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Merge tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/k…
…ernel/git/gregkh/char-misc Pull char/misc and other driver subsystem updates from Greg KH: "Here is the large set of driver changes for char/misc drivers and other smaller driver subsystems that flow through this git tree. Included in here are: - New IIO drivers and features and improvments in that subsystem - New hwtracing drivers and additions to that subsystem - lots of interconnect changes and new drivers as that subsystem seems under very active development recently. This required also merging in the icc subsystem changes through this tree. - FPGA driver updates - counter subsystem and driver updates - MHI driver updates - nvmem driver updates - documentation updates - Other smaller driver updates and fixes, full details in the shortlog All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits) scripts/tags.sh: fix incompatibility with PCRE2 firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries mei: lower the log level for non-fatal failed messages mei: bus: disallow driver match while dismantling device misc: vmw_balloon: fix memory leak with using debugfs_lookup() nvmem: stm32: fix OPTEE dependency dt-bindings: nvmem: qfprom: add IPQ8074 compatible nvmem: qcom-spmi-sdam: register at device init time nvmem: rave-sp-eeprm: fix kernel-doc bad line warning nvmem: stm32: detect bsec pta presence for STM32MP15x nvmem: stm32: add OP-TEE support for STM32MP13x nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of() nvmem: core: add nvmem_add_one_cell() nvmem: core: drop the removal of the cells in nvmem_add_cells() nvmem: core: move struct nvmem_cell_info to nvmem-provider.h nvmem: core: add an index parameter to the cell of: property: add #nvmem-cell-cells property of: property: make #.*-cells optional for simple props of: base: add of_parse_phandle_with_optional_args() net: add helper eth_addr_add() ...
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@@ -236,7 +236,7 @@ What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/traceid | |
Date: November 2014 | ||
KernelVersion: 3.19 | ||
Contact: Mathieu Poirier <[email protected]> | ||
Description: (RW) Holds the trace ID that will appear in the trace stream | ||
Description: (RO) Holds the trace ID that will appear in the trace stream | ||
coming from this trace entity. | ||
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||
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/trigger_event | ||
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Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
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What: /sys/bus/coresight/devices/<tpdm-name>/integration_test | ||
Date: January 2023 | ||
KernelVersion 6.2 | ||
Contact: Jinlong Mao (QUIC) <[email protected]>, Tao Zhang (QUIC) <[email protected]> | ||
Description: | ||
(Write) Run integration test for tpdm. Integration test | ||
will generate test data for tpdm. It can help to make | ||
sure that the trace path is enabled and the link configurations | ||
are fine. | ||
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||
Accepts only one of the 2 values - 1 or 2. | ||
1 : Generate 64 bits data | ||
2 : Generate 32 bits data |
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31
Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb
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What: /sys/bus/coresight/devices/ultra_smb<N>/enable_sink | ||
Date: January 2023 | ||
KernelVersion: 6.3 | ||
Contact: Junhao He <[email protected]> | ||
Description: (RW) Add/remove a SMB device from a trace path. There can be | ||
multiple sources for a single SMB device. | ||
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What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/buf_size | ||
Date: January 2023 | ||
KernelVersion: 6.3 | ||
Contact: Junhao He <[email protected]> | ||
Description: (RO) Shows the buffer size of each UltraSoc SMB device. | ||
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What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/buf_status | ||
Date: January 2023 | ||
KernelVersion: 6.3 | ||
Contact: Junhao He <[email protected]> | ||
Description: (RO) Shows the value of UltraSoc SMB status register. | ||
BIT(0) is zero means buffer is empty. | ||
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What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/read_pos | ||
Date: January 2023 | ||
KernelVersion: 6.3 | ||
Contact: Junhao He <[email protected]> | ||
Description: (RO) Shows the value of UltraSoc SMB Read Pointer register. | ||
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What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/write_pos | ||
Date: January 2023 | ||
KernelVersion: 6.3 | ||
