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/linux-6.8/tools/perf/pmu-events/arch/x86/amdzen4/
Dfloating-point.json5 "BriefDescription": "Retired x87 floating-point add and subtract ops.",
11 "BriefDescription": "Retired x87 floating-point multiply ops.",
17 "BriefDescription": "Retired x87 floating-point divide and square root ops.",
23 "BriefDescription": "Retired x87 floating-point ops of all types.",
29 "BriefDescription": "Retired SSE and AVX floating-point add and subtract ops.",
35 "BriefDescription": "Retired SSE and AVX floating-point multiply ops.",
41 "BriefDescription": "Retired SSE and AVX floating-point divide and square root ops.",
47 …"BriefDescription": "Retired SSE and AVX floating-point multiply-accumulate ops (each operation is…
53 …"BriefDescription": "Retired SSE and AVX floating-point bfloat multiply-accumulate ops (each opera…
59 "BriefDescription": "Retired SSE and AVX floating-point ops of all types.",
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/meteorlake/
Dfloating-point.json3 "BriefDescription": "This event counts the cycles the floating point divider is busy.",
15 "PublicDescription": "Counts all microcode Floating Point assists.",
53-bit packed double precision floating-point instructions retired; some instructions will count twi…
56-bit packed double precision floating-point instructions retired; some instructions will count twi…
62-bit packed single precision floating-point instructions retired; some instructions will count twi…
65-bit packed single precision floating-point instructions retired; some instructions will count twi…
71-bit packed double precision floating-point instructions retired; some instructions will count twi…
74-bit packed double precision floating-point instructions retired; some instructions will count twi…
80-bit packed single precision floating-point instructions retired; some instructions will count twi…
83-bit packed single precision floating-point instructions retired; some instructions will count twi…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/tigerlake/
Dfloating-point.json6 "PublicDescription": "Counts all microcode Floating Point assists.",
11-bit packed double precision floating-point instructions retired; some instructions will count twi…
14-bit packed double precision floating-point instructions retired; some instructions will count twi…
19-bit packed single precision floating-point instructions retired; some instructions will count twi…
22-bit packed single precision floating-point instructions retired; some instructions will count twi…
27-bit packed double precision floating-point instructions retired; some instructions will count twi…
30-bit packed double precision floating-point instructions retired; some instructions will count twi…
35-bit packed single precision floating-point instructions retired; some instructions will count twi…
38-bit packed single precision floating-point instructions retired; some instructions will count twi…
43 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/rocketlake/
Dfloating-point.json6 "PublicDescription": "Counts all microcode Floating Point assists.",
11-bit packed double precision floating-point instructions retired; some instructions will count twi…
14-bit packed double precision floating-point instructions retired; some instructions will count twi…
19-bit packed single precision floating-point instructions retired; some instructions will count twi…
22-bit packed single precision floating-point instructions retired; some instructions will count twi…
27-bit packed double precision floating-point instructions retired; some instructions will count twi…
30-bit packed double precision floating-point instructions retired; some instructions will count twi…
35-bit packed single precision floating-point instructions retired; some instructions will count twi…
38-bit packed single precision floating-point instructions retired; some instructions will count twi…
43 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/icelake/
Dfloating-point.json6 "PublicDescription": "Counts all microcode Floating Point assists.",
11-bit packed double precision floating-point instructions retired; some instructions will count twi…
14-bit packed double precision floating-point instructions retired; some instructions will count twi…
19-bit packed single precision floating-point instructions retired; some instructions will count twi…
22-bit packed single precision floating-point instructions retired; some instructions will count twi…
27-bit packed double precision floating-point instructions retired; some instructions will count twi…
30-bit packed double precision floating-point instructions retired; some instructions will count twi…
35-bit packed single precision floating-point instructions retired; some instructions will count twi…
38-bit packed single precision floating-point instructions retired; some instructions will count twi…
43 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/icelakex/
Dfloating-point.json6 "PublicDescription": "Counts all microcode Floating Point assists.",
11-bit packed double precision floating-point instructions retired; some instructions will count twi…
14-bit packed double precision floating-point instructions retired; some instructions will count twi…
19-bit packed single precision floating-point instructions retired; some instructions will count twi…
