Junhao He c0a232f1e1 coresight: trbe: Fix TRBE potential sleep in atomic context ... smp_call_function_single() will allocate an IPI interrupt vector to the target processor and send a function call request to the interrupt vector. After the target processor receives the IPI interrupt, it will execute arm_trbe_remove_coresight_cpu() call request in the interrupt handler. According to the device_unregister() stack information, if other process is useing the device, the down_write() may sleep, and trigger deadlocks or unexpected errors. arm_trbe_remove_coresight_cpu coresight_unregister device_unregister device_del kobject_del __kobject_del sysfs_remove_dir kernfs_remove down_write ---------> it may sleep Add a helper arm_trbe_disable_cpu() to disable TRBE precpu irq and reset per TRBE. Simply call arm_trbe_remove_coresight_cpu() directly without useing the smp_call_function_single(), which is the same as registering the TRBE coresight device. Fixes: 3fbf7f011f ("coresight: sink: Add TRBE driver") Signed-off-by: Junhao He <hejunhao3@huawei.com> Link: https://lore.kernel.org/r/20230814093813.19152-2-hejunhao3@huawei.com [ Remove duplicate cpumask checks during removal ] Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> [ v3 - Remove the operation of assigning NULL to cpudata->drvdata ] Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230818084052.10116-1-hejunhao3@huawei.com		2023-08-18 16:42:26 +01:00
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coresight-catu.c	coresight: Enable and disable helper devices adjacent to the path	2023-06-05 15:46:47 +01:00
coresight-catu.h	coresight: Make new csdev_access offsets unsigned	2022-08-31 10:56:36 -06:00
coresight-cfg-afdo.c	coresight: config: Add preloaded configurations	2021-08-18 22:33:28 +02:00
coresight-cfg-preload.c	coresight: configuration: Update API to introduce load owner concept	2021-11-26 11:27:21 -07:00
coresight-cfg-preload.h	coresight: config: Add preloaded configurations	2021-08-18 22:33:28 +02:00
coresight-config.c	coresight: config: Add configuration and feature generic functions	2021-08-18 22:33:27 +02:00
coresight-config.h	coresight: syscfg: Update load and unload operations	2022-06-29 09:35:58 -06:00
coresight-core.c	hwtracing: coresight: Explicitly include correct DT includes	2023-07-26 16:46:24 +01:00
coresight-cpu-debug.c	coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier	2022-05-09 16:03:24 +01:00
coresight-cti-core.c	coresight: Fix all W=1 build warnings	2023-07-26 18:01:52 +01:00
coresight-cti-platform.c	coresight: cti: Reduce scope for the variable 'cs_fwnode' in cti_plat_create_connection()	2021-02-04 17:00:32 +01:00
coresight-cti-sysfs.c	coresight: Fix CTI module refcount leak by making it a helper device	2023-06-05 15:46:47 +01:00
coresight-cti.h	coresight: Fix CTI module refcount leak by making it a helper device	2023-06-05 15:46:47 +01:00
coresight-dummy.c	coresight: dummy: simplify the code with module_platform_driver	2023-08-04 14:17:30 +01:00
coresight-etb10.c	coresight: Make refcount a property of the connection	2023-06-05 15:46:46 +01:00
coresight-etm3x-core.c	coresight: Use enum type for cs_mode wherever possible	2023-06-05 15:46:45 +01:00
coresight-etm3x-sysfs.c	coresight: etm3x: Update ETM3 driver to use Trace ID API	2023-01-19 10:16:47 +00:00
coresight-etm4x-cfg.c	coresight: Fix all W=1 build warnings	2023-07-26 18:01:52 +01:00
coresight-etm4x-cfg.h	coresight: config: Add preloaded configurations	2021-08-18 22:33:28 +02:00
coresight-etm4x-core.c	coresight: etm4x: Ensure valid drvdata and clock before clk_put()	2023-08-17 11:49:21 +01:00
