summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2020-09-09i2c: algo: pca: Reapply i2c bus settings after resetEvan Nimmo
If something goes wrong (such as the SCL being stuck low) then we need to reset the PCA chip. The issue with this is that on reset we lose all config settings and the chip ends up in a disabled state which results in a lock up/high CPU usage. We need to re-apply any configuration that had previously been set and re-enable the chip. Signed-off-by: Evan Nimmo <evan.nimmo@alliedtelesis.co.nz> Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-09Merge tag 'at24-fixes-for-v5.9-rc5' of ↵Wolfram Sang
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current at24 fixes for v5.9-rc5 - delay registration of the nvmem provider until after power is enabled
2020-09-09soundwire: qcom: fix SLIBMUS/SLIMBUS typoJonathan Marek
Fix slimbus case being broken thanks to a typo. Fixes: 5bd773242f75 ("soundwire: qcom: avoid dependency on CONFIG_SLIMBUS") Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200908140818.28373-1-jonathan@marek.ca Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-09soundwire: cadence: fix race condition between suspend and Slave device alertsPierre-Louis Bossart
In system suspend stress cases, the SOF CI reports timeouts. The root cause is that an alert is generated while the system suspends. The interrupt handling generates transactions on the bus that will never be handled because the interrupts are disabled in parallel. As a result, the transaction never completes and times out on resume. This error doesn't seem too problematic since it happens in a work queue, and the system recovers without issues. Nevertheless, this race condition should not happen. When doing a system suspend, or when disabling interrupts, we should make sure the current transaction can complete, and prevent new work from being queued. BugLink: https://github.com/thesofproject/linux/issues/2344 Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Acked-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20200817222340.18042-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-09nvme-fabrics: allow to queue requests for live queuesSagi Grimberg
Right now we are failing requests based on the controller state (which is checked inline in nvmf_check_ready) however we should definitely accept requests if the queue is live. When entering controller reset, we transition the controller into NVME_CTRL_RESETTING, and then return BLK_STS_RESOURCE for non-mpath requests (have blk_noretry_request set). This is also the case for NVME_REQ_USER for the wrong reason. There shouldn't be any reason for us to reject this I/O in a controller reset. We do want to prevent passthru commands on the admin queue because we need the controller to fully initialize first before we let user passthru admin commands to be issued. In a non-mpath setup, this means that the requests will simply be requeued over and over forever not allowing the q_usage_counter to drop its final reference, causing controller reset to hang if running concurrently with heavy I/O. Fixes: 35897b920c8a ("nvme-fabrics: fix and refine state checks in __nvmf_check_ready") Reviewed-by: James Smart <james.smart@broadcom.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-08f2fs: Return EOF on unaligned end of file DIO readGabriel Krisman Bertazi
Reading past end of file returns EOF for aligned reads but -EINVAL for unaligned reads on f2fs. While documentation is not strict about this corner case, most filesystem returns EOF on this case, like iomap filesystems. This patch consolidates the behavior for f2fs, by making it return EOF(0). it can be verified by a read loop on a file that does a partial read before EOF (A file that doesn't end at an aligned address). The following code fails on an unaligned file on f2fs, but not on btrfs, ext4, and xfs. while (done < total) { ssize_t delta = pread(fd, buf + done, total - done, off + done); if (!delta) break; ... } It is arguable whether filesystems should actually return EOF or -EINVAL, but since iomap filesystems support it, and so does the original DIO code, it seems reasonable to consolidate on that. Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-09-08f2fs: fix indefinite loop scanning for free nidSahitya Tummala
