From: Muralidhara M K <muralidhara.mk@amd.com>
Date: Fri, 27 Jan 2023 17:04:09 +0000
Subject: EDAC/amd64: Split prep_chip_selects() into dct/umc functions
Git-commit: 637f60ef2cc7c015c2e065503f8da89272ab208d
Patch-mainline: v6.4-rc1
References: jsc#PED-7615
Call them from their respective hw_info_get() function. Avoid the
need for family/model-based function pointers.
Add the calls before reading hardware registers from the memory
controllers, since the number of chip select bases and masks needs to be
known first.
[ Yazen: rebased/reworked patch and reworded commit message. ]
Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com>
Co-developed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Co-developed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230127170419.1824692-13-yazen.ghannam@amd.com
Acked-by: Nikolay Borisov <nik.borisov@suse.com>
---
drivers/edac/amd64_edac.c | 24 +++++++++++++-----------
1 file changed, 13 insertions(+), 11 deletions(-)
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index d2a9793c097e..0ba63c93f8f4 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1614,7 +1614,7 @@ static void dump_misc_regs(struct amd64_pvt *pvt)
/*
* See BKDG, F2x[1,0][5C:40], F2[1,0][6C:60]
*/
-static void prep_chip_selects(struct amd64_pvt *pvt)
+static void dct_prep_chip_selects(struct amd64_pvt *pvt)
{
if (pvt->fam == 0xf && pvt->ext_model < K8_REV_F) {
pvt->csels[0].b_cnt = pvt->csels[1].b_cnt = 8;
@@ -1622,20 +1622,22 @@ static void prep_chip_selects(struct amd64_pvt *pvt)
} else if (pvt->fam == 0x15 && pvt->model == 0x30) {
pvt->csels[0].b_cnt = pvt->csels[1].b_cnt = 4;
pvt->csels[0].m_cnt = pvt->csels[1].m_cnt = 2;
- } else if (pvt->fam >= 0x17) {
- int umc;
-
- for_each_umc(umc) {
- pvt->csels[umc].b_cnt = 4;
- pvt->csels[umc].m_cnt = pvt->flags.zn_regs_v2 ? 4 : 2;
- }
-
} else {
pvt->csels[0].b_cnt = pvt->csels[1].b_cnt = 8;
pvt->csels[0].m_cnt = pvt->csels[1].m_cnt = 4;
}
}
+static void umc_prep_chip_selects(struct amd64_pvt *pvt)
+{
+ int umc;
+
+ for_each_umc(umc) {
+ pvt->csels[umc].b_cnt = 4;
+ pvt->csels[umc].m_cnt = pvt->flags.zn_regs_v2 ? 4 : 2;
+ }
+}
+
static void read_umc_base_mask(struct amd64_pvt *pvt)
{
u32 umc_base_reg, umc_base_reg_sec;
@@ -1694,8 +1696,6 @@ static void read_dct_base_mask(struct amd64_pvt *pvt)
{
int cs;
- prep_chip_selects(pvt);
-
if (pvt->umc)
return read_umc_base_mask(pvt);
@@ -3665,6 +3665,7 @@ static int dct_hw_info_get(struct amd64_pvt *pvt)
if (ret)
return ret;
+ dct_prep_chip_selects(pvt);
read_mc_regs(pvt);
return 0;
@@ -3676,6 +3677,7 @@ static int umc_hw_info_get(struct amd64_pvt *pvt)
if (!pvt->umc)
return -ENOMEM;
+ umc_prep_chip_selects(pvt);
read_mc_regs(pvt);
return 0;