- 18 Jun, 2015 4 commits
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Tejun Heo authored
v2: Rearranged paragraphs as suggested by Johannes Weiner. Signed-off-by:
Tejun Heo <tj@kernel.org> Acked-by:
Johannes Weiner <hannes@cmpxchg.org>
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Tejun Heo authored
On traditional hierarchies, if a task has write access to "tasks" or "cgroup.procs" file of a cgroup and its euid agrees with the target, it can move the target to the cgroup; however, consider the following scenario. The owner of each cgroup is in the parentheses. R (root) - 0 (root) - 00 (user1) - 000 (user1) | \ 001 (user1) \ 1 (root) - 10 (user1) The subtrees of 00 and 10 are delegated to user1; however, while both subtrees may belong to the same user, it is clear that the two subtrees are to be isolated - they're under completely separate resource limits imposed by 0 and 1, respectively. Note that 0 and 1 aren't strictly necessary but added to ease illustrating the issue. If user1 is allowed to move processes between the two subtrees, the intention of the hierarchy - keeping a given group of processes under a subtree with certain resource restrictions while delegating management of the subtree - can be circumvented by user1. This happens because migration permission check doesn't consider the hierarchical nature of cgroups. To fix the issue, this patch adds an extra permission requirement when userland tries to migrate a process in the default hierarchy - the issuing task must have write access to the common ancestor of "cgroup.procs" file of the ancestor in addition to the destination's. Conceptually, the issuer must be able to move the target process from the source cgroup to the common ancestor of source and destination cgroups and then to the destination. As long as delegation is done in a proper top-down way, this guarantees that a delegatee can't smuggle processes across disjoint delegation domains. The next patch will add documentation on the delegation model on the default hierarchy. v2: Fixed missing !ret test. Spotted by Li Zefan. Signed-off-by:
Tejun Heo <tj@kernel.org> Acked-by:
Johannes Weiner <hannes@cmpxchg.org> Cc: Li Zefan <lizefan@huawei.com>
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Tejun Heo authored
Separate out task / process migration permission check from __cgroup_procs_write() into cgroup_procs_write_permission(). * Permission check is moved right above the actual migration and no longer performed while holding rcu_read_lock(). cgroup_procs_write_permission() uses get_task_cred() / put_cred() instead of __task_cred(). Also, !root trying to migrate kthreadd or PF_NO_SETAFFINITY tasks will now fail with -EINVAL rather than -EACCES which should be fine. * The same permission check is now performed even when moving self by specifying 0 as pid. This always succeeds so there's no functional difference. We'll add more permission checks later and the benefits of keeping both cases consistent outweigh the minute overhead of doing perm checks on pid 0 case. Signed-off-by:
Tejun Heo <tj@kernel.org>
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Tejun Heo authored
Move kernfs_get_inode() prototype from fs/kernfs/kernfs-internal.h to include/linux/kernfs.h. It obtains the matching inode for a kernfs_node. It will be used by cgroup for inode based permission checks for now but is generally useful. Signed-off-by:
Tejun Heo <tj@kernel.org> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 15 Jun, 2015 1 commit
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Tejun Heo authored
Add Johannes Weiner as a co-maintainer of cgroup core. Johannes has been heavily involved with the design of the v2 interface and is familiar with design and implementation of cgroup core. Signed-off-by:
Tejun Heo <tj@kernel.org> Acked-by:
Li Zefan <lizefan@huawei.com> Cc: Johannes Weiner <hannes@cmpxchg.org>
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- 10 Jun, 2015 1 commit
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Aleksa Sarai authored
Fix the fact that @ssid is uninitialised in the case where CGROUP_SUBSYS_COUNT = 0 by setting ssid to 0. Fixes: cb4a3167 ("cgroup: use bitmask to filter for_each_subsys") Signed-off-by:
Aleksa Sarai <cyphar@cyphar.com> Signed-off-by:
Tejun Heo <tj@kernel.org>
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- 08 Jun, 2015 2 commits
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Aleksa Sarai authored
Replace the explicit checking against ss_masks inside a for_each_subsys block with for_each_subsys_which(..., ss_mask), to take advantage of the more readable (and more efficient) macro. Signed-off-by:
Aleksa Sarai <cyphar@cyphar.com>
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Aleksa Sarai authored
Add a new macro for_each_subsys_which that allows all enabled cgroup subsystems to be filtered by a bitmask, such that mask & (1 << ssid) determines if the subsystem is to be processed in the loop body (where ssid is the unique id of the subsystem). Also replace the need_forkexit_callback with two separate bitmasks for each callback to make (ss->{fork,exit}) checks unnecessary. tj: add a short comment for "if (!CGROUP_SUBSYS_COUNT)". Signed-off-by:
Aleksa Sarai <cyphar@cyphar.com>
