- 22 May, 2012 3 commits
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Kim Phillips authored
setting CONFIG_IRQ_ALL_CPUS distributes IRQs to CPUs only when the number of online CPUs equals NR_CPUS. See commit 280ff974 "sparc64: fix and optimize irq distribution" for more details. Using the online mask fixes IRQ-to-CPU distribution on systems that boot with less than NR_CPUS. Signed-off-by:
Kim Phillips <kim.phillips@freescale.com> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
This reverts commit 1b788400. It causes oopses when passed incorrect arguments and has a design fault using IPIs with interrupts disabled. Signed-off-by:
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Anshuman Khandual authored
-- Signed-off-by:
Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by:
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- 16 May, 2012 12 commits
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Kent Yoder authored
This patch adds the cas bits to advertise support for the Platform Facilities Option (PFO) based encryption accelerator device. The nx device driver provides support for this hardware feature. Signed-off-by:
Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by:
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Kent Yoder authored
These files support configuring and building the nx device driver. Signed-off-by:
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Kent Yoder authored
These routines add debugfs files supporting the Power7+ in-Nest encryption accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for SHA-512 hashing on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for SHA-256 hashing on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for AES in XCBC mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for AES in GCM mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for AES in ECB mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for AES in CTR mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for AES in CCM mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add support for AES in CBC mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by:
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Kent Yoder authored
These routines add the base device driver code supporting the Power7+ in-Nest encryption accelerator (nx) device. Signed-off-by:
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- 14 May, 2012 8 commits
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Kent Yoder authored
This patch adds the cas bits to advertise support for the Platform Facilities Option (PFO) based random number generator accerator. The pseries-rng driver provides support for this hardware feature. Signed-off-by:
Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by:
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Kent Yoder authored
Adds support for the Platform Facilities Option (PFO)-based hardware random number generator for POWER hardware. Signed-off-by:
Michael Neuling <mikey@neuling.org> Signed-off-by:
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Kent Yoder authored
Add support for the Platform Facilities Option (PFO) to the VIO bus. These devices have a separate root node in OpenFirmware which requires additional parsing to map into the existing VIO device structure fields. This adds the interface for PFO device drivers to make synchronous hypervisor calls. Signed-off-by:
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Kent Yoder authored
This adds an update notifier mechanism for changes to properties in the device tree. One use of this would be a device driver that needs to act on changes to it's properties in the device tree after a live migration or a dynamic activation that is triggered by updates to ofdt properties. Signed-off-by:
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Kent Yoder authored
The Platform Facilities Option (PFO) adds several new h_calls and more return codes. Signed-off-by:
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K.Prasad authored
PPC_PTRACE_GETHWDBGINFO, PPC_PTRACE_SETHWDEBUG and PPC_PTRACE_DELHWDEBUG are PowerPC specific ptrace flags that use the watchpoint register. While they are targeted primarily towards BookE users, user-space applications such as GDB have started using them for BookS too. This patch enables the use of generic hardware breakpoint interfaces for these new flags. Apart from the usual benefits of using generic hw-breakpoint interfaces, these changes allow debuggers (such as GDB) to use a common set of ptrace flags for their watchpoint needs and allow more precise breakpoint specification (length of the variable can be specified). Signed-off-by:
K.Prasad <prasad@linux.vnet.ibm.com> Acked-by:
David Gibson <david@gibson.dropbear.id.au> Signed-off-by:
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Robert Jennings authored
This patch changes the architecture vector to advertise support for a lower minimum virtual processor entitled capacity. The default minimum without this patch is 10%, this patch specifies 1%. Signed-off-by:
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Benjamin Herrenschmidt authored
We want the irq fixes from the "merge" branch.
