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2016-02-29ata: ahci: don't mark HotPlugCapable Ports as external/removableManuel Lauss1-2/+1
The HPCP bit is set by bioses for on-board sata ports either because they think sata is hotplug capable in general or to allow Windows to display a "device eject" icon on ports which are routed to an external connector bracket. However in Redhat Bugzilla #1310682, users report that with kernel 4.4, where this bit test first appeared, a lot of partitions on sata drives are now mounted automatically. This patch should fix redhat and a lot of other distros which unconditionally automount all devices which have the "removable" bit set. Signed-off-by: Manuel Lauss <[email protected]> Signed-off-by: Tejun Heo <[email protected]> Fixes: 8a3e33cf92c7 ("ata: ahci: find eSATA ports and flag them as removable" changes userspace behavior) Link: http://lkml.kernel.org/g/[email protected] Cc: [email protected] #v4.4+
2016-02-29ahci: Workaround for ThunderX Errata#22536Tirumalesh Chalamarla1-0/+43
Due to Errata in ThunderX, HOST_IRQ_STAT should be cleared before leaving the interrupt handler. The patch attempts to satisfy the need. Changes from V2: - removed newfile - code is now under CONFIG_ARM64 Changes from V1: - Rebased on top of libata/for-4.6 - Moved ThunderX intr handler to new file tj: Minor adjustments to comments. Signed-off-by: Tirumalesh Chalamarla <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2016-02-25libata: Align ata_device's id on a cachelineHarvey Hunt1-1/+1
The id buffer in ata_device is a DMA target, but it isn't explicitly cacheline aligned. Due to this, adjacent fields can be overwritten with stale data from memory on non coherent architectures. As a result, the kernel is sometimes unable to communicate with an ATA device. Fix this by ensuring that the id buffer is cacheline aligned. This issue is similar to that fixed by Commit 84bda12af31f ("libata: align ap->sector_buf"). Signed-off-by: Harvey Hunt <[email protected]> Cc: [email protected] Cc: <[email protected]> # 2.6.18 Signed-off-by: Tejun Heo <[email protected]>
2016-02-18Adding Intel Lewisburg device IDs for SATAAlexandra Yates1-0/+6
This patch complements the list of device IDs previously added for lewisburg sata. Signed-off-by: Alexandra Yates <[email protected]> Signed-off-by: Tejun Heo <[email protected]> Cc: [email protected]
2016-02-18pata-rb532-cf: get rid of the irq_to_gpio() callGabor Juhos1-1/+10
The RB532 platform specific irq_to_gpio() implementation has been removed with commit 832f5dacfa0b ("MIPS: Remove all the uses of custom gpio.h"). Now the platform uses the generic stub which causes the following error: pata-rb532-cf pata-rb532-cf: no GPIO found for irq149 pata-rb532-cf: probe of pata-rb532-cf failed with error -2 Drop the irq_to_gpio() call and get the GPIO number from platform data instead. After this change, the driver works again: scsi host0: pata-rb532-cf ata1: PATA max PIO4 irq 149 ata1.00: CFA: CF 1GB, 20080820, max MWDMA4 ata1.00: 1989792 sectors, multi 0: LBA ata1.00: configured for PIO4 scsi 0:0:0:0: Direct-Access ATA CF 1GB 0820 PQ: 0\ ANSI: 5 sd 0:0:0:0: [sda] 1989792 512-byte logical blocks: (1.01 GB/971 MiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't\ support DPO or FUA sda: sda1 sda2 sd 0:0:0:0: [sda] Attached SCSI disk Fixes: 832f5dacfa0b ("MIPS: Remove all the uses of custom gpio.h") Cc: Alban Bedel <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: <[email protected]> #v4.3+ Signed-off-by: Gabor Juhos <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2016-02-11libata: fix HDIO_GET_32BIT ioctlArnd Bergmann2-8/+7