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- 29 May, 2015 1 commit
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Arnd Bergmann authored
Recent header file changes for cgroup caused lots of warnings about a missing struct seq_file form declaration for every inclusion of include/linux/cgroup-defs.h. As some files are built with -Werror, this leads to build failure like: from /git/arm-soc/drivers/gpu/drm/tilcdc/tilcdc_crtc.c:18: /git/arm-soc/include/linux/cgroup-defs.h:354:25: error: 'struct seq_file' declared inside parameter list [-Werror] cc1: all warnings being treated as errors make[6]: *** [drivers/gpu/drm/tilcdc/tilcdc_crtc.o] Error 1 This patch adds the declaration, which resolves both the warnings and the drm failure. tj: Moved it where other type declarations are. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: b4a04ab7 ("cgroup: separate out include/linux/cgroup-defs.h") Signed-off-by:
Tejun Heo <tj@kernel.org>
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- 27 May, 2015 3 commits
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Tejun Heo authored
Now that threadgroup locking is made global, code paths around it can be simplified. * lock-verify-unlock-retry dancing removed from __cgroup_procs_write(). * Race protection against de_thread() removed from cgroup_update_dfl_csses(). Signed-off-by:
Tejun Heo <tj@kernel.org>
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Tejun Heo authored
The cgroup side of threadgroup locking uses signal_struct->group_rwsem to synchronize against threadgroup changes. This per-process rwsem adds small overhead to thread creation, exit and exec paths, forces cgroup code paths to do lock-verify-unlock-retry dance in a couple places and makes it impossible to atomically perform operations across multiple processes. This patch replaces signal_struct->group_rwsem with a global percpu_rwsem cgroup_threadgroup_rwsem which is cheaper on the reader side and contained in cgroups proper. This patch converts one-to-one. This does make writer side heavier and lower the granularity; however, cgroup process migration is a fairly cold path, we do want to optimize thread operations over it and cgroup migration operations don't take enough time for the lower granularity to matter. Signed-off-by:
Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org>
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Tejun Heo authored
threadgroup_change_begin/end() are used to mark the beginning and end of threadgroup modifying operations to allow code paths which require a threadgroup to stay stable across blocking operations to synchronize against those sections using threadgroup_lock/unlock(). It's currently implemented as a general mechanism in sched.h using per-signal_struct rwsem; however, this never grew non-cgroup use cases and becomes noop if !CONFIG_CGROUPS. It turns out that cgroups is gonna be better served with a different sycnrhonization scheme and is a bit silly to keep cgroups specific details as a general mechanism. What's general here is identifying the places where threadgroups are modified. This patch restructures threadgroup locking so that threadgroup_change_begin/end() become a place where subsystems which need to sycnhronize against threadgroup changes can hook into. cgroup_threadgroup_change_begin/end() which operate on the per-signal_struct rwsem are created and threadgroup_lock/unlock() are moved to cgroup.c and made static. This is pure reorganization which doesn't cause any functional changes. Signed-off-by:
Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org>
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- 18 May, 2015 3 commits
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Aleksa Sarai authored
Switch the type of all internal cgroup masks to (unsigned long), which is the correct type for bitmasks. This is in preparation for the for_each_subsys_which patch. Signed-off-by:
Aleksa Sarai <cyphar@cyphar.com> Signed-off-by:
Tejun Heo <tj@kernel.org>
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Tejun Heo authored
From c4d440938b5e2015c70594fe6666a099c844f929 Mon Sep 17 00:00:00 2001 From: Tejun Heo <tj@kernel.org> Date: Wed, 13 May 2015 16:21:40 -0400 Over time, cgroup.h grew organically and doesn't have much logical structure at this point. Separation of cgroup-defs.h in the previous patch gives us a good chance for reorganizing cgroup.h as changes to the header are likely to cause conflicts anyway. This patch reorganizes cgroup.h so that it has consistent logical grouping. This is pure reorganization. v2: Relocating #ifdef CONFIG_CGROUPS caused build failure when cgroup is disabled. Dropped. Signed-off-by:
Tejun Heo <tj@kernel.org>
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Tejun Heo authored
From 2d728f74bfc071df06773e2fd7577dd5dab6425d Mon Sep 17 00:00:00 2001 From: Tejun Heo <tj@kernel.org> Date: Wed, 13 May 2015 15:37:01 -0400 This patch separates out cgroup-defs.h from cgroup.h which has grown a lot of dependencies. cgroup-defs.h currently only contains constant and type definitions and can be used to break circular include dependency. While moving, definitions are reordered so that cgroup-defs.h has consistent logical structure. This patch is pure reorganization. Signed-off-by:
Tejun Heo <tj@kernel.org>
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- 23 Apr, 2015 1 commit
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Chen Hanxiao authored
s/effctive/effective s/hierarhcy/hierarchy s/shoulid/should Signed-off-by:
Chen Hanxiao <chenhanxiao@cn.fujitsu.com> Signed-off-by:
Tejun Heo <tj@kernel.org>
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- 22 Apr, 2015 24 commits
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git://git.infradead.org/users/pcmoore/auditLinus Torvalds authored
Pull audit fixes from Paul Moore: "Seven audit patches for v4.1, all bug fixes. The largest, and perhaps most significant commit helps resolve some memory pressure issues related to the inode cache and audit, there are also a few small commits which help resolve some timing issues with the audit log queue, and the rest fall into the always popular "code clean-up" category. In general, nothing really substantial, just a nice set of maintenance patches" * 'upstream' of git://git.infradead.org/users/pcmoore/audit: audit: Remove condition which always evaluates to false audit: reduce mmap_sem hold for mm->exe_file audit: consolidate handling of mm->exe_file audit: code clean up audit: don't reset working wait time accidentally with auditd audit: don't lose set wait time on first successful call to audit_log_start() audit: move the tree pruning to a dedicated thread
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git://git.infradead.org/linux-mtdLinus Torvalds authored
Pull MTD updates from Brian Norris: "Common MTD: - Add Kconfig option for keeping both the 'master' and 'partition' MTDs registered as devices. This would really make a better default if we could do it over, as it allows a lot more flexibility in (1) determining the flash topology of the system from user-space and (2) adding temporary partitions at runtime (ioctl(BLKPG)). Unfortunately, this would possibly cause user-space breakage, as it will cause renumbering of the /dev/mtdX devices. We'll see if we can change this in the future, as there have already been a few people looking for this feature, and I know others have just been working around our current limitations instead of fixing them this way. - Along with the previous change, add some additional information to sysfs, so user-space can read the offset of each partition within its master device SPI NOR: - add new device tree compatible binding to represent the mostly-compatible class of SPI NOR flash which can be detected by their extended JEDEC ID bytes, cutting down the duplication of our ID tables - misc. new IDs Various other miscellaneous fixes and changes" * tag 'for-linus-20150422' of git://git.infradead.org/linux-mtd: (53 commits) mtd: spi-nor: Add support for Macronix mx25u6435f serial flash mtd: spi-nor: Add support for Winbond w25q64dw serial flash mtd: spi-nor: add support for the Winbond W25X05 flash mtd: spi-nor: support en25s64 device mtd: m25p80: bind to "nor-jedec" ID, for auto-detection Documentation: devicetree: m25p80: add "nor-jedec" binding mtd: Make MTD tests cancelable mtd: mtd_oobtest: Fix bitflip_limit usage in test case 3 mtd: docg3: remove invalid __exit annotations mtd: fsl_ifc_nand: use msecs_to_jiffies for time conversion mtd: atmel_nand: don't map the ROM table if no pmecc table offset in DT mtd: atmel_nand: add a definition for the oob reserved bytes mtd: part: Remove partition overlap checks mtd: part: Add sysfs variable for offset of partition mtd: part: Create the master device node when partitioned mtd: ts5500_flash: Fix typo in MODULE_DESCRIPTION in ts5500_flash.c mtd: denali: Disable sub-page writes in Denali NAND driver mtd: pxa3xx_nand: cleanup wait_for_completion handling mtd: nand: gpmi: Check for scan_bbt() error mtd: nand: gpmi: fixup return type of wait_for_completion_timeout ...
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
Pull InfiniBand/RDMA updates from Roland Dreier: - IPoIB fixes from Doug Ledford and Erez Shitrit - iSER updates from Sagi Grimberg - mlx4 GUID handling changes from Yishai Hadas - other misc fixes * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (51 commits) mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures IB/iser: Rewrite bounce buffer code path IB/iser: Bump version to 1.6 IB/iser: Remove code duplication for a single DMA entry IB/iser: Pass struct iser_mem_reg to iser_fast_reg_mr and iser_reg_sig_mr IB/iser: Modify struct iser_mem_reg members IB/iser: Make fastreg pool cache friendly IB/iser: Move PI context alloc/free to routines IB/iser: Move fastreg descriptor pool get/put to helper functions IB/iser: Merge build page-vec into register page-vec IB/iser: Get rid of struct iser_rdma_regd IB/iser: Remove redundant assignments in iser_reg_page_vec IB/iser: Move memory reg/dereg routines to iser_memory.c IB/iser: Don't pass ib_device to fall_to_bounce_buff routine IB/iser: Remove a redundant struct iser_data_buf IB/iser: Remove redundant cmd_data_len calculation IB/iser: Fix wrong calculation of protection buffer length IB/iser: Handle fastreg/local_inv completion errors IB/iser: Fix unload during ep_poll wrong dereference ib_srpt: convert printk's to pr_* functions ...
