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freebsd-dev/sys/amd64/include
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Bruce Evans 31e30d75d5 Fix fpset*() to not trap if there is a currently unmasked exception. 
Unmasked exceptions (which can be fixed up using fpset*() before they
trap) are very rare, especially on amd64 since SSE exceptions trap
synchronously, but I want to merge the faster amd64 implementations of
fpset*() back to i386 without introducing the bug on i386.

The i386 implementation has always avoided the trap automatically by
changing things using load/store of the FP environment, but this is
very slow.  Most changes only affect the control word, so they can
usually be done much more efficiently, and amd64 has always done this,
but loading the control word can trap.

This version use the fast method only in the usual case where it will
not trap.  This only costs a couple of integer instructions (including
one branch which I haven't optimized carefully yet) in the usual case,
but bloats the inlines a lot.  The inlines were already a bit too large
to handle both the FPU and SSE.
2008-01-11 17:11:32 +00:00
..
pc - Add constants for the different memory types in the SMAP table. 2007-10-28 21:23:49 +00:00
_bus.h Break out the definition of bus_space_{tag,handle}_t and a few other types 2005-04-18 21:45:34 +00:00
_inttypes.h
_limits.h Move MINSIGSTKSZ from <machine/signal.h> to <machine/_limits.h> and rename 2005-08-20 16:44:41 +00:00
_stdint.h <stdint.h> should define WINT_M{AX,IN} independent from whether WCHAR_MIN is 2004-05-18 16:04:57 +00:00
_types.h By popular demand, move __HAVE_ACPI and __PCI_REROUTE_INTERRUPT into 2006-01-09 06:05:57 +00:00
acpica_machdep.h Catch up with ACPI-CA 20070320 import. 2007-03-22 18:16:43 +00:00
apicreg.h JumboMFi386: use bitmapped IPI handler. Update elcr and default mptable 2005-01-21 06:01:20 +00:00
apicvar.h Handle CPUs with APIC IDs higher than 32 (at least one IBM server uses 2007-05-08 22:01:04 +00:00
asm.h Define an END() macro for use in i386 and amd64 assembly code, akin 2007-08-22 04:26:07 +00:00
asmacros.h Define an END() macro for use in i386 and amd64 assembly code, akin 2007-08-22 04:26:07 +00:00
atomic.h Fixed some style bugs (mainly assorted errors in comments, and inconsistent 2006-12-29 15:29:49 +00:00
bus_dma.h Fix $FreeBSD$. 2005-07-22 04:03:25 +00:00
bus.h Merge/sync with i386: various cosmetic tweaks 2006-03-14 00:01:56 +00:00
clock.h Split /dev/nvram driver out of isa/clock.c for i386 and amd64. I have not 2007-10-26 03:23:54 +00:00
cpu.h Clean out sysctl machdep.* related defines. 2006-05-11 17:29:25 +00:00
cpufunc.h Add a knob for disabling/enabling HTT, "machdep.hyperthreading_allowed". 2005-05-13 00:10:56 +00:00
cputypes.h Begin all license/copyright comments with /*- 2005-01-05 20:17:21 +00:00
db_machdep.h Begin all license/copyright comments with /*- 2005-01-05 20:17:21 +00:00
elf.h PR: 2006-10-04 21:37:10 +00:00
endian.h Match i386 rev 1.38 with __cplusplus support 2005-03-11 21:46:01 +00:00
exec.h Use a common multi-inclusion protection, and add such a 2005-02-19 21:16:48 +00:00
float.h Begin all license/copyright comments with /*- 2005-01-05 20:17:21 +00:00
floatingpoint.h The file machine/ieeefp.h needs sys/cdefs.h on amd64 and i386 after my 2005-04-02 17:31:42 +00:00
fpu.h Remove advertising clause from University of California Regent's license, 2004-04-05 21:29:41 +00:00
frame.h Tweak how the MD code calls the fooclock() methods some. Instead of 2005-12-22 22:16:09 +00:00
gdb_machdep.h Change GDB_BUFSZ to be large enough to hold a register dump where each 2007-02-05 21:48:32 +00:00
ieeefp.h Fix fpset*() to not trap if there is a currently unmasked exception. 2008-01-11 17:11:32 +00:00
in_cksum.h Remove diffs to i386 version that came in via the compiler support ifdefs. 2005-03-11 22:16:09 +00:00
intr_machdep.h Minor fixes and tweaks to the x86 interrupt code: 2007-05-08 21:29:14 +00:00
