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4460 Commits
Author | SHA1 | Message | Date | |
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Christoph Hellwig
|
e1c7e32453 |
dma-mapping: always provide the dma_map_ops based implementation
Move the generic implementation to <linux/dma-mapping.h> now that all architectures support it and remove the HAVE_DMA_ATTR Kconfig symbol now that everyone supports them. [valentinrothberg@gmail.com: remove leftovers in Kconfig] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Helge Deller <deller@gmx.de> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Steven Miao <realmz6@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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a200dcb346 |
virtio: barrier rework+fixes
This adds a new kind of barrier, and reworks virtio and xen to use it. Plus some fixes here and there. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJWlU2kAAoJECgfDbjSjVRpZ6IH/Ra19ecG8sCQo9zskr4zo22Z DZXC3u0sJDBYjjBAiw3IY1FKh7wx2Fr1RhUOj1bteBgcFCMCV1zInP5ITiCyzd1H YYh1w9C2tZaj2T4t9L4hIrAdtIF8fGS+oI2IojXPjOuDLEt6pfFBEjHp/sfl3UJq ZmZvw4OXviSNej7jBw8Xni3Uv18yfmLGXvMdkvMSPC1/XL29voGDqTVwhqJwxLVz k/ZLcKFOzIs9N7Nja0Jl1EiZtC2Y9cpItqweicNAzszlpkSL44vQxmCSefB+WyQ4 gt0O3+AxYkLfrxzCBhUA4IpRex3/XPW1b+1e/V1XjfR2n/FlyLe+AIa8uPJElFc= =ukaV -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull virtio barrier rework+fixes from Michael Tsirkin: "This adds a new kind of barrier, and reworks virtio and xen to use it. Plus some fixes here and there" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (44 commits) checkpatch: add virt barriers checkpatch: check for __smp outside barrier.h checkpatch.pl: add missing memory barriers virtio: make find_vqs() checkpatch.pl-friendly virtio_balloon: fix race between migration and ballooning virtio_balloon: fix race by fill and leak s390: more efficient smp barriers s390: use generic memory barriers xen/events: use virt_xxx barriers xen/io: use virt_xxx barriers xenbus: use virt_xxx barriers virtio_ring: use virt_store_mb sh: move xchg_cmpxchg to a header by itself sh: support 1 and 2 byte xchg virtio_ring: update weak barriers to use virt_xxx Revert "virtio_ring: Update weak barriers to use dma_wmb/rmb" asm-generic: implement virt_xxx memory barriers x86: define __smp_xxx xtensa: define __smp_xxx tile: define __smp_xxx ... |
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Will Deacon
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da48d094ce |
Kconfig: remove HAVE_LATENCYTOP_SUPPORT
As illustrated by commit |
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Kirill A. Shutemov
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e1534ae950 |
mm: differentiate page_mapped() from page_mapcount() for compound pages
Let's define page_mapped() to be true for compound pages if any sub-pages of the compound page is mapped (with PMD or PTE). On other hand page_mapcount() return mapcount for this particular small page. This will make cases like page_get_anon_vma() behave correctly once we allow huge pages to be mapped with PTE. Most users outside core-mm should use page_mapcount() instead of page_mapped(). Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Tested-by: Sasha Levin <sasha.levin@oracle.com> Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Jerome Marchand <jmarchan@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Steve Capper <steve.capper@linaro.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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ac53b2e053 |
MTD updates for v4.5:
Generic MTD * populate the MTD device 'of_node' field (and get a proper 'of_node' symlink in sysfs) - This yielded some new helper functions, and changes across a variety of drivers * partitioning cleanups, to prepare for better device-tree based partitioning in the future - Eliminate a lot of boilerplate for drivers that want to use OF-based partition parsing - The DT bindings for this didn't settle yet, so most non-cleanup portions are deferred for a future release NAND * embed a struct mtd_info inside struct nand_chip - This is really long overdue; too many drivers have to do the same silly boilerplate to allocate and link up two "independent" structs, when in fact, everyone is assuming there is an exact 1:1 relationship between a NAND chips struct and its underlying MTD. This aids improved helpers and should make certain abstractions easier in the future. - Also causes a lot of churn, helped along by some automated code transformations * add more core support for detecting (and "correcting") bitflips in erased pages; requires opt-in by drivers, but at least we kill a few bad implementations and hopefully stave off future ones * pxa3xx_nand: cleanups, a few fixes, and PM improvements * new JZ4780 NAND driver SPI NOR * provide default erase function, for controllers that just want to send the SECTOR_ERASE command directly * fix some module auto-loading issues with device tree ("jedec,spi-nor") * error handling fixes * new Mediatek QSPI flash driver Other * cfi: force valid geometry Kconfig (finally!) - this one used to trip up randconfigs occasionally, since bots aren't deterred by big scary "advanced configuration" menus More? Probably. See the commit logs. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJWlZSyAAoJEFySrpd9RFgtVkEP/096SsFs+71jPgc6ARHIKt6j b8vnGeMpjYErIjRZXjeLJvD4whYcooM1IDXiy7HPFEF/DrmN+dBjF6gYNHhC9n+X bpIVS+TJknBKqcAClPVArZI77Fugzn1jBuo8t8rH5bpHNvTfucOt0VmQAu/NRxXe qUHNXDdQ+nb7qUy47Us66ygDiUh6tXYD2gp3duE8W49FnoSxcXNTq467RGyVBREl U+5mxsD4y49mktG3xatYdwmvz9UTWOYa+u4NTG282kP6GrqTPTw0ESaxfViP9nyd WSexhylV/PFJjxyMRazy1EZJ3kiQCQvza/VMmZ6fDSzwZ4JephuCDGLd3MhE3/E7 C275DNHC6U0s79gSlihrYHKEkMN8uNUDwNfeZhY05jXL56kFxUlUvvq14bt4gDDK xrPLNKLOpcoAMiRFOM5NdBeyQx9REq1G09I8MBjBN0kW254lIjGm6naCOl0L/Fu1 Y4c7hJCLFUTrki9DeNcP6dtpSCVdOap4C+920FZyrBnUzpt5G/rUGdSQu0iY5i4j BHe/Pr6ybkQ+b7XZbJlbFOy/u6TL/3T9Z4L52RK4j6F3r2EkNiH0+892L4v4qih6 Bt2wsFw8gGHC3dnnh5yfyst/QaG2Mu7V2JJjrrlERjWQJepWqYnUjlH/PgwKj7t0 /pnD40iDmUG2aYe+Jmcv =wFQI -----END PGP SIGNATURE----- Merge tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd Pull MTD updates from Brian Norris: "Generic MTD: - populate the MTD device 'of_node' field (and get a proper 'of_node' symlink in sysfs) This yielded some new helper functions, and changes across a variety of drivers - partitioning cleanups, to prepare for better device-tree based partitioning in the future Eliminate a lot of boilerplate for drivers that want to use OF-based partition parsing The DT bindings for this didn't settle yet, so most non-cleanup portions are deferred for a future release NAND: - embed a struct mtd_info inside struct nand_chip This is really long overdue; too many drivers have to do the same silly boilerplate to allocate and link up two "independent" structs, when in fact, everyone is assuming there is an exact 1:1 relationship between a NAND chips struct and its underlying MTD. This aids improved helpers and should make certain abstractions easier in the future. Also causes a lot of churn, helped along by some automated code transformations - add more core support for detecting (and "correcting") bitflips in erased pages; requires opt-in by drivers, but at least we kill a few bad implementations and hopefully stave off future ones - pxa3xx_nand: cleanups, a few fixes, and PM improvements - new JZ4780 NAND driver SPI NOR: - provide default erase function, for controllers that just want to send the SECTOR_ERASE command directly - fix some module auto-loading issues with device tree ("jedec,spi-nor") - error handling fixes - new Mediatek QSPI flash driver Other: - cfi: force valid geometry Kconfig (finally!) This one used to trip up randconfigs occasionally, since bots aren't deterred by big scary "advanced configuration" menus More? Probably. See the commit logs" * tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd: (168 commits) mtd: jz4780_nand: replace if/else blocks with switch/case mtd: nand: jz4780: Update ecc correction error codes mtd: nandsim: use nand_get_controller_data() mtd: jz4780_nand: remove useless mtd->priv = chip assignment staging: mt29f_spinand: make use of nand_set/get_controller_data() helpers mtd: nand: make use of nand_set/get_controller_data() helpers ARM: make use of nand_set/get_controller_data() helpers mtd: nand: add helpers to access ->priv mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs mtd: nand: jz4740: remove custom 'erased check' implementation mtd: nand: diskonchip: remove custom 'erased check' implementation mtd: nand: davinci: remove custom 'erased check' implementation mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions mtd: nand: return consistent error codes in ecc.correct() implementations doc: dt: mtd: new binding for jz4780-{nand,bch} mtd: cfi_cmdset_0001: fixing memory leak and handling failed kmalloc mtd: spi-nor: wait until lock/unlock operations are ready mtd: tests: consolidate kmalloc/memset 0 call to kzalloc jffs2: use to_delayed_work mtd: nand: assign reasonable default name for NAND drivers ... |
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Linus Torvalds
|
67ad058d97 |
TTY/Serial patches for 4.5-rc1
