From: Hosung Kim <hosung0.kim@samsung.com>
Date: Mon, 22 May 2017 14:19:55 +0000 (+0900)
Subject: [COMMON] lib: dss: add spinlock logging
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a55d78d45517648c6c1a7f3231c13ecaa4fd9054;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[COMMON] lib: dss: add spinlock logging

Change-Id: Iba4a6b003f5ab9af4d020d30131bb701d503807e
Signed-off-by: Hosung Kim <hosung0.kim@samsung.com>
---

diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h
index 42dfab89e740..edcc2330db10 100644
--- a/include/linux/spinlock_api_smp.h
+++ b/include/linux/spinlock_api_smp.h
@@ -107,6 +107,7 @@ static inline unsigned long __raw_spin_lock_irqsave(raw_spinlock_t *lock)
 
 	local_irq_save(flags);
 	preempt_disable();
+	dbg_snapshot_spinlock(lock, 1);
 	spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
 	/*
 	 * On lockdep we dont want the hand-coded irq-enable of
@@ -118,6 +119,7 @@ static inline unsigned long __raw_spin_lock_irqsave(raw_spinlock_t *lock)
 #else
 	do_raw_spin_lock_flags(lock, &flags);
 #endif
+	dbg_snapshot_spinlock(lock, 2);
 	return flags;
 }
 
@@ -125,8 +127,10 @@ static inline void __raw_spin_lock_irq(raw_spinlock_t *lock)
 {
 	local_irq_disable();
 	preempt_disable();
+	dbg_snapshot_spinlock(lock, 1);
 	spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
 	LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
+	dbg_snapshot_spinlock(lock, 2);
 }
 
 static inline void __raw_spin_lock_bh(raw_spinlock_t *lock)
@@ -139,8 +143,10 @@ static inline void __raw_spin_lock_bh(raw_spinlock_t *lock)
 static inline void __raw_spin_lock(raw_spinlock_t *lock)
 {
 	preempt_disable();
+	dbg_snapshot_spinlock(lock, 1);
 	spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
 	LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
+	dbg_snapshot_spinlock(lock, 2);
 }
 
 #endif /* !CONFIG_GENERIC_LOCKBREAK || CONFIG_DEBUG_LOCK_ALLOC */
@@ -149,6 +155,7 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 {
 	spin_release(&lock->dep_map, 1, _RET_IP_);
 	do_raw_spin_unlock(lock);
+	dbg_snapshot_spinlock(lock, 3);
 	preempt_enable();
 }
 
@@ -157,6 +164,7 @@ static inline void __raw_spin_unlock_irqrestore(raw_spinlock_t *lock,
 {
 	spin_release(&lock->dep_map, 1, _RET_IP_);
 	do_raw_spin_unlock(lock);
+	dbg_snapshot_spinlock(lock, 3);
 	local_irq_restore(flags);
 	preempt_enable();
 }
@@ -165,6 +173,7 @@ static inline void __raw_spin_unlock_irq(raw_spinlock_t *lock)
 {
 	spin_release(&lock->dep_map, 1, _RET_IP_);
 	do_raw_spin_unlock(lock);
+	dbg_snapshot_spinlock(lock, 3);
 	local_irq_enable();
 	preempt_enable();
 }