iodev.h Break out the MI part of the /dev/[k]mem and /dev/io drivers into 2004-08-01 11:40:54 +00:00
kdb.h Add kdb_cpu_sync_icache(), intended to synchronize instruction 2007-06-09 21:55:17 +00:00
legacyvar.h Make the PCI code aware of PCI domains (aka PCI segments) so we can 2007-09-30 11:05:18 +00:00
limits.h netchild's mega-patch to isolate compiler dependencies into a central 2005-03-02 21:33:29 +00:00
md_var.h Remove extern struct pcpu __pcpu[]; from the header file and 2007-05-19 05:03:59 +00:00
memdev.h Break out the MI part of the /dev/[k]mem and /dev/io drivers into 2004-08-01 11:40:54 +00:00
metadata.h Begin all license/copyright comments with /*- 2005-01-05 20:17:21 +00:00
minidump.h Introduce minidumps. Full physical memory crash dumps are still available 2006-04-21 04:24:50 +00:00
mp_watchdog.h Add an "options MP_WATCHDOG" to i386. This option allows one of the 2004-08-15 18:02:09 +00:00
mptable.h guard function decls with _KERNEL so user code can include this file 2006-03-01 05:59:56 +00:00
mutex.h Move clock_lock prototype into <machine/clock.h>, where it is more 2006-05-19 18:53:50 +00:00
param.h By popular demand, move __HAVE_ACPI and __PCI_REROUTE_INTERRUPT into 2006-01-09 06:05:57 +00:00
pcb_ext.h
pcb.h MFP4: Linux set_thread_area syscall (aka TLS) support for amd64. 2007-03-30 00:06:21 +00:00
pci_cfgreg.h Adjust the code to probe for the PCI config mechanism to use. 2007-11-28 22:20:08 +00:00
pcpu.h Rework the PCPU_* (MD) interface: 2007-06-04 21:38:48 +00:00
pmap.h Shrink the size of struct vm_page on amd64 and i386 by eliminating 2008-01-06 18:51:04 +00:00
pmc_mdep.h Kernel and hwpmc(4) support for callchain capture. 2007-12-07 08:20:17 +00:00
ppireg.h - Move timerreg.h to <arch>/include and split i8253 specific defines into 2005-05-14 09:10:02 +00:00
proc.h Divorce critical sections from spinlocks. Critical sections as denoted by 2005-04-04 21:53:56 +00:00
profile.h In the userland .mcount(): 2006-10-28 13:12:06 +00:00
psl.h Remove advertising clause from University of California Regent's license, 2004-04-05 21:29:41 +00:00
ptrace.h Begin all license/copyright comments with /*- 2005-01-05 20:17:21 +00:00
reg.h Add support for 8 byte hardware watches in long mode. Kernel hardware 2006-11-17 20:27:01 +00:00
reloc.h Remove advertising clause from University of California Regent's license, 2004-04-05 21:29:41 +00:00
resource.h Begin all license/copyright comments with /*- 2005-01-05 20:17:21 +00:00
runq.h Begin all license/copyright comments with /*- 2005-01-05 20:17:21 +00:00
segments.h MFP4: Linux set_thread_area syscall (aka TLS) support for amd64. 2007-03-30 00:06:21 +00:00
setjmp.h Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
sf_buf.h MFi386: Update alc's copyright notice 2005-02-28 23:38:15 +00:00
sigframe.h
signal.h Move MINSIGSTKSZ from <machine/signal.h> to <machine/_limits.h> and rename 2005-08-20 16:44:41 +00:00
smp.h Fix some entries in the locks static table of witness. 2007-09-20 20:38:43 +00:00
specialreg.h Recognize architectural support for 1GB virtual pages. 2007-12-08 21:13:01 +00:00
stack.h Break out stack(9) from ddb(4): 2007-12-02 20:40:35 +00:00
stdarg.h Use __builtin_va_start instead of __builtin_stdarg_start. GCC4 obsoletes 2006-09-21 01:37:02 +00:00
sysarch.h Implement 32-bit compatable fsbase/gsbase methods so that we can run 2005-04-14 16:57:58 +00:00
timerreg.h Change the spkr_set_pitch() function to a macro to fix low level profiling. 2005-05-28 13:40:27 +00:00
trap.h MFi386: The SIGFPE macros were moved to signal.h (FPE_INTOVF etc) 2006-03-14 00:01:22 +00:00
tss.h Show that I can actually count. 2005-04-15 18:39:31 +00:00
ucontext.h
varargs.h Remove diffs to i386 version that came in via the compiler support ifdefs. 2005-03-11 22:16:09 +00:00
vmparam.h Add configuration knobs for the superpage reservation system. Initially, 2007-12-27 16:45:39 +00:00