mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 17:26:38 +07:00
ad352acbb9
The sysFS "status" entry conveys a wealth of information about the status of the HW but goes agains the sysFS rule of one topic per file. This patch rectify the situation by adding read-only entries for each of the field formaly displayed by "status". The ABI documentation is kept up to date. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
80 lines
3.2 KiB
Plaintext
80 lines
3.2 KiB
Plaintext
What: /sys/bus/coresight/devices/<memory_map>.etb/enable_sink
|
|
Date: November 2014
|
|
KernelVersion: 3.19
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (RW) Add/remove a sink from a trace path. There can be multiple
|
|
source for a single sink.
|
|
ex: echo 1 > /sys/bus/coresight/devices/20010000.etb/enable_sink
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/trigger_cntr
|
|
Date: November 2014
|
|
KernelVersion: 3.19
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (RW) Disables write access to the Trace RAM by stopping the
|
|
formatter after a defined number of words have been stored
|
|
following the trigger event. The number of 32-bit words written
|
|
into the Trace RAM following the trigger event is equal to the
|
|
value stored in this register+1 (from ARM ETB-TRM).
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rdp
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Defines the depth, in words, of the trace RAM in powers of
|
|
2. The value is read directly from HW register RDP, 0x004.
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/sts
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Shows the value held by the ETB status register. The value
|
|
is read directly from HW register STS, 0x00C.
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rrp
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Shows the value held by the ETB RAM Read Pointer register
|
|
that is used to read entries from the Trace RAM over the APB
|
|
interface. The value is read directly from HW register RRP,
|
|
0x014.
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rwp
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Shows the value held by the ETB RAM Write Pointer register
|
|
that is used to sets the write pointer to write entries from
|
|
the CoreSight bus into the Trace RAM. The value is read directly
|
|
from HW register RWP, 0x018.
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/trg
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Similar to "trigger_cntr" above except that this value is
|
|
read directly from HW register TRG, 0x01C.
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/ctl
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Shows the value held by the ETB Control register. The value
|
|
is read directly from HW register CTL, 0x020.
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/ffsr
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Shows the value held by the ETB Formatter and Flush Status
|
|
register. The value is read directly from HW register FFSR,
|
|
0x300.
|
|
|
|
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/ffcr
|
|
Date: March 2016
|
|
KernelVersion: 4.7
|
|
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
Description: (R) Shows the value held by the ETB Formatter and Flush Control
|
|
register. The value is read directly from HW register FFCR,
|
|
0x304.
|