If the sbi->ckpt->next_free_nid is not NAT block aligned and if there are free nids in that NAT block between the start of the block and next_free_nid, then those free nids will not be scanned in scan_nat_page(). This results into mismatch between nm_i->available_nids and the sum of nm_i->free_nid_count of all NAT blocks scanned. And nm_i->available_nids will always be greater than the sum of free nids in all the blocks. Under this condition, if we use all the currently scanned free nids, then it will loop forever in f2fs_alloc_nid() as nm_i->available_nids is still not zero but nm_i->free_nid_count of that partially scanned NAT block is zero. Fix this to align the nm_i->next_scan_nid to the first nid of the corresponding NAT block. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-09-08f2fs: Fix type of section block count variablesShin'ichiro Kawasaki
Commit da52f8ade40b ("f2fs: get the right gc victim section when section has several segments") added code to count blocks of each section using variables with type 'unsigned short', which has 2 bytes size in many systems. However, the counts can be larger than the 2 bytes range and type conversion results in wrong values. Especially when the f2fs sections have blocks as many as USHRT_MAX + 1, the count is handled as 0. This triggers eternal loop in init_dirty_segmap() at mount system call. Fix this by changing the type of the variables to block_t. Fixes: da52f8ade40b ("f2fs: get the right gc victim section when section has several segments") Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-09-09Merge tag 'drm-xlnx-dpsub-fixes-20200905' of ↵Dave Airlie
git://linuxtv.org/pinchartl/media into drm-fixes Kconfig fixes for DRM_ZYNQMP_DPSUB DMA engine dependency Signed-off-by: Dave Airlie <airlied@redhat.com> From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200905172751.GC6319@pendragon.ideasonboard.com
2020-09-08block: only call sched requeue_request() for scheduled requestsOmar Sandoval
Yang Yang reported the following crash caused by requeueing a flush request in Kyber: [ 2.517297] Unable to handle kernel paging request at virtual address ffffffd8071c0b00 ... [ 2.517468] pc : clear_bit+0x18/0x2c [ 2.517502] lr : sbitmap_queue_clear+0x40/0x228 [ 2.517503] sp : ffffff800832bc60 pstate : 00c00145 ... [ 2.517599] Process ksoftirqd/5 (pid: 51, stack limit = 0xffffff8008328000) [ 2.517602] Call trace: [ 2.517606] clear_bit+0x18/0x2c [ 2.517619] kyber_finish_request+0x74/0x80 [ 2.517627] blk_mq_requeue_request+0x3c/0xc0 [ 2.517637] __scsi_queue_insert+0x11c/0x148 [ 2.517640] scsi_softirq_done+0x114/0x130 [ 2.517643] blk_done_softirq+0x7c/0xb0 [ 2.517651] __do_softirq+0x208/0x3bc [ 2.517657] run_ksoftirqd+0x34/0x60 [ 2.517663] smpboot_thread_fn+0x1c4/0x2c0 [ 2.517667] kthread+0x110/0x120 [ 2.517669] ret_from_fork+0x10/0x18 This happens because Kyber doesn't track flush requests, so kyber_finish_request() reads a garbage domain token. Only call the scheduler's requeue_request() hook if RQF_ELVPRIV is set (like we do for the finish_request() hook in blk_mq_free_request()). Now that we're handling it in blk-mq, also remove the check from BFQ. Reported-by: Yang Yang <yang.yang@vivo.com> Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-08Merge tag 'linux-kselftest-5.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fix from Shuah Khan: "A single fix to timers test to disable timeout setting for tests to run and report accurate results" * tag 'linux-kselftest-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/timers: Turn off timeout setting
2020-09-08Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Eleven fixes, mostly in drivers or minor fixes in driver related infrastructure libraries (target, libfc and libsas). Most of the bugs fixed only show up under rare circumstances, the exception being the endianness problem in qla2xxx which is used as a device on some sparc systems" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: mpt3sas: Don't call disable_irq from IRQ poll handler scsi: megaraid_sas: Don't call disable_irq from process IRQ poll scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA scsi: target: iscsi: Fix data digest calculation scsi: lpfc: Update lpfc version to 12.8.0.4 scsi: lpfc: Extend the RDF FPIN Registration descriptor for additional events scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery scsi: lpfc: Fix setting IRQ affinity with an empty CPU mask scsi: qla2xxx: Fix regression on sparc64 scsi: libfc: Fix for double free() scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort
2020-09-08seccomp: don't leave dangling ->notif if file allocation failsTycho Andersen
