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From: Nathan Lynch <nathanl@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: tyreld@linux.ibm.com, ajd@linux.ibm.com, mmc@linux.vnet.ibm.com,
	cforno12@linux.vnet.ibm.com, drt@linux.vnet.ibm.com,
	brking@linux.ibm.com
Subject: [PATCH v2 24/28] powerpc/pseries/hibernation: remove redundant cacheinfo update
Date: Mon,  7 Dec 2020 15:51:56 -0600	[thread overview]
Message-ID: <20201207215200.1785968-25-nathanl@linux.ibm.com> (raw)
In-Reply-To: <20201207215200.1785968-1-nathanl@linux.ibm.com>

Partitions with cache nodes in the device tree can encounter the
following warning on resume:

CPU 0 already accounted in PowerPC,POWER9@0(Data)
WARNING: CPU: 0 PID: 3177 at arch/powerpc/kernel/cacheinfo.c:197 cacheinfo_cpu_online+0x640/0x820

These calls to cacheinfo_cpu_offline/online have been redundant since
commit e610a466d16a ("powerpc/pseries/mobility: rebuild cacheinfo
hierarchy post-migration").

Fixes: e610a466d16a ("powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
---
 arch/powerpc/platforms/pseries/suspend.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 703728cb95ec..6a94cc0deb88 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -13,7 +13,6 @@
 #include <asm/mmu.h>
 #include <asm/rtas.h>
 #include <asm/topology.h>
-#include "../../kernel/cacheinfo.h"
 
 static struct device suspend_dev;
 static DECLARE_COMPLETION(suspend_work);
@@ -63,9 +62,7 @@ static void pseries_suspend_enable_irqs(void)
 	 * Update configuration which can be modified based on device tree
 	 * changes during resume.
 	 */
-	cacheinfo_cpu_offline(smp_processor_id());
 	post_mobility_fixup();
-	cacheinfo_cpu_online(smp_processor_id());
 }
 
 /**
-- 
2.28.0


  parent reply	other threads:[~2020-12-07 22:40 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-07 21:51 [PATCH v2 00/28] partition suspend updates Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 01/28] powerpc/rtas: prevent suspend-related sys_rtas use on LE Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 02/28] powerpc/rtas: complete ibm,suspend-me status codes Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 03/28] powerpc/rtas: rtas_ibm_suspend_me -> rtas_ibm_suspend_me_unsafe Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 04/28] powerpc/rtas: add rtas_ibm_suspend_me() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 05/28] powerpc/rtas: add rtas_activate_firmware() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 06/28] powerpc/hvcall: add token and codes for H_VASI_SIGNAL Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 07/28] powerpc/pseries/mobility: don't error on absence of ibm, update-nodes Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 08/28] powerpc/pseries/mobility: add missing break to default case Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 09/28] powerpc/pseries/mobility: error message improvements Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 10/28] powerpc/pseries/mobility: use rtas_activate_firmware() on resume Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 11/28] powerpc/pseries/mobility: extract VASI session polling logic Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 12/28] powerpc/pseries/mobility: use stop_machine for join/suspend Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 13/28] powerpc/pseries/mobility: signal suspend cancellation to platform Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 14/28] powerpc/pseries/mobility: retry partition suspend after error Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 15/28] powerpc/rtas: dispatch partition migration requests to pseries Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 16/28] powerpc/rtas: remove rtas_ibm_suspend_me_unsafe() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 17/28] powerpc/pseries/hibernation: drop pseries_suspend_begin() from suspend ops Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 18/28] powerpc/pseries/hibernation: pass stream id via function arguments Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 19/28] powerpc/pseries/hibernation: remove pseries_suspend_cpu() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 20/28] powerpc/machdep: remove suspend_disable_cpu() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 21/28] powerpc/rtas: remove rtas_suspend_cpu() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 22/28] powerpc/pseries/hibernation: switch to rtas_ibm_suspend_me() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 23/28] powerpc/rtas: remove unused rtas_suspend_last_cpu() Nathan Lynch
2020-12-07 21:51 ` Nathan Lynch [this message]
2020-12-07 21:51 ` [PATCH v2 25/28] powerpc/pseries/hibernation: perform post-suspend fixups later Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 26/28] powerpc/pseries/hibernation: remove prepare_late() callback Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 27/28] powerpc/rtas: remove unused rtas_suspend_me_data Nathan Lynch
2020-12-07 21:52 ` [PATCH v2 28/28] powerpc/pseries/mobility: refactor node lookup during DT update Nathan Lynch
2020-12-15 10:49 ` [PATCH v2 00/28] partition suspend updates Michael Ellerman

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