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2012-01-14Merge branch 'for-next' of git://git.infradead.org/users/dhowells/linux-headersLinus Torvalds1-2/+0
* 'for-next' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: Split trivial #if defined(__KERNEL__) && X conditionals UAPI: Don't have a #elif clause in a __KERNEL__ guard in linux/soundcard.h UAPI: Fix AHZ multiple inclusion when __KERNEL__ is removed UAPI: Make linux/patchkey.h easier to parse UAPI: Fix nested __KERNEL__ guards in video/edid.h UAPI: Alter the S390 asm include guards to be recognisable by the UAPI splitter UAPI: Guard linux/cuda.h UAPI: Guard linux/pmu.h UAPI: Guard linux/isdn_divertif.h UAPI: Guard linux/sound.h UAPI: Rearrange definition of HZ in asm-generic/param.h UAPI: Make FRV use asm-generic/param.h UAPI: Make M32R use asm-generic/param.h UAPI: Make MN10300 use asm-generic/param.h UAPI: elf_read_implies_exec() is a kernel-only feature - so hide from userspace UAPI: Don't include linux/compat.h in sparc's asm/siginfo.h UAPI: Fix arch/mips/include/asm/Kbuild to have separate header-y lines
2012-01-11Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pciLinus Torvalds2-10/+0
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits) x86/PCI: Expand the x86_msi_ops to have a restore MSIs. PCI: Increase resource array mask bit size in pcim_iomap_regions() PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT) PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB x86/PCI: amd: factor out MMCONFIG discovery PCI: Enable ATS at the device state restore PCI: msi: fix imbalanced refcount of msi irq sysfs objects PCI: kconfig: English typo in pci/pcie/Kconfig PCI/PM/Runtime: make PCI traces quieter PCI: remove pci_create_bus() xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources sparc/PCI: convert to pci_create_root_bus() sh/PCI: convert to pci_scan_root_bus() for correct root bus resources powerpc/PCI: convert to pci_create_root_bus() powerpc/PCI: split PHB part out of pcibios_map_io_space() ... Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due to the same patches being applied in other branches.
2012-01-10Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds2-2/+2
lib: use generic pci_iomap on all architectures Many architectures don't want to pull in iomap.c, so they ended up duplicating pci_iomap from that file. That function isn't trivial, and we are going to modify it https://lkml.org/lkml/2011/11/14/183 so the duplication hurts. This reduces the scope of the problem significantly, by moving pci_iomap to a separate file and referencing that from all architectures. * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: alpha: drop pci_iomap/pci_iounmap from pci-noop.c mn10300: switch to GENERIC_PCI_IOMAP mn10300: add missing __iomap markers frv: switch to GENERIC_PCI_IOMAP tile: switch to GENERIC_PCI_IOMAP tile: don't panic on iomap sparc: switch to GENERIC_PCI_IOMAP sh: switch to GENERIC_PCI_IOMAP powerpc: switch to GENERIC_PCI_IOMAP parisc: switch to GENERIC_PCI_IOMAP mips: switch to GENERIC_PCI_IOMAP microblaze: switch to GENERIC_PCI_IOMAP arm: switch to GENERIC_PCI_IOMAP alpha: switch to GENERIC_PCI_IOMAP lib: add GENERIC_PCI_IOMAP lib: move GENERIC_IOMAP to lib/Kconfig Fix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig
2012-01-10sparc: make SA_NOMASK a synonym of SA_NODEFERMatt Fleming1-1/+2
Unlike other architectures, sparc currently has no SA_NODEFER definition but only the older SA_NOMASK. Since SA_NOMASK is the historical name for SA_NODEFER, add SA_NODEFER and copy what other architectures do by making SA_NOMASK a synonym for SA_NODEFER. Signed-off-by: Matt Fleming <matt.fleming@intel.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-nextLinus Torvalds4-282/+5
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: sparc32: remove unused file: include/asm/pgtsun4.h sparc32: fix PAGE_SIZE definition sparc32: enable different preemptions models sparc32: support atomic64_t apbuart: fix section mismatch warning sparc32: drop useless preprocessor conditional in atomic_32.h sparc32: drop unused atomic24 support
2012-01-08Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds2-4/+0
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
2012-01-08Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds2-8/+0
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits) reiserfs: Properly display mount options in /proc/mounts vfs: prevent remount read-only if pending removes vfs: count unlinked inodes vfs: protect remounting superblock read-only vfs: keep list of mounts for each superblock vfs: switch ->show_options() to struct dentry * vfs: switch ->show_path() to struct dentry * vfs: switch ->show_devname() to struct dentry * vfs: switch ->show_stats to struct dentry * switch security_path_chmod() to struct path * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb vfs: trim includes a bit switch mnt_namespace ->root to struct mount vfs: take /proc/*/mounts and friends to fs/proc_namespace.c vfs: opencode mntget() mnt_set_mountpoint() vfs: spread struct mount - remaining argument of next_mnt() vfs: move fsnotify junk to struct mount vfs: move mnt_devname vfs: move mnt_list to struct mount vfs: switch pnode.h macros to struct mount * ...
