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162 lines
5.4 KiB
162 lines
5.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* X86 ACPI Utility Functions |
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* |
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* Copyright (C) 2017 Hans de Goede <[email protected]> |
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* |
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* Based on various non upstream patches to support the CHT Whiskey Cove PMIC: |
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* Copyright (C) 2013-2015 Intel Corporation. All rights reserved. |
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*/ |
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#include <linux/acpi.h> |
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#include <linux/dmi.h> |
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#include <asm/cpu_device_id.h> |
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#include <asm/intel-family.h> |
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#include "../internal.h" |
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/* |
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* Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because |
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* some recent Windows drivers bind to one device but poke at multiple |
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* devices at the same time, so the others get hidden. |
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* |
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* Some BIOS-es (temporarily) hide specific APCI devices to work around Windows |
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* driver bugs. We use DMI matching to match known cases of this. |
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* |
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* We work around this by always reporting ACPI_STA_DEFAULT for these |
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* devices. Note this MUST only be done for devices where this is safe. |
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* |
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* This forcing of devices to be present is limited to specific CPU (SoC) |
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* models both to avoid potentially causing trouble on other models and |
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* because some HIDs are re-used on different SoCs for completely |
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* different devices. |
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*/ |
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struct always_present_id { |
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struct acpi_device_id hid[2]; |
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struct x86_cpu_id cpu_ids[2]; |
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struct dmi_system_id dmi_ids[2]; /* Optional */ |
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const char *uid; |
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}; |
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#define X86_MATCH(model) X86_MATCH_INTEL_FAM6_MODEL(model, NULL) |
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#define ENTRY(hid, uid, cpu_models, dmi...) { \ |
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{ { hid, }, {} }, \ |
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{ cpu_models, {} }, \ |
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{ { .matches = dmi }, {} }, \ |
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uid, \ |
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} |
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static const struct always_present_id always_present_ids[] = { |
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/* |
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* Bay / Cherry Trail PWM directly poked by GPU driver in win10, |
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* but Linux uses a separate PWM driver, harmless if not used. |
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*/ |
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ENTRY("80860F09", "1", X86_MATCH(ATOM_SILVERMONT), {}), |
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ENTRY("80862288", "1", X86_MATCH(ATOM_AIRMONT), {}), |
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/* Lenovo Yoga Book uses PWM2 for keyboard backlight control */ |
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ENTRY("80862289", "2", X86_MATCH(ATOM_AIRMONT), { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"), |
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}), |
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/* |
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* The INT0002 device is necessary to clear wakeup interrupt sources |
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* on Cherry Trail devices, without it we get nobody cared IRQ msgs. |
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*/ |
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ENTRY("INT0002", "1", X86_MATCH(ATOM_AIRMONT), {}), |
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/* |
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* On the Dell Venue 11 Pro 7130 and 7139, the DSDT hides |
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* the touchscreen ACPI device until a certain time |
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* after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed |
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* *and* _STA has been called at least 3 times since. |
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*/ |
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ENTRY("SYNA7500", "1", X86_MATCH(HASWELL_L), { |
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
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DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"), |
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}), |
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ENTRY("SYNA7500", "1", X86_MATCH(HASWELL_L), { |
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
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DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7139"), |
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}), |
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/* |
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* The GPD win BIOS dated 20170221 has disabled the accelerometer, the |
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* drivers sometimes cause crashes under Windows and this is how the |
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* manufacturer has solved this :| Note that the the DMI data is less |
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* generic then it seems, a board_vendor of "AMI Corporation" is quite |
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* rare and a board_name of "Default String" also is rare. |
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* |
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* Unfortunately the GPD pocket also uses these strings and its BIOS |
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* was copy-pasted from the GPD win, so it has a disabled KIOX000A |
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* node which we should not enable, thus we also check the BIOS date. |
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*/ |
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ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), { |
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DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), |
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DMI_MATCH(DMI_BOARD_NAME, "Default string"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), |
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DMI_MATCH(DMI_BIOS_DATE, "02/21/2017") |
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}), |
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ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), { |
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DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), |
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DMI_MATCH(DMI_BOARD_NAME, "Default string"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), |
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DMI_MATCH(DMI_BIOS_DATE, "03/20/2017") |
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}), |
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ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), { |
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DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), |
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DMI_MATCH(DMI_BOARD_NAME, "Default string"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), |
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DMI_MATCH(DMI_BIOS_DATE, "05/25/2017") |
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}), |
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}; |
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bool acpi_device_always_present(struct acpi_device *adev) |
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{ |
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bool ret = false; |
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unsigned int i; |
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for (i = 0; i < ARRAY_SIZE(always_present_ids); i++) { |
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if (acpi_match_device_ids(adev, always_present_ids[i].hid)) |
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continue; |
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if (!adev->pnp.unique_id || |
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strcmp(adev->pnp.unique_id, always_present_ids[i].uid)) |
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continue; |
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if (!x86_match_cpu(always_present_ids[i].cpu_ids)) |
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continue; |
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if (always_present_ids[i].dmi_ids[0].matches[0].slot && |
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!dmi_check_system(always_present_ids[i].dmi_ids)) |
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continue; |
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ret = true; |
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break; |
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} |
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return ret; |
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} |
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/* |
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* AMD systems from Renoir and Lucienne *require* that the NVME controller |
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* is put into D3 over a Modern Standby / suspend-to-idle cycle. |
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* |
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* This is "typically" accomplished using the `StorageD3Enable` |
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* property in the _DSD that is checked via the `acpi_storage_d3` function |
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* but this property was introduced after many of these systems launched |
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* and most OEM systems don't have it in their BIOS. |
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* |
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* The Microsoft documentation for StorageD3Enable mentioned that Windows has |
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* a hardcoded allowlist for D3 support, which was used for these platforms. |
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* |
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* This allows quirking on Linux in a similar fashion. |
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*/ |
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static const struct x86_cpu_id storage_d3_cpu_ids[] = { |
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X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 96, NULL), /* Renoir */ |
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X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 104, NULL), /* Lucienne */ |
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{} |
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}; |
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bool force_storage_d3(void) |
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{ |
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return x86_match_cpu(storage_d3_cpu_ids); |
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}
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