Source/GmmLib/ULT/GmmGen12dGPUCachePolicyULT.cpp

/*==============================================================================
Copyright(c) 2020 Intel Corporation

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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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============================================================================*/

#include "GmmGen12dGPUCachePolicyULT.h"

using namespace std;

/////////////////////////////////////////////////////////////////////////////////////
/// Sets up common environment for Cache Policy fixture tests. this is called once per
/// test case before executing all tests under resource fixture test case.
/// It also calls SetupTestCase from CommonULT to initialize global context and others.
///
/////////////////////////////////////////////////////////////////////////////////////
void CTestGen12dGPUCachePolicy::SetUpTestCase()
{
}

/////////////////////////////////////////////////////////////////////////////////////
/// cleans up once all the tests finish execution.  It also calls TearDownTestCase
/// from CommonULT to destroy global context and others.
///
/////////////////////////////////////////////////////////////////////////////////////
void CTestGen12dGPUCachePolicy::TearDownTestCase()
{
}

void CTestGen12dGPUCachePolicy::SetUpGen12dGPUVariant(PRODUCT_FAMILY platform)
{
    printf("%s\n", __FUNCTION__);

    GfxPlatform.eProductFamily = platform;

    GfxPlatform.eRenderCoreFamily = IGFX_XE_HP_CORE;

    pGfxAdapterInfo = (ADAPTER_INFO *)malloc(sizeof(ADAPTER_INFO));
    if(pGfxAdapterInfo)
    {
        memset(pGfxAdapterInfo, 0, sizeof(ADAPTER_INFO));

        pGfxAdapterInfo->SkuTable.FtrLinearCCS             = 1; //legacy y =>0 - test both
        pGfxAdapterInfo->SkuTable.FtrStandardMipTailFormat = 1;
        pGfxAdapterInfo->SkuTable.FtrTileY                 = 0;
        pGfxAdapterInfo->SkuTable.FtrLocalMemory           = 1;
        CommonULT::SetUpTestCase();
    }
}

void CTestGen12dGPUCachePolicy::TearDownGen12dGPUVariant()
{
    printf("%s\n", __FUNCTION__);

    CommonULT::TearDownTestCase();
}

TEST_F(CTestGen12dGPUCachePolicy, TestGen12dGPU_DG1CachePolicy)
{
    SetUpGen12dGPUVariant(IGFX_DG1);

    CheckL3Gen12dGPUCachePolicy();

    TearDownGen12dGPUVariant();
}

TEST_F(CTestGen12dGPUCachePolicy, TestGen12dGPU_XE_HP_SDVCachePolicy)
{
    SetUpGen12dGPUVariant(IGFX_XE_HP_SDV);

    CheckL3Gen12dGPUCachePolicy();

    TearDownGen12dGPUVariant();
}

void CTestGen12dGPUCachePolicy::CheckSpecialMocs(uint32_t                    Usage,
                                               uint32_t                    AssignedMocsIdx,
                                               GMM_CACHE_POLICY_ELEMENT ClientRequest)
{
    if(Usage == GMM_RESOURCE_USAGE_CCS) //60
    {
        EXPECT_EQ(AssignedMocsIdx, 60) << "Usage# " << Usage << ": Incorrect Index for CCS";
        EXPECT_EQ(0, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for CCS";
        EXPECT_EQ(0, ClientRequest.UcLookup) << "Usage# " << Usage << ": Incorrect L3 LookUp cacheability for CCS";
    }
    else if(Usage == GMM_RESOURCE_USAGE_CCS_MEDIA_WRITABLE) // 61
    {
        EXPECT_EQ(AssignedMocsIdx, 61) << "Usage# " << Usage << ": Incorrect Index for CCS";
        EXPECT_EQ(0, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for CCS";
        EXPECT_EQ(0, ClientRequest.UcLookup) << "Usage# " << Usage << ": Incorrect L3 LookUp cacheability for CCS";
    }
    else if(Usage == GMM_RESOURCE_USAGE_MOCS_62) //62
    {
        EXPECT_EQ(AssignedMocsIdx, 62) << "Usage# " << Usage << ": Incorrect Index for MOCS_62";
        EXPECT_EQ(0, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for MOCS#62";
    }
}

void CTestGen12dGPUCachePolicy::CheckMocsIdxHDCL1(uint32_t                    Usage,
                                                uint32_t                    AssignedMocsIdx,
                                                GMM_CACHE_POLICY_ELEMENT ClientRequest)
{
#define GMM_GEN12_MAX_NUMBER_MOCS_INDEXES (60) // On TGL last four (#60-#63) are reserved by h/w, few? are sw configurable though (#60)

