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/linux-4.1.27/Documentation/arm/nwfpe/
DREADME.FPE1 The following describes the current state of the NetWinder's floating point
4 In the following nomenclature is used to describe the floating point
16 LDF/STF - load and store floating
24 LFM/SFM - load and store multiple floating
35 for each floating point register into the memory location given in the
45 FLT{cond}<S,D,E>{P,M,Z} Fn, Rd Convert integer to floating point
46 FIX{cond}{P,M,Z} Rd, Fn Convert floating point to integer
47 WFS{cond} Rd Write floating point status register
48 RFS{cond} Rd Read floating point status register
49 WFC{cond} Rd Write floating point control register
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DTODO20 hardware, but are handled by the floating point support code. They should
55 [NOTE: pulled out from some docs on ARM floating point, specifically
58 The floating point control register (FPCR) may only be present in some
60 specific manner, for example to disable the floating point system. The user
DREADME7 working version of all the floating point instructions the compiler
22 The floating point operations are based on SoftFloat Release 2, by
23 John Hauser. SoftFloat is a software implementation of floating-point
DNOTES6 will point it out. The ARM calling conventions require floating point
/linux-4.1.27/arch/arm/nwfpe/
Dsoftfloat-specialize78 Returns 1 if the single-precision floating-point value `a' is a NaN;
91 Returns 1 if the single-precision floating-point value `a' is a signaling
104 Returns the result of converting the single-precision floating-point NaN
124 precision floating-point format.
136 Takes two single-precision floating-point values `a' and `b', one of which
170 Returns 1 if the double-precision floating-point value `a' is a NaN;
183 Returns 1 if the double-precision floating-point value `a' is a signaling
198 Returns the result of converting the double-precision floating-point NaN
218 precision floating-point format.
233 Takes two double-precision floating-point values `a' and `b', one of which
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Dfpa11.inl24 /* Read and write floating point status register */
38 /* Read and write floating point control register */
DChangeLog20 floating point registers. Therefore, any changes to the
59 task. This should happen on the first floating point exception
/linux-4.1.27/Documentation/virtual/kvm/devices/
Ds390_flic.txt1 FLIC (floating interrupt controller)
4 FLIC handles floating (non per-cpu) interrupts, i.e. I/O, service and some
13 - purge all pending floating interrupts (KVM_DEV_FLIC_CLEAR_IRQS)
27 Copies all floating interrupts into a buffer provided by userspace.
40 Simply deletes all elements from the list of currently pending floating
/linux-4.1.27/arch/m68k/fpsp040/
Dx_ovfl.S6 | Overflow occurs when a floating-point intermediate result is
7 | too large to be represented in a floating-point data register,
8 | or when storing to memory, the contents of a floating-point
Dslog2.S13 | OUTPUT: log_10(X) or log_2(X) returned in floating-point
34 | Notes: Default means round-to-nearest mode, no floating-point
49 | Notes: Default means round-to-nearest mode, no floating-point
63 | Notes: Default means round-to-nearest mode, no floating-point
78 | Notes: Default means round-to-nearest mode, no floating-point
Dsto_res.S7 | correct floating-point destination register. fp0 and fp1
16 | Modifies: destination floating point register
Dsacos.S11 | Output: The value arccos(X) returned in floating-point register Fp0.
Dsint.S13 | number X in the ETEMP space in the floating-point
18 | number X in the ETEMP space in the floating-point
Dx_unimp.S7 | Invoked when the user program encounters a floating-point
Dsasin.S11 | Output: The value arcsin(X) returned in floating-point register Fp0.
Dsatanh.S12 | Output: The value arctanh(X) returned in floating-point register Fp0.
Dscosh.S11 | Output: The value cosh(X) returned in floating-point register Fp0.
Dsetox.S16 | exp(X) or exp(X)-1 returned in floating-point register fp0.
65 | To avoid the use of floating-point comparisons, a
489 fmovel %d0,%fp0 | ...convert to floating-format
590 fmovel %d0,%fp0 | ...convert to floating-format
656 fmovel %d0,%fp0 | ...convert to floating-format
Dssinh.S11 | Output: The value sinh(X) returned in floating-point register Fp0.
Dx_fline.S7 | floating point instructions. If so, let fpsp_unimp handle it.
Dstanh.S11 | Output: The value tanh(X) returned in floating-point register Fp0.
Dsgetem.S17 | the floating-point save stack.
