[coreboot-gerrit] Change in coreboot[master]: treewide: Replace spinlock calls with mutex

[Raul Rangel (Code Review)]

Attention is currently required from: Julius Werner, Kyösti Mälkki, Rob Barnes, Patrick Rudolph, Karthik Ramasubramanian.
Hello build bot (Jenkins), Julius Werner, Rob Barnes, Kyösti Mälkki, Patrick Rudolph, Karthik Ramasubramanian,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/59321

to look at the new patch set (#8).

Change subject: treewide: Replace spinlock calls with mutex
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treewide: Replace spinlock calls with mutex

spinlock does not currently work nicely with coop-threads. If a `udelay`
is called while in a critical section, it will context switch. If that
second thread also tries to acquire the same lock then we deadlock
since we never yield again. There is currently a hack in x86/spinlock.h
where we disable coop threads when acquiring a spinlock. This hack only
works for ramstage because in romstage we use the noop spinlock
implementation. By replacing the spinlocks with mutex we no longer need
to rely on the hack in the x86/spinlock.h.

BUG=b:179699789
TEST=Boot guybrush to OS

Signed-off-by: Raul E Rangel 
Change-Id: Ibee331a9ccd491e819c7f2c9a19bca7dc4379d9d
---
M src/console/printk.c
M src/cpu/intel/microcode/microcode.c
M src/cpu/x86/lapic/lapic_cpu_init.c
M src/cpu/x86/mp_init.c
M src/device/device.c
M src/drivers/pc80/rtc/post.c
6 files changed, 41 insertions(+), 32 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/21/59321/8