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2017-06-27scsi: qla2xxx: Use FC-NVMe FC4 type for FDMI registrationDuane Grigsby
[mkp: fixed typo] Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com> Signed-off-by: Darren Trapp <darren.trapp@cavium.com> Signed-off-by: Anil Gurumurthy <anil.gurumurhty@cavium.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Send FC4 type NVMe to the management serverDuane Grigsby
This patch adds switch command support for FC-4 type of FC-NVMe (0x28) for resgistering HBA port to the management server. RFT_ID command is used to register FC-4 type of 0x28 and RFF_ID is used to register FC-4 features bits for FC-NVMe port. Signed-off-by: Darren Trapp <darren.trapp@cavium.com> Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com> Signed-off-by: Anil Gurumurthy <anil.gurumurhty@cavium.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Reviewed-By: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registrationDuane Grigsby
This code provides the interfaces to register remote and local ports of FC4 type 0x28 with the FC-NVMe transport and transports the requests (FC-NVMe FC link services and FC-NVMe commands IUs) to the fabric. It also provides the support for allocating h/w queues and aborting FC-NVMe FC requests. Signed-off-by: Darren Trapp <darren.trapp@cavium.com> Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com> Signed-off-by: Anil Gurumurthy <anil.gurumurhty@cavium.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Add FC-NVMe command handlingDuane Grigsby
This patch adds logic to handle the completion of FC-NVMe commands and creates a sub-command in the SRB command structure to manage NVMe commands. Signed-off-by: Darren Trapp <darren.trapp@cavium.com> Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com> Signed-off-by: Anil Gurumurthy <anil.gurumurhty@cavium.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Add FC-NVMe port discovery and PRLI handlingDuane Grigsby
Added logic to change the login process into an optional PRIL step for FC-NVMe ports as a separate operation, such that we can change type to 0x28 (NVMe). Currently, the driver performs the PLOGI/PRLI together as one operation, but if the discovered port is an NVMe port then we first issue the PLOGI and then we issue the PRLI. Also, the fabric discovery logic was changed to mark each discovered FC NVMe port, so that we can register them with the FC-NVMe transport later. Signed-off-by: Darren Trapp <darren.trapp@cavium.com> Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com> Signed-off-by: Anil Gurumurthy <anil.gurumurhty@cavium.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Update driver version to 9.01.00.00-khimanshu.madhani@cavium.com
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Include Exchange offload/Extended Login into FW dumpQuinn Tran
Add missing memory dump of Exchange Offload and Extended login into FW dump. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Move target stat counters from vha to qpair.Quinn Tran
Move counters to qpair to reduce cache miss. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Remove datasegs_per_cmd and datasegs_per_cont fieldQuinn Tran
These fields only hold one set of value. Replace it with macros to reduce cache thrash. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Remove unused tgt_enable_64bit_addr flagQuinn Tran
By default this flag is forced to true. Remove this flag and unneccessary check for this flag. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Add debug logging routine for qpairQuinn Tran
For target main path io routines that uses qpair, create new logging & debugging routines to use qpair instead of reaching for scsi_qla_host to reduce cache thrash. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Add function call to qpair for door bellQuinn Tran
Add call back to door bell for qpair. This help reduce access to qla_hw_data structure, in order to reduce cach thrash. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: use shadow register for ISP27XXQuinn Tran
For ISP27XX, use shadow register to read FW provided REQQ's consumer index. The shadow register is dma'ed by firmware. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: move fields from qla_hw_data to qla_qpairQuinn Tran
- Move chip_reset, enable_class_2 fields from qla_hw_data to qla_qpair to reduce cache thrash for target MQ. - Optimizations to reduce unnecessary memory load for good path io. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Add fw_started flags to qpairQuinn Tran
