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i7300_edac: enrich FBD error info for corrected errors 

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Mauro Carvalho Chehab 2010-08-27 12:13:05 -03:00
parent 8199d8cc65
commit 32f9472613
1 changed files with 51 additions and 12 deletions
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63
drivers/edac/i7300_edac.c
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@ -277,6 +277,17 @@ static const char *ferr_global_lo_name[] = {
#define NRECMEMB_CAS(v) (((v) >> 16) & 0x1fff)
#define NRECMEMB_RAS(v) ((v) & 0xffff)
#define REDMEMA 0xdc
#define RECMEMA 0xe0
#define RECMEMA_BANK(v) (((v) >> 12) & 7)
#define RECMEMA_RANK(v) (((v) >> 8) & 15)
#define RECMEMB 0xe4
#define RECMEMB_IS_WR(v) ((v) & (1 << 31))
#define RECMEMB_CAS(v) (((v) >> 16) & 0x1fff)
#define RECMEMB_RAS(v) ((v) & 0xffff)
/* Device name and register DID (Device ID) */
struct i7300_dev_info {
@ -403,10 +414,12 @@ static void i7300_process_fbd_error(struct mem_ctl_info *mci)
struct i7300_pvt *pvt;
u32 errnum, value;
u16 val16;
int branch, bank, rank, cas, ras;
unsigned branch, bank, rank, cas, ras;
u32 syndrome;
unsigned long errors;
const char *specific;
bool is_fatal, is_wr;
bool is_wr;
pvt = mci->pvt_info;
@ -418,7 +431,6 @@ static void i7300_process_fbd_error(struct mem_ctl_info *mci)
errnum = find_first_bit(&errors,
ARRAY_SIZE(ferr_fat_fbd_name));
specific = GET_ERR_FROM_TABLE(ferr_fat_fbd_name, errnum);
is_fatal = 1;
branch = (GET_FBD_FAT_IDX(value) == 2) ? 1 : 0;
pci_read_config_word(pvt->pci_dev_16_1_fsb_addr_map,
@ -436,7 +448,7 @@ static void i7300_process_fbd_error(struct mem_ctl_info *mci)
snprintf(pvt->tmp_prt_buffer, PAGE_SIZE,
"FATAL (Branch=%d DRAM-Bank=%d %s "
"RAS=%d CAS=%d Err=0x%lx (%s))",
branch >> 1, bank,
branch, bank,
is_wr ? "RDWR" : "RD",
ras, cas,
errors, specific);
@ -445,7 +457,6 @@ static void i7300_process_fbd_error(struct mem_ctl_info *mci)
edac_mc_handle_fbd_ue(mci, rank, branch << 1,
(branch << 1) + 1,
pvt->tmp_prt_buffer);
return;
}
/* read in the 1st NON-FATAL error register */
@ -456,20 +467,48 @@ static void i7300_process_fbd_error(struct mem_ctl_info *mci)
errnum = find_first_bit(&errors,
ARRAY_SIZE(ferr_nf_fbd_name));
specific = GET_ERR_FROM_TABLE(ferr_nf_fbd_name, errnum);
is_fatal = 0;
/* Clear the error bit */
pci_write_config_dword(pvt->pci_dev_16_2_fsb_err_regs,
FERR_GLOBAL_LO, value);
goto error_fbd;
pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map,
REDMEMA, &syndrome);
branch = (GET_FBD_FAT_IDX(value) == 2) ? 1 : 0;
pci_read_config_word(pvt->pci_dev_16_1_fsb_addr_map,
RECMEMA, &val16);
bank = RECMEMA_BANK(val16);
rank = RECMEMA_RANK(val16);
pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map,
RECMEMB, &value);
is_wr = RECMEMB_IS_WR(value);
cas = RECMEMB_CAS(value);
ras = RECMEMB_RAS(value);
/* Form out message */
snprintf(pvt->tmp_prt_buffer, PAGE_SIZE,
"Corrected error (Branch=%d (channel %d or %d), "
" DRAM-Bank=%d %s "
"RAS=%d CAS=%d, CE Err=0x%lx, Syndrome=0x%08x(%s))",
branch, branch << 1, (branch << 1) + 1,
bank,
is_wr ? "RDWR" : "RD",
ras, cas,
errors, syndrome, specific);
/*
* Call the helper to output message
* NOTE: Errors are reported per-branch, and not per-channel
* Currently, we don't know how to identify the right
* channel.
*/
edac_mc_handle_fbd_ce(mci, rank, branch << 1,
pvt->tmp_prt_buffer);
}
return;
error_fbd:
i7300_mc_printk(mci, KERN_EMERG, "%s FBD error on branch %d: %s\n",
is_fatal ? "Fatal" : "NOT fatal", branch, specific);
}
/*