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mirror of https://git.FreeBSD.org/src.git synced 2024-12-24 11:29:10 +00:00
freebsd/sys/amd64
Konstantin Belousov 6cf9a08d2c 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
2010-06-05 15:59:59 +00:00
..
acpica Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
amd64 Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
compile
conf Set USB_DEBUG like the other platforms, I had turned it off to test the build 2010-04-25 22:01:32 +00:00
ia32 Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
include Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
linux32 Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
pci
Makefile