16 Apr, 2015
3 commits
-
Merge second patchbomb from Andrew Morton:
- the rest of MM
- various misc bits
- add ability to run /sbin/reboot at reboot time
- printk/vsprintf changes
- fiddle with seq_printf() return value
* akpm: (114 commits)
parisc: remove use of seq_printf return value
lru_cache: remove use of seq_printf return value
tracing: remove use of seq_printf return value
cgroup: remove use of seq_printf return value
proc: remove use of seq_printf return value
s390: remove use of seq_printf return value
cris fasttimer: remove use of seq_printf return value
cris: remove use of seq_printf return value
openrisc: remove use of seq_printf return value
ARM: plat-pxa: remove use of seq_printf return value
nios2: cpuinfo: remove use of seq_printf return value
microblaze: mb: remove use of seq_printf return value
ipc: remove use of seq_printf return value
rtc: remove use of seq_printf return value
power: wakeup: remove use of seq_printf return value
x86: mtrr: if: remove use of seq_printf return value
linux/bitmap.h: improve BITMAP_{LAST,FIRST}_WORD_MASK
MAINTAINERS: CREDITS: remove Stefano Brivio from B43
.mailmap: add Ricardo Ribalda
CREDITS: add Ricardo Ribalda Delgado
... -
The seq_printf return value, because it's frequently misused,
will eventually be converted to void.See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
seq_has_overflowed() and make public")Signed-off-by: Joe Perches
Cc: Jonas Bonn
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull exec domain removal from Richard Weinberger:
"This series removes execution domain support from Linux.The idea behind exec domains was to support different ABIs. The
feature was never complete nor stable. Let's rip it out and make the
kernel signal handling code less complicated"* 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits)
arm64: Removed unused variable
sparc: Fix execution domain removal
Remove rest of exec domains.
arch: Remove exec_domain from remaining archs
arc: Remove signal translation and exec_domain
xtensa: Remove signal translation and exec_domain
xtensa: Autogenerate offsets in struct thread_info
x86: Remove signal translation and exec_domain
unicore32: Remove signal translation and exec_domain
um: Remove signal translation and exec_domain
tile: Remove signal translation and exec_domain
sparc: Remove signal translation and exec_domain
sh: Remove signal translation and exec_domain
s390: Remove signal translation and exec_domain
mn10300: Remove signal translation and exec_domain
microblaze: Remove signal translation and exec_domain
m68k: Remove signal translation and exec_domain
m32r: Remove signal translation and exec_domain
m32r: Autogenerate offsets in struct thread_info
frv: Remove signal translation and exec_domain
...
13 Apr, 2015
1 commit
-
Signed-off-by: Richard Weinberger
12 Apr, 2015
1 commit
-
flush_old_exec() has already done that. Back on 2011 a bunch of
instances like that had been kicked out, but that hadn't taken
care of then-out-of-tree architectures, obviously, and they served
as reinfection vector...Signed-off-by: Al Viro
19 Feb, 2015
1 commit
-
Pull asm-generic uaccess.h cleanup from Arnd Bergmann:
"Like in 3.19, I once more have a multi-stage cleanup for one
asm-generic header file, this time the work was done by Michael
Tsirkin and cleans up the uaccess.h file in asm-generic, as well as
all architectures for which the respective maintainers did not pick up
his patches directly"* tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (37 commits)
sparc32: nocheck uaccess coding style tweaks
sparc64: nocheck uaccess coding style tweaks
xtensa: macro whitespace fixes
sh: macro whitespace fixes
parisc: macro whitespace fixes
m68k: macro whitespace fixes
m32r: macro whitespace fixes
frv: macro whitespace fixes
cris: macro whitespace fixes
avr32: macro whitespace fixes
arm64: macro whitespace fixes
arm: macro whitespace fixes
alpha: macro whitespace fixes
blackfin: macro whitespace fixes
sparc64: uaccess_64 macro whitespace fixes
sparc32: uaccess_32 macro whitespace fixes
avr32: whitespace fix
sh: fix put_user sparse errors
metag: fix put_user sparse errors
ia64: fix put_user sparse errors
...
