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EDAC/amd64: Drop some family checks for newer systems 

In general, "pvt->umc != NULL" is used to check if the system is Family
17h+. However, there are a few places that are using direct family
checks.

Replace the remaining family checks with a check for "pvt->umc != NULL".

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200110015651.14887-6-Yazen.Ghannam@amd.com
This commit is contained in:
Yazen Ghannam 2020-01-10 01:56:51 +00:00 committed by Borislav Petkov
parent 2eb61c91c3
commit dcd01394ce
1 changed files with 19 additions and 26 deletions
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45
drivers/edac/amd64_edac.c
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@ -214,7 +214,7 @@ static int __set_scrub_rate(struct amd64_pvt *pvt, u32 new_bw, u32 min_rate)
scrubval = scrubrates[i].scrubval;
if (pvt->fam == 0x17 || pvt->fam == 0x18) {
if (pvt->umc) {
__f17h_set_scrubval(pvt, scrubval);
} else if (pvt->fam == 0x15 && pvt->model == 0x60) {
f15h_select_dct(pvt, 0);
@ -256,18 +256,7 @@ static int get_scrub_rate(struct mem_ctl_info *mci)
int i, retval = -EINVAL;
u32 scrubval = 0;
switch (pvt->fam) {
case 0x15:
/* Erratum #505 */
if (pvt->model < 0x10)
f15h_select_dct(pvt, 0);
if (pvt->model == 0x60)
amd64_read_pci_cfg(pvt->F2, F15H_M60H_SCRCTRL, &scrubval);
break;
case 0x17:
case 0x18:
if (pvt->umc) {
amd64_read_pci_cfg(pvt->F6, F17H_SCR_BASE_ADDR, &scrubval);
if (scrubval & BIT(0)) {
amd64_read_pci_cfg(pvt->F6, F17H_SCR_LIMIT_ADDR, &scrubval);
@ -276,11 +265,15 @@ static int get_scrub_rate(struct mem_ctl_info *mci)
} else {
scrubval = 0;
}
break;
} else if (pvt->fam == 0x15) {
/* Erratum #505 */
if (pvt->model < 0x10)
f15h_select_dct(pvt, 0);
default:
if (pvt->model == 0x60)
amd64_read_pci_cfg(pvt->F2, F15H_M60H_SCRCTRL, &scrubval);
} else {
amd64_read_pci_cfg(pvt->F3, SCRCTRL, &scrubval);
break;
}
scrubval = scrubval & 0x001F;
@ -1055,6 +1048,16 @@ static void determine_memory_type(struct amd64_pvt *pvt)
{
u32 dram_ctrl, dcsm;
if (pvt->umc) {
if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(5))
pvt->dram_type = MEM_LRDDR4;
else if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(4))
pvt->dram_type = MEM_RDDR4;
else
pvt->dram_type = MEM_DDR4;
return;
}
switch (pvt->fam) {
case 0xf:
if (pvt->ext_model >= K8_REV_F)
@ -1100,16 +1103,6 @@ static void determine_memory_type(struct amd64_pvt *pvt)
case 0x16:
goto ddr3;
case 0x17:
case 0x18:
if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(5))
pvt->dram_type = MEM_LRDDR4;
else if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(4))
pvt->dram_type = MEM_RDDR4;
else
pvt->dram_type = MEM_DDR4;
return;
default:
WARN(1, KERN_ERR "%s: Family??? 0x%x\n", __func__, pvt->fam);
pvt->dram_type = MEM_EMPTY;