riscv-isa-sim.git
7 years agoFix comment typo. (#126)
Tim Newsome [Thu, 21 Sep 2017 18:48:31 +0000 (11:48 -0700)]
Fix comment typo. (#126)

7 years agoMerge pull request #123 from riscv/debug_interrupts
Tim Newsome [Tue, 12 Sep 2017 20:53:17 +0000 (13:53 -0700)]
Merge pull request #123 from riscv/debug_interrupts

Don't take interrupts while in Debug Mode.

7 years agoDon't take interrupts while in Debug Mode.
Tim Newsome [Tue, 12 Sep 2017 18:04:08 +0000 (11:04 -0700)]
Don't take interrupts while in Debug Mode.

7 years agoMerge pull request #121 from riscv/debug_store
Tim Newsome [Mon, 28 Aug 2017 22:46:08 +0000 (15:46 -0700)]
Merge pull request #121 from riscv/debug_store

Add a nice debug printf for debug_module_t::store

7 years agoAdd a nice debug printf for debug_module_t::store
Tim Newsome [Mon, 28 Aug 2017 22:19:41 +0000 (15:19 -0700)]
Add a nice debug printf for debug_module_t::store

7 years agoMerge pull request #119 from riscv/quiet
Tim Newsome [Fri, 11 Aug 2017 22:48:15 +0000 (15:48 -0700)]
Merge pull request #119 from riscv/quiet

Turn off debug module debug printfs.

7 years agoTurn off debug module debug printfs.
Tim Newsome [Fri, 11 Aug 2017 22:35:22 +0000 (15:35 -0700)]
Turn off debug module debug printfs.

Nobody wants to see all that, and if they do they should recompile.

7 years agoCorrect c.li and c.lui disassembly (#118)
Palmer Dabbelt [Thu, 10 Aug 2017 22:50:30 +0000 (15:50 -0700)]
Correct c.li and c.lui disassembly (#118)

I currently get this disassembly

    00004881 jr      a7

but if I understand that's incorrect and I want

    00004881 li      a7, 0

If I'm reading the ISA manual correctly, the disassembler was just wrong
here.

7 years agoMerge pull request #117 from riscv/multicore_debug
Tim Newsome [Thu, 10 Aug 2017 20:44:42 +0000 (13:44 -0700)]
Merge pull request #117 from riscv/multicore_debug

Fix multicore debug.

7 years agoFix multicore debug.
Tim Newsome [Mon, 7 Aug 2017 18:21:58 +0000 (11:21 -0700)]
Fix multicore debug.

In an older implementation I was thinking of having different entry
points for different harts, but that's no longer true.

Also get rid of a bunch of trailing whitespace.

7 years agoRemove reference to H-mode in ECALL
Andrew Waterman [Fri, 30 Jun 2017 20:19:18 +0000 (13:19 -0700)]
Remove reference to H-mode in ECALL

7 years agoMerge pull request #113 from riscv/debug_readme
Palmer Dabbelt [Wed, 14 Jun 2017 21:39:15 +0000 (14:39 -0700)]
Merge pull request #113 from riscv/debug_readme

Update README to use --rbb-port

7 years agoSupport 64-bit start PCs in reset vector.
Tim Newsome [Wed, 14 Jun 2017 19:42:00 +0000 (12:42 -0700)]
Support 64-bit start PCs in reset vector.

7 years agoUpdate README to use --rbb-port
Tim Newsome [Fri, 9 Jun 2017 17:30:40 +0000 (10:30 -0700)]
Update README to use --rbb-port

7 years agoMerge pull request #112 from riscv/autoexecwrite
Tim Newsome [Fri, 9 Jun 2017 17:05:18 +0000 (10:05 -0700)]
Merge pull request #112 from riscv/autoexecwrite

Return success on writes to abstractauto

7 years agoReturn success on writes to abstractauto
Tim Newsome [Fri, 9 Jun 2017 17:00:36 +0000 (10:00 -0700)]
Return success on writes to abstractauto

This bug was exposed by newer OpenOCD which actually checks the result.