Here is the big serial/tty driver updates for 4.5-rc1. Lots of driver updates and some tty core changes. All of these have been in linux-next and the details are in the shortlog. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlaV0iQACgkQMUfUDdst+ynukgCeNdulE6XMg5Xp3Wn3hs0ZW6fo YmUAoMRrtjFCixhiGHoNKTm35V4gC2sy =D64i -----END PGP SIGNATURE----- Merge tag 'tty-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial updates from Greg KH: "Here is the big serial/tty driver update for 4.5-rc1. Lots of driver updates and some tty core changes. All of these have been in linux-next and the details are in the shortlog" * tag 'tty-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (127 commits) drivers/tty/serial: delete unused MODULE_DEVICE_TABLE from atmel_serial.c serial: sh-sci: Remove cpufreq notifier to fix crash/deadlock serial: 8250: of: Fix the driver and actually compile the 8250_of tty: amba-pl011: use iotype instead of access_32b to track 32-bit I/O tty: amba-pl011: fix earlycon register offsets serial: sh-sci: Drop the sci_fck clock fallback sh: sh7734: Correct SCIF type for BRG sh: Remove sci_ick clock alias sh: Rename sci_ick and sci_fck clock to fck serial: sh-sci: Add support for optional BRG on (H)SCIF serial: sh-sci: Add support for optional external (H)SCK input serial: sh-sci: Prepare for multiple sampling clock sources serial: sh-sci: Correct SCIF type on R-Car for BRG serial: sh-sci: Correct SCIF type on RZ/A1H serial: sh-sci: Replace struct sci_port_info by type/regtype encoding serial: sh-sci: Add BRG register definitions serial: sh-sci: Take into account sampling rate for max baud rate serial: sh-sci: Merge sci_scbrr_calc() and sci_baud_calc_hscif() serial: sh-sci: Avoid calculating the receive margin for HSCIF serial: sh-sci: Improve bit rate error calculation for HSCIF ... |
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Linus Torvalds
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c17488d066 |
Not much new with tracing for this release. Mostly just clean ups and
minor fixes. Here's what else is new: o A new TRACE_EVENT_FN_COND macro, combining both _FN and _COND for those that want both. o New selftest to test the instance create and delete o Better debug output when ftrace fails -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJWlU8tAAoJEKKk/i67LK/8JckH/2XIhjwMunm35uCg1308sDqy d44G3+p0pm8ztjBf8iD8wH2nP3m7z+nC8JBmSPIUgAHsKOYHWsBy2A/36OVWv5lK 1hVXvBwOuZXnyWXr7bC2RO9S9f9acSFaabZXWDi1BCJRJSgEcknz32V7ZAL4jOCO SfBWBNrWJfUsURbfbElfVxPLArvyUg9Bb5dW5B+QFf6PuoJaORYzNLYXHlbsq++T WlrlnD+mFZ/DKFZ/gl3FMSGMPaGimw09/3eqMzv/tLQobp6PbCWlJTwjUoxJ/9dO XOY4sWUrUUZilU8qCk0i0ZSEumWmE+SWS3eq+Ef18B/5haIj/LkoM4UQD3h2Rc4= =FDR+ -----END PGP SIGNATURE----- Merge tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "Not much new with tracing for this release. Mostly just clean ups and minor fixes. Here's what else is new: - A new TRACE_EVENT_FN_COND macro, combining both _FN and _COND for those that want both. - New selftest to test the instance create and delete - Better debug output when ftrace fails" * tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits) ftrace: Fix the race between ftrace and insmod ftrace: Add infrastructure for delayed enabling of module functions x86: ftrace: Fix the comments for ftrace_modify_code_direct() tracing: Fix comment to use tracing_on over tracing_enable metag: ftrace: Fix the comments for ftrace_modify_code sh: ftrace: Fix the comments for ftrace_modify_code() ia64: ftrace: Fix the comments for ftrace_modify_code() ftrace: Clean up ftrace_module_init() code ftrace: Join functions ftrace_module_init() and ftrace_init_module() tracing: Introduce TRACE_EVENT_FN_COND macro tracing: Use seq_buf_used() in seq_buf_to_user() instead of len bpf: Constify bpf_verifier_ops structure ftrace: Have ftrace_ops_get_func() handle RCU and PER_CPU flags too ftrace: Remove use of control list and ops ftrace: Fix output of enabled_functions for showing tramp ftrace: Fix a typo in comment ftrace: Show all tramps registered to a record on ftrace_bug() ftrace: Add variable ftrace_expected for archs to show expected code ftrace: Add new type to distinguish what kind of ftrace_bug() tracing: Update cond flag when enabling or disabling a trigger ... |
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Michael S. Tsirkin
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9e3f84ce41 |
sh: move xchg_cmpxchg to a header by itself
Looks like future sh variants will support a 4-byte cas which will be used to implement 1 and 2 byte xchg. This is exactly what we do for llsc now, move the portable part of the code into a separate header so it's easy to reuse. Suggested-by: Rich Felker <dalias@libc.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> |
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Michael S. Tsirkin
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3226aad81a |
sh: support 1 and 2 byte xchg
This completes the xchg implementation for sh architecture. Note: The llsc variant is tricky since this only supports 4 byte atomics, the existing implementation of 1 byte xchg is wrong: we need to do a 4 byte cmpxchg and retry if any bytes changed meanwhile. Write this in C for clarity. Suggested-by: Rich Felker <dalias@libc.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> |
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Michael S. Tsirkin
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90a3ccb0be |
sh: define __smp_xxx, fix smp_store_mb for !SMP
sh variant of smp_store_mb() calls xchg() on !SMP which is stronger than implied by both the name and the documentation. define __smp_store_mb instead: code in asm-generic/barrier.h will then define smp_store_mb correctly depending on CONFIG_SMP. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> |
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Mauro Carvalho Chehab
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c3152592e7 |
Merge branch 'patchwork' into v4l_for_linus
* patchwork: (204 commits) [media] rc: sunxi-cir: Initialize the spinlock properly [media] rtl2832: do not filter out slave TS null packets [media] rtl2832: print reg number on error case [media] rtl28xxu: return demod reg page from driver cache [media] coda: enable MPEG-2 ES decoding [media] coda: don't start streaming without queued buffers [media] coda: hook up vidioc_prepare_buf [media] coda: relax coda_jpeg_check_buffer for trailing bytes [media] coda: make to_coda_video_device static [media] s5p-mfc: remove volatile attribute from MFC register addresses [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void [media] s5p-mfc: use spinlock to protect MFC context [media] s5p-mfc: remove unnecessary callbacks [media] s5p-mfc: make queue cleanup code common [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx [media] s5p-mfc: constify s5p_mfc_codec_ops structures [media] au8522: Avoid memory leak for device config data [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf [media] uvcvideo: small cleanup in uvc_video_clock_update() [media] uvcvideo: Fix reading the current exposure value of UVC ... |
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Greg Kroah-Hartman
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f658f21c65 |
Merge branch 'scif-clk-sck-brg-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into tty-next
Geert writes: Summary: - Clean up the naming of clocks in the sh-sci driver and its DT bindings, - Add support for the optional external clock on (H)SCI(F), where this pin can serve as a clock input, - Add support for the optional clock sources for the Baud Rate Generator for External Clock (BRG), as found on some SCIF variants and on HSCIF. |
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Li Bin
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5243238ad5 |
sh: ftrace: Fix the comments for ftrace_modify_code()
There is no need to worry about module and __init text disappearing case, because that ftrace has a module notifier that is called when a module is being unloaded and before the text goes away and this code grabs the ftrace_lock mutex and removes the module functions from the ftrace list, such that it will no longer do any modifications to that module's text, the update to make functions be traced or not is done under the ftrace_lock mutex as well. And by now, __init section codes should not been modified by ftrace, because it is black listed in recordmcount.c and ignored by ftrace. Link: http://lkml.kernel.org/r/1449367378-29430-5-git-send-email-huawei.libin@huawei.com Cc: linux-sh@vger.kernel.org Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Li Bin <huawei.libin@huawei.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> |
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Geert Uytterhoeven
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0a03668188 |
sh: sh7734: Correct SCIF type for BRG
The SCIF variant in the sh7734 SoC is not the common "SH-4(A)" variant, but a derivative with added "Baud Rate Generator for External Clock" (BRG). Correct the regtype value in platform data to fix this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
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Laurent Pinchart
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6441d314b4 |
sh: Remove sci_ick clock alias
The sh-sci driver falls back to the peripheral clock if the sci_ick clock doesn't exist. There's thus no need to create an alias for the peripheral clock named sci_ick. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
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Laurent Pinchart
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fa3d39bf25 |
sh: Rename sci_ick and sci_fck clock to fck
The SCI driver requires a functional clock named "fck" and falls back to "sci_ick" or "sci_fck" when the "fck" clock doesn't exist. To allow removal of the fallback code rename the sci_ick and sci_fck clocks to fck for all SH platforms. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