As reported by Soohoon Lee, the HDIO_GET_32BIT ioctl does not work correctly in compat mode with libata. I have investigated the issue further and found multiple problems that all appeared with the same commit that originally introduced HDIO_GET_32BIT handling in libata back in linux-2.6.8 and presumably also linux-2.4, as the code uses "copy_to_user(arg, &val, 1)" to copy a 'long' variable containing either 0 or 1 to user space. The problems with this are: * On big-endian machines, this will always write a zero because it stores the wrong byte into user space. * In compat mode, the upper three bytes of the variable are updated by the compat_hdio_ioctl() function, but they now contain uninitialized stack data. * The hdparm tool calling this ioctl uses a 'static long' variable to store the result. This means at least the upper bytes are initialized to zero, but calling another ioctl like HDIO_GET_MULTCOUNT would fill them with data that remains stale when the low byte is overwritten. Fortunately libata doesn't implement any of the affected ioctl commands, so this would only happen when we query both an IDE and an ATA device in the same command such as "hdparm -N -c /dev/hda /dev/sda" * The libata code for unknown reasons started using ATA_IOC_GET_IO32 and ATA_IOC_SET_IO32 as aliases for HDIO_GET_32BIT and HDIO_SET_32BIT, while the ioctl commands that were added later use the normal HDIO_* names. This is harmless but rather confusing. This addresses all four issues by changing the code to use put_user() on an 'unsigned long' variable in HDIO_GET_32BIT, like the IDE subsystem does, and by clarifying the names of the ioctl commands. Signed-off-by: Arnd Bergmann <[email protected]> Reported-by: Soohoon Lee <[email protected]> Tested-by: Soohoon Lee <[email protected]> Cc: [email protected] Signed-off-by: Tejun Heo <[email protected]>
2016-02-11ahci_xgene: Implement the workaround to fix the missing of the edge ↵Suman Tripathi1-1/+46
interrupt for the HOST_IRQ_STAT. Due to H/W errata, the HOST_IRQ_STAT register misses the edge interrupt when clearing the HOST_IRQ_STAT register and hardware reporting the PORT_IRQ_STAT register happens to be at the same clock cycle. Signed-off-by: Suman Tripathi <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2016-02-11ata: Remove the AHCI_HFLAG_EDGE_IRQ support from libahci.Suman Tripathi3-45/+41
The flexibility to override the irq handles in the LLD's are already present, so controllers implementing a edge trigger latch can implement their own interrupt handler inside the driver. This patch removes the AHCI_HFLAG_EDGE_IRQ support from libahci and moves edge irq handling to ahci_xgene. tj: Minor update to description. Signed-off-by: Suman Tripathi <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2016-02-11libahci: Implement the capability to override the generic ahci interrupt ↵Suman Tripathi2-7/+22
handler. This patch implements the capability to override the generic AHCI interrupt handler so that specific ahci drivers can implement their own custom interrupt handler routines. It also exports ahci_handle_port_intr so that custom irq_handler implementations can use it. tj: s/ahci_irq_handler/irq_handler/ and updated description. Signed-off-by: Suman Tripathi <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2016-02-10ahci: Intel DNV device IDs SATAAlexandra Yates1-0/+20
Adding Intel codename DNV platform device IDs for SATA. Signed-off-by: Alexandra Yates <[email protected]> Signed-off-by: Tejun Heo <[email protected]> Cc: [email protected]
2016-02-01libata: fix sff host state machine locking while pollingTejun Heo1-21/+11
The bulk of ATA host state machine is implemented by ata_sff_hsm_move(). The function is called from either the interrupt handler or, if polling, a work item. Unlike from the interrupt path, the polling path calls the function without holding the host lock and ata_sff_hsm_move() selectively grabs the lock. This is completely broken. If an IRQ triggers while polling is in progress, the two can easily race and end up accessing the hardware and updating state machine state at the same time. This can put the state machine in an illegal state and lead to a crash like the following. kernel BUG at drivers/ata/libata-sff.c:1302! invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN Modules linked in: CPU: 1 PID: 10679 Comm: syz-executor Not tainted 4.5.0-rc1+ #300 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 task: ffff88002bd00000 ti: ffff88002e048000 task.ti: ffff88002e048000 RIP: 0010:[<ffffffff83a83409>] [<ffffffff83a83409>] ata_sff_hsm_move+0x619/0x1c60 ... Call Trace: <IRQ> [<ffffffff83a84c31>] __ata_sff_port_intr+0x1e1/0x3a0 drivers/ata/libata-sff.c:1584 [<ffffffff83a85611>] ata_bmdma_port_intr+0x71/0x400 drivers/ata/libata-sff.c:2877 [< inline >] __ata_sff_interrupt drivers/ata/libata-sff.c:1629 [<ffffffff83a85bf3>] ata_bmdma_interrupt+0x253/0x580 drivers/ata/libata-sff.c:2902 [<ffffffff81479f98>] handle_irq_event_percpu+0x108/0x7e0 kernel/irq/handle.c:157 [<ffffffff8147a717>] handle_irq_event+0xa7/0x140 kernel/irq/handle.c:205 [<ffffffff81484573>] handle_edge_irq+0x1e3/0x8d0 kernel/irq/chip.c:623 [< inline >] generic_handle_irq_desc include/linux/irqdesc.h:146 [<ffffffff811a92bc>] handle_irq+0x10c/0x2a0 arch/x86/kernel/irq_64.c:78 [<ffffffff811a7e4d>] do_IRQ+0x7d/0x1a0 arch/x86/kernel/irq.c:240 [<ffffffff86653d4c>] common_interrupt+0x8c/0x8c arch/x86/entry/entry_64.S:520 <EOI> [< inline >] rcu_lock_acquire include/linux/rcupdate.h:490 [< inline >] rcu_read_lock include/linux/rcupdate.h:874 [<ffffffff8164b4a1>] filemap_map_pages+0x131/0xba0 mm/filemap.c:2145 [< inline >] do_fault_around mm/memory.c:2943 [< inline >] do_read_fault mm/memory.c:2962 [< inline >] do_fault mm/memory.c:3133 [< inline >] handle_pte_fault mm/memory.c:3308 [< inline >] __handle_mm_fault mm/memory.c:3418 [<ffffffff816efb16>] handle_mm_fault+0x2516/0x49a0 mm/memory.c:3447 [<ffffffff8127dc16>] __do_page_fault+0x376/0x960 arch/x86/mm/fault.c:1238 [<ffffffff8127e358>] trace_do_page_fault+0xe8/0x420 arch/x86/mm/fault.c:1331 [<ffffffff8126f514>] do_async_page_fault+0x14/0xd0 arch/x86/kernel/kvm.c:264 [<ffffffff86655578>] async_page_fault+0x28/0x30 arch/x86/entry/entry_64.S:986 Fix it by ensuring that the polling path is holding the host lock before entering ata_sff_hsm_move() so that all hardware accesses and state updates are performed under the host lock. Signed-off-by: Tejun Heo <[email protected]> Reported-and-tested-by: Dmitry Vyukov <[email protected]> Link: http://lkml.kernel.org/g/CACT4Y+b_JsOxJu2EZyEf+mOXORc_zid5V1-pLZSroJVxyWdSpw@mail.gmail.com Cc: [email protected]
2016-01-29libata-sff: use WARN instead of BUG on illegal host state machine stateTejun Heo1-1/+2
ata_sff_hsm_move() triggers BUG if it sees a host state machine state that it dind't expect. The risk for data corruption when the condition occurs is low as it's highly unlikely that it would lead to spurious completion of commands. The BUG occasionally triggered for subtle race conditions in the driver. Let's downgrade it to WARN so that it doesn't kill the machine unnecessarily. Signed-off-by: Tejun Heo <[email protected]> Cc: Dmitry Vyukov <[email protected]>
2016-01-25libata: disable forced PORTS_IMPL for >= AHCI 1.3Tejun Heo1-2/+2
Some early controllers incorrectly reported zero ports in PORTS_IMPL register and the ahci driver fabricates PORTS_IMPL from the number of ports in those cases. This hasn't mattered but with the new nvme controllers there are cases where zero PORTS_IMPL is valid and should be honored. Disable the workaround for >= AHCI 1.3. Signed-off-by: Tejun Heo <[email protected]> Reported-by: Andy Lutomirski <[email protected]> Link: http://lkml.kernel.org/g/CALCETrU7yMvXEDhjAUShoHEhDwifJGapdw--BKxsP0jmjKGmRw@mail.gmail.com Cc: Sergei Shtylyov <[email protected]> Cc: [email protected]
2016-01-25libata: blacklist a Viking flash model for MWDMA corruptionShikha Jain1-0/+1
Viking flash model VRFDFC22048UCHC-TE causes data corruption in MWDMA mode. Cc: [email protected] Signed-off-by: Shikha Jain <[email protected]> Signed-off-by: Anil Veliyankara Madam <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2016-01-25drivers: ata: wake port before DMA stop for ALPMDanesh Petigara4-1/+25
The AHCI driver code stops and starts port DMA engines at will without considering the power state of the particular port. The AHCI specification isn't very clear on how to handle this scenario, leaving implementation open to interpretation. Broadcom's STB SATA host controller is unable to handle port DMA controller restarts when the port in question is in low power mode. When a port enters partial or slumber mode, its PHY is powered down. When a controller restart is requested, the controller's internal state machine expects the PHY to be brought back up by software which never happens in this case, resulting in failures. To avoid this situation, logic is added to manually wake up the port just before its DMA engine is stopped, if the port happens to be in a low power state. HBA initiated power management ensures that the port eventually returns to its configured low power state, when the link is idle (as per the conditions listed in the spec). A new host flag is also added to ensure this logic is only exercised for hosts with the above limitation. tj: Formatting changes. Signed-off-by: Danesh Petigara <[email protected]> Reviewed-by: Markus Mayer <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2016-01-24Linux 4.5-rc1Linus Torvalds1-2/+2
2016-01-24Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds130-676/+4923
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for 4.5 plus some 4.4 fixes. The executive summary: - ATH79 platform improvments, use DT bindings for the ATH79 USB PHY. - Avoid useless rebuilds for zboot. - jz4780: Add NEMC, BCH and NAND device tree nodes - Initial support for the MicroChip's DT platform. As all the device drivers are missing this is still of limited use. - Some Loongson3 cleanups. - The unavoidable whitespace polishing. - Reduce clock skew when synchronizing the CPU cycle counters on CPU startup. - Add MIPS R6 fixes. - Lots of cleanups across arch/mips as fallout from KVM. - Lots of minor fixes and changes for IEEE 754-2008 support to the FPU emulator / fp-assist software. - Minor Ralink, BCM47xx and bcm963xx platform support improvments. - Support SMP on BCM63168" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (84 commits) MIPS: zboot: Add support for serial debug using the PROM MIPS: zboot: Avoid useless rebuilds MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function MIPS: bcm963xx: Update bcm_tag field image_sequence MIPS: bcm963xx: Move extended flash address to bcm_tag header file MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure MIPS: bcm63xx: nvram: Use nvram structure definition from header file MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure MAINTAINERS: Add KVM for MIPS entry MIPS: KVM: Add missing newline to kvm_err() MIPS: Move KVM specific opcodes into asm/inst.h MIPS: KVM: Use cacheops.h definitions MIPS: Break down cacheops.h definitions MIPS: Use EXCCODE_ constants with set_except_vector() MIPS: Update trap codes MIPS: Move Cause.ExcCode trap codes to mipsregs.h MIPS: KVM: Make kvm_mips_{init,exit}() static MIPS: KVM: Refactor added offsetof()s MIPS: KVM: Convert EXPORT_SYMBOL to _GPL ...
