arch/mips/include/asm/fpu_emulator.h

File Facts

System

Linux kernel

Corpus path

arch/mips/include/asm/fpu_emulator.h

Extension

.h

Size

4844 bytes

Lines

188

Domain

Architecture Layer

Bucket

arch/mips

Inferred role

Architecture Layer: implementation source

Status

source 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/sched.h
• asm/dsemul.h
• asm/thread_info.h
• asm/inst.h
• asm/local.h
• asm/processor.h

Detected Declarations

• struct mips_fpu_emulator_stats
• function mask_fcr31_x

Annotated Snippet

struct mips_fpu_emulator_stats {
	unsigned long emulated;
	unsigned long loads;
	unsigned long stores;
	unsigned long branches;
	unsigned long cp1ops;
	unsigned long cp1xops;
	unsigned long errors;
	unsigned long ieee754_inexact;
	unsigned long ieee754_underflow;
	unsigned long ieee754_overflow;
	unsigned long ieee754_zerodiv;
	unsigned long ieee754_invalidop;
	unsigned long ds_emul;

	unsigned long abs_s;
	unsigned long abs_d;
	unsigned long add_s;
	unsigned long add_d;
	unsigned long bc1eqz;
	unsigned long bc1nez;
	unsigned long ceil_w_s;
	unsigned long ceil_w_d;
	unsigned long ceil_l_s;
	unsigned long ceil_l_d;
	unsigned long class_s;
	unsigned long class_d;
	unsigned long cmp_af_s;
	unsigned long cmp_af_d;
	unsigned long cmp_eq_s;
	unsigned long cmp_eq_d;
	unsigned long cmp_le_s;
	unsigned long cmp_le_d;
	unsigned long cmp_lt_s;
	unsigned long cmp_lt_d;
	unsigned long cmp_ne_s;
	unsigned long cmp_ne_d;
	unsigned long cmp_or_s;
	unsigned long cmp_or_d;
	unsigned long cmp_ueq_s;
	unsigned long cmp_ueq_d;
	unsigned long cmp_ule_s;
	unsigned long cmp_ule_d;
	unsigned long cmp_ult_s;
	unsigned long cmp_ult_d;
	unsigned long cmp_un_s;
	unsigned long cmp_un_d;
	unsigned long cmp_une_s;
	unsigned long cmp_une_d;
	unsigned long cmp_saf_s;
	unsigned long cmp_saf_d;
	unsigned long cmp_seq_s;
	unsigned long cmp_seq_d;
	unsigned long cmp_sle_s;
	unsigned long cmp_sle_d;
	unsigned long cmp_slt_s;
	unsigned long cmp_slt_d;
	unsigned long cmp_sne_s;
	unsigned long cmp_sne_d;
	unsigned long cmp_sor_s;
	unsigned long cmp_sor_d;
	unsigned long cmp_sueq_s;
	unsigned long cmp_sueq_d;
	unsigned long cmp_sule_s;
	unsigned long cmp_sule_d;
	unsigned long cmp_sult_s;
	unsigned long cmp_sult_d;
	unsigned long cmp_sun_s;
	unsigned long cmp_sun_d;
	unsigned long cmp_sune_s;
	unsigned long cmp_sune_d;
	unsigned long cvt_d_l;
	unsigned long cvt_d_s;
	unsigned long cvt_d_w;
	unsigned long cvt_l_s;
	unsigned long cvt_l_d;
	unsigned long cvt_s_d;
	unsigned long cvt_s_l;
	unsigned long cvt_s_w;
	unsigned long cvt_w_s;
	unsigned long cvt_w_d;
	unsigned long div_s;
	unsigned long div_d;
	unsigned long floor_w_s;
	unsigned long floor_w_d;
	unsigned long floor_l_s;
	unsigned long floor_l_d;
	unsigned long maddf_s;
	unsigned long maddf_d;
	unsigned long max_s;

Annotation

• Immediate include surface: `linux/sched.h`, `asm/dsemul.h`, `asm/thread_info.h`, `asm/inst.h`, `asm/local.h`, `asm/processor.h`.
• Detected declarations: `struct mips_fpu_emulator_stats`, `function mask_fcr31_x`.
• Atlas domain: Architecture Layer / arch/mips.
• 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.