2012-01-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-0/+3
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits) net: pack skb_shared_info more efficiently net_sched: red: split red_parms into parms and vars net_sched: sfq: extend limits cnic: Improve error recovery on bnx2x devices cnic: Re-init dev->stats_addr after chip reset net_sched: Bug in netem reordering bna: fix sparse warnings/errors bna: make ethtool_ops and strings const xgmac: cleanups net: make ethtool_ops const vmxnet3" make ethtool ops const xen-netback: make ops structs const virtio_net: Pass gfp flags when allocating rx buffers. ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call igb: reset PHY after recovering from PHY power down igb: add basic runtime PM support igb: Add support for byte queue limits. e1000: cleanup CE4100 MDIO registers access e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove ...
2012-01-06PCI: SPARC: convert pcibios_set_master() to a non-inlined functionMyron Stowe2-10/+0
This patch converts SPARC's architecture-specific 'pcibios_set_master()' routine to a non-inlined function. This will allow follow on patches to create a generic 'pcibios_set_master()' function using the '__weak' attribute which can be used by all architectures as a default which, if necessary, can then be over- ridden by architecture-specific code. Converting 'pci_bios_set_master()' to a non-inlined function will allow SPARC's 'pcibios_set_master()' implementation to remain architecture-specific after the generic version is introduced and thus, not change current behavior. No functional change. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-03consolidate umode_t declarationsAl Viro2-8/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-12-30sparc32: remove unused file: include/asm/pgtsun4.hSam Ravnborg1-171/+0
sun4 is no longer supported and this file is unused. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-29sparc32: fix PAGE_SIZE definitionSam Ravnborg2-8/+4
Use _AC() in definition of PAGE_SIZE so the same definition can be used in C and assembler. Also use PAGE_SIZE in definition of THREAD_SIZE. This commit kill the following comment: "I have my suspicions... -DaveM" I did not find any clue what this referred to anyway. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-27sparc32: support atomic64_tSam Ravnborg1-0/+2
There is no-one that really require atomic64_t support on sparc32. But several drivers fails to build without proper atomic64 support. And for an allyesconfig build for sparc32 this is annoying. Include the generic atomic64_t support for sparc32. This has a text footprint cost: $size vmlinux (before atomic64_t support) text data bss dec hex filename 3578860 134260 108781 3821901 3a514d vmlinux $size vmlinux (after atomic64_t support) text data bss dec hex filename 3579892 130684 108781 3819357 3a475d vmlinux text increase (3579892 - 3578860) = 1032 bytes data decreases - but I fail to explain why! I have rebuild twice to check my numbers. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-27sparc32: drop useless preprocessor conditional in atomic_32.hSam Ravnborg1-4/+0
arch/sparc/include/asm/atomic_32.h is not exported to userspace. So there is no need to protect code using __KERNEL__. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-27sparc32: drop unused atomic24 supportSam Ravnborg1-100/+0
atomic24 support was used to semaphores in the past - but is no longer used. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12UAPI: Don't include linux/compat.h in sparc's asm/siginfo.hDavid Howells1-2/+0
Don't include linux/compat.h in sparc's asm/siginfo.h as it leads to a circular dependency: asm/siginfo.h -> linux/compat.h -> asm/siginfo.h Signed-off-by: David Howells <dhowells@redhat.com> cc: David S. Miller <davem@davemloft.net> cc: sparclinux@vger.kernel.org
2011-12-08memblock: Fix include breakages caused by 24aa07882bTejun Heo1-8/+0
24aa07882b (memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones) removed arch/x86/include/asm/memblock.h and dropped its inclusion from include/linux/memblock.h which breaks other architectures which depended on the generic memblock.h pulling in the arch specific one. However, the proper fix isn't adding back the asm inclusion. memblock doesn't have any arch dependent part and doesn't need arch specific header file and asm/memblock.h files are either practically empty or contain mostly unrelated arch specific stuff. * In microblaze, sh, powerpc, sparc and openrisc, asm/memblock.h is either empty or just contains unused MEMBLOCK_DBG() macro. Remove them. * In arm and unicore32, asm/memblock.h contains arch specific stuff. Include it directly from its users. It might be a good idea to rename the header file to avoid confusion. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: "H. Peter Anvin" <hpa@zytor.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Michal Simek <monstr@monstr.eu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-12-04sparc: switch to GENERIC_PCI_IOMAPMichael S. Tsirkin2-2/+2