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Dmitry V. Levin
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2d33fa1059 |
sh64: fix __NR_fgetxattr
According to arch/sh/kernel/syscalls_64.S and common sense, __NR_fgetxattr has to be defined to 259, but it doesn't. Instead, it's defined to 269, which is of course used by another syscall, __NR_sched_setaffinity in this case. This bug was found by strace test suite. Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Boris BREZILLON
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7326ffef78 |
sh: nand: make use of mtd_to_nand() where appropriate
mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all SH specific implementations to use this helper. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> |
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Peter Zijlstra
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90eec103b9 |
treewide: Remove old email address
There were still a number of references to my old Red Hat email address in the kernel source. Remove these while keeping the Red Hat copyright notices intact. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Mauro Carvalho Chehab
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eb4b0ec75e |
[media] include/media: move platform_data to linux/platform_data/media
Let's not mix platform_data headers with the core headers. Instead, let's create a subdir at linux/platform_data and move the headers to that common place, adding it to MAINTAINERS. The headers were moved with: mkdir include/linux/platform_data/media/; git mv include/media/gpio-ir-recv.h include/media/ir-rx51.h include/media/mmp-camera.h include/media/omap1_camera.h include/media/omap4iss.h include/media/s5p_hdmi.h include/media/si4713.h include/media/sii9234.h include/media/smiapp.h include/media/soc_camera.h include/media/soc_camera_platform.h include/media/timb_radio.h include/media/timb_video.h include/linux/platform_data/media/ And the references fixed with this script: MAIN_DIR="linux/platform_data/" PREV_DIR="media/" DIRS="media/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> |
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Mauro Carvalho Chehab
|
d647f0b70c |
[media] include/media: move driver interface headers to a separate dir
Let's not mix headers used by the core with those headers that are needed by some driver-specific interface header. The headers used on drivers were manually moved using: mkdir include/media/drv-intf/ git mv include/media/cx2341x.h include/media/cx25840.h \ include/media/exynos-fimc.h include/media/msp3400.h \ include/media/s3c_camif.h include/media/saa7146.h \ include/media/saa7146_vv.h include/media/sh_mobile_ceu.h \ include/media/sh_mobile_csi2.h include/media/sh_vou.h \ include/media/si476x.h include/media/soc_mediabus.h \ include/media/tea575x.h include/media/drv-intf/ And the references for those headers were corrected using: MAIN_DIR="media/" PREV_DIR="media/" DIRS="drv-intf/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> |
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Mauro Carvalho Chehab
|
b5dcee225c |
[media] include/media: split I2C headers from V4L2 core
Currently, include/media is messy, as it contains both the V4L2 core headers and some driver-specific headers on the same place. That makes harder to identify what core headers should be documented and what headers belong to I2C drivers that are included only by bridge/main drivers that would require the functions provided by them. Let's move those i2c specific files to its own subdirectory. The files to move were produced via the following script: mkdir include/media/i2c (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/*/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) for i in include/media/*.h; do n=`basename $i`; (for j in $(git grep -l $n); do dirname $j; done)|sort|uniq|grep -ve '^.$' > list; num=$(wc -l list|cut -d' ' -f1); if [ $num == 1 ]; then if [ "`grep i2c list`" != "" ]; then git mv $i include/media/i2c; fi; fi; done And the references corrected via this script: MAIN_DIR="media/" PREV_DIR="media/" DIRS="i2c/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Merged Sakari Ailus patch that moves smiapp.h to include/media/i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> |
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Linus Torvalds
|
ad804a0b2a |
Merge branch 'akpm' (patches from Andrew)
Merge second patch-bomb from Andrew Morton: - most of the rest of MM - procfs - lib/ updates - printk updates - bitops infrastructure tweaks - checkpatch updates - nilfs2 update - signals - various other misc bits: coredump, seqfile, kexec, pidns, zlib, ipc, dma-debug, dma-mapping, ... * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (102 commits) ipc,msg: drop dst nil validation in copy_msg include/linux/zutil.h: fix usage example of zlib_adler32() panic: release stale console lock to always get the logbuf printed out dma-debug: check nents in dma_sync_sg* dma-mapping: tidy up dma_parms default handling pidns: fix set/getpriority and ioprio_set/get in PRIO_USER mode kexec: use file name as the output message prefix fs, seqfile: always allow oom killer seq_file: reuse string_escape_str() fs/seq_file: use seq_* helpers in seq_hex_dump() coredump: change zap_threads() and zap_process() to use for_each_thread() coredump: ensure all coredumping tasks have SIGNAL_GROUP_COREDUMP signal: remove jffs2_garbage_collect_thread()->allow_signal(SIGCONT) signal: introduce kernel_signal_stop() to fix jffs2_garbage_collect_thread() signal: turn dequeue_signal_lock() into kernel_dequeue_signal() signals: kill block_all_signals() and unblock_all_signals() nilfs2: fix gcc uninitialized-variable warnings in powerpc build nilfs2: fix gcc unused-but-set-variable warnings MAINTAINERS: nilfs2: add header file for tracing nilfs2: add tracepoints for analyzing reading and writing metadata files ... |
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Martin Kepplinger
|
06d8f8178c |
arch/sh/kernel/traps_64.c: use sign_extend64() for sign extension
Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: George Spelvin <linux@horizon.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Maxime Coquelin <maxime.coquelin@st.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Yury Norov <yury.norov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
02f0d3f758 |
MTD updates for 4.4-rc1:
Core * WARN (in some cases) when a struct mtd_info is registered multiple times; in the past this was "supported", but it's still error prone for future development. There's only one ugly case of this left in the tree (that we're aware of) and the owners are aware of the problems there. * fix potential deadlock in the blkdev removal path NOTE: the (potential) deadlock was introduced in a for-stable patch. This one is also marked for -stable. * ioctl(BLKPG) compat_ioctl support; resolves issues with 32-bit user space vs. 64-bit kernel space * Set MTD parent device correctly throughout the tree, so the tree structure appears correctly in sysfs; many drivers were missing this (soft) requirement * Move device tree partitions (ofpart) into a dedicated 'partitions' subnode; this helps to disambiguate whether a node is a partition or some other auxiliary data * Improve error handling for partitioning failures NAND * General: Increase timeout period, for corner-case systems with less-than-accurate jiffies * Fix OF-based autoloading of several NAND drivers when built as modules * pxa3xx_nand: - Rework timing configuration to be more dynamic - Refactor PM support * brcmnand: prepare for NorthStar 2 support (ARM64, 16-bit NAND chips) * sunxi_nand: refactoring and a few bug fixes * vf610: new NAND driver * FSMC: add SW BCH support; support common NAND DT bindings * lpc32xx_slc: refactor and improve timing calculations logic * denali: support for rev 5.1 SPI NOR * Layering improvements * Added Winbond lock/unlock support * Added mtd_is_locked() (i.e., ioctl(MEMISLOCKED)) support * Increase full-chip-erase timeout linearly with flash size * fsl-quadspi: fix compile for non-ARM architectures * New flash support -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJWPPj0AAoJEFySrpd9RFgtJEgP/RnfXRHBX51cUl4r8XrxiGtz zlH5zFOCYWEOtlGjoD25wp+A5RRjWi62At6KmLJZncf0clJ65fyKHjt/JEg6YuI6 DUTMepTwyC2Wh7Ux1ZEH3KOnl64xh5p+Wf7Tl4yUr0DCd26VEwE9o7tPRlahv9nx OhGCWS+uSsxW0Q2wDLCypFzXsnDBeoGxDO7VCIzle4d3aJ4PCcQIXINlr6ZYpocT VTTadPCMsmYq6AgV5W3KYGYLj62ITiN2YxdJRacg+QkKLfl21u2wVy9Ahk/oj5TG bV0DHiz6ky1F2K/bvJibcRFABiYup9UXIo1IzwLloSxEJ/GfennMC29xn9K/0gid e2kO/Ajh/bihgJXzoAoZD/40YJK40X5VW9rQZgo482sMBGLmJOzZiOHOIEXaVohs djQ7sbCwPmLwqp7C+6WTn8frp6ntIe9iXdmjDuR/WlPP0Sh5rI3cUeBQrJXEYxwc aYt1Zxkst6gEMPQJ/S2TiKwWm0BxVWEUEjKmt9FPWOaQnwmoeju0Y/6jIvs1TQKM vO8cmS17QyPUWT2kGIDmZ51KayY26uDC8/NA2t1HDYCiFbpDp61kgu2wyoBUTg7q YIAvjtnwOaG9qk0SLfZu4FEgNi4a/bC1bxGxChsi+S2krpNQAeMlPY394cf6OdsE j+CV/Ko0DguO26bO0MWr =UzSW -----END PGP SIGNATURE----- Merge tag 'for-linus-20151106' of git://git.infradead.org/linux-mtd Pull MTD updates from Brian Norris: "Core: - WARN (in some cases) when a struct mtd_info is registered multiple times; in the past this was "supported", but it's still error prone for future development. There's only one ugly case of this left in the tree (that we're aware of) and the owners are aware of the problems there. - fix potential deadlock in the blkdev