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i7300_edac: Add support for reporting FBD errors 

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2010-08-27 10:22:36 -03:00
parent 15154c57c6
commit 57021918aa
1 changed files with 125 additions and 0 deletions
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125
drivers/edac/i7300_edac.c
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@ -161,6 +161,63 @@ static const char *numcol_toString[] = {
/************************************************
* i7300 Register definitions for error detection
************************************************/
/*
* Device 16.1: FBD Error Registers
*/
#define FERR_FAT_FBD 0x98
static const char *ferr_fat_fbd_name[] = {
[22] = "Non-Redundant Fast Reset Timeout",
[2] = ">Tmid Thermal event with intelligent throttling disabled",
[1] = "Memory or FBD configuration CRC read error",
[0] = "Memory Write error on non-redundant retry or "
"FBD configuration Write error on retry",
};
#define GET_FBD_FAT_IDX(fbderr) (fbderr & (3 << 28))
#define FERR_FAT_FBD_ERR_MASK ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3))
#define FERR_NF_FBD 0xa0
static const char *ferr_nf_fbd_name[] = {
[24] = "DIMM-Spare Copy Completed",
[23] = "DIMM-Spare Copy Initiated",
[22] = "Redundant Fast Reset Timeout",
[21] = "Memory Write error on redundant retry",
[18] = "SPD protocol Error",
[17] = "FBD Northbound parity error on FBD Sync Status",
[16] = "Correctable Patrol Data ECC",
[15] = "Correctable Resilver- or Spare-Copy Data ECC",
[14] = "Correctable Mirrored Demand Data ECC",
[13] = "Correctable Non-Mirrored Demand Data ECC",
[11] = "Memory or FBD configuration CRC read error",
[10] = "FBD Configuration Write error on first attempt",
[9] = "Memory Write error on first attempt",
[8] = "Non-Aliased Uncorrectable Patrol Data ECC",
[7] = "Non-Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",
[6] = "Non-Aliased Uncorrectable Mirrored Demand Data ECC",
[5] = "Non-Aliased Uncorrectable Non-Mirrored Demand Data ECC",
[4] = "Aliased Uncorrectable Patrol Data ECC",
[3] = "Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",
[2] = "Aliased Uncorrectable Mirrored Demand Data ECC",
[1] = "Aliased Uncorrectable Non-Mirrored Demand Data ECC",
[0] = "Uncorrectable Data ECC on Replay",
};
#define GET_FBD_NF_IDX(fbderr) (fbderr & (3 << 28))
#define FERR_NF_FBD_ERR_MASK ((1 << 24) | (1 << 23) | (1 << 22) | (1 << 21) |\
(1 << 18) | (1 << 17) | (1 << 16) | (1 << 15) |\
(1 << 14) | (1 << 13) | (1 << 11) | (1 << 10) |\
(1 << 9) | (1 << 8) | (1 << 7) | (1 << 6) |\
(1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) |\
(1 << 1) | (1 << 0))
#define EMASK_FBD 0xa8
#define EMASK_FBD_ERR_MASK ((1 << 27) | (1 << 26) | (1 << 25) | (1 << 24) |\
(1 << 22) | (1 << 21) | (1 << 20) | (1 << 19) |\
(1 << 18) | (1 << 17) | (1 << 16) | (1 << 14) |\
(1 << 13) | (1 << 12) | (1 << 11) | (1 << 10) |\
(1 << 9) | (1 << 8) | (1 << 7) | (1 << 6) |\
(1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) |\
(1 << 1) | (1 << 0))
/*
* Device 16.2: Global Error Registers
*/
@ -338,6 +395,61 @@ error_global:
is_fatal ? "Fatal" : "NOT fatal", specific);
}
/*
* i7300_process_fbd_error Retrieve the hardware error information from
* the hardware and cache it in the 'info'
* structure
*/
static void i7300_process_fbd_error(struct mem_ctl_info *mci,
struct i7300_error_info *info)
{
struct i7300_pvt *pvt;
u32 errnum, value;
int branch;
unsigned long errors;
const char *specific;
bool is_fatal;
pvt = mci->pvt_info;
/* read in the 1st FATAL error register */
pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map,
FERR_FAT_FBD, &value);
if (unlikely(value & FERR_FAT_FBD_ERR_MASK)) {
errors = value & FERR_FAT_FBD_ERR_MASK ;
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;
goto error_fbd;
}
/* read in the 1st NON-FATAL error register */
pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map,
FERR_NF_FBD, &value);
if (unlikely(value & FERR_NF_FBD_ERR_MASK)) {
errors = value & FERR_NF_FBD_ERR_MASK;
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;
}
return;
error_fbd:
i7300_mc_printk(mci, KERN_EMERG, "%s FBD error on branch %d: %s\n",
is_fatal ? "Fatal" : "NOT fatal", branch, specific);
}
/*
* i7300_process_error_info Retrieve the hardware error information from
* the hardware and cache it in the 'info'
@ -347,6 +459,7 @@ static void i7300_process_error_info(struct mem_ctl_info *mci,
struct i7300_error_info *info)
{
i7300_process_error_global(mci, info);
i7300_process_fbd_error(mci, info);
};
/*
@ -381,6 +494,18 @@ static void i7300_check_error(struct mem_ctl_info *mci)
*/
static void i7300_enable_error_reporting(struct mem_ctl_info *mci)
{
struct i7300_pvt *pvt = mci->pvt_info;
u32 fbd_error_mask;
/* Read the FBD Error Mask Register */
pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map,
EMASK_FBD, &fbd_error_mask);
/* Enable with a '0' */
fbd_error_mask &= ~(EMASK_FBD_ERR_MASK);
pci_write_config_dword(pvt->pci_dev_16_1_fsb_addr_map,
EMASK_FBD, fbd_error_mask);
}
/************************************************