2016-01-24Merge tag 'platform-drivers-x86-v4.5-2' of ↵Linus Torvalds3-3/+10
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver updates from Darren Hart: "Emergency travel prevented me from completing my final testing on this until today. Nothing here that couldn't wait until RC1 fixes, but I thought it best to get it out sooner rather than later as it does contain a build warning fix. Summary: A build warning fix, MAINTAINERS cleanup, and a new DMI quirk: ideapad-laptop: - Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: - Combine multiple telemetry entries intel_telemetry_debugfs: - Fix unused warnings in telemetry debugfs" * tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: Combine multiple telemetry entries intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs
2016-01-24Merge branch 'next' of ↵Linus Torvalds9-39/+304
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: "The top merge commit was re-generated yesterday because two topic branches were dropped from this pull request in the last minute due to some unaddressed comments. All the other material has been in linux-next for quite a while. Specifics: - Enhance thermal core to handle unexpected device cooling states after fresh boot and system resume. From Zhang Rui and Chen Yu. - Several fixes and cleanups on Rockchip and RCAR thermal drivers. From Caesar Wang and Kuninori Morimoto. - Add Broxton support for Intel processor thermal reporting device driver. From Amy Wiles" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: trip_point_temp_store() calls thermal_zone_device_update() thermal: rcar: rcar_thermal_get_temp() return error if strange temp thermal: rcar: check irq possibility in rcar_thermal_irq_xxx() thermal: rcar: check every rcar_thermal_update_temp() return value thermal: rcar: move rcar_thermal_dt_ids to upside thermal: rockchip: Support the RK3399 SoCs in thermal driver thermal: rockchip: Support the RK3228 SoCs in thermal driver dt-bindings: rockchip-thermal: Support the RK3228/RK3399 SoCs compatible thermal: rockchip: fix a trivial typo Thermal: Enable Broxton SoC thermal reporting device thermal: constify pch_dev_ops structure Thermal: do thermal zone update after a cooling device registered Thermal: handle thermal zone device properly during system sleep Thermal: initialize thermal zone device correctly
2016-01-24Merge tag 'for-linus-4.5-merge-window' of ↵Linus Torvalds2-43/+47
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs Pull 9p updates from Eric Van Hensbergen: "Sorry for the last minute pull request, there's was a change that didn't get pulled into for-next until two weeks ago and I wanted to give it some bake time. Summary: Rework and error handling fixes, primarily in the fscatch and fd transports" * tag 'for-linus-4.5-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: fs/9p: use fscache mutex rather than spinlock 9p: trans_fd, bail out if recv fcall if missing 9p: trans_fd, read rework to use p9_parse_header net/9p: Add device name details on error
2016-01-24Merge branch 'for-linus' of ↵Linus Torvalds11-240/+501
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates from Sage Weil: "The two main changes are aio support in CephFS, and a series that fixes several issues in the authentication key timeout/renewal code. On top of that are a variety of cleanups and minor bug fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: remove outdated comment libceph: kill off ceph_x_ticket_handler::validity libceph: invalidate AUTH in addition to a service ticket libceph: fix authorizer invalidation, take 2 libceph: clear messenger auth_retry flag if we fault libceph: fix ceph_msg_revoke() libceph: use list_for_each_entry_safe ceph: use i_size_{read,write} to get/set i_size ceph: re-send AIO write request when getting -EOLDSNAP error ceph: Asynchronous IO support ceph: Avoid to propagate the invalid page point ceph: fix double page_unlock() in page_mkwrite() rbd: delete an unnecessary check before rbd_dev_destroy() libceph: use list_next_entry instead of list_entry_next ceph: ceph_frag_contains_value can be boolean ceph: remove unused functions in ceph_frag.h
2016-01-24Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds16-52/+238
Pull SMB3 fixes from Steve French: "A collection of CIFS/SMB3 fixes. It includes a couple bug fixes, a few for improved debugging of cifs.ko and some improvements to the way cifs does key generation. I do have some additional bug fixes I expect in the next week or two (to address a problem found by xfstest, and some fixes for SMB3.11 dialect, and a couple patches that just came in yesterday that I am reviewing)" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: cifs_dbg() outputs an uninitialized buffer in cifs_readdir() cifs: fix race between call_async() and reconnect() Prepare for encryption support (first part). Add decryption and encryption key generation. Thanks to Metze for helping with this. cifs: Allow using O_DIRECT with cache=loose cifs: Make echo interval tunable cifs: Check uniqueid for SMB2+ and return -ESTALE if necessary Print IP address of unresponsive server cifs: Ratelimit kernel log messages
2016-01-24ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi listJosh Boyer1-0/+7
