fe2cf95d4e
sq typo?
2020-12-29 19:26:40 +02:00
e6580a5465
sq misc comments
2020-12-29 19:26:40 +02:00
56aca62409
sq formatting
2020-12-29 19:26:40 +02:00
b025fb6dd3
Add missing docs
2020-12-29 19:26:40 +02:00
4c9703340e
Add snafu for errors
2020-12-29 19:26:40 +02:00
ffde65fb81
[temp] comment out unused boot fn
2020-12-29 19:26:40 +02:00
f25ace0a80
sq buildable caps
2020-12-29 19:26:40 +02:00
ee1b5fc57a
[blog] Move general comments to separate file
2020-12-29 19:26:40 +02:00
be1873b678
[del] temp - disable stuff
2020-12-29 19:26:40 +02:00
c75db1e2d6
[wip] Replace mashup! with paste!
2020-12-29 19:26:40 +02:00
ec7172aded
[wip] various deps
2020-12-29 19:26:40 +02:00
333dece260
[wip] experiment with caps representation
2020-12-29 19:26:40 +02:00
e6cea882dd
Bump cortex-a from 5.0.0 to 5.1.0
...
Bumps [cortex-a](https://github.com/rust-embedded/cortex-a ) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/rust-embedded/cortex-a/releases )
- [Commits](https://github.com/rust-embedded/cortex-a/commits/v5.1.0 )
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-12-29 18:36:54 +02:00
20363a7e25
Fix wasteful empty loop
...
Thanks, clippy!
2020-12-29 18:12:38 +02:00
a53ede11af
Rename nightly allocator API fns
2020-12-29 18:01:07 +02:00
74303ac7c1
Bump cortex-a and register-rs dependencies
2020-11-24 22:28:40 +02:00
f3103126ab
Add simple serial menu for playing with kernel
2020-11-20 04:35:06 +02:00
b4205f5ce6
Revert “Adjust for nightly rustfmt bug”
...
367ad5bbb2https://github.com/rust-lang/rustfmt/issues/4528
is now fixed.
2020-11-20 03:09:43 +02:00
d85d824bfd
Switch on MMU immediately to avoid unaligned access
...
Since enabling armv6 unaligned access bit U in CP15 C1
requires AArch32 assembly and I don't want to introduce
yet another boot stub, I'll just initialize MMU right away
- this causes CPU to treat SCTLR_EL1.A differently and not
cause any alignment faults.
In the future, a small AArch32 boot stub that uses
now commented out fn enable_armv6_unaligned_access()
should be used to set U=1 and A=0 for full unaligned
access even when MMU is off. See ARM documentation
linked from that fn.
2020-11-20 03:09:43 +02:00
1de52fa109
Disable stack align checks
...
As with data align checks lets not fault on this yet.
2020-11-20 03:09:00 +02:00
696307f30c
Improve traps printing
2020-11-20 03:08:40 +02:00
4cb6f29e0d
Clean up boot-order
...
Extract shared code, fix comments.
2020-11-20 03:08:40 +02:00
43d5e4ea21
Suppress clippy warning
...
For now, no api change.
2020-11-19 14:50:52 +02:00
3147e5327a
Add display demo in main
2020-11-19 04:05:52 +02:00
e72fac01b0
Add Display output
2020-11-19 04:05:52 +02:00
2ac804793b
Add minimal RPi power management
...
* Turn the board off
* Reboot the board
2020-11-18 02:29:09 +02:00
367ad5bbb2
Adjust for nightly rustfmt bug
...
See https://github.com/rust-lang/rustfmt/issues/4528
for the bug description, namely rustfmt removes
this comment completely if it's left in the
extern block.
2020-11-17 22:56:56 +02:00
5dffa9eb8e
Add PL011 UART
2020-11-14 22:15:52 +02:00
d124b02e7c
Add set_clock_rate mailbox command
2020-11-14 22:15:52 +02:00
e8da38e04f
Add qemu-gdb target
...
Refactor QEMU runners.
