Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 | /* * 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>"); |