removal path NOTE: the (potential) deadlock was introduced in a for-stable patch. This one is also marked for -stable. - ioctl(BLKPG) compat_ioctl support; resolves issues with 32-bit user space vs 64-bit kernel space - Set MTD parent device correctly throughout the tree, so the tree structure appears correctly in sysfs; many drivers were missing this (soft) requirement - Move device tree partitions (ofpart) into a dedicated 'partitions' subnode; this helps to disambiguate whether a node is a partition or some other auxiliary data - Improve error handling for partitioning failures NAND: - General: Increase timeout period, for corner-case systems with less-than-accurate jiffies - Fix OF-based autoloading of several NAND drivers when built as modules - pxa3xx_nand: - Rework timing configuration to be more dynamic - Refactor PM support - brcmnand: prepare for NorthStar 2 support (ARM64, 16-bit NAND chips) - sunxi_nand: refactoring and a few bug fixes - vf610: new NAND driver - FSMC: add SW BCH support; support common NAND DT bindings - lpc32xx_slc: refactor and improve timing calculations logic - denali: support for rev 5.1 SPI NOR: - Layering improvements - Added Winbond lock/unlock support - Added mtd_is_locked() (i.e., ioctl(MEMISLOCKED)) support - Increase full-chip-erase timeout linearly with flash size - fsl-quadspi: fix compile for non-ARM architectures - New flash support" * tag 'for-linus-20151106' of git://git.infradead.org/linux-mtd: (169 commits) mtd: don't WARN about overloaded users of mtd->reboot_notifier.notifier_call mtd: nand: sunxi: avoid retrieving data before ECC pass mtd: nand: sunxi: fix sunxi_nfc_hw_ecc_read/write_chunk() mtd: blkdevs: fix potential deadlock + lockdep warnings mtd: ofpart: move ofpart partitions to a dedicated dt node doc: dt: mtd: support partitions in a special 'partitions' subnode mtd: brcmnand: Force 8bit mode before doing nand_scan_ident() mtd: brcmnand: factor out CFG and CFG_EXT bitfields mtd: mtdpart: Do not fail mtd probe when parsing partitions fails mtd: fsl-quadspi: fix macro collision problems with READ/WRITE mtd: warn when registering the same master many times mtd: fixup corner case error handling in mtd_device_parse_register() mtd: tests: Replace timeval with ktime_t mtd: fsmc_nand: Add BCH4 SW ECC support for SPEAr600 mtd: nand: vf610_nfc: use nand_check_erased_ecc_chunk() helper mtd: nand: increase ready wait timeout and report timeouts mtd: docg3: off by one in doc_register_sysfs() mtd: pxa3xx_nand: clean up the pxa3xx timings mtd: pxa3xx_nand: rework flash detection and timing setup mtd: pxa3xx_nand: add helpers to setup the timings ... |
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Ingo Molnar
|
a1a2ab2ff7 |
Linux 4.3-rc6
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJWJCaDAAoJEHm+PkMAQRiGvJQH/jGlxawu+mnNFjIRXmk8Zucq cxDVTPnQ4S1DJMyRSQTqe6ccDgDM/TEISJPZ0Gwc2SQLda27zdQiz05upbqHSPSH /FUHMKiMRhhIBOzdfEGR4Ry2YZID+DlG5EWCgRKf/GlgY3STZSpjIBPYd3Rl3zsU qragNjtbCE6eUpnLwkv40Q2mzzR3/fZxJ0drgE/QiSF8P0VmvVbrcQMF58vnUQgy 9URp48mLhmKj+IrElSnvXMG0XLrKn1tRYXGXd3w+x1Nlr//SHYsIuQHUcp6SAVQh p2HXLL7eoy8rs45MCiOfXG7VgNWF6HFjVMtrNUcNfgBsLCx0qFMVrKIILrGtKh0= =ETze -----END PGP SIGNATURE----- Merge tag 'v4.3-rc6' into locking/core, to pick up fixes before applying new changes Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Ross Zwisler
|
934ed25ea5 |
sh: add copy_user_page() alias for __copy_user()
copy_user_page() is needed by DAX. Without this we get a compile error for DAX on SH: fs/dax.c:280:2: error: implicit declaration of function `copy_user_page' [-Werror=implicit-function-declaration] copy_user_page(vto, (void __force *)vfrom, vaddr, to); ^ This was done with a random config that happened to include DAX support. This patch has only been compile tested. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Brian Norris
|
99a3b15572 |
sh: mach-rsk: remove unnecessary MTD partition probe specification
The cmdlinepart parser is already supported in the default probe. Signed-off-by: Brian Norris <computersforpeace@gmail.com> |
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Peter Zijlstra
|
62e8a3258b |
atomic, arch: Audit atomic_{read,set}()
This patch makes sure that atomic_{read,set}() are at least {READ,WRITE}_ONCE(). We already had the 'requirement' that atomic_read() should use ACCESS_ONCE(), and most archs had this, but a few were lacking. All are now converted to use READ_ONCE(). And, by a symmetry and general paranoia argument, upgrade atomic_set() to use WRITE_ONCE(). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: james.hogan@imgtec.com Cc: linux-kernel@vger.kernel.org Cc: oleg@redhat.com Cc: will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Thomas Gleixner
|
bd0b9ac405 |
genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> |
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Christoph Hellwig
|
452e06af1f |
dma-mapping: consolidate dma_set_mask
Almost everyone implements dma_set_mask the same way, although some time that's hidden in ->set_dma_mask methods. This patch consolidates those into a common implementation that either calls ->set_dma_mask if present or otherwise uses the default implementation. Some architectures used to only call ->set_dma_mask after the initial checks, and those instance have been fixed to do the full work. h8300 implemented dma_set_mask bogusly as a no-ops and has been fixed. Unfortunately some architectures overload unrelated semantics like changing the dma_ops into it so we still need to allow for an architecture override for now. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
|
ee196371d5 |
dma-mapping: consolidate dma_supported
Most architectures just call into ->dma_supported, but some also return 1 if the method is not present, or 0 if no dma ops are present (although that should never happeb). Consolidate this more broad version into common code. Also fix h8300 which inorrectly always returned 0, which would have been a problem if it's dma_set_mask implementation wasn't a similarly buggy noop. As a few architectures have much more elaborate implementations, we still allow for arch overrides. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
|
efa21e432c |
dma-mapping: cosolidate dma_mapping_error
Currently there are three valid implementations of dma_mapping_error: (1) call ->mapping_error (2) check for a hardcoded error code (3) always return 0 This patch provides a common implementation that calls ->mapping_error if present, then checks for DMA_ERROR_CODE if defined or otherwise returns 0. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
|
1e8937526e |
dma-mapping: consolidate dma_{alloc,free}_noncoherent
Most architectures do not support non-coherent allocations and either define dma_{alloc,free}_noncoherent to their coherent versions or stub them out. Openrisc uses dma_{alloc,free}_attrs to implement them, and only Mips implements them directly. This patch moves the Openrisc version to common code, and handles the DMA_ATTR_NON_CONSISTENT case in the mips dma_map_ops instance. Note that actual non-coherent allocations require a dma_cache_sync implementation, so if non-coherent allocations didn't work on an architecture before this patch they still won't work after it. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
|
6894258eda |
dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent}
Since 2009 we have a nice asm-generic header implementing lots of DMA API functions for architectures using struct dma_map_ops, but unfortunately it's still missing a lot of APIs that all architectures still have to duplicate. This series consolidates the remaining functions, although we still need arch opt outs for two of them as a few architectures have very non-standard implementations. This patch (of 5): The coherent DMA allocator works the same over all architectures supporting dma_map operations. This patch consolidates them and converges the minor differences: - the debug_dma helpers are now called from all architectures, including those that were previously missing them - dma_alloc_from_coherent and dma_release_from_coherent are now always called from the generic alloc/free routines instead of the ops dma-mapping-common.h always includes dma-coherent.h to get the defintions for them, or the stubs if the architecture doesn't support this feature - checks for ->alloc / ->free presence are removed. There is only one magic instead of dma_map_ops without them (mic_dma_ops) and that one is x86 only anyway. Besides that only x86 needs special treatment to replace a default devices if none is passed and tweak the gfp_flags. An optional arch hook is provided for that. [linux@roeck-us.net: fix build] [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Yinghai Lu
|
2d3862d26e |
lib/decompressors: use real out buf size for gunzip with kernel
When loading x86 64bit kernel above 4GiB with patched grub2, got kernel
gunzip error.
| early console in decompress_kernel
| decompress_kernel:
| input: [0x807f2143b4-0x807ff61aee]
| output: [0x807cc00000-0x807f3ea29b] 0x027ea29c: output_len
| boot via startup_64
| KASLR using RDTSC...
| new output: [0x46fe000000-0x470138cfff] 0x0338d000: output_run_size
| decompress: [0x46fe000000-0x47007ea29b] <=== [0x807f2143b4-0x807ff61aee]
|
| Decompressing Linux... gz...
|
| uncompression error
|
| -- System halted
the new buffer is at 0x46fe000000ULL, decompressor_gzip is using
0xffffffb901ffffff as out_len. gunzip in lib/zlib_inflate/inflate.c cap
that len to 0x01ffffff and decompress fails later.
