linux-kernel - [PATCH 2/3] EDAC/igen6: Add Intel Wildcat Lake SoCs support

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Message-ID: <20250704151609.7833-3-qiuxu.zhuo@intel.com>
Date: Fri,  4 Jul 2025 23:16:08 +0800
From: Qiuxu Zhuo <qiuxu.zhuo@...el.com>
To: Tony Luck <tony.luck@...el.com>,
	Borislav Petkov <bp@...en8.de>
Cc: Lili Li <lili.li@...el.com>,
	Qiuxu Zhuo <qiuxu.zhuo@...el.com>,
	James Morse <james.morse@....com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Robert Richter <rric@...nel.org>,
	Laurens SEGHERS <laurens@...e.com>,
	VikasX Chougule <vikasx.chougule@...el.com>,
	linux-edac@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] EDAC/igen6: Add Intel Wildcat Lake SoCs support

From: Lili Li <lili.li@...el.com>

Intel Wildcat Lake is a mobile derivative of Panther Lake with one
memory controller. Wildcat Lake SoCs share the same IBECC registers
with Meteor Lake-P SoCs.

Add a compute die ID and a new configuration structure for Wildcat
Lake SoCs with In-Band ECC capability for EDAC support.

Signed-off-by: Lili Li <lili.li@...el.com>
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@...el.com>
---
 drivers/edac/igen6_edac.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/edac/igen6_edac.c b/drivers/edac/igen6_edac.c
index 5ffe9579959f..2fc59f9eed69 100644
--- a/drivers/edac/igen6_edac.c
+++ b/drivers/edac/igen6_edac.c
@@ -275,6 +275,9 @@ static struct work_struct ecclog_work;
 #define DID_PTL_H_SKU2	0xb001
 #define DID_PTL_H_SKU3	0xb002
 
+/* Compute die IDs for Wildcat Lake with IBECC */
+#define DID_WCL_SKU1	0xfd00
+
 static int get_mchbar(struct pci_dev *pdev, u64 *mchbar)
 {
 	union  {
@@ -569,6 +572,17 @@ static struct res_config mtl_p_cfg = {
 	.err_addr_to_imc_addr	= adl_err_addr_to_imc_addr,
 };
 
+static struct res_config wcl_cfg = {
+	.machine_check		= true,
+	.num_imc		= 1,
+	.imc_base		= 0xd800,
+	.ibecc_base		= 0xd400,
+	.ibecc_error_log_offset	= 0x170,
+	.ibecc_available	= mtl_p_ibecc_available,
+	.err_addr_to_sys_addr	= adl_err_addr_to_sys_addr,
+	.err_addr_to_imc_addr	= adl_err_addr_to_imc_addr,
+};
+
 static struct pci_device_id igen6_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, DID_EHL_SKU5), (kernel_ulong_t)&ehl_cfg },
 	{ PCI_VDEVICE(INTEL, DID_EHL_SKU6), (kernel_ulong_t)&ehl_cfg },
@@ -622,6 +636,7 @@ static struct pci_device_id igen6_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, DID_PTL_H_SKU1), (kernel_ulong_t)&mtl_p_cfg },
 	{ PCI_VDEVICE(INTEL, DID_PTL_H_SKU2), (kernel_ulong_t)&mtl_p_cfg },
 	{ PCI_VDEVICE(INTEL, DID_PTL_H_SKU3), (kernel_ulong_t)&mtl_p_cfg },
+	{ PCI_VDEVICE(INTEL, DID_WCL_SKU1), (kernel_ulong_t)&wcl_cfg },
 	{ },
 };
 MODULE_DEVICE_TABLE(pci, igen6_pci_tbl);
-- 
2.43.0