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sw: Add LLC test and bump Cheshire with LLC fix
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -46,7 +46,7 @@ packages: | |
| dependencies: | ||
| - axi_slice | ||
| axi_llc: | ||
| revision: 7d7fc1349d4915a657de535a491bc26fbf0d2cfa | ||
| revision: 7c681312ae1eb912052de98ddaf5d19e1c2b76ff | ||
| version: null | ||
| source: | ||
| Git: https://github.com/pulp-platform/axi_llc | ||
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@@ -114,7 +114,7 @@ packages: | |
| Git: [email protected]:AlSaqr-platform/can_bus.git | ||
| dependencies: [] | ||
| cheshire: | ||
| revision: 0c95210cf242c384fafe3019e84b8974c3ff1e92 | ||
| revision: 0071e68fdca331a81e9467ea11be222fefeae4cc | ||
| version: null | ||
| source: | ||
| Git: https://github.com/pulp-platform/cheshire.git | ||
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@@ -9,11 +9,12 @@ package: | |
| - "Alessandro Ottaviano <[email protected]>" | ||
| - "Robert Balas <[email protected]>" | ||
| - "Yvan Tortorella <[email protected]>" | ||
| - "Cyril Koenig <[email protected]>" | ||
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| dependencies: | ||
| register_interface: { git: https://github.com/pulp-platform/register_interface.git, version: 0.4.2 } | ||
| axi: { git: https://github.com/pulp-platform/axi.git, version: 0.39.1 } | ||
| cheshire: { git: https://github.com/pulp-platform/cheshire.git, rev: 0c95210cf242c384fafe3019e84b8974c3ff1e92 } # branch: aottaviano/carfield | ||
| cheshire: { git: https://github.com/pulp-platform/cheshire.git, rev: 0071e68fdca331a81e9467ea11be222fefeae4cc } # branch: aottaviano/carfield | ||
| hyperbus: { git: https://github.com/pulp-platform/hyperbus.git, rev: f039e601c8b6590181734e6d26ff8b77aa380412 } # branch: chi/add_fsm_with_Tcsh | ||
| dyn_mem: { git: https://github.com/pulp-platform/dyn_spm.git, rev: 480590062742230dc9bd4050358a15b4747bdf34 } # branch: main | ||
| safety_island: { git: https://github.com/pulp-platform/safety_island.git, rev: aaef55c798ab53560faaf451a86668fa1e6d0f3b } # branch: carfield | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,99 @@ | ||
| // Copyright 2023 ETH Zurich and University of Bologna. | ||
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // Cyril Koenig <[email protected]> | ||
| // | ||
| // Simple program to test LLC enable, disable, flush and bypass | ||
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| #include "regs/cheshire.h" | ||
| #include "dif/clint.h" | ||
| #include "params.h" | ||
| #include "util.h" | ||
| #include "car_memory_map.h" | ||
| #include "car_util.h" | ||
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| volatile uint32_t dram_data_cached[64]; | ||
| volatile uint32_t *dram_data_uncached; | ||
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| int main(void) { | ||
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| // Init the HW | ||
| car_init_start(); | ||
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| // Disable CVA6 cache | ||
| fence(); | ||
| asm volatile ("csrwi 0x701, 0" :: ); | ||
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| dram_data_uncached = (uint32_t *)((void *)dram_data_cached + CAR_LLC_BYPASS_OFFSET); | ||
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| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_uncached[i] = dram_data_uncached[i] + 1; | ||
| if(dram_data_uncached[i] != 1) goto fail; | ||
| } | ||
| fence(); | ||
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| llc_enable(); | ||
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| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_cached[i] = dram_data_cached[i] + 10; | ||
| if(dram_data_cached[i] != 11) goto fail; | ||
| } | ||
| fence(); | ||
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| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_uncached[i] = dram_data_uncached[i] + 1; | ||
| if(dram_data_uncached[i] != 2) goto fail; | ||
| } | ||
| fence(); | ||
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| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_cached[i] = dram_data_cached[i] + 10; | ||
| if(dram_data_cached[i] != 21) goto fail; | ||
| } | ||
| fence(); | ||
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| fence(); | ||
| llc_flush(); | ||
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| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_uncached[i] = dram_data_uncached[i] + 1; | ||
| if(dram_data_uncached[i] != 22) goto fail; | ||
| } | ||
| fence(); | ||
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| // The LLC has been flushed, thus will have the latest value (22) | ||
| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_cached[i] = dram_data_cached[i] + 10; | ||
| if(dram_data_cached[i] != 32) goto fail; | ||
| } | ||
| fence(); | ||
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| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_uncached[i] = dram_data_uncached[i] + 1; | ||
| if(dram_data_uncached[i] != 23) goto fail; | ||
| } | ||
| fence(); | ||
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| // From now on, we are not anymore synched with the DRAM content | ||
| for ( int i = 0; i < 64 ; i++ ) { | ||
| dram_data_cached[i] = dram_data_cached[i] + 10; | ||
| if(dram_data_cached[i] != 42) goto fail; | ||
| } | ||
| fence(); | ||
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| llc_disable(); | ||
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| for ( int i = 0; i < 64 ; i++ ) { | ||
| if(dram_data_cached[i] != dram_data_uncached[i]) goto fail; | ||
| } | ||
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| // Stress a bit more the LLC with the icache | ||
| llc_enable(); | ||
| fencei(); | ||
| llc_disable(); | ||
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| return 0; | ||
| fail: | ||
| return 1; | ||
| } |