We could hit this problem with crashkernel booting that uses kexec loading
kernel above 4GiB.
We have decompress_* support:
1. inbuf[]/outbuf[] for kernel preboot.
2. inbuf[]/flush() for initramfs
3. fill()/flush() for initrd.
This bug only affect kernel preboot path that use outbuf[].
Add __decompress and take real out_buf_len for gunzip instead of guessing
wrong buf size.
Fixes:
|
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Dave Young
|
2965faa5e0 |
kexec: split kexec_load syscall from kexec core code
There are two kexec load syscalls, kexec_load another and kexec_file_load. kexec_file_load has been splited as kernel/kexec_file.c. In this patch I split kexec_load syscall code to kernel/kexec.c. And add a new kconfig option KEXEC_CORE, so we can disable kexec_load and use kexec_file_load only, or vice verse. The original requirement is from Ted Ts'o, he want kexec kernel signature being checked with CONFIG_KEXEC_VERIFY_SIG enabled. But kexec-tools use kexec_load syscall can bypass the checking. Vivek Goyal proposed to create a common kconfig option so user can compile in only one syscall for loading kexec kernel. KEXEC/KEXEC_FILE selects KEXEC_CORE so that old config files still work. Because there's general code need CONFIG_KEXEC_CORE, so I updated all the architecture Kconfig with a new option KEXEC_CORE, and let KEXEC selects KEXEC_CORE in arch Kconfig. Also updated general kernel code with to kexec_load syscall. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Dave Young <dyoung@redhat.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Petr Tesarik <ptesarik@suse.cz> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Josh Boyer <jwboyer@fedoraproject.org> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
12f03ee606 |
libnvdimm for 4.3:
1/ Introduce ZONE_DEVICE and devm_memremap_pages() as a generic mechanism for adding device-driver-discovered memory regions to the kernel's direct map. This facility is used by the pmem driver to enable pfn_to_page() operations on the page frames returned by DAX ('direct_access' in 'struct block_device_operations'). For now, the 'memmap' allocation for these "device" pages comes from "System RAM". Support for allocating the memmap from device memory will arrive in a later kernel. 2/ Introduce memremap() to replace usages of ioremap_cache() and ioremap_wt(). memremap() drops the __iomem annotation for these mappings to memory that do not have i/o side effects. The replacement of ioremap_cache() with memremap() is limited to the pmem driver to ease merging the api change in v4.3. Completion of the conversion is targeted for v4.4. 3/ Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem driver, update the VFS DAX implementation and PMEM api to provide persistence guarantees for kernel operations on a DAX mapping. 4/ Convert the ACPI NFIT 'BLK' driver to map the block apertures as cacheable to improve performance. 5/ Miscellaneous updates and fixes to libnvdimm including support for issuing "address range scrub" commands, clarifying the optimal 'sector size' of pmem devices, a clarification of the usage of the ACPI '_STA' (status) property for DIMM devices, and other minor fixes. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJV6Nx7AAoJEB7SkWpmfYgCWyYQAI5ju6Gvw27RNFtPovHcZUf5 JGnxXejI6/AqeTQ+IulgprxtEUCrXOHjCDA5dkjr1qvsoqK1qxug+vJHOZLgeW0R OwDtmdW4Qrgeqm+CPoxETkorJ8wDOc8mol81kTiMgeV3UqbYeeHIiTAmwe7VzZ0C nNdCRDm5g8dHCjTKcvK3rvozgyoNoWeBiHkPe76EbnxDICxCB5dak7XsVKNMIVFQ NuYlnw6IYN7+rMHgpgpRux38NtIW8VlYPWTmHExejc2mlioWMNBG/bmtwLyJ6M3e zliz4/cnonTMUaizZaVozyinTa65m7wcnpjK+vlyGV2deDZPJpDRvSOtB0lH30bR 1gy+qrKzuGKpaN6thOISxFLLjmEeYwzYd7SvC9n118r32qShz+opN9XX0WmWSFlA sajE1ehm4M7s5pkMoa/dRnAyR8RUPu4RNINdQ/Z9jFfAOx+Q26rLdQXwf9+uqbEb bIeSQwOteK5vYYCstvpAcHSMlJAglzIX5UfZBvtEIJN7rlb0VhmGWfxAnTu+ktG1 o9cqAt+J4146xHaFwj5duTsyKhWb8BL9+xqbKPNpXEp+PbLsrnE/+WkDLFD67jxz dgIoK60mGnVXp+16I2uMqYYDgAyO5zUdmM4OygOMnZNa1mxesjbDJC6Wat1Wsndn slsw6DkrWT60CRE42nbK =o57/ -----END PGP SIGNATURE----- Merge tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "This update has successfully completed a 0day-kbuild run and has appeared in a linux-next release. The changes outside of the typical drivers/nvdimm/ and drivers/acpi/nfit.[ch] paths are related to the removal of IORESOURCE_CACHEABLE, the introduction of memremap(), and the introduction of ZONE_DEVICE + devm_memremap_pages(). Summary: - Introduce ZONE_DEVICE and devm_memremap_pages() as a generic mechanism for adding device-driver-discovered memory regions to the kernel's direct map. This facility is used by the pmem driver to enable pfn_to_page() operations on the page frames returned by DAX ('direct_access' in 'struct block_device_operations'). For now, the 'memmap' allocation for these "device" pages comes from "System RAM". Support for allocating the memmap from device memory will arrive in a later kernel. - Introduce memremap() to replace usages of ioremap_cache() and ioremap_wt(). memremap() drops the __iomem annotation for these mappings to memory that do not have i/o side effects. The replacement of ioremap_cache() with memremap() is limited to the pmem driver to ease merging the api change in v4.3. Completion of the conversion is targeted for v4.4. - Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem driver, update the VFS DAX implementation and PMEM api to provide persistence guarantees for kernel operations on a DAX mapping. - Convert the ACPI NFIT 'BLK' driver to map the block apertures as cacheable to improve performance. - Miscellaneous updates and fixes to libnvdimm including support for issuing "address range scrub" commands, clarifying the optimal 'sector size' of pmem devices, a clarification of the usage of the ACPI '_STA' (status) property for DIMM devices, and other minor fixes" * tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (34 commits) libnvdimm, pmem: direct map legacy pmem by default libnvdimm, pmem: 'struct page' for pmem libnvdimm, pfn: 'struct page' provider infrastructure x86, pmem: clarify that ARCH_HAS_PMEM_API implies PMEM mapped WB add devm_memremap_pages mm: ZONE_DEVICE for "device memory" mm: move __phys_to_pfn and __pfn_to_phys to asm/generic/memory_model.h dax: drop size parameter to ->direct_access() nd_blk: change aperture mapping from WC to WB nvdimm: change to use generic kvfree() pmem, dax: have direct_access use __pmem annotation dax: update I/O path to do proper PMEM flushing pmem: add copy_from_iter_pmem() and clear_pmem() pmem, x86: clean up conditional pmem includes pmem: remove layer when calling arch_has_wmb_pmem() pmem, x86: move x86 PMEM API to new pmem.h header libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a tristate option pmem: switch to devm_ allocations devres: add devm_memremap libnvdimm, btt: write and validate parent_uuid ... |
||
Linus Torvalds
|
59a47fff02 |
Mostly this is just clean ups and micro optimizations.
