mirror of https://github.com/intel/gmmlib.git
357 lines
18 KiB
C++
357 lines
18 KiB
C++
/*==============================================================================
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Copyright(c) 2017 Intel Corporation
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files(the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and / or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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============================================================================*/
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#include "Internal/Common/GmmLibInc.h"
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#include "External/Common/GmmCachePolicy.h"
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#include "External/Common/CachePolicy/GmmCachePolicyGen10.h"
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#include "External/Common/CachePolicy/GmmCachePolicyGen11.h"
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//=============================================================================
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//
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// Function: IsSpecialMOCSUsage
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//
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// Desc: This function returns special(hw-reserved) MocsIdx based on usage
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//
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// Parameters: usage -> Resource usage type
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// UpdateMOCS -> True if MOCS Table must be updated, ow false
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//
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// Return: int32_t
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//
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//-----------------------------------------------------------------------------
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int32_t GmmLib::GmmGen11CachePolicy::IsSpecialMOCSUsage(GMM_RESOURCE_USAGE_TYPE Usage, bool &UpdateMOCS)
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{
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int32_t MocsIdx = -1;
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UpdateMOCS = true;
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switch(Usage)
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{
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case GMM_RESOURCE_USAGE_MOCS_62:
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__GMM_ASSERT(pCachePolicy[Usage].L3 == 0); //Architecturally, TR/Aux-TT node isn't L3-cacheable.
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pCachePolicy[Usage].L3 = 0;
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MocsIdx = 62;
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break;
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case GMM_RESOURCE_USAGE_L3_EVICTION:
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pCachePolicy[Usage].L3 = 0;
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MocsIdx = 63;
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break;
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default:
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UpdateMOCS = false;
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break;
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}
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return MocsIdx;
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}
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//=============================================================================
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//
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// Function: __GmmGen11InitCachePolicy
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//
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// Desc: This function initializes the cache policy
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//
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// Parameters: pCachePolicy -> Ptr to array to be populated with the
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// mapping of usages -> cache settings.
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//
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// Return: GMM_STATUS
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//
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//-----------------------------------------------------------------------------
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GMM_STATUS GmmLib::GmmGen11CachePolicy::InitCachePolicy()
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{
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__GMM_ASSERTPTR(pCachePolicy, GMM_ERROR);
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#define DEFINE_CACHE_ELEMENT(usage, llc, ellc, l3, wt, age, aom, lecc_scc, l3_scc, scf, sso, cos) DEFINE_CP_ELEMENT(usage, llc, ellc, l3, wt, age, aom, lecc_scc, l3_scc, scf, sso, cos, 0, 0, 0, 0, 0)
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#include "GmmGen11CachePolicy.h"
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#define TC_LLC (1)
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#define TC_ELLC (0) //Is this supported anymore in TargetCache?
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#define TC_LLC_ELLC (2)
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#define LeCC_UNCACHEABLE (0x1)
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#define LeCC_WT_CACHEABLE (0x2) //Only used as MemPushWRite disqualifier if set along with eLLC-only
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#define LeCC_WB_CACHEABLE (0x3)
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#define L3_UNCACHEABLE (0x1)
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#define L3_WB_CACHEABLE (0x3)
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#define DISABLE_SKIP_CACHING_CONTROL (0x0)
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#define ENABLE_SKIP_CACHING_CONTROL (0x1)
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#define DISABLE_SELF_SNOOP_OVERRIDE (0x0)
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#define ENABLE_SELF_SNOOP_OVERRIDE (0x1)
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#define ENABLE_SELF_SNOOP_ALWAYS (0x3)
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#define CLASS_SERVICE_ZERO (0x0)
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// Setup Static MOCS Table
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{
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this->SetUpMOCSTable();
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}
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{
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// Define index of cache element
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uint32_t Usage = 0;
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uint32_t CurrentMaxSpecialIndex = GMM_GEN9_MAX_NUMBER_MOCS_INDEXES - 1;
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#if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL))
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OverrideCachePolicy();
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#endif
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// Process the cache policy and fill in the look up table
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for(; Usage < GMM_RESOURCE_USAGE_MAX; Usage++)
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{
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bool CachePolicyError = false;
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bool SpecialMOCS = false;
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int32_t CPTblIdx = -1;
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uint32_t j = 0;
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uint32_t PTEValue = 0;
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GMM_CACHE_POLICY_TBL_ELEMENT UsageEle = {0};
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CPTblIdx = IsSpecialMOCSUsage((GMM_RESOURCE_USAGE_TYPE)Usage, SpecialMOCS);
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UsageEle.LeCC.Reserved = 0; // Reserved bits zeroe'd, this is so we
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// we can compare the unioned LeCC.DwordValue.
