Home
last modified time | relevance | path

Searched refs:FPU (Results 1 – 25 of 44) sorted by relevance

12

/linux/arch/sparc/kernel/
H A Dcpu.c60 #define FPU(ver, _name) \ macro
75 FPU(0, "Fujitsu MB86910 or Weitek WTL1164/5"),
76 FPU(1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"),
77 FPU(2, "LSI Logic L64802 or Texas Instruments ACT8847"),
79 FPU(3, "Weitek WTL3170/2"),
81 FPU(4, "Lsi Logic/Meiko L64804 or compatible"),
82 FPU(-1, NULL)
99 FPU(0, "ROSS HyperSparc combined IU/FPU"),
100 FPU(1, "Lsi Logic L64814"),
101 FPU(2, "Texas Instruments TMS390-C602A"),
[all …]
/linux/arch/x86/math-emu/
H A DREADME2 | 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/arch/sh/
H A DKconfig.cpu21 prompt "FPU support"
25 have FPU units (ie, SH77xx).
27 This option must be set in order to enable the FPU.
31 prompt "FPU emulation support"
34 Selecting this option will enable support for software FPU emulation.
/linux/arch/m68k/
H A DKconfig.cpu61 select FPU
72 select FPU
82 select FPU
93 select FPU
272 select FPU if MMU
283 select FPU if MMU
328 depends on M68KCLASSIC && FPU
455 config FPU config
/linux/Documentation/locking/
H A Dpreempt-locking.rst46 switch. For example, on x86, entering and exiting FPU mode is now a critical
49 Remember, the kernel does not save FPU state except for user tasks. Therefore,
50 upon preemption, the FPU registers will be sold to the lowest bidder. Thus,
53 Note, some FPU functions are already explicitly preempt safe. For example,
/linux/arch/m68k/ifpsp060/
H A Dfskeleton.S208 | 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/Documentation/translations/zh_CN/kernel-hacking/
H A Dhacking.rst116 FPU上下文不会被保存；即使在用户上下文中，FPU状态也可能与当前进程不一致：
117 您会弄乱某些用户进程的FPU状态。如果真的要这样做，就必须显式地保存/恢复
118 完整的FPU状态（并避免上下文切换）。这通常不是个好主意；请优先用定点算法。
/linux/tools/testing/selftests/powerpc/math/
H A Dfpu_asm.S132 # On starting will (atomically) decrement not_ready as a signal that the FPU
133 # has been loaded with darray. Will proceed to check the validity of the FPU
/linux/Documentation/arch/arm/stm32/
H A Dstm32f429-overview.rst11 - ARM Cortex-M4 up to 180MHz with FPU
/linux/arch/x86/kernel/
H A Dhead_32.S188 andl $~1,%edx # Ignore CPUID.FPU
189 jz .Lenable_paging # No flags or only CPUID.FPU = no CR4
/linux/arch/mips/include/asm/fw/arc/
H A Dhinv.h32 FPU, enumerator
/linux/Documentation/translations/zh_CN/arch/parisc/
H A Dregisters.rst28 CR10 (CCR) FPU延迟保存*
/linux/Documentation/translations/zh_TW/arch/parisc/
H A Dregisters.rst28 CR10 (CCR) FPU延遲保存*
/linux/arch/mips/dec/
H A Dint-handler.S144 bnez t2,fpu # handle FPU immediately
/linux/arch/openrisc/
H A DKconfig191 config FPU config
192 bool "FPU support"
/linux/arch/powerpc/platforms/
H A DKconfig.cputype302 bool "Support for Floating Point Unit (FPU)" if PPC_MPC832x
307 Most 6xx have an FPU but e300c2 core (mpc832x) don't have
308 an FPU, so when building an embedded kernel for that target
309 you can disable FPU support.
/linux/arch/arc/
H A DKconfig328 bool "Enable FPU state persistence across context switch"
330 ARCompact FPU has internal registers to assist with Double precision
371 bool "Reg Pair ACCL:ACCH (FPU and/or MPY > 6 and/or DSP)"
/linux/arch/m68k/fpsp040/
H A Dfpsp.h28 | | FPU fsave area |
60 | if the FPU state after the exception is idle.
/linux/arch/m68k/ifpsp060/src/
H A Dpfpsp.S960 # 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
/linux/arch/nios2/
H A DKconfig43 config FPU config
/linux/Documentation/arch/parisc/
H A Dregisters.rst18 CR10 (CCR) lazy FPU saving*
/linux/drivers/zorro/
H A Dzorro.ids127 1000 DKM 1202 [FPU and RAM Expansion]
353 0100 A1200 [FPU and RAM Expansion]
/linux/arch/csky/
H A DKconfig307 bool "CPU has FPU coprocessor"
/linux/Documentation/translations/zh_TW/arch/loongarch/
H A Dintroduction.rst58 當系統中存在FPU時，LoongArch有32個浮點寄存器（ ``$f0`` ~ ``$f31`` ）。在LA64
/linux/arch/m68k/math-emu/
H A Dfp_scan.S61 | FPDATA - base of emulated FPU registers

12