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| author | Arvind R <arvino55@gmail.com> | 2011-10-12 10:28:56 +0530 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2011-10-29 21:29:42 +0200 |
| commit | 6099e419ae7e1dd44c808693bd1905d22a6db15f (patch) | |
| tree | 561c8433a6a9bc2b24bd32e8063edfb49ff63453 /drivers/edac/i82975x_edac.c | |
| parent | 800100afc7a01ed581702bfaa6014f646e6eff5d (diff) | |
| download | linux-stable-6099e419ae7e1dd44c808693bd1905d22a6db15f.tar.gz linux-stable-6099e419ae7e1dd44c808693bd1905d22a6db15f.tar.bz2 linux-stable-6099e419ae7e1dd44c808693bd1905d22a6db15f.zip | |
edac:i82975x fix 32bit compile and cleanup
the clean up achieves:
1. fix warning on 32-bit compile
2. reorder info extraction for clarity
3. add error-trap diagnostic message
4. handle ALL modes of memory configurations
Signed-off-by: Arvind R. <arvino55@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/edac/i82975x_edac.c')
| -rw-r--r-- | drivers/edac/i82975x_edac.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/edac/i82975x_edac.c b/drivers/edac/i82975x_edac.c index a5da732fe5b2..4184e0171f00 100644 --- a/drivers/edac/i82975x_edac.c +++ b/drivers/edac/i82975x_edac.c @@ -277,11 +277,9 @@ static void i82975x_get_error_info(struct mem_ctl_info *mci, static int i82975x_process_error_info(struct mem_ctl_info *mci, struct i82975x_error_info *info, int handle_errors) { - int row, multi_chan, chan; + int row, chan; unsigned long offst, page; - multi_chan = mci->csrows[0].nr_channels - 1; - if (!(info->errsts2 & 0x0003)) return 0; @@ -294,20 +292,30 @@ static int i82975x_process_error_info(struct mem_ctl_info *mci, } page = (unsigned long) info->eap; - if (info->xeap & 1) - page |= 0x100000000ul; - chan = page & 1; page >>= 1; - offst = page & ((1 << PAGE_SHIFT) - 1); - page >>= PAGE_SHIFT; + if (info->xeap & 1) + page |= 0x80000000; + page >>= (PAGE_SHIFT - 1); row = edac_mc_find_csrow_by_page(mci, page); + if (row == -1) { + i82975x_mc_printk(mci, KERN_ERR, "error processing EAP:\n" + "\tXEAP=%u\n" + "\t EAP=0x%08x\n" + "\tPAGE=0x%08x\n", + (info->xeap & 1) ? 1 : 0, info->eap, (unsigned int) page); + return 0; + } + chan = (mci->csrows[row].nr_channels == 1) ? 0 : info->eap & 1; + offst = info->eap + & ((1 << PAGE_SHIFT) - + (1 << mci->csrows[row].grain)); + if (info->errsts & 0x0002) edac_mc_handle_ue(mci, page, offst , row, "i82975x UE"); else edac_mc_handle_ce(mci, page, offst, info->derrsyn, row, - multi_chan ? chan : 0, - "i82975x CE"); + chan, "i82975x CE"); return 1; } @@ -410,7 +418,7 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci, csrow->last_page = cumul_size - 1; csrow->nr_pages = cumul_size - last_cumul_size; last_cumul_size = cumul_size; - csrow->grain = 1 << 6; /* I82975X_EAP has 64B resolution */ + csrow->grain = 1 << 7; /* 128Byte cache-line resolution */ csrow->mtype = MEM_DDR2; /* I82975x supports only DDR2 */ csrow->dtype = i82975x_dram_type(mch_window, index); csrow->edac_mode = EDAC_SECDED; /* only supported */ |