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UsageEle.LeCC.SelfSnoop = DISABLE_SELF_SNOOP_OVERRIDE;
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UsageEle.LeCC.CoS = CLASS_SERVICE_ZERO;
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UsageEle.LeCC.SCC = 0;
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UsageEle.LeCC.ESC = 0;
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if(pCachePolicy[Usage].SCF && pGmmGlobalContext->GetSkuTable().FtrLLCBypass)
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{
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UsageEle.LeCC.SCF = pCachePolicy[Usage].SCF;
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}
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if(pCachePolicy[Usage].SSO & ENABLE_SELF_SNOOP_OVERRIDE)
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{
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UsageEle.LeCC.SelfSnoop = pCachePolicy[Usage].SSO & ENABLE_SELF_SNOOP_ALWAYS;
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}
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if(pCachePolicy[Usage].CoS)
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{
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UsageEle.LeCC.CoS = pCachePolicy[Usage].CoS;
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}
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if(pCachePolicy[Usage].LeCC_SCC)
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{
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UsageEle.LeCC.SCC = pCachePolicy[Usage].LeCC_SCC;
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UsageEle.LeCC.ESC = ENABLE_SKIP_CACHING_CONTROL;
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}
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UsageEle.LeCC.LRUM = pCachePolicy[Usage].AGE;
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// default to LLC target cache.
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UsageEle.LeCC.TargetCache = TC_LLC;
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UsageEle.LeCC.Cacheability = LeCC_WB_CACHEABLE;
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if(pCachePolicy[Usage].LLC)
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{
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UsageEle.LeCC.TargetCache = TC_LLC;
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}
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else
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{
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UsageEle.LeCC.Cacheability = LeCC_UNCACHEABLE;
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}
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UsageEle.L3.Reserved = 0; // Reserved bits zeroe'd, this is so we
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// we can compare the unioned L3.UshortValue.
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UsageEle.L3.ESC = DISABLE_SKIP_CACHING_CONTROL;
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UsageEle.L3.SCC = 0;
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UsageEle.L3.Cacheability = pCachePolicy[Usage].L3 ? L3_WB_CACHEABLE : L3_UNCACHEABLE;
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if(pCachePolicy[Usage].L3_SCC)
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{
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UsageEle.L3.ESC = ENABLE_SKIP_CACHING_CONTROL;
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UsageEle.L3.SCC = (uint16_t)pCachePolicy[Usage].L3_SCC;
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}
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if(CPTblIdx >= GMM_GEN9_MAX_NUMBER_MOCS_INDEXES)
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{
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GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[CPTblIdx];
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CurrentMaxSpecialIndex = ((uint32_t)CPTblIdx > CurrentMaxSpecialIndex) ? (uint32_t)CPTblIdx : CurrentMaxSpecialIndex;
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if(SpecialMOCS && //Update if one of special MOCS enums
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!(TblEle->LeCC.DwordValue == UsageEle.LeCC.DwordValue &&
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TblEle->L3.UshortValue == UsageEle.L3.UshortValue))
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{
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//Assert if being overwritten!
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__GMM_ASSERT(TblEle->LeCC.DwordValue == 0 &&
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TblEle->L3.UshortValue == 0);
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}
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}
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else
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{
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for(j = 0; j <= CurrentMaxMocsIndex; j++)
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{
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GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[j];
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if(TblEle->LeCC.DwordValue == UsageEle.LeCC.DwordValue &&
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TblEle->L3.UshortValue == UsageEle.L3.UshortValue)
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{
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CPTblIdx = j;
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break;
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}
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}
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}
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// Didn't find the caching settings in one of the already programmed Explicit Mocs lookup table entries
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// Need to add a new explicit mocs lookup table entry.
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if(CPTblIdx == -1)
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{
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#if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL))
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// If the Cache Policy setting is overriden through regkey,
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// don't raise an assert/log error. Raising an assert for debug/perf testing isn't really helpful
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if(pCachePolicy[Usage].IsOverridenByRegkey)
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{
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if(CurrentMaxMocsIndex < GMM_GEN9_MAX_NUMBER_MOCS_INDEXES - 1)
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{
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GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &(pGmmGlobalContext->GetCachePolicyTlbElement()[++CurrentMaxMocsIndex]);
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CPTblIdx = CurrentMaxMocsIndex;
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TblEle->LeCC.DwordValue = UsageEle.LeCC.DwordValue;
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TblEle->L3.UshortValue = UsageEle.L3.UshortValue;
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}
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else
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{
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// Too many unique caching combinations to program the
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// MOCS lookup table.
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CachePolicyError = true;
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GMM_ASSERTDPF(
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"Cache Policy Init Error: Invalid Cache Programming, too many unique caching combinations"
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"(we only support GMM_GEN_MAX_NUMBER_MOCS_INDEXES = %d)",
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GMM_GEN9_MAX_NUMBER_MOCS_INDEXES - 1);
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// Set cache policy index to uncached.
