112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
/*
|
|
* 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 __devinit 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>");
|