mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
![Mauro Carvalho Chehab](/assets/img/avatar_default.png)
Now, all left at edac_core.h are at drivers/edac/edac_mc.c, so rename it to edac_mc.h. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
207 lines
5.3 KiB
C
207 lines
5.3 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 "edac_module.h"
|
|
|
|
#define EDAC_MOD_STR "octeon-l2c"
|
|
|
|
static void octeon_l2c_poll_oct1(struct edac_device_ctl_info *l2c)
|
|
{
|
|
union cvmx_l2t_err l2t_err, l2t_err_reset;
|
|
union cvmx_l2d_err l2d_err, l2d_err_reset;
|
|
|
|
l2t_err_reset.u64 = 0;
|
|
l2t_err.u64 = cvmx_read_csr(CVMX_L2T_ERR);
|
|
if (l2t_err.s.sec_err) {
|
|
edac_device_handle_ce(l2c, 0, 0,
|
|
"Tag Single bit error (corrected)");
|
|
l2t_err_reset.s.sec_err = 1;
|
|
}
|
|
if (l2t_err.s.ded_err) {
|
|
edac_device_handle_ue(l2c, 0, 0,
|
|
"Tag Double bit error (detected)");
|
|
l2t_err_reset.s.ded_err = 1;
|
|
}
|
|
if (l2t_err_reset.u64)
|
|
cvmx_write_csr(CVMX_L2T_ERR, l2t_err_reset.u64);
|
|
|
|
l2d_err_reset.u64 = 0;
|
|
l2d_err.u64 = cvmx_read_csr(CVMX_L2D_ERR);
|
|
if (l2d_err.s.sec_err) {
|
|
edac_device_handle_ce(l2c, 0, 1,
|
|
"Data Single bit error (corrected)");
|
|
l2d_err_reset.s.sec_err = 1;
|
|
}
|
|
if (l2d_err.s.ded_err) {
|
|
edac_device_handle_ue(l2c, 0, 1,
|
|
"Data Double bit error (detected)");
|
|
l2d_err_reset.s.ded_err = 1;
|
|
}
|
|
if (l2d_err_reset.u64)
|
|
cvmx_write_csr(CVMX_L2D_ERR, l2d_err_reset.u64);
|
|
|
|
}
|
|
|
|
static void _octeon_l2c_poll_oct2(struct edac_device_ctl_info *l2c, int tad)
|
|
{
|
|
union cvmx_l2c_err_tdtx err_tdtx, err_tdtx_reset;
|
|
union cvmx_l2c_err_ttgx err_ttgx, err_ttgx_reset;
|
|
char buf1[64];
|
|
char buf2[80];
|
|
|
|
err_tdtx_reset.u64 = 0;
|
|
err_tdtx.u64 = cvmx_read_csr(CVMX_L2C_ERR_TDTX(tad));
|
|
if (err_tdtx.s.dbe || err_tdtx.s.sbe ||
|
|
err_tdtx.s.vdbe || err_tdtx.s.vsbe)
|
|
snprintf(buf1, sizeof(buf1),
|
|
"type:%d, syn:0x%x, way:%d",
|
|
err_tdtx.s.type, err_tdtx.s.syn, err_tdtx.s.wayidx);
|
|
|
|
if (err_tdtx.s.dbe) {
|
|
snprintf(buf2, sizeof(buf2),
|
|
"L2D Double bit error (detected):%s", buf1);
|
|
err_tdtx_reset.s.dbe = 1;
|
|
edac_device_handle_ue(l2c, tad, 1, buf2);
|
|
}
|
|
if (err_tdtx.s.sbe) {
|
|
snprintf(buf2, sizeof(buf2),
|
|
"L2D Single bit error (corrected):%s", buf1);
|
|
err_tdtx_reset.s.sbe = 1;
|
|
edac_device_handle_ce(l2c, tad, 1, buf2);
|
|
}
|
|
if (err_tdtx.s.vdbe) {
|
|
snprintf(buf2, sizeof(buf2),
|
|
"VBF Double bit error (detected):%s", buf1);
|
|
err_tdtx_reset.s.vdbe = 1;
|
|
edac_device_handle_ue(l2c, tad, 1, buf2);
|
|
}
|
|
if (err_tdtx.s.vsbe) {
|
|
snprintf(buf2, sizeof(buf2),
|
|
"VBF Single bit error (corrected):%s", buf1);
|
|
err_tdtx_reset.s.vsbe = 1;
|
|
edac_device_handle_ce(l2c, tad, 1, buf2);
|
|
}
|
|
if (err_tdtx_reset.u64)
|
|