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CPTblIdx = 0;
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}
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}
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else
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#endif
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{
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GMM_ASSERTDPF(false, "CRITICAL ERROR: Cache Policy Usage value specified by Client in not defined in Fixed MOCS Table!");
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// Log Error using regkey to indicate the above error
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#if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL) && __GMM_KMD__)
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REGISTRY_OVERRIDE_WRITE(Usage, NewMOCSEntryLeCCValue, UsageEle.LeCC.DwordValue);
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REGISTRY_OVERRIDE_WRITE(Usage, NewMOCSEntryL3Value, UsageEle.L3.UshortValue);
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#endif
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CachePolicyError = true;
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GMM_ASSERTDPF(
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"Cache Policy Init Error: Invalid Cache Programming, too many unique caching combinations"
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"(we only support GMM_GEN_MAX_NUMBER_MOCS_INDEXES = %d)",
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CurrentMaxMocsIndex);
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// Set cache policy index to uncached.
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CPTblIdx = 0;
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}
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}
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// PTE entries do not control caching on SKL+ (for legacy context)
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if(!GetUsagePTEValue(pCachePolicy[Usage], Usage, &PTEValue))
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{
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CachePolicyError = true;
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}
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pCachePolicy[Usage].PTE.DwordValue = PTEValue;
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pCachePolicy[Usage].MemoryObjectOverride.Gen11.Index = CPTblIdx;
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pCachePolicy[Usage].Override = ALWAYS_OVERRIDE;
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if(CachePolicyError)
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{
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GMM_ASSERTDPF("Cache Policy Init Error: Invalid Cache Programming - Element %d", Usage);
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}
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}
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CurrentMaxSpecialMocsIndex = CurrentMaxSpecialIndex;
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}
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return GMM_SUCCESS;
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}
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//=============================================================================
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//
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// Function: SetUpMOCSTable
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//
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// Desc:
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//
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// Parameters:
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//
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// Return: GMM_STATUS
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//
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//-----------------------------------------------------------------------------
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void GmmLib::GmmGen11CachePolicy::SetUpMOCSTable()
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{
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GMM_CACHE_POLICY_TBL_ELEMENT *pCachePolicyTlbElement = &(pGmmGlobalContext->GetCachePolicyTlbElement()[0]);
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#define GMM_DEFINE_MOCS(Index, L3_ESC, L3_SCC, L3_CC, LeCC_CC, LeCC_TC, LeCC_LRUM, LeCC_AOM, LeCC_ESC, LeCC_SCC, LeCC_PFM, LeCC_SCF, LeCC_CoS, LeCC_SelfSnoop) \
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{ \
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pCachePolicyTlbElement[Index].L3.ESC = L3_ESC; \
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pCachePolicyTlbElement[Index].L3.SCC = L3_SCC; \
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pCachePolicyTlbElement[Index].L3.Cacheability = L3_CC; \
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pCachePolicyTlbElement[Index].LeCC.Cacheability = LeCC_CC; \
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pCachePolicyTlbElement[Index].LeCC.TargetCache = LeCC_TC; \
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pCachePolicyTlbElement[Index].LeCC.LRUM = LeCC_LRUM; \
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pCachePolicyTlbElement[Index].LeCC.AOM = LeCC_AOM; \
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pCachePolicyTlbElement[Index].LeCC.ESC = LeCC_ESC; \
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pCachePolicyTlbElement[Index].LeCC.SCC = LeCC_SCC; \
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pCachePolicyTlbElement[Index].LeCC.PFM = LeCC_PFM; \
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pCachePolicyTlbElement[Index].LeCC.SCF = LeCC_SCF; \
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pCachePolicyTlbElement[Index].LeCC.CoS = LeCC_CoS; \
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pCachePolicyTlbElement[Index].LeCC.SelfSnoop = LeCC_SelfSnoop; \
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}
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// clang-format off
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// Explicit MOCS Table
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// Index ESC SCC L3CC LeCC TC LRUM DAoM ERSC SCC PFM SCF CoS SSE
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GMM_DEFINE_MOCS( 0 , 0 , 0 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 1 , 0 , 0 , 3 , 0 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 2 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 3 , 0 , 0 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 4 , 0 , 0 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 5 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 6 , 0 , 0 , 1 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 7 , 0 , 0 , 3 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 8 , 0 , 0 , 1 , 3 , 1 , 2 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 9 , 0 , 0 , 3 , 3 , 1 , 2 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 10 , 0 , 0 , 1 , 3 , 1 , 3 , 1 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 11 , 0 , 0 , 3 , 3 , 1 , 3 , 1 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 12 , 0 , 0 , 1 , 3 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 13 , 0 , 0 , 3 , 3 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 14 , 0 , 0 , 1 , 3 , 1 , 2 , 1 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 15 , 0 , 0 , 3 , 3 , 1 , 2 , 1 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 16 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 17 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 18 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 3 )
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GMM_DEFINE_MOCS( 19 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 7 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 20 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 3 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 21 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 1 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 22 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 1 , 3 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 23 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 1 , 7 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 62 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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GMM_DEFINE_MOCS( 63 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 )
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if (GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) >= IGFX_LAKEFIELD)
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{
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GMM_DEFINE_MOCS( 16 , 0 , 0 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 1 , 0 , 0 )
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GMM_DEFINE_MOCS( 17 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 3 )
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}
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CurrentMaxMocsIndex = 23;
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// clang-format on
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#undef GMM_DEFINE_MOCS
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}
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