| Message ID | 1669018873-4718-1-git-send-email-quic_taozha@quicinc.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add support to configure TPDM DSB subunit | expand |
On 21/11/2022 08:21, Tao Zhang wrote: > Introduction of TPDM DSB subunit > DSB subunit is responsible for creating a dataset element, and is also > optionally responsible for packing it to fit multiple elements on a > single ATB transfer if possible in the configuration. The TPDM Core > Datapath requests timestamps be stored by the TPDA and then delivering > ATB sized data (depending on ATB width and element size, this could > be smaller or larger than a dataset element) to the ATB Mast FSM. > > The DSB subunit must be configured prior to enablement. This series > adds support for TPDM to configure the configure DSB subunit. > > Once this series patches are applied properly, the new tpdm nodes for > should be observed at the tpdm path /sys/bus/coresight/devices/tpdm* > which supports DSB subunit. > e.g. > /sys/devices/platform/soc@0/69d0000.tpdm/tpdm0#ls -l | grep dsb > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_edge_ctrl > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_edge_ctrl_mask > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_mode > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_mask > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_ts > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_type > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_val > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_patt_mask > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_patt_val > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_ts > -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_type > > We can use the commands are similar to the below to configure the > TPDMs which support DSB subunit. Enable coresight sink first. > echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink > echo 1 > /sys/bus/coresight/devices/tpdm0/reset > echo 0x3 0x3 0x1 > /sys/bus/coresight/devices/tpdm0/dsb_edge_ctrl_mask > echo 0x6d 0x6d 0 > /sys/bus/coresight/devices/tpdm0/dsb_edge_ctrl > echo 1 > /sys/bus/coresight/devices/tpdm0/dsb_patt_ts > echo 1 > /sys/bus/coresight/devices/tpdm0/dsb_patt_type > echo 0 > /sys/bus/coresight/devices/tpdm0/dsb_trig_ts > echo 0 0xFFFFFFFF > /sys/bus/coresight/devices/tpdm0/dsb_patt_mask > echo 0 0xFFFFFFFF > /sys/bus/coresight/devices/tpdm0/dsb_trig_patt_val > > This series applies to coresight/next > https://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git?h=next Does it ? > This patch series depends on patch series "[v12,0/9] Coresight: Add > support for TPDM and TPDA" > https://patchwork.kernel.org/project/linux-arm-kernel/cover/20221114144027.14365-1-quic_jinlmao@quicinc.com/ > And the CoreSight Dynamice Trace ID series too. Change log please Suzuki
On 21/11/2022 10:21, Suzuki Kuruppassery Poulose wrote: > On 21/11/2022 08:21, Tao Zhang wrote: >> Introduction of TPDM DSB subunit >> DSB subunit is responsible for creating a dataset element, and is also >> optionally responsible for packing it to fit multiple elements on a >> single ATB transfer if possible in the configuration. The TPDM Core >> Datapath requests timestamps be stored by the TPDA and then delivering >> ATB sized data (depending on ATB width and element size, this could >> be smaller or larger than a dataset element) to the ATB Mast FSM. >> >> The DSB subunit must be configured prior to enablement. This series >> adds support for TPDM to configure the configure DSB subunit. >> >> Once this series patches are applied properly, the new tpdm nodes for >> should be observed at the tpdm path /sys/bus/coresight/devices/tpdm* >> which supports DSB subunit. >> e.g. >> /sys/devices/platform/soc@0/69d0000.tpdm/tpdm0#ls -l | grep dsb >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_edge_ctrl >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_edge_ctrl_mask >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_mode >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_mask >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_ts >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_type >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_patt_val >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_patt_mask >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_patt_val >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_ts >> -rw-r--r-- 1 root root 4096 Jan 1 00:01 dsb_trig_type >> >> We can use the commands are similar to the below to configure the >> TPDMs which support DSB subunit. Enable coresight sink first. >> echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink >> echo 1 > /sys/bus/coresight/devices/tpdm0/reset >> echo 0x3 0x3 0x1 > /sys/bus/coresight/devices/tpdm0/dsb_edge_ctrl_mask >> echo 0x6d 0x6d 0 > /sys/bus/coresight/devices/tpdm0/dsb_edge_ctrl >> echo 1 > /sys/bus/coresight/devices/tpdm0/dsb_patt_ts >> echo 1 > /sys/bus/coresight/devices/tpdm0/dsb_patt_type >> echo 0 > /sys/bus/coresight/devices/tpdm0/dsb_trig_ts >> echo 0 0xFFFFFFFF > /sys/bus/coresight/devices/tpdm0/dsb_patt_mask >> echo 0 0xFFFFFFFF > /sys/bus/coresight/devices/tpdm0/dsb_trig_patt_val >> >> This series applies to coresight/next >> https://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git?h=next > > Does it ? > >> This patch series depends on patch series "[v12,0/9] Coresight: Add >> support for TPDM and TPDA" >> https://patchwork.kernel.org/project/linux-arm-kernel/cover/20221114144027.14365-1-quic_jinlmao@quicinc.com/ >> > > And the CoreSight Dynamice Trace ID series too. > > Change log please > Also, more importantly, as requested previousl please host a tree with all the dependencies applied including this series. It is hard to review looking all the way back to a dependent series back and forth. Or we could shelve this until the dependencies are merged/queued. Suzuki