Contact: Junhao He <[email protected]> | ||
Description: (RO) Shows the value of UltraSoc SMB Write Pointer register. |
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@@ -19,6 +19,24 @@ Contact: [email protected] | |
Description: Available instances left of the device | ||
Return -ENODEV if uacce_ops get_available_instances is not provided | ||
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What: /sys/class/uacce/<dev_name>/isolate_strategy | ||
Date: Nov 2022 | ||
KernelVersion: 6.1 | ||
Contact: [email protected] | ||
Description: (RW) A sysfs node that configure the error threshold for the hardware | ||
isolation strategy. This size is a configured integer value, which is the | ||
number of threshold for hardware errors occurred in one hour. The default is 0. | ||
0 means never isolate the device. The maximum value is 65535. You can write | ||
a number of threshold based on your hardware. | ||
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What: /sys/class/uacce/<dev_name>/isolate | ||
Date: Nov 2022 | ||
KernelVersion: 6.1 | ||
Contact: [email protected] | ||
Description: (R) A sysfs node that read the device isolated state. The value 1 | ||
means the device is unavailable. The 0 means the device is | ||
available. | ||
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What: /sys/class/uacce/<dev_name>/algorithms | ||
Date: Feb 2020 | ||
KernelVersion: 5.7 | ||
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What: /sys/devices/platform/amba_pl/<dev>/errcnt | ||
Date: Nov 2022 | ||
Contact: [email protected] | ||
Description: This control file provides the fault detection count. | ||
This file cannot be written. | ||
Example: | ||
# cat /sys/devices/platform/amba_pl/44a10000.tmr_manager/errcnt | ||
1 | ||
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What: /sys/devices/platform/amba_pl/<dev>/dis_block_break | ||
Date: Nov 2022 | ||
Contact: [email protected] | ||
Description: Write any value to it, This control file enables the break signal. | ||
This file is write only. | ||
Example: | ||
# echo <any value> > /sys/devices/platform/amba_pl/44a10000.tmr_manager/dis_block_break |
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129
Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
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# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause | ||
# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. | ||
%YAML 1.2 | ||
--- | ||
$id: http://devicetree.org/schemas/arm/qcom,coresight-tpda.yaml# | ||
$schema: http://devicetree.org/meta-schemas/core.yaml# | ||
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title: Trace, Profiling and Diagnostics Aggregator - TPDA | ||
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description: | | ||
TPDAs are responsible for packetization and timestamping of data sets | ||
utilizing the MIPI STPv2 packet protocol. Pulling data sets from one or | ||
more attached TPDM and pushing the resultant (packetized) data out a | ||
master ATB interface. Performing an arbitrated ATB interleaving (funneling) | ||
task for free-flowing data from TPDM (i.e. CMB and DSB data set flows). | ||
There is no strict binding between TPDM and TPDA. TPDA can have multiple | ||
TPDMs connect to it. But There must be only one TPDA in the path from the | ||
TPDM source to TMC sink. TPDM can directly connect to TPDA's inport or | ||
connect to funnel which will connect to TPDA's inport. | ||
We can use the commands are similar to the below to validate TPDMs. | ||
Enable coresight sink first. | ||
echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink | ||
echo 1 > /sys/bus/coresight/devices/tpdm0/enable_source | ||
echo 1 > /sys/bus/coresight/devices/tpdm0/integration_test | ||
echo 2 > /sys/bus/coresight/devices/tpdm0/integration_test | ||
The test data will be collected in the coresight sink which is enabled. | ||
If rwp register of the sink is keeping updating when do integration_test | ||
(by cat tmc_etf0/mgmt/rwp), it means there is data generated from TPDM | ||
to sink. | ||
maintainers: | ||
- Mao Jinlong <[email protected]> | ||
- Tao Zhang <[email protected]> | ||
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||
# Need a custom select here or 'arm,primecell' will match on lots of nodes | ||
select: | ||
properties: | ||
compatible: | ||
contains: | ||
enum: | ||
- qcom,coresight-tpda | ||
required: | ||
- compatible | ||
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properties: | ||
$nodename: | ||
pattern: "^tpda(@[0-9a-f]+)$" | ||
compatible: | ||
items: | ||
- const: qcom,coresight-tpda | ||
- const: arm,primecell | ||
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reg: | ||
minItems: 1 | ||
maxItems: 2 | ||
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clocks: | ||
maxItems: 1 | ||
