Arthur Heymans ac24a96579 arch/x86/spinlock.h: Support systems with >128 cores ... Each time the spinlock is acquired a byte is decreased and then the sign of the byte is checked. If there are more than 128 cores the sign check will overflow. An easy fix is to increase the word size of the spinlock acquiring and releasing. TEST: See that serialized SMM relocation is still serialized on systems with >128 cores. Change-Id: I76afaa60669335090743d99381280e74aa9fb5b1 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/60539 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>		2022-01-15 14:48:46 +00:00
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arm	arch/{arm,arm64,ppc64,riscv}: Add noop cpu_relax	2021-11-25 10:42:17 +00:00
arm64	arch/{arm,arm64,ppc64,riscv}: Add noop cpu_relax	2021-11-25 10:42:17 +00:00
ppc64	arch/{arm,arm64,ppc64,riscv}: Add noop cpu_relax	2021-11-25 10:42:17 +00:00
riscv	arch/{arm,arm64,ppc64,riscv}: Add noop cpu_relax	2021-11-25 10:42:17 +00:00
x86	arch/x86/spinlock.h: Support systems with >128 cores	2022-01-15 14:48:46 +00:00