Dsrem_mod.S4 | The entry point sMOD computes the floating point MOD of the
5 | input values X and Y. The entry point sREM computes the floating
Dsatan.S11 | Output: Arctan(X) returned in floating-point register Fp0.
Dslogn.S12 | Output: log(X) or log(1+X) returned in floating-point register Fp0.
Dstan.S11 | Output: The value tan(X) returned in floating-point register Fp0.
Ddecbin.S9 | Output: Exact floating-point representation of the packed bcd value.
Dres_func.S602 | operations which are not restorable into the floating-point
/linux-4.1.27/arch/cris/arch-v32/mach-fs/
DKconfig97 as inputs, although floating inputs isn't good.
119 as inputs, although floating inputs isn't good.
141 as inputs, although floating inputs isn't good.
163 as inputs, although floating inputs isn't good.
185 as inputs, although floating inputs isn't good.
204 floating inputs isn't good.
/linux-4.1.27/arch/cris/arch-v32/mach-a3/
DKconfig59 as inputs, although floating inputs isn't good.
79 as inputs, although floating inputs isn't good.
99 as inputs, although floating inputs isn't good.
/linux-4.1.27/Documentation/s390/
Dkvm.txt63 This ioctl is used to submit a floating interrupt for a virtual machine.
66 submitted as floating interrupts. The following interrupts are not considered
67 to be useful as floating interrupts, and a call to inject them will result in
69 floating interrupts are:
DDebugging390.txt62 16 64 bit floating point registers (fp0-fp15 ) IEEE & HFP floating
530 The remaining floating points
547 4) Only 4 of the floating point registers are used for
550 However with IEEE floating point emulation under linux on the
686 we now use f4 & f6 for floating point arguments on 64 bit.
1590 info registers: displays registers other than floating point.
1591 info all-registers: displays floating points as well.
/linux-4.1.27/Documentation/ABI/testing/
Dsysfs-bus-i2c-devices-hm63525 Description: Reports the current heading from the compass as a floating
Dsysfs-bus-event_source-devices-events84 A string representing a floating point value expressed in
93 This is provided to avoid performing floating point arithmetic
Dsysfs-bus-iio459 three_state: left floating.
/linux-4.1.27/Documentation/arm/
Dmem_alignment19 floating point emulation that works about the same way). Fix your code
39 slow (think about the floating point emulator) and
D00-INDEX44 - NWFPE floating point emulator documentation
/linux-4.1.27/arch/m68k/
DKconfig.cpu301 At some point in the future, this will cause floating-point math
303 floating-point math coprocessor. Thrill-seekers and chronically
322 This option prevents any floating-point instructions from being
324 floating point context anymore during task switches, so this
325 kernel will only be usable on machines without a floating-point
327 needs to be executed whether a floating-point instruction in the
/linux-4.1.27/arch/cris/arch-v32/
DKconfig201 as inputs, although floating inputs isn't good.
223 as inputs, although floating inputs isn't good.
245 as inputs, although floating inputs isn't good.
267 as inputs, although floating inputs isn't good.
289 as inputs, although floating inputs isn't good.
/linux-4.1.27/Documentation/devicetree/bindings/watchdog/
Dgpio-wdt.txt10 left floating or connected to a three-state buffer.
/linux-4.1.27/arch/alpha/
DKconfig.debug38 This option is required for IEEE compliant floating point arithmetic
/linux-4.1.27/Documentation/devicetree/bindings/sound/
Drt5677.txt32 0 - floating (reset value)
/linux-4.1.27/arch/s390/kernel/
Dbase.S107 larl %r4,.Lfpctl # Restore floating point ctl register
/linux-4.1.27/arch/sh/
DKconfig.cpu30 bool "Flush floating point denorms to zero"
/linux-4.1.27/arch/powerpc/
DKconfig331 a floating-point unit and therefore do not implement the
332 floating-point instructions in the PowerPC instruction set. If you
333 say Y here, the kernel will include code to emulate a floating-point
334 unit, which will allow programs that use floating-point
347 bool "Emulate all the floating point instructions"
350 all the floating point instructions. If your SoC doesn't have
357 SoC, but some floating point instructions are not implemented by that.
/linux-4.1.27/arch/m68k/ifpsp060/
Dfplsp.doc110 this exception using implemented floating-point instructions.