13 Feb, 2015
1 commit
-
If an attacker can cause a controlled kernel stack overflow, overwriting
the restart block is a very juicy exploit target. This is because the
restart_block is held in the same memory allocation as the kernel stack.Moving the restart block to struct task_struct prevents this exploit by
making the restart_block harder to locate.Note that there are other fields in thread_info that are also easy
targets, at least on some architectures.It's also a decent simplification, since the restart code is more or less
identical on all architectures.[james.hogan@imgtec.com: metag: align thread_info::supervisor_stack]
Signed-off-by: Andy Lutomirski
Cc: Thomas Gleixner
Cc: Al Viro
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Kees Cook
Cc: David Miller
Acked-by: Richard Weinberger
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Matt Turner
Cc: Vineet Gupta
Cc: Russell King
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Haavard Skinnemoen
Cc: Hans-Christian Egtvedt
Cc: Steven Miao
Cc: Mark Salter
Cc: Aurelien Jacquiot
Cc: Mikael Starvik
Cc: Jesper Nilsson
Cc: David Howells
Cc: Richard Kuo
Cc: "Luck, Tony"
Cc: Geert Uytterhoeven
Cc: Michal Simek
Cc: Ralf Baechle
Cc: Jonas Bonn
Cc: "James E.J. Bottomley"
Cc: Helge Deller
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Acked-by: Michael Ellerman (powerpc)
Tested-by: Michael Ellerman (powerpc)
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: Chen Liqin
Cc: Lennox Wu
Cc: Chris Metcalf
Cc: Guan Xuetao
Cc: Chris Zankel
Cc: Max Filippov
Cc: Oleg Nesterov
Cc: Guenter Roeck
Signed-off-by: James Hogan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Feb, 2015
1 commit
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LKP has triggered a compiler warning after my recent patch "mm: account
pmd page tables to the process":mm/mmap.c: In function 'exit_mmap':
>> mm/mmap.c:2857:2: warning: right shift count >= width of type [enabled by default]The code:
> 2857 WARN_ON(mm_nr_pmds(mm) >
2858 round_up(FIRST_USER_ADDRESS, PUD_SIZE) >> PUD_SHIFT);In this, on tile, we have FIRST_USER_ADDRESS defined as 0. round_up() has
the same type -- int. PUD_SHIFT.I think the best way to fix it is to define FIRST_USER_ADDRESS as unsigned
long. On every arch for consistency.Signed-off-by: Kirill A. Shutemov
Reported-by: Wu Fengguang
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Feb, 2015
1 commit
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We've replaced remap_file_pages(2) implementation with emulation. Nobody
creates non-linear mapping anymore.Signed-off-by: Kirill A. Shutemov
Cc: Jonas Bonn
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
30 Jan, 2015
1 commit
-
The core VM already knows about VM_FAULT_SIGBUS, but cannot return a
"you should SIGSEGV" error, because the SIGSEGV case was generally
handled by the caller - usually the architecture fault handler.That results in lots of duplication - all the architecture fault
handlers end up doing very similar "look up vma, check permissions, do
retries etc" - but it generally works. However, there are cases where
the VM actually wants to SIGSEGV, and applications _expect_ SIGSEGV.In particular, when accessing the stack guard page, libsigsegv expects a
SIGSEGV. And it usually got one, because the stack growth is handled by
that duplicated architecture fault handler.However, when the generic VM layer started propagating the error return
from the stack expansion in commit fee7e49d4514 ("mm: propagate error
from stack expansion even for guard page"), that now exposed the
existing VM_FAULT_SIGBUS result to user space. And user space really
expected SIGSEGV, not SIGBUS.To fix that case, we need to add a VM_FAULT_SIGSEGV, and teach all those
duplicate architecture fault handlers about it. They all already have
the code to handle SIGSEGV, so it's about just tying that new return
value to the existing code, but it's all a bit annoying.This is the mindless minimal patch to do this. A more extensive patch
would be to try to gather up the mostly shared fault handling logic into
one generic helper routine, and long-term we really should do that
cleanup.Just from this patch, you can generally see that most architectures just
copied (directly or indirectly) the old x86 way of doing things, but in
the meantime that original x86 model has been improved to hold the VM
semaphore for shorter times etc and to handle VM_FAULT_RETRY and other
"newer" things, so it would be a good idea to bring all those
improvements to the generic case and teach other architectures about
them too.Reported-and-tested-by: Takashi Iwai
Tested-by: Jan Engelhardt
Acked-by: Heiko Carstens # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds
13 Jan, 2015
1 commit
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virtio wants to read bitwise types from userspace using get_user. At the
moment this triggers sparse errors, since the value is passed through an
integer.Fix that up using __force.