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-clientLinus Torvalds authored
Pull Ceph updates from Sage Weil: "This time around we have a collection of CephFS fixes from Zheng around MDS failure handling and snapshots, support for a new CRUSH straw2 algorithm (to sync up with userspace) and several RBD cleanups and fixes from Ilya, an error path leak fix from Taesoo, and then an assorted collection of cleanups from others" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (28 commits) rbd: rbd_wq comment is obsolete libceph: announce support for straw2 buckets crush: straw2 bucket type with an efficient 64-bit crush_ln() crush: ensuring at most num-rep osds are selected crush: drop unnecessary include from mapper.c ceph: fix uninline data function ceph: rename snapshot support ceph: fix null pointer dereference in send_mds_reconnect() ceph: hold on to exclusive caps on complete directories libceph: simplify our debugfs attr macro ceph: show non-default options only libceph: expose client options through debugfs libceph, ceph: split ceph_show_options() rbd: mark block queue as non-rotational libceph: don't overwrite specific con error msgs ceph: cleanup unsafe requests when reconnecting is denied ceph: don't zero i_wrbuffer_ref when reconnecting is denied ceph: don't mark dirty caps when there is no auth cap ceph: keep i_snap_realm while there are writers libceph: osdmap.h: Add missing format newlines ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing fixes from Steven Rostedt: "This adds three fixes for the tracing code. The first is a bug when ftrace_dump_on_oops is triggered in atomic context and function graph tracer is the tracer that is being reported. The second fix is bad parsing of the trace_events from the kernel command line, where it would ignore specific events if the system name is used with defining the event(it enables all events within the system). The last one is a fix to the TRACE_DEFINE_ENUM(), where a check was missing to see if the ptr was incremented to the end of the string, but the loop increments it again and can miss the nul delimiter to stop processing" * tag 'trace-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Fix possible out of bounds memory access when parsing enums tracing: Fix incorrect enabling of trace events by boot cmdline tracing: Handle ftrace_dump() atomic context in graph_trace_open()
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI fixes from Bjorn Helgaas: "These fix an ia64 regression caused by tighter resource checking we merged during the merge window and remove an invalid email address from MAINTAINERS. Resource management: - ia64: Treat all Address Space Descriptors as windows (Bjorn Helgaas) Miscellaneous: - MAINTAINERS: Remove Mohit Kumar (email bounces) (Bjorn Helgaas)" * tag 'pci-v4.1-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: ia64/PCI: Treat all host bridge Address Space Descriptors (even consumers) as windows MAINTAINERS: Remove Mohit Kumar (email bounces)
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git://www.linux-watchdog.org/linux-watchdogLinus Torvalds authored
Pull watchdog updates from Wim Van Sebroeck: "This contains following changes: - Octeon: convert to watchdog-API and apply some fixes - Cadence wdt: remove dependency on ARCH - add DT bindings for qcom + msm - bcm281xx: Remove use of seq_printf return value - stmp3xxx_rtc_wdt + pnx4008_wdt: fix broken email addresses" * git://www.linux-watchdog.org/linux-watchdog: watchdog: stmp3xxx_rtc_wdt: fix broken email address watchdog: pnx4008_wdt: fix broken email address watchdog: octeon: use fixed length string for register names watchdog: octeon: fix some trivial coding style issues watchdog: octeon: convert to WATCHDOG_CORE API watchdog: cadence: Remove Kconfig dependency on ARCH ARM: msm: add watchdog entries to DT timer binding doc ARM: qcom: add description of KPSS WDT for IPQ8064 watchdog: qcom: use timer devicetree binding watchdog: bcm281xx: Remove use of seq_printf return value
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linuxLinus Torvalds authored
Pull virtio updates from Rusty Russell: "Some virtio internal cleanups, a new virtio device "virtio input", and a change to allow the legacy virtio balloon. Most excitingly, some lguest work! No seriously, I got some cleanup patches" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: virtio: drop virtio_device_is_legacy_only virtio_pci: support non-legacy balloon devices virtio_mmio: support non-legacy balloon devices virtio_ccw: support non-legacy balloon devices virtio: balloon might not be a legacy device virtio_balloon: transitional interface virtio_ring: Update weak barriers to use dma_wmb/rmb virtio_pci_modern: switch to type-safe io accessors virtio_pci_modern: type-safe io accessors lguest: handle traps on the "interrupt suppressed" iret instruction. virtio: drop a useless config read virtio_config: reorder functions Add virtio-input driver. lguest: suppress interrupts for single insn, not range. lguest: simplify lguest_iret lguest: rename i386_head.S in the comments lguest: explicitly set miscdevice's private_data NULL lguest: fix pending interrupt test.