Like the Yoga 900 models the Lenovo Yoga 700 does not have a hw rfkill switch, and trying to read the hw rfkill switch through the ideapad module causes it to always reported blocking breaking wifi. This commit adds the Lenovo Yoga 700 to the no_hw_rfkill dmi list, fixing the wifi breakage. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1295272 Tested-by: <[email protected]> Cc: [email protected] Signed-off-by: Josh Boyer <[email protected]> Signed-off-by: Darren Hart <[email protected]>
2016-01-24MAINTAINERS: Combine multiple telemetry entriesSouvik Kumar Chakravarty1-3/+1
This patch combines all the telemetry file entries in MAINTAINERS via wildcard. Signed-off-by: Souvik Kumar Chakravarty <[email protected]> Signed-off-by: Darren Hart <[email protected]>
2016-01-24intel_telemetry_debugfs: Fix unused warnings in telemetry debugfsSouvik Kumar Chakravarty1-0/+2
This patch fixes compile time warnings when CONFIG_PM_SLEEP is undefined. In this case sleep related counters are unused. Signed-off-by: Souvik Kumar Chakravarty <[email protected]> Signed-off-by: Darren Hart <[email protected]>
2016-01-24vmstat: Remove BUG_ON from vmstat_updateChristoph Lameter1-11/+1
If we detect that there is nothing to do just set the flag and do not check if it was already set before. Races really do not matter. If the flag is set by any code then the shepherd will start dealing with the situation and reenable the vmstat workers when necessary again. Since commit 0eb77e988032 ("vmstat: make vmstat_updater deferrable again and shut down on idle") quiet_vmstat might update cpu_stat_off and mark a particular cpu to be handled by vmstat_shepherd. This might trigger a VM_BUG_ON in vmstat_update because the work item might have been sleeping during the idle period and see the cpu_stat_off updated after the wake up. The VM_BUG_ON is therefore misleading and no more appropriate. Moreover it doesn't really suite any protection from real bugs because vmstat_shepherd will simply reschedule the vmstat_work anytime it sees a particular cpu set or vmstat_update would do the same from the worker context directly. Even when the two would race the result wouldn't be incorrect as the counters update is fully idempotent. Reported-by: Sasha Levin <[email protected]> Signed-off-by: Christoph Lameter <[email protected]> Acked-by: Michal Hocko <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: Tetsuo Handa <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-01-24Merge branch '4.4-fixes' into mips-for-linux-nextRalf Baechle7-4/+14
2016-01-24MIPS: zboot: Add support for serial debug using the PROMAlban Bedel3-0/+12
As most platforms implement the PROM serial interface prom_putchar() add a simple bridge to allow re-using this code for zboot. Signed-off-by: Alban Bedel <[email protected]> Cc: Alex Smith <[email protected]> Cc: Andrew Bresticker <[email protected]> Cc: Wu Zhangjin <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11811/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: zboot: Avoid useless rebuildsAlban Bedel1-6/+8
Add dummy.o to the targets list, and fill targets automatically from $(vmlinuzobjs) to avoid having to maintain two lists. When building with XZ compression copy ashldi3.c to the build directory to use a different object file for the kernel and zboot. Without this the same object file need to be build with different flags which cause a rebuild at every run. Signed-off-by: Alban Bedel <[email protected]> Cc: [email protected] Cc: Alex Smith <[email protected]> Cc: Wu Zhangjin <[email protected]> Cc: Andrew Bresticker <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11810/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIBFlorian Fainelli1-0/+1
Allow BMIPS_GENERIC supported platforms to build GPIO controller drivers. Signed-off-by: Florian Fainelli <[email protected]> Reviewed-by: Dragan Stancevic <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: Florian Fainelli <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/12019/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() functionSimon Arlott2-13/+0
Remove bcm63xx_nvram_get_psi_size() as it now has no users. Signed-off-by: Simon Arlott <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Brian Norris <[email protected]> Cc: Kevin Cernekee <[email protected]> Cc: Florian Fainelli <[email protected]> Cc: Jonas Gorski <[email protected]> Cc: Linux Kernel Mailing List <[email protected]> Cc: MIPS Mailing List <[email protected]> Cc: MTD Maling List <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/11836/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: bcm963xx: Update bcm_tag field image_sequenceSimon Arlott1-6/+5
The "dual_image" and "inactive_flag" fields should be merged into a single "image_sequence" field. Signed-off-by: Simon Arlott <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Brian Norris <[email protected]> Cc: Kevin Cernekee <[email protected]> Cc: Florian Fainelli <[email protected]> Cc: Jonas Gorski <[email protected]> Cc: Linux Kernel Mailing List <[email protected]> Cc: MIPS Mailing List <[email protected]> Cc: MTD Maling List <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/11834/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: bcm963xx: Move extended flash address to bcm_tag header fileSimon Arlott2-4/+7
