- 22 Sep, 2020 1 commit
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Andra Paraschiv authored
The Nitro Enclaves driver handles the enclave lifetime management. This includes enclave creation, termination and setting up its resources such as memory and CPU. An enclave runs alongside the VM that spawned it. It is abstracted as a process running in the VM that launched it. The process interacts with the NE driver, that exposes an ioctl interface for creating an enclave and setting up its resources. Changelog v9 -> v10 * Update commit message to include the changelog before the SoB tag(s). v8 -> v9 * No changes. v7 -> v8 * Add NE custom error codes for user space memory regions not backed by pages multiple of 2 MiB, invalid flags and enclave CID. * Add max flag value for enclave image load info. v6 -> v7 * Clarify in the ioctls documentation that the return value is -1 and errno is set on failure. * Update the error code value for NE_ERR_INVALID_MEM_REGION_SIZE as it gets in user space as value 25 (ENOTTY) instead of 515. Update the NE custom error codes values range to not be the same as the ones defined in include/linux/errno.h, although these are not propagated to user space. v5 -> v6 * Fix typo in the description about the NE CPU pool. * Update documentation to kernel-doc format. * Remove the ioctl to query API version. v4 -> v5 * Add more details about the ioctl calls usage e.g. error codes, file descriptors used. * Update the ioctl to set an enclave vCPU to not return a file descriptor. * Add specific NE error codes. v3 -> v4 * Decouple NE ioctl interface from KVM API. * Add NE API version and the corresponding ioctl call. * Add enclave / image load flags options. v2 -> v3 * Remove the GPL additional wording as SPDX-License-Identifier is already in place. v1 -> v2 * Add ioctl for getting enclave image load metadata. * Update NE_ENCLAVE_START ioctl name to NE_START_ENCLAVE. * Add entry in Documentation/userspace-api/ioctl/ioctl-number.rst for NE ioctls. * Update NE ioctls definition based on the updated ioctl range for major and minor. Reviewed-by:
Alexander Graf <graf@amazon.com> Reviewed-by:
Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by:
Alexandru Vasile <lexnv@amazon.com> Signed-off-by:
Andra Paraschiv <andraprs@amazon.com> Link: https://lore.kernel.org/r/20200921121732.44291-2-andraprs@amazon.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 17 Sep, 2020 23 commits
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Lang Dai authored
uio_register_device() do two things. 1) get an uio id from a global pool, e.g. the id is <A> 2) create file nodes like /sys/class/uio/uio<A> uio_unregister_device() do two things. 1) free the uio id <A> and return it to the global pool 2) free the file node /sys/class/uio/uio<A> There is a situation is that one worker is calling uio_unregister_device(), and another worker is calling uio_register_device(). If the two workers are X and Y, they go as below sequence, 1) X free the uio id <AAA> 2) Y get an uio id <AAA> 3) Y create file node /sys/class/uio/uio<AAA> 4) X free the file note /sys/class/uio/uio<AAA> Then it will failed at the 3rd step and cause the phenomenon we saw as it is creating a duplicated file node. Failure reports as follows: sysfs: cannot create duplicate filename '/class/uio/uio10' Call Trace: sysfs_do_create_link_sd.isra.2+0x9e/0xb0 sysfs_create_link+0x25/0x40 device_add+0x2c4/0x640 __uio_register_device+0x1c5/0x576 [uio] adf_uio_init_bundle_dev+0x231/0x280 [intel_qat] adf_uio_register+0x1c0/0x340 [intel_qat] adf_dev_start+0x202/0x370 [intel_qat] adf_dev_start_async+0x40/0xa0 [intel_qat] process_one_work+0x14d/0x410 worker_thread+0x4b/0x460 kthread+0x105/0x140 ? process_one_work+0x410/0x410 ? kthread_bind+0x40/0x40 ret_from_fork+0x1f/0x40 Code: 85 c0 48 89 c3 74 12 b9 00 10 00 00 48 89 c2 31 f6 4c 89 ef e8 ec c4 ff ff 4c 89 e2 48 89 de 48 c7 c7 e8 b4 ee b4 e8 6a d4 d7 ff <0f> 0b 48 89 df e8 20 fa f3 ff 5b 41 5c 41 5d 5d c3 66 0f 1f 84 ---[ end trace a7531c1ed5269e84 ]--- c6xxvf b002:00:00.0: Failed to register UIO devices c6xxvf b002:00:00.0: Failed to register UIO devices Signed-off-by:
Lang Dai <lang.dai@intel.com> Link: https://lore.kernel.org/r/1600054002-17722-1-git-send-email-lang.dai@intel.comSigned-off-by:
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Vadym Kochan authored
of_parse_phandle() returns device_node with incremented ref count which needs to be decremented by of_node_put() when device_node is not used. Fixes: e2a5402e ("nvmem: Add nvmem_device based consumer apis.") Signed-off-by:
Vadym Kochan <vadym.kochan@plvision.eu> Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20200917134437.16637-5-srinivas.kandagatla@linaro.orgSigned-off-by:
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Bartosz Golaszewski authored
We don't need to specify any ranges when allocating IDs so we can switch to ida_alloc() and ida_free() instead of the ida_simple_ counterparts. ida_simple_get(ida, 0, 0, gfp) is equivalent to ida_alloc_range(ida, 0, UINT_MAX, gfp) which is equivalent to ida_alloc(ida, gfp). Note: IDR will never actually allocate an ID larger than INT_MAX. Signed-off-by:
Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by:
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Tian Tao authored
Use kobj_to_dev() instead of container_of() Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Signed-off-by:
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Chih-En Hsu authored
This patch is to remove function "mtk_reg_write" since Mediatek EFUSE hardware only supports read functionality for NVMEM consumers. Fixes: ba360fd0 ("nvmem: mtk-efuse: remove nvmem regmap dependency") Acked-by:
Andrew-CT Chen <andrew-ct.chen@mediatek.com> Signed-off-by:
Chih-En Hsu <chih-en.hsu@mediatek.com> Signed-off-by:
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Vadym Kochan authored
Set type as NVMEM_TYPE_EEPROM to expose this info via sysfs: $ cat /sys/bus/nvmem/devices/{DEVICE}/type EEPROM Signed-off-by: -
Vadym Kochan authored
Set type as NVMEM_TYPE_EEPROM to expose this info via sysfs: $ cat /sys/bus/nvmem/devices/{DEVICE}/type EEPROM Signed-off-by: -
Mike Leach authored
The initialisation code checks TRCIDR4 to determine the number of resource selectors available on the system. Since ETM v 4.3, the value 0 has a different meaning. This patch takes into account this change. Signed-off-by:
Mike Leach <mike.leach@linaro.org> [Removed '.' in patch title, added stable] Signed-off-by:
Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20200916191737.4001561-17-mathieu.poirier@linaro.orgSigned-off-by:
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Jonathan Zhou authored
The member @nr_resource represents how many resource selector pairs, and the pair 0 is always implemented and reserved. So let's multiply by 2 when resetting the selector configuration. And also update the validation of the input @idx. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by:
Jonathan Zhou <jonathan.zhouwen@huawei.com> [Fixed typographical error in changelog, added stable] Signed-off-by:
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Linu Cherian authored
Coresight driver assumes sink is common across all the ETMs, and tries to build a path between ETM and the first enabled sink found using bus based search. This breaks sysFS usage on implementations that has multiple per core sinks in enabled state. To fix this, coresight_get_enabled_sink API is updated to do a connection based search starting from the given source, instead of bus based search. With sink selection using sysfs depecrated for perf interface, provision for reset is removed as well in this API. Signed-off-by:
Linu Cherian <lcherian@marvell.com> [Fixed indentation problem and removed obsolete comment] Signed-off-by:
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Linu Cherian authored
When using the perf interface, sink selection using sysfs is deprecated. Signed-off-by:
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Mathieu Poirier authored
Add CoreSight mailing list so that people can participate in patch reviews and know what features are coming next. Signed-off-by:
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Jonathan Zhou authored
The TRCSEQEVR(3) is reserved, using '@nrseqstate - 1' instead to avoid accessing the reserved register. Fixes: f188b5e7 ("coresight: etm4x: Save/restore state across CPU low power states") Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by:
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Suzuki K Poulose authored
If the specified/hinted sink is not reachable from a subset of the CPUs, we could end up unable to trace the event on those CPUs. This is the best effort we could do until we support 1:1 configurations. Fail gracefully in such cases avoiding a WARN_ON, which can be easily triggered by the user on certain platforms (Arm N1SDP), with the following trace paths : CPU0 \ -- Funnel0 --> ETF0 --> / \ CPU1 \ MainFunnel CPU2 / \ / -- Funnel1 --> ETF1 --> / CPU1 $ perf record --per-thread -e cs_etm/@ETF0/u -- <app> could trigger the following WARNING, when the event is scheduled on CPU2. [10919.513250] ------------[ cut here ]------------ [10919.517861] WARNING: CPU: 2 PID: 24021 at drivers/hwtracing/coresight/coresight-etm-perf.c:316 etm_event_start+0xf8/0x100 ... [10919.564403] CPU: 2 PID: 24021 Comm: perf Not tainted 5.8.0+ #24 [10919.570308] pstate: 80400089 (Nzcv daIf +PAN -UAO BTYPE=--) [10919.575865] pc : etm_event_start+0xf8/0x100 [10919.580034] lr : etm_event_start+0x80/0x100 [10919.584202] sp : fffffe001932f940 [10919.587502] x29: fffffe001932f940 x28: fffffc834995f800 [10919.592799] x27: 0000000000000000 x26: fffffe0011f3ced0 [10919.598095] x25: fffffc837fce244c x24: fffffc837fce2448 [10919.603391] x23: 0000000000000002 x22: fffffc8353529c00 [10919.608688] x21: fffffc835bb31000 x20: 0000000000000000 [10919.613984] x19: fffffc837fcdcc70 x18: 0000000000000000 [10919.619281] x17: 0000000000000000 x16: 0000000000000000 [10919.624577] x15: 0000000000000000 x14: 00000000000009f8 [10919.629874] x13: 00000000000009f8 x12: 0000000000000018 [10919.635170] x11: 0000000000000000 x10: 0000000000000000 [10919.640467] x9 : fffffe00108cd168 x8 : 0000000000000000 [10919.645763] x7 : 0000000000000020 x6 : 0000000000000001 [10919.651059] x5 : 0000000000000002 x4 : 0000000000000001 [10919.656356] x3 : 0000000000000000 x2 : 0000000000000000 [10919.661652] x1 : fffffe836eb40000 x0 : 0000000000000000 [10919.666949] Call trace: [10919.669382] etm_event_start+0xf8/0x100 [10919.673203] etm_event_add+0x40/0x60 [10919.676765] event_sched_in.isra.134+0xcc/0x210 [10919.681281] merge_sched_in+0xb0/0x2a8 [10919.685017] visit_groups_merge.constprop.140+0x15c/0x4b8 [10919.690400] ctx_sched_in+0x15c/0x170 [10919.694048] perf_event_sched_in+0x6c/0xa0 [10919.698130] ctx_resched+0x60/0xa0 [10919.701517] perf_event_exec+0x288/0x2f0 [10919.705425] begin_new_exec+0x4c8/0xf58 [10919.709247] load_elf_binary+0x66c/0xf30 [10919.713155] exec_binprm+0x15c/0x450 [10919.716716] __do_execve_file+0x508/0x748 [10919.720711] __arm64_sys_execve+0x40/0x50 [10919.724707] do_el0_svc+0xf4/0x1b8 [10919.728095] el0_sync_handler+0xf8/0x124 [10919.732003] el0_sync+0x140/0x180 Even though we don't support using separate sinks for the ETMs yet (e.g, for 1:1 configurations), we should at least honor the user's choice and handle the limitations gracefully, by simply skipping the tracing on ETMs which can't reach the requested sink. Fixes: f9d81a65 ("coresight: perf: Allow tracing on hotplugged CPUs") Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Reported-by:Jeremy Linton <jeremy.linton@arm.com> Tested-by:
Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by:
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Tingwei Zhang authored