Add fw_started flag to qpair to reduce cache thrash. This reduce access to qla_hw_data structure by each qpair. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Add debug knob for user control workloadQuinn Tran
For Target mode, user can control the work load by placing qla2xxx's irq vector on certain CPU via the smp_affinity knob. This patch allows user to control the number of QPair's irq to be active. The irqs are allocated at driver load time until unload. The work itself is placed on the QPair based on user setting. Usage: modprobe qla2xxx qlini_mode=disabled ql2xuctrlirq=1 mount -t debugfs none /sys/kernel/debug echo 2 > /sys/kernel/debug/qla2xxx/qla2xxx_[host num]/naqp echo [cpu id] > /proc/irq/[irq id]/smp_affinity_list Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Fix mailbox failure while deleting Queue pairsSawan Chandak
In target mode driver, queue pairs are not created during driver load time, instead they are created at the configuration time after chip reset. If a user tries to load/unload driver after queue pairs are created, then there would be mailbox failure, while deleting queue pairs. Flag is added to check if queue pairs are created or not. Queue pairs will be deleted only If they were created during target configuration. Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Enable Target Multi QueueQuinn Tran
Enable Multi Queue for Target mode. At Initiator LUN scan time, each LUN is assign to a QPair. Each QPair is affinitize to certain CPU. When new cmd arrives from the wire, the lunid is used to search for qpair. The qpair's affinitized cpuid will be used to queue up the work element. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Preparation for Target MQ.Quinn Tran
In Current code, Req Q 0, RespQ 0 & hardware_lock are the main resources for sending and process completion of Target IO. These resources are now referenced behind a new qpair/"struct qla_qpair base_qpair". Main path IO handle will access those resources via the qpair pointer in preparation for Target MQ. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-27scsi: qla2xxx: Combine Active command arrays.Quinn Tran
Merge active/outstanding cmd arrays from target side and initiator side together in prepration for Target Multi Queue support. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-28ACPI: EC: Fix EC command visibility for dynamic debugLv Zheng
acpi_ec_cmd_string() currently is only enabled for "DEBUG" macro, but users trend to use CONFIG_DYNAMIC_DEBUG and enable ec.c pr_debug() print-outs by "dyndbg='file ec.c +p'". In this use case, all command names are turned into UNDEF and the log is confusing. This affects bugzilla triage work. This patch fixes this issue by enabling acpi_ec_cmd_string() for CONFIG_DYNAMIC_DEBUG. Tested-by: Wang Wendy <wendy.wang@intel.com> Tested-by: Feng Chenzhou <chenzhoux.feng@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28ACPI: EC: Fix an EC event IRQ storming issueLv Zheng
The EC event IRQ (SCI_EVT) can only be handled by submitting QR_EC. As the EC driver handles SCI_EVT in a workqueue, after SCI_EVT is flagged and before QR_EC is submitted, there is a period risking IRQ storming. EC IRQ must be masked for this period but linux EC driver never does so. No end user notices the IRQ storming and no developer fixes this known issue because: 1. The EC IRQ is always edge triggered GPE, and 2. The kernel can execute no-op EC IRQ handler very fast. For edge-triggered EC GPE platforms, it is only reported of post-resume EC event lost issues, there won't be an IRQ storming. For level triggered EC GPE platforms, fortunately the kernel is always fast enough to execute such a no-op EC IRQ handler so that the IRQ handler won't be accumulated to starve the task contexts, causing a real IRQ storming. But the IRQ storming actually can still happen when: 1. The EC IRQ performs like level triggered GPE, and 2. The kernel EC debugging log is turned on but the console is slow enough. There are more and more platforms using EC GPE as wake GPE where the EC GPE is likely designed as level triggered. Then when EC debugging log is enabled, the EC IRQ handler is no longer a no-op but dumps IRQ status to the consoles. If the consoles are slow enough, the EC IRQs can arrive much faster than executing the handler. Finally the accumulated EC event IRQ handlers starve the task contexts, causing the IRQ storming to occur, and the kernel hangs can be observed during boot/resume. This patch fixes this issue by masking EC IRQ for this period: 1. Begins when there is an SCI_EVT IRQ pending, and 2. Ends when there is a QR_EC completed (SCI_EVT acknowledged). Tested-by: Wang Wendy <wendy.wang@intel.com> Tested-by: Feng Chenzhou <chenzhoux.feng@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27drbd: Drop unnecessary staticJulia Lawall
Drop static on a local variable, when the variable is initialized before any use, on every possible execution path through the function. The static has no benefit, and dropping it reduces the code size. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @bad exists@ position p; identifier x; type T; @@ static T x@p; ... x = <+...x...+> @@ identifier x; expression e; type T; position p != bad.p; @@ -static T x@p; ... when != x when strict ?x = e; // </smpl> The change in code size is indicates by the following output from the size command. before: text data bss dec hex filename 67299 2291 1056 70646 113f6 drivers/block/drbd/drbd_nl.o after: text data bss dec hex filename 67283 2291 1056 70630 113e6 drivers/block/drbd/drbd_nl.o Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Roland Kammerer <roland.kammerer@linbit.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-06-28PM / core: Drop run_wake flag from struct dev_pm_infoRafael J. Wysocki
The run_wake flag in struct dev_pm_info is used to indicate whether or not the device is capable of generating remote wakeup signals at run time (or in the system working state), but the distinction between runtime remote wakeup and system wakeup signaling has always been rather artificial. The only practical reason for it to exist at the core level was that ACPI and PCI treated those two cases differently, but that's not the case any more after recent changes. For this reason, get rid of the run_wake flag and, when applicable, use device_set_wakeup_capable() and device_can_wakeup() instead of device_set_run_wake() and device_run_wake(), respectively. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28PCI / PM: Simplify device wakeup settings codeRafael J. Wysocki
After previous changes it is not necessary to distinguish between device wakeup for run time and device wakeup from system sleep states any more, so rework the PCI device wakeup settings code accordingly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28PCI / PM: Drop pme_interrupt flag from struct pci_devRafael J. Wysocki
The pme_interrupt flag in struct pci_dev is set when PMEs generated by the device are going to be signaled via root port PME interrupts. Ironically enough, that information is only used by the code setting up device wakeup through ACPI which returns as soon as it sees the pme_interrupt flag set while setting up "remote runtime wakeup". That is questionable, however, because in theory there may be PCIe devices using out-of-band PME signaling under root ports handled by the native PME code or devices requiring wakeup power setup to be carried out by AML. For such devices, ACPI wakeup should be invoked regardless of whether or not native PME signaling is used in general. For this reason, drop the pme_interrupt flag and rework the code using it which then allows the ACPI-based device wakeup handling in PCI to be consolidated to use one code path for both "runtime remote wakeup" and system wakeup (from sleep states). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28ACPI / PM: Consolidate device wakeup settings codeRafael J. Wysocki
Currently, there are two separate ways of handling device wakeup settings in the ACPI core, depending on whether this is runtime wakeup or system wakeup (from sleep states). However, after the previous commit eliminating the run_wake ACPI device wakeup flag, there is no difference between the two any more at the ACPI level, so they can be combined. For this reason, introduce acpi_pm_set_device_wakeup() to replace both acpi_pm_device_run_wake() and acpi_pm_device_sleep_wake() and make it check the ACPI device object's wakeup.valid flag to determine whether or not the device can be set up to generate wakeup signals. Also notice that zpodd_enable/disable_run_wake() only call device_set_run_wake() because acpi_pm_device_run_wake() called device_run_wake(), which is not done by acpi_pm_set_device_wakeup(), so drop the now redundant device_set_run_wake() calls from there. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28ACPI / PM: Drop run_wake from struct acpi_device_wakeup_flagsRafael J. Wysocki
