1 files changed, 265 insertions, 0 deletions
diff --git a/drivers/platform/x86/amd/pmc/pmc-quirks.c b/drivers/platform/x86/amd/pmc/pmc-quirks.c
new file mode 100644
index 000000000000..b456370166b6
--- /dev/null
+++ b/drivers/platform/x86/amd/pmc/pmc-quirks.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * AMD SoC Power Management Controller Driver Quirks
+ *
+ * Copyright (c) 2023, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Mario Limonciello <[email protected]>
+ */
+
+#include <linux/dmi.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+
+#include "pmc.h"
+
+struct quirk_entry {
+	u32 s2idle_bug_mmio;
+	bool spurious_8042;
+};
+
+static struct quirk_entry quirk_s2idle_bug = {
+	.s2idle_bug_mmio = 0xfed80380,
+};
+
+static struct quirk_entry quirk_spurious_8042 = {
+	.spurious_8042 = true,
+};
+
+static const struct dmi_system_id fwbug_list[] = {
+	{
+		.ident = "L14 Gen2 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20X5"),
+		}
+	},
+	{
+		.ident = "T14s Gen2 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20XF"),
+		}
+	},
+	{
+		.ident = "X13 Gen2 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20XH"),
+		}
+	},
+	{
+		.ident = "T14 Gen2 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20XK"),
+		}
+	},
+	{
+		.ident = "T14 Gen1 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20UD"),
+		}
+	},
+	{
+		.ident = "T14 Gen1 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20UE"),
+		}
+	},
+	{
+		.ident = "T14s Gen1 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			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,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20Y1"),
+		}
+	},
+	{
+		.ident = "P14s Gen2 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "21A0"),
+		}
+	},
+	{
+		.ident = "P14s Gen2 AMD",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "21A1"),
+		}
+	},
+	/* https://bugzilla.kernel.org/show_bug.cgi?id=218024 */
+	{
+		.ident = "V14 G4 AMN",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82YT"),
+		}
+	},
+	{
+		.ident = "V14 G4 AMN",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "83GE"),
+		}
+	},
+	{
+		.ident = "V15 G4 AMN",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82YU"),
+		}
+	},
+	{
+		.ident = "V15 G4 AMN",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "83CQ"),
+		}
+	},
+	{
+		.ident = "IdeaPad 1 14AMN7",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82VF"),
+		}
+	},
+	{
+		.ident = "IdeaPad 1 15AMN7",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82VG"),
+		}
+	},
+	{
+		.ident = "IdeaPad 1 15AMN7",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82X5"),
+		}
+	},
+	{
+		.ident = "IdeaPad Slim 3 14AMN8",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82XN"),
+		}
+	},
+	{
+		.ident = "IdeaPad Slim 3 15AMN8",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82XQ"),
+		}
+	},
+	/* https://gitlab.freedesktop.org/drm/amd/-/issues/2684 */
+	{
+		.ident = "HP Laptop 15s-eq2xxx",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "HP Laptop 15s-eq2xxx"),
+		}
+	},
+	/* https://community.frame.work/t/tracking-framework-amd-ryzen-7040-series-lid-wakeup-behavior-feedback/39128 */
+	{
+		.ident = "Framework Laptop 13 (Phoenix)",
+		.driver_data = &quirk_spurious_8042,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Framework"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Laptop 13 (AMD Ryzen 7040Series)"),
+			DMI_MATCH(DMI_BIOS_VERSION, "03.03"),
+		}
+	},
+	{}
+};
+
+/*
+ * Laptops that run a SMI handler during the D3->D0 transition that occurs
+ * specifically when exiting suspend to idle which can cause
+ * large delays during resume when the IOMMU translation layer is enabled (the default
+ * behavior) for NVME devices:
+ *
+ * To avoid this firmware problem, skip the SMI handler on these machines before the
+ * D0 transition occurs.
+ */
+static void amd_pmc_skip_nvme_smi_handler(u32 s2idle_bug_mmio)
+{
+	void __iomem *addr;
+	u8 val;
+
+	if (!request_mem_region_muxed(s2idle_bug_mmio, 1, "amd_pmc_pm80"))
+		return;
+
+	addr = ioremap(s2idle_bug_mmio, 1);
+	if (!addr)
+		goto cleanup_resource;
+
+	val = ioread8(addr);
+	iowrite8(val & ~BIT(0), addr);
+
+	iounmap(addr);
+cleanup_resource:
+	release_mem_region(s2idle_bug_mmio, 1);
+}
+
+void amd_pmc_process_restore_quirks(struct amd_pmc_dev *dev)
+{
+	if (dev->quirks && dev->quirks->s2idle_bug_mmio)
+		amd_pmc_skip_nvme_smi_handler(dev->quirks->s2idle_bug_mmio);
+}
+
+void amd_pmc_quirks_init(struct amd_pmc_dev *dev)
+{
+	const struct dmi_system_id *dmi_id;
+
+	if (dev->cpu_id == AMD_CPU_ID_CZN)
+		dev->disable_8042_wakeup = true;
+
+	dmi_id = dmi_first_match(fwbug_list);
+	if (!dmi_id)
+		return;
+	dev->quirks = dmi_id->driver_data;
+	if (dev->quirks->s2idle_bug_mmio)
+		pr_info("Using s2idle quirk to avoid %s platform firmware bug\n",
+			dmi_id->ident);
+	if (dev->quirks->spurious_8042)
+		dev->disable_8042_wakeup = true;
+}