From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/tools/testing/selftests/powerpc/pmu/loop.S |   37 ++++++++++++++++++++++++++++++++++++-
 1 files changed, 36 insertions(+), 1 deletions(-)

diff --git a/kernel/tools/testing/selftests/powerpc/pmu/loop.S b/kernel/tools/testing/selftests/powerpc/pmu/loop.S
index 20c1f08..c52ba09 100644
--- a/kernel/tools/testing/selftests/powerpc/pmu/loop.S
+++ b/kernel/tools/testing/selftests/powerpc/pmu/loop.S
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <ppc-asm.h>
@@ -41,3 +41,38 @@
 	subi	r3,r3,1
 	b	FUNC_NAME(thirty_two_instruction_loop)
 FUNC_END(thirty_two_instruction_loop)
+
+FUNC_START(thirty_two_instruction_loop_with_ll_sc)
+	cmpdi	r3,0
+	beqlr
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 5
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+1:	ldarx	r6,0,r4		# 10
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 15
+	addi	r5,r5,1
+	addi	r5,r5,1
+	stdcx.	r6,0,r4
+	bne-	1b
+	addi	r5,r5,1		# 20
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 25
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 30
+	subi	r3,r3,1
+	b	FUNC_NAME(thirty_two_instruction_loop_with_ll_sc)
+FUNC_END(thirty_two_instruction_loop_with_ll_sc)

--
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