HQD_PER_PIPE     = 8 };
enum { MAX_GFX_HQD_PER_PIPE         = 8 };
enum { MAX_SDMA_HQD_PER_PIPE        = 10 };

enum { MAX_QUEUES_IN_A_GANG = 8 };

enum VM_HUB_TYPE
{
    VM_HUB_TYPE_GC = 0,
    VM_HUB_TYPE_MM = 1,
    VM_HUB_TYPE_MAX,
};

enum { VMID_INVALID = 0xffff };

enum { MAX_VMID_GCHUB = 16 };
enum { MAX_VMID_MMHUB = 16 };

enum MES_LOG_OPERATION
{
    MES_LOG_OPERATION_CONTEXT_STATE_CHANGE = 0
};

enum MES_LOG_CONTEXT_STATE
{
    MES_LOG_CONTEXT_STATE_IDLE = 0,
    MES_LOG_CONTEXT_STATE_RUNNING = 1,
    MES_LOG_CONTEXT_STATE_READY = 2,
    MES_LOG_CONTEXT_STATE_READY_STANDBY = 3,
};

struct MES_LOG_CONTEXT_STATE_CHANGE
{
    void*                   h_context;
    enum MES_LOG_CONTEXT_STATE   new_context_state;
};

struct MES_LOG_ENTRY_HEADER
{
    uint32 first_free_entry_index;
    uint32 wraparound_count;
    uint64 number_of_entries;
    uint64 reserved[2];
};

struct MES_LOG_ENTRY_DATA
{
    uint64 gpu_time_stamp;
    uint32 operation_type; //operation_type is of MES_LOG_OPERATION type
    uint32 reserved_operation_type_bits;
    union
    {
        struct MES_LOG_CONTEXT_STATE_CHANGE  context_state_change;
        uint64                        reserved_operation_data[2];
    };
};

struct MES_LOG_BUFFER
{
    struct MES_LOG_ENTRY_HEADER header;
    struct MES_LOG_ENTRY_DATA   entries[1];
};

union MESAPI_SET_HW_RESOURCES
{
    struct
    {
        union MES_API_HEADER                header;
        uint32                              vmid_mask_mmhub;
        uint32                              vmid_mask_gfxhub;
        uint32                              gds_size;
        uint32                              paging_vmid;
        uint32                              compute_hqd_mask[MAX_COMPUTE_PIPES];
        uint32                              gfx_hqd_mask[MAX_GFX_PIPES];
        uint32                              sdma_hqd_mask[MAX_SDMA_PIPES];
        uint32                              agreegated_doorbells[AMD_PRIORITY_NUM_LEVELS];
        uint64                              g_sch_ctx_gpu_mc_ptr;
        struct MES_API_STATUS               api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__ADD_QUEUE
{
    struct
    {
        union MES_API_HEADER        header;
        uint32                      process_id;
        uint64                      page_table_base_addr;
        uint64                      process_va_start;
        uint64                      process_va_end;
        uint64                      process_quantum;
        uint64                      process_context_addr;
        uint64                      gang_quantum;
        uint64                      gang_context_addr;
        uint32                      inprocess_gang_priority;
        enum MES_AMD_PRIORITY_LEVEL gang_global_priority_level;
        uint32                      doorbell_offset;
        uint64                      mqd_addr;
        uint64                      wptr_addr;
        enum MES_QUEUE_TYPE         queue_type;
        uint32                      gds_base;
        uint32                      gds_size;
        uint32                      gws_base;
        uint32                      gws_size;
        uint32                      oa_mask;

        struct
        {
            uint32 paging      : 1;
            uint32 program_gds : 1;
            uint32 reserved    : 30;
        };
        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__REMOVE_QUEUE
{
    struct
    {
        union MES_API_HEADER        header;
        uint32                      doorbell_offset;
        uint64                      gang_context_addr;
        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__SET_SCHEDULING_CONFIG
{
    struct
    {
        union MES_API_HEADER        header;
        // Grace period when preempting another priority band for this priority band.
        // The value for idle priority band is ignored, as it never preempts other bands.
        uint64                      grace_period_other_levels[AMD_PRIORITY_NUM_LEVELS];

        // Default quantum for scheduling across processes within a priority band.
        uint64                      process_quantum_for_level[AMD_PRIORITY_NUM_LEVELS];

        // Default grace period for processes that preempt each other within a priority band.
        uint64                      process_grace_period_same_level[AMD_PRIORITY_NUM_LEVELS];

        // For normal level this field specifies the target GPU percentage in situations when it's starved by the high level.
        // Valid values are between 0 and 50, with the default being 10.
        uint32                      normal_yield_percent;

        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__PERFORM_YIELD
{
    struct
    {
        union MES_API_HEADER    header;
        uint32                  dummy;
        struct MES_API_STATUS   api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__CHANGE_GANG_PRIORITY_LEVEL
{
    struct
    {
        union MES_API_HEADER        header;
        uint32                      inprocess_gang_priority;
        enum MES_AMD_PRIORITY_LEVEL gang_global_priority_level;
        uint64                      gang_quantum;
        uint64                      gang_context_addr;
        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__SUSPEND
{
    struct
    {
        union MES_API_HEADER        header;
        //false - suspend all gangs; true - specific gang
        struct
        {
            uint32                  suspend_all_gangs : 1;
            uint32                  reserved : 31;
        };
        //gang_context_addr is valid only if suspend_all = false
        uint64                      gang_context_addr;

        uint64                      suspend_fence_addr;
        uint32                      suspend_fence_value;

        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__RESUME
{
    struct
    {
        union MES_API_HEADER        header;
        //false - resume all gangs; true - specified gang
        struct
        {
            uint32                  resume_all_gangs : 1;
            uint32                  reserved : 31;
        };
        //valid only if resume_all_gangs = false
        uint64                      gang_context_addr;

        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__RESET
{
    struct
    {
        union MES_API_HEADER        header;

        struct
        {
            uint32                  reset_queue : 1;
            uint32                  reserved : 31;
        };

        uint64                      gang_context_addr;
        uint32                      doorbell_offset; //valid only if reset_queue = true
        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__SET_LOGGING_BUFFER
{
    struct
    {
        union MES_API_HEADER        header;
        //There are separate log buffers for each queue type
        enum MES_QUEUE_TYPE         log_type;
        //Log buffer GPU Address
        uint64                      logging_buffer_addr;
        //number of entries in the log buffer
        uint32                      number_of_entries;
        //Entry index at which CPU interrupt needs to be signalled
        uint32                      interrupt_entry;

        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__QUERY_MES_STATUS
{
    struct
    {
        union MES_API_HEADER        header;
        bool                        mes_healthy; //0 - not healthy, 1 - healthy
        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

union MESAPI__PROGRAM_GDS
{
    struct
    {
        union MES_API_HEADER        header;
        uint64                      process_context_addr;
        uint32                      gds_base;
        uint32                      gds_size;
        uint32                      gws_base;
        uint32                      gws_size;
        uint32                      oa_mask;
        struct MES_API_STATUS       api_status;
    };

    uint32 max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
};

#pragma pack(pop)
#endif