    // Check of assigned Index setting is appropriate for HDCL1 setting
    if(ClientRequest.HDCL1)
    {
        EXPECT_GE(AssignedMocsIdx, GMM_GEN10_HDCL1_MOCS_INDEX_START) << "Usage# " << Usage << ": Index must be greater than " << GMM_GEN10_HDCL1_MOCS_INDEX_START - 1 << " for HDCL1 setting. AssignedMocs: " << AssignedMocsIdx;
        EXPECT_LT(AssignedMocsIdx, GMM_GEN12_MAX_NUMBER_MOCS_INDEXES) << "Usage# " << Usage << ": Index must be less than " << GMM_GEN12_MAX_NUMBER_MOCS_INDEXES << "for  HDCL1 setting";
    }
    else if(AssignedMocsIdx < GMM_GEN12_MAX_NUMBER_MOCS_INDEXES)
    {
        EXPECT_LT(AssignedMocsIdx, GMM_GEN10_HDCL1_MOCS_INDEX_START) << "Usage# " << Usage << ": Incorrect Index for HDCL1 setting";
    }
}

void CTestGen12dGPUCachePolicy::CheckL3Gen12dGPUCachePolicy()
{
    const uint32_t L3_WB_CACHEABLE = 0x3;
    const uint32_t L3_UNCACHEABLE  = 0x1;

    // Check Usage MOCS index against MOCS settings
    for(uint32_t Usage = GMM_RESOURCE_USAGE_UNKNOWN; Usage < GMM_RESOURCE_USAGE_MAX; Usage++)
    {
        GMM_CACHE_POLICY_ELEMENT     ClientRequest   = pGmmULTClientContext->GetCachePolicyElement((GMM_RESOURCE_USAGE_TYPE)Usage);
        uint32_t                        AssignedMocsIdx = ClientRequest.MemoryObjectOverride.Gen12.Index;
        GMM_CACHE_POLICY_TBL_ELEMENT Mocs            = pGmmULTClientContext->GetCachePolicyTlbElement(AssignedMocsIdx);
        uint32_t                     StartMocsIdx    = 1;

        //printf("Usage: %d --> Index: [%d]\n", Usage, AssignedMocsIdx);

        if(StartMocsIdx == 1)
        {
            EXPECT_NE(0, AssignedMocsIdx) << "Usage# " << Usage << ": Misprogramming MOCS - Index 0 is reserved for Error";
        }

        EXPECT_EQ(0, Mocs.L3.ESC) << "Usage# " << Usage << ": ESC is non-zero";
        EXPECT_EQ(0, Mocs.L3.SCC) << "Usage# " << Usage << ": SCC is non-zero";
        EXPECT_EQ(0, Mocs.L3.Reserved) << "Usage# " << Usage << ": Reserved field is non-zero";
        // Check if Mocs Index is not greater than GMM_MAX_NUMBER_MOCS_INDEXES
        EXPECT_GT(GMM_MAX_NUMBER_MOCS_INDEXES, AssignedMocsIdx) << "Usage# " << Usage << ": MOCS Index greater than MAX allowed (63)";

        if(GfxPlatform.eProductFamily <= IGFX_XE_HP_SDV)
        {
            CheckMocsIdxHDCL1(Usage, AssignedMocsIdx, ClientRequest);
        }

        if(GfxPlatform.eProductFamily <= IGFX_XE_HP_SDV)
        {
            CheckSpecialMocs(Usage, AssignedMocsIdx, ClientRequest);
        }

        if(ClientRequest.L3)
        {
            EXPECT_EQ(L3_WB_CACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
        }
        else
        {
            EXPECT_EQ(L3_UNCACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
        }
    }
}