Christian and Kees both pointed out that this is a bit sloppy to open-code both places, and Christian points out that we leave a dangling pointer to ->notif if file allocation fails. Since we check ->notif for null in order to determine if it's ok to install a filter, this means people won't be able to install a filter if the file allocation fails for some reason, even if they subsequently should be able to. To fix this, let's hoist this free+null into its own little helper and use it. Reported-by: Kees Cook <keescook@chromium.org> Reported-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Tycho Andersen <tycho@tycho.pizza> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/r/20200902140953.1201956-1-tycho@tycho.pizza Signed-off-by: Kees Cook <keescook@chromium.org>
2020-09-08mailmap, MAINTAINERS: move to tycho.pizzaTycho Andersen
I've changed my e-mail address to tycho.pizza, so let's reflect that in these files. Signed-off-by: Tycho Andersen <tycho@tycho.pizza> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/r/20200902014017.934315-2-tycho@tycho.pizza Signed-off-by: Kees Cook <keescook@chromium.org>
2020-09-08seccomp: don't leak memory when filter install racesTycho Andersen
In seccomp_set_mode_filter() with TSYNC | NEW_LISTENER, we first initialize the listener fd, then check to see if we can actually use it later in seccomp_may_assign_mode(), which can fail if anyone else in our thread group has installed a filter and caused some divergence. If we can't, we partially clean up the newly allocated file: we put the fd, put the file, but don't actually clean up the *memory* that was allocated at filter->notif. Let's clean that up too. To accomplish this, let's hoist the actual "detach a notifier from a filter" code to its own helper out of seccomp_notify_release(), so that in case anyone adds stuff to init_listener(), they only have to add the cleanup code in one spot. This does a bit of extra locking and such on the failure path when the filter is not attached, but it's a slow failure path anyway. Fixes: 51891498f2da ("seccomp: allow TSYNC and USER_NOTIF together") Reported-by: syzbot+3ad9614a12f80994c32e@syzkaller.appspotmail.com Signed-off-by: Tycho Andersen <tycho@tycho.pizza> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/r/20200902014017.934315-1-tycho@tycho.pizza Signed-off-by: Kees Cook <keescook@chromium.org>
2020-09-08Merge tag 'drm-fixes-2020-09-08' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "The i915 reverts are going to be a bit of a conflict mess for next, so I decided to dequeue them now, along with some msm fixes for a ring corruption issue, that Rob sent over the weekend. Summary: i915: - revert gpu relocation changes due to regression msm: - fixes for RPTR corruption issue" * tag 'drm-fixes-2020-09-08' of git://anongit.freedesktop.org/drm/drm: Revert "drm/i915/gem: Delete unused code" Revert "drm/i915/gem: Async GPU relocations only" Revert "drm/i915: Remove i915_gem_object_get_dirty_page()" drm/msm: Disable the RPTR shadow drm/msm: Disable preemption on all 5xx targets drm/msm: Enable expanded apriv support for a650 drm/msm: Split the a5xx preemption record
2020-09-08Merge tag 'livepatching-for-5.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching fix from Petr Mladek: "Workaround for 'unreachable instruction' objtool warnings that happen with some compiler versions" * tag 'livepatching-for-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: Revert "kbuild: use -flive-patching when CONFIG_LIVEPATCH is enabled"
2020-09-08nvme-tcp: cancel async events before freeing event structDavid Milburn
Cancel async event work in case async event has been queued up, and nvme_tcp_submit_async_event() runs after event has been freed. Signed-off-by: David Milburn <dmilburn@redhat.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-08nvme-rdma: cancel async events before freeing event structDavid Milburn
Cancel async event work in case async event has been queued up, and nvme_rdma_submit_async_event() runs after event has been freed. Signed-off-by: David Milburn <dmilburn@redhat.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-08nvme-fc: cancel async events before freeing event structDavid Milburn
Cancel async event work in case async event has been queued up, and nvme_fc_submit_async_event() runs after event has been freed. Signed-off-by: David Milburn <dmilburn@redhat.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-08nvme: Revert: Fix controller creation races with teardown flowJames Smart
