arch/x86/kernel/cpu/mtrr/mtrr.c
Source file repositories/reference/linux-study-clean/arch/x86/kernel/cpu/mtrr/mtrr.c
File Facts
- System
- Linux kernel
- Corpus path
arch/x86/kernel/cpu/mtrr/mtrr.c- Extension
.c- Size
- 17386 bytes
- Lines
- 634
- Domain
- Architecture Layer
- Bucket
- arch/x86
- Inferred role
- Architecture Layer: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/types.hlinux/stop_machine.hlinux/kvm_para.hlinux/uaccess.hlinux/export.hlinux/mutex.hlinux/init.hlinux/sort.hlinux/cpu.hlinux/pci.hlinux/smp.hlinux/syscore_ops.hlinux/rcupdate.hasm/cacheinfo.hasm/cpufeature.hasm/e820/api.hasm/mtrr.hasm/msr.hasm/memtype.hmtrr.h
Detected Declarations
struct set_mtrr_datafunction have_wrcombfunction init_tablefunction mtrr_rendezvous_handlerfunction types_compatiblefunction set_mtrrfunction mtrr_add_pagefunction mtrr_checkfunction mtrr_addfunction mtrr_del_pagefunction mtrr_delfunction arch_phys_wc_addfunction mtrr_del_wc_if_neededfunction arch_phys_wc_indexfunction initializedfunction mtrr_save_statefunction mtrr_init_finalizemodule init mtrr_init_finalizeexport arch_phys_wc_addexport arch_phys_wc_delexport arch_phys_wc_index
Annotated Snippet
subsys_initcall(mtrr_init_finalize);Annotation
- Immediate include surface: `linux/types.h`, `linux/stop_machine.h`, `linux/kvm_para.h`, `linux/uaccess.h`, `linux/export.h`, `linux/mutex.h`, `linux/init.h`, `linux/sort.h`.
- Detected declarations: `struct set_mtrr_data`, `function have_wrcomb`, `function init_table`, `function mtrr_rendezvous_handler`, `function types_compatible`, `function set_mtrr`, `function mtrr_add_page`, `function mtrr_check`, `function mtrr_add`, `function mtrr_del_page`.
- Atlas domain: Architecture Layer / arch/x86.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.