Ross Thompson
fe378f2692
Added function tracking to linux test bench.
2021-08-24 11:08:46 -05:00
Ross Thompson
0cc47f3daf
Modified the preformance counter's InstRet to include ECALL and EBREAK by changing the hazard logic so these instructions don't self flush the W stage.
2021-08-23 15:46:17 -05:00
Ross Thompson
c31b7b4dc5
Wally previously was overcounting retired instructions when they were flushed.
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InstrValidM was used to control when the counter was updated. However this is
not suppress the counter when the instruction is flushed in the M stage.
2021-08-23 12:24:03 -05:00
Ross Thompson
9fdcc6c9ca
Renamed output of qemu trace.
2021-08-22 22:56:34 -05:00
Ross Thompson
2825074114
Confirmed David's changes to the interrupt code.
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When a timer interrupt occurs it should be routed to the machine interrupt
pending MTIP even if MIDELEG[5] = 1 when the current privilege mode is
Machine. This is true for all the interrupts. The interrupt should not be
masked even though it is delegated to a lower privilege. Since the CPU
is currently in machine mode the interrupt must be taken if MIE.
Additionally added a new qemu script which pipes together all the parsing and
post processing scripts to produce the singular all.txt trace without the
massivie intermediate files.
2021-08-22 21:36:31 -05:00
David Harris
4677b4bb38
possible interrupt code
2021-08-22 17:02:40 -04:00
Ross Thompson
ddbc659d7b
Fixed bug with coremark do file. When I moved the testbench to have a common set of files i forgot to remove the old path reference to function_radix.sv in wally-coremark_bare.do.
2021-08-19 10:33:11 -05:00
Ross Thompson
65870877c3
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-08-17 16:06:54 -05:00
Ross Thompson
91b51c698e
Minor changes to dcache.
2021-08-17 15:22:10 -05:00
Katherine Parry
c8847b27e8
all conversions go through the execute stage result mux
2021-08-16 13:06:09 -04:00
Ross Thompson
a70d51f4c9
Modified the hptw's simulation error message so that synthesis does not attempt to include this statement.
2021-08-16 10:02:29 -05:00
Ross Thompson
36761d9155
Fixed syntax errors in some floating point modules. This came up in
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Xilinx synthesis.
2021-08-15 16:48:49 -05:00
Ross Thompson
6c57002d0e
Added logic to linux test bench to not stop simulation on csr write faults.
2021-08-15 11:13:32 -05:00
Ross Thompson
af2c6fd6ff
Updated linux-wave.do to have cursors at the timer interrupt problem.
2021-08-13 17:29:37 -05:00
Ross Thompson
766c829d31
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-08-13 17:23:04 -05:00
Ross Thompson
55fda4de62
Switched ExceptionM to dcache to be just exceptions.
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Added test bench logic to hold forces until the W stage is unstalled.
2021-08-13 15:53:50 -05:00
Ross Thompson
32db21659f
Fixed bugs with CSR checking. The parsing algorithm was messing up the token order after the CSR token.
2021-08-13 14:53:43 -05:00
Ross Thompson
e141a00934
Cleaned up the linux testbench by removing old code and signals.
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Added back in the csr checking logic.
Added code to force timer, external, and software interrupts by using the expected
values from qemu's (m/s)cause registers.
Still need to prevent wally's timer interrupt.
2021-08-13 14:39:05 -05:00
Katherine Parry
aedd71d570
move some FPU select muxs to execute stage
2021-08-13 14:41:22 -04:00
Ross Thompson
4f5007a9ea
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-08-12 18:05:48 -05:00
Ross Thompson
6a6d5e9b15
Added documentation about how the dcache and ptw interact.
2021-08-12 18:05:36 -05:00
Ross Thompson
814fd80b0f
Optimized subwordread to reduce critical path from 8 muxes to 5 muxes + 1 AND gate.
2021-08-12 13:36:33 -05:00
Ross Thompson
9ff9c4dff9
Minor cleanup of the linux test bench.