Deadlock as below is triggered by one CPU holds drvdata->spinlock and calls cti_enable_hw(). Smp_call_function_single() is called in cti_enable_hw() and tries to let another CPU write CTI registers. That CPU is trying to get drvdata->spinlock in cti_cpu_pm_notify() and doesn't response to IPI from smp_call_function_single(). [ 988.335937] CPU: 6 PID: 10258 Comm: sh Tainted: G W L 5.8.0-rc6-mainline-16783-gc38daa79b26b-dirty #1 [ 988.346364] Hardware name: Thundercomm Dragonboard 845c (DT) [ 988.352073] pstate: 20400005 (nzCv daif +PAN -UAO BTYPE=--) [ 988.357689] pc : smp_call_function_single+0x158/0x1b8 [ 988.362782] lr : smp_call_function_single+0x124/0x1b8 ... [ 988.451638] Call trace: [ 988.454119] smp_call_function_single+0x158/0x1b8 [ 988.458866] cti_enable+0xb4/0xf8 [coresight_cti] [ 988.463618] coresight_control_assoc_ectdev+0x6c/0x128 [coresight] [ 988.469855] coresight_enable+0x1f0/0x364 [coresight] [ 988.474957] enable_source_store+0x5c/0x9c [coresight] [ 988.480140] dev_attr_store+0x14/0x28 [ 988.483839] sysfs_kf_write+0x38/0x4c [ 988.487532] kernfs_fop_write+0x1c0/0x2b0 [ 988.491585] vfs_write+0xfc/0x300 [ 988.494931] ksys_write+0x78/0xe0 [ 988.498283] __arm64_sys_write+0x18/0x20 [ 988.502240] el0_svc_common+0x98/0x160 [ 988.506024] do_el0_svc+0x78/0x80 [ 988.509377] el0_sync_handler+0xd4/0x270 [ 988.513337] el0_sync+0x164/0x180 This change write CTI registers directly in cti_enable_hw(). Config->hw_powered has been checked to be true with spinlock holded. CTI is powered and can be programmed until spinlock is released. Fixes: 6a0953ce ("coresight: cti: Add CPU idle pm notifer to CTI devices") Signed-off-by:
Tingwei Zhang <tingwei@codeaurora.org> [Re-ordered variable declaration] Signed-off-by:
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Jonathan Zhou authored
The member @nr_addr_cmp is not a bool value, using operator '>' instead to avoid unexpected failure. Fixes: a77de263 ("coresight: etm4x: moving sysFS entries to a dedicated file") Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by:
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Mike Leach authored
Moving from using an address filter to trace the default "all addresses" range to no filtering to acheive the same result, has caused the perf filtering of kernel/user address spaces from not working unless an explicit address filter was used. This is due to the original code using a side-effect of the address filtering rather than setting the global TRCVICTLR exception level filtering. The use of the mode sysfs file is also similarly affected. A helper function is added to fix both instances. Fixes: ae204151 ("coresight: etmv4: Update default filter and initialisation") Reported-by:
Leo Yan <leo.yan@linaro.org> Tested-by:
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Tingwei Zhang authored
Below BUG is triggered by call pm_runtime_get_sync() in cti_cpuhp_enable_hw(). It's in CPU hotplug callback with interrupt disabled. Pm_runtime_get_sync() calls clock driver to enable clock which could sleep. Remove pm_runtime_get_sync() in cti_cpuhp_enable_hw() since pm_runtime_get_sync() is called in cti_enabld and pm_runtime_put() is called in cti_disabled. No need to increase pm count when CPU gets online since it's not decreased when CPU is offline. [ 105.800279] BUG: scheduling while atomic: swapper/1/0/0x00000002 [ 105.800290] Modules linked in: [ 105.800327] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.9.0-rc1-gff1304be0a05-dirty #21 [ 105.800337] Hardware name: Thundercomm Dragonboard 845c (DT) [ 105.800353] Call trace: [ 105.800414] dump_backtrace+0x0/0x1d4 [ 105.800439] show_stack+0x14/0x1c [ 105.800462] dump_stack+0xc0/0x100 [ 105.800490] __schedule_bug+0x58/0x74 [ 105.800523] __schedule+0x590/0x65c [ 105.800538] schedule+0x78/0x10c [ 105.800553] schedule_timeout+0x188/0x250 [ 105.800585] qmp_send.constprop.10+0x12c/0x1b0 [ 105.800599] qmp_qdss_clk_prepare+0x18/0x20 [ 105.800622] clk_core_prepare+0x48/0xd4 [ 105.800639] clk_prepare+0x20/0x34 [ 105.800663] amba_pm_runtime_resume+0x54/0x90 [ 105.800695] __rpm_callback+0xdc/0x138 [ 105.800709] rpm_callback+0x24/0x78 [ 105.800724] rpm_resume+0x328/0x47c [ 105.800739] __pm_runtime_resume+0x50/0x74 [ 105.800768] cti_starting_cpu+0x40/0xa4 [ 105.800795] cpuhp_invoke_callback+0x84/0x1e0 [ 105.800814] notify_cpu_starting+0x9c/0xb8 [ 105.800834] secondary_start_kernel+0xd8/0x164 [ 105.800933] CPU1: Booted secondary processor 0x0000000100 [0x517f803c] Fixes: e9b88058 ("coresight: cti: Add CPU Hotplug handling to CTI driver") Reviewed-by:
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Tingwei Zhang authored
Coresight_claim_device() is called in cti_starting_cpu() only when CTI is enabled while coresight_disclaim_device() is called uncontionally in cti_dying_cpu(). This triggered below WARNING. Only call disclaim device when CTI device is enabled to fix it. [ 75.989643] WARNING: CPU: 1 PID: 14 at kernel/drivers/hwtracing/coresight/coresight.c:209 coresight_disclaim_device_unlocked+0x10/0x24 [ 75.989697] CPU: 1 PID: 14 Comm: migration/1 Not tainted 5.9.0-rc1-gff1304be0a05-dirty #21 [ 75.989709] Hardware name: Thundercomm Dragonboard 845c (DT) [ 75.989737] pstate: 80c00085 (Nzcv daIf +PAN +UAO BTYPE=--) [ 75.989758] pc : coresight_disclaim_device_unlocked+0x10/0x24 [ 75.989775] lr : coresight_disclaim_device+0x24/0x38 [ 75.989783] sp : ffff800011cd3c90 . [ 75.990018] Call trace: [ 75.990041] coresight_disclaim_device_unlocked+0x10/0x24 [ 75.990066] cti_dying_cpu+0x34/0x4c [ 75.990101] cpuhp_invoke_callback+0x84/0x1e0 [ 75.990121] take_cpu_down+0x90/0xe0 [ 75.990154] multi_cpu_stop+0x134/0x160 [ 75.990171] cpu_stopper_thread+0xb0/0x13c [ 75.990196] smpboot_thread_fn+0x1c4/0x270 [ 75.990222] kthread+0x128/0x154 [ 75.990251] ret_from_fork+0x10/0x18 Fixes: e9b88058 ("coresight: cti: Add CPU Hotplug handling to CTI driver") Reviewed-by:
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Qi Liu authored
Add ETMv4 periperhal ID for HiSilicon Hip08 and Hip09 platform. Hip08 contains ETMv4.2 device and Hip09 contains ETMv4.5 device. Acked-by:
Suzuki K Poulose <suzuki.oulose@arm.com> Signed-off-by:
Qi Liu <liuqi115@huawei.com> Signed-off-by:
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Mian Yousaf Kaukab authored
Since port-numbers start from 0, add 1 to port-number to get the port count. Fix following crash when Coresight is enabled on ACPI based systems: [ 61.061736] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 ... [ 61.135494] pc : acpi_coresight_parse_graph+0x1c4/0x37c [ 61.140705] lr : acpi_coresight_parse_graph+0x160/0x37c [ 61.145915] sp : ffff800012f4ba40 [ 61.145917] x29: ffff800012f4ba40 x28: ffff00becce62f98 [ 61.159896] x27: 0000000000000005 x26: ffff00becd8a7c88 [ 61.165195] x25: ffff00becd8a7d88 x24: ffff00becce62f80 [ 61.170492] x23: ffff800011ef99c0 x22: ffff009efb8bc010 [ 61.175790] x21: 0000000000000018 x20: 0000000000000005 [ 61.181087] x19: ffff00becce62e80 x18: 0000000000000020 [ 61.186385] x17: 0000000000000001 x16: 00000000000002a8 [ 61.191682] x15: ffff000838648550 x14: ffffffffffffffff [ 61.196980] x13: 0000000000000000 x12: ffff00becce62d87 [ 61.202277] x11: 00000000ffffff76 x10: 000000000000002e [ 61.207575] x9 : ffff8000107e1a68 x8 : ffff00becce63000 [ 61.212873] x7 : 0000000000000018 x6 : 000000000000003f [ 61.218170] x5 : 0000000000000000 x4 : 0000000000000000 [ 61.223467] x3 : 0000000000000000 x2 : 0000000000000000 [ 61.228764] x1 : ffff00becce62f80 x0 : 0000000000000000 [ 61.234062] Call trace: [ 61.236497] acpi_coresight_parse_graph+0x1c4/0x37c [ 61.241361] coresight_get_platform_data+0xdc/0x130 [ 61.246225] tmc_probe+0x138/0x2dc [ 61.246227] amba_probe+0xdc/0x220 [ 61.255779] really_probe+0xe8/0x49c [ 61.255781] driver_probe_device+0xec/0x140 [ 61.255782] device_driver_attach+0xc8/0xd0 [ 61.255785] __driver_attach+0xac/0x180 [ 61.265857] bus_for_each_dev+0x78/0xcc [ 61.265859] driver_attach+0x2c/0x40 [ 61.265861] bus_add_driver+0x150/0x244 [ 61.265863] driver_register+0x80/0x13c [ 61.273591] amba_driver_register+0x60/0x70 [ 61.273594] tmc_driver_init+0x20/0x2c [ 61.281582] do_one_initcall+0x50/0x230 [ 61.281585] do_initcalls+0x104/0x144 [ 61.291831] kernel_init_freeable+0x168/0x1dc [ 61.291834] kernel_init+0x1c/0x120 [ 61.299215] ret_from_fork+0x10/0x18 [ 61.299219] Code: b9400022 f9400660 9b277c42 8b020000 (f9400404) [ 61.307381] ---[ end trace 63c6c3d7ec6a9b7c ]--- [ 61.315225] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Fixes: d375b356 ("coresight: Fix support for sparsely populated ports") Reported-by:
Ruediger Oertel <ro@suse.com> Tested-by:
