From 4a73d3de63d4c4498e3dbf8614604c6b1dcc1fc2 Mon Sep 17 00:00:00 2001 From: Jacob Shin Date: Tue, 18 Dec 2012 15:06:10 -0600 Subject: [PATCH] EDAC, MCE, AMD: Make MC2 decoding per-family Currently only AMD Family 15h processors have special handling for MC2 errors. Since upcoming Family 16h will also need unique handling, let's make MC2 handling part of amd_decoder_ops. Signed-off-by: Jacob Shin Signed-off-by: Borislav Petkov --- drivers/edac/mce_amd.c | 56 ++++++++++++++++++++++-------------------- drivers/edac/mce_amd.h | 1 + 2 files changed, 30 insertions(+), 27 deletions(-) diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c index ad637572d8c7..e4752bec5023 100644 --- a/drivers/edac/mce_amd.c +++ b/drivers/edac/mce_amd.c @@ -399,12 +399,9 @@ static void decode_mc1_mce(struct mce *m) pr_emerg(HW_ERR "Corrupted MC1 MCE info?\n"); } -static void decode_mc2_mce(struct mce *m) +static bool k8_mc2_mce(u16 ec, u8 xec) { - u16 ec = EC(m->status); - u8 xec = XEC(m->status, xec_mask); - - pr_emerg(HW_ERR "MC2 Error"); + bool ret = true; if (xec == 0x1) pr_cont(" in the write data buffers.\n"); @@ -429,24 +426,18 @@ static void decode_mc2_mce(struct mce *m) pr_cont(": %s parity/ECC error during data " "access from L2.\n", R4_MSG(ec)); else - goto wrong_mc2_mce; + ret = false; } else - goto wrong_mc2_mce; + ret = false; } else - goto wrong_mc2_mce; + ret = false; - return; - - wrong_mc2_mce: - pr_emerg(HW_ERR "Corrupted MC2 MCE info?\n"); + return ret; } -static void decode_f15_mc2_mce(struct mce *m) +static bool f15h_mc2_mce(u16 ec, u8 xec) { - u16 ec = EC(m->status); - u8 xec = XEC(m->status, xec_mask); - - pr_emerg(HW_ERR "MC2 Error: "); + bool ret = true; if (TLB_ERROR(ec)) { if (xec == 0x0) @@ -454,10 +445,10 @@ static void decode_f15_mc2_mce(struct mce *m) else if (xec == 0x1) pr_cont("Poison data provided for TLB fill.\n"); else - goto wrong_f15_mc2_mce; + ret = false; } else if (BUS_ERROR(ec)) { if (xec > 2) - goto wrong_f15_mc2_mce; + ret = false; pr_cont("Error during attempted NB data read.\n"); } else if (MEM_ERROR(ec)) { @@ -471,14 +462,22 @@ static void decode_f15_mc2_mce(struct mce *m) break; default: - goto wrong_f15_mc2_mce; + ret = false; } } - return; + return ret; +} - wrong_f15_mc2_mce: - pr_emerg(HW_ERR "Corrupted MC2 MCE info?\n"); +static void decode_mc2_mce(struct mce *m) +{ + u16 ec = EC(m->status); + u8 xec = XEC(m->status, xec_mask); + + pr_emerg(HW_ERR "MC2 Error: "); + + if (!fam_ops->mc2_mce(ec, xec)) + pr_cont(HW_ERR "Corrupted MC2 MCE info?\n"); } static void decode_mc3_mce(struct mce *m) @@ -702,10 +701,7 @@ int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) break; case 2: - if (c->x86 == 0x15) - decode_f15_mc2_mce(m); - else - decode_mc2_mce(m); + decode_mc2_mce(m); break; case 3: @@ -783,33 +779,39 @@ static int __init mce_amd_init(void) case 0xf: fam_ops->mc0_mce = k8_mc0_mce; fam_ops->mc1_mce = k8_mc1_mce; + fam_ops->mc2_mce = k8_mc2_mce; break; case 0x10: fam_ops->mc0_mce = f10h_mc0_mce; fam_ops->mc1_mce = k8_mc1_mce; + fam_ops->mc2_mce = k8_mc2_mce; break; case 0x11: fam_ops->mc0_mce = k8_mc0_mce; fam_ops->mc1_mce = k8_mc1_mce; + fam_ops->mc2_mce = k8_mc2_mce; break; case 0x12: fam_ops->mc0_mce = f12h_mc0_mce; fam_ops->mc1_mce = k8_mc1_mce; + fam_ops->mc2_mce = k8_mc2_mce; break; case 0x14: nb_err_cpumask = 0x3; fam_ops->mc0_mce = f14h_mc0_mce; fam_ops->mc1_mce = f14h_mc1_mce; + fam_ops->mc2_mce = k8_mc2_mce; break; case 0x15: xec_mask = 0x1f; fam_ops->mc0_mce = f15h_mc0_mce; fam_ops->mc1_mce = f15h_mc1_mce; + fam_ops->mc2_mce = f15h_mc2_mce; break; default: diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h index 679679951e23..000f6e2c4cbe 100644 --- a/drivers/edac/mce_amd.h +++ b/drivers/edac/mce_amd.h @@ -78,6 +78,7 @@ extern const char * const ii_msgs[]; struct amd_decoder_ops { bool (*mc0_mce)(u16, u8); bool (*mc1_mce)(u16, u8); + bool (*mc2_mce)(u16, u8); }; void amd_report_gart_errors(bool);