RE: [PATCH 26/33] arm_mpam: Add mpam_msmon_read() to read monitor value

[Shaopeng Tan (Fujitsu)]

> From: James Morse <james.morse@xxxxxxx>
> 
> Reading a monitor involves configuring what you want to monitor, and reading
> the value. Components made up of multiple MSC may need values from each
> MSC. MSCs may take time to configure, returning 'not ready'.
> The maximum 'not ready' time should have been provided by firmware.
> 
> Add mpam_msmon_read() to hide all this. If (one of) the MSC returns not ready,
> then wait the full timeout value before trying again.
> 
> CC: Shanker Donthineni <sdonthineni@xxxxxxxxxx>
> Cc: Shaopeng Tan (Fujitsu) <tan.shaopeng@xxxxxxxxxxx>
> Reviewed-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>
> Tested-by: Shaopeng Tan <tan.shaopeng@xxxxxxxxxxxxxx>
> Tested-by: Peter Newman <peternewman@xxxxxxxxxx>
> Signed-off-by: James Morse <james.morse@xxxxxxx>
> Signed-off-by: Ben Horgan <ben.horgan@xxxxxxx>

Reviewed-by: Shaopeng Tan <tan.shaopeng@xxxxxxxxxxxxxx>