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clock-names: | ||
items: | ||
- const: apb_pclk | ||
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in-ports: | ||
type: object | ||
description: | | ||
Input connections from TPDM to TPDA | ||
$ref: /schemas/graph.yaml#/properties/ports | ||
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out-ports: | ||
type: object | ||
description: | | ||
Output connections from the TPDA to legacy CoreSight trace bus. | ||
$ref: /schemas/graph.yaml#/properties/ports | ||
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properties: | ||
port: | ||
description: | ||
Output connection from the TPDA to legacy CoreSight Trace bus. | ||
$ref: /schemas/graph.yaml#/properties/port | ||
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required: | ||
- compatible | ||
- reg | ||
- clocks | ||
- clock-names | ||
- in-ports | ||
- out-ports | ||
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additionalProperties: false | ||
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examples: | ||
# minimum tpda definition. | ||
- | | ||
tpda@6004000 { | ||
compatible = "qcom,coresight-tpda", "arm,primecell"; | ||
reg = <0x6004000 0x1000>; | ||
clocks = <&aoss_qmp>; | ||
clock-names = "apb_pclk"; | ||
in-ports { | ||
#address-cells = <1>; | ||
#size-cells = <0>; | ||
port@0 { | ||
reg = <0>; | ||
tpda_qdss_0_in_tpdm_dcc: endpoint { | ||
remote-endpoint = | ||
<&tpdm_dcc_out_tpda_qdss_0>; | ||
}; | ||
}; | ||
}; | ||
out-ports { | ||
port { | ||
tpda_qdss_out_funnel_in0: endpoint { | ||
remote-endpoint = | ||
<&funnel_in0_in_tpda_qdss>; | ||
}; | ||
}; | ||
}; | ||
}; | ||
... |
93 changes: 93 additions & 0 deletions
93
Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
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# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause | ||
# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. | ||
%YAML 1.2 | ||
--- | ||
$id: http://devicetree.org/schemas/arm/qcom,coresight-tpdm.yaml# | ||
$schema: http://devicetree.org/meta-schemas/core.yaml# | ||
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title: Trace, Profiling and Diagnostics Monitor - TPDM | ||
|
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description: | | ||
The TPDM or Monitor serves as data collection component for various dataset | ||
types specified in the QPMDA spec. It covers Implementation defined ((ImplDef), | ||
Basic Counts (BC), Tenure Counts (TC), Continuous Multi-Bit (CMB), and Discrete | ||
Single Bit (DSB). It performs data collection in the data producing clock | ||
domain and transfers it to the data collection time domain, generally ATB | ||
clock domain. | ||
The primary use case of the TPDM is to collect data from different data | ||
sources and send it to a TPDA for packetization, timestamping, and funneling. | ||
maintainers: | ||
- Mao Jinlong <[email protected]> | ||
- Tao Zhang <[email protected]> | ||
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# Need a custom select here or 'arm,primecell' will match on lots of nodes | ||
select: | ||
properties: | ||
compatible: | ||
contains: | ||
enum: | ||
- qcom,coresight-tpdm | ||
required: | ||
- compatible | ||
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properties: | ||
$nodename: | ||
pattern: "^tpdm(@[0-9a-f]+)$" | ||
compatible: | ||
items: | ||
- const: qcom,coresight-tpdm | ||
- const: arm,primecell | ||
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reg: | ||
minItems: 1 | ||
maxItems: 2 | ||
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clocks: | ||
maxItems: 1 | ||
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clock-names: | ||
items: | ||
- const: apb_pclk | ||
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out-ports: | ||
description: | | ||
Output connections from the TPDM to coresight funnel/TPDA. | ||
$ref: /schemas/graph.yaml#/properties/ports | ||
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properties: | ||
port: | ||
description: Output connection from the TPDM to coresight | ||
funnel/TPDA. | ||
$ref: /schemas/graph.yaml#/properties/port | ||
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required: | ||
- compatible | ||
- reg | ||
- clocks | ||
- clock-names | ||
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additionalProperties: false | ||
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examples: | ||
# minimum TPDM definition. TPDM connect to coresight TPDA. | ||
- | | ||
tpdm@684c000 { | ||
compatible = "qcom,coresight-tpdm", "arm,primecell"; | ||
reg = <0x0684c000 0x1000>; | ||
clocks = <&aoss_qmp>; | ||
clock-names = "apb_pclk"; | ||
out-ports { | ||
port { | ||
tpdm_prng_out_tpda_qdss: endpoint { | ||
remote-endpoint = | ||
<&tpda_qdss_in_tpdm_prng>; | ||
}; | ||
}; | ||
}; | ||
}; | ||
... |
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