From 512b5b89b9ef90e7a6475513fa9402e55b0e831c Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Mon, 16 Nov 2015 13:52:07 +0530
Subject: [PATCH] ARC: Abstract out ISA specific SLEEP args

No semantical changes, prepares for ARCv2 specific change in next commit

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/include/asm/irqflags-arcv2.h   | 2 ++
 arch/arc/include/asm/irqflags-compact.h | 2 ++
 arch/arc/kernel/process.c               | 9 ++++-----
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h
index ad481c24070d..f7c8d3cbeaa1 100644
--- a/arch/arc/include/asm/irqflags-arcv2.h
+++ b/arch/arc/include/asm/irqflags-arcv2.h
@@ -37,6 +37,8 @@
 #define ISA_INIT_STATUS_BITS	(STATUS_IE_MASK | STATUS_AD_MASK | \
 					(ARCV2_IRQ_DEF_PRIO << 1))
 
+#define ISA_SLEEP_ARG		0x10
+
 #ifndef __ASSEMBLY__
 
 /*
diff --git a/arch/arc/include/asm/irqflags-compact.h b/arch/arc/include/asm/irqflags-compact.h
index d8c608174617..c1d36458bfb7 100644
--- a/arch/arc/include/asm/irqflags-compact.h
+++ b/arch/arc/include/asm/irqflags-compact.h
@@ -43,6 +43,8 @@
 
 #define ISA_INIT_STATUS_BITS	STATUS_IE_MASK
 
+#define ISA_SLEEP_ARG		0x3
+
 #ifndef __ASSEMBLY__
 
 /******************************************************************
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index 91d5a0f1f3f7..a3f750e76b68 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -44,11 +44,10 @@ SYSCALL_DEFINE0(arc_gettls)
 void arch_cpu_idle(void)
 {
 	/* sleep, but enable all interrupts before committing */
-	if (is_isa_arcompact()) {
-		__asm__("sleep 0x3");
-	} else {
-		__asm__("sleep 0x10");
-	}
+	__asm__ __volatile__(
+		"sleep %0	\n"
+		:
+		:"I"(ISA_SLEEP_ARG)); /* can't be "r" has to be embedded const */
 }
 
 asmlinkage void ret_from_fork(void);