drivers/platform/x86/amd/pmc/pmc-quirks.c
Source file repositories/reference/linux-study-clean/drivers/platform/x86/amd/pmc/pmc-quirks.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/platform/x86/amd/pmc/pmc-quirks.c- Extension
.c- Size
- 9462 bytes
- Lines
- 385
- Domain
- Driver Families
- Bucket
- drivers/platform
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/dmi.hlinux/io.hlinux/ioport.hlinux/platform_data/x86/amd-fch.hpmc.h
Detected Declarations
struct quirk_entryfunction enabledfunction amd_pmc_process_restore_quirksfunction amd_pmc_quirks_init
Annotated Snippet
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"),
}
Annotation
- Immediate include surface: `linux/dmi.h`, `linux/io.h`, `linux/ioport.h`, `linux/platform_data/x86/amd-fch.h`, `pmc.h`.
- Detected declarations: `struct quirk_entry`, `function enabled`, `function amd_pmc_process_restore_quirks`, `function amd_pmc_quirks_init`.
- Atlas domain: Driver Families / drivers/platform.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.