This silently was working for many years and stopped working on
Niagara-T3 machines.
We need to set the MSIQ to VALID before we can set it's state to IDLE.
On Niagara-T3, setting the state to IDLE first was causing HV_EINVAL
errors. The hypervisor documentation says, rather ambiguously, that
the MSIQ must be "initialized" before one can set the state.
I previously understood this to mean merely that a successful setconf()
operation has been performed on the MSIQ, which we have done at this
point. But it seems to also mean that it has been set VALID too.
Signed-off-by: David S. Miller <davem@davemloft.net>
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some of the sun4v code patching occurs in inline functions visible
to, and usable by, modules.
Therefore we have to patch them up during module load.
Signed-off-by: David S. Miller <davem@davemloft.net>
As per the comments added by this commit, %g2 turns out to not be a
usable place to save away orig_i0 for syscall restart handling.
In fact all of %g2, %g3, %g4, and %g5 are assumed to be saved across
a system call by various bits of code in glibc.
%g1 can't be used because that holds the syscall number, which would
need to be saved and restored for syscall restart handling too, and
that would only compound our problems :-)
This leaves us with %g6 and %g7 which are for "system use". %g7 is
used as the "thread register" by glibc, but %g6 is used as a compiler
and assembler temporary scratch register. And in no instance is %g6
used to hold a value across a system call.
Therefore %g6 is safe for storing away orig_i0, at least for now.
Signed-off-by: David S. Miller <davem@davemloft.net>
Although we provide a proper way for a debugger to control whether
syscall restart occurs, we run into problems because orig_i0 is not
saved and restored properly.
Luckily we can solve this problem without having to make debuggers
aware of the issue. Across system calls, several registers are
considered volatile and can be safely clobbered.
Therefore we use the pt_regs save area of one of those registers, %g2,
as a place to save and restore orig_i0.
Debuggers transparently will do the right thing because they save and
restore this register already.
Signed-off-by: David S. Miller <davem@davemloft.net>
This file introduced in 2.6.32.47 currently fails to compile:
arch/sparc/kernel/sigutil_64.c: In function 'save_fpu_state':
arch/sparc/kernel/sigutil_64.c:25: error: 'EFAULT' undeclared (first use in this function)
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'upstream/jump-label-noearly' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
jump-label: initialize jump-label subsystem much earlier
x86/jump_label: add arch_jump_label_transform_static()
s390/jump-label: add arch_jump_label_transform_static()
jump_label: add arch_jump_label_transform_static() to optimise non-live code updates
sparc/jump_label: drop arch_jump_label_text_poke_early()
x86/jump_label: drop arch_jump_label_text_poke_early()
jump_label: if a key has already been initialized, don't nop it out
stop_machine: make stop_machine safe and efficient to call early
jump_label: use proper atomic_t initializer
Conflicts:
- arch/x86/kernel/jump_label.c
Added __init_or_module to arch_jump_label_text_poke_early vs
removal of that function entirely
- kernel/stop_machine.c
same patch ("stop_machine: make stop_machine safe and efficient
to call early") merged twice, with whitespace fix in one version
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
Revert "tracing: Include module.h in define_trace.h"
irq: don't put module.h into irq.h for tracking irqgen modules.
bluetooth: macroize two small inlines to avoid module.h
ip_vs.h: fix implicit use of module_get/module_put from module.h
nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
include: replace linux/module.h with "struct module" wherever possible
include: convert various register fcns to macros to avoid include chaining
crypto.h: remove unused crypto_tfm_alg_modname() inline
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
pm_runtime.h: explicitly requires notifier.h
linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
miscdevice.h: fix up implicit use of lists and types
stop_machine.h: fix implicit use of smp.h for smp_processor_id
of: fix implicit use of errno.h in include/linux/of.h
of_platform.h: delete needless include <linux/module.h>
acpi: remove module.h include from platform/aclinux.h
miscdevice.h: delete unnecessary inclusion of module.h
device_cgroup.h: delete needless include <linux/module.h>
net: sch_generic remove redundant use of <linux/module.h>
net: inet_timewait_sock doesnt need <linux/module.h>
...
Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in
- drivers/media/dvb/frontends/dibx000_common.c
- drivers/media/video/{mt9m111.c,ov6650.c}
- drivers/mfd/ab3550-core.c
- include/linux/dmaengine.h
The file mm/extable.c needs module.h for within_module_init(), and
also for search_exception_tables [which arguably could be living somewhere
more appropriate than module.h] - eventually causing this:
arch/sparc/mm/extable.c: In function 'trim_init_extable':
arch/sparc/mm/extable.c:74: error: dereferencing pointer to incomplete type
arch/sparc/mm/extable.c:75: error: dereferencing pointer to incomplete type
arch/sparc/mm/extable.c:77: error: implicit declaration of function 'within_module_init'
arch/sparc/mm/extable.c:77: error: dereferencing pointer to incomplete type
arch/sparc/mm/extable.c:78: error: dereferencing pointer to incomplete type
arch/sparc/mm/extable.c:80: error: dereferencing pointer to incomplete type
arch/sparc/mm/extable.c: In function 'search_extables_range':
arch/sparc/mm/extable.c:93: error: implicit declaration of function 'search_exception_tables'
The other instances are more straight forward uses of things
like MODULE_* and module_*
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Building an allyesconfig doesn't reveal a hidden need
for any of these. Since module.h brings in the whole kitchen
sink, it just needlessly adds 30k+ lines to the cpp burden.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Many of the core sparc kernel files are not modules, but just
including module.h for exporting symbols. Now these files can
use the lighter footprint export.h for this role.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
These files are only exporting symbols, so they don't need
the full module.h header file. Previously they were getting
access to EXPORT_SYMBOL implicitly via overuse of module.h
from within other .h files, but that is being cleaned up.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Building sparc64 with the module.h cleanup reveals this implicit
include being taken advantage of:
arch/sparc/kernel/mdesc.c: In function 'mdesc_read':
arch/sparc/kernel/mdesc.c:900: error: implicit declaration of function 'copy_to_user'
Fix it up before the implicit module.h presence is removed.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
To resolve these on 64bit allnoconfig builds:
CC arch/sparc/kernel/pcr.o
arch/sparc/kernel/pcr.c: In function 'register_perf_hsvc':
arch/sparc/kernel/pcr.c:102: error: 'tlb_type' undeclared (first use in this function)
CC arch/sparc/kernel/of_device_64.o
arch/sparc/kernel/of_device_64.c: In function 'build_device_resources':
arch/sparc/kernel/of_device_64.c:406: error: 'tlb_type' undeclared (first use in this function)
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Currently no type of alignment is specified for PCI expansion roms while
parsing the openfirmware tree. This causes calls to pci_map_rom() to fail.
IORESOURCE_SIZEALIGN is the default alignment used for rom resouces in
pci/probe.c, and has been verified to work with various cards on a ultra 10.
Signed-off-By: Kjetil Oftedal <oftedal@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block
is pending in the shared queue.
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If "-p" is given on the command line, clear the CON_BOOT
flag for the initial early boot PROM console.
This is necessary to try and see crash messages that occur
between the registry of the VT console and the probing of
the first framebuffer or serial console. During this time
no console messages are emitted because the VT console
registry (even if no backend is registered to it) removes
the early console if CON_BOOT is set.
Signed-off-by: David S. Miller <davem@davemloft.net>
Recognize T4 and T5 chips. Treating them both as "T2 plus other
stuff" should be extremely safe and make sure distributions will work
when those chips actually ship to customers.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller
Thomas Meyer
Ben Hutchings
Linus Torvalds
Paul Gortmaker
Jeremy Fitzhardinge
Kjetil Oftedal
Matt Fleming
Mathias Krause