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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-27 13:56:48 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-30 19:56:50 +0200 |
| commit | d7de2bdb0e15c594aefbc71d899c4684a5ce6559 (patch) | |
| tree | d83813daa216c3bcc3069ff378420883f18bf9a3 /drivers/edac | |
| parent | i7300_edac: Clear the error bit after reading (diff) | |
| download | linux-d7de2bdb0e15c594aefbc71d899c4684a5ce6559.tar.xz linux-d7de2bdb0e15c594aefbc71d899c4684a5ce6559.zip | |
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>
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/i7300_edac.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c index f2f171d0356a..27088af79672 100644 --- a/drivers/edac/i7300_edac.c +++ b/drivers/edac/i7300_edac.c @@ -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]); |