--- zzzz-none-000/linux-5.4.213/include/linux/spinlock.h	2022-09-15 10:04:56.000000000 +0000
+++ miami-7690-761/linux-5.4.213/include/linux/spinlock.h	2024-05-29 11:20:02.000000000 +0000
@@ -58,6 +58,16 @@
 #include <linux/bottom_half.h>
 #include <asm/barrier.h>
 #include <asm/mmiowb.h>
+#if defined(CONFIG_AVM_FASTIRQ_DEBUG)
+#include <asm/avm_enh/avm_fiq.h>
+#define AVM_CHECK_LINUX_CONTEXT()\
+	do {\
+		if (is_cpu_mode_fiq())\
+			pr_err("ERROR: fiq-context 0x%08lx 0x%08lx\n", _THIS_IP_, _RET_IP_);\
+	} while (0)
+#else
+#define AVM_CHECK_LINUX_CONTEXT()
+#endif /* CONFIG_AVM_FASTIRQ_DEBUG */
 
 
 /*
@@ -223,8 +233,11 @@
 #define raw_spin_lock(lock)	_raw_spin_lock(lock)
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
-# define raw_spin_lock_nested(lock, subclass) \
-	_raw_spin_lock_nested(lock, subclass)
+# define raw_spin_lock_nested(lock, subclass)          \
+	do {                                           \
+		AVM_CHECK_LINUX_CONTEXT();             \
+		_raw_spin_lock_nested(lock, subclass); \
+	} while (0)
 
 # define raw_spin_lock_nest_lock(lock, nest_lock)			\
 	 do {								\
@@ -246,6 +259,7 @@
 
 #define raw_spin_lock_irqsave(lock, flags)			\
 	do {						\
+		AVM_CHECK_LINUX_CONTEXT();              \
 		typecheck(unsigned long, flags);	\
 		flags = _raw_spin_lock_irqsave(lock);	\
 	} while (0)
@@ -253,12 +267,14 @@
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 #define raw_spin_lock_irqsave_nested(lock, flags, subclass)		\
 	do {								\
+		AVM_CHECK_LINUX_CONTEXT();                              \
 		typecheck(unsigned long, flags);			\
 		flags = _raw_spin_lock_irqsave_nested(lock, subclass);	\
 	} while (0)
 #else
 #define raw_spin_lock_irqsave_nested(lock, flags, subclass)		\
 	do {								\
+		AVM_CHECK_LINUX_CONTEXT();                              \
 		typecheck(unsigned long, flags);			\
 		flags = _raw_spin_lock_irqsave(lock);			\
 	} while (0)
@@ -268,6 +284,7 @@
 
 #define raw_spin_lock_irqsave(lock, flags)		\
 	do {						\
+		AVM_CHECK_LINUX_CONTEXT();              \
 		typecheck(unsigned long, flags);	\
 		_raw_spin_lock_irqsave(lock, flags);	\
 	} while (0)
@@ -294,6 +311,7 @@
 
 #define raw_spin_trylock_irq(lock) \
 ({ \
+	AVM_CHECK_LINUX_CONTEXT(); \
 	local_irq_disable(); \
 	raw_spin_trylock(lock) ? \
 	1 : ({ local_irq_enable(); 0;  }); \
@@ -301,6 +319,7 @@
 
 #define raw_spin_trylock_irqsave(lock, flags) \
 ({ \
+	AVM_CHECK_LINUX_CONTEXT(); \
 	local_irq_save(flags); \
 	raw_spin_trylock(lock) ? \
 	1 : ({ local_irq_restore(flags); 0; }); \
@@ -335,41 +354,49 @@
 
 static __always_inline void spin_lock(spinlock_t *lock)
 {
+	AVM_CHECK_LINUX_CONTEXT();
 	raw_spin_lock(&lock->rlock);
 }
 
 static __always_inline void spin_lock_bh(spinlock_t *lock)
 {
+	AVM_CHECK_LINUX_CONTEXT();
 	raw_spin_lock_bh(&lock->rlock);
 }
 
 static __always_inline int spin_trylock(spinlock_t *lock)
 {
+	AVM_CHECK_LINUX_CONTEXT();
 	return raw_spin_trylock(&lock->rlock);
 }
 
 #define spin_lock_nested(lock, subclass)			\
 do {								\
+	AVM_CHECK_LINUX_CONTEXT();                              \
 	raw_spin_lock_nested(spinlock_check(lock), subclass);	\
 } while (0)
 
 #define spin_lock_nest_lock(lock, nest_lock)				\
 do {									\
+	AVM_CHECK_LINUX_CONTEXT();				        \
 	raw_spin_lock_nest_lock(spinlock_check(lock), nest_lock);	\
 } while (0)
 
 static __always_inline void spin_lock_irq(spinlock_t *lock)
 {
+	AVM_CHECK_LINUX_CONTEXT();
 	raw_spin_lock_irq(&lock->rlock);
 }
 
 #define spin_lock_irqsave(lock, flags)				\
 do {								\
+	AVM_CHECK_LINUX_CONTEXT();                              \
 	raw_spin_lock_irqsave(spinlock_check(lock), flags);	\
 } while (0)
 
 #define spin_lock_irqsave_nested(lock, flags, subclass)			\
 do {									\
+	AVM_CHECK_LINUX_CONTEXT();                                      \
 	raw_spin_lock_irqsave_nested(spinlock_check(lock), flags, subclass); \
 } while (0)
 
@@ -395,16 +422,19 @@
 
 static __always_inline int spin_trylock_bh(spinlock_t *lock)
 {
+	AVM_CHECK_LINUX_CONTEXT();
 	return raw_spin_trylock_bh(&lock->rlock);
 }
 
 static __always_inline int spin_trylock_irq(spinlock_t *lock)
 {
+	AVM_CHECK_LINUX_CONTEXT();
 	return raw_spin_trylock_irq(&lock->rlock);
 }
 
 #define spin_trylock_irqsave(lock, flags)			\
 ({								\
+	AVM_CHECK_LINUX_CONTEXT();                              \
 	raw_spin_trylock_irqsave(spinlock_check(lock), flags); \
 })