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path: root/drivers/edac/octeon_edac-lmc.c
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Diffstat (limited to 'drivers/edac/octeon_edac-lmc.c')
-rw-r--r--drivers/edac/octeon_edac-lmc.c232
1 files changed, 134 insertions, 98 deletions
diff --git a/drivers/edac/octeon_edac-lmc.c b/drivers/edac/octeon_edac-lmc.c
index e0c1e44187bc..33bca766e37d 100644
--- a/drivers/edac/octeon_edac-lmc.c
+++ b/drivers/edac/octeon_edac-lmc.c
@@ -12,139 +12,175 @@
#include <linux/io.h>
#include <linux/edac.h>
-#include <asm/octeon/cvmx.h>
+#include <asm/octeon/octeon.h>
+#include <asm/octeon/cvmx-lmcx-defs.h>
#include "edac_core.h"
#include "edac_module.h"
-#include "octeon_edac-lmc.h"
-#define EDAC_MOD_STR "octeon"
+#define OCTEON_MAX_MC 4
-static struct mem_ctl_info *mc_cavium;
-static void *lmc_base;
-
-static void co_lmc_poll(struct mem_ctl_info *mci)
+static void octeon_lmc_edac_poll(struct mem_ctl_info *mci)
{
- union lmc_mem_cfg0 cfg0;
- union lmc_fadr fadr;
+ union cvmx_lmcx_mem_cfg0 cfg0;
+ bool do_clear = false;
char msg[64];
- fadr.u64 = readq(lmc_base + LMC_FADR);
- cfg0.u64 = readq(lmc_base + LMC_MEM_CFG0);
- snprintf(msg, sizeof(msg), "DIMM %d rank %d bank %d row %d col %d",
- fadr.fdimm, fadr.fbunk, fadr.fbank, fadr.frow, fadr.fcol);
-
- if (cfg0.sec_err) {
- edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, 0, 0, 0, -1, -1, -1,
- msg, "");
-
- cfg0.intr_sec_ena = -1; /* Done, re-arm */
+ cfg0.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(mci->mc_idx));
+ if (cfg0.s.sec_err || cfg0.s.ded_err) {
+ union cvmx_lmcx_fadr fadr;
+ fadr.u64 = cvmx_read_csr(CVMX_LMCX_FADR(mci->mc_idx));
+ snprintf(msg, sizeof(msg),
+ "DIMM %d rank %d bank %d row %d col %d",
+ fadr.cn30xx.fdimm, fadr.cn30xx.fbunk,
+ fadr.cn30xx.fbank, fadr.cn30xx.frow, fadr.cn30xx.fcol);
}
- if (cfg0.ded_err) {
- edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, 0, 0, 0, -1, -1, -1,
- msg, "");
- cfg0.intr_ded_ena = -1; /* Done, re-arm */
+ if (cfg0.s.sec_err) {
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, 0, 0, 0,
+ -1, -1, -1, msg, "");
+ cfg0.s.sec_err = -1; /* Done, re-arm */
+ do_clear = true;
}
- writeq(cfg0.u64, lmc_base + LMC_MEM_CFG0);
+ if (cfg0.s.ded_err) {
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, 0, 0, 0,
+ -1, -1, -1, msg, "");
+ cfg0.s.ded_err = -1; /* Done, re-arm */
+ do_clear = true;
+ }
+ if (do_clear)
+ cvmx_write_csr(CVMX_LMCX_MEM_CFG0(mci->mc_idx), cfg0.u64);
}
-static int __devinit co_lmc_probe(struct platform_device *pdev)
+static void octeon_lmc_edac_poll_o2(struct mem_ctl_info *mci)
{
- struct mem_ctl_info *mci;
- union lmc_mem_cfg0 cfg0;
- int res = 0;
-
- mci = edac_mc_alloc(0, 0, 0, 0);
- if (!mci)
- return -ENOMEM;
-
- mci->pdev = &pdev->dev;
- platform_set_drvdata(pdev, mci);
- mci->dev_name = dev_name(&pdev->dev);
+ union cvmx_lmcx_int int_reg;
+ bool do_clear = false;
+ char msg[64];
- mci->mod_name = "octeon-lmc";
- mci->ctl_name = "co_lmc_err";
- mci->edac_check = co_lmc_poll;
+ int_reg.u64 = cvmx_read_csr(CVMX_LMCX_INT(mci->mc_idx));
+ if (int_reg.s.sec_err || int_reg.s.ded_err) {
+ union cvmx_lmcx_fadr fadr;
+ fadr.u64 = cvmx_read_csr(CVMX_LMCX_FADR(mci->mc_idx));
+ snprintf(msg, sizeof(msg),
+ "DIMM %d rank %d bank %d row %d col %d",
+ fadr.cn61xx.fdimm, fadr.cn61xx.fbunk,
+ fadr.cn61xx.fbank, fadr.cn61xx.frow, fadr.cn61xx.fcol);
+ }
- if (edac_mc_add_mc(mci) > 0) {
- pr_err("%s: edac_mc_add_mc() failed\n", __func__);
- goto err;
+ if (int_reg.s.sec_err) {
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, 0, 0, 0,
+ -1, -1, -1, msg, "");
+ int_reg.s.sec_err = -1; /* Done, re-arm */
+ do_clear = true;
}
- cfg0.u64 = readq(lmc_base + LMC_MEM_CFG0); /* We poll */
