drm/amd/display: Add DSC parameters logging to debugfs

[why]
Need to add new parameters to debugfs logging so
we will know what parameters DSC is using for
debug purposes. So we are adding a read function
in debugfs to read DSC status registers
Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c

@@ -157,6 +157,11 @@ static void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_ds
 	REG_GET(DSC_TOP_CONTROL, DSC_CLOCK_EN, &s->dsc_clock_en);
 	REG_GET(DSCC_PPS_CONFIG3, SLICE_WIDTH, &s->dsc_slice_width);
 	REG_GET(DSCC_PPS_CONFIG1, BITS_PER_PIXEL, &s->dsc_bytes_per_pixel);
+	REG_GET(DSCC_PPS_CONFIG3, SLICE_HEIGHT, &s->dsc_slice_height);
+	REG_GET(DSCC_PPS_CONFIG1, CHUNK_SIZE, &s->dsc_chunk_size);
+	REG_GET(DSCC_PPS_CONFIG2, PIC_WIDTH, &s->dsc_pic_width);
+	REG_GET(DSCC_PPS_CONFIG2, PIC_HEIGHT, &s->dsc_pic_height);
+	REG_GET(DSCC_PPS_CONFIG7, SLICE_BPG_OFFSET, &s->dsc_slice_bpg_offset);
 }
 
 

drivers/gpu/drm/amd/display/dc/inc/hw/dsc.h

@@ -56,6 +56,11 @@ struct dcn_dsc_state {
 	uint32_t dsc_clock_en;
 	uint32_t dsc_slice_width;
 	uint32_t dsc_bytes_per_pixel;
+	uint32_t dsc_slice_height;
+	uint32_t dsc_pic_width;
+	uint32_t dsc_pic_height;
+	uint32_t dsc_slice_bpg_offset;
+	uint32_t dsc_chunk_size;
 };