The indicated patch introduced a barrier in the sysfs_delete attribute for the controller that rejects the request if the controller isn't created. "Created" is defined as at least 1 call to nvme_start_ctrl(). This is problematic in error-injection testing. If an error occurs on the initial attempt to create an association and the controller enters reconnect(s) attempts, the admin cannot delete the controller until either there is a successful association created or ctrl_loss_tmo times out. Where this issue is particularly hurtful is when the "admin" is the nvme-cli, it is performing a connection to a discovery controller, and it is initiated via auto-connect scripts. With the FC transport, if the first connection attempt fails, the controller enters a normal reconnect state but returns control to the cli thread that created the controller. In this scenario, the cli attempts to read the discovery log via ioctl, which fails, causing the cli to see it as an empty log and then proceeds to delete the discovery controller. The delete is rejected and the controller is left live. If the discovery controller reconnect then succeeds, there is no action to delete it, and it sits live doing nothing. Cc: <stable@vger.kernel.org> # v5.7+ Fixes: ce1518139e69 ("nvme: Fix controller creation races with teardown flow") Signed-off-by: James Smart <james.smart@broadcom.com> CC: Israel Rukshin <israelr@mellanox.com> CC: Max Gurtovoy <maxg@mellanox.com> CC: Christoph Hellwig <hch@lst.de> CC: Keith Busch <kbusch@kernel.org> CC: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-08Merge tag 'usb-serial-5.9-rc5' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for 5.9-rc5 Here are some new device ids for 5.9. All have been in linux-next with no reported issues. * tag 'usb-serial-5.9-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: option: support dynamic Quectel USB compositions USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter
2020-09-08spi: spi-cadence-quadspi: Fix mapping of buffers for DMA readsVignesh Raghavendra
Buffers need to mapped to DMA channel's device pointer instead of SPI controller's device pointer as its system DMA that actually does data transfer. Data inconsistencies have been reported when reading from flash without this fix. Fixes: ffa639e069fb ("mtd: spi-nor: cadence-quadspi: Add DMA support for direct mode reads") Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Tested-by: Jan Kiszka <jan.kiszka@siemens.com> Link: https://lore.kernel.org/r/20200831130720.4524-1-vigneshr@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-08block: restore a specific error code in bdev_del_partitionChristoph Hellwig
mdadm relies on the fact that deleting an invalid partition returns -ENXIO or -ENOTTY to detect if a block device is a partition or a whole device. Fixes: 08fc1ab6d748 ("block: fix locking in bdev_del_partition") Reported-by: kernel test robot <rong.a.chen@intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-08interconnect: qcom: Add EPSS L3 support on SM8250Sibi Sankar
Add Epoch Subsystem (EPSS) L3 interconnect provider support on SM8250 SoCs. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200801123049.32398-6-sibis@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add EPSS L3 DT binding on SM8250Sibi Sankar
Add Epoch Subsystem (EPSS) L3 interconnect provider binding on SM8250 SoCs. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200801123049.32398-5-sibis@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Lay the groundwork for adding EPSS supportSibi Sankar
Lay the groundwork for adding Epoch Subsystem (EPSS) L3 support on SM8250. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200801123049.32398-4-sibis@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Add OSM L3 support on SM8150Sibi Sankar
Add Operation State Manager (OSM) L3 interconnect provider support on SM8150 SoCs. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200801123049.32398-3-sibis@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add OSM L3 DT binding on SM8150Sibi Sankar
Add Operation State Manager (OSM) L3 interconnect provider binding on SM8150 SoCs. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200801123049.32398-2-sibis@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: sc7180: Replace xlate with xlate_extendedSibi Sankar
Use the qcom_icc_xlate_extended() in order to parse tags, that are specified as an additional arguments to the path endpoints in DT. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20200903133134.17201-7-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: sdm845: Replace xlate with xlate_extendedGeorgi Djakov
Use the qcom_icc_xlate_extended() in order to parse tags, that are specified as an additional arguments to the path endpoints in DT. Tested-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20200903133134.17201-5-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Implement xlate_extended() to parse tagsGeorgi Djakov
