From: Helge Deller <deller@gmx.de>
Date: Fri, 25 Mar 2022 13:22:57 +0000 (+0100)
Subject: parisc: Move common_stext into .text section when CONFIG_HOTPLUG_CPU=y
X-Git-Tag: v6.6.17~7847^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ca45ec3cb44aabe0933f9e10dba1b6946afb2a13;p=platform%2Fkernel%2Flinux-rpi.git

parisc: Move common_stext into .text section when CONFIG_HOTPLUG_CPU=y

Move the common_stext function into the non-init text section if hotplug
is enabled. This function is called from the firmware when hotplugged
CPUs are brought up.

Signed-off-by: Helge Deller <deller@gmx.de>
---

diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index b24f777..e0a9e96 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -162,6 +162,15 @@ $pgt_fill_loop:
 	/* FALLTHROUGH */
 	.procend
 
+#ifdef CONFIG_HOTPLUG_CPU
+	/* common_stext is far away in another section... jump there */
+	load32		PA(common_stext), %rp
+	bv,n		(%rp)
+
+	/* common_stext and smp_slave_stext needs to be in text section */
+	.text
+#endif
+
 	/*
 	** Code Common to both Monarch and Slave processors.
 	** Entry:
@@ -371,8 +380,6 @@ smp_slave_stext:
 	.procend
 #endif /* CONFIG_SMP */
 
-ENDPROC(parisc_kernel_start)
-
 #ifndef CONFIG_64BIT
 	.section .data..ro_after_init