[PATCH 11/16] drm/amd/display: fix zero value for APU watermark_c
Aurabindo Pillai
aurabindo.pillai at amd.com
Wed Mar 19 17:55:16 UTC 2025
From: Charlene Liu <Charlene.Liu at amd.com>
[why]
the guard of is_apu not in sync, caused no watermark_c output.
Reviewed-by: Ovidiu Bunea <ovidiu.bunea at amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu at amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
---
drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c
index 939ee0708bd2..359a0337d617 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c
@@ -661,7 +661,10 @@ static bool dml2_validate_and_build_resource(const struct dc *in_dc, struct dc_s
dml2_copy_clocks_to_dc_state(&out_clks, context);
dml2_extract_watermark_set(&context->bw_ctx.bw.dcn.watermarks.a, &dml2->v20.dml_core_ctx);
dml2_extract_watermark_set(&context->bw_ctx.bw.dcn.watermarks.b, &dml2->v20.dml_core_ctx);
- memcpy(&context->bw_ctx.bw.dcn.watermarks.c, &dml2->v20.g6_temp_read_watermark_set, sizeof(context->bw_ctx.bw.dcn.watermarks.c));
+ if (context->streams[0]->sink->link->dc->caps.is_apu)
+ dml2_extract_watermark_set(&context->bw_ctx.bw.dcn.watermarks.c, &dml2->v20.dml_core_ctx);
+ else
+ memcpy(&context->bw_ctx.bw.dcn.watermarks.c, &dml2->v20.g6_temp_read_watermark_set, sizeof(context->bw_ctx.bw.dcn.watermarks.c));
dml2_extract_watermark_set(&context->bw_ctx.bw.dcn.watermarks.d, &dml2->v20.dml_core_ctx);
dml2_extract_writeback_wm(context, &dml2->v20.dml_core_ctx);
//copy for deciding zstate use
--
2.49.0
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