David S. Miller adf6de0646 sparc64: Make sure %pil interrupts are enabled during hypervisor yield. ... [ Upstream commit cb3042d609 ] In arch_cpu_idle() we must enable %pil based interrupts before potentially invoking the hypervisor cpu yield call. As per the Hypervisor API documentation for cpu_yield: Interrupts which are blocked by some mechanism other that pstate.ie (for example %pil) are not guaranteed to cause a return from this service. It seems that only first generation Niagara chips are hit by this bug. My best guess is that later chips implement this in hardware and wake up anyways from %pil events, whereas in first generation chips the yield is implemented completely in hypervisor code and requires %pil to be enabled in order to wake properly from this call. Fixes: 87fa05aeb3 ("sparc: Use generic idle loop") Reported-by: Fabio M. Di Nitto <fabbione@fabbione.net> Reported-by: Jan Engelhardt <jengelh@inai.de> Tested-by: Jan Engelhardt <jengelh@inai.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-04-26 17:15:36 -07:00
..
.gitignore
apc.c	sparc idle: rename pm_idle to sparc_idle	2013-02-17 23:36:56 -05:00
asm-offsets.c	sparc32: vm_area_struct access for old Sun SPARCs.	2013-07-28 16:29:41 -07:00
audit.c
auxio_32.c
auxio_64.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
btext.c
central.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
cherrs.S
chmc.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
compat_audit.c
cpu.c	sparc64: correctly recognize SPARC64-X chips	2013-03-11 05:06:27 -07:00
cpumap.c
cpumap.h
devices.c
dma.c
ds.c	sparc: fix ldom_reboot buffer overflow harder	2013-10-13 16:08:32 -07:00
dtlb_miss.S
dtlb_prot.S
ebus.c
entry.h	sparc64: Improvde documentation and readability of atomic backoff code.	2012-10-28 13:04:47 -07:00
entry.S	sparc32: Fix exit flag passed from traced sys_sigreturn	2013-10-13 16:08:33 -07:00
etrap_32.S
etrap_64.S	sparc64: clear syscall_noerror on the entry to syscall, not on the exit	2012-10-14 19:26:52 -04:00
fpu_traps.S
ftrace.c
getsetcc.S
head_32.S
head_64.S	sparc64: correctly recognize SPARC64-X chips	2013-03-11 05:06:27 -07:00
helpers.S
hvapi.c
hvcalls.S
hvtramp.S	sparc: Use generic idle loop	2013-04-13 21:36:27 +02:00
idprom.c
iommu_common.h
iommu.c
ioport.c	procfs: new helper - PDE_DATA(inode)	2013-04-09 14:13:32 -04:00
irq_32.c
irq_64.c
irq.h
itlb_miss.S
ivec.S
jump_label.c
kernel.h	sparc32: refactor smp boot	2013-02-20 13:36:50 -08:00
kgdb_32.c	sparc: explicitly include sched.h to get task_thread_info declaration	2013-02-06 11:04:10 -08:00
kgdb_64.c
kprobes.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
kstack.h
ktlb.S	sparc64: Fix ITLB handler of null page	2013-10-13 16:08:32 -07:00
ldc.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
led.c
leon_kernel.c	sparc32, leon: Remove separate "ticker" timer for SMP	2013-06-19 02:10:29 -07:00
leon_pci_grpci1.c	sparc,leon: Convert to use devm_ioremap_resource	2013-06-19 02:10:30 -07:00
leon_pci_grpci2.c	sparc32,leon: add support for PCI busn resource for GRPCI2	2013-03-20 11:06:53 -07:00
leon_pci.c	sparc32,leon: add support for PCI busn resource for GRPCI2	2013-03-20 11:06:53 -07:00
leon_pmc.c	sparc32, leon: Enable interrupts before going idle to avoid getting stuck	2013-06-19 02:10:29 -07:00
leon_smp.c	mm/SPARC: use common help functions to free reserved pages	2013-05-07 18:38:26 -07:00
Makefile	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc	2013-05-04 18:34:13 -07:00
mdesc.c
misctrap.S
module.c	modules: don't hand 0 to vmalloc.	2012-12-14 13:06:43 +10:30
nmi.c
of_device_32.c
of_device_64.c
of_device_common.c
of_device_common.h
pci_common.c
pci_fire.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
pci_impl.h	drivers/of: Constify device_node->name and ->path_component_name	2012-11-17 12:05:57 +00:00
pci_msi.c
pci_psycho.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
pci_sabre.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
pci_schizo.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
