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authorMauro Carvalho Chehab <mchehab@redhat.com>2013-01-11 13:28:19 -0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-01-11 13:28:19 -0200
commit734d1ece37fbf3d2ddfc71bc6c69e0fe35f02542 (patch)
treec4805dd7e746b1feb9e09e9849f3245d0b2c0c6b /drivers/edac/octeon_edac-pci.c
parent216c82c6aba63eeb49d7654b448e0d47bea255bb (diff)
parent9931faca02c604c22335f5a935a501bb2ace6e20 (diff)
Merge tag 'v3.8-rc3' into v4l_for_linus
Linux 3.8-rc3 * tag 'v3.8-rc3': (11110 commits) Linux 3.8-rc3 mm: reinstante dropped pmd_trans_splitting() check cred: Remove tgcred pointer from struct cred drm/ttm: fix fence locking in ttm_buffer_object_transfer ARM: clps711x: Fix bad merge of clockevents setup ARM: highbank: save and restore L2 cache and GIC on suspend ARM: highbank: add a power request clear ARM: highbank: fix secondary boot and hotplug ARM: highbank: fix typos with hignbank in power request functions ARM: dts: fix highbank cpu mpidr values ARM: dts: add device_type prop to cpu nodes on Calxeda platforms drm/prime: drop reference on imported dma-buf come from gem xen/netfront: improve truesize tracking ARM: mx5: Fix MX53 flexcan2 clock ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array sctp: fix Kconfig bug in default cookie hmac selection EDAC: Cleanup device deregistering path EDAC: Fix EDAC Kconfig menu EDAC: Fix kernel panic on module unloading ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec) ...
Diffstat (limited to 'drivers/edac/octeon_edac-pci.c')
-rw-r--r--drivers/edac/octeon_edac-pci.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/edac/octeon_edac-pci.c b/drivers/edac/octeon_edac-pci.c
new file mode 100644
index 00000000000..9ca73cec74e
--- /dev/null
+++ b/drivers/edac/octeon_edac-pci.c
@@ -0,0 +1,111 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 Cavium, Inc.
+ * Copyright (C) 2009 Wind River Systems,
+ * written by Ralf Baechle <ralf@linux-mips.org>
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/edac.h>
+
+#include <asm/octeon/cvmx.h>
+#include <asm/octeon/cvmx-npi-defs.h>
+#include <asm/octeon/cvmx-pci-defs.h>
+#include <asm/octeon/octeon.h>
+
+#include "edac_core.h"
+#include "edac_module.h"
+
+static void octeon_pci_poll(struct edac_pci_ctl_info *pci)
+{
+ union cvmx_pci_cfg01 cfg01;
+
+ cfg01.u32 = octeon_npi_read32(CVMX_NPI_PCI_CFG01);
+ if (cfg01.s.dpe) { /* Detected parity error */
+ edac_pci_handle_pe(pci, pci->ctl_name);
+ cfg01.s.dpe = 1; /* Reset */
+ octeon_npi_write32(CVMX_NPI_PCI_CFG01, cfg01.u32);
+ }
+ if (cfg01.s.sse) {
+ edac_pci_handle_npe(pci, "Signaled System Error");
+ cfg01.s.sse = 1; /* Reset */
+ octeon_npi_write32(CVMX_NPI_PCI_CFG01, cfg01.u32);
+ }
+ if (cfg01.s.rma) {
+ edac_pci_handle_npe(pci, "Received Master Abort");
+ cfg01.s.rma = 1; /* Reset */
+ octeon_npi_write32(CVMX_NPI_PCI_CFG01, cfg01.u32);
+ }
+ if (cfg01.s.rta) {
+ edac_pci_handle_npe(pci, "Received Target Abort");
+ cfg01.s.rta = 1; /* Reset */
+ octeon_npi_write32(CVMX_NPI_PCI_CFG01, cfg01.u32);
+ }
+ if (cfg01.s.sta) {
+ edac_pci_handle_npe(pci, "Signaled Target Abort");
+ cfg01.s.sta = 1; /* Reset */
+ octeon_npi_write32(CVMX_NPI_PCI_CFG01, cfg01.u32);
+ }
+ if (cfg01.s.mdpe) {
+ edac_pci_handle_npe(pci, "Master Data Parity Error");
+ cfg01.s.mdpe = 1; /* Reset */
+ octeon_npi_write32(CVMX_NPI_PCI_CFG01, cfg01.u32);
+ }
+}
+
+static int octeon_pci_probe(struct platform_device *pdev)
+{
+ struct edac_pci_ctl_info *pci;
+ int res = 0;
+
+ pci = edac_pci_alloc_ctl_info(0, "octeon_pci_err");
+ if (!pci)
+ return -ENOMEM;
+
+ pci->dev = &pdev->dev;
+ platform_set_drvdata(pdev, pci);
+ pci->dev_name = dev_name(&pdev->dev);
+
+ pci->mod_name = "octeon-pci";
+ pci->ctl_name = "octeon_pci_err";
+ pci->edac_check = octeon_pci_poll;
+
+ if (edac_pci_add_device(pci, 0) > 0) {
+ pr_err("%s: edac_pci_add_device() failed\n", __func__);
+ goto err;
+ }
+
+ return 0;
+
+err:
+ edac_pci_free_ctl_info(pci);
+
+ return res;
+}
+
+static int octeon_pci_remove(struct platform_device *pdev)
+{
+ struct edac_pci_ctl_info *pci = platform_get_drvdata(pdev);
+
+ edac_pci_del_device(&pdev->dev);
+ edac_pci_free_ctl_info(pci);
+
+ return 0;
+}
+
+static struct platform_driver octeon_pci_driver = {
+ .probe = octeon_pci_probe,
+ .remove = octeon_pci_remove,
+ .driver = {
+ .name = "octeon_pci_edac",
+ }
+};
+module_platform_driver(octeon_pci_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");