cvmx_write_csr(CVMX_L2C_ERR_TDTX(tad), err_tdtx_reset.u64);
|
|
|
|
err_ttgx_reset.u64 = 0;
|
|
err_ttgx.u64 = cvmx_read_csr(CVMX_L2C_ERR_TTGX(tad));
|
|
|
|
if (err_ttgx.s.dbe || err_ttgx.s.sbe)
|
|
snprintf(buf1, sizeof(buf1),
|
|
"type:%d, syn:0x%x, way:%d",
|
|
err_ttgx.s.type, err_ttgx.s.syn, err_ttgx.s.wayidx);
|
|
|
|
if (err_ttgx.s.dbe) {
|
|
snprintf(buf2, sizeof(buf2),
|
|
"Tag Double bit error (detected):%s", buf1);
|
|
err_ttgx_reset.s.dbe = 1;
|
|
edac_device_handle_ue(l2c, tad, 0, buf2);
|
|
}
|
|
if (err_ttgx.s.sbe) {
|
|
snprintf(buf2, sizeof(buf2),
|
|
"Tag Single bit error (corrected):%s", buf1);
|
|
err_ttgx_reset.s.sbe = 1;
|
|
edac_device_handle_ce(l2c, tad, 0, buf2);
|
|
}
|
|
if (err_ttgx_reset.u64)
|
|
cvmx_write_csr(CVMX_L2C_ERR_TTGX(tad), err_ttgx_reset.u64);
|
|
}
|
|
|
|
static void octeon_l2c_poll_oct2(struct edac_device_ctl_info *l2c)
|
|
{
|
|
int i;
|
|
for (i = 0; i < l2c->nr_instances; i++)
|
|
_octeon_l2c_poll_oct2(l2c, i);
|
|
}
|
|
|
|
static int octeon_l2c_probe(struct platform_device *pdev)
|
|
{
|
|
struct edac_device_ctl_info *l2c;
|
|
|
|
int num_tads = OCTEON_IS_MODEL(OCTEON_CN68XX) ? 4 : 1;
|
|
|
|
/* 'Tags' are block 0, 'Data' is block 1*/
|
|
l2c = edac_device_alloc_ctl_info(0, "l2c", num_tads, "l2c", 2, 0,
|
|
NULL, 0, edac_device_alloc_index());
|
|
if (!l2c)
|
|
return -ENOMEM;
|
|
|
|
l2c->dev = &pdev->dev;
|
|
platform_set_drvdata(pdev, l2c);
|
|
l2c->dev_name = dev_name(&pdev->dev);
|
|
|
|
l2c->mod_name = "octeon-l2c";
|
|
l2c->ctl_name = "octeon_l2c_err";
|
|
|
|
|
|
if (OCTEON_IS_OCTEON1PLUS()) {
|
|
union cvmx_l2t_err l2t_err;
|
|
union cvmx_l2d_err l2d_err;
|
|
|
|
l2t_err.u64 = cvmx_read_csr(CVMX_L2T_ERR);
|
|
l2t_err.s.sec_intena = 0; /* We poll */
|
|
l2t_err.s.ded_intena = 0;
|
|
cvmx_write_csr(CVMX_L2T_ERR, l2t_err.u64);
|
|
|
|
l2d_err.u64 = cvmx_read_csr(CVMX_L2D_ERR);
|
|
l2d_err.s.sec_intena = 0; /* We poll */
|
|
l2d_err.s.ded_intena = 0;
|
|
cvmx_write_csr(CVMX_L2T_ERR, l2d_err.u64);
|
|
|
|
l2c->edac_check = octeon_l2c_poll_oct1;
|
|
} else {
|
|
/* OCTEON II */
|
|
l2c->edac_check = octeon_l2c_poll_oct2;
|
|
}
|
|
|
|
if (edac_device_add_device(l2c) > 0) {
|
|
pr_err("%s: edac_device_add_device() failed\n", __func__);
|
|
goto err;
|
|
}
|
|
|
|
|
|
return 0;
|
|
|
|
err:
|
|
edac_device_free_ctl_info(l2c);
|
|
|
|
return -ENXIO;
|
|
}
|
|
|
|
static int octeon_l2c_remove(struct platform_device *pdev)
|
|
{
|
|
struct edac_device_ctl_info *l2c = platform_get_drvdata(pdev);
|
|
|
|
edac_device_del_device(&pdev->dev);
|
|
edac_device_free_ctl_info(l2c);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver octeon_l2c_driver = {
|
|
.probe = octeon_l2c_probe,
|
|
.remove = octeon_l2c_remove,
|
|
.driver = {
|
|
.name = "octeon_l2c_edac",
|
|
}
|
|
};
|
|
module_platform_driver(octeon_l2c_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
|