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Brian Norris authored
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linuxLinus Torvalds authored
Pull module updates from Rusty Russell: "Quentin opened a can of worms by adding extable entry checking to modpost, but most architectures seem fixed now. Thanks to all involved. Last minute rebase because I noticed a "[PATCH]" had snuck into a commit message somehow" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: modpost: don't emit section mismatch warnings for compiler optimizations modpost: expand pattern matching to support substring matches modpost: do not try to match the SHT_NUL section. modpost: fix extable entry size calculation. modpost: fix inverted logic in is_extable_fault_address(). modpost: handle -ffunction-sections modpost: Whitelist .text.fixup and .exception.text params: handle quotes properly for values not of form foo="bar". modpost: document the use of struct section_check. modpost: handle relocations mismatch in __ex_table. scripts: add check_extable.sh script. modpost: mismatch_handler: retrieve tosym information only when needed. modpost: factorize symbol pretty print in get_pretty_name(). modpost: add handler function pointer to sectioncheck. modpost: add .sched.text and .kprobes.text to the TEXT_SECTIONS list. modpost: add strict white-listing when referencing sections. module: do not print allocation-fail warning on bogus user buffer size kernel/module.c: fix typos in message about unused symbols
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Linus Torvalds authored
This reverts commit 8d63d99a. It causes in VM mapping refcount errors: page:ffffea0010a15040 count:0 mapcount:1 mapping: (null) index:0x0 flags: 0x8000000000008014(referenced|dirty|tail) page dumped because: VM_BUG_ON_PAGE(page_mapcount(page) != 0) ------------[ cut here ]------------ kernel BUG at mm/swap.c:134! as reported by Borislav Petkov Reported-and-tested-by:
Borislav Petkov <bp@alien8.de> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Hugh Dickins <hughd@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.linaro.org/people/ulf.hansson/mmcLinus Torvalds authored
Pull MMC fixes from Ulf Hansson: "Here is two mmc core fixes for v.4.1 rc1: - fix error code propagation in mmc_pwrseq_simple_alloc() - revert 'mmc: core: Convert mmc_driver to device_driver'" * tag 'mmc-4.1-rc1' of git://git.linaro.org/people/ulf.hansson/mmc: Revert "mmc: core: Convert mmc_driver to device_driver" mmc: pwrseq: Fix error code propagation in mmc_pwrseq_simple_alloc()
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Vinod Koul authored
HSU_DMA is selected by the HSU_DMA_PCI driver, this should be user selected so remove the user prompt for this Signed-off-by:
Vinod Koul <vinod.koul@intel.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC late changes from Olof Johansson: "We were expecting to sit on this branch through most of the merge window since the contents was merged into our tree late, but we ended up sitting on all of our contents so it can go in with the rest. The contents here is: - a large branch of cleanups of the CM/PRM blocks on OMAP. - a couple of patches plumbing up CM/PRM on OMAP5 and DRA7. - a branch with DT updates for Freescale i.MX. including some shuffling from .dts to .dtsi (include) files that causes a little churn" * tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (78 commits) ARM: OMAP2+: Fix booting with configs that don't have MFD_SYSCON ARM: OMAP4+: control: add support for initializing control module via DT ARM: dts: dra7: add minimal l4 bus layout with control module support ARM: dts: omap5: add minimal l4 bus layout with control module support ARM: OMAP4+: control: remove support for legacy pad read/write ARM: OMAP4: display: convert display to use syscon for dsi muxing ARM: dts: omap4: add minimal l4 bus layout with control module support ARM: dts: am4372: add minimal l4 bus layout with control module support ARM: dts: am43xx-epos-evm: fix pinmux node layout ARM: dts: am33xx: add minimal l4 bus layout with control module support ARM: dts: omap3: add minimal l4 bus layout with control module support ARM: dts: omap24xx: add minimal l4 bus layout with control module support ARM: OMAP2+: control: add syscon support for register accesses ARM: OMAP2+: id: cache omap_type value ARM: OMAP2+: control: remove API for getting control module base address ARM: OMAP2+: clock: add low-level support for regmap ARM: OMAP4+: PRM: get rid of cpu_is_omap44xx calls from interrupt init ARM: OMAP4+: PRM: setup prm_features from the PRM init time flags ARM: OMAP2+: CM: move SoC specific init calls within a generic API ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC 64-bit changes from Olof Johansson: "Mostly DT updates for arm64, but also a couple of Kconfig additions. Main contents: - Qualcomm MSM8916/APQ8016 - Spreadtrum SC9836 - Xilinx ZynqMP - pincontrol entries for MediaTek MT8173" * tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: dts: add interrupt-affinity property to pmu node for juno arm64: dts: Add Qualcomm APQ8016 SBC evaluation board dts arm64: dts: Add Qualcomm MSM8916 SoC and evaluation board dts arm64: dts: sprd: adding coresight entries to Spreadtrum SC9836 arm64: Add support for Spreadtrum's Sharkl64 Platform in Kconfig and defconfig arm64: dts: Add support for Spreadtrum SC9836 SoC in dts and Makefile ARM64: Add new Xilinx ZynqMP SoC arm64: qcom: Add support for Qualcomm MSM8916 SoC arm64: dts: mt8173: Add pinctrl/GPIO/EINT node for mt8173. arm64: mediatek: Select PINCTRL for Mediatek platform
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC defconfig updates from Olof Johansson: "We keep collecting defconfig updates in a separate branch mostly to encourage people to handle them separately and avoid conflicts between different topics. Most of these are enablement of new drivers that have come in, or minor config refreshes due to reorderings in Kconfig files, etc. I.e. mostly minor churn of various kinds. We might start folding this branch into something else for upstream merge since it's so small, but keep it independent in our own tree for the above reasons" * tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits) ARM: multi_v7_defconfig: enable alpine platform ARM: multi_v7_defconfig: Add gpio-restart driver ARM: multi_v7_defconfig: Build the Marvell WiFi-Ex driver as a module ARM: multi_v7_defconfig: Enable support for ELAN i2c trackpads ARM: multi_v7_defconfig: Enable Tegra ACTMON support ARM: configs: remove all CONFIG_RCAR_AUDMAC_PP from ARM defconfigs ARM: configs: enable Marvell Armada 39x in multi_v7_defconfig ARM: exynos_defconfig: Enable HDMI support ARM: exynos_defconfig: Enable options to mount a rootfs via NFS ARM: qcom: Increase MMC_BLOCK_MINORS in defconfig ARM: mvebu: Enable perf support in mvebu_v7_defconfig ARM: exynos_defconfig: Enable ChromeOS EC chardev driver ARM: exynos_defconfig: Enable CPU idle ARM: exynos_defconfig: Enable Marvell WiFi-Ex support arm: qcom: Update defconfig arm: qcom: Enable lpass clock driver in defconfig ARM: omap2plus_defconfig: Enable n900 modem as loadable modules ARM: omap2plus_defconfig: Update bluetooth options ARM: omap2plus_defconfig: Enable leds-pwm ARM: omap1_defconfig: drop obsolete Kconfig symbols ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC multiplatform code changes from Olof Johansson: "The changes here belong to two main platforms: - Atmel At91 is flipping the bit and going multiplatform. This includes some cleanups and removal of code, and the final flip of config dependencies - Shmobile has several platforms that are going multiplatform, but this branch also contains a bunch of cleanups that they weren't able to keep separate in a good way. THere's also a removal of one of their SoCs and the corresponding boards (sh7372 and mackerel)" * tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (67 commits) ARM: at91/pm: move AT91_MEMCTRL_* to pm.h ARM: at91/pm: move the standby functions to pm.c ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected ARM: at91: add a Kconfig dependency on multi-platform ARM: at91: drop AT91_TIMER_HZ ARM: at91: remove hardware.h ARM: at91: remove SoC headers ARM: at91: remove useless mach/cpu.h ARM: at91: remove unused headers ARM: at91: switch at91_dt_defconfig to multiplatform ARM: at91: switch to multiplatform ARM: shmobile: r8a7778: enable multiplatform target ARM: shmobile: bockw: add sound to DT ARM: shmobile: r8a7778: add sound to DT ARM: shmobile: bockw: add devices hooked up to i2c0 to DT DT: i2c: add trivial binding for OKI ML86V7667 video decoder ARM: shmobile: r8a7778: common clock framework CPG driver ARM: shmobile: bockw dts: set extal clock frequency ARM: shmobile: bockw dts: Move Ethernet node to BSC ARM: shmobile: r8a73a4: Remove legacy code ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC driver updates from Olof Johansson: "Driver updates for v4.1. Some