22-bit packed single precision floating-point instructions retired; some instructions will count twi…
27-bit packed double precision floating-point instructions retired; some instructions will count twi…
30-bit packed double precision floating-point instructions retired; some instructions will count twi…
35-bit packed single precision floating-point instructions retired; some instructions will count twi…
38-bit packed single precision floating-point instructions retired; some instructions will count twi…
43 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/alderlake/
Dfloating-point.json15 "PublicDescription": "Counts all microcode Floating Point assists.",
53-bit packed double precision floating-point instructions retired; some instructions will count twi…
56-bit packed double precision floating-point instructions retired; some instructions will count twi…
62-bit packed single precision floating-point instructions retired; some instructions will count twi…
65-bit packed single precision floating-point instructions retired; some instructions will count twi…
71-bit packed double precision floating-point instructions retired; some instructions will count twi…
74-bit packed double precision floating-point instructions retired; some instructions will count twi…
80-bit packed single precision floating-point instructions retired; some instructions will count twi…
83-bit packed single precision floating-point instructions retired; some instructions will count twi…
89 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/cascadelakex/
Dfloating-point.json3 …riefDescription": "Counts once for most SIMD 128-bit packed computational double precision floatin…
6-bit packed computational double precision floating-point instructions retired; some instructions …
11 …riefDescription": "Counts once for most SIMD 128-bit packed computational single precision floatin…
14-bit packed computational single precision floating-point instructions retired; some instructions …
19 …riefDescription": "Counts once for most SIMD 256-bit packed double computational precision floatin…
22-bit packed double computational precision floating-point instructions retired; some instructions …
27 …riefDescription": "Counts once for most SIMD 256-bit packed single computational precision floatin…
30-bit packed single computational precision floating-point instructions retired; some instructions …
35 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
38-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/skylakex/
Dfloating-point.json3 …riefDescription": "Counts once for most SIMD 128-bit packed computational double precision floatin…
6-bit packed computational double precision floating-point instructions retired; some instructions …
11 …riefDescription": "Counts once for most SIMD 128-bit packed computational single precision floatin…
14-bit packed computational single precision floating-point instructions retired; some instructions …
19 …riefDescription": "Counts once for most SIMD 256-bit packed double computational precision floatin…
22-bit packed double computational precision floating-point instructions retired; some instructions …
27 …riefDescription": "Counts once for most SIMD 256-bit packed single computational precision floatin…
30-bit packed single computational precision floating-point instructions retired; some instructions …
35 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
38-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/broadwell/
Dfloating-point.json3-bit packed double precision floating-point instructions retired; some instructions will count twi…
6-bit packed double precision floating-point instructions retired; some instructions will count twi…
11-bit packed single precision floating-point instructions retired; some instructions will count twi…
14-bit packed single precision floating-point instructions retired; some instructions will count twi…
19-bit packed double precision floating-point instructions retired; some instructions will count twi…
22-bit packed double precision floating-point instructions retired; some instructions will count twi…
27-bit packed single precision floating-point instructions retired; some instructions will count twi…
30-bit packed single precision floating-point instructions retired; some instructions will count twi…
35 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
38-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/broadwellx/
Dfloating-point.json3-bit packed double precision floating-point instructions retired; some instructions will count twi…
6-bit packed double precision floating-point instructions retired; some instructions will count twi…
11-bit packed single precision floating-point instructions retired; some instructions will count twi…
14-bit packed single precision floating-point instructions retired; some instructions will count twi…
19-bit packed double precision floating-point instructions retired; some instructions will count twi…
22-bit packed double precision floating-point instructions retired; some instructions will count twi…
27-bit packed single precision floating-point instructions retired; some instructions will count twi…
30-bit packed single precision floating-point instructions retired; some instructions will count twi…
35 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
38-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/broadwellde/
Dfloating-point.json3-bit packed double precision floating-point instructions retired; some instructions will count twi…