Signed-off-by: Michael S. Tsirkin
11 Dec, 2014
1 commit
-
As there are now no remaining users of arch_fast_hash(), lets kill
it entirely.This basically reverts commit 71ae8aac3e19 ("lib: introduce arch
optimized hash library") and follow-up work, that is f.e., commit
237217546d44 ("lib: hash: follow-up fixups for arch hash"),
commit e3fec2f74f7f ("lib: Add missing arch generic-y entries for
asm-generic/hash.h") and last but not least commit 6a02652df511
("perf tools: Fix include for non x86 architectures").Cc: Francesco Fusco
Cc: Thomas Graf
Cc: Arnaldo Carvalho de Melo
Signed-off-by: Daniel Borkmann
Signed-off-by: David S. Miller
20 Oct, 2014
1 commit
-
Pull audit updates from Eric Paris:
"So this change across a whole bunch of arches really solves one basic
problem. We want to audit when seccomp is killing a process. seccomp
hooks in before the audit syscall entry code. audit_syscall_entry
took as an argument the arch of the given syscall. Since the arch is
part of what makes a syscall number meaningful it's an important part
of the record, but it isn't available when seccomp shoots the
syscall...For most arch's we have a better way to get the arch (syscall_get_arch)
So the solution was two fold: Implement syscall_get_arch() everywhere
there is audit which didn't have it. Use syscall_get_arch() in the
seccomp audit code. Having syscall_get_arch() everywhere meant it was
a useless flag on the stack and we could get rid of it for the typical
syscall entry.The other changes inside the audit system aren't grand, fixed some
records that had invalid spaces. Better locking around the task comm
field. Removing some dead functions and structs. Make some things
static. Really minor stuff"* git://git.infradead.org/users/eparis/audit: (31 commits)
audit: rename audit_log_remove_rule to disambiguate for trees
audit: cull redundancy in audit_rule_change
audit: WARN if audit_rule_change called illegally
audit: put rule existence check in canonical order
next: openrisc: Fix build
audit: get comm using lock to avoid race in string printing
audit: remove open_arg() function that is never used
audit: correct AUDIT_GET_FEATURE return message type
audit: set nlmsg_len for multicast messages.
audit: use union for audit_field values since they are mutually exclusive
audit: invalid op= values for rules
audit: use atomic_t to simplify audit_serial()
kernel/audit.c: use ARRAY_SIZE instead of sizeof/sizeof[0]
audit: reduce scope of audit_log_fcaps
audit: reduce scope of audit_net_id
audit: arm64: Remove the audit arch argument to audit_syscall_entry
arm64: audit: Add audit hook in syscall_trace_enter/exit()
audit: x86: drop arch from __audit_syscall_entry() interface
sparc: implement is_32bit_task
sparc: properly conditionalize use of TIF_32BIT
...
09 Oct, 2014
1 commit
-
Pull irq updates from Thomas Gleixner:
"The irq departement delivers:- a cleanup series to get rid of mindlessly copied code.
- another bunch of new pointlessly different interrupt chip drivers.
