Changeset 2b264c4 in mainline for kernel/generic/src/synch/spinlock.c

Timestamp:

2023-02-02T21:58:36Z (15 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b076dfb

Parents:

f43d8ce

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-01-20 18:16:32)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-02-02 21:58:36)

Message:

Add architecture-specific spinlock optimization

File:

• kernel/generic/src/synch/spinlock.c (modified) (3 diffs)

kernel/generic/src/synch/spinlock.c

@@ -37 +37 @@
  */
 
+#include <arch/asm.h>
 #include <synch/spinlock.h>
 #include <atomic.h>
@@ -47 +48 @@
 #include <stacktrace.h>
 #include <cpu.h>
+
+#ifndef ARCH_SPIN_HINT
+#define ARCH_SPIN_HINT() ((void)0)
+#endif
 
 /** Initialize spinlock
@@ -77 +82 @@
 
         while (atomic_flag_test_and_set_explicit(&lock->flag, memory_order_acquire)) {
+                ARCH_SPIN_HINT();
+
 #ifdef CONFIG_DEBUG_SPINLOCK
                 /*