sparc copied pci_iomap from generic code, probably to avoid pulling the rest of iomap.c in. Since that's in a separate file now, we can reuse the common implementation. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-11-21freezer: remove now unused TIF_FREEZETejun Heo2-4/+0
Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-arch@vger.kernel.org
2011-11-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-9/+35
The forcedeth changes had a conflict with the conversion over to atomic u64 statistics in net-next. The libertas cfg.c code had a conflict with the bss reference counting fix by John Linville in net-next. Conflicts: drivers/net/ethernet/nvidia/forcedeth.c drivers/net/wireless/libertas/cfg.c
2011-11-17sparc: Kill custom io_remap_pfn_range().David S. Miller2-8/+32
To handle the large physical addresses, just make a simple wrapper around remap_pfn_range() like MIPS does. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davemJohn W. Linville1-0/+3
Conflicts: include/net/bluetooth/bluetooth.h
2011-11-09net: add wireless TX status socket optionJohannes Berg1-0/+3
The 802.1X EAPOL handshake hostapd does requires knowing whether the frame was ack'ed by the peer. Currently, we fudge this pretty badly by not even transmitting the frame as a normal data frame but injecting it with radiotap and getting the status out of radiotap monitor as well. This is rather complex, confuses users (mon.wlan0 presence) and doesn't work with all hardware. To get rid of that hack, introduce a real wifi TX status option for data frame transmissions. This works similar to the existing TX timestamping in that it reflects the SKB back to the socket's error queue with a SCM_WIFI_STATUS cmsg that has an int indicating ACK status (0/1). Since it is possible that at some point we will want to have TX timestamping and wifi status in a single errqueue SKB (there's little point in not doing that), redefine SO_EE_ORIGIN_TIMESTAMPING to SO_EE_ORIGIN_TXSTATUS which can collect more than just the timestamp; keep the old constant as an alias of course. Currently the internal APIs don't make that possible, but it wouldn't be hard to split them up in a way that makes it possible. Thanks to Neil Horman for helping me figure out the functions that add the control messages. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds1-1/+3
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Hook up process_vm_{readv,writev} syscalls.
2011-11-01sparc: Hook up process_vm_{readv,writev} syscalls.David S. Miller1-1/+3
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-31sparc: remove several unnecessary module.h include instancesPaul Gortmaker1-1/+0
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>
2011-10-28compat: sync compat_stats with statfs.Eric W. Biederman1-1/+2
This was found by inspection while tracking a similar bug in compat_statfs64, that has been fixed in mainline since decemeber. - This fixes a bug where not all of the f_spare fields were cleared on mips and s390. - Add the f_flags field to struct compat_statfs - Copy f_flags to userspace in case someone cares. - Use __clear_user to copy the f_spare field to userspace to ensure that all of the elements of f_spare are cleared. On some architectures f_spare is has 5 ints and on some architectures f_spare only has 4 ints. Which makes the previous technique of clearing each int individually broken. I don't expect anyone actually uses the old statfs system call anymore but if they do let them benefit from having the compat and the native version working the same. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-10-07sparc32,leon: SRMMU MMU Table probe fixDaniel Hellstrom1-1/+1
The LEON MMU Model (SRMMU) does not implement MMu Table probing in hardware, instead it is implemented in software. However the software implementation does not return the PTE as it should which always results in INVALID entires and the PROM mappings are not inherited as they should during startup. The following patch removes the masking of the PTE. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-16sparc64: Future proof Niagara cpu detection.David S. Miller2-1/+5
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>
2011-08-20sparc: Allow handling signals when stack is corrupted.David S. Miller1-0/+14
If we can't push the pending register windows onto the user's stack, we disallow signal delivery even if the signal would be delivered on a valid seperate signal stack. Add a register window save area in the signal frame, and store any unsavable windows there. On sigreturn, if any windows are still queued up in the signal frame, try to push them back onto the stack and if that fails we kill the process immediately. This allows the debug/tst-longjmp_chk2 glibc test case to pass. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-15sparc32: unbreak arch_write_unlock()Mikael Pettersson1-2/+9