Mian Yousaf Kaukab <ykaukab@suse.de> Signed-off-by:
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Tingwei Zhang authored
STP_PACKET_MARKED is not supported by STM currently. Add STM_FLAG_MARKED to support marked packet in STM. Signed-off-by:
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Sai Prakash Ranjan authored
etm4_count keeps track of number of ETMv4 registered and on some systems, a race is observed on etm4_count variable which can lead to multiple calls to cpuhp_setup_state_nocalls_cpuslocked(). This function internally calls cpuhp_store_callbacks() which prevents multiple registrations of callbacks for a given state and due to this race, it returns -EBUSY leading to ETM probe failures like below. coresight-etm4x: probe of 7040000.etm failed with error -16 This race can easily be triggered with async probe by setting probe type as PROBE_PREFER_ASYNCHRONOUS and with ETM power management property "arm,coresight-loses-context-with-cpu". Prevent this race by moving cpuhp callbacks to etm driver init since the cpuhp callbacks doesn't have to depend on the etm4_count and can be once setup during driver init. Similarly we move cpu_pm notifier registration to driver init and completely remove etm4_count usage. Also now we can use non cpuslocked version of cpuhp callbacks with this movement. Fixes: 9b6a3f36 ("coresight: etmv4: Fix CPU power management setup in probe() function") Fixes: 58eb457b ("hwtracing/coresight-etm4x: Convert to hotplug state machine") Suggested-by:
Stephen Boyd <swboyd@chromium.org> Reviewed-by:
Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Signed-off-by:
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- 16 Sep, 2020 7 commits
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Ricky Wu authored
v4: split power down flow and power saving function to two patch v5: fix up modified change under the --- line Add rts522a L1 sub-state support Save more power on rts5227 rts5249 rts525a rts5260 Fix rts5260 driving parameter Signed-off-by:
Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/20200907100731.7722-1-ricky_wu@realtek.comSigned-off-by:
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Jonathan Marek authored
Initializing sensors requires attaching to pd 2. Add an ioctl for that. This corresponds to FASTRPC_INIT_ATTACH_SENSORS in the downstream driver. Signed-off-by:
Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20200908131013.19630-4-jonathan@marek.caSigned-off-by:
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Jonathan Marek authored
Define SENSORS_PD for the next patch, to void using magic values for these. Signed-off-by:
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Jonathan Marek authored
Use tabs instead of spaces. Fixes: 2419e55e ("misc: fastrpc: add mmap/unmap support") Signed-off-by:
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Ricky Wu authored
Fix and sort out rtsx driver power down flow Signed-off-by:
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Keita Suzuki authored
When mfd_add_devices() fail, pcr->slots should also be freed. However, the current implementation does not free the member, leading to a memory leak. Fix this by adding a new goto label that frees pcr->slots. Signed-off-by:
Keita Suzuki <keitasuzuki.park@sslab.ics.keio.ac.jp> Link: https://lore.kernel.org/r/20200909071853.4053-1-keitasuzuki.park@sslab.ics.keio.ac.jpSigned-off-by:
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Colin Ian King authored
The pointer n is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Acked-by:
Todd Kjos <tkjos@google.com> Acked-by:
Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by:
Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20200910151221.751464-1-colin.king@canonical.comSigned-off-by:
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- 14 Sep, 2020 3 commits
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Colin Ian King authored