of these are for drivers/soc, where we find more and more SoC-specific drivers these days. Some are for other driver subsystems where we have received acks from the appropriate maintainers. The larger parts of this branch are: - MediaTek support for their PMIC wrapper interface, a high-level interface for talking to the system PMIC over a dedicated I2C interface. - Qualcomm SCM driver has been moved to drivers/firmware. It's used for CPU up/down and needs to be in a shared location for arm/arm64 common code. - cleanup of ARM-CCI PMU code. - another set of cleanusp to the OMAP GPMC code" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits) soc/mediatek: Remove unused variables clocksource: atmel-st: select MFD_SYSCON soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs arm-cci: Fix CCI PMU event validation arm-cci: Split the code for PMU vs driver support arm-cci: Get rid of secure transactions for PMU driver arm-cci: Abstract the CCI400 PMU specific definitions arm-cci: Rearrange code for splitting PMU vs driver code drivers: cci: reject groups spanning multiple HW PMUs ARM: at91: remove useless include clocksource: atmel-st: remove mach/hardware dependency clocksource: atmel-st: use syscon/regmap ARM: at91: time: move the system timer driver to drivers/clocksource ARM: at91: properly initialize timer ARM: at91: at91rm9200: remove deprecated arm_pm_restart watchdog: at91rm9200: implement restart handler watchdog: at91rm9200: use the system timer syscon mfd: syscon: Add atmel system timer registers definition ARM: at91/dt: declare atmel,at91rm9200-st as a syscon soc: qcom: gsbi: Add support for ADM CRCI muxing ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM DT updates from Olof Johansson: "As always, this tends to be one of our bigger branches. There are lots of updates this release, but not that many jumps out as something that needs more detailed coverage. Some of the highlights are: - DTs for the new Annapurna Labs Alpine platform - more graphics DT pieces falling into place on Exynos, bridges, clocks. - plenty of DT updates for Qualcomm platforms for various IP blocks - some churn on Tegra due to switch-over to tool-generated pinctrl data - misc fixes and updates for Atmel at91 platforms - various DT updates to add IP block support on Broadcom's Cygnus platforms - more updates for Renesas platforms as DT support is added for various IP blocks (IPMMU, display, audio, etc)" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (231 commits) ARM: dts: alpine: add internal pci Revert "ARM: dts: mt8135: Add pinctrl/GPIO/EINT node for mt8135." ARM: mvebu: use 0xf1000000 as internal registers on Armada 370 DB ARM: dts: qcom: Add idle state device nodes for 8064 ARM: dts: qcom: Add idle states device nodes for 8084 ARM: dts: qcom: Add idle states device nodes for 8974/8074 ARM: dts: qcom: Update power-controller device node for 8064 Krait CPUs ARM: dts: qcom: Add power-controller device node for 8084 Krait CPUs ARM: dts: qcom: Add power-controller device node for 8074 Krait CPUs devicetree: bindings: Document qcom,idle-states devicetree: bindings: Update qcom,saw2 node bindings dt-bindings: Add #defines for MSM8916 clocks and resets arm: dts: qcom: Add LPASS Audio HW to IPQ8064 device tree arm: dts: qcom: Add APQ8084 chipset SPMI PMIC's nodes arm: dts: qcom: Add 8x74 chipset SPMI PMIC's nodes arm: dts: qcom: Add SPMI PMIC Arbiter nodes for APQ8084 and MSM8974 arm: dts: qcom: Add LCC nodes arm: dts: qcom: Add TCSR support for MSM8960 arm: dts: qcom: Add TCSR support for MSM8660 arm: dts: qcom: Add TCSR support for IPQ8064 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC platform updates from Olof Johansson: "Our SoC branch usually contains expanded support for new SoCs and other core platform code. In this case, that includes: - support for the new Annapurna Labs "Alpine" platform - a rework greatly simplifying adding new platform support to the MCPM subsystem (Multi-cluster power management) - cpuidle and PM improvements for Exynos3250 - misc updates for Renesas, OMAP, Meson, i.MX. Some of these could have gone in other branches but ended up here for various reasons" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits) ARM: alpine: add support for generic pci ARM: Exynos: migrate DCSCB to the new MCPM backend abstraction ARM: vexpress: migrate DCSCB to the new MCPM backend abstraction ARM: vexpress: DCSCB: tighten CPU validity assertion ARM: vexpress: migrate TC2 to the new