linux-kernel - [PATCH v2 17/22] EDAC/amd64: Split setup_mci_misc

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Message-ID: <20230127170419.1824692-18-yazen.ghannam@amd.com>
Date:   Fri, 27 Jan 2023 17:04:14 +0000
From:   Yazen Ghannam <yazen.ghannam@....com>
To:     <bp@...en8.de>, <linux-edac@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>, <muralidhara.mk@....com>,
        <naveenkrishna.chatradhi@....com>,
        Yazen Ghannam <yazen.ghannam@....com>
Subject: [PATCH v2 17/22] EDAC/amd64: Split setup_mci_misc_attrs() into dct/umc functions

From: Muralidhara M K <muralidhara.mk@....com>

The init_one_instance() path is shared between legacy and modern
systems. So add the new functions to a function pointer in pvt->ops.

No functional change is intended.

Signed-off-by: Muralidhara M K <muralidhara.mk@....com>
Co-developed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@....com>
Signed-off-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@....com>
[Rebased/reworked patch and reworded commit message]
Co-developed-by: Yazen Ghannam <yazen.ghannam@....com>
Signed-off-by: Yazen Ghannam <yazen.ghannam@....com>
---
Link:
https://lore.kernel.org/r/20220509145534.44912-15-yazen.ghannam@amd.com

v1->v2:
* Split function instead of just defining function pointer.

 drivers/edac/amd64_edac.c | 37 ++++++++++++++++++++++++-------------
 drivers/edac/amd64_edac.h |  1 +
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index ecffe2f1ea9a..f9254d8da5a3 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3616,22 +3616,18 @@ f17h_determine_edac_ctl_cap(struct mem_ctl_info *mci, struct amd64_pvt *pvt)
 	}
 }
 
-static void setup_mci_misc_attrs(struct mem_ctl_info *mci)
+static void dct_setup_mci_misc_attrs(struct mem_ctl_info *mci)
 {
 	struct amd64_pvt *pvt = mci->pvt_info;
 
 	mci->mtype_cap		= MEM_FLAG_DDR2 | MEM_FLAG_RDDR2;
 	mci->edac_ctl_cap	= EDAC_FLAG_NONE;
 
-	if (pvt->umc) {
-		f17h_determine_edac_ctl_cap(mci, pvt);
-	} else {
-		if (pvt->nbcap & NBCAP_SECDED)
-			mci->edac_ctl_cap |= EDAC_FLAG_SECDED;
+	if (pvt->nbcap & NBCAP_SECDED)
+		mci->edac_ctl_cap |= EDAC_FLAG_SECDED;
 
-		if (pvt->nbcap & NBCAP_CHIPKILL)
-			mci->edac_ctl_cap |= EDAC_FLAG_S4ECD4ED;
-	}
+	if (pvt->nbcap & NBCAP_CHIPKILL)
+		mci->edac_ctl_cap |= EDAC_FLAG_S4ECD4ED;
 
 	mci->edac_cap		= determine_edac_cap(pvt);
 	mci->mod_name		= EDAC_MOD_STR;
@@ -3639,14 +3635,27 @@ static void setup_mci_misc_attrs(struct mem_ctl_info *mci)
 	mci->dev_name		= pci_name(pvt->F3);
 	mci->ctl_page_to_phys	= NULL;
 
-	if (pvt->fam >= 0x17)
-		return;
-
 	/* memory scrubber interface */
 	mci->set_sdram_scrub_rate = set_scrub_rate;
 	mci->get_sdram_scrub_rate = get_scrub_rate;
 }
 
+static void umc_setup_mci_misc_attrs(struct mem_ctl_info *mci)
+{
+	struct amd64_pvt *pvt = mci->pvt_info;
+
+	mci->mtype_cap		= MEM_FLAG_DDR4 | MEM_FLAG_RDDR4;
+	mci->edac_ctl_cap	= EDAC_FLAG_NONE;
+
+	f17h_determine_edac_ctl_cap(mci, pvt);
+
+	mci->edac_cap		= determine_edac_cap(pvt);
+	mci->mod_name		= EDAC_MOD_STR;
+	mci->ctl_name		= pvt->ctl_name;
+	mci->dev_name		= pci_name(pvt->F3);
+	mci->ctl_page_to_phys	= NULL;
+}
+
 static int dct_hw_info_get(struct amd64_pvt *pvt)
 {
 	int ret = reserve_mc_sibling_devs(pvt, pvt->f1_id, pvt->f2_id);
@@ -3686,6 +3695,7 @@ static void hw_info_put(struct amd64_pvt *pvt)
 static struct low_ops umc_ops = {
 	.hw_info_get			= umc_hw_info_get,
 	.ecc_enabled			= umc_ecc_enabled,
+	.setup_mci_misc_attrs		= umc_setup_mci_misc_attrs,
 };
 
 /* Use Family 16h versions for defaults and adjust as needed below. */
@@ -3694,6 +3704,7 @@ static struct low_ops dct_ops = {
 	.dbam_to_cs			= f16_dbam_to_chip_select,
 	.hw_info_get			= dct_hw_info_get,
 	.ecc_enabled			= dct_ecc_enabled,
+	.setup_mci_misc_attrs		= dct_setup_mci_misc_attrs,
 };
 
 static int per_family_init(struct amd64_pvt *pvt)
@@ -3856,7 +3867,7 @@ static int init_one_instance(struct amd64_pvt *pvt)
 	mci->pvt_info = pvt;
 	mci->pdev = &pvt->F3->dev;
 
-	setup_mci_misc_attrs(mci);
+	pvt->ops->setup_mci_misc_attrs(mci);
 
 	if (init_csrows(mci))
 		mci->edac_cap = EDAC_FLAG_NONE;
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 103cd38a6302..1fb39d7981a2 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -468,6 +468,7 @@ struct low_ops {
 			   unsigned int cs_mode, int cs_mask_nr);
 	int (*hw_info_get)(struct amd64_pvt *pvt);
 	bool (*ecc_enabled)(struct amd64_pvt *pvt);
+	void (*setup_mci_misc_attrs)(struct mem_ctl_info *mci);
 };
 
 int __amd64_read_pci_cfg_dword(struct pci_dev *pdev, int offset,
-- 
2.25.1