Adding homebrewn irq chips (and timers) to SoCs must provide a
value add which is beyond the imagination of mere mortals.- the usual SoC irq controller updates, IOW my second cat herding
project"* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
irqchip: gic-v3: Implement CPU PM notifier
irqchip: gic-v3: Refactor gic_enable_redist to support both enabling and disabling
irqchip: renesas-intc-irqpin: Add minimal runtime PM support
irqchip: renesas-intc-irqpin: Add helper variable dev = &pdev->dev
irqchip: atmel-aic5: Add sama5d4 support
irqchip: atmel-aic5: The sama5d3 has 48 IRQs
Documentation: bcm7120-l2: Add Broadcom BCM7120-style L2 binding
irqchip: bcm7120-l2: Add Broadcom BCM7120-style Level 2 interrupt controller
irqchip: renesas-irqc: Add binding docs for new R-Car Gen2 SoCs
irqchip: renesas-irqc: Add DT binding documentation
irqchip: renesas-intc-irqpin: Document SoC-specific bindings
openrisc: Get rid of handle_IRQ
arm64: Get rid of handle_IRQ
ARM: omap2: irq: Convert to handle_domain_irq
ARM: imx: tzic: Convert to handle_domain_irq
ARM: imx: avic: Convert to handle_domain_irq
irqchip: or1k-pic: Convert to handle_domain_irq
irqchip: atmel-aic5: Convert to handle_domain_irq
irqchip: atmel-aic: Convert to handle_domain_irq
irqchip: gic-v3: Convert to handle_domain_irq
...
27 Sep, 2014
1 commit
-
openrisc:defconfig fails to build in next-20140926 with the following error.
In file included from arch/openrisc/kernel/signal.c:31:0:
./arch/openrisc/include/asm/syscall.h: In function 'syscall_get_arch':
./arch/openrisc/include/asm/syscall.h:77:9: error: 'EM_OPENRISC' undeclaredFix by moving EM_OPENRISC to include/uapi/linux/elf-em.h.
Fixes: ce5d112827e5 ("ARCH: AUDIT: implement syscall_get_arch for all arches")
Cc: Eric Paris
Cc: Stefan Kristiansson
Cc: Geert Uytterhoeven
Cc: Stephen Rothwell
Signed-off-by: Guenter Roeck
Signed-off-by: Eric Paris
24 Sep, 2014
2 commits
-
We have a function where the arch can be queried, syscall_get_arch().
So rather than have every single piece of arch specific code use and/or
duplicate syscall_get_arch(), just have the audit code use the
syscall_get_arch() code.Based-on-patch-by: Richard Briggs
Signed-off-by: Eric Paris
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: linux-xtensa@linux-xtensa.org
Cc: x86@kernel.org -
For all arches which support audit implement syscall_get_arch()
They are all pretty easy and straight forward, stolen from how the call
to audit_syscall_entry() determines the arch.Based-on-patch-by: Richard Briggs
Signed-off-by: Eric Paris
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
14 Sep, 2014
1 commit
-
The nohz full code needs irq work to trigger its own interrupt so that
the subsystem can work even when the tick is stopped.Lets introduce arch_irq_work_has_interrupt() that archs can override to
tell about their support for this ability.Signed-off-by: Peter Zijlstra
Cc: Ingo Molnar
Cc: Paul E. McKenney
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Signed-off-by: Frederic Weisbecker
03 Sep, 2014
2 commits
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The openrisc irqchip driver has been converted to handle_domain_irq,
making it possible to remove the handle_IRQ stub entierely.Signed-off-by: Marc Zyngier
Acked-by: Stefan Kristiansson
Link: https://lkml.kernel.org/r/1409047421-27649-27-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper -
In order to limit code duplication, convert the architecture specific
handle_IRQ to use the generic __handle_domain_irq function.Signed-off-by: Marc Zyngier
Acked-by: Stefan Kristiansson
Link: https://lkml.kernel.org/r/1409047421-27649-5-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper
10 Aug, 2014
1 commit
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Pull arch signal handling cleanup from Richard Weinberger:
"This patch series moves all remaining archs to the get_signal(),
signal_setup_done() and sigsp() functions.Currently these archs use open coded variants of the said functions.
