Re: [PATCH v2 09/11] coresight: etm4x: docs: Update ABI doc for sysfs features added.

Mathieu Poirier
2019-09-03T19:43:08Z

On Thu, Aug 29, 2019 at 10:33:19PM +0100, Mike Leach wrote:
> Update document to include the new sysfs features added during this
> patchset.
>
> Updated to reflect the new sysfs component nameing schema.
>
> Signed-off-by: Mike Leach <mike.leach@linaro.org>
> ---
> .../testing/sysfs-bus-coresight-devices-etm4x | 183 +++++++++++-------
> 1 file changed, 115 insertions(+), 68 deletions(-)
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
> index 36258bc1b473..112c50ae9986 100644
> --- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
> +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
> @@ -1,4 +1,4 @@
> -What: /sys/bus/coresight/devices/<memory_map>.etm/enable_source
> +What: /sys/bus/coresight/devices/etm<N>/enable_source
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> @@ -8,82 +8,82 @@ Description: (RW) Enable/disable tracing on this specific trace entiry.
> of coresight components linking the source to the sink is
> configured and managed automatically by the coresight framework.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/cpu
> +What: /sys/bus/coresight/devices/etm<N>/cpu
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) The CPU this tracing entity is associated with.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/nr_pe_cmp
> +What: /sys/bus/coresight/devices/etm<N>/nr_pe_cmp
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of PE comparator inputs that are
> available for tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/nr_addr_cmp
> +What: /sys/bus/coresight/devices/etm<N>/nr_addr_cmp
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of address comparator pairs that are
> available for tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/nr_cntr
> +What: /sys/bus/coresight/devices/etm<N>/nr_cntr
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of counters that are available for
> tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/nr_ext_inp
> +What: /sys/bus/coresight/devices/etm<N>/nr_ext_inp
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates how many external inputs are implemented.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/numcidc
> +What: /sys/bus/coresight/devices/etm<N>/numcidc
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of Context ID comparators that are
> available for tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/numvmidc
> +What: /sys/bus/coresight/devices/etm<N>/numvmidc
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of VMID comparators that are available
> for tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/nrseqstate
> +What: /sys/bus/coresight/devices/etm<N>/nrseqstate
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of sequencer states that are
> implemented.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/nr_resource
> +What: /sys/bus/coresight/devices/etm<N>/nr_resource
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of resource selection pairs that are
> available for tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/nr_ss_cmp
> +What: /sys/bus/coresight/devices/etm<N>/nr_ss_cmp
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Indicates the number of single-shot comparator controls that
> are available for tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/reset
> +What: /sys/bus/coresight/devices/etm<N>/reset
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (W) Cancels all configuration on a trace unit and set it back
> to its boot configuration.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mode
> +What: /sys/bus/coresight/devices/etm<N>/mode
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> @@ -91,302 +91,349 @@ Description: (RW) Controls various modes supported by this ETM, for example
> P0 instruction tracing, branch broadcast, cycle counting and
> context ID tracing.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/pe
> +What: /sys/bus/coresight/devices/etm<N>/pe
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls which PE to trace.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/event
> +What: /sys/bus/coresight/devices/etm<N>/event
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls the tracing of arbitrary events from bank 0 to 3.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/event_instren
> +What: /sys/bus/coresight/devices/etm<N>/event_instren
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls the behavior of the events in bank 0 to 3.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/event_ts
> +What: /sys/bus/coresight/devices/etm<N>/event_ts
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls the insertion of global timestamps in the trace
> streams.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/syncfreq
> +What: /sys/bus/coresight/devices/etm<N>/syncfreq
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls how often trace synchronization requests occur.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/cyc_threshold
> +What: /sys/bus/coresight/devices/etm<N>/cyc_threshold
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Sets the threshold value for cycle counting.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/bb_ctrl
> +What: /sys/bus/coresight/devices/etm<N>/bb_ctrl
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls which regions in the memory map are enabled to
> use branch broadcasting.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/event_vinst
> +What: /sys/bus/coresight/devices/etm<N>/event_vinst
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls instruction trace filtering.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/s_exlevel_vinst
> +What: /sys/bus/coresight/devices/etm<N>/s_exlevel_vinst
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) In Secure state, each bit controls whether instruction
> tracing is enabled for the corresponding exception level.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/ns_exlevel_vinst
> +What: /sys/bus/coresight/devices/etm<N>/ns_exlevel_vinst
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) In non-secure state, each bit controls whether instruction
> tracing is enabled for the corresponding exception level.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/addr_idx