2021-08-12 11:14:55 -05:00
Abe
44c7494a30
Made a backup folder accessible to everyone for 3 portme directories that would not be preserved in the case of a clean coremark installation.
2021-08-12 05:23:04 -04:00
Ross Thompson
565c01709d
Removed unused states from dcache fsm.
2021-08-11 17:06:09 -05:00
Ross Thompson
2be625d8b9
Modified invalid plic reads to return 0 rather than deadbeaf.
2021-08-11 16:56:22 -05:00
Ross Thompson
4b25fed6d8
Simplified Dcache by sharing the read data mux with the victim selection mux.
2021-08-11 16:55:55 -05:00
Ross Thompson
22f274c51e
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-08-10 13:36:29 -05:00
Ross Thompson
67c1028862
Dcache and LSU clean up.
2021-08-10 13:36:21 -05:00
Katherine Parry
e00f181bcf
LZA added to FMA and attemting a merged FMA and adder in synthesis
2021-08-10 13:57:16 -04:00
Ross Thompson
cce0571925
Fixed another bug with the atomic instrucitons implemention in the dcache.
2021-08-08 22:50:31 -05:00
Ross Thompson
d3be04b7de
Fixed another bug with AMO. If the CPU stalled as an AMO was finishing, the write to the
...
cache's SRAM would occur. Then in the next cycle the SRAM would be reread while stalled
providing the new update dated rather than the correct older value.
2021-08-08 11:42:10 -05:00
Ross Thompson
fc7016eea6
Fixed the AMO dcache bug. The subword write needs to occur before the AMO logic.
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Fixed logic for trace update in the M and W stages. The M stage should not update if there
is an instruction fault.
2021-08-08 00:28:18 -05:00
Ross Thompson
aa9a5d879b
Finally past the CLINT issues.
2021-08-06 16:41:34 -05:00
Ross Thompson
0bfbcef8ab
Now past the CLINT issues.
2021-08-06 16:16:39 -05:00
Ross Thompson
9be10cdc8b
Partial conversion of the linux trace checking to read in the file in the Memory Stage so it is possible to overwrite registers, memory, and interrupts.
2021-08-06 16:06:50 -05:00
Ross Thompson
c749d08542
fixed the read timer issue but we still have problems with interrupts and i/o devices.
2021-08-06 10:16:06 -05:00
Ross Thompson
3582be4dbb
Fixed issue with desync of PCW and ExpectedPCW in linux test bench. The ERROR macro had a 10 ns delay which caused the trace to skip 1 instruction.
2021-08-05 16:49:03 -05:00
Ross Thompson
37ba6b19e5
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-07-30 17:57:13 -05:00
Ross Thompson
f808b29065
Added some comments to linux testbench.
2021-07-30 17:57:03 -05:00
Ross Thompson
e166cc84ee
Patched up changes for wally-pipelined.do and wally-buildroot.do to support moved common testbench files.
2021-07-30 14:24:50 -05:00
Ross Thompson
74fba4bb06
Moved the test bench modules to a common directory.
2021-07-30 14:16:14 -05:00
Ross Thompson
7b9e53fbe5
Removed 1 cycle delay on store miss.
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Changed some logic to partially support atomics.
2021-07-30 14:00:51 -05:00
Ross Thompson
d8878581f4
Created new linux test bench and parsing scripts.
2021-07-29 20:26:50 -05:00
Katherine Parry
d60e394ef9
all fpu units use the unpacking unit
2021-07-28 23:49:21 -04:00
Ross Thompson
915d8136e5
Fixed bug which caused stores to take an extra clock cycle.
2021-07-26 12:22:53 -05:00
Ross Thompson
79ebc53977
Fixed bug with the compressed immediate generation. Several formats should zero extend.
2021-07-26 11:55:31 -05:00
Ross Thompson
ef55b30e99
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
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Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-07-26 11:55:00 -05:00
Ross Thompson
60177b92a6
Added additional interlock for itlb miss -> instrPageFault with concurrent memory operation.
2021-07-25 23:14:28 -05:00
Katherine Parry
30ac22edff
fixed some fpu lint errors
2021-07-24 16:41:12 -04:00