Further, unused parameters get removed from get_signal_to_deliver(),
tracehook_signal_handler() and signal_delivered().At the end of the day we save around 500 lines of code."
* 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits)
powerpc: Use sigsp()
openrisc: Use sigsp()
mn10300: Use sigsp()
mips: Use sigsp()
microblaze: Use sigsp()
metag: Use sigsp()
m68k: Use sigsp()
m32r: Use sigsp()
hexagon: Use sigsp()
frv: Use sigsp()
cris: Use sigsp()
c6x: Use sigsp()
blackfin: Use sigsp()
avr32: Use sigsp()
arm64: Use sigsp()
arc: Use sigsp()
sas_ss_flags: Remove nested ternary if
Rip out get_signal_to_deliver()
Clean up signal_delivered()
tracehook_signal_handler: Remove sig, info, ka and regs
...
06 Aug, 2014
2 commits
-
Use sigsp() instead of the open coded variant.
Signed-off-by: Richard Weinberger
-
Pull irq updates from Thomas Gleixner:
"Nothing spectacular from the irq department this time:
- overhaul of the crossbar chip driver
- overhaul of the spear shirq chip driver
- support for the atmel-aic chip
- code move from arch to drivers
- the usual tiny fixlets
- two reverts worth to mention which undo the too simple attempt of
supporting wakeup interrupts on shared interrupt lines"* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
Revert "irq: Warn when shared interrupts do not match on NO_SUSPEND"
Revert "PM / sleep / irq: Do not suspend wakeup interrupts"
irq: Warn when shared interrupts do not match on NO_SUSPEND
irqchip: atmel-aic: Define irq fixups for atmel SoCs
irqchip: atmel-aic: Implement RTC irq fixup
irqchip: atmel-aic: Add irq fixup infrastructure
irqchip: atmel-aic: Add atmel AIC/AIC5 drivers
irqchip: atmel-aic: Move binding doc to interrupt-controller directory
genirq: generic chip: Export irq_map_generic_chip function
PM / sleep / irq: Do not suspend wakeup interrupts
irqchip: or1k-pic: Migrate from arch/openrisc/
irqchip: crossbar: Allow for quirky hardware with direct hardwiring of GIC
documentation: dt: omap: crossbar: Add description for interrupt consumer
irqchip: crossbar: Introduce centralized check for crossbar write
irqchip: crossbar: Introduce ti, max-crossbar-sources to identify valid crossbar mapping
irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap callback
irqchip: crossbar: Set cb pointer to null in case of error
irqchip: crossbar: Change the goto naming
irqchip: crossbar: Return proper error value
irqchip: crossbar: Fix kerneldoc warning
...
17 Jul, 2014
1 commit
-
The arch_mutex_cpu_relax() function, introduced by 34b133f, is
hacky and ugly. It was added a few years ago to address the fact
that common cpu_relax() calls include yielding on s390, and thus
impact the optimistic spinning functionality of mutexes. Nowadays
we use this function well beyond mutexes: rwsem, qrwlock, mcs and
lockref. Since the macro that defines the call is in the mutex header,
any users must include mutex.h and the naming is misleading as well.This patch (i) renames the call to cpu_relax_lowlatency ("relax, but
only if you can do it with very low latency") and (ii) defines it in
each arch's asm/processor.h local header, just like for regular cpu_relax
functions. On all archs, except s390, cpu_relax_lowlatency is simply cpu_relax,
and thus we can take it out of mutex.h. While this can seem redundant,
