-
Notifications
You must be signed in to change notification settings - Fork 167
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add support for cmo extensions except prefetch.* instructions
(They will be overlapped by ORI instruciton).
- Loading branch information
Weiwei Li
committed
Jun 2, 2023
1 parent
17a9929
commit 5a4b823
Showing
25 changed files
with
381 additions
and
8 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| /*=======================================================================================*/ | ||
| /* RISCV Sail Model */ | ||
| /* */ | ||
| /* This Sail RISC-V architecture model, comprising all files and */ | ||
| /* directories except for the snapshots of the Lem and Sail libraries */ | ||
| /* in the prover_snapshots directory (which include copies of their */ | ||
| /* licences), is subject to the BSD two-clause licence below. */ | ||
| /* */ | ||
| /* Copyright (c) 2017-2023 */ | ||
| /* Prashanth Mundkur */ | ||
| /* Rishiyur S. Nikhil and Bluespec, Inc. */ | ||
| /* Jon French */ | ||
| /* Brian Campbell */ | ||
| /* Robert Norton-Wright */ | ||
| /* Alasdair Armstrong */ | ||
| /* Thomas Bauereiss */ | ||
| /* Shaked Flur */ | ||
| /* Christopher Pulte */ | ||
| /* Peter Sewell */ | ||
| /* Alexander Richardson */ | ||
| /* Hesham Almatary */ | ||
| /* Jessica Clarke */ | ||
| /* Microsoft, for contributions by Robert Norton-Wright and Nathaniel Wesley Filardo */ | ||
| /* Peter Rugg */ | ||
| /* Aril Computer Corp., for contributions by Scott Johnson */ | ||
| /* Philipp Tomsich */ | ||
| /* VRULL GmbH, for contributions by its employees */ | ||
| /* PLCT, for contributions by its employees */ | ||
| /* */ | ||
| /* All rights reserved. */ | ||
| /* */ | ||
| /* This software was developed by the above within the Rigorous */ | ||
| /* Engineering of Mainstream Systems (REMS) project, partly funded by */ | ||
| /* EPSRC grant EP/K008528/1, at the Universities of Cambridge and */ | ||
| /* Edinburgh. */ | ||
| /* */ | ||
| /* This software was developed by SRI International and the University of */ | ||
| /* Cambridge Computer Laboratory (Department of Computer Science and */ | ||
| /* Technology) under DARPA/AFRL contract FA8650-18-C-7809 ("CIFV"), and */ | ||
| /* under DARPA contract HR0011-18-C-0016 ("ECATS") as part of the DARPA */ | ||
| /* SSITH research programme. */ | ||
| /* */ | ||
| /* This project has received funding from the European Research Council */ | ||
| /* (ERC) under the European Union’s Horizon 2020 research and innovation */ | ||
| /* programme (grant agreement 789108, ELVER). */ | ||
| /* */ | ||
| /* */ | ||
| /* Redistribution and use in source and binary forms, with or without */ | ||
| /* modification, are permitted provided that the following conditions */ | ||
| /* are met: */ | ||
| /* 1. Redistributions of source code must retain the above copyright */ | ||
| /* notice, this list of conditions and the following disclaimer. */ | ||
| /* 2. Redistributions in binary form must reproduce the above copyright */ | ||
| /* notice, this list of conditions and the following disclaimer in */ | ||
| /* the documentation and/or other materials provided with the */ | ||
| /* distribution. */ | ||
| /* */ | ||
| /* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' */ | ||
| /* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED */ | ||
| /* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A */ | ||
| /* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR */ | ||
| /* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ | ||
| /* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ | ||