The sparc32 version of arch_write_unlock() is just a plain assignment. Unfortunately this allows the compiler to schedule side-effects in a protected region to occur after the HW-level unlock, which is broken. E.g., the following trivial test case gets miscompiled: #include <linux/spinlock.h> rwlock_t lock; int counter; void foo(void) { write_lock(&lock); ++counter; write_unlock(&lock); } Fixed by adding a compiler memory barrier to arch_write_unlock(). The sparc64 version combines the barrier and assignment into a single asm(), and implements the operation as a static inline, so that's what I did too. Compile-tested with sparc32_defconfig + CONFIG_SMP=y. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-15sparc64: remove unnecessary macros from spinlock_64.hMikael Pettersson1-6/+0
The sparc64 spinlock_64.h contains a number of operations defined first as static inline functions, and then as macros with the same names and parameters as the functions. Maybe this was needed at some point in the past, but now nothing seems to depend on these macros (checked with a recursive grep looking for ifdefs on these names). Other archs don't define these identity-macros. So this patch deletes these unnecessary macros. Compile-tested with sparc64_defconfig. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds9-113/+79
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Size mondo queues more sanely. sparc: Access kernel TSB using physical addressing when possible. sparc: Fix __atomic_add_unless() return value. sparc: use kbuild-generic support for true asm-generic header files sparc: Use popc when possible for ffs/__ffs/ffz. sparc: Set reboot-cmd using reboot data hypervisor call if available. sparc: Add some missing hypervisor API groups. sparc: Use hweight64() in popc emulation. sparc: Use popc if possible for hweight routines. sparc: Minor tweaks to Niagara page copy/clear. sparc: Sanitize cpu feature detection and reporting.
2011-08-05sparc: Access kernel TSB using physical addressing when possible.David S. Miller1-27/+24
On sun4v this is basically required since we point the hypervisor and the TSB walking hardware at these tables using physical addressing too. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-04sparc: use kbuild-generic support for true asm-generic header filesSam Ravnborg5-9/+5
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02sparc: Use popc when possible for ffs/__ffs/ffz.David S. Miller1-3/+4
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02sparc: Set reboot-cmd using reboot data hypervisor call if available.David S. Miller1-0/+7
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02sparc: Add some missing hypervisor API groups.David S. Miller1-0/+6
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02sparc: Use popc if possible for hweight routines.David S. Miller1-38/+4
Just like powerpc, we code patch at boot time. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-29Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6Linus Torvalds1-1/+1
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: remove printks about disabled bridge windows PCI: fold pci_calc_resource_flags() into decode_bar() PCI: treat mem BAR type "11" (reserved) as 32-bit, not 64-bit, BAR PCI: correct pcie_set_readrq write size PCI: pciehp: change wait time for valid configuration access x86/PCI: Preserve existing pci=bfsort whitelist for Dell systems PCI: ARI is a PCIe v2 feature x86/PCI: quirks: Use pci_dev->revision PCI: Make the struct pci_dev * argument of pci_fixup_irqs const. PCI hotplug: cpqphp: use pci_dev->vendor PCI hotplug: cpqphp: use pci_dev->subsystem_{vendor|device} x86/PCI: config space accessor functions should not ignore the segment argument PCI: Assign values to 'pci_obff_signal_type' enumeration constants x86/PCI: reduce severity of host bridge window conflict warnings PCI: enumerate the PCI device only removed out PCI hieratchy of OS when re-scanning PCI PCI: PCIe AER: add aer_recover_queue x86/PCI: select direct access mode for mmconfig option PCI hotplug: Rename is_ejectable which also exists in dock.c
2011-07-28sparc: Sanitize cpu feature detection and reporting.David S. Miller1-36/+29
Instead of evaluating the cpu features for ELF_HWCAP every exec, calculate it once at boot time. Add AV_SPARC_* capability flag bits, compatible with what Solaris reports to applications. Report these capabilities once in the kernel log, and also via /proc/cpuinfo in a new "cpucaps" entry. If available, fetch the cpu features from the machine description 'hwcap-list' property of the 'cpu' node. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-27sparc: Detect and handle UltraSPARC-T3 cpu types.David S. Miller2-3/+6
