linux-kernel - [PATCH V1] mmc: sdhci-pci-gli: GL9763e: Mask the replay timer timeout of AER

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20250716104334.44020-1-victorshihgli@gmail.com>
Date: Wed, 16 Jul 2025 18:43:34 +0800
From: Victor Shih <victorshihgli@...il.com>
To: ulf.hansson@...aro.org,
	adrian.hunter@...el.com
Cc: linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	benchuanggli@...il.com,
	ben.chuang@...esyslogic.com.tw,
	HL.Liu@...esyslogic.com.tw,
	Victor Shih <victorshihgli@...il.com>,
	Victor Shih <victor.shih@...esyslogic.com.tw>
Subject: [PATCH V1] mmc: sdhci-pci-gli: GL9763e: Mask the replay timer timeout of AER

From: Victor Shih <victor.shih@...esyslogic.com.tw>

Due to a flaw in the hardware design, the GL9763e replay timer frequently
times out when ASPM is enabled. As a result, the warning messages will
often appear in the system log when the system accesses the GL9763e
PCI config. Therefore, the replay timer timeout must be masked.

Signed-off-by: Victor Shih <victor.shih@...esyslogic.com.tw>
---
 drivers/mmc/host/sdhci-pci-gli.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
index 4c2ae71770f7..eb3954729a3c 100644
--- a/drivers/mmc/host/sdhci-pci-gli.c
+++ b/drivers/mmc/host/sdhci-pci-gli.c
@@ -1754,6 +1754,7 @@ static int gl9763e_add_host(struct sdhci_pci_slot *slot)
 static void gli_set_gl9763e(struct sdhci_pci_slot *slot)
 {
 	struct pci_dev *pdev = slot->chip->pdev;
+	int aer;
 	u32 value;
 
 	pci_read_config_dword(pdev, PCIE_GLI_9763E_VHS, &value);
@@ -1780,6 +1781,14 @@ static void gli_set_gl9763e(struct sdhci_pci_slot *slot)
 	value |= FIELD_PREP(GLI_9763E_HS400_RXDLY, GLI_9763E_HS400_RXDLY_5);
 	pci_write_config_dword(pdev, PCIE_GLI_9763E_CLKRXDLY, value);
 
+	/* mask the replay timer timeout of AER */
+	aer = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
+	if (aer) {
+		pci_read_config_dword(pdev, aer + PCI_ERR_COR_MASK, &value);
+		value |= PCI_ERR_COR_REP_TIMER;
+		pci_write_config_dword(pdev, aer + PCI_ERR_COR_MASK, value);
+	}
+
 	pci_read_config_dword(pdev, PCIE_GLI_9763E_VHS, &value);
 	value &= ~GLI_9763E_VHS_REV;
 	value |= FIELD_PREP(GLI_9763E_VHS_REV, GLI_9763E_VHS_REV_R);
-- 
2.43.0