From 90d268741f74f7852ebc295c96212c6e992b2078 Mon Sep 17 00:00:00 2001 From: Robin Singh Date: Thu, 22 Aug 2019 14:42:49 -0400 Subject: [PATCH] drm/amd/display: Added pixel dynamic expansion control. [Why] To compare the crc of the framebuffer data at input of display pipeline with the crc of the otg, we need to disable pixel formatter's dynamic expansion feature during crc capture and keep it enable in the normal operation. [HOW] Expose a new interface in DM and dc for pixel formatter (fmt dynamic bitdepth expansion control). Interface control the FMT_DYNAMIC_EXP_EN bit, during crc capture keep it disabled. Signed-off-by: Robin Singh Reviewed-by: Harry Wentland Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- .../drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 9 ++++++-- drivers/gpu/drm/amd/display/dc/core/dc.c | 21 +++++++++++++++++++ drivers/gpu/drm/amd/display/dc/dc_hw_types.h | 5 +++++ drivers/gpu/drm/amd/display/dc/dc_stream.h | 3 +++ .../gpu/drm/amd/display/dc/dcn10/dcn10_opp.c | 3 +++ drivers/gpu/drm/amd/display/dc/inc/hw/opp.h | 1 + 6 files changed, 40 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c index a549c7c717dd..eaad9099bc0b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c @@ -122,11 +122,16 @@ int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc, } /* Configure dithering */ - if (!dm_need_crc_dither(source)) + if (!dm_need_crc_dither(source)) { dc_stream_set_dither_option(stream_state, DITHER_OPTION_TRUN8); - else + dc_stream_set_dyn_expansion(stream_state->ctx->dc, stream_state, + DYN_EXPANSION_DISABLE); + } else { dc_stream_set_dither_option(stream_state, DITHER_OPTION_DEFAULT); + dc_stream_set_dyn_expansion(stream_state->ctx->dc, stream_state, + DYN_EXPANSION_AUTO); + } unlock: mutex_unlock(&adev->dm.dc_lock); diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index f24f82b68694..a56a989ee607 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -411,6 +411,27 @@ bool dc_stream_get_crc(struct dc *dc, struct dc_stream_state *stream, return false; } +void dc_stream_set_dyn_expansion(struct dc *dc, struct dc_stream_state *stream, + enum dc_dynamic_expansion option) +{ + /* OPP FMT dyn expansion updates*/ + int i = 0; + struct pipe_ctx *pipe_ctx; + + for (i = 0; i < MAX_PIPES; i++) { + if (dc->current_state->res_ctx.pipe_ctx[i].stream + == stream) { + pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i]; + pipe_ctx->stream_res.opp->dyn_expansion = option; + pipe_ctx->stream_res.opp->funcs->opp_set_dyn_expansion( + pipe_ctx->stream_res.opp, + COLOR_SPACE_YCBCR601, + stream->timing.display_color_depth, + stream->signal); + } + } +} + void dc_stream_set_dither_option(struct dc_stream_state *stream, enum dc_dither_option option) { diff --git a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h index 2869b26d966a..e0856bb8511f 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h @@ -578,6 +578,11 @@ enum dc_quantization_range { QUANTIZATION_RANGE_LIMITED }; +enum dc_dynamic_expansion { + DYN_EXPANSION_AUTO, + DYN_EXPANSION_DISABLE +}; + /* XFM */ /* used in struct dc_plane_state */ diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index 3c061d4f214f..fdb6adc37857 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -451,6 +451,9 @@ void dc_stream_set_static_screen_events(struct dc *dc, int num_streams, const struct dc_static_screen_events *events); +void dc_stream_set_dyn_expansion(struct dc *dc, struct dc_stream_state *stream, + enum dc_dynamic_expansion option); + void dc_stream_set_dither_option(struct dc_stream_state *stream, enum dc_dither_option option); diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c index 02c8a3e0b533..0a9ad692f541 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c @@ -240,6 +240,9 @@ void opp1_set_dyn_expansion( FMT_DYNAMIC_EXP_EN, 0, FMT_DYNAMIC_EXP_MODE, 0); + if (opp->dyn_expansion == DYN_EXPANSION_DISABLE) + return; + /*00 - 10-bit -> 12-bit dynamic expansion*/ /*01 - 8-bit -> 12-bit dynamic expansion*/ if (signal == SIGNAL_TYPE_HDMI_TYPE_A || diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/opp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/opp.h index 957e9047381a..18def2b6fafe 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/opp.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/opp.h @@ -208,6 +208,7 @@ struct output_pixel_processor { struct mpc_tree mpc_tree_params; bool mpcc_disconnect_pending[MAX_PIPES]; const struct opp_funcs *funcs; + uint32_t dyn_expansion; }; enum fmt_stereo_action { -- 2.30.2