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- 11 May, 2012 3 commits
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Benjamin Herrenschmidt authored
So we have another case of paca->irq_happened getting out of sync with the HW irq state. This can happen when a perfmon interrupt occurs while soft disabled, as it will return to a soft disabled but hard enabled context while leaving a stale PACA_IRQ_HARD_DIS flag set. This patch fixes it, and also adds a test for the condition of those flags being out of sync in arch_local_irq_restore() when CONFIG_TRACE_IRQFLAGS is enabled. This helps catching those gremlins faster (and so far I can't seem see any anymore, so that's good news). Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommuLinus Torvalds authored
Pull a m68knommu fix from Greg Ungerer: "It contains a single fix for including the ColdFire QSPI interface setup code when enabled as a module. This was broken in the consolidation of the ColdFire SoC device tables in the 3.4 merge window." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: enable qspi support when SPI_COLDFIRE_QSPI = m
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Hugh Dickins authored
Why is there less MemFree than there used to be? It perturbed a test, so I've just been bisecting linux-next, and now find the offender went upstream yesterday. Commit 93278814 "mm: fix division by 0 in percpu_pagelist_fraction()" mistakenly initialized percpu_pagelist_fraction to the sysctl's minimum 8, which leaves 1/8th of memory on percpu lists (on each cpu??); but most of us expect it to be left unset at 0 (and it's not then used as a divisor). MemTotal: 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB Repetitive test with percpu_pagelist_fraction 8: MemFree: 6948420kB 6237172kB 6949696kB 6840692kB 6949048kB 6862984kB Same test with percpu_pagelist_fraction back to 0: MemFree: 7945000kB 7944908kB 7948568kB 7949060kB 7948796kB 7948812kB Signed-off-by:
Hugh Dickins <hughd@google.com> [ We really should fix the crazy sysctl interface too, but that's a separate thing - Linus ] Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 10 May, 2012 14 commits
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Linus Torvalds authored
Merge PA-RISC compile fixes from Rolf Eike Beer: "Since commit d66acc39 ("bitops: Optimise get_order()") getorder.h includes log2.h which leads to an include loop on PA-RISC, bringing a bunch of other breakage to light. This patchset fixes the compilation of the current state of 3.4 on HPPA. Unchanged against the first version, just added an Ack by Grant." * emailed from Rolf Eike Beer <eike-kernel@sf-tec.de>: (5 patches) parisc: move definition of PAGE0 to asm/page.h parisc: add missing include of asm/page.h to asm/pgtable.h parisc: drop include of asm/pdc.h from asm/hardware.h parisc: add missing forward declarations in asm/hardware.h parisc: add missing includes in asm/spinlock.h
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Linus Torvalds authored
Merge misc fixes from Andrew Morton. * emailed from Andrew Morton <akpm@linux-foundation.org>: (8 patches) MAINTAINERS: add maintainer for LED subsystem mm: nobootmem: fix sign extend problem in __free_pages_memory() drivers/leds: correct __devexit annotations memcg: free spare array to avoid memory leak namespaces, pid_ns: fix leakage on fork() failure hugetlb: prevent BUG_ON in hugetlb_fault() -> hugetlb_cow() mm: fix division by 0 in percpu_pagelist_fraction() proc/pid/pagemap: correctly report non-present ptes and holes between vmas
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Rolf Eike Beer authored
This was defined in asm/pdc.h which needs to include asm/page.h for __PAGE_OFFSET. This leads to an include loop so that page.h eventually will include pdc.h again. While this is no problem because of header guards, it is a problem because some symbols may be undefined. Such an error is this: In file included from include/linux/bitops.h:35:0, from include/asm-generic/getorder.h:7, from arch/parisc/include/asm/page.h:162, from arch/parisc/include/asm/pdc.h:346, from arch/parisc/include/asm/processor.h:16, from arch/parisc/include/asm/spinlock.h:6, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from include/linux/sysfs.h:20, from include/linux/kobject.h:21, from include/linux/device.h:17, from include/linux/eisa.h:5, from arch/parisc/kernel/pci.c:11: arch/parisc/include/asm/bitops.h: In function ‘set_bit’: arch/parisc/include/asm/bitops.h:82:2: error: implicit declaration of function ‘_atomic_spin_lock_irqsave’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/bitops.h:84:2: error: implicit declaration of function ‘_atomic_spin_unlock_irqrestore’ [-Werror=implicit-function-declaration] Signed-off-by:Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by:
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Rolf Eike Beer authored
Fixes these errors: In file included from arch/parisc/include/asm/io.h:5:0, from include/linux/io.h:22, from include/linux/pci.h:54, from arch/parisc/kernel/setup.c:35: arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef] arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef] arch/parisc/include/asm/pgtable.h:92:6: warning: "BITS_PER_PTE_ENTRY" is not defined [-Wundef] Signed-off-by: -
Rolf Eike Beer authored