The changes with more meat are: o Allowing the trace event filters to filter on CPU number and process ids o Two new markers for trace output latency were added (10 and 100 msec latencies) o Have tracing_thresh filter function profiling time I also worked on modifying the ring buffer code for some future work, and moved the adding of the timestamp around. One of my changes caused a regression, and since other changes were built on top of it and already tested, I had to operate a revert of that change. Instead of rebasing, this change set has the code that caused a regression as well as the code to revert that change without touching the other changes that were made on top of it. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJV6aZEAAoJEEjnJuOKh9ldrR4H/A1RcQf1prLLoUibPP4w3lat dmQcdpS1NY+cqyiKuKPAOkFDGQL7qWzRqZ8whcPSJIsHq57ufqNSLf+0bbQYPzg9 g3CgGL7OApmGi5ulj0sNxhadvc9TFm/SAN0nVJlNuUWdm8e1UWHLsrJZaMfopu2r RDEtkOhg619mhDL4rktNdS6rk0B92Fhu2o2PwLZPVlUl1NNEt4WJU+ejitXUVO1A Nb70/rTGGJKtyHbW+74on4LnEN5Uu0Viu6rMwGfYyIgRmC2otdBDvE4xfKMiTUKr SzBjzrhIoMIRn4Vl0vElfulkpYaw7pcC2BdpZ4d9VpIOiLSlZs0x/TgCtpFEv5M= =baZ3 -----END PGP SIGNATURE----- Merge tag 'trace-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing update from Steven Rostedt: "Mostly this is just clean ups and micro optimizations. The changes with more meat are: - Allowing the trace event filters to filter on CPU number and process ids - Two new markers for trace output latency were added (10 and 100 msec latencies) - Have tracing_thresh filter function profiling time I also worked on modifying the ring buffer code for some future work, and moved the adding of the timestamp around. One of my changes caused a regression, and since other changes were built on top of it and already tested, I had to operate a revert of that change. Instead of rebasing, this change set has the code that caused a regression as well as the code to revert that change without touching the other changes that were made on top of it" * tag 'trace-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ring-buffer: Revert "ring-buffer: Get timestamp after event is allocated" tracing: Don't make assumptions about length of string on task rename tracing: Allow triggers to filter for CPU ids and process names ftrace: Format MCOUNT_ADDR address as type unsigned long tracing: Introduce two additional marks for delay ftrace: Fix function_graph duration spacing with 7-digits ftrace: add tracing_thresh to function profile tracing: Clean up stack tracing and fix fentry updates ring-buffer: Reorganize function locations ring-buffer: Make sure event has enough room for extend and padding ring-buffer: Get timestamp after event is allocated ring-buffer: Move the adding of the extended timestamp out of line ring-buffer: Add event descriptor to simplify passing data ftrace: correct the counter increment for trace_buffer data tracing: Fix for non-continuous cpu ids tracing: Prefer kcalloc over kzalloc with multiply |
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Linus Torvalds
|
9cfcc658da |
media updates for v4.3-rc1
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJV6ifEAAoJEAhfPr2O5OEVn5kP/i2jM1tWcmV/ZEBKGAN0jpRk 5Y/Q+rnXvOpIJSQC3dEkweoBymVMclSgSB/wFSWCZtp5MaB8KrH4/2uc3UvolF91 7bqXt+fCUacMbDQyaabMCR83mz9tdOJLd5sf0ABqBgXGfwh5uXmBPaYBzmcYvKcW 4D89MFUpaFDPARTs9rdpVyr0aPRU4GcN0R3snRO9Ly+cQnyV/RxPf9NqCgnI+yPq +NvA9ScUBcBt62piSIGR4egcAR8boxYC+0r57340S21/JVMvsHQ3ok9b1aT8/rtd Yl24FkcKrRV0ShN5S1RmW5DLH/HRGabuMjkiEz9xq52FGD2sQQda0At58dWivsa4 XYdxS9UUfb9Z+qyeMdmCl1MUFRrV2G4H6VItP+GKyT3UZLEDcLl6hBg3SkyWxWB4 CSO5WuRThiIB86OVcIaREftzqDy5HdvH3ZKRD7QrW0DItGVjQwV5j6gvwqO9OEXs 99BnSohyKwUBonumE2ZtFGGhIwIomllrMSqg991bPH9+13bg/rPxUqntkPrVap/9 cV3qKO8ZFrz5UInBnR1U83l60ZK7rV4G6AVMSMKpM9XVK9TDKryAUN9Mhj5XWRH8 hbma89TQVdhdrITtt27uzj8F622cvZvxd1BqDBR8DjKVvtv/E2GPzJrAj7GHe3/o NgzP5fF6X2Si32GNb7J8 =cIed -----END PGP SIGNATURE----- Merge tag 'media/v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - new DVB frontend drivers: ascot2e, cxd2841er, horus3a, lnbh25 - new HDMI capture driver: tc358743 - new driver for NetUP DVB new boards (netup_unidvb) - IR support for DVBSky cards (smipcie-ir) - Coda driver has gain macroblock tiling support - Renesas R-Car gains JPEG codec driver - new DVB platform driver for STi boards: c8sectpfe - added documentation for the media core kABI to device-drivers DocBook - lots of driver fixups, cleanups and improvements * tag 'media/v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (297 commits) [media] c8sectpfe: Remove select on undefined LIBELF_32 [media] i2c: fix platform_no_drv_owner.cocci warnings [media] cx231xx: Use wake_up_interruptible() instead of wake_up_interruptible_nr() [media] tc358743: only queue subdev notifications if devnode is set [media] tc358743: add missing Kconfig dependency/select [media] c8sectpfe: Use %pad to print 'dma_addr_t' [media] DocBook media: Fix typo "the the" in xml files [media] tc358743: make reset gpio optional [media] tc358743: set direction of reset gpio using devm_gpiod_get [media] dvbdev: document most of the functions/data structs [media] dvb_frontend.h: document the struct dvb_frontend [media] dvb-frontend.h: document struct dtv_frontend_properties [media] dvb-frontend.h: document struct dvb_frontend_ops [media] dvb: Use DVBFE_ALGO_HW where applicable [media] dvb_frontend.h: document struct analog_demod_ops [media] dvb_frontend.h: Document struct dvb_tuner_ops [media] Docbook: Document struct analog_parameters [media] dvb_frontend.h: get rid of dvbfe_modcod [media] add documentation for struct dvb_tuner_info [media] dvb_frontend: document dvb_frontend_tune_settings ... |
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Alexander Kuleshov
|
81cf09edc7 |
sh: use PFN_DOWN macro
Replace ((x) >> PAGE_SHIFT) with the predefined PFN_DOWN macro. Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
ca520cab25 |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking and atomic updates from Ingo Molnar: "Main changes in this cycle are: - Extend atomic primitives with coherent logic op primitives (atomic_{or,and,xor}()) and deprecate the old partial APIs (atomic_{set,clear}_mask()) The old ops were incoherent with incompatible signatures across architectures and with incomplete support. Now every architecture supports the primitives consistently (by Peter Zijlstra) - Generic support for 'relaxed atomics': - _acquire/release/relaxed() flavours of xchg(), cmpxchg() and {add,sub}_return() - atomic_read_acquire() - atomic_set_release() This came out of porting qwrlock code to arm64 (by Will Deacon) - Clean up the fragile static_key APIs that were causing repeat bugs, by introducing a new one: DEFINE_STATIC_KEY_TRUE(name); DEFINE_STATIC_KEY_FALSE(name); which define a key of different types with an initial true/false value. Then allow: static_branch_likely() static_branch_unlikely() to take a key of either type and emit the right instruction for the case. To be able to know the 'type' of the static key we encode it in the jump entry (by Peter Zijlstra) - Static key self-tests (by Jason Baron) - qrwlock optimizations (by Waiman Long) - small futex enhancements (by Davidlohr Bueso) - ... and misc other changes" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (63 commits) jump_label/x86: Work around asm build bug on older/backported GCCs locking, ARM, atomics: Define our SMP atomics in terms of _relaxed() operations locking, include/llist: Use linux/atomic.h instead of asm/cmpxchg.h locking/qrwlock: Make use of _{acquire|release|relaxed}() atomics locking/qrwlock: Implement queue_write_unlock() using smp_store_release() locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition locking, asm-generic: Add _{relaxed|acquire|release}() variants for 'atomic_long_t' locking, asm-generic: Rework atomic-long.h to avoid bulk code duplication locking/atomics: Add _{acquire|release|relaxed}() variants of some atomic operations locking, compiler.h: Cast away attributes in the WRITE_ONCE() magic locking/static_keys: Make verify_keys() static jump label, locking/static_keys: Update docs locking/static_keys: Provide a selftest jump_label: Provide a self-test s390/uaccess, locking/static_keys: employ static_branch_likely() x86, tsc, locking/static_keys: Employ static_branch_likely() locking/static_keys: Add selftest locking/static_keys: Add a new static_key interface locking/static_keys: Rework update logic locking/static_keys: Add static_key_{en,dis}able() helpers ... |
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Linus Torvalds
|
17e6b00ac4 |
