1 /*==============================================================================
2 Copyright(c) 2017 Intel Corporation
3
4 Permission is hereby granted, free of charge, to any person obtaining a
5 copy of this software and associated documentation files(the "Software"),
6 to deal in the Software without restriction, including without limitation
7 the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 and / or sell copies of the Software, and to permit persons to whom the
9 Software is furnished to do so, subject to the following conditions:
10
11 The above copyright notice and this permission notice shall be included
12 in all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 OTHER DEALINGS IN THE SOFTWARE.
21 ============================================================================*/
22
23 #include "GmmGen9CachePolicyULT.h"
24
25 using namespace std;
26
27 /////////////////////////////////////////////////////////////////////////////////////
28 /// Sets up common environment for Cache Policy fixture tests. this is called once per
29 /// test case before executing all tests under resource fixture test case.
30 /// It also calls SetupTestCase from CommonULT to initialize global context and others.
31 ///
32 /////////////////////////////////////////////////////////////////////////////////////
SetUpTestCase()33 void CTestGen9CachePolicy::SetUpTestCase()
34 {
35 GfxPlatform.eProductFamily = IGFX_SKYLAKE;
36 GfxPlatform.eRenderCoreFamily = IGFX_GEN9_CORE;
37
38 AllocateAdapterInfo();
39
40 pGfxAdapterInfo->SystemInfo.L3CacheSizeInKb = 768;
41 pGfxAdapterInfo->SystemInfo.LLCCacheSizeInKb = 2 * 1024; //2 MB
42 pGfxAdapterInfo->SystemInfo.EdramSizeInKb = 128 * 1024; //128 MB
43 const_cast<SKU_FEATURE_TABLE &>(pGfxAdapterInfo->SkuTable).FtrEDram = 1;
44
45 CommonULT::SetUpTestCase();
46
47 printf("%s\n", __FUNCTION__);
48 }
49
50 /////////////////////////////////////////////////////////////////////////////////////
51 /// cleans up once all the tests finish execution. It also calls TearDownTestCase
52 /// from CommonULT to destroy global context and others.
53 ///
54 /////////////////////////////////////////////////////////////////////////////////////
TearDownTestCase()55 void CTestGen9CachePolicy::TearDownTestCase()
56 {
57 printf("%s\n", __FUNCTION__);
58
59 CommonULT::TearDownTestCase();
60 }
61
CheckL3CachePolicy()62 void CTestGen9CachePolicy::CheckL3CachePolicy()
63 {
64 const uint32_t L3_WB_CACHEABLE = 0x3;
65 const uint32_t L3_UNCACHEABLE = 0x1;
66
67 // Check Usage MOCS index against MOCS settings
68 for(uint32_t Usage = GMM_RESOURCE_USAGE_UNKNOWN; Usage < GMM_RESOURCE_USAGE_MAX; Usage++)
69 {
70 GMM_CACHE_POLICY_ELEMENT ClientRequest = pGmmULTClientContext->GetCachePolicyElement((GMM_RESOURCE_USAGE_TYPE)Usage);
71 uint32_t AssignedMocsIdx = ClientRequest.MemoryObjectOverride.Gen9.Index;
72 GMM_CACHE_POLICY_TBL_ELEMENT Mocs = pGmmULTClientContext->GetCachePolicyTlbElement(AssignedMocsIdx);
73
74 EXPECT_EQ(0, Mocs.L3.ESC) << "Usage# " << Usage << ": ESC is non-zero";