MCPM backend abstraction ARM: MCPM: move the algorithmic complexity to the core code ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC ARM: EXYNOS: add AFTR mode support for Exynos3250 ARM: EXYNOS: add code for setting/clearing boot flag ARM: EXYNOS: fix CPU1 hotplug on Exynos3250 ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore ARM: cygnus: fix const declaration bcm_cygnus_dt_compat ARM: DRA7: hwmod: Fix the hwmod class for GPTimer4 ARM: DRA7: hwmod: Add data for GPTimers 13 through 16 ARM: EXYNOS: Remove left over 'extra_save' ARM: EXYNOS: Constify exynos_pm_data array ARM: EXYNOS: use static in suspend.c ARM: EXYNOS: Use platform device name as power domain name ARM: EXYNOS: add support for async-bridge clocks for pm_domains ARM: omap-device: add missed callback for suspend-to-disk ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC cleanups from Olof Johansson: "We've got a fairly large cleanup branch this time. The bulk of this is removal of non-DT platforms of several flavors: - Atmel at91 platforms go full-DT, with removal of remaining board-file based support - OMAP removes legacy board files for three more platforms - removal of non-DT mach-msm, newer Qualcomm platforms now live in mach-qcom - Freescale i.MX25 also removes non-DT platform support" Most of the rest of the changes here are fallout from the above, i.e. for example removal of drivers that now lack platforms, etc. * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits) mmc: Remove msm_sdcc driver gpio: Remove gpio-msm-v1 driver ARM: Remove mach-msm and associated ARM architecture code ARM: shmobile: cpuidle: Remove the pointless default driver ARM: davinci: dm646x: Add interrupt resource for McASPs ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x ARM: davinci: dm646x: Clean up the McASP DMA resources ARM: davinci: devices-da8xx: Add support for McASP2 on da830 ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request ARM: OMAP2+: Remove legacy support for omap3 TouchBook ARM: OMAP3: Remove legacy support for devkit8000 ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board ARM: shmobile: Consolidate the pm code for R-Car Gen2 ARM: shmobile: r8a7791: Correct SYSCIER value ARM: shmobile: r8a7790: Correct SYSCIER value ARM: at91: remove old setup ARM: at91: sama5d4: remove useless map_io ARM: at91: sama5 use SoC detection infrastructure ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Olof Johansson: "Here's the usual "low-priority fixes that didn't make it into the last few -rcs, with a twist: We had a fixes pull request that I didn't send in time to get into 4.0, so we'll send some of them to Greg for -stable as well. Contents here is as usual not all that controversial: - a handful of randconfig fixes from Arnd, in particular for older Samsung platforms - Exynos fixes, !SMP building, DTS updates for MMC and lid switch - Kbuild fix to create output subdirectory for DTB files - misc minor fixes for OMAP" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits) ARM: at91/dt: sama5d3 xplained: add phy address for macb1 kbuild: Create directory for target DTB ARM: mvebu: Disable CPU Idle on Armada 38x ARM: DRA7: Enable Cortex A15 errata 798181 ARM: dts: am57xx-beagle-x15: Add thermal map to include fan and tmp102 ARM: dts: DRA7: Add bandgap and related thermal nodes bus: ocp2scp: SYNC2 value should be changed to 0x6 ARM: dts: am4372: Add "ti,am437x-ocp2scp" as compatible string for OCP2SCP ARM: OMAP2+: remove superfluous NULL pointer check ARM: EXYNOS: Fix build breakage cpuidle on !SMP ARM: dts: fix lid and power pin-functions for exynos5250-spring ARM: dts: fix mmc node updates for exynos5250-spring ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA_I688 MAINTAINERS: add OMAP defconfigs under OMAP SUPPORT ARM: OMAP1: PM: fix some build warnings on 1510-only Kconfigs ARM: cns3xxx: don't export static symbol ARM: S3C24XX: avoid a Kconfig warning ARM: S3C24XX: fix header file inclusions ARM: S3C24XX: fix building without PM_SLEEP ARM: S3C24XX: use SAMSUNG_WAKEMASK for s3c2416 ...
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Ilya Dryomov authored
After the switch to blk-mq rbd_wq processes requests, not devices. Signed-off-by:
Ilya Dryomov <idryomov@gmail.com>
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Ilya Dryomov authored
Sync up feature bits and enable CEPH_FEATURE_CRUSH_V4. Signed-off-by:
Ilya Dryomov <idryomov@gmail.com>
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