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* [PATCH] platform/x86: thinkpad_acpi: Add missing T14s Gen1 type to s2idle quirk list
@ 2023-03-31 23:24 Benjamin Asbach
  2023-04-03 10:02 ` Hans de Goede
  2023-04-03 10:03 ` Hans de Goede
  0 siblings, 2 replies; 6+ messages in thread
From: Benjamin Asbach @ 2023-03-31 23:24 UTC (permalink / raw)
  Cc: Mario Limonciello, Mark Pearson, Benjamin Asbach,
	Henrique de Moraes Holschuh, Hans de Goede, Mark Gross,
	ibm-acpi-devel, platform-driver-x86, linux-kernel

> Lenovo laptops that contain NVME SSDs across a variety of generations have
> trouble resuming from suspend to idle when the IOMMU translation layer is
> active for the NVME storage device.
>
> This generally manifests as a large resume delay or page faults. These
> delays and page faults occur as a result of a Lenovo BIOS specific SMI
> that runs during the D3->D0 transition on NVME devices.

Link: https://lore.kernel.org/all/20220503183420.348-1-mario.limonciello@amd.com/

As Lenovo distributes T14s Gen1 laptops with different product names
a missing one is added by this patch.

Note: Based on lenovo support page there might be some more variants which
are not represented in s2idle quirk list.

Signed-off-by: Benjamin Asbach <asbachb.kernel@impl.it>
Tested-by: Benjamin Asbach <asbachb.kernel@impl.it>

Link: https://bbs.archlinux.org/viewtopic.php?pid=2084655#p2084655
---
 drivers/platform/x86/thinkpad_acpi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 32c10457399e..57428d7a392d 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -4478,6 +4478,15 @@ static const struct dmi_system_id fwbug_list[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "20UH"),
 		}
 	},
+	{
+		.ident = "T14s Gen1 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20UJ"),
+		}
+	},
+
 	{
 		.ident = "P14s Gen1 AMD",
 		.driver_data = &quirk_s2idle_bug,
-- 
2.40.0


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2023-04-03 15:15 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-03-31 23:24 [PATCH] platform/x86: thinkpad_acpi: Add missing T14s Gen1 type to s2idle quirk list Benjamin Asbach
2023-04-03 10:02 ` Hans de Goede
2023-04-03 10:03 ` Hans de Goede
2023-04-03 10:46   ` Benjamin Asbach
2023-04-03 14:41   ` Mark Pearson
2023-04-03 15:14     ` Hans de Goede

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