From: Gavin Shan <gwshan@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Gavin Shan <gwshan@linux.vnet.ibm.com>
Subject: [PATCH 2/3] powerpc/eeh: Tag reset state for user owned PE
Date: Tue, 23 Sep 2014 11:09:03 +1000 [thread overview]
Message-ID: <1411434544-10025-2-git-send-email-gwshan@linux.vnet.ibm.com> (raw)
In-Reply-To: <1411434544-10025-1-git-send-email-gwshan@linux.vnet.ibm.com>
PE would be owned by userland, which probably request PE reset
done in host side. During the reset, we should drop the PCI
config accesses to the PE with help of flag EEH_PE_RESET.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
---
arch/powerpc/kernel/eeh.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 545860f..059aa00 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -1463,6 +1463,7 @@ int eeh_pe_reset(struct eeh_pe *pe, int option)
switch (option) {
case EEH_RESET_DEACTIVATE:
ret = eeh_ops->reset(pe, option);
+ eeh_pe_state_clear(pe, EEH_PE_RESET);
if (ret)
break;
@@ -1477,6 +1478,7 @@ int eeh_pe_reset(struct eeh_pe *pe, int option)
*/
eeh_ops->set_option(pe, EEH_OPT_FREEZE_PE);
+ eeh_pe_state_mark(pe, EEH_PE_RESET);
ret = eeh_ops->reset(pe, option);
break;
default:
--
1.8.3.2
next prev parent reply other threads:[~2014-09-23 1:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-23 1:09 [PATCH 1/3] powerpc/powernv: Sync OpalPciResetScope with firmware Gavin Shan
2014-09-23 1:09 ` Gavin Shan [this message]
2014-09-23 1:09 ` [PATCH 3/3] powerpc/eeh: Emulate EEH recovery for VFIO devices Gavin Shan
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