7 years agoMerge pull request #110 from riscv/debug_rom_build
Tim Newsome [Thu, 8 Jun 2017 20:31:04 +0000 (13:31 -0700)]
Merge pull request #110 from riscv/debug_rom_build

`make clean && make` works again in debug_rom

7 years agoMerge pull request #111 from riscv/dtm_reset_error
Tim Newsome [Thu, 8 Jun 2017 20:28:48 +0000 (13:28 -0700)]
Merge pull request #111 from riscv/dtm_reset_error

Reset to "success" instead of "error."

7 years agoReset to "success" instead of "error."
Tim Newsome [Thu, 8 Jun 2017 20:05:01 +0000 (13:05 -0700)]
Reset to "success" instead of "error."

OpenOCD actually checks this initial value now, and there's no reason
for it to indicate error.

7 years ago`make clean && make` works again in debug_rom
Tim Newsome [Thu, 8 Jun 2017 19:58:11 +0000 (12:58 -0700)]
`make clean && make` works again in debug_rom

7 years agoForbid S-mode execution from user memory
Andrew Waterman [Wed, 7 Jun 2017 21:17:58 +0000 (14:17 -0700)]
Forbid S-mode execution from user memory

https://github.com/riscv/riscv-isa-manual/commit/285c81746fe664060b62ae0584865dbfa9f42e1a

7 years agoMerge pull request #108 from riscv/dtc-error
Palmer Dabbelt [Mon, 5 Jun 2017 19:57:58 +0000 (12:57 -0700)]
Merge pull request #108 from riscv/dtc-error

Configure should fail if device-tree-compiler is not installed

7 years agoConfigure should fail if device-tree-compiler is not installed
Andrew Waterman [Mon, 5 Jun 2017 19:55:26 +0000 (12:55 -0700)]
Configure should fail if device-tree-compiler is not installed

Fixes #107

7 years agominNum -> minimumNumber
Andrew Waterman [Thu, 25 May 2017 09:19:46 +0000 (02:19 -0700)]
minNum -> minimumNumber

7 years agoMerge pull request #104 from riscv/disable-werror
Palmer Dabbelt [Tue, 23 May 2017 15:47:43 +0000 (08:47 -0700)]
Merge pull request #104 from riscv/disable-werror

Disable -Werror when building

7 years agoDisable -Werror when building
Palmer Dabbelt [Tue, 23 May 2017 15:33:20 +0000 (08:33 -0700)]
Disable -Werror when building

This has a tendency to blow up on other platforms.

7 years agoMerge remote-tracking branch 'origin/priv-1.10'
Palmer Dabbelt [Wed, 17 May 2017 20:07:47 +0000 (13:07 -0700)]
Merge remote-tracking branch 'origin/priv-1.10'

7 years agoMerge remote-tracking branch 'origin/debug-0.13' into priv-1.10
Palmer Dabbelt [Tue, 16 May 2017 16:33:40 +0000 (09:33 -0700)]
Merge remote-tracking branch 'origin/debug-0.13' into priv-1.10

7 years agoBetter error message when doing DMI operations and we're busy
Palmer Dabbelt [Tue, 16 May 2017 01:33:27 +0000 (18:33 -0700)]
Better error message when doing DMI operations and we're busy

7 years agodebug: whitespace errors
Megan Wachs [Mon, 15 May 2017 17:06:08 +0000 (10:06 -0700)]
debug: whitespace errors

7 years agoMerge branch 'debug-0.13' into HEAD
Megan Wachs [Mon, 15 May 2017 16:53:42 +0000 (09:53 -0700)]
Merge branch 'debug-0.13' into HEAD

