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84f3fb7a2a
linux/arch/m68k/kernel
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Greg Ungerer 84f3fb7a2a m68k: handle presence of 64bit mul/div instructions cleanly 
The traditional 68000 processors and the newer reduced instruction set
ColdFire processors do not support the 32*32->64 multiply or the 64/32->32
divide instructions. This is not a difference based on the presence of
a hardware MMU or not.

Create a new config symbol to mark that a CPU type doesn't support the
longer multiply/divide instructions. Use this then as a basis for using
the fast 64bit based divide (in div64.h) and for linking in the extra
libgcc functions that may be required (mulsi3, divsi3, etc).

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-12-24 21:47:57 +10:00
..
.gitignore
asm-offsets.c m68k: remove thread_info struct from thread struct 2011-12-24 21:47:56 +10:00
dma_mm.c m68k: Add export.h to the m68k specific files as required 2011-10-31 19:30:59 -04:00
dma_no.c m68k: Add export.h to the m68k specific files as required 2011-10-31 19:30:59 -04:00
dma.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
entry_mm.S m68k: remove thread_info struct from thread struct 2011-12-24 21:47:56 +10:00
entry_no.S m68knommu: no need to set register marker on traps 2011-12-24 21:47:57 +10:00
entry.S m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
head.S Fix common misspellings 2011-03-31 11:26:23 -03:00
init_task.c m68k: merge the init_task code for mmu and non-mmu targets 2011-12-24 21:47:56 +10:00
ints.c m68k/irq: Remove obsolete support for user vector interrupt fixups 2011-11-08 22:35:52 +01:00
irq.c m68k: Revive reporting of spurious interrupts 2011-07-25 11:20:41 +10:00
m68k_ksyms.c m68k: handle presence of 64bit mul/div instructions cleanly 2011-12-24 21:47:57 +10:00
Makefile m68k: merge the init_task code for mmu and non-mmu targets 2011-12-24 21:47:56 +10:00
module.c m68k: merge the non-mmu and mmu versions of module.c 2011-07-25 11:20:40 +10:00
module.lds
process_mm.c m68k: merge the init_task code for mmu and non-mmu targets 2011-12-24 21:47:56 +10:00
process_no.c m68k, exec: remove redundant set_fs(USER_DS) 2011-07-25 20:57:12 -07:00
process.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
ptrace_mm.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
ptrace_no.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
ptrace.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
setup_mm.c m68k: support configure time command line for MMU m68k 2011-12-24 21:47:57 +10:00
setup_no.c m68knommu: move definition of mach_gettod to where it is used 2011-12-24 21:47:57 +10:00
setup.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
signal_mm.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
signal_no.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
signal.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
sun3-head.S
sys_m68k.c m68k: merge the mmu and non-mmu versions of sys_m68k.c 2011-05-24 15:17:21 +10:00
syscalltable.S m68k: Wire up process_vm_{read,write}v 2011-12-06 20:37:58 +01:00
time_mm.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
time_no.c m68knommu: move definition of mach_gettod to where it is used 2011-12-24 21:47:57 +10:00
time.c m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
traps.c m68k: merge the mmu and non-mmu traps.c files 2011-10-18 14:22:25 +10:00
vectors.c m68k: move hardware vector setting from traps.c to its own file 2011-10-18 14:22:25 +10:00
vmlinux-std.lds m68k: print memory layout info in boot log 2011-12-24 21:47:57 +10:00
vmlinux-sun3.lds m68k: print memory layout info in boot log 2011-12-24 21:47:57 +10:00
vmlinux.lds_mm.S m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00
vmlinux.lds_no.S m68k: Finally remove leftover markers sections 2011-10-24 21:00:34 +02:00
vmlinux.lds.S m68k: merge m68k and m68knommu arch directories 2011-03-25 14:05:13 +10:00