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sb_edac: isolate TOHM retrieval 

This is preparation of Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Aristeu Rozanski 2013-10-30 13:26:59 -03:00 committed by Mauro Carvalho Chehab
parent 5f8a1b8a7b
commit 8fd6a43ac9
1 changed files with 11 additions and 3 deletions
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14
drivers/edac/sb_edac.c
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@ -278,6 +278,7 @@ struct sbridge_info {
u32 mcmtr;
u32 rankcfgr;
u64 (*get_tolm)(struct sbridge_pvt *pvt);
u64 (*get_tohm)(struct sbridge_pvt *pvt);
};
struct sbridge_channel {
@ -470,6 +471,14 @@ static u64 sbridge_get_tolm(struct sbridge_pvt *pvt)
return GET_TOLM(reg);
}
static u64 sbridge_get_tohm(struct sbridge_pvt *pvt)
{
u32 reg;
pci_read_config_dword(pvt->pci_sad1, TOHM, &reg);
return GET_TOHM(reg);
}
/****************************************************************************
Memory check routines
****************************************************************************/
@ -651,9 +660,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n", mb, kb, (u64)pvt->tolm);
/* Address range is already 45:25 */
pci_read_config_dword(pvt->pci_sad1, TOHM,
&reg);
pvt->tohm = GET_TOHM(reg);
pvt->tohm = pvt->info.get_tohm(pvt);
tmp_mb = (1 + pvt->tohm) >> 20;
mb = div_u64_rem(tmp_mb, 1000, &kb);
@ -1670,6 +1677,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
mci->dev_name = pci_name(sbridge_dev->pdev[0]);
mci->ctl_page_to_phys = NULL;
pvt->info.get_tolm = sbridge_get_tolm;
pvt->info.get_tohm = sbridge_get_tohm;
/* Set the function pointer to an actual operation function */
mci->edac_check = sbridge_check_error;