1 /*==============================================================================
2 Copyright(c) 2019 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 "GmmGen12CachePolicyULT.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 CTestGen12CachePolicy::SetUpTestCase()
34 {
35 GfxPlatform.eProductFamily = IGFX_TIGERLAKE_LP;
36 GfxPlatform.eRenderCoreFamily = IGFX_GEN12_CORE;
37
38 AllocateAdapterInfo();
39
40 pGfxAdapterInfo->SystemInfo.L3CacheSizeInKb = 3072;
41
42 const_cast<SKU_FEATURE_TABLE &>(pGfxAdapterInfo->SkuTable).FtrEDram = false;
43 const_cast<SKU_FEATURE_TABLE &>(pGfxAdapterInfo->SkuTable).FtrLLCBypass = 0;
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 CTestGen12CachePolicy::TearDownTestCase()
56 {
57 printf("%s\n", __FUNCTION__);
58
59 CommonULT::TearDownTestCase();
60 }
61
CheckL3CachePolicy()62 void CTestGen12CachePolicy::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.Gen12.Index;
72 GMM_CACHE_POLICY_TBL_ELEMENT Mocs = pGmmULTClientContext->GetCachePolicyTlbElement(AssignedMocsIdx);
73
74 //printf("Usage: %d --> Index: [%d]\n", Usage, AssignedMocsIdx);
75
76 EXPECT_EQ(0, Mocs.L3.ESC) << "Usage# " << Usage << ": ESC is non-zero";
77 EXPECT_EQ(0, Mocs.L3.SCC) << "Usage# " << Usage << ": SCC is non-zero";
78 EXPECT_EQ(0, Mocs.L3.Reserved) << "Usage# " << Usage << ": Reserved field is non-zero";
79
80 // Check if Mocs Index is not greater than GMM_MAX_NUMBER_MOCS_INDEXES
81 EXPECT_GT(GMM_MAX_NUMBER_MOCS_INDEXES, AssignedMocsIdx) << "Usage# " << Usage << ": MOCS Index greater than MAX allowed (63)";
82
83 if(ClientRequest.L3Eviction == 0x2) //63
84 {
85 if((GMM_RESOURCE_USAGE_TYPE)Usage == GMM_RESOURCE_USAGE_L3_EVICTION)
86 {
87 EXPECT_EQ(AssignedMocsIdx, 63) << "Usage# " << Usage << ": Incorrect Index for L3Eviction type# " << ClientRequest.L3Eviction;
88 EXPECT_EQ(0, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for L3Eviction type# " << ClientRequest.L3Eviction;
89 }
90 else
91 {
92 EXPECT_NE(AssignedMocsIdx, 63) << "Usage# " << Usage << ": Incorrect Index for L3Eviction type# " << ClientRequest.L3Eviction;
93 EXPECT_EQ(1, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for L3Eviction type# " << ClientRequest.L3Eviction;
94 }
95 }
96 else if(ClientRequest.L3Eviction == 0x3) //61
97 {
98 EXPECT_EQ(AssignedMocsIdx, 61) << "Usage# " << Usage << ": Incorrect Index for L3Eviction type# " << ClientRequest.L3Eviction;
99 EXPECT_EQ(1, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for L3Eviction type# " << ClientRequest.L3Eviction;
100 }
101 else if(Usage == GMM_RESOURCE_USAGE_CCS) //60
102 {
103 EXPECT_EQ(AssignedMocsIdx, 60) << "Usage# " << Usage << ": Incorrect Index for CCS";
104 EXPECT_EQ(0, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for CCS";
105 }
106 else if(Usage == GMM_RESOURCE_USAGE_MOCS_62) //62
107 {
108 EXPECT_EQ(AssignedMocsIdx, 62) << "Usage# " << Usage << ": Incorrect Index for MOCS_62";
109 EXPECT_EQ(0, ClientRequest.L3) << "Usage# " << Usage << ": Incorrect L3 cacheability for MOCS#62";
110 }
111 // Check of assigned Index setting is appropriate for HDCL1 setting
112 else if(ClientRequest.HDCL1)
113 {
114 EXPECT_GE(AssignedMocsIdx, GMM_GEN10_HDCL1_MOCS_INDEX_START) << "Usage# " << Usage << ": Incorrect Index for HDCL1 setting";
115 }
116 else
117 {
118 EXPECT_LT(AssignedMocsIdx, GMM_GEN10_HDCL1_MOCS_INDEX_START) << "Usage# " << Usage << ": Incorrect Index for HDCL1 setting";
119 }
120
121 if(ClientRequest.L3)
122 {
123 EXPECT_EQ(L3_WB_CACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
124 }
125 else
126 {
127 EXPECT_EQ(L3_UNCACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
128 }
129 }
130 }
131
132
TEST_F(CTestGen12CachePolicy,TestL3CachePolicy)133 TEST_F(CTestGen12CachePolicy, TestL3CachePolicy)
134 {
135 CheckL3CachePolicy();
136 }
137
138
CheckLlcEdramCachePolicy()139 void CTestGen12CachePolicy::CheckLlcEdramCachePolicy()
140 {
141 const uint32_t TargetCache_LLC = 1;
142
143 const uint32_t LeCC_UNCACHEABLE = 0x0;
144 const uint32_t LeCC_WC_UNCACHEABLE = 0x1;
145 const uint32_t LeCC_WB_CACHEABLE = 0x3;
146 const uint32_t LeCC_WT_CACHEABLE = 0x2;
147
148 // Check Usage MOCS index against MOCS settings
149 for(uint32_t Usage = GMM_RESOURCE_USAGE_UNKNOWN; Usage < GMM_RESOURCE_USAGE_MAX; Usage++)
150 {
151 GMM_CACHE_POLICY_ELEMENT ClientRequest = pGmmULTClientContext->GetCachePolicyElement((GMM_RESOURCE_USAGE_TYPE)Usage);
152 uint32_t AssignedMocsIdx = ClientRequest.MemoryObjectOverride.Gen12.Index;
153 GMM_CACHE_POLICY_TBL_ELEMENT Mocs = pGmmULTClientContext->GetCachePolicyTlbElement(AssignedMocsIdx);
154
155 // Check for unused fields
156 EXPECT_EQ(0, Mocs.LeCC.AOM) << "Usage# " << Usage << ": AOM is non-zero";
157 EXPECT_EQ(0, Mocs.LeCC.CoS) << "Usage# " << Usage << ": CoS is non-zero";
158 EXPECT_EQ(0, Mocs.LeCC.PFM) << "Usage# " << Usage << ": PFM is non-zero";
159 EXPECT_EQ(0, Mocs.LeCC.SCC) << "Usage# " << Usage << ": SCC is non-zero";
160 // SCF field might be set for LKF/Gen12+ platforms;
161 EXPECT_EQ(0, Mocs.LeCC.SCF & !const_cast<SKU_FEATURE_TABLE &>(pGfxAdapterInfo->SkuTable).FtrLLCBypass) << "Usage# " << Usage << ": SCF is non-zero";
162 EXPECT_EQ(0, Mocs.LeCC.ESC) << "Usage# " << Usage << ": ESC is non-zero";
163 EXPECT_EQ(0, Mocs.LeCC.Reserved) << "Usage# " << Usage << ": Reserved field is non-zero";
164
165 // Check for age
166 EXPECT_EQ(ClientRequest.AGE, Mocs.LeCC.LRUM) << "Usage# " << Usage << ": Incorrect AGE settings";
167
168 // Check for Snoop Setting
169 EXPECT_EQ(ClientRequest.SSO, Mocs.LeCC.SelfSnoop) << "Usage# " << Usage << ": Self Snoop is non-zero";
170
171 // Check if Mocs Index is not greater than GMM_MAX_NUMBER_MOCS_INDEXES
172 EXPECT_GT(GMM_MAX_NUMBER_MOCS_INDEXES, AssignedMocsIdx) << "Usage# " << Usage << ": MOCS Index greater than MAX allowed (63)";
173
174 if(ClientRequest.L3Eviction == 0x2) //63
175 {