The extended flash address needs to be subtracted from bcm_tag flash image offsets. Move this value to the bcm_tag header file. Renamed define name to consistently use bcm963xx for flash layout which should be considered a property of the board and not the SoC (i.e. bcm63xx could theoretically be used on a board without CFE or any flash). Signed-off-by: Simon Arlott <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Brian Norris <[email protected]> Cc: Kevin Cernekee <[email protected]> Cc: Florian Fainelli <[email protected]> Cc: Jonas Gorski <[email protected]> Cc: Linux Kernel Mailing List <[email protected]> Cc: MIPS Mailing List <[email protected]> Cc: MTD Maling List <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/11833/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structureSimon Arlott3-4/+7
Move Broadcom BCM963xx image tag data structure to include/linux/ so that drivers outside of mach-bcm63xx can use it. Signed-off-by: Simon Arlott <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Brian Norris <[email protected]> Cc: Kevin Cernekee <[email protected]> Cc: Florian Fainelli <[email protected]> Cc: Jonas Gorski <[email protected]> Cc: Linux Kernel Mailing List <[email protected]> Cc: MIPS Mailing List <[email protected]> Cc: MTD Maling List <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/11832/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: bcm63xx: nvram: Use nvram structure definition from header fileSimon Arlott1-32/+3
Use the common definition of the nvram structure from the header file include/linux/bcm963xx_nvram.h instead of maintaining a separate copy. Read the version 5 size of nvram data from memory and then call the new checksum verification function from the header file. Signed-off-by: Simon Arlott <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Brian Norris <[email protected]> Cc: Kevin Cernekee <[email protected]> Cc: Florian Fainelli <[email protected]> Cc: Jonas Gorski <[email protected]> Cc: Linux Kernel Mailing List <[email protected]> Cc: MIPS Mailing List <[email protected]> Cc: MTD Maling List <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/11831/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structureSimon Arlott2-0/+113
Broadcom BCM963xx boards have multiple nvram variants across different SoCs with additional checksum fields added whenever the size of the nvram was extended. Add this structure as a header file so that multiple drivers can use it. Signed-off-by: Simon Arlott <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Brian Norris <[email protected]> Cc: Kevin Cernekee <[email protected]> Cc: Florian Fainelli <[email protected]> Cc: Jonas Gorski <[email protected]> Cc: Linux Kernel Mailing List <[email protected]> Cc: MIPS Mailing List <[email protected]> Cc: MTD Maling List <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/11830/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-23Merge tag 'for-linus' of ↵Linus Torvalds174-4669/+7110
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "Initial roundup of 4.5 merge window patches - Remove usage of ib_query_device and instead store attributes in ib_device struct - Move iopoll out of block and into lib, rename to irqpoll, and use in several places in the rdma stack as our new completion queue polling library mechanism. Update the other block drivers that already used iopoll to use the new mechanism too. - Replace the per-entry GID table locks with a single GID table lock - IPoIB multicast cleanup - Cleanups to the IB MR facility - Add support for 64bit extended IB counters - Fix for netlink oops while parsing RDMA nl messages - RoCEv2 support for the core IB code - mlx4 RoCEv2 support - mlx5 RoCEv2 support - Cross Channel support for mlx5 - Timestamp support for mlx5 - Atomic support for mlx5 - Raw QP support for mlx5 - MAINTAINERS update for mlx4/mlx5 - Misc ocrdma, qib, nes, usNIC, cxgb3, cxgb4, mlx4, mlx5 updates - Add support for remote invalidate to the iSER driver (pushed through the RDMA tree due to dependencies, acknowledged by nab) - Update to NFSoRDMA (pushed through the RDMA tree due to dependencies, acknowledged by Bruce)" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (169 commits) IB/mlx5: Unify CQ create flags check IB/mlx5: Expose Raw Packet QP to user space consumers {IB, net}/mlx5: Move the modify QP operation table to mlx5_ib IB/mlx5: Support setting Ethernet priority for Raw Packet QPs IB/mlx5: Add Raw Packet QP query functionality IB/mlx5: Add create and destroy functionality for Raw Packet QP IB/mlx5: Refactor mlx5_ib_qp to accommodate other QP types IB/mlx5: Allocate a Transport Domain for each ucontext net/mlx5_core: Warn on unsupported events of QP/RQ/SQ net/mlx5_core: Add RQ and SQ event handling net/mlx5_core: Export transport objects IB/mlx5: Expose CQE version to user-space IB/mlx5: Add CQE version 1 support to user QPs and SRQs IB/mlx5: Fix data validation in mlx5_ib_alloc_ucontext IB/sa: Fix netlink local service GFP crash IB/srpt: Remove redundant wc array IB/qib: Improve ipoib UD performance IB/mlx4: Advertise RoCE v2 support IB/mlx4: Create and use another QP1 for RoCEv2 IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers ...