The cpu compatible string we look for is "SPARC-T3". As far as memset/memcpy optimizations go, we treat this chip the same as Niagara-T2/T2+. Use cache initializing stores for memset, and use perfetch, FPU block loads, cache initializing stores, and block stores for copies. We use the Niagara-T2 perf support, since T3 is a close relative in this regard. Later we'll add support for the new events T3 can report, plus enable T3's new "sample" mode. For now I haven't added any new ELF hwcap flags. We probably need to add a couple, for example: T2 and T3 both support the population count instruction in hardware. T3 supports VIS3 instructions, including support (finally) for partitioned shift. One can also now move directly between float and integer registers. T3 supports instructions meant to help with Galois Field and other HPC calculations, such as XOR multiply. Also there are "OP and negate" instructions, for example "fnmul" which is multiply-and-negate. T3 recognizes the transactional memory opcodes, however since transactional memory isn't supported: 1) 'commit' behaves as a NOP and 2) 'chkpt' always branches 3) 'rdcps' returns all zeros and 4) 'wrcps' behaves as a NOP. So we'll need about 3 new elf capability flags in the end to represent all of these things. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-27sparc: Add T3 sun4v cpu type and hypervisor group defines.David S. Miller2-0/+2
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-26atomic: cleanup asm-generic atomic*.h inclusionArun Sharma2-2/+0
After changing all consumers of atomics to include <linux/atomic.h>, we ran into some compile time errors due to this dependency chain: linux/atomic.h -> asm/atomic.h -> asm-generic/atomic-long.h where atomic-long.h could use funcs defined later in linux/atomic.h without a prototype. This patches moves the code that includes asm-generic/atomic*.h to linux/atomic.h. Archs that need <asm-generic/atomic64.h> need to select CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it unconditionally). Compile tested on i386 and x86_64 with allnoconfig. Signed-off-by: Arun Sharma <asharma@fb.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26atomic: move atomic_add_unless to generic codeArun Sharma2-3/+3
This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma <asharma@fb.com> Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26atomic: use <linux/atomic.h>Arun Sharma5-5/+3
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26asm-generic: add another generic ext2 atomic bitopsAkinobu Mita1-4/+1
The majority of architectures implement ext2 atomic bitops as test_and_{set,clear}_bit() without spinlock. This adds this type of generic implementation in ext2-atomic-setbit.h and use it wherever possible. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Suggested-by: Andreas Dilger <adilger@dilger.ca> Suggested-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26ptrace: unify show_regs() prototypeMike Frysinger1-2/+0
[ poleg@redhat.com: no need to declare show_regs() in ptrace.h, sched.h does this ] Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-25Merge 'akpm' patch seriesLinus Torvalds2-21/+70
* Merge akpm patch series: (122 commits) drivers/connector/cn_proc.c: remove unused local Documentation/SubmitChecklist: add RCU debug config options reiserfs: use hweight_long() reiserfs: use proper little-endian bitops pnpacpi: register disabled resources drivers/rtc/rtc-tegra.c: properly initialize spinlock drivers/rtc/rtc-twl.c: check return value of twl_rtc_write_u8() in twl_rtc_set_time() drivers/rtc: add support for Qualcomm PMIC8xxx RTC drivers/rtc/rtc-s3c.c: support clock gating drivers/rtc/rtc-mpc5121.c: add support for RTC on MPC5200 init: skip calibration delay if previously done misc/eeprom: add eeprom access driver for digsy_mtc board misc/eeprom: add driver for microwire 93xx46 EEPROMs checkpatch.pl: update $logFunctions checkpatch: make utf-8 test --strict checkpatch.pl: add ability to ignore various messages checkpatch: add a "prefer __aligned" check checkpatch: validate signature styles and To: and Cc: lines checkpatch: add __rcu as a sparse modifier checkpatch: suggest using min_t or max_t ... Did this as a merge because of (trivial) conflicts in - Documentation/feature-removal-schedule.txt - arch/xtensa/include/asm/uaccess.h that were just easier to fix up in the merge than in the patch series.
2011-07-25sparc64: add support for _PAGE_SPECIALDavid S. Miller1-4/+11
Luckily there are still a few software PTE bits remaining and they even match up in both the sun4u and sun4v pte layouts. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>