I believe it is a good choice as it allows us to move out arch specific
logic from generic locking primitives and enables future(?) archs to
transparently define it, similarly to System Z.Signed-off-by: Davidlohr Bueso
Signed-off-by: Peter Zijlstra
Cc: Andrew Morton
Cc: Anton Blanchard
Cc: Aurelien Jacquiot
Cc: Benjamin Herrenschmidt
Cc: Bharat Bhushan
Cc: Catalin Marinas
Cc: Chen Liqin
Cc: Chris Metcalf
Cc: Christian Borntraeger
Cc: Chris Zankel
Cc: David Howells
Cc: David S. Miller
Cc: Deepthi Dharwar
Cc: Dominik Dingel
Cc: Fenghua Yu
Cc: Geert Uytterhoeven
Cc: Guan Xuetao
Cc: Haavard Skinnemoen
Cc: Hans-Christian Egtvedt
Cc: Heiko Carstens
Cc: Helge Deller
Cc: Hirokazu Takata
Cc: Ivan Kokshaysky
Cc: James E.J. Bottomley
Cc: James Hogan
Cc: Jason Wang
Cc: Jesper Nilsson
Cc: Joe Perches
Cc: Jonas Bonn
Cc: Joseph Myers
Cc: Kees Cook
Cc: Koichi Yasutake
Cc: Lennox Wu
Cc: Linus Torvalds
Cc: Mark Salter
Cc: Martin Schwidefsky
Cc: Matt Turner
Cc: Max Filippov
Cc: Michael Neuling
Cc: Michal Simek
Cc: Mikael Starvik
Cc: Nicolas Pitre
Cc: Paolo Bonzini
Cc: Paul Burton
Cc: Paul E. McKenney
Cc: Paul Gortmaker
Cc: Paul Mackerras
Cc: Qais Yousef
Cc: Qiaowei Ren
Cc: Rafael Wysocki
Cc: Ralf Baechle
Cc: Richard Henderson
Cc: Richard Kuo
Cc: Russell King
Cc: Steven Miao
Cc: Steven Rostedt
Cc: Stratos Karafotis
Cc: Tim Chen
Cc: Tony Luck
Cc: Vasily Kulikov
Cc: Vineet Gupta
Cc: Vineet Gupta
Cc: Waiman Long
Cc: Will Deacon
Cc: Wolfram Sang
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux390@de.ibm.com
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux@lists.openrisc.net
Cc: linux-m32r-ja@ml.linux-m32r.org
Cc: linux-m32r@ml.linux-m32r.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/1404079773.2619.4.camel@buesod1.americas.hpqcorp.net
Signed-off-by: Ingo Molnar
01 Jul, 2014
1 commit
-
In addition to consolidating the or1k-pic with other interrupt
controllers, this makes OpenRISC less tied to its on-cpu
interrupt controller.All or1k-pic specific parts are moved out of irq.c and into
drivers/irqchip/irq-or1k-pic.cIn that transition, the functionality have been divided into
three chip variants.
One that handles level triggered interrupts, one that handles edge
triggered interrupts and one that handles the interrupt
controller that is present in the or1200 OpenRISC cpu
implementation.Signed-off-by: Stefan Kristiansson
Link: https://lkml.kernel.org/r/1401136302-27654-1-git-send-email-stefan.kristiansson@saunalahti.fi
Acked-by: Jonas Bonn
Signed-off-by: Jason Cooper
05 Jun, 2014
1 commit
-
…/robh/linux into next
Pull DeviceTree updates from Rob Herring:
- Another round of clean-up of FDT related code in architecture code.
This removes knowledge of internal FDT details from most
architectures except powerpc.
- Conversion of kernel's custom FDT parsing code to use libfdt.
- DT based initialization for generic serial earlycon. The
introduction of generic serial earlycon support went in through the
tty tree.
- Improve the platform device naming for DT probed devices to ensure
unique naming and use parent names instead of a global index.
- Fix a race condition in of_update_property.
- Unify the various linker section OF match tables and fix several
function prototype errors.
- Update platform_get_irq_byname to work in deferred probe cases.
