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cpu/mp_init: Fix microcode lock 

Fix C code to match comment and assembly implementation.

Tested on Prodrive hermes:
The microcode spinlock is no longer used.

Change-Id: I21441299f538783551d4d5ba2b2e7567e152d718
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49304
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Patrick Rudolph 2021-01-11 09:35:49 +01:00 committed by Patrick Georgi
parent ce51b34186
commit 393992f31d
1 changed files with 2 additions and 2 deletions
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4
src/cpu/x86/mp_init.c
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@ -344,9 +344,9 @@ static atomic_t *load_sipi_vector(struct mp_params *mp_params)
sp->microcode_ptr = (uintptr_t)mp_params->microcode_pointer; sp->microcode_ptr = (uintptr_t)mp_params->microcode_pointer;
/* Pass on ability to load microcode in parallel. */ /* Pass on ability to load microcode in parallel. */
if (mp_params->parallel_microcode_load) if (mp_params->parallel_microcode_load)
sp->microcode_lock = 0;
else
sp->microcode_lock = ~0; sp->microcode_lock = ~0;
else
sp->microcode_lock = 0;
sp->c_handler = (uintptr_t)&ap_init; sp->c_handler = (uintptr_t)&ap_init;
ap_count = &sp->ap_count; ap_count = &sp->ap_count;
atomic_set(ap_count, 0); atomic_set(ap_count, 0);