[PATCH v10 03/14] powerpc: Use soft_enabled_set api to update paca->soft_enabled

@@ -59,6 +59,20 @@ static inline notrace void soft_enabled_set(unsigned long enable)
 	: "memory");
 }
 
+static inline notrace unsigned long soft_enabled_set_return(unsigned long enable)
+{
+	unsigned long flags, zero;
+
+	asm volatile(
+		"mr %1,%3; lbz %0,%2(13); stb %1,%2(13)"
+		: "=r" (flags), "=&r" (zero)
+		: "i" (offsetof(struct paca_struct, soft_enabled)),\
+		  "r" (enable)
+		: "memory");
+
+	return flags;
+}
+
 static inline unsigned long arch_local_save_flags(void)
 {
 	unsigned long flags;

@@ -869,7 +869,7 @@ static inline void kvmppc_fix_ee_before_entry(void)
 
 	/* Only need to enable IRQs by hard enabling them after this */
 	local_paca->irq_happened = 0;
-	local_paca->soft_enabled = IRQ_ENABLED;
+	soft_enabled_set(IRQ_ENABLED);
 #endif
 }
 

@@ -350,7 +350,7 @@ bool prep_irq_for_idle(void)
 	 * of entering the low power state.
 	 */
 	local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
-	local_paca->soft_enabled = IRQ_ENABLED;
+	soft_enabled_set(IRQ_ENABLED);
 
 	/* Tell the caller to enter the low power state */
 	return true;

@@ -189,7 +189,7 @@ static void __init fixup_boot_paca(void)
 	/* Allow percpu accesses to work until we setup percpu data */
 	get_paca()->data_offset = 0;
 	/* Mark interrupts disabled in PACA */
-	get_paca()->soft_enabled = IRQ_DISABLED;
+	soft_enabled_set(IRQ_DISABLED);
 }
 
 static void __init configure_exceptions(void)

@@ -345,7 +345,7 @@ void __init early_setup(unsigned long dt_ptr)
 void early_setup_secondary(void)
 {
 	/* Mark interrupts disabled in PACA */
-	get_paca()->soft_enabled = 0;
+	soft_enabled_set(IRQ_DISABLED);
 
 	/* Initialize the hash table or TLB handling */
 	early_init_mmu_secondary();

@@ -244,7 +244,7 @@ static u64 scan_dispatch_log(u64 stop_tb)
 void accumulate_stolen_time(void)
 {
 	u64 sst, ust;
-	u8 save_soft_enabled = local_paca->soft_enabled;
+	unsigned long save_soft_enabled;
 	struct cpu_accounting_data *acct = &local_paca->accounting;
 
 	/* We are called early in the exception entry, before

@@ -253,7 +253,7 @@ void accumulate_stolen_time(void)
 	 * needs to reflect that so various debug stuff doesn't
 	 * complain
 	 */
-	local_paca->soft_enabled = IRQ_DISABLED;
+	save_soft_enabled = soft_enabled_set_return(IRQ_DISABLED);
 
 	sst = scan_dispatch_log(acct->starttime_user);
 	ust = scan_dispatch_log(acct->starttime);

@@ -261,7 +261,7 @@ void accumulate_stolen_time(void)
 	acct->utime -= ust;
 	acct->steal_time += ust + sst;
 
-	local_paca->soft_enabled = save_soft_enabled;
+	soft_enabled_set(save_soft_enabled);
 }
 
 static inline u64 calculate_stolen_time(u64 stop_tb)