It seems none of the symbols defined by pdc.h is needed, but it introduces an include loop causing compile errors: In file included from arch/parisc/include/asm/spinlock.h:4:0, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:56, from include/linux/bitops.h:35, from include/asm-generic/getorder.h:7, from arch/parisc/include/asm/page.h:162, from arch/parisc/include/asm/pdc.h:346, from arch/parisc/include/asm/hardware.h:5, from arch/parisc/kernel/hardware.c:30: arch/parisc/include/asm/processor.h:74:16: error: field ‘cpu_type’ has incomplete type arch/parisc/include/asm/processor.h:77:20: error: field ‘model’ has incomplete type arch/parisc/include/asm/processor.h: In function ‘parisc_requires_coherency’: arch/parisc/include/asm/processor.h:349:36: error: ‘mako’ undeclared (first use in this function) arch/parisc/include/asm/processor.h:349:36: note: each undeclared identifier is reported only once for each function it appears in arch/parisc/include/asm/processor.h:350:30: error: ‘mako2’ undeclared (first use in this function) Signed-off-by:Grant Grundler <grantgrundler@gmail.com> Signed-off-by:
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Rolf Eike Beer authored
Fixes this warnings: In file included from arch/parisc/include/asm/processor.h:15:0, from arch/parisc/include/asm/spinlock.h:4, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:11, from include/linux/bitops.h:22, from include/linux/kernel.h:19, from include/linux/sched.h:55, from arch/parisc/kernel/asm-offsets.c:31: arch/parisc/include/asm/hardware.h:106:10: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:106:10: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] arch/parisc/include/asm/hardware.h:116:59: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:118:47: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:119:57: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] Signed-off-by: -
Rolf Eike Beer authored
This leads to this errors: In file included from arch/parisc/include/asm/atomic.h:20:0, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:56, from include/linux/bitops.h:22, from include/linux/kernel.h:19, from include/linux/sched.h:55, from arch/parisc/kernel/asm-offsets.c:31: arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_is_locked’: arch/parisc/include/asm/spinlock.h:9:2: error: implicit declaration of function ‘__ldcw_align’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/spinlock.h:9:29: warning: initialization makes pointer from integer without a cast [enabled by default] arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_lock_flags’: arch/parisc/include/asm/spinlock.h:22:2: error: implicit declaration of function ‘mb’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/spinlock.h:23:4: warning: assignment makes pointer from integer without a cast [enabled by default] arch/parisc/include/asm/spinlock.h:24:2: error: implicit declaration of function ‘__ldcw’ [-Werror=implicit-function-declaration] Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
Pull a sparc fix from David Miller. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().
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Bryan Wu authored
Add Bryan Wu as the primary maintainer for drivers/leds Signed-off-by:
Bryan Wu <bryan.wu@canonical.com> Acked-by:
Richard Purdie <richard.purdie@linuxfoundation.org> Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Russ Anderson authored
Systems with 8 TBytes of memory or greater can hit a problem where only the the first 8 TB of memory shows up. This is due to "int i" being smaller than "unsigned long start_aligned", causing the high bits to be dropped. The fix is to change `i' to unsigned long to match start_aligned and end_aligned. Thanks to Jack Steiner for assistance tracking this down. Signed-off-by:
Russ Anderson <rja@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Tejun Heo <tj@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Gavin Shan <shangw@linux.vnet.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Arnd Bergmann authored
__devexit functions are discarded without CONFIG_HOTPLUG, so they need to be referenced carefully. A __devexit function may also not be called from a __devinit function. Signed-off-by:
Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by:
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Sha Zhengju authored
When the last event is unregistered, there is no need to keep the spare array anymore. So free it to avoid memory leak. Signed-off-by:
Sha Zhengju <handai.szj@taobao.com> Acked-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by:
Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by:
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Mike Galbraith authored
Fork() failure post namespace creation for a child cloned with CLONE_NEWPID leaks pid_namespace/mnt_cache due to proc being mounted during creation, but not unmounted during cleanup. Call pid_ns_release_proc() during cleanup. Signed-off-by:
Mike Galbraith <efault@gmx.de> Acked-by:
Oleg Nesterov <oleg@redhat.com> Reviewed-by:
"Eric W. Biederman" <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Louis Rilling <louis.rilling@kerlabs.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Chris Metcalf authored
Commit 66aebce7 ("hugetlb: fix race condition in hugetlb_fault()") added code to avoid a race condition by elevating the page refcount in hugetlb_fault() while calling hugetlb_cow(). However, one code path in hugetlb_cow() includes an assertion that the page count is 1, whereas it may now also have the value 2 in this path. The consensus is that this BUG_ON has served its purpose, so rather than extending it to cover both cases, we just remove it. Signed-off-by:
Chris Metcalf <cmetcalf@tilera.com> Acked-by:
Mel Gorman <mel@csn.ul.ie> Acked-by:
Hillf Danton <dhillf@gmail.com> Acked-by:
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