7 years agoMake C.LI/C.LUI trapping behavior match spec
Andrew Waterman [Sun, 14 May 2017 05:37:22 +0000 (22:37 -0700)]
Make C.LI/C.LUI trapping behavior match spec

7 years agoUXL=SXL=MXL
Andrew Waterman [Fri, 5 May 2017 23:27:08 +0000 (16:27 -0700)]
UXL=SXL=MXL

https://github.com/riscv/riscv-isa-manual/commit/326bec83de23f4d2daf24cfed6b5251748cad632

7 years agoTrap superpage PTEs when PPN LSBs are set
Andrew Waterman [Fri, 5 May 2017 21:39:26 +0000 (14:39 -0700)]
Trap superpage PTEs when PPN LSBs are set

7 years agoAdd missing include for devices.h
Kito Cheng [Wed, 3 May 2017 09:58:54 +0000 (17:58 +0800)]
Add missing include for devices.h

 - https://github.com/riscv/riscv-tools/issues/69

7 years agoFix segfault when accessing bad memory addresses
Andrew Waterman [Mon, 1 May 2017 23:44:47 +0000 (16:44 -0700)]
Fix segfault when accessing bad memory addresses

7 years agoSet default entry point from ELF
Andrew Waterman [Mon, 1 May 2017 21:44:42 +0000 (14:44 -0700)]
Set default entry point from ELF

7 years agoAdd option to set start pc
Andrew Waterman [Mon, 1 May 2017 06:45:27 +0000 (23:45 -0700)]
Add option to set start pc

7 years agoSupport more flexible main memory allocation
Andrew Waterman [Mon, 1 May 2017 05:03:15 +0000 (22:03 -0700)]
Support more flexible main memory allocation

7 years agoStore both host & target address in soft TLB
Andrew Waterman [Mon, 1 May 2017 00:37:06 +0000 (17:37 -0700)]
Store both host & target address in soft TLB

7 years agoMerge pull request #96 from riscv/ndmreset
Palmer Dabbelt [Wed, 26 Apr 2017 21:22:00 +0000 (14:22 -0700)]
Merge pull request #96 from riscv/ndmreset

Updates to match the latest debug spec

7 years agoRemove a debugging printf
Palmer Dabbelt [Wed, 26 Apr 2017 16:14:07 +0000 (09:14 -0700)]
Remove a debugging printf

7 years agoDon't spin on the remote bitbang reads
Palmer Dabbelt [Wed, 26 Apr 2017 16:13:49 +0000 (09:13 -0700)]
Don't spin on the remote bitbang reads

7 years agoHandle abstractcs.busy
Palmer Dabbelt [Wed, 26 Apr 2017 16:13:19 +0000 (09:13 -0700)]
Handle abstractcs.busy

7 years agoHave ndmreset reset the processor
Palmer Dabbelt [Wed, 19 Apr 2017 23:59:10 +0000 (16:59 -0700)]
Have ndmreset reset the processor

7 years agoFMV.X.S/FMV.S.X -> FMV.X.W/FMV.W.X
Andrew Waterman [Tue, 25 Apr 2017 18:40:59 +0000 (11:40 -0700)]
FMV.X.S/FMV.S.X -> FMV.X.W/FMV.W.X

7 years agoRemove hret instruction
Andrew Waterman [Tue, 25 Apr 2017 18:40:39 +0000 (11:40 -0700)]
Remove hret instruction

7 years agoMerge pull request #94 from riscv/commitlog
Palmer Dabbelt [Mon, 24 Apr 2017 15:15:04 +0000 (08:15 -0700)]
Merge pull request #94 from riscv/commitlog

Fix builds with "--enable-commitlog"

7 years agoFix builds with "--enable-commitlog"
Palmer Dabbelt [Wed, 19 Apr 2017 22:48:42 +0000 (15:48 -0700)]
Fix builds with "--enable-commitlog"

7 years agodebug: move remote_bitbang into riscv
Megan Wachs [Tue, 18 Apr 2017 21:34:51 +0000 (14:34 -0700)]
debug: move remote_bitbang into riscv

7 years agodebug: Remove duplicate remote_bitbang file
Megan Wachs [Tue, 18 Apr 2017 21:34:21 +0000 (14:34 -0700)]
debug: Remove duplicate remote_bitbang file

7 years agodebug: Able to successfully examine a single hart.
Megan Wachs [Tue, 18 Apr 2017 21:04:57 +0000 (14:04 -0700)]
debug: Able to successfully examine a single hart.