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner: "This updated pull request does not contain the last few GIC related patches which were reported to cause a regression. There is a fix available, but I let it breed for a couple of days first. The irq departement provides: - new infrastructure to support non PCI based MSI interrupts - a couple of new irq chip drivers - the usual pile of fixlets and updates to irq chip drivers - preparatory changes for removal of the irq argument from interrupt flow handlers - preparatory changes to remove IRQF_VALID" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (129 commits) irqchip/imx-gpcv2: IMX GPCv2 driver for wakeup sources irqchip: Add bcm2836 interrupt controller for Raspberry Pi 2 irqchip: Add documentation for the bcm2836 interrupt controller irqchip/bcm2835: Add support for being used as a second level controller irqchip/bcm2835: Refactor handle_IRQ() calls out of MAKE_HWIRQ PCI: xilinx: Fix typo in function name irqchip/gic: Ensure gic_cpu_if_up/down() programs correct GIC instance irqchip/gic: Only allow the primary GIC to set the CPU map PCI/MSI: pci-xgene-msi: Consolidate chained IRQ handler install/remove unicore32/irq: Prepare puv3_gpio_handler for irq argument removal tile/pci_gx: Prepare trio_handle_level_irq for irq argument removal m68k/irq: Prepare irq handlers for irq argument removal C6X/megamode-pic: Prepare megamod_irq_cascade for irq argument removal blackfin: Prepare irq handlers for irq argument removal arc/irq: Prepare idu_cascade_isr for irq argument removal sparc/irq: Use access helper irq_data_get_affinity_mask() sparc/irq: Use helper irq_data_get_irq_handler_data() parisc/irq: Use access helper irq_data_get_affinity_mask() mn10300/irq: Use access helper irq_data_get_affinity_mask() irqchip/i8259: Prepare i8259_irq_dispatch for irq argument removal ... |
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Linus Torvalds
|
5e359bf221 |
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner: "Rather large, but nothing exiting: - new range check for settimeofday() to prevent that boot time becomes negative. - fix for file time rounding - a few simplifications of the hrtimer code - fix for the proc/timerlist code so the output of clock realtime timers is accurate - more y2038 work - tree wide conversion of clockevent drivers to the new callbacks" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (88 commits) hrtimer: Handle failure of tick_init_highres() gracefully hrtimer: Unconfuse switch_hrtimer_base() a bit hrtimer: Simplify get_target_base() by returning current base hrtimer: Drop return code of hrtimer_switch_to_hres() time: Introduce timespec64_to_jiffies()/jiffies_to_timespec64() time: Introduce current_kernel_time64() time: Introduce struct itimerspec64 time: Add the common weak version of update_persistent_clock() time: Always make sure wall_to_monotonic isn't positive time: Fix nanosecond file time rounding in timespec_trunc() timer_list: Add the base offset so remaining nsecs are accurate for non monotonic timers cris/time: Migrate to new 'set-state' interface kernel: broadcast-hrtimer: Migrate to new 'set-state' interface xtensa/time: Migrate to new 'set-state' interface unicore/time: Migrate to new 'set-state' interface um/time: Migrate to new 'set-state' interface sparc/time: Migrate to new 'set-state' interface sh/localtimer: Migrate to new 'set-state' interface score/time: Migrate to new 'set-state' interface s390/time: Migrate to new 'set-state' interface ... |
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Linus Torvalds
|
25525bea46 |
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar: "The dominant change in this cycle was the continued work to isolate kernel drivers from MTRR legacies: this tree gets rid of all kernel internal driver interfaces to MTRRs (mostly by rewriting it to proper PAT interfaces), the only access left is the /proc/mtrr ABI. This work was done by Luis R Rodriguez. There's also some related PCI interface additions for which I've Cc:-ed Bjorn" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) x86/mm/mtrr: Remove kernel internal MTRR interfaces: unexport mtrr_add() and mtrr_del() s390/io: Add pci_iomap_wc() and pci_iomap_wc_range() drivers/dma/iop-adma: Use dma_alloc_writecombine() kernel-style drivers/video/fbdev/vt8623fb: Use arch_phys_wc_add() and pci_iomap_wc() drivers/video/fbdev/s3fb: Use arch_phys_wc_add() and pci_iomap_wc() drivers/video/fbdev/arkfb.c: Use arch_phys_wc_add() and pci_iomap_wc() PCI: Add pci_iomap_wc() variants drivers/video/fbdev/gxt4500: Use pci_ioremap_wc_bar() to map framebuffer drivers/video/fbdev/kyrofb: Use arch_phys_wc_add() and pci_ioremap_wc_bar() drivers/video/fbdev/i740fb: Use arch_phys_wc_add() and pci_ioremap_wc_bar() PCI: Add pci_ioremap_wc_bar() x86/mm: Make kernel/check.c explicitly non-modular x86/mm/pat: Make mm/pageattr[-test].c explicitly non-modular x86/mm/pat: Add comments to cachemode translation tables arch/*/io.h: Add ioremap_uc() to all architectures drivers/video/fbdev/atyfb: Use arch_phys_wc_add() and ioremap_wc() drivers/video/fbdev/atyfb: Replace MTRR UC hole with strong UC drivers/video/fbdev/atyfb: Clarify ioremap() base and length used drivers/video/fbdev/atyfb: Carve out framebuffer length fudging into a helper x86/mm, asm-generic: Add IOMMU ioremap_uc() variant default ... |
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Linus Torvalds
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a1d8561172 |
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The biggest change in this cycle is the rewrite of the main SMP load
balancing metric: the CPU load/utilization. The main goal was to make
the metric more precise and more representative - see the changelog of
this commit for the gory details:
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Linus Torvalds
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26f8b7edc9 |
PCI changes for the v4.3 merge window:
Enumeration Allocate ATS struct during enumeration (Bjorn Helgaas) Embed ATS info directly into struct pci_dev (Bjorn Helgaas) Reduce size of ATS structure elements (Bjorn Helgaas) Stop caching ATS Invalidate Queue Depth (Bjorn Helgaas) iommu/vt-d: Cache PCI ATS state and Invalidate Queue Depth (Bjorn Helgaas) Move MPS configuration check to pci_configure_device() (Bjorn Helgaas) Set MPS to match upstream bridge (Keith Busch) ARM/PCI: Set MPS before pci_bus_add_devices() (Murali Karicheri) Add pci_scan_root_bus_msi() (Lorenzo Pieralisi) ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() (Lorenzo Pieralisi) Resource management Call pci_read_bridge_bases() from core instead of arch code (Lorenzo Pieralisi) PCI device hotplug pciehp: Remove unused interrupt events (Bjorn Helgaas) pciehp: Remove ignored MRL sensor interrupt events (Bjorn Helgaas) pciehp: Handle invalid data when reading from non-existent devices (Jarod Wilson) pciehp: Simplify pcie_poll_cmd() (Yijing Wang) Use "slot" and "pci_slot" for struct hotplug_slot and struct pci_slot (Yijing Wang) Protect pci_bus->slots with pci_slot_mutex, not pci_bus_sem (Yijing Wang) Hold pci_slot_mutex while searching bus->slots list (Yijing Wang) Power management Disable async suspend/resume for JMicron multi-function SATA/AHCI (Zhang Rui) Virtualization Add ACS quirks for Intel I219-LM/V (Alex Williamson) Restore ACS configuration as part of pci_restore_state() (Alexander Duyck) MSI Add pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) x86: Implement pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) Add helpers to manage pci_dev->irq and pci_dev->irq_managed (Jiang Liu) Free legacy IRQ when enabling MSI/MSI-X (Jiang Liu) ARM/PCI: Remove msi_controller from struct pci_sys_data (Lorenzo Pieralisi) Remove unused pcibios_msi_controller() hook (Lorenzo Pieralisi) Generic host bridge driver Remove dependency on ARM-specific struct hw_pci (Jayachandran C) Build setup-irq.o for arm64 (Jayachandran C) Add arm64 support (Jayachandran C) APM X-Gene host bridge driver Add APM X-Gene PCIe 64-bit prefetchable window (Duc Dang) Add support for a 64-bit prefetchable memory window (Duc Dang) Drop owner assignment from platform_driver (Krzysztof Kozlowski) Broadcom iProc host bridge driver Allow BCMA bus driver to be built as module (Hauke Mehrtens) Delete unnecessary checks before phy calls (Markus Elfring) Add arm64 support (Ray Jui) Synopsys DesignWare host bridge driver Don't complain missing *config* reg space if va_cfg0 is set (Murali Karicheri) TI DRA7xx host bridge driver Disable pm_runtime on get_sync failure (Kishon Vijay Abraham I) Add PM support (Kishon Vijay Abraham I) Clear MSE bit during suspend so clocks will idle (Kishon Vijay Abraham I) Add support to make GPIO drive PERST# line (Kishon Vijay Abraham I) Xilinx AXI host bridge driver Check for MSI interrupt flag before handling as INTx (Russell Joyce) Miscellaneous Fix Intersil/Techwell TW686[4589] AV capture class code (Krzysztof Hałasa) Use PCI_CLASS_SERIAL_USB instead of bare number (Bjorn Helgaas) Fix generic NCR 53c810 class code quirk (Bjorn Helgaas) Fix TI816X class code quirk (Bjorn Helgaas) Remove unused "pci_probe" flags (Bjorn Helgaas) Host bridge driver code simplifications (Fabio Estevam) Add dev_flags bit to access VPD through function 0 (Mark Rustad) Add VPD function 0 quirk for Intel Ethernet