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First patch for DG1 Unembargoed Change-Id: I43b4f47bba2b6c672af920e13bcd58a4c18ac22b
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/*============================================================================== | ||
Copyright(c) 2020 Intel Corporation | ||
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 AUTHORS OR COPYRIGHT HOLDERS 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. | ||
============================================================================*/ | ||
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#include "Internal/Common/GmmLibInc.h" | ||
#include "External/Common/GmmCachePolicy.h" | ||
#include "External/Common/CachePolicy/GmmCachePolicyGen10.h" | ||
#include "External/Common/CachePolicy/GmmCachePolicyGen11.h" | ||
#include "External/Common/CachePolicy/GmmCachePolicyGen12.h" | ||
#include "External/Common/CachePolicy/GmmCachePolicyGen12dGPU.h" | ||
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//============================================================================= | ||
// | ||
// Function: IsSpecialMOCSUsage | ||
// | ||
// Desc: This function returns special(hw-reserved) MocsIdx based on usage | ||
// | ||
// Parameters: usage -> Resource usage type | ||
// UpdateMOCS -> True if MOCS Table must be updated, ow false | ||
// | ||
// Return: int32_t | ||
// | ||
//----------------------------------------------------------------------------- | ||
int32_t GmmLib::GmmGen12dGPUCachePolicy::IsSpecialMOCSUsage(GMM_RESOURCE_USAGE_TYPE Usage, bool &UpdateMOCS) | ||
{ | ||
int32_t MocsIdx = -1; | ||
UpdateMOCS = true; | ||
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switch(Usage) | ||
{ | ||
case GMM_RESOURCE_USAGE_CCS: | ||
__GMM_ASSERT(pCachePolicy[Usage].L3 == 0) //Architecturally, CCS isn't L3-cacheable. | ||
MocsIdx = 60; | ||
break; | ||
case GMM_RESOURCE_USAGE_MOCS_62: | ||
__GMM_ASSERT(pCachePolicy[Usage].L3 == 0); //Architecturally, TR/Aux-TT node isn't L3-cacheable. | ||
MocsIdx = 62; | ||
break; | ||
case GMM_RESOURCE_USAGE_L3_EVICTION: | ||
MocsIdx = 63; | ||
break; | ||
case GMM_RESOURCE_USAGE_L3_EVICTION_SPECIAL: | ||
case GMM_RESOURCE_USAGE_CCS_MEDIA_WRITABLE: | ||
MocsIdx = 61; | ||
break; | ||
default: | ||
UpdateMOCS = false; | ||
break; | ||
} | ||
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return MocsIdx; | ||
} | ||
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//============================================================================= | ||
// | ||
// Function: __GmmGen12dGPUInitCachePolicy | ||
// | ||
// Desc: This function initializes the cache policy | ||
// | ||
// Parameters: pCachePolicy -> Ptr to array to be populated with the | ||
// mapping of usages -> cache settings. | ||
// | ||
// Return: GMM_STATUS | ||
// | ||
//----------------------------------------------------------------------------- | ||
GMM_STATUS GmmLib::GmmGen12dGPUCachePolicy::InitCachePolicy() | ||
{ | ||
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__GMM_ASSERTPTR(pCachePolicy, GMM_ERROR); | ||
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#define DEFINE_CACHE_ELEMENT(usage, l3, l3_scc, hdcl1) DEFINE_CP_ELEMENT(usage, 0, 0, l3, 0, 0, 0, 0, l3_scc, 0, 0, 0, hdcl1, 0, 0, 0, 0) | ||
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#include "GmmGen12dGPUCachePolicy.h" | ||
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#define L3_UNCACHEABLE (0x1) | ||
#define L3_WB_CACHEABLE (0x3) | ||
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#define DISABLE_SKIP_CACHING_CONTROL (0x0) | ||
#define ENABLE_SKIP_CACHING_CONTROL (0x1) | ||
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#define DISABLE_SELF_SNOOP_OVERRIDE (0x0) | ||
#define CLASS_SERVICE_ZERO (0x0) | ||
#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) | ||
{ | ||
SetUpMOCSTable(); | ||
} | ||
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{ | ||
// Define index of cache element | ||
uint32_t Usage = 0; | ||
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#if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL)) | ||
void *pKmdGmmContext = NULL; | ||
#if(defined(__GMM_KMD__)) | ||
pKmdGmmContext = pGmmGlobalContext->GetGmmKmdContext(); | ||
#endif | ||
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OverrideCachePolicy(pKmdGmmContext); | ||
#endif | ||
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// Process the cache policy and fill in the look up table | ||
for(; Usage < GMM_RESOURCE_USAGE_MAX; Usage++) | ||
{ | ||
bool CachePolicyError = false; | ||
bool SpecialMOCS = false; | ||
int32_t CPTblIdx = -1; | ||
uint32_t j = 0; | ||
uint32_t PTEValue = 0; | ||
GMM_CACHE_POLICY_TBL_ELEMENT UsageEle = {0}; | ||
uint32_t StartMocsIdx = 0; | ||
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switch(GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform)) | ||
{ | ||
case IGFX_DG1: | ||
StartMocsIdx = 1; // Index 0 is reserved for Error | ||
break; | ||
default: | ||
StartMocsIdx = 1; | ||
break; | ||
} | ||
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// No Special MOCS handling for next platform | ||
if(GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) <= IGFX_DG1) | ||
{ | ||
CPTblIdx = IsSpecialMOCSUsage((GMM_RESOURCE_USAGE_TYPE)Usage, SpecialMOCS); | ||
} | ||
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// Applicable upto only | ||
if(pCachePolicy[Usage].HDCL1 && | ||
(GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) <= IGFX_DG1)) | ||
{ | ||
UsageEle.HDCL1 = 1; | ||
} | ||
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UsageEle.L3.Reserved = 0; // Reserved bits zeroe'd, this is so we | ||
// we can compare the unioned L3.UshortValue. | ||
UsageEle.L3.ESC = DISABLE_SKIP_CACHING_CONTROL; | ||
UsageEle.L3.SCC = 0; | ||
UsageEle.L3.Cacheability = pCachePolicy[Usage].L3 ? L3_WB_CACHEABLE : L3_UNCACHEABLE; | ||
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if(pCachePolicy[Usage].L3_SCC) | ||
{ | ||
UsageEle.L3.ESC = ENABLE_SKIP_CACHING_CONTROL; | ||
UsageEle.L3.SCC = (uint16_t)pCachePolicy[Usage].L3_SCC; | ||
} | ||
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//Special-case MOCS handling for MOCS Table Index 60-63 | ||
if(CPTblIdx >= GMM_GEN12_MAX_NUMBER_MOCS_INDEXES) | ||
{ | ||
GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[CPTblIdx]; | ||
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if(SpecialMOCS && | ||
!(TblEle->L3.UshortValue == UsageEle.L3.UshortValue)) | ||
{ | ||
//Assert if being overwritten! | ||
__GMM_ASSERT(TblEle->L3.UshortValue == 0); | ||
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} | ||
} | ||
//For HDC L1 caching, MOCS Table index 48-59 should be used | ||
else if(UsageEle.HDCL1) | ||
{ | ||
for(j = GMM_GEN10_HDCL1_MOCS_INDEX_START; j <= CurrentMaxL1HdcMocsIndex; j++) | ||
{ | ||
GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[j]; | ||
if(TblEle->L3.UshortValue == UsageEle.L3.UshortValue && | ||
TblEle->HDCL1 == UsageEle.HDCL1) | ||
{ | ||
CPTblIdx = j; | ||
break; | ||
} | ||
} | ||
} | ||
else | ||
{ | ||
for(j = StartMocsIdx; j <= CurrentMaxMocsIndex; j++) | ||
{ | ||
if(pCachePolicy[Usage].L3 == 0) | ||
{ | ||
CPTblIdx = StartMocsIdx; | ||
break; | ||
} | ||
else | ||
{ | ||
GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[j]; | ||
if(TblEle->L3.UshortValue == UsageEle.L3.UshortValue) | ||
{ | ||
CPTblIdx = j; | ||
break; | ||
} | ||
} | ||
} | ||
} | ||
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// Didn't find the caching settings in one of the already programmed lookup table entries. | ||
// Need to add a new lookup table entry. | ||
if(CPTblIdx == -1) | ||
{ | ||
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{ | ||
GMM_ASSERTDPF(false, "CRITICAL ERROR: Cache Policy Usage value specified by Client is not defined in Fixed MOCS Table!"); | ||
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CachePolicyError = true; | ||
GMM_ASSERTDPF( | ||
"Cache Policy Init Error: Invalid Cache Programming, too many unique caching combinations" | ||
"(we only support GMM_GEN_MAX_NUMBER_MOCS_INDEXES = %d)", | ||
CurrentMaxMocsIndex); | ||
