| # Copyright (c) 2022 Jarvis Jia, Jing Qu, Matt Sinclair, & Mingyuan Xiang |
| # All Rights Reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer; |
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| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution; |
| # neither the name of the copyright holders nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| # This test is targeting loads. |
| # Access pattern: A, C, E, G, A, C, I, K, M, O, E, G, E, G |
| # Each letter represents a 64-byte address range. |
| |
| # The [] indicate two different sets, and each set has four ways. |
| # [set0way0, set0way1, set0way2, set0way3], |
| # [set1way0, set1way1, set1way2, set1way3], |
| # If you have a 512B cache with 4-way associativity, |
| # and each cache line is 64B. With LRU replacement policy, you will observe: |
| # m, m, m, m, h, h, m, m, m, m, m, m, h, h, where 'h' means hit and 'm' |
| # means miss. |
| |
| # Explanation of this result: |
| # A, C, E, G are misses, now the cache stores ([A*, C, E, G],[ , , ,]). |
| # A is marked as the LRU address range. |
| # A, C are hits, and the cache stores ([A, C, E*, G],[ , , ,]). |
| # I searches for a victim and selects E. Now the cache stores ([A, C, I, G*],[ , , ,]). |
| # K searches for a victim and selects G. Now the cache stores (([A*, C, I, K],[ , , ,]). |
| # M searches for a victim and selects A. Now the cache stores (([M, C*, I, K],[ , , ,]). |
| # O searches for a victim and selects C. Now the cache stores (([M, O, I*, K],[ , , ,]). |
| # E searches for a victim and selects I. Now the cache stores (([M, O, E, K*],[ , , ,]). |
| # G searches for a victim and selects K. Now the cache stores (([M*, O, E, G],[ , , ,]). |
| # E,G are hits. |
| |
| from m5.objects.ReplacementPolicies import LRURP as rp |
| |
| |
| def python_generator(generator): |
| yield generator.createLinear(60000, 0, 63, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 128, 191, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 256, 319, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 384, 447, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 0, 63, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 128, 191, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 512, 575, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 640, 703, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 768, 831, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 896, 959, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 256, 319, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 384, 447, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 256, 319, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(60000, 384, 447, 64, 30000, 30000, 100, 0) |
| yield generator.createLinear(30000, 0, 0, 0, 30000, 30000, 100, 0) |
| |
| yield generator.createExit(0) |