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/freebsd-src/sys/contrib/openzfs/config/
H A Dkernel-fpu.m42 dnl # Handle differences in kernel FPU code.
5 dnl # 5.19: The asm/fpu/internal.h header was removed, it has been
11 dnl # 5.0: Wrappers have been introduced to save/restore the FPU state.
25 AC_MSG_CHECKING([whether fpu headers are available])
28 #include <asm/fpu/api.h>
32 [kernel has asm/fpu/api.h])
36 #include <asm/fpu/internal.h>
40 [kernel has asm/fpu/internal.h])
41 AC_MSG_RESULT([asm/fpu/api.h asm/fpu/internal.h])
43 AC_MSG_RESULT([asm/fpu/api.h])
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/freebsd-src/share/man/man9/
H A Dfpu_kern.929 .Nd "facility to use the FPU in the kernel"
47 family of functions allows the use of FPU hardware in kernel code.
51 These facilities share registers with the FPU hardware.
53 Typical kernel code does not need access to the FPU.
56 When kernel code uses the FPU, the current FPU state must be saved to
60 The processor catches accesses to the FPU registers
63 the notification of the start and end of the code using the FPU.
69 to track the use of the FPU hardware state and the related software state.
95 use of the FPU is allowed.
110 Indicates that the caller intends to access the full FPU state.
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/freebsd-src/contrib/llvm-project/lldb/source/Plugins/Process/Utility/
H A DRegisterContextDarwin_i386.cpp133 (LLVM_EXTENSION offsetof(RegisterContextDarwin_i386::FPU, reg) + \
138 sizeof(RegisterContextDarwin_i386::FPU))
148 #reg, NULL, sizeof(((RegisterContextDarwin_i386::FPU *) NULL)->reg), \
152 sizeof(((RegisterContextDarwin_i386::FPU *) NULL)->reg[i].bytes), \
164 sizeof(RegisterContextDarwin_i386::FPU) + \
399 : RegisterContext(thread, concrete_frame_idx), gpr(), fpu(), exc() { in RegisterContextDarwin_i386()
464 {"Floating Point Registers", "fpu", k_num_fpu_registers, g_fpu_regnums},
513 SetError(set, Read, DoReadFPU(GetThreadID(), set, fpu)); in ReadFPU()
543 SetError(set, Write, DoWriteFPU(GetThreadID(), set, fpu)); in WriteFPU()
622 value = fpu.fcw; in ReadRegister()
[all …]
H A DRegisterContextDarwin_x86_64.cpp151 (LLVM_EXTENSION offsetof(RegisterContextDarwin_x86_64::FPU, reg) + \
156 sizeof(RegisterContextDarwin_x86_64::FPU))
166 #reg, NULL, sizeof(((RegisterContextDarwin_x86_64::FPU *) NULL)->reg), \
170 sizeof(((RegisterContextDarwin_x86_64::FPU *) NULL)->reg[i].bytes), \
182 sizeof(RegisterContextDarwin_x86_64::FPU) + \
461 : RegisterContext(thread, concrete_frame_idx), gpr(), fpu(), exc() { in RegisterContextDarwin_x86_64()
525 {"Floating Point Registers", "fpu", k_num_fpu_registers, g_fpu_regnums},
562 SetError(set, Read, DoReadFPU(GetThreadID(), set, fpu)); in ReadFPU()
592 SetError(set, Write, DoWriteFPU(GetThreadID(), set, fpu)); in WriteFPU()
673 value = fpu.fcw; in ReadRegister()
[all …]
H A DRegisterContextLinux_i386.cpp36 uint16_t fctrl; // FPU Control Word (fcw)
37 uint16_t fstat; // FPU Status Word (fsw)
38 uint16_t ftag; // FPU Tag Word (ftw)
46 uint32_t fioff; // FPU IP Offset (fip)
47 uint32_t fiseg; // FPU IP Selector (fcs)
48 uint32_t fooff; // FPU Operand Pointer Offset (foo)
49 uint32_t foseg; // FPU Operand Pointer Selector (fos)
62 int32_t fpvalid; // True if FPU is being used.
63 FPR_i386 i387; // FPU registers.
H A DRegisterContextMach_i386.cpp29 int RegisterContextMach_i386::DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) { in DoReadFPU() argument
31 return ::thread_get_state(tid, flavor, (thread_state_t)&fpu, &count); in DoReadFPU()
47 const FPU &fpu) { in DoWriteFPU() argument
49 tid, flavor, reinterpret_cast<thread_state_t>(const_cast<FPU *>(&fpu)), in DoWriteFPU()
H A DRegisterContextMach_x86_64.cpp31 FPU &fpu) { in DoReadFPU() argument
33 return ::thread_get_state(tid, flavor, (thread_state_t)&fpu, &count); in DoReadFPU()
50 const FPU &fpu) { in DoWriteFPU() argument
52 tid, flavor, reinterpret_cast<thread_state_t>(const_cast<FPU *>(&fpu)), in DoWriteFPU()
H A DRegisterContext_x86.cpp13 // Convert the 8-bit abridged FPU Tag Word (as found in FXSAVE) to the full
14 // 16-bit FPU Tag Word (as found in FSAVE, and used by gdb protocol). This
15 // requires knowing the values of the ST(i) registers and the FPU Status Word.