2020-11-14 17:59:50 +02:00
7604f7c166
Add cargo expand task
2020-11-14 17:33:43 +02:00
09003a7da2
Traps: print more detailed exception report
2020-11-14 17:33:43 +02:00
373f4753dc
Disable alignment checks right on boot
...
Specifically, before we print any numbers - rust
core fmt_u64 uses a little optimisation that
ldrh/strh to unaligned addresses.
2020-11-14 17:33:43 +02:00
482c62d341
Change mmu detail printer formatting
...
Print mmu features before and after init.
2020-11-14 17:33:43 +02:00
df0510266e
Fix formatting
2020-11-14 17:33:43 +02:00
dc2a73f6c6
Provide memory intrinsics via compiler builtins
...
Use unstable feature to remove rlibc crate dependency.
2020-11-14 17:33:43 +02:00
bfba78118f
Move build-std flags to cargo config
2020-11-14 17:33:43 +02:00
aac05a8776
Increase stack print buffer size to print test panics
...
Tests may write pretty long messages in panic output.
2020-11-14 17:33:43 +02:00
50d9caa5f6
Set stack pointer immediately upon boot
2020-11-14 17:33:43 +02:00
20c7c8bd7e
Refactor non-DRY boot code
2020-11-14 17:33:43 +02:00
79028dba96
Add nm helper target
2020-11-04 22:24:39 +02:00
6da44a69ac
Improve gdb runner
2020-11-04 22:24:34 +02:00
d38661b63f
Add openocd/gdb targets to makefile
...
Refactor build system scripts a bit.
2020-11-03 19:29:43 +02:00
3415ccd68c
Add JTAG helpers
2020-11-03 14:03:22 +02:00
c378250aba
Init serial before the rest
...
So we could see output from all modules.
2020-11-02 20:55:18 +02:00
d342031331
Add kernel global CONSOLE
...
Init it with mini_uart - nothing else is implemented yet.
2020-10-28 21:38:53 +02:00
ab696eca8e
Implement Error type for traps module
...
Recommended by the clippy lint
https://rust-lang.github.io/rust-clippy/master/index.html#result_unit_err
Using snafu because it already has a no_std feature
unlike thiserror.
2020-10-28 21:38:53 +02:00
fef66a0191
Bump cortex-a dependency to released version
2020-10-28 21:38:53 +02:00
cecddea41e
Add mini_uart implementation
2020-10-27 19:33:23 +02:00
7a46d7d993
Add a dummy Console device
2020-10-27 19:32:54 +02:00
9f06e2f1a5
Add clippy features matrix
...
Run clippy on all available feature combos.
2020-10-27 13:09:21 +02:00
201cf1e4af
Add noserial feature flag
2020-10-27 11:34:56 +02:00
ea75413df0
Add looping/delay helpers
2020-10-27 11:34:36 +02:00
41eed8e412
Add GPIO support
2020-10-25 22:57:38 +02:00
0def5a4687
Split test failure printing in two parts
...
Due to static buffer size the panic info might not fit. We still
want to print [failed] message in this case though.
2020-10-25 22:21:42 +02:00
79baa20eb6
Adjust indentation in debug output
2020-10-25 22:21:40 +02:00
e19177da52
Add FrameBuffer configuration
2020-10-25 04:11:27 +03:00
c3d8424a46
Update cortex-a dependency
...
While we wait for merge of master repository PRs.
2020-10-24 18:08:20 +03:00
6ae59124a6
Add MailboxOps trait
2020-10-21 16:28:08 +03:00
e6d4bf6095
Improve test runner
2020-10-21 14:25:31 +03:00
d572b2c297
Move panics to separate module
...
Add special panic code for QEMU tests.
2020-10-21 14:25:31 +03:00
6c5d7a13fc
Add more information to READMEs
...
https://scarfolk.blogspot.com/
2020-10-21 05:52:08 +03:00
fb7f86abf0
Add DMA_ALLOCATOR
2020-10-21 05:52:08 +03:00
e48316cc4b
Add mailbox module
2020-10-21 05:52:08 +03:00
97e2c09871
Add bump_allocator for obtaining memory without freeing it
2020-10-21 05:51:10 +03:00
4672ddace6
Add mm module and move memory alignment functions there
2020-10-20 05:40:26 +03:00
4083e955d4
Add dummy synchronisation primitive
...
