media_driver/agnostic/common/shared/null_hardware.cpp

/*
* Copyright (c) 2020, Intel Corporation
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* copy of this software and associated documentation files (the "Software"),
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*
* The above copyright notice and this permission notice shall be included
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*
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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*/
//!
//! \file     null_hardware.cpp
//! \brief    Defines interfaces for null hardware
#include "mos_os_mock_adaptor.h"
#include "null_hardware.h"
#include "mhw_mi.h"

bool  NullHW::m_initilized = false;
bool  NullHW::m_enabled = false;

MOS_STATUS NullHW::Init(
    PMOS_CONTEXT osContext)
{
    MOS_STATUS eStatus = MOS_STATUS_SUCCESS;
    MOS_OS_CHK_NULL_RETURN(osContext);

    if (!m_initilized) {
        m_initilized = true;

        MOS_USER_FEATURE_VALUE_DATA UserFeatureData = {};
        MOS_ZeroMemory(&UserFeatureData, sizeof(UserFeatureData));
        MOS_UserFeature_ReadValue_ID(
            nullptr,
            __MEDIA_USER_FEATURE_VALUE_NULLHW_ENABLE_ID,
            &UserFeatureData,
            osContext);

        m_enabled = (UserFeatureData.i32Data) ? true : false;

        if (m_enabled)
        {
            eStatus = MosMockAdaptor::Init(osContext);
        }
        else
        {
            eStatus = MOS_STATUS_INVALID_HANDLE;
        }

    }
    return eStatus;
}

MOS_STATUS NullHW::Destroy()
{
    return MosMockAdaptor::Destroy();
}

MOS_STATUS NullHW::StartPredicate(MhwMiInterface* miInterface, PMOS_COMMAND_BUFFER cmdBuffer)
{
    if (!m_enabled)
    {
        return MOS_STATUS_SUCCESS;
    }
    MOS_OS_CHK_NULL_RETURN(miInterface);
    MOS_OS_CHK_NULL_RETURN(cmdBuffer);

    return miInterface->AddMiSetPredicateCmd(cmdBuffer, MHW_MI_SET_PREDICATE_ENABLE_ALWAYS);
}

MOS_STATUS NullHW::StopPredicate(MhwMiInterface* miInterface, PMOS_COMMAND_BUFFER cmdBuffer)
{
    if (!m_enabled)
    {
        return MOS_STATUS_SUCCESS;
    }
    MOS_OS_CHK_NULL_RETURN(miInterface);
    MOS_OS_CHK_NULL_RETURN(cmdBuffer);

    return miInterface->AddMiSetPredicateCmd(cmdBuffer, MHW_MI_SET_PREDICATE_DISABLE);
}

void NullHW::StatusReport(uint32_t &status, uint32_t &streamSize)
{
    if (!m_enabled)
    {
        return;
    }

    status = 0;
    streamSize = 1024;
}