| /linux-4.1.27/arch/sparc/kernel/ |
| D | cpu.c | 59 #define FPU(ver, _name) \ macro
74 FPU(0, "Fujitsu MB86910 or Weitek WTL1164/5"),
75 FPU(1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"),
76 FPU(2, "LSI Logic L64802 or Texas Instruments ACT8847"),
78 FPU(3, "Weitek WTL3170/2"),
80 FPU(4, "Lsi Logic/Meiko L64804 or compatible"),
81 FPU(-1, NULL)
98 FPU(0, "ROSS HyperSparc combined IU/FPU"),
99 FPU(1, "Lsi Logic L64814"),
100 FPU(2, "Texas Instruments TMS390-C602A"),
[all …]
|
| /linux-4.1.27/arch/x86/math-emu/ |
| D | README | 2 | wm-FPU-emu an FPU emulator for 80386 and 80486SX microprocessors. |
25 wm-FPU-emu is an FPU emulator for Linux. It is derived from wm-emu387
31 My target FPU for wm-FPU-emu is that described in the Intel486
33 facets of the functioning of the FPU are not well covered in the
40 wm-FPU-emu does not implement all of the behaviour of the 80486 FPU,
56 ----------------------- Internals of wm-FPU-emu -----------------------
82 emulate each FPU instruction to completion without interruption.
99 ----------------------- Limitations of wm-FPU-emu -----------------------
101 There are a number of differences between the current wm-FPU-emu
102 (version 2.01) and the 80486 FPU (apart from bugs). The differences
[all …]
|
| /linux-4.1.27/arch/sh/ |
| D | Kconfig.cpu | 21 prompt "FPU support"
25 have FPU units (ie, SH77xx).
27 This option must be set in order to enable the FPU.
35 prompt "FPU emulation support"
38 Selecting this option will enable support for software FPU emulation.
|
| /linux-4.1.27/arch/mips/kvm/ |
| D | 00README.txt | 29 (5) Use Host FPU
30 Currently KVM/MIPS emulates a 24K CPU without a FPU.
|
| /linux-4.1.27/arch/mn10300/ |
| D | Kconfig | 122 config FPU config
123 bool "FPU present"
128 bool "Save FPU state lazily"
130 depends on FPU && !SMP
132 Enable this to be lazy in the saving of the FPU state to the owning
134 don't use the FPU as only those tasks that use it will pass it
138 This can't be so easily used on SMP as the process that owns the FPU
|
| /linux-4.1.27/arch/mn10300/kernel/ |
| D | fpu-nofpu-low.S | 21 # - handle an exception due to the FPU being disabled
|
| D | fpu-low.S | 131 # - initialise the FPU
160 # - note that an FPU Operational exception might occur during this process
188 # - handle an exception due to the FPU being disabled
|
| /linux-4.1.27/Documentation/ |
| D | preempt-locking.txt | 42 switch. For example, on x86, entering and exiting FPU mode is now a critical
45 Remember, the kernel does not save FPU state except for user tasks. Therefore,
46 upon preemption, the FPU registers will be sold to the lowest bidder. Thus,
49 Note, some FPU functions are already explicitly preempt safe. For example,
|
| D | kernel-parameters.txt | 2359 nofpu [MIPS,SH] Disable hardware FPU at boot time.
|
| /linux-4.1.27/arch/m68k/ifpsp060/ |
| D | fskeleton.S | 208 | the FPU is disabled, and F-Line Illegal instructions. The 060FPSP module
219 | This is the exit point for the 060FPSP when an FPU disabled exception is
222 | the FPU is disabled, and F-Line Illegal instructions. The 060FPSP module
223 | _fpsp_fline() distinguishes between the three and acts appropriately. FPU disabled
226 | The sample code below enables the FPU, sets the PC field in the exception stack
|
| /linux-4.1.27/arch/mips/include/asm/fw/arc/ |
| D | hinv.h | 31 FPU, enumerator
|
| /linux-4.1.27/arch/metag/ |
| D | Kconfig | 174 bool "FPU Support"
178 This option allows processes to use FPU hardware available with this
179 CPU. If this option is not enabled FPU registers will not be saved
|
| /linux-4.1.27/arch/arc/ |
| D | Kconfig | 296 bool "Enable FPU state persistence across context switch"
301 Note that ARC FPU is overly simplistic, unlike say x86, which has
303 based on actual usage of FPU by a task. Thus our implemn does
|
| /linux-4.1.27/arch/mn10300/include/asm/ |
| D | frame.inc | 48 # disable the FPU inside the kernel
|
| /linux-4.1.27/arch/mips/dec/ |
| D | int-handler.S | 143 bnez t2,fpu # handle FPU immediately
|
| /linux-4.1.27/arch/m68k/ |
| D | Kconfig | 17 select FPU if MMU
|
| D | Kconfig.cpu | 410 config FPU config
|
| D | Kconfig.machine | 118 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
|
| /linux-4.1.27/arch/c6x/ |
| D | Kconfig | 24 config FPU config
|
| /linux-4.1.27/arch/x86/kernel/ |
| D | head_32.S | 359 andl $~1,%edx # Ignore CPUID.FPU
360 jz enable_paging # No flags or only CPUID.FPU = no CR4
|
| /linux-4.1.27/arch/m68k/fpsp040/ |
| D | fpsp.h | 28 | | FPU fsave area |
60 | if the FPU state after the exception is idle.
