drm/amd/display: implement DPMS DTN test v2

[why]
Existing DTN infrastructure in driver is hacky.  It uses implicit log
names, and also incorrect escape ID.

[how]
- Implement using generic DTN escape ID.
- Move file logging functionality from driver to to script; driver now outputs to string/buffer
- Move HWSS debug functionality to separate c file
- Add debug functionalty for per-block logging as CSV
- Add pretty print in python
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/Makefile

@@ -22,7 +22,7 @@
 #
 # Makefile for DCN.
 
-DCN10 = dcn10_resource.o dcn10_ipp.o dcn10_hw_sequencer.o \
+DCN10 = dcn10_resource.o dcn10_ipp.o dcn10_hw_sequencer.o dcn10_hw_sequencer_debug.o \
 		dcn10_dpp.o dcn10_opp.o dcn10_optc.o \
 		dcn10_hubp.o dcn10_mpc.o \
 		dcn10_dpp_dscl.o dcn10_dpp_cm.o dcn10_cm_common.o \

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

@@ -71,7 +71,6 @@ void print_microsec(struct dc_context *dc_ctx, uint32_t ref_cycle)
 			us_x10 % frac);
 }
 
-
 static void log_mpc_crc(struct dc *dc)
 {
 	struct dc_context *dc_ctx = dc->ctx;
@@ -2712,6 +2711,7 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
 	.setup_stereo = dcn10_setup_stereo,
 	.set_avmute = dce110_set_avmute,
 	.log_hw_state = dcn10_log_hw_state,
+	.get_hw_state = dcn10_get_hw_state,
 	.wait_for_mpcc_disconnect = dcn10_wait_for_mpcc_disconnect,
 	.ready_shared_resources = ready_shared_resources,
 	.optimize_shared_resources = optimize_shared_resources,

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h

@@ -46,4 +46,9 @@ void dcn10_program_pipe(
 		struct pipe_ctx *pipe_ctx,
 		struct dc_state *context);
 
+void dcn10_get_hw_state(
+		struct dc *dc,
+		char *pBuf, unsigned int bufSize,
+		unsigned int mask);
+
 #endif /* __DC_HWSS_DCN10_H__ */

drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h

@@ -203,6 +203,7 @@ struct hw_sequencer_funcs {
 	void (*set_avmute)(struct pipe_ctx *pipe_ctx, bool enable);
 
 	void (*log_hw_state)(struct dc *dc);
+	void (*get_hw_state)(struct dc *dc, char *pBuf, unsigned int bufSize, unsigned int mask);
 
 	void (*wait_for_mpcc_disconnect)(struct dc *dc,
 			struct resource_pool *res_pool,