Source/GmmLib/ULT/GmmXe_LPGCachePolicyULT.cpp

/*==============================================================================
Copyright(c) 2022 Intel Corporation

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The above copyright notice and this permission notice shall be included
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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============================================================================*/
#include "GmmXe_LPGCachePolicyULT.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 CTestXe_LPGCachePolicy::SetUpTestCase()
{
}

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

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

    GfxPlatform.eProductFamily = platform;

    GfxPlatform.eRenderCoreFamily = IGFX_XE_HPG_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           = 0;
        pGfxAdapterInfo->SkuTable.FtrIA32eGfxPTEs          = 1;
        CommonULT::SetUpTestCase();
    }
}

void CTestXe_LPGCachePolicy::TearDownXe_LPGVariant()
{
    printf("%s\n", __FUNCTION__);

    CommonULT::TearDownTestCase();
}

/***********************XeLPG***********************************/
TEST_F(CTestXe_LPGCachePolicy, TestXe_LPGCachePolicy_FtrL4CacheEnabled)
{
    SetUpXe_LPGVariant(IGFX_METEORLAKE);
    CheckVirtualL3CachePolicy();
    CheckPAT();
    TearDownXe_LPGVariant();
}

void CTestXe_LPGCachePolicy::CheckVirtualL3CachePolicy()
{
    const uint32_t L4_WB_CACHEABLE = 0x0;
    const uint32_t L4_WT_CACHEABLE = 0x1;
    const uint32_t L4_UNCACHEABLE  = 0x3;

    const uint32_t L3_WB_CACHEABLE = 0x3;
    const uint32_t L3_UNCACHEABLE  = 0x1;

    for(uint32_t MocsIndex = 0; MocsIndex < GMM_XE_NUM_MOCS_ENTRIES; MocsIndex++)
    {
        GMM_CACHE_POLICY_TBL_ELEMENT Mocs = pGmmULTClientContext->GetCachePolicyTlbElement(MocsIndex);
        //printf("Xe LPG: MocsIndex: %d --> Global Index: [0x%x]\n", MocsIndex, Mocs.LeCC.Xe_LPG.DwordValue);
        //printf("Xe LPG: MocsIndex: %d --> L3 Index: [0x%x]\n", MocsIndex, Mocs.L3.UshortValue);
    }

    // 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    = 0;

        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_XE_NUM_MOCS_ENTRIES, AssignedMocsIdx) << "Usage# " << Usage << ": MOCS Index greater than MAX allowed (16)";
        EXPECT_EQ(0, Mocs.LeCC.Xe_LPG.Reserved0) << "Usage# " << Usage << ": : Reserved field is non-zero";
        EXPECT_EQ(0, Mocs.LeCC.Xe_LPG.Reserved1) << "Usage# " << Usage << ": : Reserved field is non-zero";
        EXPECT_EQ(0, Mocs.LeCC.Xe_LPG.Reserved2) << "Usage# " << Usage << ": : Reserved field is non-zero";
        EXPECT_EQ(0, Mocs.LeCC.Xe_LPG.Reserved3) << "Usage# " << Usage << ": : Reserved field is non-zero";
        EXPECT_EQ(1, Mocs.LeCC.Xe_LPG.igPAT) << "Usage# " << Usage << ": Incorrect igPAT cachebility setting";

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

        //L3
        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";
        }

        //L4
        // ADM memory cache 0: UC, 1:WB, 2: WT
        switch(ClientRequest.L4CC)
        {
            case 0x1:
            {
                EXPECT_EQ(L4_WB_CACHEABLE, Mocs.LeCC.Xe_LPG.L4CC) << "Usage# " << Usage << ": Incorrect L4CC cachebility setting";
                break;
            }
            case 0x2:
            {
                EXPECT_EQ(L4_WT_CACHEABLE, Mocs.LeCC.Xe_LPG.L4CC) << "Usage# " << Usage << ": Incorrect L4CC cachebility setting";
                break;
            }
            default:
                EXPECT_EQ(L4_UNCACHEABLE, Mocs.LeCC.Xe_LPG.L4CC) << "Usage# " << Usage << ": Incorrect L4CC cachebility setting";
        }
    }
}

void CTestXe_LPGCachePolicy::CheckPAT()
{

    // Check Usage PAT index against PAT 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);
        if(ClientRequest.Initialized == false) // undefined resource in platform
        {
            continue;
        }
        uint32_t PATIndex = pGmmULTClientContext->CachePolicyGetPATIndex(NULL, (GMM_RESOURCE_USAGE_TYPE)Usage, NULL, false);
        EXPECT_NE(PATIndex, GMM_PAT_ERROR) << "Usage# " << Usage << ": No matching PAT Index";
    }
}