> +What: /sys/bus/coresight/devices/etm<N>/addr_idx
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Select which address comparator or pair (of comparators) to
> work with.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/addr_instdatatype
> +What: /sys/bus/coresight/devices/etm<N>/addr_instdatatype
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls what type of comparison the trace unit performs.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/addr_single
> +What: /sys/bus/coresight/devices/etm<N>/addr_single
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Used to setup single address comparator values.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/addr_range
> +What: /sys/bus/coresight/devices/etm<N>/addr_range
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Used to setup address range comparator values.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/seq_idx
> +What: /sys/bus/coresight/devices/etm<N>/seq_idx
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Select which sequensor.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/seq_state
> +What: /sys/bus/coresight/devices/etm<N>/seq_state
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Use this to set, or read, the sequencer state.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/seq_event
> +What: /sys/bus/coresight/devices/etm<N>/seq_event
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Moves the sequencer state to a specific state.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/seq_reset_event
> +What: /sys/bus/coresight/devices/etm<N>/seq_reset_event
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Moves the sequencer to state 0 when a programmed event
> occurs.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_idx
> +What: /sys/bus/coresight/devices/etm<N>/cntr_idx
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Select which counter unit to work with.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/cntrldvr
> +What: /sys/bus/coresight/devices/etm<N>/cntrldvr
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) This sets or returns the reload count value of the
> specific counter.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_val
> +What: /sys/bus/coresight/devices/etm<N>/cntr_val
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) This sets or returns the current count value of the
> specific counter.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_ctrl
> +What: /sys/bus/coresight/devices/etm<N>/cntr_ctrl
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls the operation of the selected counter.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/res_idx
> +What: /sys/bus/coresight/devices/etm<N>/res_idx
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Select which resource selection unit to work with.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/res_ctrl
> +What: /sys/bus/coresight/devices/etm<N>/res_ctrl
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Controls the selection of the resources in the trace unit.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_idx
> +What: /sys/bus/coresight/devices/etm<N>/ctxid_idx
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Select which context ID comparator to work with.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_pid
> +What: /sys/bus/coresight/devices/etm<N>/ctxid_pid
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Get/Set the context ID comparator value to trigger on.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_masks
> +What: /sys/bus/coresight/devices/etm<N>/ctxid_masks
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Mask for all 8 context ID comparator value
> registers (if implemented).
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/vmid_idx
> +What: /sys/bus/coresight/devices/etm<N>/vmid_idx
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Select which virtual machine ID comparator to work with.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/vmid_val
> +What: /sys/bus/coresight/devices/etm<N>/vmid_val
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Get/Set the virtual machine ID comparator value to
> trigger on.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/vmid_masks
> +What: /sys/bus/coresight/devices/etm<N>/vmid_masks
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (RW) Mask for all 8 virtual machine ID comparator value
> registers (if implemented).
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcoslsr
> +What: /sys/bus/coresight/devices/etm<N>/addr_exlevel_s_ns
> +Date: August 2019
> +KernelVersion: 5.4
> +Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> +Description: (RW) Set the Exception Level matching bits for secure and
> + non-secure exception levels.
> +
> +What: /sys/bus/coresight/devices/etm<N>/vinst_pe_cmp_start_stop
> +Date: August 2019
> +KernelVersion: 5.4
> +Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> +Description: (RW) Access the start stop control register for PE input
> + comparators.
> +
> +What: /sys/bus/coresight/devices/etm<N>/addr_cmp_view
> +Date: August 2019
> +KernelVersion: 5.4
> +Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> +Description: (R) Print the current settings for the selected address
> + comparator.
> +
> +What: /sys/bus/coresight/devices/etm<N>/sshot_idx
> +Date: August 2019
> +KernelVersion: 5.4
> +Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> +Description: (RW) Select the single shot control register to access.
> +
> +What: /sys/bus/coresight/devices/etm<N>/sshot_ctrl
> +Date: August 2019
> +KernelVersion: 5.4
> +Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> +Description: (RW) Access the selected single shot control register.
> +
> +What: /sys/bus/coresight/devices/etm<N>/sshot_status
> +Date: August 2019
> +KernelVersion: 5.4
> +Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> +Description: (R) Print the current value of the selected single shot
> + status register.
> +
> +What: /sys/bus/coresight/devices/etm<N>/sshot_pe_ctrl
> +Date: August 2019
> +KernelVersion: 5.4
> +Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> +Description: (RW) Access the selected single show PE comparator control
> + register.
> +

