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* [PATCH 1/4] powerpc/eeh: Add restore_bars operation
@ 2013-12-25  8:58 Gavin Shan
  2013-12-25  8:58 ` [PATCH 2/4] powerpc/eeh: Cache AER capability in EEH dev Gavin Shan
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Gavin Shan @ 2013-12-25  8:58 UTC (permalink / raw)
  To: linuxppc-dev; +Cc: Gavin Shan

After reset on the specific PE or PHB, we never configure AER
correctly on PowerNV platform. We needn't care it on pSeries
platform. The patch introduces additional EEH operation eeh_ops::
restore_bars() so that we have chance to configure AER correctly
for PowerNV platform.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/eeh.h               |    1 +
 arch/powerpc/kernel/eeh_pe.c                 |    3 +++
 arch/powerpc/platforms/pseries/eeh_pseries.c |    4 +++-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index d3e5e9b..4b709bf 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -157,6 +157,7 @@ struct eeh_ops {
 	int (*read_config)(struct device_node *dn, int where, int size, u32 *val);
 	int (*write_config)(struct device_node *dn, int where, int size, u32 val);
 	int (*next_error)(struct eeh_pe **pe);
+	void (*restore_bars)(struct device_node *dn);
 };
 
 extern struct eeh_ops *eeh_ops;
diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c
index f945053..19eb95a 100644
--- a/arch/powerpc/kernel/eeh_pe.c
+++ b/arch/powerpc/kernel/eeh_pe.c
@@ -737,6 +737,9 @@ static void *eeh_restore_one_device_bars(void *data, void *flag)
 	else
 		eeh_restore_device_bars(edev, dn);
 
+	if (eeh_ops->restore_bars)
+		eeh_ops->restore_bars(dn);
+
 	return NULL;
 }
 
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index ccb633e..623adaf 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -689,7 +689,9 @@ static struct eeh_ops pseries_eeh_ops = {
 	.get_log		= pseries_eeh_get_log,
 	.configure_bridge       = pseries_eeh_configure_bridge,
 	.read_config		= pseries_eeh_read_config,
-	.write_config		= pseries_eeh_write_config
+	.write_config		= pseries_eeh_write_config,
+	.next_error		= NULL,
+	.restore_bars		= NULL
 };
 
 /**
-- 
1.7.10.4

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-01-01  3:29 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-12-25  8:58 [PATCH 1/4] powerpc/eeh: Add restore_bars operation Gavin Shan
2013-12-25  8:58 ` [PATCH 2/4] powerpc/eeh: Cache AER capability in EEH dev Gavin Shan
2013-12-25  8:58 ` [PATCH 3/4] powerpc/powernv: Detect PHB chip revision Gavin Shan
2013-12-25  8:58 ` [PATCH 4/4] powerpc/eeh: Eliminate AER gap Gavin Shan
2013-12-27 22:20 ` [PATCH 1/4] powerpc/eeh: Add restore_bars operation Benjamin Herrenschmidt
2014-01-01  3:29   ` Gavin Shan

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