112 floating-point Operand Error exception, then the library routine
DTEST.DOC147 The floating-point unit test has 3 entry points which will require
Dfskeleton.S228 | The execution of the instruction then proceeds with an enabled floating-point
/linux-4.1.27/Documentation/ko_KR/
DHOWTO56 지원되지 않는다. 임의의 long long 나누기나 floating point는 지원되지 않는다.
/linux-4.1.27/arch/nios2/platform/
DKconfig.platform77 bool "Custom floating point instr support"
/linux-4.1.27/arch/x86/math-emu/
DREADME48 For more information on the emulator and on floating point topics, see
154 an 80486DX. A 80486DX will allow some floating point instructions to
164 The speed of floating point computation with the emulator will depend
/linux-4.1.27/drivers/net/ethernet/intel/i40e/
Di40e_prototype.h129 u16 veb_seid, u16 *switch_id, bool *floating,
Di40e_common.c1958 bool *floating, u16 *statistic_index, in i40e_aq_get_veb_parameters() argument
1987 if (floating) { in i40e_aq_get_veb_parameters()
1990 *floating = true; in i40e_aq_get_veb_parameters()
1992 *floating = false; in i40e_aq_get_veb_parameters()
/linux-4.1.27/Documentation/
Dpreempt-locking.txt44 if the kernel is executing a floating-point instruction and is then preempted.
DSubmittingDrivers77 endian, people do not all have floating point and you
Dcrc32.txt21 familiar with the IEEE 754 floating-point format, it's the same idea.)
DHOWTO40 divisions and floating point are not allowed. It can sometimes be
Dkernel-parameters.txt2361 nofxsr [BUGS=X86-32] Disables x86 floating point extended
2363 legacy floating-point registers on task switch.
2369 enabling legacy floating-point and sse state.
/linux-4.1.27/arch/arm/
DKconfig2012 Say Y to include the NWFPE floating point emulator in the kernel.
2014 support floating point hardware so you need to say Y here even if
2015 your machine has an FPA or floating point co-processor podule.
2024 Say Y to include 80-bit support in the kernel floating-point
2028 floating point emulator without any good reason.
2036 Say Y here to include the FAST floating point emulator in the kernel.
2047 bool "VFP-format floating point maths"
/linux-4.1.27/Documentation/devicetree/bindings/pinctrl/
Dpinctrl-bindings.txt178 bias-high-impedance - high impedance mode ("third-state", "floating")
/linux-4.1.27/Documentation/power/
Dpower_supply_class.txt212 for kernel at all, as it would require floating point calculation to deal
/linux-4.1.27/arch/cris/arch-v10/
DKconfig334 as inputs, although floating inputs isn't good.
/linux-4.1.27/arch/arm/mm/
DKconfig212 with an addition of a floating-point unit.
243 embedded trace macrocell, and a floating-point unit.
/linux-4.1.27/firmware/keyspan_pda/
Dkeyspan_pda.S335 ;; now presence pin is floating, simulating disconnect. wait 0.5s
Dxircom_pgs.S373 ;; now presence pin is floating, simulating disconnect. wait 0.5s
/linux-4.1.27/Documentation/cdrom/
Dide-cd25 - Playing audio tracks. Most of the CDROM player programs floating
/linux-4.1.27/arch/m68k/ifpsp060/src/
Dfplsp.S6719 # To avoid the use of floating-point comparisons, a #
7129 fmov.l %d1,%fp0 # convert to floating-format
7226 fmov.l %d1,%fp0 # convert to floating-format
7293 fmov.l %d1,%fp0 # convert to floating-format
8670 # Notes: Default means round-to-nearest mode, no floating-point #
8684 # Notes: Default means round-to-nearest mode, no floating-point #
8697 # Notes: Default means round-to-nearest mode, no floating-point #
8711 # Notes: Default means round-to-nearest mode, no floating-point #
/linux-4.1.27/arch/mips/
DKconfig2648 When this is enabled, the kernel will support use of 64-bit floating
2654 will require 64-bit floating point, you may wish to reduce the size
/linux-4.1.27/Documentation/virtual/kvm/
Dapi.txt563 Reads the floating point state from the vcpu.
589 Writes the floating point state to the vcpu.
2346 Allows to inject an interrupt to the guest. Interrupts can be floating
/linux-4.1.27/arch/x86/
DKconfig1507 Linux can emulate a math coprocessor (used for floating point
2132 3) switch on floating point emulation in the kernel and pass