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RedBear-OS/local/recipes/gpu/amdgpu-source/include/asm/asm/spinlock.h
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vasilito dc68054305 restore lost packages from 0.2.3 + fix overwritten 0.2.4 files
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.)
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- Recover TLC source from HEAD (was overwritten by 0.2.3 checkout)
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- Update version: 0.2.0 -> 0.2.4 in os-release, motd, config
- Reduce filesystem_size: 1536 -> 512 MiB
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- Reduce pcid scheme log verbosity: info -> debug
2026-06-19 12:39:14 +03:00

45 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SPINLOCK_H
#define _ASM_X86_SPINLOCK_H
#include <linux/jump_label.h>
#include <linux/atomic.h>
#include <asm/page.h>
#include <asm/processor.h>
#include <linux/compiler.h>
#include <asm/bitops.h>
/*
* Your basic SMP spinlocks, allowing only a single CPU anywhere
*
* Simple spin lock operations. There are two variants, one clears IRQ's
* on the local processor, one does not.
*
* These are fair FIFO ticket locks, which support up to 2^16 CPUs.
*
* (the type definitions are in asm/spinlock_types.h)
*/
/* How long a lock should spin before we consider blocking */
#define SPIN_THRESHOLD (1 << 15)
#include <asm/qspinlock.h>
/*
* Read-write spinlocks, allowing multiple readers
* but only one writer.
*
* NOTE! it is quite common to have readers in interrupts
* but no interrupt writers. For those circumstances we
* can "mix" irq-safe locks - any writer needs to get a
* irq-safe write-lock, but readers can get non-irqsafe
* read-locks.
*
* On x86, we implement read-write locks using the generic qrwlock with
* x86 specific optimization.
*/
#include <asm/qrwlock.h>
#endif /* _ASM_X86_SPINLOCK_H */