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arch/x86,lib/thread: Enable thread support in romstage

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This change does the following:
* Pushes the cpu_info struct into the top of the stack (just like
  c_start.S). This is required so the cpu_info function works correctly.

* Adds the thread.c to the romstage build.

I only enabled this for romstage since I haven't done any tests in other
stages, but in theory it should work for other stages.

BUG=b:179699789
TEST=Boot guybrush with threads enabled in romstage

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I8e32e1c54dea0d0c85dd6d6753147099aa54b9b5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Raul E Rangel
2021-07-21 14:34:00 -06:00
committed by Patrick Georgi
parent e279d90d4d
commit ca0606e04f
4 changed files with 17 additions and 3 deletions
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2
src/include/thread.h
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@ -38,7 +38,7 @@ int thread_run_until(struct thread_handle *handle, enum cb_err (*func)(void *),
/* Waits until the thread has terminated and returns the error code */
enum cb_err thread_join(struct thread_handle *handle);
#if ENV_RAMSTAGE && CONFIG(COOP_MULTITASKING)
#if (ENV_RAMSTAGE || ENV_ROMSTAGE) && CONFIG(COOP_MULTITASKING)
struct thread {
int id;