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Subject[PATCH 05/12] sb_edac: isolate TOHM retrieval
Date
This is preparation of Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
---
drivers/edac/sb_edac.c | 14 +++++++++++---
1 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index eb6c9d4..fcd9c66 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -261,6 +261,7 @@ struct sbridge_info {
u32 mcmtr;
u32 rankcfgr;
u64 (*get_tolm)(struct sbridge_pvt *pvt);
+ u64 (*get_tohm)(struct sbridge_pvt *pvt);
};

struct sbridge_channel {
@@ -453,6 +454,14 @@ 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
****************************************************************************/
@@ -634,9 +643,7 @@ 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);
@@ -1653,6 +1660,7 @@ 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;
--
1.7.1


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