Implement a function to parse the arguments of the "interconnects" DT property and populate the interconnect path tags if this information is available. Tested-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200903133134.17201-4-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Document the support of optional path tagGeorgi Djakov
Let's document that we now support specifying path tag information in the arg cells of the 'interconnects' DT property. This information would be populated when the xlate_extended() callback is used. Specifying the tag in DT will allow the interconnect framework to do the aggregation based on the tag automatically. The users can still use the icc_set_tag() API if/when needed. Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200903133134.17201-3-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: Introduce xlate_extended() callbackGeorgi Djakov
Currently there is the xlate() callback, which is used by providers for mapping the nodes from phandle arguments. That's fine for simple mappings, but the phandle arguments could contain an additional data, such as tag information. Let's create another callback xlate_extended() for the cases where providers want also populate the path tag data. Tested-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20200903133134.17201-2-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Add support for per-BCM scaling factorsMike Tipton
Currently, bcm-voter always assumes requests are made in KBps and that BCM HW always wants them in Bps, so it always scales the requests by 1000. However, certain use cases and BCMs may use different units. Thus, add support for BCM-specific scaling factors. Signed-off-by: Mike Tipton <mdtipton@codeaurora.org> Link: https://lore.kernel.org/r/20200903192149.30385-7-mdtipton@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Only wait for completion in AMC/WAKE by defaultMike Tipton
Change the default TCS wait behavior to only wait for completion in AMC and WAKE. Waiting isn't necessary in the SLEEP TCS, since votes are only being removed in this case. Resources can be safely disabled asynchronously in parallel with the rest of the power collapse sequence. This reduces the sleep entry latency. Signed-off-by: Mike Tipton <mdtipton@codeaurora.org> Link: https://lore.kernel.org/r/20200903192149.30385-6-mdtipton@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Support bcm-voter-specific TCS wait behaviorMike Tipton
Currently, all bcm-voters set tcs_cmd::wait=true for the last VCD command in each TCS (AMC, WAKE, and SLEEP). However, some bcm-voters don't need the completion and instead need to optimize for latency. For instance, disabling wait-for-completion in the WAKE set can decrease resume latency and allow for certain operations to occur in parallel with the WAKE TCS triggering. This is only safe in very specific situations. Keep the default behavior of always waiting, but allow it to be overridden in devicetree. Signed-off-by: Mike Tipton <mdtipton@codeaurora.org> Link: https://lore.kernel.org/r/20200903192149.30385-5-mdtipton@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add property to set BCM TCS wait behaviorMike Tipton
Add "qcom,tcs-wait" property to set which TCS should wait for completion when triggering. Signed-off-by: Mike Tipton <mdtipton@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200903192149.30385-4-mdtipton@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add generic qcom bindingsMike Tipton
Add generic qcom interconnect bindings that are common across platforms. In particular, these include QCOM_ICC_TAG_* macros that clients can use when calling icc_set_tag(). Signed-off-by: Mike Tipton <mdtipton@codeaurora.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200903192149.30385-3-mdtipton@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Add SM8250 interconnect provider driverJonathan Marek
Add driver for the Qualcomm interconnect buses found in SM8250 based platforms. The topology consists of several NoCs that are controlled by a remote processor that collects the aggregated bandwidth for each master-slave pairs. Based on SC7180 driver and generated from downstream dts. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200728023811.5607-6-jonathan@marek.ca Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: qcom: Add SM8150 interconnect provider driverJonathan Marek
Add driver for the Qualcomm interconnect buses found in SM8150 based platforms. The topology consists of several NoCs that are controlled by a remote processor that collects the aggregated bandwidth for each master-slave pairs. Based on SC7180 driver and generated from downstream dts. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200728023811.5607-5-jonathan@marek.ca Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add Qualcomm SM8250 DT bindingsJonathan Marek