The run_wake flag in struct acpi_device_wakeup_flags stores the information on whether or not the device can generate wakeup signals at run time, but in ACPI that really is equivalent to being able to generate wakeup signals at all. In fact, run_wake will always be set after successful executeion of acpi_setup_gpe_for_wake(), but if that fails, the device will not be able to use a wakeup GPE at all, so it won't be able to wake up the systems from sleep states too. Hence, run_wake actually means that the device is capable of triggering wakeup and so it is equivalent to the valid flag. For this reason, drop run_wake from struct acpi_device_wakeup_flags and make sure that the valid flag is only set if acpi_setup_gpe_for_wake() has been successful. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-27dax: remove default copy_from_iter fallbackDan Williams
Require all dax-drivers to register a ->copy_from_iter() operation so that it is clear which dax_operations are optional and which must be implemented for filesystem-dax to operate. Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27libnvdimm, nfit: enable support for volatile rangesDan Williams
Allow volatile nfit ranges to participate in all the same infrastructure provided for persistent memory regions. A resulting resulting namespace device will still be called "pmem", but the parent region type will be "nd_volatile". This is in preparation for disabling the dax ->flush() operation in the pmem driver when it is hosted on a volatile range. Cc: Jan Kara <jack@suse.cz> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27nvme/pci: Fix stuck nvme resetKeith Busch
The controller state is set to resetting prior to disabling the controller, so this patch accounts for that state when deciding if it needs to freeze the queues. Without this, an 'nvme reset /dev/nvme0' blocks forever because the queues were never frozen. Fixes: 82b057caefaf ("nvme-pci: fix multiple ctrl removal scheduling") Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-06-27libnvdimm, pmem: fix persistence warningDan Williams
The pmem driver assumes if platform firmware describes the memory devices associated with a persistent memory range and CONFIG_ARCH_HAS_PMEM_API=y that it has all the mechanism necessary to flush data to a power-fail safe zone. We warn if the firmware does not describe memory devices, but we also need to warn if the architecture does not claim pmem support. Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27x86, libnvdimm, pmem: remove global pmem apiDan Williams
Now that all callers of the pmem api have been converted to dax helpers that call back to the pmem driver, we can remove include/linux/pmem.h and asm/pmem.h. Cc: <x86@kernel.org> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Toshi Kani <toshi.kani@hpe.com> Cc: Oliver O'Halloran <oohall@gmail.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27x86, libnvdimm, pmem: move arch_invalidate_pmem() to libnvdimmDan Williams
Kill this globally defined wrapper and move to libnvdimm so that we can ultimately remove include/linux/pmem.h and asm/pmem.h. Cc: <x86@kernel.org> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27switchtec: Add device IDs for additional Switchtec productsLogan Gunthorpe
The switchtec driver also supports the PAX, PFXL and PFXI products which have the same management interface. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
2017-06-27switchtec: Add "running" status flag to fw partition info ioctlLogan Gunthorpe
This flag lets userspace know which firmware partitions are currently in use as opposed to just active. "Active" means they will be in use for the next reboot, whereas "running" means they are currently in use. If an old kernel is in use, or the firmware doesn't support these fields, the new flag will not be set in the output. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
2017-06-27remoteproc/keystone: Fix circular dependencies for ARM configsSuman Anna
Drop the dependency on RESET_CONTROLLER for the Keystone remoteproc driver to resolve some circular dependencies around different choices for RESET_CONTROLLER on common ARM configs. This dependency is inherent as the RESET_CONTROLLER will be enabled due to the enabled ARCH_HAS_RESET_CONTROLLER for ARCH_KEYSTONE. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27remoteproc: Drop redundant REMOTEPROC dependency from driver KconfigsSuman Anna
All the remoteproc platform driver Kconfig symbols are defined and included under an if REMOTEPROC condition, so the dependency on REMOTEPROC is implicit and they do not need an explicit 'depends on REMOTEPROC' line. So, clean these up. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27remoteproc: Drop VIRTUALIZATION dependency from REMOTEPROCSuman Anna
