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941a057663
freebsd-nq/sys/ia64/include
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Marcel Moolenaar a7b90d80fc Be more careful how we restore interrupts. Don't rewrite most of the 
PSR only to achieve setting PSR.i back to it's previous value. It
makes it impossible to change any of the 30+ other unrelated bits
when done between intr_disable() and intr_restore(). That's bad.

Instead have intr_disable() return 1 when interrupts were previously
enabled and 0 otherwise and only enable interrupts in intr_restore()
when given a non-0 value.

This change specifically disallows using intr_restore() to disable
interrupts. The reason is simple: interrupts only need to be restored
after they are being disabled, which means that intr_restore() is
called with interrupts disabled and we only need to enable them if
they were previously enabled.

This change does not fix any bugs, other than that it bugged me...

Approved by: re@ (blanket)
2003-05-24 21:44:24 +00:00
..
pc use __packed. 2002-09-23 18:54:32 +00:00
_inttypes.h Since printf(3) now supports the `j' conversion specifier, use that 2002-06-30 05:48:03 +00:00
_limits.h sys/sys/limits.h: 2003-05-19 20:29:07 +00:00
_regset.h This file creates register sets based on the runtime specification. 2003-05-15 08:36:03 +00:00
_stdint.h Create a new header <machine/_stdint.h> for storing MD parts of 2002-07-29 17:41:23 +00:00
_types.h - Add vm_paddr_t, a physical address type. This is required for systems 2003-03-25 00:07:06 +00:00
acpica_machdep.h Resolve conflicts arising from the ACPI CA 20020725 import. 2002-07-30 19:35:32 +00:00
asm.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
atomic.h Simplify IA64_CMPXCHG to avoid having braced-groups in expressions. 2002-05-19 20:19:07 +00:00
bootinfo.h Use one of the bi_spare entries for the DIG64 HCDP table address. 2002-12-08 20:32:56 +00:00
bus_memio.h
bus_pio.h
bus.h Revamp the newbus functions: 2003-04-29 09:50:03 +00:00
clock.h Replace the hardcoding of 255 as the clock interrupt vector with 2003-01-06 01:39:25 +00:00
clockvar.h
cpu.h Consistently us the same metric to differentiate between kernel mode 2003-05-24 21:16:19 +00:00
cpufunc.h Be more careful how we restore interrupts. Don't rewrite most of the 2003-05-24 21:44:24 +00:00
critical.h Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter() 2002-04-01 23:51:23 +00:00
db_machdep.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
dig64.h More MFp4: DIG64 structures. 2002-12-18 18:52:20 +00:00
efi.h
elf.h Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable 2002-07-20 02:56:12 +00:00
endian.h Be careful not to define GCC-specific optimizations in the non-GCC 2002-09-23 04:32:17 +00:00
exec.h
float.h Correct LDBL_* constants based on values from i386. 2003-03-27 20:38:22 +00:00
floatingpoint.h
fpu.h
frame.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
ia64_cpu.h o Remove namespace pollution from param.h: 2002-05-19 04:42:19 +00:00
ieee.h
ieeefp.h s/_ALPHA_/_MACHINE_/ 2002-05-13 05:01:05 +00:00
in_cksum.h
inst.h
intr.h Don't hardcode the address of the local (S)APIC (aka processor 2003-01-05 22:14:30 +00:00
intrcnt.h Bump the number of interrupts from 65 to 257. This is a waste of 2003-01-05 22:00:19 +00:00
ioctl_bt848.h
ioctl_meteor.h
kse.h Add a copy of the sparc64 machine/kse.h to satisfy depencies.. 2002-06-29 18:07:50 +00:00
limits.h sys/sys/limits.h: 2003-05-19 20:29:07 +00:00
mca.h Remove the definition of struct mca_guid and use the generic 2002-05-29 05:19:07 +00:00
md_var.h Remove special casing for running in the simulator from the kernel 2003-02-01 22:50:09 +00:00
mutex.h Modify the critical section API as follows: 2001-12-18 00:27:18 +00:00
nexusvar.h Convert NEXUS_ACCESSOR to use the __BUS_ACCESSOR 2002-08-22 19:47:10 +00:00
pal.h
param.h Kill MID_MACHINE, its a.out specific, the only platform that supports 2003-04-30 23:16:33 +00:00
pcb.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
pci_cfgreg.h
pcpu.h Remove unused MD fields (pc_pending_ipis, pc_next_asn and 2001-12-30 09:39:41 +00:00
pmap.h pmap_install() needs to be atomic WRT to context switching. Protect 2003-05-19 04:16:30 +00:00
proc.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
profile.h Change critical_t to register_t for intr_disable/restore. 2002-03-21 09:50:11 +00:00
pte.h
ptrace.h Move the definition of PT_[GS]ET{,DB,FP}REGS from the MD ptrace.h to the 2002-03-16 00:25:53 +00:00
reg.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
reloc.h
resource.h
runq.h Move the "- 1" into the RQB_FFS(mask) macro itself so that 2002-06-20 06:21:20 +00:00
sal.h Remove special casing for running in the simulator from the kernel 2003-02-01 22:50:09 +00:00
sapicreg.h
sapicvar.h List the IO SAPIC delivery mode definitions. 2002-10-04 01:33:30 +00:00
setjmp.h Fix threaded applications on ia64 that are linked dynamicly. We did 2003-03-05 04:39:24 +00:00
sigframe.h Split 4.x and 5.x signal handling so that we can keep 4.x signal 2002-10-25 19:10:58 +00:00
signal.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
smp.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
stdarg.h o Add conditionals to allow va_list to be defined in other headers. 2002-10-06 22:01:07 +00:00
sysarch.h
ucontext.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
unwind.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
varargs.h Add conditionals to allow va_list to be defined in other headers. 2002-10-06 22:02:06 +00:00
vmparam.h Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00