drivers/edac/i82875p_edac.c
Source file repositories/reference/linux-study-clean/drivers/edac/i82875p_edac.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/edac/i82875p_edac.c- Extension
.c- Size
- 14958 bytes
- Lines
- 600
- Domain
- Driver Families
- Bucket
- drivers/edac
- Inferred role
- Driver Families: operation-table or driver-model contract
- Status
- pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/init.hlinux/pci.hlinux/pci_ids.hlinux/edac.hedac_module.h
Detected Declarations
struct i82875p_pvtstruct i82875p_dev_infostruct i82875p_error_infoenum i82875p_chipsfunction i82875p_get_error_infofunction i82875p_process_error_infofunction i82875p_checkfunction i82875p_setup_overfl_devfunction dual_channel_activefunction i82875p_init_csrowsfunction i82875p_probe1function i82875p_init_onefunction i82875p_remove_onefunction i82875p_initfunction i82875p_exitmodule init i82875p_init
Annotated Snippet
static struct pci_driver i82875p_driver = {
.name = EDAC_MOD_STR,
.probe = i82875p_init_one,
.remove = i82875p_remove_one,
.id_table = i82875p_pci_tbl,
};
static int __init i82875p_init(void)
{
int pci_rc;
edac_dbg(3, "\n");
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
pci_rc = pci_register_driver(&i82875p_driver);
if (pci_rc < 0)
goto fail0;
if (mci_pdev == NULL) {
mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_82875_0, NULL);
if (!mci_pdev) {
edac_dbg(0, "875p pci_get_device fail\n");
pci_rc = -ENODEV;
goto fail1;
}
pci_rc = i82875p_init_one(mci_pdev, i82875p_pci_tbl);
if (pci_rc < 0) {
edac_dbg(0, "875p init fail\n");
pci_rc = -ENODEV;
goto fail1;
}
}
return 0;
fail1:
pci_unregister_driver(&i82875p_driver);
fail0:
pci_dev_put(mci_pdev);
return pci_rc;
}
static void __exit i82875p_exit(void)
{
edac_dbg(3, "\n");
i82875p_remove_one(mci_pdev);
pci_dev_put(mci_pdev);
pci_unregister_driver(&i82875p_driver);
}
module_init(i82875p_init);
module_exit(i82875p_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh");
MODULE_DESCRIPTION("MC support for Intel 82875 memory hub controllers");
module_param(edac_op_state, int, 0444);
MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");
Annotation
- Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/pci.h`, `linux/pci_ids.h`, `linux/edac.h`, `edac_module.h`.
- Detected declarations: `struct i82875p_pvt`, `struct i82875p_dev_info`, `struct i82875p_error_info`, `enum i82875p_chips`, `function i82875p_get_error_info`, `function i82875p_process_error_info`, `function i82875p_check`, `function i82875p_setup_overfl_dev`, `function dual_channel_active`, `function i82875p_init_csrows`.
- Atlas domain: Driver Families / drivers/edac.
- Implementation status: pattern 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.