I didn't notice this in the first round - please split further. So one patch to
address the etm<N> and another for adding new features.

For patches 1, 3, 4 and 8:

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>

> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcoslsr
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the OS Lock Status Register (0x304).
> The value it taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpdcr
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpdcr
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Power Down Control Register
> (0x310). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpdsr
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpdsr
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Power Down Status Register
> (0x314). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trclsr
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trclsr
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the SW Lock Status Register
> (0xFB4). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcauthstatus
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcauthstatus
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Authentication Status Register
> (0xFB8). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcdevid
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcdevid
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Device ID Register
> (0xFC8). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcdevtype
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcdevtype
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Device Type Register
> (0xFCC). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr0
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr0
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Peripheral ID0 Register
> (0xFE0). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr1
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr1
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Peripheral ID1 Register
> (0xFE4). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr2
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr2
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Peripheral ID2 Register
> (0xFE8). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr3
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr3
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the Peripheral ID3 Register
> (0xFEC). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcconfig
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trcconfig
> Date: February 2016
> KernelVersion: 4.07
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the trace configuration register
> (0x010) as currently set by SW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trctraceid
> +What: /sys/bus/coresight/devices/etm<N>/mgmt/trctraceid
> Date: February 2016
> KernelVersion: 4.07
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Print the content of the trace ID register (0x040).
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr0
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr0
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Returns the tracing capabilities of the trace unit (0x1E0).
> The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr1
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr1
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Returns the tracing capabilities of the trace unit (0x1E4).
> The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr2
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr2
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> @@ -394,7 +441,7 @@ Description: (R) Returns the maximum size of the data value, data address,
> VMID, context ID and instuction address in the trace unit
> (0x1E8). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr3
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr3
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> @@ -403,42 +450,42 @@ Description: (R) Returns the value associated with various resources
> architecture specification for more details (0x1E8).
> The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr4
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr4
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Returns how many resources the trace unit supports (0x1F0).
> The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr5
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr5
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Returns how many resources the trace unit supports (0x1F4).
> The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr8
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr8
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Returns the maximum speculation depth of the instruction
> trace stream. (0x180). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr9
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr9
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Returns the number of P0 right-hand keys that the trace unit
> can use (0x184). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr10
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr10
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> Description: (R) Returns the number of P1 right-hand keys that the trace unit
> can use (0x188). The value is taken directly from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr11
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr11
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> @@ -446,7 +493,7 @@ Description: (R) Returns the number of special P1 right-hand keys that the
> trace unit can use (0x18C). The value is taken directly from
> the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr12
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr12
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> @@ -454,7 +501,7 @@ Description: (R) Returns the number of conditional P1 right-hand keys that
> the trace unit can use (0x190). The value is taken directly
> from the HW.
>
> -What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr13
> +What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr13
> Date: April 2015
> KernelVersion: 4.01
> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
> --
> 2.17.1