forked from Minki/linux
6afa8a1387
Adding sysfs entries to control the selection of the resources the trace unit will use as triggers to perform a trace run. Signed-off-by: Pratik Patel <pratikp@codeaurora.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
245 lines
8.9 KiB
Plaintext
245 lines
8.9 KiB
Plaintext
What: /sys/bus/coresight/devices/<memory_map>.etm/enable_source
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Enable/disable tracing on this specific trace entiry.
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Enabling a source implies the source has been configured
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properly and a sink has been identidifed for it. The path
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of coresight components linking the source to the sink is
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configured and managed automatically by the coresight framework.
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What: /sys/bus/coresight/devices/<memory_map>.etm/cpu
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) The CPU this tracing entity is associated with.
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What: /sys/bus/coresight/devices/<memory_map>.etm/nr_pe_cmp
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of PE comparator inputs that are
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available for tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/nr_addr_cmp
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of address comparator pairs that are
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available for tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/nr_cntr
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of counters that are available for
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tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/nr_ext_inp
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates how many external inputs are implemented.
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What: /sys/bus/coresight/devices/<memory_map>.etm/numcidc
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of Context ID comparators that are
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available for tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/numvmidc
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of VMID comparators that are available
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for tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/nrseqstate
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of sequencer states that are
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implemented.
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What: /sys/bus/coresight/devices/<memory_map>.etm/nr_resource
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of resource selection pairs that are
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available for tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/nr_ss_cmp
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (R) Indicates the number of single-shot comparator controls that
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are available for tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/reset
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (W) Cancels all configuration on a trace unit and set it back
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to its boot configuration.
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What: /sys/bus/coresight/devices/<memory_map>.etm/mode
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls various modes supported by this ETM, for example
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P0 instruction tracing, branch broadcast, cycle counting and
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context ID tracing.
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What: /sys/bus/coresight/devices/<memory_map>.etm/pe
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls which PE to trace.
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What: /sys/bus/coresight/devices/<memory_map>.etm/event
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls the tracing of arbitrary events from bank 0 to 3.
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What: /sys/bus/coresight/devices/<memory_map>.etm/event_instren
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls the behavior of the events in bank 0 to 3.
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What: /sys/bus/coresight/devices/<memory_map>.etm/event_ts
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls the insertion of global timestamps in the trace
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streams.
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What: /sys/bus/coresight/devices/<memory_map>.etm/syncfreq
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls how often trace synchronization requests occur.
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What: /sys/bus/coresight/devices/<memory_map>.etm/cyc_threshold
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Sets the threshold value for cycle counting.
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What: /sys/bus/coresight/devices/<memory_map>.etm/bb_ctrl
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls which regions in the memory map are enabled to
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use branch broadcasting.
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What: /sys/bus/coresight/devices/<memory_map>.etm/event_vinst
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls instruction trace filtering.
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What: /sys/bus/coresight/devices/<memory_map>.etm/s_exlevel_vinst
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) In Secure state, each bit controls whether instruction
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tracing is enabled for the corresponding exception level.
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What: /sys/bus/coresight/devices/<memory_map>.etm/ns_exlevel_vinst
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) In non-secure state, each bit controls whether instruction
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tracing is enabled for the corresponding exception level.
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What: /sys/bus/coresight/devices/<memory_map>.etm/addr_idx
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Select which address comparator or pair (of comparators) to
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work with.
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What: /sys/bus/coresight/devices/<memory_map>.etm/addr_instdatatype
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls what type of comparison the trace unit performs.
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What: /sys/bus/coresight/devices/<memory_map>.etm/addr_single
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Used to setup single address comparator values.
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What: /sys/bus/coresight/devices/<memory_map>.etm/addr_range
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Used to setup address range comparator values.
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What: /sys/bus/coresight/devices/<memory_map>.etm/seq_idx
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Select which sequensor.
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What: /sys/bus/coresight/devices/<memory_map>.etm/seq_state
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Use this to set, or read, the sequencer state.
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What: /sys/bus/coresight/devices/<memory_map>.etm/seq_event
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Moves the sequencer state to a specific state.
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What: /sys/bus/coresight/devices/<memory_map>.etm/seq_reset_event
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Moves the sequencer to state 0 when a programmed event
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occurs.
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What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_idx
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Select which counter unit to work with.
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What: /sys/bus/coresight/devices/<memory_map>.etm/cntrldvr
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) This sets or returns the reload count value of the
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specific counter.
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What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_val
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) This sets or returns the current count value of the
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specific counter.
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What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_ctrl
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls the operation of the selected counter.
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What: /sys/bus/coresight/devices/<memory_map>.etm/res_idx
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Select which resource selection unit to work with.
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What: /sys/bus/coresight/devices/<memory_map>.etm/res_ctrl
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Date: April 2015
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KernelVersion: 4.01
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Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
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Description: (RW) Controls the selection of the resources in the trace unit.
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