Nathan Whitehorn 54c562081f Restructure the way the copyin/copyout segment is stored to prevent a ... concurrency bug. Since all SLB/SR entries were invalidated during an exception, a decrementer exception could cause the user segment to be invalidated during a copyin()/copyout() without a thread switch that would cause it to be restored from the PCB, potentially causing the operation to continue on invalid memory. This is now handled by explicit restoration of segment 12 from the PCB on 32-bit systems and a check in the Data Segment Exception handler on 64-bit. While here, cause copyin()/copyout() to check whether the requested user segment is already installed, saving some pipeline flushes, and fix the synchronization primitives around the mtsr and slbmte instructions to prevent accessing stale segments. MFC after: 2 weeks		2010-10-30 23:07:30 +00:00
..
_align.h	MFppc64:	2010-07-13 05:32:19 +00:00
_bus.h	MFppc64:	2010-07-13 05:32:19 +00:00
_inttypes.h	MFppc64:	2010-07-13 05:32:19 +00:00
_limits.h	MFppc64:	2010-07-13 05:32:19 +00:00
_stdint.h	MFppc64:	2010-07-13 05:32:19 +00:00
_types.h	MFppc64:	2010-07-13 05:32:19 +00:00
altivec.h	Handle vector assist traps without a kernel panic, by setting denormalized	2010-10-05 18:08:07 +00:00
asm.h	MFppc64:	2010-07-13 05:32:19 +00:00
atomic.h	MFppc64:	2010-07-13 05:32:19 +00:00
bat.h
bus_dma.h
bus.h	MFppc64:	2010-07-13 05:32:19 +00:00
clock.h
cpu.h	Add a CPU features framework on PowerPC and simplify CPU setup a little	2009-11-28 17:33:19 +00:00
cpufunc.h	MFppc64:	2010-07-13 05:32:19 +00:00
db_machdep.h	MFppc64:	2010-07-13 05:32:19 +00:00
dbdma.h
elf.h	Supply some useful information to the started image using ELF aux vectors.	2010-08-17 08:55:45 +00:00
endian.h
exec.h
fdt.h	Eliminate FDT_IMMR_VA define.	2010-07-19 18:47:18 +00:00
float.h
floatingpoint.h
fpu.h
frame.h	MFppc64:	2010-07-13 05:32:19 +00:00
gdb_machdep.h
hid.h	MFppc64:	2010-07-13 05:32:19 +00:00
ieee.h
ieeefp.h
in_cksum.h
intr_machdep.h	Update PowerPC event timer code to use new event timers infrastructure.	2010-09-11 04:45:51 +00:00
kdb.h
limits.h
md_var.h	Update PowerPC event timer code to use new event timers infrastructure.	2010-09-11 04:45:51 +00:00
memdev.h	Add a memory-range interface to /dev/mem on PowerPC using PAT attributes.	2010-10-03 16:02:53 +00:00
metadata.h	Convert Freescale PowerPC platforms to FDT convention.	2010-07-11 21:08:29 +00:00
mmuvar.h	Introduce inheritance into the PowerPC MMU kobj interface.	2010-09-15 00:17:52 +00:00
mutex.h	Initial support for SMP on PowerPC MPC85xx.	2009-05-21 11:43:37 +00:00
ofw_machdep.h	Restructure how reset and poweroff are handled on PowerPC systems, since	2010-08-31 15:27:46 +00:00
openpicreg.h
openpicvar.h	Configure interrupts on SMP systems to be distributed among all online	2010-06-23 22:33:03 +00:00
param.h	- Bump MAXCPU to 4. Tested on a quad G5 with both 32 and 64-bit kernels.	2010-09-03 03:56:09 +00:00
pcb.h	Restructure the way the copyin/copyout segment is stored to prevent a	2010-10-30 23:07:30 +00:00
pcpu.h	Split the SLB mirror cache into two kinds of object, one for kernel maps	2010-09-16 03:46:17 +00:00
pio.h	Provide 64-bit big endian bus space operations for PowerPC. They are required	2009-06-06 09:33:32 +00:00
platform.h	Factor out platform dependent things unrelated to device drivers into a	2009-05-14 00:34:26 +00:00
platformvar.h	Factor out platform dependent things unrelated to device drivers into a	2009-05-14 00:34:26 +00:00
pmap.h	Add support for memory attributes (pmap_mapdev_attr() and friends) on	2010-09-30 18:14:12 +00:00
pmc_mdep.h
proc.h	MFppc64:	2010-07-13 05:32:19 +00:00
profile.h	MFppc64:	2010-07-13 05:32:19 +00:00
psl.h	MFppc64:	2010-07-13 05:32:19 +00:00
pte.h	MFppc64:	2010-07-13 05:32:19 +00:00
ptrace.h
reg.h	MFppc64:	2010-07-13 05:32:19 +00:00
reloc.h
resource.h
runq.h	MFppc64:	2010-07-13 05:32:19 +00:00
sc_machdep.h
setjmp.h
sf_buf.h	Add support for 64-bit PowerPC CPUs operating in the 64-bit bridge mode	2009-04-04 00:22:44 +00:00
sigframe.h
signal.h
slb.h	Restructure the way the copyin/copyout segment is stored to prevent a	2010-10-30 23:07:30 +00:00
smp.h	Refactor timer management code with priority to one-shot operation mode.	2010-09-13 07:25:35 +00:00
spr.h	MFppc64:	2010-07-13 05:32:19 +00:00
sr.h	Restructure the way the copyin/copyout segment is stored to prevent a	2010-10-30 23:07:30 +00:00
stack.h
stdarg.h
sysarch.h	Add sysarch.h. It's included by drm(4).	2009-04-04 22:05:36 +00:00
tlb.h	Rework BookE pmap towards multi-core support.	2009-01-13 15:41:58 +00:00
trap_aim.h	Handle vector assist traps without a kernel panic, by setting denormalized	2010-10-05 18:08:07 +00:00
trap_booke.h
trap.h
ucontext.h	MFppc64:	2010-07-13 05:32:19 +00:00
varargs.h
vm.h	Add support for memory attributes (pmap_mapdev_attr() and friends) on	2010-09-30 18:14:12 +00:00
vmparam.h	Very rough first cut at NUMA support for the physical page allocator. For	2010-07-27 20:33:50 +00:00