cxl: Rework the implementation of cxl_stop_trace_psl9()

[Michael Ellerman]

On Wed, 2017-10-11 at 12:30:20 UTC, Vaibhav Jain wrote:
> Presently the PSL9 specific cxl_stop_trace_psl9() only stops the RX0
> traces on the CXL adapter when a PSL error irq is triggered. The patch
> updates the function to stop all the traces arrays and move them to
> the FIN state. The implementation issues the mmio to TRACECFG register
> to stop the trace array iff it already not in FIN state. This prevents
> the issue of trace data being reset in case of multiple stop mmio
> issued for a single trace array.
> 
> Also the patch does some refactoring of existing cxl_stop_trace_psl9()
> and cxl_stop_trace_psl8() functions by moving them to 'pci.c' from
> 'debugfs.c' file and marking them as static.
> 
> Signed-off-by: Vaibhav Jain <vaibhav at linux.vnet.ibm.com>
> Acked-by: Frederic Barrat <fbarrat at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/cbb55eeb49b116bb3880137661ad8c

cheers