- 2 binding doc updates* tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (58 commits)
of: handle NULL node in next_child iterators
of/irq: provide more wrappers for !CONFIG_OF
devicetree: bindings: Document micrel vendor prefix
dt: bindings: dwc2: fix required value for the phy-names property
of_pci_irq: kill useless variable in of_irq_parse_pci()
of/irq: do irq resolution in platform_get_irq_byname()
of: Add a testcase for of_find_node_by_path()
of: Make of_find_node_by_path() handle /aliases
of: Create unlocked version of for_each_child_of_node()
lib: add glibc style strchrnul() variant
of: Handle memory@0 node on PPC32 only
pci/of: Remove dead code
of: fix race between search and remove in of_update_property()
of: Use NULL for pointers
of: Stop naming platform_device using dcr address
of: Ensure unique names without sacrificing determinism
tty/serial: pl011: add DT based earlycon support
of/fdt: add FDT serial scanning for earlycon
of/fdt: add FDT address translation support
serial: earlycon: add DT support
...
30 Apr, 2014
1 commit
-
Unify the various architectures __dtb_start and __dtb_end definitions
moving them into of_fdt.h.Signed-off-by: Rob Herring
Acked-by: Vineet Gupta
Acked-by: James Hogan
Tested-by: Michal Simek
Cc: Ralf Baechle
Cc: Jonas Bonn
Cc: Chris Zankel
Cc: Max Filippov
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-xtensa@linux-xtensa.org
Tested-by: Grant Likely
Tested-by: Stephen Chivers
18 Apr, 2014
1 commit
-
Openrisc fully relies on asm-generic/barrier.h and therefore its
smp_mb() is barrier().Signed-off-by: Peter Zijlstra
Acked-by: Paul E. McKenney
Link: http://lkml.kernel.org/n/tip-sxgxgqag9tond4kji07d22oh@git.kernel.org
Cc: Jonas Bonn
Cc: Linus Torvalds
Cc: linux-kernel@vger.kernel.org
Cc: linux@lists.openrisc.net
Signed-off-by: Ingo Molnar
08 Apr, 2014
1 commit
-
If the renamed symbol is defined lib/iomap.c implements ioport_map and
ioport_unmap and currently (nearly) all platforms define the port
accessor functions outb/inb and friend unconditionally. So
HAS_IOPORT_MAP is the better name for this.Consequently NO_IOPORT is renamed to NO_IOPORT_MAP.
The motivation for this change is to reintroduce a symbol HAS_IOPORT
that signals if outb/int et al are available. I will address that at
least one merge window later though to keep surprises to a minimum and
catch new introductions of (HAS|NO)_IOPORT.The changes in this commit were done using:
$ git grep -l -E '(NO|HAS)_IOPORT' | xargs perl -p -i -e 's/\b((?:CONFIG_)?(?:NO|HAS)_IOPORT)\b/$1_MAP/'
Signed-off-by: Uwe Kleine-König
Acked-by: Arnd Bergmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
10 Feb, 2014
2 commits
-
This patch allows each architecture to add its specific assembly optimized
arch_mcs_spin_lock_contended and arch_mcs_spinlock_uncontended for
MCS lock and unlock functions.Signed-off-by: Tim Chen
Cc: Scott J Norton
Cc: Raghavendra K T
Cc: AswinChandramouleeswaran
Cc: George Spelvin
Cc: Rik vanRiel
Cc: Andrea Arcangeli
Cc: MichelLespinasse
Cc: Peter Hurley
Cc: Andi Kleen
Cc: Alex Shi
Cc: Dave Hansen
Cc: Tim Chen
Cc: Arnd Bergmann
Cc: "Figo.zhang"
Cc: "Paul E.McKenney"
Cc: "H. Peter Anvin"
Cc: Davidlohr Bueso
Cc: Waiman Long
Cc: Ingo Molnar
Cc: Will Deacon
Cc: Andrew Morton
Cc: Linus Torvalds
Cc: Matthew R Wilcox
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/1390347382.3138.67.camel@schen9-DESK
Signed-off-by: Ingo Molnar -
We perform a clean up of the Kbuid files in each architecture.