pci_sun4v_asm.S
pci_sun4v.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
pci_sun4v.h
pci.c	sparc: PCI: Fix incorrect address calculation of PCI Bridge windows on Simba-bridges	2014-04-26 17:15:36 -07:00
pcic.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
pcr.c
perf_event.c	sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.	2012-10-26 15:18:37 -07:00
pmc.c	sparc idle: rename pm_idle to sparc_idle	2013-02-17 23:36:56 -05:00
power.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
process_32.c	dump_stack: unify debug information printed by show_regs()	2013-04-30 17:04:02 -07:00
process_64.c	sparc64: Make sure %pil interrupts are enabled during hypervisor yield.	2014-04-26 17:15:36 -07:00
prom_32.c
prom_64.c
prom_common.c	of: Fix locking vs. interrupts	2013-06-13 22:12:14 +01:00
prom_irqtrans.c
prom.h
psycho_common.c
psycho_common.h
ptrace_32.c
ptrace_64.c	sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.	2012-10-26 15:18:37 -07:00
reboot.c
rtrap_32.S
rtrap_64.S
sbus.c	sparc: kernel/sbus.c: fix memory leakage	2013-01-21 14:33:00 -08:00
setup_32.c	sparc: kernel: using strlcpy() instead of strcpy()	2013-06-19 02:10:29 -07:00
setup_64.c	sparc: kernel: using strlcpy() instead of strcpy()	2013-06-19 02:10:29 -07:00
signal_32.c	sparc: convert to ksignal	2013-02-14 09:21:16 -05:00
signal_64.c	sparc: convert to ksignal	2013-02-14 09:21:16 -05:00
signal32.c	[regression] braino in "sparc: convert to ksignal"	2013-03-02 02:55:16 -05:00
sigutil_32.c
sigutil_64.c
sigutil.h
smp_32.c	sparc: Use generic idle loop	2013-04-13 21:36:27 +02:00
smp_64.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-04-30 07:50:17 -07:00
sparc_ksyms_32.c
sparc_ksyms_64.c
spiterrs.S
sstate.c
stacktrace.c
starfire.c
sun4d_irq.c	Include missing linux/slab.h inclusions	2013-04-29 15:42:01 -04:00
sun4d_smp.c	sparc32: refactor smp boot	2013-02-20 13:36:50 -08:00
sun4m_irq.c
sun4m_smp.c	sparc32: refactor smp boot	2013-02-20 13:36:50 -08:00
sun4v_ivec.S
sun4v_tlb_miss.S	sparc64: Support transparent huge pages.	2012-10-09 16:23:06 +09:00
sys_sparc_32.c	sparc: switch to use of generic old sigaction	2013-02-03 22:43:35 -05:00
sys_sparc_64.c	get rid of union semop in sys_semctl(2) arguments	2013-03-05 15:14:16 -05:00
sys_sparc32.c	sparc: no need to sign-extend in sync_file_range() wrapper	2013-03-03 23:00:40 -05:00
sys32.S	unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE	2013-05-09 13:46:38 -04:00
syscalls.S	sparc64: don't treat 64-bit syscall return codes as 32-bit	2014-04-26 17:15:36 -07:00
sysfs.c
systbls_32.S	sparc: switch to use of generic old sigaction	2013-02-03 22:43:35 -05:00
systbls_64.S	unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE	2013-05-09 13:46:38 -04:00
systbls.h	sparc: switch to generic old sigsuspend	2013-02-03 22:44:37 -05:00
tadpole.c
time_32.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
time_64.c	sparc: remove __devinit, __devexit annotations	2013-01-12 15:28:45 -08:00
trampoline_32.S	sparc32: refactor smp boot	2013-02-20 13:36:50 -08:00
trampoline_64.S	sparc64: Fix off by one in trampoline TLB mapping installation loop.	2013-10-13 16:08:32 -07:00
traps_32.c	taint: add explicit flag to show whether lock dep is still OK.	2013-01-21 17:17:57 +10:30
traps_64.c	dump_stack: consolidate dump_stack() implementations and unify their behaviors	2013-04-30 17:04:02 -07:00
tsb.S	sparc64: Fix tsb_grow() in atomic context.	2013-02-20 09:46:08 -08:00
ttable_32.S
ttable_64.S
una_asm_32.S
una_asm_64.S
unaligned_32.c
unaligned_64.c	sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.	2012-10-26 15:18:37 -07:00
utrap.S
vio.c	sparc/kernel/vio.c: add put_device() after device_find_child()	2013-05-04 17:38:18 -07:00
viohs.c
visemul.c	sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.	2012-10-26 15:18:37 -07:00
vmlinux.lds.S	sparc64: Improvde documentation and readability of atomic backoff code.	2012-10-28 13:04:47 -07:00
windows.c
winfixup.S	sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.	2012-10-26 15:18:37 -07:00
wof.S
wuf.S