Quelle  pmc-quirks.c   Sprache: C

// 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 <mario.limonciello@amd.com>
 */

#include <linux/dmi.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/platform_data/x86/amd-fch.h>

#include "pmc.h"

struct quirk_entry {
 u32 s2idle_bug_mmio;
 bool spurious_8042;
};

static struct quirk_entry quirk_s2idle_bug = {
 .s2idle_bug_mmio = FCH_PM_BASE + FCH_PM_SCRATCH,
};

static struct quirk_entry quirk_spurious_8042 = {
 .spurious_8042 = true,
};

static struct quirk_entry quirk_s2idle_spurious_8042 = {
 .s2idle_bug_mmio = FCH_PM_BASE + FCH_PM_SCRATCH,
 .spurious_8042 = true,
};

static const struct dmi_system_id fwbug_list[] = {
 {
  .ident = "L14 Gen2 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20X5"),
  }
 },
 {
  .ident = "T14s Gen2 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20XF"),
  }
 },
 {
  .ident = "X13 Gen2 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20XH"),
  }
 },
 {
  .ident = "T14 Gen2 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20XK"),
  }
 },
 {
  .ident = "T14 Gen1 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20UD"),
  }
 },
 {
  .ident = "T14 Gen1 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20UE"),
  }
 },
 {
  .ident = "T14s Gen1 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20UH"),
  }
 },
 {
  .ident = "T14s Gen1 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20UJ"),
  }
 },
 {
  .ident = "P14s Gen1 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "20Y1"),
  }
 },
 {
  .ident = "P14s Gen2 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "21A0"),
  }
 },
 {
  .ident = "P14s Gen2 AMD",
  .driver_data = &quirk_s2idle_spurious_8042,
  .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_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "82VF"),
  }
 },
 {
  .ident = "IdeaPad 1 15AMN7",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "82VG"),
  }
 },
 {
  .ident = "IdeaPad 1 15AMN7",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "82X5"),
  }
 },
 {
  .ident = "IdeaPad Slim 3 14AMN8",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "82XN"),
  }
 },
 {
  .ident = "IdeaPad Slim 3 15AMN8",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "82XQ"),
  }
 },
 /* https://gitlab.freedesktop.org/drm/amd/-/issues/4434 */
 {
  .ident = "Lenovo Yoga 6 13ALC6",
  .driver_data = &quirk_s2idle_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "82ND"),
  }
 },
 /* https://gitlab.freedesktop.org/drm/amd/-/issues/2684 */
 {
  .ident = "HP Laptop 15s-eq2xxx",
  .driver_data = &quirk_s2idle_spurious_8042,
  .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"),
  }
 },
 {
  .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, "03.05"),
  }
 },
 {
  .ident = "MECHREVO Wujie 14X (GX4HRXL)",
  .driver_data = &quirk_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_NAME, "WUJIE14-GX4HRXL"),
  }
 },
 {
  .ident = "MECHREVO Yilong15Pro Series GM5HG7A",
  .driver_data = &quirk_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_SYS_VENDOR, "MECHREVO"),
   DMI_MATCH(DMI_PRODUCT_NAME, "Yilong15Pro Series GM5HG7A"),
  }
 },
 /* https://bugzilla.kernel.org/show_bug.cgi?id=220116 */
 {
  .ident = "PCSpecialist Lafite Pro V 14M",
  .driver_data = &quirk_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_SYS_VENDOR, "PCSpecialist"),
   DMI_MATCH(DMI_PRODUCT_NAME, "Lafite Pro V 14M"),
  }
 },
 {
  .ident = "TUXEDO Stellaris Slim 15 AMD Gen6",
  .driver_data = &quirk_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_NAME, "GMxHGxx"),
  }
 },
 {
  .ident = "TUXEDO InfinityBook Pro 14/15 AMD Gen10",
  .driver_data = &quirk_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_NAME, "XxHP4NAx"),
  }
 },
 {
  .ident = "TUXEDO InfinityBook Pro 14/15 AMD Gen10",
  .driver_data = &quirk_spurious_8042,
  .matches = {
   DMI_MATCH(DMI_BOARD_NAME, "XxKK4NAx_XxSP4NAx"),
  }
 },
 {}
};

/*
 * 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;

 /*
 * IRQ1 may cause an interrupt during resume even without a keyboard
 * press.
 *
 * Affects Renoir, Cezanne and Barcelo SoCs
 *
 * A solution is available in PMFW 64.66.0, but it must be activated by
 * SBIOS. If SBIOS is known to have the fix a quirk can be added for
 * a given system to avoid workaround.
 */
 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);
 dev->disable_8042_wakeup = dev->quirks->spurious_8042;
}