6-bit packed double precision floating-point instructions retired; some instructions will count twi…
11-bit packed single precision floating-point instructions retired; some instructions will count twi…
14-bit packed single precision floating-point instructions retired; some instructions will count twi…
19-bit packed double precision floating-point instructions retired; some instructions will count twi…
22-bit packed double precision floating-point instructions retired; some instructions will count twi…
27-bit packed single precision floating-point instructions retired; some instructions will count twi…
30-bit packed single precision floating-point instructions retired; some instructions will count twi…
35 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
38-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/sapphirerapids/
Dfloating-point.json14 "PublicDescription": "Counts all microcode Floating Point assists.",
68-bit packed double precision floating-point instructions retired; some instructions will count twi…
71-bit packed double precision floating-point instructions retired; some instructions will count twi…
76-bit packed single precision floating-point instructions retired; some instructions will count twi…
79-bit packed single precision floating-point instructions retired; some instructions will count twi…
84-bit packed double precision floating-point instructions retired; some instructions will count twi…
87-bit packed double precision floating-point instructions retired; some instructions will count twi…
92-bit packed single precision floating-point instructions retired; some instructions will count twi…
95-bit packed single precision floating-point instructions retired; some instructions will count twi…
100 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/emeraldrapids/
Dfloating-point.json14 "PublicDescription": "Counts all microcode Floating Point assists.",
68-bit packed double precision floating-point instructions retired; some instructions will count twi…
71-bit packed double precision floating-point instructions retired; some instructions will count twi…
76-bit packed single precision floating-point instructions retired; some instructions will count twi…
79-bit packed single precision floating-point instructions retired; some instructions will count twi…
84-bit packed double precision floating-point instructions retired; some instructions will count twi…
87-bit packed double precision floating-point instructions retired; some instructions will count twi…
92-bit packed single precision floating-point instructions retired; some instructions will count twi…
95-bit packed single precision floating-point instructions retired; some instructions will count twi…
100 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/skylake/
Dfloating-point.json3 …riefDescription": "Counts once for most SIMD 128-bit packed computational double precision floatin…
6-bit packed computational double precision floating-point instructions retired; some instructions …
11 …riefDescription": "Counts once for most SIMD 128-bit packed computational single precision floatin…
14-bit packed computational single precision floating-point instructions retired; some instructions …
19 …riefDescription": "Counts once for most SIMD 256-bit packed double computational precision floatin…
22-bit packed double computational precision floating-point instructions retired; some instructions …
27 …riefDescription": "Counts once for most SIMD 256-bit packed single computational precision floatin…
30-bit packed single computational precision floating-point instructions retired; some instructions …
35 …"BriefDescription": "Number of SSE/AVX computational 128-bit packed single and 256-bit packed doub…
38-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
[all …]
/linux-6.8/Documentation/arch/arm/nwfpe/
Dnetwinder-fpe.rst5 The following describes the current state of the NetWinder's floating point
8 In the following nomenclature is used to describe the floating point
14 {P|M|Z} = {round to +infinity,round to -infinity,round to zero},
19 Floating Point Coprocessor Data Transfer Instructions (CPDT)
20 ------------------------------------------------------------
22 LDF/STF - load and store floating
30 LFM/SFM - load and store multiple floating
41 for each floating point register into the memory location given in the
46 Floating Point Coprocessor Register Transfer Instructions (CPRT)
47 ----------------------------------------------------------------
[all …]
/linux-6.8/tools/perf/pmu-events/arch/powerpc/power10/
Dfloating_point.json5 …"BriefDescription": "Floating Point Operations Completed. Includes any type. It counts once for ea…
10 …"BriefDescription": "One floating point instruction completed (fadd, fmul, fsub, fcmp, fsel, fabs,…
15 …"BriefDescription": "Four floating point instruction completed (fadd, fmul, fsub, fcmp, fsel, fabs…
20 …"BriefDescription": "Two floating point instruction completed (FMA class of instructions: fmadd, f…
25 "BriefDescription": "Scalar floating point instruction completed."
30 "BriefDescription": "Single Precision floating point instruction completed."
35 "BriefDescription": "Math floating point instruction completed."
55 "BriefDescription": "Vector floating point instruction completed."
65 "BriefDescription": "Double-Precision or Quad-Precision instruction completed."