It is used yet on single-core single-thread system.
Once more threads and more cores are active, better
synchronisation primitives will be introduced.
2020-10-20 05:40:25 +03:00
88b0af44cb
Add Board Support for RPi3
2020-10-20 05:39:50 +03:00
c823b42447
Update license identification
2020-10-17 22:32:16 +03:00
0692c324af
Add trap handling and test
2020-10-15 23:42:01 +03:00
504dcd1f65
Update copyrights
2020-10-15 23:04:01 +03:00
458aba6652
Gate QEMU functions behind testing features
...
At least for now, it's not used anywhere else.
2020-10-15 22:49:31 +03:00
408857fcb6
Add documentation
2020-10-15 22:49:31 +03:00
4898ad3139
Move global options to main.rs
2020-10-15 22:36:52 +03:00
2f663f61de
Move stack start constant to linker script
2020-10-15 22:36:52 +03:00
ded53c16a7
Add MMU init code
...
Switch to cortex-a git version temporarily
(waiting for PR to be merged) with support
for all necessary registers.
2020-10-15 22:36:52 +03:00
2ef8999daf
Remove not necessary inline attributes
...
Now with the bug fixed we can optimise this code for size.
2020-10-13 22:16:19 +03:00
44ef31ff77
Add missed clobbered registers in asm block
...
Fixes mis-compilation described in rust-lang/rust#68812 .
2020-10-13 22:14:32 +03:00
44037398d4
Add hopper make target
...
hopper is useful for inspecting kernel disassembly.
2020-10-07 21:23:23 +03:00
d453d60e19
Bump qemu-exit to version 1.0
2020-10-07 13:00:30 +03:00
041c4add0d
Bump r0 to version 1.0
2020-10-07 13:00:28 +03:00
4cc5305dc8
Prepare scripts for windows CI runner
2020-10-06 19:27:50 +03:00
af1cc83530
Add testing framework
...
Based on os.phil-opp.com ideas it includes running test framework in
qemu semihosting mode so that tests can indicate pass or fail to calling
process.
GitHub Actions are configured to run these tests and validate acceptance.
Add test-runner target to perform tests in qemu.
Add -nographic for qemu running tests.
Drop serial for qemu tests as well.
2020-10-06 19:27:50 +03:00
9fd9612b77
Fix entry point to always start a binary
...
Keep vectors table.
Do not keep boot data if not referenced.
2020-09-21 04:01:21 +03:00
cd16b733e9
Add non-allocating formatted write implementation
2020-09-21 04:01:18 +03:00
f485629fb6
Add boot code for RPi and QEMU
2020-09-21 04:01:17 +03:00
668296b8e0
Fix clippy warning
2020-08-10 00:34:49 +03:00
a4a3289712
Add GH Actions build workflow
2020-08-10 00:34:49 +03:00
57e4b81e1c
Implement power-efficient sleep after boot-up
...
* arch-based crates, inspired by Redox
* Do not burn cpu uselessly.
* Start using cortex-a registers.
* Important: initialise stack pointer!
2020-08-09 22:00:36 +03:00
57fc6e5aa5
Add QEMU configuration
2020-08-09 19:40:57 +03:00
cb814b353b
Add Raspberry Pi target configuration
...
* Use rlibc for memset/memcpy
* Create linker script for raspberry pi 3
* Add aarch64 target file inspired by Robigalia
* Force bitcode embedding for LTO
2020-08-09 19:35:09 +03:00
a57833d2b1
Add basic structure
...
* Add default License
* Keep a changelog
* Add Code of Conduct
* Build tests as optimized for size ('s')
* Otherwise boot code goes bonkers in qemu
2020-08-09 19:33:34 +03:00
Berkus Decker
dependabot-preview[bot]