devices (Mark Rustad) Kill off set_irq_flags() usage (Rob Herring) Remove Intel Cherrytrail D3 delays (Srinidhi Kasagar) Clean up pci_find_capability() (Wei Yang) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJV5FE/AAoJEFmIoMA60/r8I2QP/R9b9MrvH2i9tN98/lTDl7g3 czE58ZM1d4kMYtW3Pm/DrYI6y6RprAaB4ZEp5rHxlFLqBPZEQwWodA19NkjECcb6 g5qKWOdIWA4T6Jaab6a/yCmAFa0jni7iAmmTYqca9o3Xj7tFovxDxqPSYkh+rer0 v+1sAr/4HXSiN339KR6teEF3VZqLFp6ewMydQlVS+R7kAOHHYQDqoo9WF6JnIoL5 PO3Kbmr1WN3fZY3s98yLq1x6XmLrLlmGdJI+2r+KewO4r/05CL6wTVP/oTMi+Eti dueseeISlOTcTAUhk87Vap23uJPeB/rJbYoFdCr7+0AkZGe/U/E2dpZm2wyMcCvq OrATuFymgzIuJm5uUPsdH4lzsX97U9BcDccracfC38rYnP5u3bqHCjw8HJzANR7p VYbFBzc5ZCCUYtQAjyrKt2820AvTFo+Bu+z75IsJO8LQQgv/zGtQQ8grIQeAjH+l sAe3xOTwzZnq6Obl4qb/GElHmIGUbQ1X4Dx1mliiijKMKkhYHOA0iFnB/OBILmEZ wHzKU8chWcI9lip0aaX8q9i/qovdVUt2+rdo/N40l7YY66x4jkNgQQXZX+FSKk6H stTvEBQgK28EKCHDxMsgzTGIqllSyk4DnRMA7ij1hRWqdUbGk7wOPTvm9QSwNDWe SokuWzAQD9YeMRGdsYjZ =DX1r -----END PGP SIGNATURE----- Merge tag 'pci-v4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "PCI changes for the v4.3 merge window: Enumeration: - Allocate ATS struct during enumeration (Bjorn Helgaas) - Embed ATS info directly into struct pci_dev (Bjorn Helgaas) - Reduce size of ATS structure elements (Bjorn Helgaas) - Stop caching ATS Invalidate Queue Depth (Bjorn Helgaas) - iommu/vt-d: Cache PCI ATS state and Invalidate Queue Depth (Bjorn Helgaas) - Move MPS configuration check to pci_configure_device() (Bjorn Helgaas) - Set MPS to match upstream bridge (Keith Busch) - ARM/PCI: Set MPS before pci_bus_add_devices() (Murali Karicheri) - Add pci_scan_root_bus_msi() (Lorenzo Pieralisi) - ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() (Lorenzo Pieralisi) Resource management: - Call pci_read_bridge_bases() from core instead of arch code (Lorenzo Pieralisi) PCI device hotplug: - pciehp: Remove unused interrupt events (Bjorn Helgaas) - pciehp: Remove ignored MRL sensor interrupt events (Bjorn Helgaas) - pciehp: Handle invalid data when reading from non-existent devices (Jarod Wilson) - pciehp: Simplify pcie_poll_cmd() (Yijing Wang) - Use "slot" and "pci_slot" for struct hotplug_slot and struct pci_slot (Yijing Wang) - Protect pci_bus->slots with pci_slot_mutex, not pci_bus_sem (Yijing Wang) - Hold pci_slot_mutex while searching bus->slots list (Yijing Wang) Power management: - Disable async suspend/resume for JMicron multi-function SATA/AHCI (Zhang Rui) Virtualization: - Add ACS quirks for Intel I219-LM/V (Alex Williamson) - Restore ACS configuration as part of pci_restore_state() (Alexander Duyck) MSI: - Add pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) - x86: Implement pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) - Add helpers to manage pci_dev->irq and pci_dev->irq_managed (Jiang Liu) - Free legacy IRQ when enabling MSI/MSI-X (Jiang Liu) - ARM/PCI: Remove msi_controller from struct pci_sys_data (Lorenzo Pieralisi) - Remove unused pcibios_msi_controller() hook (Lorenzo Pieralisi) Generic host bridge driver: - Remove dependency on ARM-specific struct hw_pci (Jayachandran C) - Build setup-irq.o for arm64 (Jayachandran C) - Add arm64 support (Jayachandran C) APM X-Gene host bridge driver: - Add APM X-Gene PCIe 64-bit prefetchable window (Duc Dang) - Add support for a 64-bit prefetchable memory window (Duc Dang) - Drop owner assignment from platform_driver (Krzysztof Kozlowski) Broadcom iProc host bridge driver: - Allow BCMA bus driver to be built as module (Hauke Mehrtens) - Delete unnecessary checks before phy calls (Markus Elfring) - Add arm64 support (Ray Jui) Synopsys DesignWare host bridge driver: - Don't complain missing *config* reg space if va_cfg0 is set (Murali Karicheri) TI DRA7xx host bridge driver: - Disable pm_runtime on get_sync failure (Kishon Vijay Abraham I) - Add PM support (Kishon Vijay Abraham I) - Clear MSE bit during suspend so clocks will idle (Kishon Vijay Abraham I) - Add support to make GPIO drive PERST# line (Kishon Vijay Abraham I) Xilinx AXI host bridge driver: - Check for MSI interrupt flag before handling as INTx (Russell Joyce) Miscellaneous: - Fix Intersil/Techwell TW686[4589] AV capture class code (Krzysztof Hałasa) - Use PCI_CLASS_SERIAL_USB instead of bare number (Bjorn Helgaas) - Fix generic NCR 53c810 class code quirk (Bjorn Helgaas) - Fix TI816X class code quirk (Bjorn Helgaas) - Remove unused "pci_probe" flags (Bjorn Helgaas) - Host bridge driver code simplifications (Fabio Estevam) - Add dev_flags bit to access VPD through function 0 (Mark Rustad) - Add VPD function 0 quirk for Intel Ethernet devices (Mark Rustad) - Kill off set_irq_flags() usage (Rob Herring) - Remove Intel Cherrytrail D3 delays (Srinidhi Kasagar) - Clean up pci_find_capability() (Wei Yang)" * tag 'pci-v4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (72 commits) PCI: Disable async suspend/resume for JMicron multi-function SATA/AHCI PCI: Set MPS to match upstream bridge PCI: Move MPS configuration check to pci_configure_device() PCI: Drop references acquired by of_parse_phandle() PCI/MSI: Remove unused pcibios_msi_controller() hook ARM/PCI: Remove msi_controller from struct pci_sys_data ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() PCI: Add pci_scan_root_bus_msi() ARM/PCI: Replace panic with WARN messages on failures PCI: generic: Add arm64 support PCI: Build setup-irq.o for arm64 PCI: generic: Remove dependency on ARM-specific struct hw_pci PCI: imx6: Simplify a trivial if-return sequence PCI: spear: Use BUG_ON() instead of condition followed by BUG() PCI: dra7xx: Remove unneeded use of IS_ERR_VALUE() PCI: Remove pci_ats_enabled() PCI: Stop caching ATS Invalidate Queue Depth PCI: Move ATS declarations to linux/pci.h so they're all together PCI: Clean up ATS error handling PCI: Use pci_physfn() rather than looking up physfn by hand ... |
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Dan Williams
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033fbae988 |
mm: ZONE_DEVICE for "device memory"
While pmem is usable as a block device or via DAX mappings to userspace there are several usage scenarios that can not target pmem due to its lack of struct page coverage. In preparation for "hot plugging" pmem into the vmemmap add ZONE_DEVICE as a new zone to tag these pages separately from the ones that are subject to standard page allocations. Importantly "device memory" can be removed at will by userspace unbinding the driver of the device. Having a separate zone prevents allocation and otherwise marks these pages that are distinct from typical uniform memory. Device memory has different lifetime and performance characteristics than RAM. However, since we have run out of ZONES_SHIFT bits this functionality currently depends on sacrificing ZONE_DMA. Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Jerome Glisse <j.glisse@gmail.com> [hch: various simplifications in the arch interface] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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Ingo Molnar
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8d58b66ed2 |
Linux 4.2-rc8
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJV2pUkAAoJEHm+PkMAQRiGCIoH/Rb29ZjdCoZJp9OtnjAG+qRc bG3YuomIdib86x7xHRKKaLWBa7din7IYjuwT/X4S4duO5a1R5Lp1sRG3IlGfhT0W nBNbjFl4q4bOyiTPtTRTYyh4g5UQv4IuyCnCmZyCTJyVi/O6HVM9TWKUzm68P2dJ 30LwLUcQJ+mHueGJwFBAXe2BaojEpvYCdSX6tvbrQ/8X3FrVExZXuJl4uMYNFYNK ZwG/v5t7tYOiAe76JGbrEuVFPZWLPEW7amHOWR0T4Ye4nWTlBgx7fENiNRlfgcvI CM16l/xkyrZQ3Q5jZy1qYDfdHYF++dyEDysX4w1ae/X0aaLZn7l+u5VQD6WpkQQ= =IF6I -----END PGP SIGNATURE----- Merge tag 'v4.2-rc8' into x86/mm, before applying new changes Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Dan Williams
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92281dee82 |
arch: introduce memremap()
Existing users of ioremap_cache() are mapping memory that is known in advance to not have i/o side effects. These users are forced to cast away the __iomem annotation, or otherwise neglect to fix the sparse errors thrown when dereferencing pointers to this memory. Provide memremap() as a non __iomem annotated ioremap_*() in the case when ioremap is otherwise a pointer to cacheable memory. Empirically, ioremap_<cacheable-type>() call sites are seeking memory-like semantics (e.g. speculative reads, and prefetching permitted). memremap() is a break from the ioremap implementation pattern of adding a new memremap_<type>() for each mapping type and having silent compatibility fall backs. Instead, the implementation defines flags that are passed to the central memremap() and if a mapping type is not supported by an arch memremap returns NULL. We introduce a memremap prototype as a trivial wrapper of ioremap_cache() and ioremap_wt(). Later, once all ioremap_cache() and ioremap_wt() usage has been removed from drivers we teach archs to implement arch_memremap() with the ability to strictly enforce the mapping type. Cc: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |