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sb_edac: allow different dram_rule arrays 

This is in preparation for 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 13:27:00 -03:00 committed by Mauro Carvalho Chehab
parent 8fd6a43ac9
commit 464f1d829a
1 changed files with 14 additions and 11 deletions
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17
drivers/edac/sb_edac.c
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@ -83,11 +83,10 @@ static int probed;
#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_ERR3 0x3c77 /* 16.7 */
/* Devices 12 Function 6, Offsets 0x80 to 0xcc */
static const u32 dram_rule[] = {
static const u32 sbridge_dram_rule[] = {
0x80, 0x88, 0x90, 0x98, 0xa0,
0xa8, 0xb0, 0xb8, 0xc0, 0xc8,
};
#define MAX_SAD ARRAY_SIZE(dram_rule)
#define SAD_LIMIT(reg) ((GET_BITFIELD(reg, 6, 25) << 26) | 0x3ffffff)
#define DRAM_ATTR(reg) GET_BITFIELD(reg, 2, 3)
@ -279,6 +278,8 @@ struct sbridge_info {
u32 rankcfgr;
u64 (*get_tolm)(struct sbridge_pvt *pvt);
u64 (*get_tohm)(struct sbridge_pvt *pvt);
const u32 *dram_rule;
u8 max_sad;
};
struct sbridge_channel {
@ -673,9 +674,9 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
* algorithm bellow.
*/
prv = 0;
for (n_sads = 0; n_sads < MAX_SAD; n_sads++) {
for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) {
/* SAD_LIMIT Address range is 45:26 */
pci_read_config_dword(pvt->pci_sad0, dram_rule[n_sads],
pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads],
&reg);
limit = SAD_LIMIT(reg);
@ -847,8 +848,8 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
/*
* Step 1) Get socket
*/
for (n_sads = 0; n_sads < MAX_SAD; n_sads++) {
pci_read_config_dword(pvt->pci_sad0, dram_rule[n_sads],
for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) {
pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads],
&reg);
if (!DRAM_RULE_ENABLE(reg))
@ -863,7 +864,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
break;
prv = limit;
}
if (n_sads == MAX_SAD) {
if (n_sads == pvt->info.max_sad) {
sprintf(msg, "Can't discover the memory socket");
return -EINVAL;
}
@ -1678,6 +1679,8 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
mci->ctl_page_to_phys = NULL;
pvt->info.get_tolm = sbridge_get_tolm;
pvt->info.get_tohm = sbridge_get_tohm;
pvt->info.dram_rule = sbridge_dram_rule;
pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule);
/* Set the function pointer to an actual operation function */
mci->edac_check = sbridge_check_error;