bunnie
05844c7646
reflect API changes in code
2024-05-06 02:28:11 +08:00
bunnie
f6dd848ef4
this wasn't supposed to be checked in
2024-05-06 02:25:49 +08:00
bunnie
10d613b95d
add some tests for the SPIM memory interface
2024-05-05 21:51:48 +08:00
bunnie
8ceaa1afe4
fix page tracking bug on physical swap addresses
2024-05-05 21:51:17 +08:00
bunnie
fe0db3e29a
more stack space is needed due to the increased size of the RPT
2024-05-05 21:50:09 +08:00
bunnie
0a3375722b
add an experimental routine to try and print the exception vector
...
this is in the loader and only valid for the cramium-soc target.
2024-05-05 16:30:45 +08:00
bunnie
bb4b01b04b
facilitate access for debug access to CSR by adding riscv package
2024-05-05 03:28:13 +08:00
bunnie
64f5531ae6
fix dummy cycle bug on SPIM flash read
...
bus is running at 50MHz (or less!), so we can use the shortest
dummy cycling
2024-05-05 03:27:01 +08:00
bunnie
82be129df1
fix typo
2024-05-05 03:26:21 +08:00
bunnie
5fa955f507
fix typo, enforce alignment on the RawPage structure
...
I think i recall somewhere that an alignment of 16 is required
for certain structures in Rust for the RV32 target; since anything
could be put in there, let's enforce that.
2024-05-05 03:25:08 +08:00
bunnie
7ebfdf3ecd
shorten boot wait
2024-05-05 03:24:50 +08:00
bunnie
62d16bb77f
fix minor bugs
2024-05-04 22:07:16 +08:00
bunnie
dbd33ad220
don't commit the redacted fonts section
...
this is just for very early bringup to reduce blob size
and improve cycle time for experimentation.
2024-05-04 21:45:03 +08:00
bunnie
829ac28072
fixes for cramium target
2024-05-04 21:41:38 +08:00
bunnie
a6a3d29836
more warning cleanup, moving around app_uart visbility part 2
2024-05-04 01:46:05 +08:00
bunnie
721129781a
cleanup some warnings
2024-05-04 01:45:36 +08:00
bunnie
0b63979614
fix visibility of app uart for cramium config
2024-05-04 01:45:10 +08:00
bunnie
8f0634845e
add more userspace maps for loader-managed swap maps
2024-05-03 18:46:11 +08:00
bunnie
228558a722
add platform specific hw inits & key retrieval
...
- swap session key has to be stored so we can pass it on to
the kernel to access swap
- setup all PT maps necessary for swapper to be functional
before the swapper is started.
This is to break circular dependencies mapping pages inside the
swapper, especially during boot.
We might also need to statically map the LRU swap count structure,
not sure. We'll burn that bridge when we get there, right now,
let's just get a non count-managed swap even working...
2024-05-03 18:43:57 +08:00
bunnie
ef6a73d329
use the correct session key for swap ram
...
and also call platform-specific swap init
2024-05-03 18:43:19 +08:00
bunnie
d434e70075
move the IFRAM specifiers to a more public location
...
The IFRAM allocation used by the loader is now exposed so
we can pick it up and use it in the actual HAL implementation
in usermode.
2024-05-03 16:04:37 +08:00
bunnie
c8d4123ed7
fix the debug printout to walk the virtual addresses in swap PT
...
The check of mapping sanity happens after the VA mapping, so this
undoes that. I think this is a good idea, because we're also
checking the PA->VA mapping of the PTEs as well now.
2024-05-03 16:03:14 +08:00
bunnie
be98a88a75
patch PTEs mapped to swapper with virtual addresses
...
The addresses put into the swapper's page table are physical
addresses, which are unusable by the swapper itself. This
patches the PTEs with the repsective virtual address, so we
don't have to do a PT walk inside the swapper when handling
a swap event.
Also fix an off-by-one on the processes count. This is sort of
an old architectural bug in the loader that would be nice to fix
someday.
2024-05-03 16:01:25 +08:00
bunnie
b4d1b4e5bb
add swap lib interface to loader
...
for use by the swapper
2024-05-02 22:15:32 +08:00
bunnie
67685db741
create the SwapSpec structure and mappings
2024-05-02 22:14:58 +08:00
bunnie
cd43157d1e
refactor loader mac accessor interfaces
...
traits are kind of awful in Rust...it's true, they don't
know how big they are at compile time, so they have to be dyn,
reference, lifetimes, etc...
lot of baggage for a static structure. I guess there's probably
some idk bounds I could put on the traits to make it less poopy
but also just as easy to make it a static structure and not deal
with traits.
2024-05-02 22:13:11 +08:00
bunnie
51dd3b897b
map arguments and rpt into loader memory space
...
this allows us to avoid the dance of getting args/values back
on boot through a syscall
2024-05-02 22:12:07 +08:00
bunnie
e201574eb8
put the verification in the right area
2024-04-30 17:47:57 +08:00
bunnie
c68e351bcc
incorporate latest changes into the swap init routine
2024-04-30 17:47:36 +08:00
bunnie
7ae34ed717
add features for alt spi channel on bringup
2024-04-30 17:14:22 +08:00
bunnie
1810880723
add SPIM loader bringup code
2024-04-30 17:13:42 +08:00
bunnie
fd9f85ef58
adjust speeds to reflect actual spec
2024-04-30 17:13:21 +08:00
bunnie
4499097c74
add remainder of test code for spim
2024-04-29 04:13:01 +08:00
bunnie
c1b6f479d4
add some test code for SPIM interface
2024-04-29 04:10:54 +08:00
bunnie
31c51a2a7f
add spim-test flag for loader
2024-04-29 04:09:53 +08:00
bunnie
506bcdc7b9
add pio tester feature flag
2024-04-29 03:44:46 +08:00
bunnie
0adb20b3d8
add a test stub for the quantum timer in the loader
...
a little easier to do low level peripheral testing here than in
the kernel
2024-04-29 03:42:34 +08:00
bunnie
4926e61fec
cleanup mut warning
2024-04-28 02:57:44 +08:00
bunnie
07c9890919
fix location of kernel; attempt to debug loader
2024-04-28 02:43:11 +08:00
bunnie
c491c63e42
add PLL computation code
2024-04-27 22:24:27 +08:00
bunnie
2702b94c93
include signature block in kernel offset constant
2024-04-26 18:20:14 +08:00
bunnie
d85ff12ca2
rework the kernel offset
2024-04-26 18:19:59 +08:00
bunnie
6c2cb85a44
make sram-margin and boot delay feature flags
2024-04-26 18:16:56 +08:00
bunnie
a781b2e15d
start to lay in code rework for booting on real chips
2024-04-26 18:16:12 +08:00
bunnie
05d2f3d6a9
configure boot addresses
2024-04-26 18:15:05 +08:00
bunnie
c407db877e
change DUART ports to accommodate jtag breakout
2024-04-22 11:00:06 +08:00
bunnie
73c834d067
start debugging of swap in kernel
...
switching contexts to bringing up hardware.
2024-04-22 10:58:37 +08:00
bunnie
799d1554ae
chore: CI fixes
2024-04-09 18:51:36 +08:00
bunnie
4ace363abc
this resolves comments from @xobs' code review
2024-04-09 18:23:09 +08:00
bunnie
336e47eabe
remove comment
2024-04-09 15:46:48 +08:00