75 EXPECT_EQ(0, Mocs.L3.SCC) << "Usage# " << Usage << ": SCC is non-zero";
76 EXPECT_EQ(0, Mocs.L3.Reserved) << "Usage# " << Usage << ": Reserved field is non-zero";
77
78 if(ClientRequest.L3)
79 {
80 EXPECT_EQ(L3_WB_CACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
81 }
82 else
83 {
84 EXPECT_EQ(L3_UNCACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
85 }
86 }
87 }
88
89
TEST_F(CTestGen9CachePolicy,TestL3CachePolicy)90 TEST_F(CTestGen9CachePolicy, TestL3CachePolicy)
91 {
92 CheckL3CachePolicy();
93 }
94
95
CheckLlcEdramCachePolicy()96 void CTestGen9CachePolicy::CheckLlcEdramCachePolicy()
97 {
98 const uint32_t TargetCache_ELLC = 0;
99 const uint32_t TargetCache_LLC = 1;
100 const uint32_t TargetCache_LLC_ELLC = 2;
101
102 const uint32_t LeCC_UNCACHEABLE = 0x1;
103 const uint32_t LeCC_WB_CACHEABLE = 0x3;
104
105 // Check Usage MOCS index against MOCS settings
106 for(uint32_t Usage = GMM_RESOURCE_USAGE_UNKNOWN; Usage < GMM_RESOURCE_USAGE_MAX; Usage++)
107 {
108 GMM_CACHE_POLICY_ELEMENT ClientRequest = pGmmULTClientContext->GetCachePolicyElement((GMM_RESOURCE_USAGE_TYPE)Usage);
109 uint32_t AssignedMocsIdx = ClientRequest.MemoryObjectOverride.Gen9.Index;
110 GMM_CACHE_POLICY_TBL_ELEMENT Mocs = pGmmULTClientContext->GetCachePolicyTlbElement(AssignedMocsIdx);
111
112 // Check for unused fields
113 EXPECT_EQ(0, Mocs.LeCC.AOM) << "Usage# " << Usage << ": AOM is non-zero";
114 EXPECT_EQ(0, Mocs.LeCC.CoS) << "Usage# " << Usage << ": CoS is non-zero";
115 EXPECT_EQ(0, Mocs.LeCC.PFM) << "Usage# " << Usage << ": PFM is non-zero";
116 EXPECT_EQ(0, Mocs.LeCC.SCC) << "Usage# " << Usage << ": SCC is non-zero";
117 EXPECT_EQ(0, Mocs.LeCC.SCF) << "Usage# " << Usage << ": SCF is non-zero";
118 EXPECT_EQ(0, Mocs.LeCC.SelfSnoop) << "Usage# " << Usage << ": Self Snoop is non-zero";
119 EXPECT_EQ(0, Mocs.LeCC.ESC) << "Usage# " << Usage << ": ESC is non-zero";
120 EXPECT_EQ(0, Mocs.LeCC.Reserved) << "Usage# " << Usage << ": Reserved field is non-zero";
121
122 // Check for age
123 EXPECT_EQ(ClientRequest.AGE, Mocs.LeCC.LRUM) << "Usage# " << Usage << ": Incorrect AGE settings";
124
125 if(!ClientRequest.LLC && !ClientRequest.ELLC) // Uncached
126 {
127 EXPECT_EQ(LeCC_UNCACHEABLE, Mocs.LeCC.Cacheability) << "Usage# " << Usage << ": Incorrect LLC/eDRAM cachebility setting";
128 }
129 else
130 {
131 EXPECT_EQ(LeCC_WB_CACHEABLE, Mocs.LeCC.Cacheability) << "Usage# " << Usage << ": Incorrect LLC/eDRAM cachebility setting";
132
133 if(ClientRequest.LLC && !ClientRequest.ELLC) // LLC only
134 {
135 EXPECT_EQ(TargetCache_LLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
136 }
137 else if(!ClientRequest.LLC && ClientRequest.ELLC) // eLLC only
138 {
139 EXPECT_EQ(TargetCache_ELLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
140 }
141 else
142 {
143 EXPECT_EQ(TargetCache_LLC_ELLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
144 }
145 }
146 }
147 }
148
TEST_F(CTestGen9CachePolicy,TestLlcEdramCachePolicy)149 TEST_F(CTestGen9CachePolicy, TestLlcEdramCachePolicy)
150 {
151 CheckLlcEdramCachePolicy();
152 }
153