176 GMM_CACHE_POLICY_ELEMENT MOCS63 = pGmmULTClientContext->GetCachePolicyElement(GMM_RESOURCE_USAGE_L3_EVICTION);
177 if((GMM_RESOURCE_USAGE_TYPE)Usage == GMM_RESOURCE_USAGE_L3_EVICTION)
178 {
179 EXPECT_EQ(AssignedMocsIdx, 63) << "Usage# " << Usage << ": Incorrect Index for L3Eviction type# " << ClientRequest.L3Eviction;
180 }
181 else
182 {
183 MOCS63.L3 = 1; //Override L3 to test , since Hw forces it to L3-uncached
184 EXPECT_NE(AssignedMocsIdx, 63) << "Usage# " << Usage << ": Incorrect Index for L3Eviction type# " << ClientRequest.L3Eviction;
185 EXPECT_EQ(MOCS63.Value, ClientRequest.Value) << "Usage# " << Usage << ": Incorrect usage for L3Eviction type# " << ClientRequest.L3Eviction;
186 }
187 }
188 else if(ClientRequest.L3Eviction == 0x3) //61
189 {
190 GMM_CACHE_POLICY_ELEMENT MOCS61 = pGmmULTClientContext->GetCachePolicyElement(GMM_RESOURCE_USAGE_L3_EVICTION_SPECIAL);
191 EXPECT_EQ(AssignedMocsIdx, 61) << "Usage# " << Usage << ": Incorrect Index for L3Eviction type# " << ClientRequest.L3Eviction;
192 EXPECT_EQ(0, ClientRequest.LLC) << "Usage# " << Usage << ": Incorrect LLC cacheability for L3Eviction type# " << ClientRequest.L3Eviction;
193 EXPECT_EQ(MOCS61.Value, ClientRequest.Value) << "Usage# " << Usage << ": Incorrect usage for L3Eviction type# " << ClientRequest.L3Eviction;
194 }
195 else if(Usage == GMM_RESOURCE_USAGE_CCS) //60
196 {
197 EXPECT_EQ(AssignedMocsIdx, 60) << "Usage# " << Usage << ": Incorrect Index for CCS";
198 }
199 else if(Usage == GMM_RESOURCE_USAGE_MOCS_62) //62
200 {
201 EXPECT_EQ(AssignedMocsIdx, 62) << "Usage# " << Usage << ": Incorrect Index for MOCS_62";
202 }
203 // Check of assigned Index setting is appropriate for HDCL1 setting
204 else if(ClientRequest.HDCL1)
205 {
206 EXPECT_GE(AssignedMocsIdx, GMM_GEN10_HDCL1_MOCS_INDEX_START) << "Usage# " << Usage << ": Incorrect Index for HDCL1 setting";
207 }
208 else
209 {
210 EXPECT_LT(AssignedMocsIdx, GMM_GEN10_HDCL1_MOCS_INDEX_START) << "Usage# " << Usage << ": Incorrect Index for HDCL1 setting";
211 }
212
213 if(!ClientRequest.LLC && !ClientRequest.ELLC) // Uncached
214 {
215 EXPECT_EQ(LeCC_WC_UNCACHEABLE, Mocs.LeCC.Cacheability) << "Usage# " << Usage << ": Incorrect LLC/eDRAM cachebility setting";
216 }
217 else
218 {
219 if(ClientRequest.LLC) // LLC only
220 {
221 EXPECT_EQ(TargetCache_LLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
222
223 EXPECT_EQ(LeCC_WB_CACHEABLE, Mocs.LeCC.Cacheability) << "Usage# " << Usage << ": Incorrect LLC cachebility setting";
224 }
225 else
226 {
227 EXPECT_EQ(TargetCache_LLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
228
229 EXPECT_EQ(LeCC_WC_UNCACHEABLE, Mocs.LeCC.Cacheability) << "Usage# " << Usage << ": Incorrect LLC cachebility setting";
230 }
231 }
232 }
233 }
234
TEST_F(CTestGen12CachePolicy,TestLlcEdramCachePolicy)235 TEST_F(CTestGen12CachePolicy, TestLlcEdramCachePolicy)
236 {
237 CheckLlcEdramCachePolicy();
238 }
239