7 years agodebug: Use Debug-Module specific constants instead of global defines.
Megan Wachs [Tue, 18 Apr 2017 20:47:10 +0000 (13:47 -0700)]
debug: Use Debug-Module specific constants instead of global defines.

7 years agodebug: Add fence and fence.i to ensure Debug RAM is ready.
Megan Wachs [Tue, 18 Apr 2017 18:44:00 +0000 (11:44 -0700)]
debug: Add fence and fence.i to ensure Debug RAM is ready.

7 years agodebug: Checkpoint which somewhat works with OpenOCD v13, but still has some bugs.
Megan Wachs [Tue, 18 Apr 2017 18:34:31 +0000 (11:34 -0700)]
debug: Checkpoint which somewhat works with OpenOCD v13, but still has some bugs.

7 years agodebug: move the debug_rom defines to a seperate file
Megan Wachs [Tue, 18 Apr 2017 04:21:35 +0000 (21:21 -0700)]
debug: move the debug_rom defines to a seperate file

7 years agodebug: Use more unique debug ROM names
Megan Wachs [Tue, 18 Apr 2017 02:45:42 +0000 (19:45 -0700)]
debug: Use more unique debug ROM names

7 years agodebug: Use a more practical debug ROM
Megan Wachs [Tue, 18 Apr 2017 02:36:01 +0000 (19:36 -0700)]
debug: Use a more practical debug ROM

7 years agodebug: Move things around, but addresses now conflict with ROM.
Megan Wachs [Tue, 18 Apr 2017 02:28:49 +0000 (19:28 -0700)]
debug: Move things around, but addresses now conflict with ROM.

7 years agodebug: consider COMMAND.transfer bit, and implment HARTINFO
Megan Wachs [Mon, 17 Apr 2017 22:19:29 +0000 (15:19 -0700)]
debug: consider COMMAND.transfer bit, and implment HARTINFO

7 years agodebug: Compiles again with new debug_defines.h file, but not tested.
Megan Wachs [Mon, 17 Apr 2017 21:11:43 +0000 (14:11 -0700)]
debug: Compiles again with new debug_defines.h file, but not tested.

7 years agodebug: bump the debug_defines to match spec
Megan Wachs [Mon, 17 Apr 2017 18:31:31 +0000 (11:31 -0700)]
debug: bump the debug_defines to match spec

7 years agoMerge remote-tracking branch 'origin/priv-1.10' into HEAD
Megan Wachs [Mon, 17 Apr 2017 17:59:38 +0000 (10:59 -0700)]
Merge remote-tracking branch 'origin/priv-1.10' into HEAD

7 years agoImplement new FP encoding
Andrew Waterman [Tue, 11 Apr 2017 00:35:24 +0000 (17:35 -0700)]
Implement new FP encoding

https://groups.google.com/a/groups.riscv.org/d/msg/isa-dev/_r7hBlzsEd8/cWPyJKMzCQAJ

7 years agoImplement vectored interrupt proposal
Andrew Waterman [Sat, 8 Apr 2017 00:57:59 +0000 (17:57 -0700)]
Implement vectored interrupt proposal

https://github.com/riscv/riscv-isa-manual/commit/4dcaa944ba40e074d25516a157fc37f7491b71cc