- cfg0.intr_ded_ena = 0;
- cfg0.intr_sec_ena = 0;
- writeq(cfg0.u64, lmc_base + LMC_MEM_CFG0);
+ if (int_reg.s.ded_err) {
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, 0, 0, 0,
+ -1, -1, -1, msg, "");
+ int_reg.s.ded_err = -1; /* Done, re-arm */
+ do_clear = true;
+ }
+ if (do_clear)
+ cvmx_write_csr(CVMX_LMCX_INT(mci->mc_idx), int_reg.u64);
+}
- mc_cavium = mci;
+static int __devinit octeon_lmc_edac_probe(struct platform_device *pdev)
+{
+ struct mem_ctl_info *mci;
+ struct edac_mc_layer layers[1];
+ int mc = pdev->id;
+
+ layers[0].type = EDAC_MC_LAYER_CHANNEL;
+ layers[0].size = 1;
+ layers[0].is_virt_csrow = false;
+
+ if (OCTEON_IS_MODEL(OCTEON_FAM_1_PLUS)) {
+ union cvmx_lmcx_mem_cfg0 cfg0;
+
+ cfg0.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(0));
+ if (!cfg0.s.ecc_ena) {
+ dev_info(&pdev->dev, "Disabled (ECC not enabled)\n");
+ return 0;
+ }
+
+ mci = edac_mc_alloc(mc, ARRAY_SIZE(layers), layers, 0);
+ if (!mci)
+ return -ENXIO;
+
+ mci->pdev = &pdev->dev;
+ mci->dev_name = dev_name(&pdev->dev);
+
+ mci->mod_name = "octeon-lmc";
+ mci->ctl_name = "octeon-lmc-err";
+ mci->edac_check = octeon_lmc_edac_poll;
+
+ if (edac_mc_add_mc(mci)) {
+ dev_err(&pdev->dev, "edac_mc_add_mc() failed\n");
+ edac_mc_free(mci);
+ return -ENXIO;
+ }
+
+ cfg0.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(mc));
+ cfg0.s.intr_ded_ena = 0; /* We poll */
+ cfg0.s.intr_sec_ena = 0;
+ cvmx_write_csr(CVMX_LMCX_MEM_CFG0(mc), cfg0.u64);
+ } else {
+ /* OCTEON II */
+ union cvmx_lmcx_int_en en;
+ union cvmx_lmcx_config config;
+
+ config.u64 = cvmx_read_csr(CVMX_LMCX_CONFIG(0));
+ if (!config.s.ecc_ena) {
+ dev_info(&pdev->dev, "Disabled (ECC not enabled)\n");
+ return 0;
+ }
+
+ mci = edac_mc_alloc(mc, ARRAY_SIZE(layers), layers, 0);
+ if (!mci)
+ return -ENXIO;
+
+ mci->pdev = &pdev->dev;
+ mci->dev_name = dev_name(&pdev->dev);
+
+ mci->mod_name = "octeon-lmc";
+ mci->ctl_name = "co_lmc_err";
+ mci->edac_check = octeon_lmc_edac_poll_o2;
+
+ if (edac_mc_add_mc(mci)) {
+ dev_err(&pdev->dev, "edac_mc_add_mc() failed\n");
+ edac_mc_free(mci);
+ return -ENXIO;
+ }
+
+ en.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(mc));
+ en.s.intr_ded_ena = 0; /* We poll */
+ en.s.intr_sec_ena = 0;
+ cvmx_write_csr(CVMX_LMCX_MEM_CFG0(mc), en.u64);
+ }
+ platform_set_drvdata(pdev, mci);
return 0;
-
-err:
- edac_mc_free(mci);
-
- return res;
}
-static int co_lmc_remove(struct platform_device *pdev)
+static int octeon_lmc_edac_remove(struct platform_device *pdev)
{
struct mem_ctl_info *mci = platform_get_drvdata(pdev);
- mc_cavium = NULL;
edac_mc_del_mc(&pdev->dev);
edac_mc_free(mci);
-
return 0;
}
-static struct platform_driver co_lmc_driver = {
- .probe = co_lmc_probe,
- .remove = co_lmc_remove,
+static struct platform_driver octeon_lmc_edac_driver = {
+ .probe = octeon_lmc_edac_probe,
+ .remove = octeon_lmc_edac_remove,
.driver = {
- .name = "co_lmc_edac",
+ .name = "octeon_lmc_edac",
}
};
-
-static int __init co_edac_init(void)
-{
- union lmc_mem_cfg0 cfg0;
- int ret;
-
- lmc_base = ioremap_nocache(LMC_BASE, LMC_SIZE);
- if (!lmc_base)
- return -ENOMEM;
-
- cfg0.u64 = readq(lmc_base + LMC_MEM_CFG0);
- if (!cfg0.ecc_ena) {
- pr_info(EDAC_MOD_STR " LMC EDAC: ECC disabled, good bye\n");
- ret = -ENODEV;
- goto out;
- }
-
- ret = platform_driver_register(&co_lmc_driver);
- if (ret) {
- pr_warning(EDAC_MOD_STR " LMC EDAC failed to register\n");
- goto out;
- }
-
- return ret;
-
-out:
- iounmap(lmc_base);
-
- return ret;
-}
-
-static void __exit co_edac_exit(void)
-{
- platform_driver_unregister(&co_lmc_driver);
- iounmap(lmc_base);
-}
-
-module_init(co_edac_init);
-module_exit(co_edac_exit);
+module_platform_driver(octeon_lmc_edac_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");