From: Maxime Bizon <mbizon@freebox.fr>
Date: Tue, 20 Dec 2005 05:32:19 +0000 (+0100)
Subject: MIPS: R2: Fix local_irq_save()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=15265251c5c68fbabdf561cf704e3e305349715a;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

MIPS: R2: Fix local_irq_save()

local_irq_restore uses di which saves the whole status content, not
just the IE bit resulting in  local_irq_restore() to fail.  This only
happens if both CONFIG_CPU_MIPSR2 and CONFIG_IRQ_CPU are enabled.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/include/asm-mips/interrupt.h b/include/asm-mips/interrupt.h
index a5735761f5e5..abdf54ee64cf 100644
--- a/include/asm-mips/interrupt.h
+++ b/include/asm-mips/interrupt.h
@@ -93,6 +93,7 @@ __asm__ (
 	"	.set	noat						\n"
 #ifdef CONFIG_CPU_MIPSR2
 	"	di	\\result					\n"
+	"	andi	\\result, 1					\n"
 #else
 	"	mfc0	\\result, $12					\n"
 	"	ori	$1, \\result, 1					\n"