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i7300_edac: Adds detection for enhanced scrub mode on x8 

While here, do some cleanup by adding some macros to check
for device features.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2010-08-27 08:56:48 -03:00
parent 86002324cf
commit d7de2bdb0e
1 changed files with 17 additions and 4 deletions
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21
drivers/edac/i7300_edac.c
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@ -93,6 +93,12 @@
/* OFFSETS for Function 1 */
#define MC_SETTINGS 0x40
#define IS_MIRRORED(mc) ((mc) & (1 << 16))
#define IS_ECC_ENABLED(mc) ((mc) & (1 << 5))
#define IS_RETRY_ENABLED(mc) ((mc) & (1 << 31))
#define IS_SCRBALGO_ENHANCED(mc) ((mc) & (1 << 8))
#define TOLM 0x6C
#define REDMEMB 0x7C
@ -451,9 +457,13 @@ static int decode_mtr(struct i7300_pvt *pvt,
p_csrow->edac_mode = EDAC_S8ECD8ED;
/* ask what device type on this row */
if (MTR_DRAM_WIDTH(mtr))
if (MTR_DRAM_WIDTH(mtr)) {
debugf0("Scrub algorithm for x8 is on %s mode\n",
IS_SCRBALGO_ENHANCED(pvt->mc_settings) ?
"enhanced" : "normal");
p_csrow->dtype = DEV_X8;
else
} else
p_csrow->dtype = DEV_X4;
return mtr;
@ -643,10 +653,13 @@ static int i7300_get_mc_regs(struct mem_ctl_info *mci)
/* Get memory controller settings */
pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map, MC_SETTINGS,
&pvt->mc_settings);
debugf0("Memory controller operating on %s mode\n",
pvt->mc_settings & (1 << 16)? "mirrored" : "non-mirrored");
IS_MIRRORED(pvt->mc_settings) ? "mirrored" : "non-mirrored");
debugf0("Error detection is %s\n",
pvt->mc_settings & (1 << 5)? "enabled" : "disabled");
IS_ECC_ENABLED(pvt->mc_settings) ? "enabled" : "disabled");
debugf0("Retry is %s\n",
IS_RETRY_ENABLED(pvt->mc_settings) ? "enabled" : "disabled");
/* Get Memory Interleave Range registers */
pci_read_config_word(pvt->pci_dev_16_1_fsb_addr_map, MIR0, &pvt->mir[0]);