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066ff47261
* remove parameter BranchPredictor Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> * Remove references to the removed parameter(s) from examples Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> * remove references to the removed parameters from compliance verification Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> * remove references to the removed parameters from core lists Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> * remove references to the removed parameters from the example configurations Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> * Remove references to the removed parameter from documentation Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> * Remove related and dead code Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> --------- Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com> Co-authored-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
94 lines
3.6 KiB
YAML
94 lines
3.6 KiB
YAML
# Copyright lowRISC contributors.
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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# Ibex configurations files, holds the parameter sets that are tested under CI.
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# Each configuration must specify the same set of parameters
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# Two-stage pipeline without additional branch target ALU and 3 cycle multiplier
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# (4 cycles for mulh), resulting in 2 stall cycles for mul (3 for mulh)
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small:
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RV32E : 0
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RV32M : "cve2_pkg::RV32MFast"
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RV32B : "cve2_pkg::RV32BNone"
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RegFile : "cve2_pkg::RegFileFF"
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WritebackStage : 0
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PMPEnable : 0
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PMPGranularity : 0
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PMPNumRegions : 4
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# Configuration to match that used in the OpenTitan project
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opentitan:
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RV32E : 0
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RV32M : "cve2_pkg::RV32MSingleCycle"
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RV32B : "cve2_pkg::RV32BOTEarlGrey"
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RegFile : "cve2_pkg::RegFileFF"
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WritebackStage : 1
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PMPEnable : 1
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PMPGranularity : 0
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PMPNumRegions : 16
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# ===============================
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# * EXPERIMENTAL CONFIGURATIONS *
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# ===============================
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# Three-stage pipeline with additional branch traget ALU and 1 cycle multiplier
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# (2 cycles for mulh) so mul does not stall (mulh stall 1 cycles). This is the
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# maximum performance configuration.
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experimental-maxperf:
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RV32E : 0
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RV32M : "cve2_pkg::RV32MSingleCycle"
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RV32B : "cve2_pkg::RV32BNone"
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RegFile : "cve2_pkg::RegFileFF"
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WritebackStage : 1
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PMPEnable : 0
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PMPGranularity : 0
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PMPNumRegions : 4
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# experimental-maxperf config above plus PMP enabled with 16 regions.
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experimental-maxperf-pmp:
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RV32E : 0
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RV32M : "cve2_pkg::RV32MSingleCycle"
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RV32B : "cve2_pkg::RV32BNone"
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RegFile : "cve2_pkg::RegFileFF"
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WritebackStage : 1
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PMPEnable : 1
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PMPGranularity : 0
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PMPNumRegions : 16
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# experimental-maxperf-pmp config above with balanced bitmanip extension
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experimental-maxperf-pmp-bmbalanced:
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RV32E : 0
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RV32M : "cve2_pkg::RV32MSingleCycle"
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RV32B : "cve2_pkg::RV32BBalanced"
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RegFile : "cve2_pkg::RegFileFF"
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WritebackStage : 1
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PMPEnable : 1
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PMPGranularity : 0
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PMPNumRegions : 16
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# experimental-maxperf-pmp config above with full bitmanip extension
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experimental-maxperf-pmp-bmfull:
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RV32E : 0
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RV32M : "cve2_pkg::RV32MSingleCycle"
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RV32B : "cve2_pkg::RV32BFull"
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RegFile : "cve2_pkg::RegFileFF"
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WritebackStage : 1
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PMPEnable : 1
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PMPGranularity : 0
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PMPNumRegions : 16
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# experimental-maxperf with branch predictor switched on. This exists to allow
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# easy use of Ibex with the branch predictor in particular for CI runs. The
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# branch predictor will be enabled in all the 'maxperf' configs after further
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# development.
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experimental-branch-predictor:
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RV32E : 0
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RV32M : "cve2_pkg::RV32MSingleCycle"
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RV32B : "cve2_pkg::RV32BNone"
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RegFile : "cve2_pkg::RegFileFF"
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WritebackStage : 1
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PMPEnable : 0
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PMPGranularity : 0
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PMPNumRegions : 4
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