/linux-6.8/tools/perf/pmu-events/arch/riscv/sifive/u74/
Dinstructions.json60 "BriefDescription": "Floating-point load instruction retired"
65 "BriefDescription": "Floating-point store instruction retired"
70 "BriefDescription": "Floating-point addition retired"
75 "BriefDescription": "Floating-point multiplication retired"
80 "BriefDescription": "Floating-point fused multiply-add retired"
85 "BriefDescription": "Floating-point division or square-root retired"
90 "BriefDescription": "Other floating-point instruction retired"
/linux-6.8/tools/perf/pmu-events/arch/arm64/
Dcommon-and-microarch.json129 "PublicDescription": "Attributable Level 1 data cache write-back",
132 "BriefDescription": "Attributable Level 1 data cache write-back"
147 "PublicDescription": "Attributable Level 2 data cache write-back",
150 "BriefDescription": "Attributable Level 2 data cache write-back"
273 "PublicDescription": "Access to another socket in a multi-socket system",
276 "BriefDescription": "Access to another socket in a multi-socket system"
303 … "PublicDescription": "Attributable memory read access to another socket in a multi-socket system",
306 … "BriefDescription": "Attributable memory read access to another socket in a multi-socket system"
309 …"PublicDescription": "Level 1 data cache long-latency read miss. The counter counts each memory r…
312 "BriefDescription": "Level 1 data cache long-latency read miss"
[all …]
/linux-6.8/arch/arm/nwfpe/
Dsoftfloat.c4 This C source file is part of the SoftFloat IEC/IEEE Floating-point
10 National Science Foundation under grant MIP-9311980. The original version
11 of this code was written as part of a project to build a fixed-point vector
15 http://www.jhauser.us/arithmetic/SoftFloat-2b/SoftFloat-source.txt
38 -------------------------------------------------------------------------------
39 Primitive arithmetic functions, including multi-word arithmetic, and
42 -------------------------------------------------------------------------------
44 #include "softfloat-macros"
47 -------------------------------------------------------------------------------
52 are propagated from function inputs to output. These details are target-
[all …]
Dentry.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 NetWinder Floating Point Emulator
14 /* This is the kernel's entry point into the floating point emulator.
24 strb r8, [r10, #TSK_USED_MATH] @ set current->used_math
27 ldr pc, [r4] @ Call FP emulator entry point
40 is used as a flag to detect the first time a process uses floating point,
49 2) It calls EmulateAll to emulate a floating point instruction.
53 the next instruction. If it is a floating point instruction, it
55 way it repeatedly looks ahead and executes floating point instructions
56 until it encounters a non floating point instruction, at which time it
[all …]
/linux-6.8/arch/s390/include/asm/fpu/
Dapi.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * In-kernel FPU support functions
6 * Consider these guidelines before using in-kernel FPU functions:
8 * 1. Use kernel_fpu_begin() and kernel_fpu_end() to enclose all in-kernel
9 * use of floating-point or vector registers and instructions.
14 * a) If your function typically runs in process-context, use the lower
16 * b) If your function typically runs in soft-irq or hard-irq context,
32 * 5. To use vector floating-point instructions, specify the KERNEL_FPC
33 * flag to save and restore floating-point controls in addition to any
36 * 6. To use floating-point registers and instructions only, specify the
[all …]
/linux-6.8/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/
Dfp_operation.json4 … "PublicDescription": "Counts speculatively executed half precision floating point operations."
8 … "PublicDescription": "Counts speculatively executed single precision floating point operations."
12 … "PublicDescription": "Counts speculatively executed double precision floating point operations."
16 …cDescription": "Counts speculatively executed scalable single precision floating point operations."
20 …"PublicDescription": "Counts speculatively executed non-scalable single precision floating point o…
/linux-6.8/arch/parisc/math-emu/
Dfcnvfxt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Linux/PA-RISC Project (http://www.parisc-linux.org/)
5 * Floating-point emulation code
6 * Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
15 * Single Floating-point to Single Fixed-point /w truncated result
16 * Single Floating-point to Double Fixed-point /w truncated result
17 * Double Floating-point to Single Fixed-point /w truncated result
18 * Double Floating-point to Double Fixed-point /w truncated result
41 * Convert single floating-point to single fixed-point format
56 src_exponent = Sgl_exponent(src) - SGL_BIAS; in sgl_to_sgl_fcnvfxt()
[all …]
/linux-6.8/tools/perf/pmu-events/arch/x86/nehalemex/
Dfloating-point.json3 "BriefDescription": "X87 Floating point assists (Precise Event)",
11 "BriefDescription": "X87 Floating point assists for invalid input value (Precise Event)",
19 "BriefDescription": "X87 Floating point assists for invalid output value (Precise Event)",
76 "BriefDescription": "Computational floating-point operations executed",
83 "BriefDescription": "All Floating Point to and from MMX transitions",
90 "BriefDescription": "Transitions from MMX to Floating Point instructions",
97 "BriefDescription": "Transitions from Floating Point to MMX instructions",

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