7 years agoAdd --enable-misaligned option for misaligned ld/st support
Andrew Waterman [Thu, 6 Apr 2017 03:37:01 +0000 (20:37 -0700)]
Add --enable-misaligned option for misaligned ld/st support

Resolves #93

7 years agoupdate encoding.h to get PMP updates
Yunsup Lee [Sat, 1 Apr 2017 02:14:19 +0000 (19:14 -0700)]
update encoding.h to get PMP updates

7 years agoUpdate LICENSE copyright date
Andrew Waterman [Sat, 1 Apr 2017 02:11:52 +0000 (19:11 -0700)]
Update LICENSE copyright date

7 years agofdt: move interrupt controller into its own node
Wesley W. Terpstra [Thu, 30 Mar 2017 07:02:49 +0000 (00:02 -0700)]
fdt: move interrupt controller into its own node

7 years agoSet badaddr=0 on illegal instruction traps
Andrew Waterman [Tue, 28 Mar 2017 04:43:48 +0000 (21:43 -0700)]
Set badaddr=0 on illegal instruction traps

7 years agoOn EBREAK, set badaddr to pc
Andrew Waterman [Tue, 28 Mar 2017 04:21:57 +0000 (21:21 -0700)]
On EBREAK, set badaddr to pc

7 years agoSeparate page faults from physical memory access exceptions
Andrew Waterman [Mon, 27 Mar 2017 21:30:22 +0000 (14:30 -0700)]
Separate page faults from physical memory access exceptions

7 years agoDefault to 2 GiB of memory
Andrew Waterman [Sat, 25 Mar 2017 01:10:41 +0000 (18:10 -0700)]
Default to 2 GiB of memory

7 years agoRequire little-endian host
Andrew Waterman [Thu, 23 Mar 2017 20:24:10 +0000 (13:24 -0700)]
Require little-endian host

7 years agoriscv: replace rtc device with a real clint implementation
Wesley W. Terpstra [Wed, 22 Mar 2017 20:57:56 +0000 (13:57 -0700)]
riscv: replace rtc device with a real clint implementation

7 years agosim: declare cores as interrupt-controllers for clint
Wesley W. Terpstra [Wed, 22 Mar 2017 03:53:09 +0000 (20:53 -0700)]
sim: declare cores as interrupt-controllers for clint

7 years agobootrom: set a0 to hartid and a1 to dtb before boot
Wesley W. Terpstra [Tue, 21 Mar 2017 23:47:13 +0000 (16:47 -0700)]
bootrom: set a0 to hartid and a1 to dtb before boot

7 years agoconfigstring: rename variables to dts
Wesley W. Terpstra [Tue, 21 Mar 2017 23:44:43 +0000 (16:44 -0700)]
configstring: rename variables to dts

7 years agoriscv: remove dependency on num_cores
Wesley W. Terpstra [Tue, 21 Mar 2017 23:40:01 +0000 (16:40 -0700)]
riscv: remove dependency on num_cores

7 years agobootrom: include compiled dtb
Wesley W. Terpstra [Tue, 21 Mar 2017 23:06:49 +0000 (16:06 -0700)]
bootrom: include compiled dtb

7 years agosim: create DTS instead of config string
Wesley W. Terpstra [Sat, 4 Mar 2017 03:02:03 +0000 (19:02 -0800)]
sim: create DTS instead of config string

7 years agosim: define emulated CPU clock rate to be 1GHz
Wesley W. Terpstra [Sat, 4 Mar 2017 02:51:37 +0000 (18:51 -0800)]
sim: define emulated CPU clock rate to be 1GHz

7 years agoautoconf: put location of 'dtc' into config.h
Wesley W. Terpstra [Sat, 4 Mar 2017 02:50:37 +0000 (18:50 -0800)]
autoconf: put location of 'dtc' into config.h

7 years agospec bump
Palmer Dabbelt [Tue, 21 Mar 2017 20:11:53 +0000 (13:11 -0700)]
spec bump

