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Implement spinlock support for SMP on UML/x86, leveraging x86's spinlock implementation. In addition, to support SMP on CPUs that do not support CX8, some additional work is required. However, considering that such CPUs are already very outdated, and x86 is also removing support for them [1], let's enable SMP support only on CPUs that support CX8. [1] https://lore.kernel.org/lkml/20250515085708.2510123-1-mingo@kernel.org/ Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com> Link: https://patch.msgid.link/20251027001815.1666872-9-tiwei.bie@linux.dev Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 lines
182 B
C
9 lines
182 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_UM_SPINLOCK_H
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#define __ASM_UM_SPINLOCK_H
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#include <asm/qspinlock.h>
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#include <asm/qrwlock.h>
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#endif /* __ASM_UM_SPINLOCK_H */
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