freebsd-dev/sys/i386
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 Use the same policy for rejecting / not-reject ACPI tables with incorrect 2010-03-19 12:43:18 +00:00
bios Introduce the new kernel sub-tree x86 which should contain all the code 2010-02-25 14:13:39 +00:00
compile
conf Change USB_DEBUG to #ifdef and allow it to be turned off. Previously this had 2010-04-22 21:31:34 +00:00
i386 Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
ibcs2 Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
include Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
isa Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
linux Introduce the x86 kernel interfaces to allow kernel code to use 2010-06-05 15:59:59 +00:00
pci number of cleanups in i386 and amd64 pci md code 2009-09-24 07:11:23 +00:00
svr4 Change some movl's to mov's. Newer GAS no longer accept 'movl' instructions 2009-01-31 11:37:21 +00:00
xbox Update d_mmap() to accept vm_ooffset_t and vm_memattr_t. 2009-12-29 21:51:28 +00:00
xen Eliminate a stale comment. 2010-05-31 06:06:10 +00:00
Makefile Update entries for building tags. 2007-05-13 18:21:54 +00:00