A dependency to VIRTUALIZATION has been added to REMOTEPROC in v3.10 kernel in commit b9777859ec01 ("remoteproc: fix kconfig dependencies for VIRTIO") to resolve Kconfig warnings due to the inclusion of the virtio configuration file from the ARM's KVM config file. The KVM config was fixed properly in the subsequent release in commit 8bd4ffd6b3a9 ("ARM: kvm: don't include drivers/virtio/Kconfig"). So, drop this unneeded VIRTUALIZATION dependency from REMOTEPROC. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27rpmsg: Drop VIRTUALIZATION dependency from RPMSG_VIRTIOSuman Anna
A dependency to VIRTUALIZATION has been added to RPMSG_VIRTIO (back when it was named RPMSG) in v3.10 kernel in commit 397944df3290 ("rpmsg: fix kconfig dependencies for VIRTIO") to resolve Kconfig warnings due to the inclusion of the virtio configuration file from the ARM's KVM config file. The KVM config was fixed properly in the subsequent release in commit 8bd4ffd6b3a9 ("ARM: kvm: don't include drivers/virtio/Kconfig"). So, drop this unneeded VIRTUALIZATION dependency from RPMSG_VIRTIO. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-28PM / QoS: constify *_attribute_group.Arvind Yadav
File size before: text data bss dec hex filename 3890 1152 8 5050 13ba drivers/base/power/sysfs.o File size After adding 'const': text data bss dec hex filename 4250 800 8 5058 13c2 drivers/base/power/sysfs.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28PM / AVS: rockchip-io: add io selectors and supplies for rk3228David Wu
This adds the necessary data for handling io voltage domains on the rk3228. Signed-off-by: David Wu <david.wu@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28powercap/RAPL: prevent overridding bits outside of the maskAdam Lessnau
Fixes wrong bits shift operation in the rapl_write_data_raw function, which might cause overridding bits outside of the mask. For example, writing new TIME_WINDOW1 value can override POWER_LIMIT1. Signed-off-by: Adam Lessnau <adam.lessnau@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28PM / sysfs: Constify attribute groupsKrzysztof Kozlowski
Local instances of struct attribute_group are not modified so they can be made const to increase code safeness. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28PM: Constify info string used in messagesKrzysztof Kozlowski
The 'info' string appearing in many places points to a .rodata string so it should be passes as pointer to const. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28PM: Constify returned PM event nameKrzysztof Kozlowski
The pm_verb() returns a pointer to string from .rodata so it should be marked as const. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28PM / Domains: Constify genpd pointerKrzysztof Kozlowski
Mark pointer to struct generic_pm_domain const (either passed in argument or used localy in a function), whenever it is not modifed by the function itself. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27i2c: designware: enable SLAVE in platform moduleLuis Oliveira
- Slave mode selected in platform module if the support is detected in the DT. Signed-off-by: Luis Oliveira <lolivei@synopsys.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-27i2c: designware: add SLAVE mode functionsLuis Oliveira
- Changes in Kconfig to enable I2C_DESIGNWARE_SLAVE support - Slave functions added to core library file - Slave abort sources added to common source file - New driver: i2c-designware-slave added - Changes in the Makefile to compile the I2C_DESIGNWARE_SLAVE module when supported by the architecture. All the SLAVE flow is added but it is not enabled via platform driver. Signed-off-by: Luis Oliveira <lolivei@synopsys.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> [wsa: made a function static and one-lined a message] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-27i2c: zx2967: drop COMPILE_TEST dependencyShawn Guo
0-DAY kernel test reports the following build issue on IA64 architecture with allmodconfig. drivers/i2c/busses/i2c-zx2967.c: In function 'zx2967_i2c_writesb': >> drivers/i2c/busses/i2c-zx2967.c:87:2: error: implicit declaration of function 'writesb' [-Werror=implicit-function-declaration] writesb(i2c->reg_base + reg, data, len); ^~~~~~~ drivers/i2c/busses/i2c-zx2967.c: In function 'zx2967_i2c_readsb': >> drivers/i2c/busses/i2c-zx2967.c:93:2: error: implicit declaration of function 'readsb' [-Werror=implicit-function-declaration] readsb(i2c->reg_base + reg, data, len); ^~~~~~ cc1: some warnings being treated as errors It's caused by that writesb/readsb are unavailable on IA64 architecture. Let's drop COMPILE_TEST dependency to avoid the build issue. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>