ssekar15 opened a new pull request, #21486:
URL: https://github.com/apache/nuttx/pull/21486
## Summary
The common TriCore code takes plain core register numbers and a few
intrinsics from the Infineon iLLD: the CPU_* CSFR offsets come from
IfxCpu_reg.h, interrupt save/restore and the svcall return from
IfxCpu_Intrinsics.h, and tricore_internal.h pulls these iLLD headers into
every common file.
This series adds NuttX's own CSFR offsets in arch/tricore/include/csfr.h
(checked against the TC39xB and TC4Dx iLLD headers, with indexed macros for
the MPU ranges and sets) and moves one file at a time onto them, so each
commit leaves its file free of the iLLD: backtrace, saveusercontext,
svcall, csa, cache, perf, registerdump, mpu and arch/irq.h.
tricore_internal.h no longer includes iLLD headers; the interrupt entry
(tricore_doirq.c) and the trap handler (tricore_trapcall.c) still use the
iLLD and now include it themselves, until they get their own native step.
## Impact
TriCore only (arch/tricore). No functional change: the register offsets and
instructions are the same, only their source changes. cache.c and perf.c
drop their local copies of the PCON/DCON and CCTRL/CCNT offsets.
No Kconfig, board or documentation changes.
## Testing
I confirm that changes are verified on local setup and works as intended:
* Build Host(s): Linux x86_64, Debian GNU/Linux 12 (bookworm)
* Toolchains: AURIX GCC 11.3.1 (tricore-elf-gcc), TASKING VX-toolset v6.4r1
(TC3x), TASKING SmartCode v10.4r1 (TC4x)
* Build systems: make, cmake (Ninja)
* Target(s): a2g-tc397-5v-tft:nsh, triboard_tc4x9_com:nsh
* Hardware: TriBoard TC397 V2.0; TriBoard TC4x7 COM V3.0 for the
triboard_tc4x9_com image
* Each commit builds with GCC and TASKING (make) for both boards, the tip
also with cmake; GCC warnings unchanged from master; each commit passes
tools/checkpatch.sh.
Runtime, ostest on the tip:
| Board | GCC | TASKING |
|---|---|---|
| TriBoard TC397 (a2g-tc397-5v-tft:nsh) | pass | pass |
```
nsh> uname -a
NuttX 10.4.0 df1a3103fe9 Nov 5 2026 tricore a2g-tc397-5v-tft
nsh> ostest
...
user_main: Exiting
ostest_main: Exiting with status 0
```
On the TriBoard TC4x7 (triboard_tc4x9_com image) ostest behaves the same
with and without this series: master 6e1126a2362 also hangs intermittently
in the timer tests with GCC and asserts in the wqueue test with TASKING, so
that is a separate, pre-existing issue.
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