From: Jiaxun Yang <jiaxun.yang@flygoat.com>
Date: Fri, 14 Jun 2024 15:40:17 +0000 (+0100)
Subject: MIPS: Loongson64: sleeper: Pass ra and sp as arguments
X-Git-Tag: v6.11-rc1~95^2~33
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=335819fd5bac67d05ab2d8d7438ac5c475ac03c6;p=thirdparty%2Fkernel%2Flinux.git

MIPS: Loongson64: sleeper: Pass ra and sp as arguments

Some firmware implementations require restoring ra and sp to be
passed as arguments.

Passing them as necessary.

Fixes: 68557c59a550 ("MIPS: Loongson64: Implement PM suspend for LEFI firmware")
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---

diff --git a/arch/mips/loongson64/sleeper.S b/arch/mips/loongson64/sleeper.S
index 04874b9bf430b..cf16877409e2f 100644
--- a/arch/mips/loongson64/sleeper.S
+++ b/arch/mips/loongson64/sleeper.S
@@ -11,7 +11,11 @@
 
 LEAF(loongson_lefi_sleep)
 	SUSPEND_SAVE
-	jalr    a0
-    smp_slave_setup
+	move	t9, a0
+	PTR_LA	a0, wake
+	move	a1, sp
+	jalr    t9
+wake:
+	smp_slave_setup
 	RESUME_RESTORE_REGS_RETURN
 END(loongson_lefi_sleep)