[PATCH v10 1/2] perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver

[Jiucheng Xu]

> What about this description below?
>
> ```
> Add support for Amlogic Meson G12 Series SOC - DDR bandwidth PMU driver
> framework and interfaces. The PMU can not only monitor the total DDR
> bandwidth, but also individual IP module bandwidth.
> ```
Thanks, Your description looks like much better. I agree with you.
>> Example usage:
>>
>>   $ perf stat -a -e meson_ddr_bw/total_rw_bytes/ -I 1000 sleep 10
>>
>> - or -
>>
>>   $ perf stat -a -e \
>>     meson_ddr_bw/total_rw_bytes/,\
>>     meson_ddr_bw/chan_1_rw_bytes,arm=1/ -I 1000 \
>>     sleep 10
>>
>> g12 SoC support 4 channels to monitor DDR bandwidth
>> simultaneously. Each channel can monitor up to 4 IP modules
>> simultaneously.
>>
>> For Instance, If you want to get the sum of DDR bandwidth
>> from CPU, GPU, USB3.0 and VDEC. You can use the following
>> command parameters to display.
>>
>>   $ perf stat -a -e \
>>     meson_ddr_bw/chan_2_rw_bytes,arm=1,gpu=1,usb3_0=1,nna=1/ -I 1000 \
>>     sleep 10
>>
>> Other events are supported, and advertised via perf list.
> The demo example should have been outside the patch description, though
> (more appropriate documentation as in patch [2/2]).
>
> Thanks.
Okay, I will modify it in the next version.

-- 
Thanks,
Jiucheng