2016-01-24MAINTAINERS: Add KVM for MIPS entryJames Hogan1-0/+8
I've pretty much been maintaining KVM for MIPS for a while now. Lets make it more official (and make sure I get Cc'd on relevant patches). Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11898/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: KVM: Add missing newline to kvm_err()James Hogan1-1/+1
Add missing newline to end of kvm_err string when guest PMAP couldn't be allocated. Signed-off-by: James Hogan <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11896/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: Move KVM specific opcodes into asm/inst.hJames Hogan4-28/+5
The header arch/mips/kvm/opcode.h defines a few extra opcodes which aren't in arch/mips/include/uapi/asm/inst.h. There's nothing KVM specific about them, so lets move them into inst.h where they belong and delete the header. Note that mfmcz_op is renamed to mfmc0_op to match the instruction set manual, and wait_op was already added to inst.h in commit b0a3eae2b943 ("MIPS: inst.h: define COP0 wait op"), merged in v3.16-rc1. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11895/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: KVM: Use cacheops.h definitionsJames Hogan1-22/+8
Drop the custom cache operation code definitions used by KVM for emulating guest CACHE instructions, and switch to use the existing definitions in <asm/cacheops.h>. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11893/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: Break down cacheops.h definitionsJames Hogan1-42/+64
Most of the cache op codes defined in cacheops.h are split into a 2-bit cache identifier, and a 3-bit cache op code which does largely the same thing semantically regardless of the cache identifier. To allow the use of these definitions by KVM for decoding cache ops, break the definitions down into parts where it makes sense to do so, and add masks for the Cache and Op field within the cache op. Signed-off-by: James Hogan <[email protected]> Cc: [email protected] Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11892/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: Use EXCCODE_ constants with set_except_vector()James Hogan2-30/+30
The first argument to set_except_vector is the ExcCode, which we now have definitions for. Lets make use of them. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11894/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: Update trap codesJames Hogan1-2/+10
Add a few missing trap codes. [[email protected]: Drop removal of exception codes. I don't care what the incomplete architecture spec says; it can't change existing hardware and VCEI is supported indeed.] Signed-off-by: James Hogan <[email protected]> Cc: [email protected] Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11890/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: Move Cause.ExcCode trap codes to mipsregs.hJames Hogan5-83/+80
Move the Cause.ExcCode trap code definitions from kvm_host.h to mipsregs.h, since they describe architectural bits rather than KVM specific constants, and change the prefix from T_ to EXCCODE_. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11891/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: KVM: Make kvm_mips_{init,exit}() staticJames Hogan1-2/+2
The module init and exit functions have no need to be global, so make them static. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11889/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: KVM: Refactor added offsetof()sJames Hogan1-7/+3
When calculating the offsets into the commpage for dynamically translated mtc0/mfc0 guest instructions, multiple offsetof()s are added together to find the offset of the specific register in the mips_coproc, within the commpage. Simplify each of these cases to a single offsetof() to find the offset of the specific register within the commpage. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11888/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: KVM: Convert EXPORT_SYMBOL to _GPLJames Hogan2-19/+19
Export symbols only to GPL modules to match other KVM symbols in virt/kvm/ and arch/*/kvm/. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11887/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: KVM: Drop unused kvm_mips_host_tlb_inv_index()James Hogan2-38/+0
The function kvm_mips_host_tlb_inv_index() is unused, so drop it completely. Signed-off-by: James Hogan <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11886/ Signed-off-by: Ralf Baechle <[email protected]>
2016-01-24MIPS: Move definition of DC bit to mipsregs.hJames Hogan2-3/+2
The CAUSEB_DC and CAUSEF_DC definitions used by KVM are defined in asm/kvm_host.h, but all the other Cause register field definitions are found in asm/mipsregs.h. Lets reunite the DC bit definitions with its friends in mipsregs.h. Signed-off-by: James Hogan <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/11885/ Signed-off-by: Ralf Baechle <[email protected]>
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