Joakim Zhang 11abb4e87b
perf/imx_ddr: Add support for PMU in DB (system interconnects) ...
There is a PMU in DB, which has the same function with PMU in DDR
subsystem, the difference is PMU in DB only supports cycles, axid-read,
axid-write events.
e.g.
perf stat -a -e imx8_db0/axid-read,axi_mask=0xMMMM,axi_id=0xDDDD,axi_port=0xPP,axi_channel=0xH/ cmd
perf stat -a -e imx8_db0/axid-write,axi_mask=0xMMMM,axi_id=0xDDDD,axi_port=0xPP,axi_channel=0xH/ cmd
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com >
Signed-off-by: Frank Li <Frank.Li@nxp.com >
Signed-off-by: Will Deacon <will@kernel.org >
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11abb4e87b