| /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF */ | ||
| /* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND */ | ||
| /* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, */ | ||
| /* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */ | ||
| /* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF */ | ||
| /* SUCH DAMAGE. */ | ||
| /*=======================================================================================*/ | ||
|
|
||
| /* ****************************************************************** */ | ||
| union clause ast = RISCV_ZICBOM : (cbop_zicbom, regidx) | ||
|
|
||
| mapping encdec_cbop : cbop_zicbom <-> bits(12) = { | ||
| CBO_CLEAN <-> 0b000000000001, | ||
| CBO_FLUSH <-> 0b000000000010, | ||
| CBO_INVAL <-> 0b000000000000 | ||
| } | ||
|
|
||
| mapping clause encdec = RISCV_ZICBOM(cbop, rs1) if haveZicbom() | ||
| <-> encdec_cbop(cbop) @ rs1 @ 0b010 @ 0b00000 @ 0b0001111 if haveZicbom() | ||
|
|
||
| mapping cbop_mnemonic : cbop_zicbom <-> string = { | ||
| CBO_CLEAN <-> "cbo.clean", | ||
| CBO_FLUSH <-> "cbo.flush", | ||
| CBO_INVAL <-> "cbo.inval" | ||
| } | ||
|
|
||
| mapping clause assembly = RISCV_ZICBOM(cbop, rs1) | ||
| <-> cbop_mnemonic(cbop) ^ spc() ^ "(" ^ reg_name(rs1) ^ ")" | ||
|
|
||
| val process_clean_inval : (regidx, cbop_zicbom) -> Retired effect {escape, rmem, rmemt, rreg, wmv, wmvt, wreg} | ||
| function process_clean_inval(rs1, cbop) = { | ||
| let rs1_val = X(rs1); | ||
| let cache_block_size = plat_cache_block_size(); | ||
| let begin_addr = rs1_val & ~(cache_block_size - EXTZ(0b1)); | ||
| let offset = begin_addr - rs1_val; | ||
| match ext_data_get_addr(rs1, offset, Read(Data), cache_block_size) { | ||
| Ext_DataAddr_Error(e) => { ext_handle_data_check_error(e); RETIRE_FAIL }, | ||
| Ext_DataAddr_OK(vaddr) => { | ||
| let res: option(ExceptionType) = match translateAddr(vaddr, Read(Data)) { | ||
| TR_Address(paddr, _) => { | ||
| match mem_read(Read(Data), paddr, 1, false, false, false) { | ||
| MemValue(_) => None(), | ||
| MemException(e) => Some(e) | ||
| } | ||
| }, | ||
| TR_Failure(e, _) => Some(e) | ||
| }; | ||
| match res { | ||
| None() => RETIRE_SUCCESS, // do nothing for cbop currently | ||
| Some(e) => { | ||
| match (e) { | ||
| E_Load_Access_Fault() => { handle_mem_exception(vaddr, E_SAMO_Access_Fault()); RETIRE_FAIL }, | ||
| E_Load_Page_Fault() => { handle_mem_exception(vaddr, E_SAMO_Page_Fault()); RETIRE_FAIL } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| function cbo_clean_flush_enable(p : Privilege) -> bool = | ||
| ~((p != Machine & menvcfg.CBCFE() == 0b0) | (p == User & senvcfg.CBCFE() == 0b0)) | ||
|
|
||
| function cbop_for_cbo_inval(p : Privilege) -> option(cbop_zicbom) = { | ||
| let illegal = ((p != Machine) & (menvcfg.CBIE() == 0b00)) | | ||
| ((p == User) & (senvcfg.CBIE() == 0b00)); | ||
| let flush = ((p != Machine) & (menvcfg.CBIE() == 0b01)) | | ||
| ((p == User) & (senvcfg.CBIE() == 0b01)); | ||
| if illegal then None() | ||
| else if flush then Some(CBO_FLUSH) | ||
| else Some(CBO_INVAL) | ||
| } | ||
|
|
||
| function clause execute(RISCV_ZICBOM(cbop, rs1)) = { | ||
| let cbcfe = cbo_clean_flush_enable(cur_privilege); | ||
| let final_op : option(cbop_zicbom) = match (cbop, cbcfe) { | ||
| (CBO_CLEAN, true) => Some(CBO_CLEAN), | ||
| (CBO_CLEAN, false) => None(), | ||
| (CBO_FLUSH, true) => Some(CBO_FLUSH), | ||
| (CBO_FLUSH, false) => None(), | ||
| (CBO_INVAL, _) => cbop_for_cbo_inval(cur_privilege) | ||
| }; | ||
| match final_op { | ||
| None() => { handle_illegal(); RETIRE_FAIL }, | ||
| Some(cbop) => process_clean_inval(rs1, cbop) | ||
| } | ||
| } |
Oops, something went wrong.