We order the files in each Kbuild in alphabetical order
by running the below script.for i in arch/*/include/asm/Kbuild
do
cat $i | gawk '/^generic-y/ {
i = 3;
do {
for (; i ${i}.sorted;
mv ${i}.sorted $i;
doneSigned-off-by: Tim Chen
Cc: Arnd Bergmann
Cc: Matthew R Wilcox
Cc: AswinChandramouleeswaran
Cc: Dave Hansen
Cc: "Paul E.McKenney"
Cc: Scott J Norton
Cc: Will Deacon
Cc: "Figo.zhang"
Cc: Linus Torvalds
Cc: Rik van Riel
Cc: Waiman Long
Cc: Peter Hurley
Cc: Andrea Arcangeli
Cc: Tim Chen
Cc: Alex Shi
Cc: Raghavendra K T
Cc: Andi Kleen
Cc: George Spelvin
Cc: MichelLespinasse
Cc: Ingo Molnar
Cc: "H. Peter Anvin"
Cc: Davidlohr Bueso
Cc: Andrew Morton
Signed-off-by: Peter Zijlstra
[ Fixed build bug. ]
Signed-off-by: Ingo Molnar
31 Jan, 2014
1 commit
-
Pull OpenRISC updates from Jonas Bonn:
"The interesting change here is a rework of the OpenRISC signal
handling to make it more like other architectures in the hopes that
this makes it easier for others to comment on and understand. This
rework fixes some real bugs, like the fact that syscall restart did
not work reliably"* tag 'for-3.14' of git://openrisc.net/~jonas/linux:
openrisc: Use get_signal() signal_setup_done()
openrisc: Rework signal handling
09 Jan, 2014
2 commits
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Use the more generic functions get_signal() signal_setup_done()
for signal delivery.Signed-off-by: Richard Weinberger
Signed-off-by: Jonas Bonn -
The mainline signal handling code for OpenRISC has been buggy since day
one with respect to syscall restart. This patch significantly reworks
the signal handling code:i) Move the "work pending" loop to C code (borrowed from ARM arch)
ii) Allow a tracer to muck about with the IP and skip syscall restart
in that case (again, borrowed from ARM)iii) Make signal handling WRT syscall restart actually work
v) Make the signal handling code look more like that of other
architectures so that it's easier for others to followReported-by: Anders Nystrom
Signed-off-by: Jonas Bonn
18 Dec, 2013
1 commit
-
Reported-by: Stephen Rothwell
Signed-off-by: David S. Miller
16 Nov, 2013
1 commit
-
Pull OpenRISC updates from Jonas Bonn:
- small cleanups to make allmodconfig pass
- defconfig refresh
- a handful of code sanitization patches* tag 'for-3.13' of git://git.openrisc.net/~jonas/linux:
openrisc: Refactor or32_early_setup()
openrisc: Remove unused declaration of __initramfs_start
openrisc: Use the declarations provided by
openrisc: Refresh or1ksim_defconfig for v3.12
openrisc: Refactor 16-bit constant relocation
openrisc: include: asm: Kbuild: add default "vga.h"
openrisc: Makefile: append "-D__linux__" to KBUILD_CFLAGS
15 Nov, 2013
4 commits
-
- Change fdt pointer (passed from head.S) from unsigned int to void *,
which allows to kill a cast, and makes it compatible with __dtb_start.
- Use pr_info(),
- Extract common part.Signed-off-by: Geert Uytterhoeven
Cc: linux@lists.openrisc.net
Signed-off-by: Jonas Bonn -
Signed-off-by: Geert Uytterhoeven
Signed-off-by: Jonas Bonn -
Openrisc's private vmlinux.h duplicates a few definitions that are already
provided by asm-generic/sections.h. The former is used by setup.c only,
while the latter is already used everywhere else.Convert setup.c to use the generic version:
- Include ,
- Remove the (slightly different) extern declarations,
- Remove the no longer needed address-of ('&') operators.Signed-off-by: Geert Uytterhoeven
Signed-off-by: Jonas Bonn -
Signed-off-by: Geert Uytterhoeven
Signed-off-by: Jonas Bonn