coresight-etm4x-sysfs.c	coresight: etm4x: Fix missing trctraceidr file in sysfs	2023-06-06 10:39:15 +01:00
coresight-etm4x.h	coresight: etm4x: Change etm4_platform_driver driver for MMIO devices	2023-07-26 16:46:25 +01:00
coresight-etm-cp14.c	coresight: Moving framework and drivers to SPDX identifier	2018-05-14 16:19:59 +02:00
coresight-etm-perf.c	coresight: Enable and disable helper devices adjacent to the path	2023-06-05 15:46:47 +01:00
coresight-etm-perf.h	coresight: perf: Output trace id only once	2023-01-24 10:41:46 +00:00
coresight-etm.h	coresight: etmX.X: stm: Remove trace_id() callback	2023-01-19 10:16:47 +00:00
coresight-funnel.c	coresight: Make refcount a property of the connection	2023-06-05 15:46:46 +01:00
coresight-platform.c	coresight: Fix memory leak in acpi_buffer->pointer	2023-08-18 11:23:47 +01:00
coresight-priv.h	coresight: etm4x: Match all ETM4 instances based on DEVARCH and DEVTYPE	2023-06-07 12:07:10 +01:00
coresight-replicator.c	coresight: Make refcount a property of the connection	2023-06-05 15:46:46 +01:00
coresight-self-hosted-trace.h	coresight: trbe: Prohibit trace before disabling TRBE	2021-10-27 11:45:33 -06:00
coresight-stm.c	coresight: Use enum type for cs_mode wherever possible	2023-06-05 15:46:45 +01:00
coresight-syscfg-configfs.c	coresight: configfs: Allow configfs to activate configuration	2021-11-26 11:34:27 -07:00
coresight-syscfg-configfs.h	coresight: configfs: Allow configfs to activate configuration	2021-11-26 11:34:27 -07:00
coresight-syscfg.c	coresight: syscfg: Update load and unload operations	2022-06-29 09:35:58 -06:00
coresight-syscfg.h	coresight: syscfg: Update load and unload operations	2022-06-29 09:35:58 -06:00
coresight-sysfs.c	coresight: Fix CTI module refcount leak by making it a helper device	2023-06-05 15:46:47 +01:00
coresight-tmc-core.c	coresight: tmc: Don't enable TMC when it's not ready.	2023-01-30 11:45:32 +00:00
coresight-tmc-etf.c	coresight: tmc: Explicit type conversions to prevent integer overflow	2023-08-04 10:52:32 +01:00
coresight-tmc-etr.c	coresight: tmc: Explicit type conversions to prevent integer overflow	2023-08-04 10:52:32 +01:00
coresight-tmc.h	coresight: tmc: Explicit type conversions to prevent integer overflow	2023-08-04 10:52:32 +01:00
coresight-tpda.c	coresight: Make refcount a property of the connection	2023-06-05 15:46:46 +01:00
coresight-tpda.h	Coresight: Add TPDA link driver	2023-01-20 11:39:03 +00:00
coresight-tpdm.c	coresight: Use enum type for cs_mode wherever possible	2023-06-05 15:46:45 +01:00
coresight-tpdm.h	coresight-tpdm: Add integration test support	2023-01-20 11:39:03 +00:00
coresight-tpiu.c	coresight: Make refcount a property of the connection	2023-06-05 15:46:46 +01:00
coresight-trace-id.c	coresight: trace-id: Add debug & test macros to Trace ID allocation	2023-01-19 10:16:47 +00:00
coresight-trace-id.h	coresight: trace-id: Add API to dynamically assign Trace ID values	2023-01-19 10:16:46 +00:00
coresight-trbe.c	coresight: trbe: Fix TRBE potential sleep in atomic context	2023-08-18 16:42:26 +01:00
coresight-trbe.h	coresight: trbe: Directly use ID_AA64DFR0_EL1_TraceBuffer_IMP	2023-08-02 12:53:28 +01:00
Kconfig	Coresight: Add coresight dummy driver	2023-06-15 08:50:23 +01:00
Makefile	Coresight: Add coresight dummy driver	2023-06-15 08:50:23 +01:00
ultrasoc-smb.c	coresight: Make refcount a property of the connection	2023-06-05 15:46:46 +01:00
ultrasoc-smb.h	coresight: Use enum type for cs_mode wherever possible	2023-06-05 15:46:45 +01:00