18 // Tag word is using internal FPU register numbering rather than ST(i). in AbridgedToFullTagWord()
19 // Mapping to ST(i): i = FPU regno - TOP (Status Word, bits 11:13). in AbridgedToFullTagWord()
20 // Here we start with FPU reg 7 and go down. in AbridgedToFullTagWord()
47 // Convert the 16-bit FPU Tag Word to the abridged 8-bit value, to be written
H A DRegisterContextMach_arm.cpp31 int RegisterContextMach_arm::DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) { in DoReadFPU() argument
33 return ::thread_get_state(tid, flavor, (thread_state_t)&fpu, &count); in DoReadFPU()
54 const FPU &fpu) { in DoWriteFPU() argument
56 tid, flavor, reinterpret_cast<thread_state_t>(const_cast<FPU *>(&fpu)), in DoWriteFPU()
H A DRegisterContextNetBSD_i386.cpp36 uint16_t fctrl; // FPU Control Word (fcw)
37 uint16_t fstat; // FPU Status Word (fsw)
38 uint16_t ftag; // FPU Tag Word (ftw)
46 uint32_t fioff; // FPU IP Offset (fip)
47 uint32_t fiseg; // FPU IP Selector (fcs)
48 uint32_t fooff; // FPU Operand Pointer Offset (foo)
49 uint32_t foseg; // FPU Operand Pointer Selector (fos)
H A DRegisterContextDarwin_i386.h75 struct FPU { struct
107 FPUWordCount = sizeof(FPU) / sizeof(uint32_t), argument
114 FPU fpu; variable
185 virtual int DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) = 0;
191 virtual int DoWriteFPU(lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
H A DRegisterContextDarwin_x86_64.h80 struct FPU { struct
112 FPUWordCount = sizeof(FPU) / sizeof(uint32_t), argument
119 FPU fpu; variable
190 virtual int DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) = 0;
196 virtual int DoWriteFPU(lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
H A DRegisterContextDarwin_arm64.h80 struct FPU { struct
114 FPUWordCount = sizeof(FPU) / sizeof(uint32_t), // ARM_NEON_STATE64_COUNT
123 FPU fpu; variable
204 virtual int DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) = 0;
212 virtual int DoWriteFPU(lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
H A DRegisterContextDarwin_arm64.cpp43 (LLVM_EXTENSION offsetof(RegisterContextDarwin_arm64::FPU, reg))
48 sizeof(RegisterContextDarwin_arm64::FPU))
52 sizeof(RegisterContextDarwin_arm64::FPU) + \
65 sizeof(RegisterContextDarwin_arm64::FPU) + \
97 : RegisterContext(thread, concrete_frame_idx), gpr(), fpu(), exc(), dbg() { in RegisterContextDarwin_arm64()
145 {"Floating Point Registers", "fpu", k_num_fpu_registers, g_fpu_regnums},
182 SetError(set, Read, DoReadFPU(GetThreadID(), set, fpu)); in ReadFPU()
220 SetError(set, Write, DoWriteFPU(GetThreadID(), set, fpu)); in WriteFPU()
424 value.SetBytes(fpu.v[reg - fpu_v0].bytes, reg_info->byte_size, in ReadRegister()
462 DataExtractor regdata(&fpu.v[reg - fpu_s0], 4, process_sp->GetByteOrder(), in ReadRegister()
[all …]
H A DRegisterContextDarwin_arm.h98 struct FPU { struct
148 FPUWordCount = sizeof(FPU) / sizeof(uint32_t),
156 FPU fpu; variable
237 virtual int DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) = 0;
245 virtual int DoWriteFPU(lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
/freebsd-src/lib/libpmc/pmu-events/arch/x86/amdzen1/
H A Dfloating-point.json6 …nd dual-pipe uOps dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
13 …nd dual-pipe uOps dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
20 …nd dual-pipe uOps dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
27 …nd dual-pipe uOps dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
34 …nd dual-pipe uOps dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
40 "BriefDescription": "Total number uOps assigned to all fpu pipes.",
41 …nd dual-pipe uOps dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
48 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
55 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
62 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
[all …]
/freebsd-src/contrib/llvm-project/clang/lib/Basic/Targets/
H A DAArch64.cpp65 FPU |= NeonMode; in setArchFeatures()
93 FPU |= NeonMode; in setArchFeatures()
111 FPU |= SveMode; in setArchFeatures()
124 FPU |= NeonMode; in setArchFeatures()
217 // aapcs-soft is not allowed for targets with an FPU, to avoid there being in validateBranchProtection()
428 if (FPU & FPUMode) in getTargetDefines()
444 if (FPU & NeonMode) { in getTargetDefines()
450 if (FPU & SveMode) in getTargetDefines()
453 if ((FPU & NeonMode) && (FPU in getTargetDefines()
[all...]