|
| D | gen_except.S | 222 | unimplemented, no FPU restore is necessary. If it was
|
| /linux-4.1.27/arch/m68k/ifpsp060/src/ |
| D | pfpsp.S | 960 # The `060 FPU multiplier hardware is such that if the result of a
1380 # restore exc state (SNAN||OPERR||OVFL||UNFL||DZ||INEX) into the FPU;
1958 # restore exc state (SNAN||OPERR||OVFL||UNFL||DZ||INEX) into the FPU;
2393 # If FPU disabled: #
2394 # - The system stack is changed to an FPU disabled stack frame #
2415 # FPU before exiting. In either the enabled or disabled cases, we #
2459 btst &0x1,%d0 # is FPU disabled?
2943 # The FPU is disabled and so we should really have taken the "Line
3830 # can occur because then FPU is disabled or the instruction is to be #
3839 # check to see if the FPU is disabled. if so, jump to the OS entry
|
| D | fpsp.S | 961 # The `060 FPU multiplier hardware is such that if the result of a
1381 # restore exc state (SNAN||OPERR||OVFL||UNFL||DZ||INEX) into the FPU;
1959 # restore exc state (SNAN||OPERR||OVFL||UNFL||DZ||INEX) into the FPU;
2394 # If FPU disabled: #
2395 # - The system stack is changed to an FPU disabled stack frame #
2416 # FPU before exiting. In either the enabled or disabled cases, we #
2460 btst &0x1,%d0 # is FPU disabled?
2944 # The FPU is disabled and so we should really have taken the "Line
3829 # (1) FPU unimplemented instruction (6 word stack frame) #
3830 # (2) FPU disabled (8 word stack frame) #
[all …]
|
| /linux-4.1.27/Documentation/parisc/ |
| D | registers | 13 CR10 (CCR) lazy FPU saving*
|
| /linux-4.1.27/arch/nios2/ |
| D | Kconfig | 35 config FPU config
|
| /linux-4.1.27/arch/x86/kvm/ |
| D | cpuid.c | 301 F(FPU) | F(VME) | F(DE) | F(PSE) | in __do_cpuid_ent()
311 F(FPU) | F(VME) | F(DE) | F(PSE) | in __do_cpuid_ent()
|
| /linux-4.1.27/arch/avr32/ |
| D | Kconfig | 232 # FPU emulation goes here
|
| /linux-4.1.27/drivers/zorro/ |
| D | zorro.ids | 127 1000 DKM 1202 [FPU and RAM Expansion]
353 0100 A1200 [FPU and RAM Expansion]
|
| /linux-4.1.27/arch/powerpc/ |
| D | Kconfig | 338 such as fsqrt on cores that do have an FPU but do not implement
351 a FPU, you should select this.
354 bool "Just emulate the FPU unimplemented instructions"
356 Select this if you know there does have a hardware FPU on your
|
| /linux-4.1.27/arch/m68k/math-emu/ |
| D | fp_scan.S | 61 | FPDATA - base of emulated FPU registers
|
| /linux-4.1.27/Documentation/virtual/kvm/ |
| D | api.txt | 2050 MIPS FPU registers (see KVM_REG_MIPS_FPR_{32,64}() above) have the following
2052 always accessed according to the current guest FPU mode (Status.FR and
2054 if the guest FPU mode is changed. MIPS SIMD Architecture (MSA) vector
2056 overlap the FPU registers:
2057 0x7020 0000 0003 00 <0:3> <reg:5> (32-bit FPU registers)
2058 0x7030 0000 0003 00 <0:3> <reg:5> (64-bit FPU registers)
2061 MIPS FPU control registers (see KVM_REG_MIPS_FCR_{IR,CSR} above) have the
3461 allows the Config1.FP bit to be set to enable the FPU in the guest. Once this is
3463 (depending on the current guest FPU register mode), and the Status.FR,
3465 depending on them being supported by the FPU.
|
| /linux-4.1.27/Documentation/ide/ |
| D | ChangeLog.ide-tape.1995-2002 | 127 * Ver 1.6 Aug 16 96 Fixed FPU usage in the driver.
|
| /linux-4.1.27/arch/unicore32/kernel/ |
| D | entry.S | 369 cand.a ip, #0x08000000 @ FPU execption traps?
|
| /linux-4.1.27/Documentation/s390/ |
| D | Debugging390.txt | 136 20 20 Fixed point overflow mask if 1=FPU exceptions for this event
139 21 21 Decimal overflow mask if 1=FPU exceptions for this event occur
142 22 22 Exponent underflow mask if 1=FPU exceptions for this event occur
145 23 23 Significance Mask if 1=FPU exceptions for this event occur
|
| /linux-4.1.27/arch/mips/ |
| D | Kconfig | 2143 bool "Dynamic FPU affinity for FP-intensive threads"
2652 size and complexity of the compiled FPU emulator. Thus if you are
|
| /linux-4.1.27/arch/blackfin/ |
| D | Kconfig | 4 config FPU config
|
| /linux-4.1.27/ |
| D | CREDITS | 2482 D: Author of the FPU emulator.
|
| D | MAINTAINERS | 4094 FPU EMULATOR
|