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// Set cache policy index to uncached. | ||
CPTblIdx = StartMocsIdx; | ||
} | ||
} | ||
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// PTE entries do not control caching on SKL+ (for legacy context) | ||
if(!GetUsagePTEValue(pCachePolicy[Usage], Usage, &PTEValue)) | ||
{ | ||
CachePolicyError = true; | ||
} | ||
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pCachePolicy[Usage].PTE.DwordValue = PTEValue; | ||
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pCachePolicy[Usage].MemoryObjectOverride.Gen12.Index = CPTblIdx; | ||
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pCachePolicy[Usage].Override = ALWAYS_OVERRIDE; | ||
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if(CachePolicyError) | ||
{ | ||
GMM_ASSERTDPF("Cache Policy Init Error: Invalid Cache Programming - Element %d", Usage); | ||
} | ||
} | ||
} | ||
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return GMM_SUCCESS; | ||
} | ||
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#pragma optimize("", on) | ||
//============================================================================= | ||
// | ||
// Function: SetUpMOCSTable | ||
// | ||
// Desc: For Gen12dGPU, Define new Fixed MOCS table | ||
// | ||
// Parameters: | ||
// | ||
// Return: GMM_STATUS | ||
// | ||
//----------------------------------------------------------------------------- | ||
void GmmLib::GmmGen12dGPUCachePolicy::SetUpMOCSTable() | ||
{ | ||
GMM_CACHE_POLICY_TBL_ELEMENT *pCachePolicyTlbElement = &(pGmmGlobalContext->GetCachePolicyTlbElement()[0]); | ||
CurrentMaxL1HdcMocsIndex = 0; | ||
CurrentMaxSpecialMocsIndex = 0; | ||
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#define GMM_DEFINE_MOCS(Index, L3_ESC, L3_SCC, L3_CC, _HDCL1) \ | ||
{ \ | ||
pCachePolicyTlbElement[Index].L3.ESC = L3_ESC; \ | ||
pCachePolicyTlbElement[Index].L3.SCC = L3_SCC; \ | ||
pCachePolicyTlbElement[Index].L3.Cacheability = L3_CC; \ | ||
pCachePolicyTlbElement[Index].LeCC.Cacheability = 1; \ | ||
pCachePolicyTlbElement[Index].LeCC.TargetCache = 0; \ | ||
pCachePolicyTlbElement[Index].LeCC.LRUM = 0; \ | ||
pCachePolicyTlbElement[Index].LeCC.AOM = 0; \ | ||
pCachePolicyTlbElement[Index].LeCC.ESC = 0; \ | ||
pCachePolicyTlbElement[Index].LeCC.SCC = 0; \ | ||
pCachePolicyTlbElement[Index].LeCC.PFM = 0; \ | ||
pCachePolicyTlbElement[Index].LeCC.SCF = 0; \ | ||
pCachePolicyTlbElement[Index].LeCC.CoS = CLASS_SERVICE_ZERO; \ | ||
pCachePolicyTlbElement[Index].LeCC.SelfSnoop = DISABLE_SELF_SNOOP_OVERRIDE; \ | ||
pCachePolicyTlbElement[Index].HDCL1 = _HDCL1; \ | ||
} | ||
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// clang-format off | ||
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if (GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) == IGFX_DG1) | ||
{ | ||
//Default MOCS Table | ||
for(int index = 0; index < GMM_MAX_NUMBER_MOCS_INDEXES; index++) | ||
{ // Index ESC SCC L3CC HDCL1 | ||
GMM_DEFINE_MOCS( index , 0 , 0 , 3 , 0 ) | ||
} | ||
// Fixed MOCS Table | ||
// Index ESC SCC L3CC HDCL1 | ||
GMM_DEFINE_MOCS( 0 , 0 , 0 , 1 , 0 ) | ||
GMM_DEFINE_MOCS( 1 , 0 , 0 , 1 , 0 ) | ||
GMM_DEFINE_MOCS( 2 , 0 , 0 , 0 , 0 ) | ||
GMM_DEFINE_MOCS( 3 , 0 , 0 , 0 , 0 ) | ||
GMM_DEFINE_MOCS( 4 , 0 , 0 , 0 , 0 ) | ||
GMM_DEFINE_MOCS( 5 , 0 , 0 , 3 , 0 ) | ||
GMM_DEFINE_MOCS( 6 , 1 , 1 , 3 , 0 ) | ||
GMM_DEFINE_MOCS( 7 , 1 , 3 , 3 , 0 ) | ||
GMM_DEFINE_MOCS( 8 , 1 , 7 , 3 , 0 ) | ||
GMM_DEFINE_MOCS( 48 , 0 , 0 , 3 , 1 ) | ||
GMM_DEFINE_MOCS( 49 , 0 , 0 , 1 , 1 ) | ||
GMM_DEFINE_MOCS( 60 , 0 , 0 , 1 , 0 ) | ||
GMM_DEFINE_MOCS( 61 , 0 , 0 , 1 , 0 ) | ||
GMM_DEFINE_MOCS( 62 , 0 , 0 , 1 , 0 ) | ||
GMM_DEFINE_MOCS( 63 , 0 , 0 , 1 , 0 ) | ||
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CurrentMaxMocsIndex = 8; | ||
CurrentMaxL1HdcMocsIndex = 49; | ||
CurrentMaxSpecialMocsIndex = 63; | ||
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} | ||
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// clang-format on | ||
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#undef GMM_DEFINE_MOCS | ||
} |
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