Currently the return value from ret is uninitialized so the function hisi_hikey_usb_parse_kirin970 is returning a garbage value when succeeding. Since ret is not used anywhere else in the function, remove it and just return 0 success at the end of the function. Fixes: d210a002 ("misc: hisi_hikey_usb: add support for Hikey 970") Reviewed-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by:
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Greg Kroah-Hartman authored
Merge tag 'fpga-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next Moritz writes: Here is the first set of changes for the 5.10-rc1 merge window. Xilinx: - Luca's changes clean up the xilinx-spi driver and add better diagnostics on errors. Core: - I cleaned up a stray comment. - Richard's change marks FPGA manager tasks un-interruptible. - Tom has agreed to help out as Reviewer in the FPGA Manager subsystem. DFL: - Xu's changes add a new bus that is the first part of a series to support adding devices via DFL (the other parts are still under review) All patches have been reviewed on the mailing list, and have been in the last few linux-next releases (as part of my for-next branch) without issues. Signed-off-by:
Moritz Fischer <mdf@kernel.org> * tag 'fpga-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga: fpga: dfl: create a dfl bus type to support DFL devices fpga: fpga-region: Cleanup an outdated comment fpga: dfl: map feature mmio resources in their own feature drivers fpga manager: xilinx-spi: provide better diagnostics on programming failure fpga manager: xilinx-spi: add error checking after gpiod_get_value() fpga manager: xilinx-spi: fix write_complete timeout handling fpga manager: xilinx-spi: remove final dot from dev_err() strings fpga manager: xilinx-spi: remove stray comment fpga: dfl: change data type of feature id to u16 MAINTAINERS: Add Tom Rix as fpga reviewer fpga: stratix10-soc: make FPGA task un-interruptible
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Greg Kroah-Hartman authored
We want the char/misc fixes in here as well. Signed-off-by:
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- 13 Sep, 2020 6 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds authored
Pull ARM SoC fixes from Olof Johansson: "A collection of fixes I've been accruing over the last few weeks, none of them have been severe enough to warrant flushing the queue but it's been long enough now that it's a good idea to send them in. A handful of them are fixups for QSPI DT/bindings/compatibles, some smaller fixes for system DMA clock control and TMU interrupts on i.MX, a handful of fixes for OMAP, including a fix for DSI (display) on omap5" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (27 commits) arm64: dts: ns2: Fixed QSPI compatible string ARM: dts: BCM5301X: Fixed QSPI compatible string ARM: dts: NSP: Fixed QSPI compatible string ARM: dts: bcm: HR2: Fixed QSPI compatible string dt-bindings: spi: Fix spi-bcm-qspi compatible ordering ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3 arm64: dts: imx8mp: correct sdma1 clk setting arm64: dts: imx8mq: Fix TMU interrupt property ARM: dts: imx7d-zii-rmu2: fix rgmii phy-mode for ksz9031 phy ARM: dts: vfxxx: Add syscon compatible with OCOTP ARM: dts: imx6q-logicpd: Fix broken PWM arm64: dts: imx: Add missing imx8mm-beacon-kit.dtb to build ARM: dts: imx6q-prtwd2: Remove unneeded i2c unit name ARM: dts: imx6qdl-gw51xx: Remove unneeded #address-cells/#size-cells ARM: dts: imx7ulp: Correct gpio ranges ARM: dts: ls1021a: fix QuadSPI-memory reg range arm64: defconfig: Enable ptn5150 extcon driver arm64: defconfig: Enable USB gadget with configfs ARM: configs: Update Integrator defconfig ARM: dts: omap5: Fix DSI base address and clocks ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB/Thunderbolt fixes from Greg KH: "Here are some small USB and Thunderbolt driver fixes for 5.9-rc5. Nothing huge, just a number of bugfixes and new device ids for problems reported: - new USB serial driver ids - bug fixes for syzbot reported problems - typec driver fixes - thunderbolt driver fixes - revert of reported broken commit All of these have been in linux-next with no reported issues" * tag 'usb-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes usb: typec: intel_pmc_mux: Do not configure Altmode HPD High usb: core: fix slab-out-of-bounds Read in read_descriptors Revert "usb: dwc3: meson-g12a: fix shared reset control use" usb: typec: ucsi: acpi: Check the _DEP dependencies usb: typec: intel_pmc_mux: Un-register the USB role switch usb: Fix out of sync data toggle if a configured device is reconfigured USB: serial: option: support dynamic Quectel USB compositions USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules thunderbolt: Use maximum USB3 link rate when reclaiming if link is not up thunderbolt: Disable ports that are not implemented USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging/IIO driver fixes from Greg KH: "Here are a number of staging and IIO driver fixes for 5.9-rc5. The majority of these are IIO driver fixes, to resolve a timestamp issue that was recently found to affect a bunch of IIO drivers. The other fixes in here are: - small IIO driver fixes - greybus driver fix - counter driver fix (came in through the IIO fixes tree) All of these have been in linux-next for a while with no reported issues" * tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits) iio: adc: mcp3422: fix locking on error path iio: adc: mcp3422: fix locking scope iio: adc: meson-saradc: Use the parent device to look up the calib data iio:adc:max1118 Fix alignment of timestamp and data leak issues iio:adc:ina2xx Fix timestamp alignment issue. iio:adc:ti-adc084s021 Fix alignment and data leak issues. iio:adc:ti-adc081c Fix alignment and data leak issues iio:magnetometer:ak8975 Fix alignment and data leak issues. iio:light:ltr501 Fix timestamp alignment issue. iio:light:max44000 Fix timestamp alignment and prevent data leak. iio:chemical:ccs811: Fix timestamp alignment and prevent data leak. iio:proximity:mb1232: Fix timestamp alignment and prevent data leak. iio:accel:mma7455: Fix timestamp alignment and prevent data leak. iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak. iio:accel:mma8452: Fix timestamp alignment and prevent data leak. iio: accel: kxsd9: Fix alignment of local buffer. iio: adc: rockchip_saradc: select IIO_TRIGGERED_BUFFER iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set counter: microchip-tcb-capture: check the correct variable iio: cros_ec: Set Gyroscope default frequency to 25Hz ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds authored
Pull driver core fixes from Greg KH: "Here are some small driver core and debugfs fixes for 5.9-rc5 Included in here are: - firmware loader memory leak fix - firmware loader testing fixes for non-EFI systems - device link locking fixes found by lockdep - kobject_del() bugfix that has been affecting some callers - debugfs minor fix All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: test_firmware: Test platform fw loading on non-EFI systems PM: <linux/device.h>: fix @em_pd kernel-doc warning kobject: Drop unneeded conditional in __kobject_del() driver core: Fix device_pm_lock() locking for device links MAINTAINERS: Add the security document to SECURITY CONTACT driver code: print symbolic error code debugfs: Fix module state check condition kobject: Restore old behaviour of kobject_del(NULL) firmware_loader: fix memory leak for paged buffer
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https://github.com/Broadcom/stblinuxOlof Johansson authored
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for 5.9, please pull the following: - Florian fixes the Broadcom QSPI controller binding such that the most specific compatible string is the left most one, and all existing in-tree users are updated as well. * tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux: arm64: dts: ns2: Fixed QSPI compatible string ARM: dts: BCM5301X: Fixed QSPI compatible string ARM: dts: NSP: Fixed QSPI compatible string ARM: dts: bcm: HR2: Fixed QSPI compatible string dt-bindings: spi: Fix spi-bcm-qspi compatible ordering Link: https://lore.kernel.org/r/20200909211857.4144718-1-f.fainelli@gmail.comSigned-off-by:
Olof Johansson <olof@lixom.net>
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