From: Gavin Shan <shangw@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Subject: [PATCH 31/31] powerpc/eeh: Debugfs for error injection
Date: Tue, 18 Jun 2013 16:33:55 +0800 [thread overview]
Message-ID: <1371544435-4943-32-git-send-email-shangw@linux.vnet.ibm.com> (raw)
In-Reply-To: <1371544435-4943-1-git-send-email-shangw@linux.vnet.ibm.com>
The patch creates debugfs entries (powerpc/PCIxxxx/err_injct) for
injecting EEH errors for testing purpose.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
---
arch/powerpc/platforms/powernv/eeh-ioda.c | 31 +++++++++++++++++++++++++++++
1 files changed, 31 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index 4961270..4287652 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -12,6 +12,7 @@
*/
#include <linux/bootmem.h>
+#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/io.h>
@@ -50,6 +51,29 @@ static void ioda_eeh_event(u64 events)
eeh_send_failure_event(NULL);
}
+#ifdef CONFIG_DEBUG_FS
+static int ioda_eeh_dbgfs_set(void *data, u64 val)
+{
+ struct pci_controller *hose = data;
+ struct pnv_phb *phb = hose->private_data;
+
+ out_be64(phb->regs + 0xD10, val);
+ return 0;
+}
+
+static int ioda_eeh_dbgfs_get(void *data, u64 *val)
+{
+ struct pci_controller *hose = data;
+ struct pnv_phb *phb = hose->private_data;
+
+ *val = in_be64(phb->regs + 0xD10);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_dbgfs_ops, ioda_eeh_dbgfs_get,
+ ioda_eeh_dbgfs_set, "0x%llx\n");
+#endif /* CONFIG_DEBUG_FS */
+
/**
* ioda_eeh_post_init - Chip dependent post initialization
* @hose: PCI controller
@@ -84,6 +108,13 @@ static int ioda_eeh_post_init(struct pci_controller *hose)
}
}
+#ifdef CONFIG_DEBUG_FS
+ if (phb->dbgfs)
+ debugfs_create_file("err_injct", 0600,
+ phb->dbgfs, hose,
+ &ioda_eeh_dbgfs_ops);
+#endif
+
phb->eeh_enabled = 1;
}
--
1.7.5.4
next prev parent reply other threads:[~2013-06-18 8:35 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-18 8:33 [PATCH v5 00/31] EEH Support for PowerNV platform Gavin Shan
2013-06-18 8:33 ` [PATCH 01/31] powerpc/eeh: Move common part to kernel directory Gavin Shan
2013-06-19 3:58 ` Michael Neuling
2013-06-19 6:11 ` Gavin Shan
2013-06-19 6:18 ` Gavin Shan
2013-06-19 7:29 ` Gavin Shan
2013-06-18 8:33 ` [PATCH 02/31] powerpc/eeh: Cleanup for EEH core Gavin Shan
2013-06-19 6:37 ` Gavin Shan
2013-06-18 8:33 ` [PATCH 03/31] powerpc/eeh: Make eeh_phb_pe_get() public Gavin Shan
2013-06-18 8:33 ` [PATCH 04/31] powerpc/eeh: Make eeh_pe_get() public Gavin Shan
2013-06-18 8:33 ` [PATCH 05/31] powerpc/eeh: Trace PCI bus from PE Gavin Shan
2013-06-19 7:21 ` Mike Qiu
2013-06-19 8:48 ` Gavin Shan
2013-06-19 10:20 ` Gavin Shan
2013-06-18 8:33 ` [PATCH 06/31] powerpc/eeh: Make eeh_init() public Gavin Shan
2013-06-18 8:33 ` [PATCH 07/31] powerpc/eeh: EEH post initialization operation Gavin Shan
2013-06-18 8:33 ` [PATCH 08/31] powerpc/eeh: Refactor eeh_reset_pe_once() Gavin Shan
2013-06-18 8:33 ` [PATCH 09/31] powerpc/eeh: Delay EEH probe during hotplug Gavin Shan
2013-06-18 8:33 ` [PATCH 10/31] powerpc/eeh: Single kthread to handle events Gavin Shan
2013-06-18 8:33 ` [PATCH 11/31] powerpc/eeh: Trace time on first error for PE Gavin Shan
2013-06-18 8:33 ` [PATCH 12/31] powerpc/eeh: Allow to purge EEH events Gavin Shan
2013-06-18 8:33 ` [PATCH 13/31] powerpc/eeh: Export confirm_error_lock Gavin Shan
2013-06-18 8:33 ` [PATCH 14/31] powerpc/eeh: EEH core to handle special event Gavin Shan
2013-06-19 6:19 ` Gavin Shan
2013-06-18 8:33 ` [PATCH 15/31] powerpc/eeh: Sync OPAL API with firmware Gavin Shan
2013-06-18 8:33 ` [PATCH 16/31] powerpc/eeh: EEH backend for P7IOC Gavin Shan
2013-06-18 8:33 ` [PATCH 17/31] powerpc/eeh: I/O chip post initialization Gavin Shan
2013-06-18 8:33 ` [PATCH 18/31] powerpc/eeh: I/O chip EEH enable option Gavin Shan
2013-06-18 8:33 ` [PATCH 19/31] powerpc/eeh: I/O chip EEH state retrieval Gavin Shan
2013-06-18 8:33 ` [PATCH 20/31] powerpc/eeh: I/O chip PE reset Gavin Shan
2013-06-18 8:33 ` [PATCH 21/31] powerpc/eeh: I/O chip PE log and bridge setup Gavin Shan
2013-06-18 8:33 ` [PATCH 22/31] powerpc/eeh: I/O chip next error Gavin Shan
2013-06-18 8:33 ` [PATCH 23/31] powerpc/eeh: PowerNV EEH backends Gavin Shan
2013-06-18 8:33 ` [PATCH 24/31] powerpc/eeh: Initialization for PowerNV Gavin Shan
2013-06-18 8:33 ` [PATCH 25/31] powerpc/eeh: Enable EEH check for config access Gavin Shan
2013-06-18 8:33 ` [PATCH 26/31] powerpc/eeh: Allow to check fenced PHB proactively Gavin Shan
2013-06-18 8:33 ` [PATCH 27/31] powernv/opal: Notifier for OPAL events Gavin Shan
2013-06-18 8:33 ` [PATCH 28/31] powernv/opal: Disable OPAL notifier upon poweroff Gavin Shan
2013-06-18 8:33 ` [PATCH 29/31] powerpc/eeh: Register OPAL notifier for PCI error Gavin Shan
2013-06-18 8:33 ` [PATCH 30/31] powerpc/powernv: Debugfs directory for PHB Gavin Shan
2013-06-18 8:33 ` Gavin Shan [this message]
2013-06-18 8:41 ` [PATCH v5 00/31] EEH Support for PowerNV platform Gavin Shan
2013-06-20 5:20 [PATCH v6 " Gavin Shan
2013-06-20 5:21 ` [PATCH 31/31] powerpc/eeh: Debugfs for error injection Gavin Shan
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