From: Cédric Le Goater <clg@kaod.org>
Date: Tue, 8 May 2018 07:05:16 +0000 (+0200)
Subject: powerpc/xive: shutdown XIVE when kexec or kdump is performed
X-Git-Tag: v5.15~8686^2~208
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=72224846fb1f066cc04dc0a38d910221b5719bdf;p=platform%2Fkernel%2Flinux-starfive.git

powerpc/xive: shutdown XIVE when kexec or kdump is performed

The hcall H_INT_RESET should be called to make sure XIVE is fully
reseted.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c
index 3fe1267..46fbaef 100644
--- a/arch/powerpc/platforms/pseries/kexec.c
+++ b/arch/powerpc/platforms/pseries/kexec.c
@@ -57,8 +57,11 @@ void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
 		}
 	}
 
-	if (xive_enabled())
+	if (xive_enabled()) {
 		xive_kexec_teardown_cpu(secondary);
-	else
+
+		if (!secondary)
+			xive_shutdown();
+	} else
 		xics_kexec_teardown_cpu(secondary);
 }