/freebsd-src/contrib/llvm-project/clang/lib/Driver/ToolChains/Arch/
H A DLoongArch.cpp39 int FPU = -1; in getLoongArchABI() local
43 FPU = 64; in getLoongArchABI()
45 FPU = 32; in getLoongArchABI()
47 FPU = 0; in getLoongArchABI()
80 if (FPU != -1 && ImpliedFPU != FPU) in getLoongArchABI()
92 switch (FPU) { in getLoongArchABI()
160 StringRef FPU = A->getValue(); in getLoongArchTargetFeatures()
161 if (FPU == "64") { in getLoongArchTargetFeatures()
164 } else if (FPU in getLoongArchTargetFeatures()
153 StringRef FPU = A->getValue(); getLoongArchTargetFeatures() local
[all...]
/freebsd-src/tools/test/stress2/misc/
H A Dfpu.sh29 # Regression test for FPU changes in r208833
35 sed '1,/^EOF/d' < $here/$0 > fpu.c
36 mycc -o fpu -Wall -O2 fpu.c
37 rm -f fpu.c
41 r=`/tmp/fpu`
45 rm -f /tmp/fpu
/freebsd-src/lib/libpmc/pmu-events/arch/x86/amdzen2/
H A Dfloating-point.json6 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
13 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
20 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
27 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
34 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
/freebsd-src/lib/libpmc/pmu-events/arch/x86/amdzen3/
H A Dfloating-point.json6 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
13 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
20 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
27 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
34 …operations (uOps) dispatched to each of the 4 FPU execution pipelines. This event reflects how bus…
/freebsd-src/sys/powerpc/powerpc/
H A Dfpu.c33 * $NetBSD: fpu.c,v 1.5 2001/07/22 11:29:46 wiz Exp $
41 #include <machine/fpu.h>
111 * Save the thread's FPU CPU number, and set the CPU's current in enable_fpu()
112 * FPU thread in enable_fpu()
118 * Enable the FPU for when the thread returns from the exception. in enable_fpu()
119 * If this is the first time the FPU has been used by the thread, in enable_fpu()
120 * initialise the FPU registers and FPSCR to 0, and set the flag in enable_fpu()
121 * to indicate that the FPU is in use. in enable_fpu()
146 * of the saved FPSCR are to be loaded from the FPU reg). in enable_fpu()
199 * Save fpu state without dropping ownership. This will only save state if
[all …]
/freebsd-src/sys/arm/arm/
H A Dvfp.c67 * About .fpu directives in this file...
69 * We should need simply .fpu vfpv3, but clang 3.5 has a quirk where setting
74 * indicating they want to completely disable the ability to use .fpu and
77 * syntax such as .push fpu=vfpv3; ...; .pop fpu; and that would be ideal for
80 * For gcc, each .fpu directive completely overrides the prior directive, unlike
85 __asm __volatile(" .fpu vfpv2\n .fpu vfpv3\n" \
90 __asm __volatile(" .fpu vfpv2\n .fpu vfpv3\n" \
318 " .fpu vfpv2\n" in vfp_restore()
319 " .fpu vfpv3\n" in vfp_restore()
354 " .fpu vfpv2\n" in vfp_store()
[all …]
/freebsd-src/sys/amd64/include/
H A Dpcb.h42 #include <machine/fpu.h>
81 #define PCB_KERNFPU 0x0004 /* kernel uses fpu */
82 #define PCB_FPUINITDONE 0x0008 /* fpu state is initialized */
83 #define PCB_USERFPUINITDONE 0x0010 /* fpu user state is initialized */
86 #define PCB_FPUNOSAVE 0x0080 /* no save area for current FPU ctx */
114 /* fpu context for suspend/resume */
/freebsd-src/sys/powerpc/include/
H A Dpcb.h57 #define PCB_FPU 0x1 /* Process uses FPU */
58 #define PCB_FPREGS 0x2 /* Process had FPU registers initialized */
64 #define PCB_KERN_FPU 0x80 /* Kernel is using FPU/Vector unit */
65 #define PCB_KERN_FPU_NOSAVE 0x100 /* FPU/Vec state not saved for kernel use */
67 struct fpu { struct
82 unsigned int pcb_fpcpu; /* which CPU had our FPU

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