The Qualcomm SM8250 platform has several bus fabrics that could be controlled and tuned dynamically according to the bandwidth demand. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200728023811.5607-4-jonathan@marek.ca Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add Qualcomm SM8150 DT bindingsJonathan Marek
The Qualcomm SM8150 platform has several bus fabrics that could be controlled and tuned dynamically according to the bandwidth demand. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200728023811.5607-3-jonathan@marek.ca Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: single yaml file for RPMh interconnect driversJonathan Marek
These two bindings are almost identical, so combine them into one. This will make it easier to add the sm8150 and sm8250 interconnect bindings. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200728023811.5607-2-jonathan@marek.ca Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: Add bulk API helpersGeorgi Djakov
There are drivers which just need to get multiple interconnect paths, request some predefined amounts of bandwidth and then just toggle the paths between enabled/disabled state. The aim of this patch is simplify the above and to allow drivers to put all the path names and bandwidth data into a single static icc_bulk_data table and call the icc_bulk_* functions on that table in order to scale all the interconnect paths in parallel. Suggested-by: Evan Green <evgreen@chromium.org> Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200729123439.9961-1-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08drm/i915: fix regression leading to display audio probe failure on GLKKai Vehmanen
In commit 4f0b4352bd26 ("drm/i915: Extract cdclk requirements checking to separate function") the order of force_min_cdclk_changed check and intel_modeset_checks(), was reversed. This broke the mechanism to immediately force a new CDCLK minimum, and lead to driver probe errors for display audio on GLK platform with 5.9-rc1 kernel. Fix the issue by moving intel_modeset_checks() call later. [vsyrjala: It also broke the ability of planes to bump up the cdclk and thus could lead to underruns when eg. flipping from 32bpp to 64bpp framebuffer. To be clear, we still compute the new cdclk correctly but fail to actually program it to the hardware due to intel_set_cdclk_{pre,post}_plane_update() not getting called on account of state->modeset==false.] Fixes: 4f0b4352bd26 ("drm/i915: Extract cdclk requirements checking to separate function") BugLink: https://github.com/thesofproject/linux/issues/2410 Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200901151036.1312357-1-kai.vehmanen@linux.intel.com (cherry picked from commit cf696856bc54a31f78e6538b84c8f7a006b6108b) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-09-08i2c: npcm7xx: Fix timeout calculationTali Perry
timeout_usec value calculation was wrong, the calculated value was in msec instead of usec. Fixes: 56a1485b102e ("i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver") Signed-off-by: Tali Perry <tali.perry1@gmail.com> Reviewed-by: Avi Fishman <avifishman70@gmail.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Alex Qiu <xqiu@google.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-08Revert "drm/i915/gem: Delete unused code"Dave Airlie
These commits caused a regression on Lenovo t520 sandybridge machine belonging to reporter. We are reverting them for 5.10 for other reasons, so just do it for 5.9 as well. This reverts commit 7ac2d2536dfa71c275a74813345779b1e7522c91. Reported-by: Harald Arnesen <harald@skogtun.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-09-08Revert "drm/i915/gem: Async GPU relocations only"Dave Airlie
These commits caused a regression on Lenovo t520 sandybridge machine belonging to reporter. We are reverting them for 5.10 for other reasons, so just do it for 5.9 as well. This reverts commit 9e0f9464e2ab36b864359a59b0e9058fdef0ce47. Reported-by: Harald Arnesen <harald@skogtun.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-09-08Revert "drm/i915: Remove i915_gem_object_get_dirty_page()"Dave Airlie
These commits caused a regression on Lenovo t520 sandybridge machine belonging to reporter. We are reverting them for 5.10 for other reasons, so just do it for 5.9 as well. This reverts commit 763fedd6a216f94c2eb98d2f7ca21be3d3806e69. Reported-by: Harald Arnesen <harald@skogtun.org> Signed-off-by: Dave Airlie <airied@redhat.com>