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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Sat, 5 Jun 2010 15:59:59 +0000 (UTC)
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Subject: cvs commit: src/sys/amd64/acpica acpi_wakeup.c src/sys/amd64/amd64
 cpu_switch.S fpu.c machdep.c mp_machdep.c trap.c vm_machdep.c
 src/sys/amd64/ia32 ia32_reg.c src/sys/amd64/include fpu.h pcb.h
 src/sys/i386/i386 machdep.c ptrace_machdep.c swtch.s trap.c ...
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kib         2010-06-05 15:59:59 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/acpica     acpi_wakeup.c 
    sys/amd64/amd64      cpu_switch.S fpu.c machdep.c mp_machdep.c 
                         trap.c vm_machdep.c 
    sys/amd64/ia32       ia32_reg.c 
    sys/amd64/include    fpu.h pcb.h 
    sys/i386/i386        machdep.c ptrace_machdep.c swtch.s trap.c 
                         vm_machdep.c 
    sys/i386/include     npx.h pcb.h 
    sys/i386/isa         npx.c 
    sys/i386/linux       linux_ptrace.c 
    sys/pc98/pc98        machdep.c 
  Log:
  SVN rev 208833 on 2010-06-05 15:59:59Z by kib
  
  Introduce the x86 kernel interfaces to allow kernel code to use
  FPU/SSE hardware. Caller should provide a save area that is chained
  into the stack of the areas; pcb save_area for usermode FPU state is
  on top. The pcb now contains a pointer to the current FPU saved area,
  used during FPUDNA handling and context switches.  There is also a
  facility to allow the kernel thread to use pcb save_area.
  
  Change the dreaded warnings "npxdna in kernel mode!" into the panics
  when FPU usage is not registered.
  
  KPI discussed with:     fabient
  Tested by:    pho, fabient
  Hardware provided by:   Sentex Communications
  MFC after:    1 month
  
  Revision  Changes    Path
  1.29      +1 -1      src/sys/amd64/acpica/acpi_wakeup.c
  1.170     +3 -3      src/sys/amd64/amd64/cpu_switch.S
  1.166     +133 -9    src/sys/amd64/amd64/fpu.c
  1.718     +8 -5      src/sys/amd64/amd64/machdep.c
  1.314     +1 -1      src/sys/amd64/amd64/mp_machdep.c
  1.345     +22 -8     src/sys/amd64/amd64/trap.c
  1.269     +8 -3      src/sys/amd64/amd64/vm_machdep.c
  1.7       +2 -2      src/sys/amd64/ia32/ia32_reg.c
  1.36      +24 -0     src/sys/amd64/include/fpu.h
  1.73      +4 -1      src/sys/amd64/include/pcb.h
  1.700     +9 -7      src/sys/i386/i386/machdep.c
  1.7       +1 -1      src/sys/i386/i386/ptrace_machdep.c
  1.159     +3 -4      src/sys/i386/i386/swtch.s
  1.330     +23 -9     src/sys/i386/i386/trap.c
  1.301     +9 -4      src/sys/i386/i386/vm_machdep.c
  1.34      +21 -0     src/sys/i386/include/npx.h
  1.58      +4 -1      src/sys/i386/include/pcb.h
  1.181     +158 -19   src/sys/i386/isa/npx.c
  1.19      +2 -2      src/sys/i386/linux/linux_ptrace.c
  1.422     +4 -4      src/sys/pc98/pc98/machdep.c