7 years agoPUM -> SUM; expose MXR to S-mode
Andrew Waterman [Mon, 20 Mar 2017 07:48:16 +0000 (00:48 -0700)]
PUM -> SUM; expose MXR to S-mode

7 years agoSimplify interrupt-stack discipline
Andrew Waterman [Thu, 16 Mar 2017 19:36:32 +0000 (12:36 -0700)]
Simplify interrupt-stack discipline

https://github.com/riscv/riscv-isa-manual/commit/f2ed45b1791bb602657adc2ea9ab5fc409c62542

7 years agoImplement mstatus.TW, mstatus.TVM, and mstatus.TSR
Andrew Waterman [Mon, 13 Mar 2017 21:48:52 +0000 (14:48 -0700)]
Implement mstatus.TW, mstatus.TVM, and mstatus.TSR

7 years agoDon't overload illegal instruction trap in interactive code
Andrew Waterman [Tue, 7 Mar 2017 09:58:41 +0000 (01:58 -0800)]
Don't overload illegal instruction trap in interactive code

7 years agoSv57 and Sv64 are not spec'd yet
Andrew Waterman [Mon, 27 Feb 2017 00:13:17 +0000 (16:13 -0800)]
Sv57 and Sv64 are not spec'd yet

7 years agoNew counter enable scheme
Andrew Waterman [Sat, 25 Feb 2017 23:28:27 +0000 (15:28 -0800)]
New counter enable scheme

https://github.com/riscv/riscv-isa-manual/issues/10

7 years agoUpdate bits to latest spec.
Tim Newsome [Sat, 25 Feb 2017 18:17:14 +0000 (10:17 -0800)]
Update bits to latest spec.

7 years agoImplement halt request.
Tim Newsome [Thu, 23 Feb 2017 20:12:25 +0000 (12:12 -0800)]
Implement halt request.

Also clean up some vestigial code.

7 years agoImprove debug performance.
Tim Newsome [Wed, 22 Feb 2017 04:22:10 +0000 (20:22 -0800)]
Improve debug performance.

It's still pitiful, but less so. (5KB/s download speed.)

The tweaks involve switching to the other context as soon as it might be
helpful. The two contexts are executing code, and handling JTAG TAP
input.

7 years agoDon't waste time spinning in place in debug mode
Tim Newsome [Wed, 22 Feb 2017 03:32:24 +0000 (19:32 -0800)]
Don't waste time spinning in place in debug mode

7 years agoserialize simulator on wfi
Andrew Waterman [Tue, 21 Feb 2017 02:48:35 +0000 (18:48 -0800)]
serialize simulator on wfi

This improves simulator perf when a thread is idle, or waiting on HTIF.

7 years agoTake M-mode interrupts over S-mode interrupts
Andrew Waterman [Tue, 21 Feb 2017 01:17:17 +0000 (17:17 -0800)]
Take M-mode interrupts over S-mode interrupts

7 years agopermit MMIO loads to MSIP bit
Andrew Waterman [Tue, 21 Feb 2017 01:16:58 +0000 (17:16 -0800)]
permit MMIO loads to MSIP bit

7 years agoMake HW setting of PTE A/D bits optional (by configure arg)
Andrew Waterman [Sun, 19 Feb 2017 01:24:04 +0000 (17:24 -0800)]
Make HW setting of PTE A/D bits optional (by configure arg)

https://github.com/riscv/riscv-isa-manual/issues/14

7 years agoSpike uarch needs TLB flush after SPTBR write
Andrew Waterman [Sat, 18 Feb 2017 11:03:10 +0000 (03:03 -0800)]
Spike uarch needs TLB flush after SPTBR write

7 years agoCompress log output of jump-to-self loops.
Tim Newsome [Sat, 18 Feb 2017 02:50:44 +0000 (18:50 -0800)]
Compress log output of jump-to-self loops.

This helps hugely when reading "spike -l" output when debugging is going
on.