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Message-ID: <20231107121837.3759358-4-sashal@kernel.org>
Date: Tue, 7 Nov 2023 07:16:06 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Alvin Lee <Alvin.Lee2@....com>, Samson Tam <samson.tam@....com>,
Stylon Wang <stylon.wang@....com>,
Daniel Wheeler <daniel.wheeler@....com>,
Alex Deucher <alexander.deucher@....com>,
Sasha Levin <sashal@...nel.org>, harry.wentland@....com,
sunpeng.li@....com, Rodrigo.Siqueira@....com,
christian.koenig@....com, Xinhui.Pan@....com, airlied@...il.com,
daniel@...ll.ch, alvin.lee2@....com, jun.lei@....com,
Qingqing.Zhuo@....com, wenjing.liu@....com, aric.cyr@....com,
chiawen.huang@....com, hamza.mahfooz@....com,
Wesley.Chalmers@....com, mdaenzer@...hat.com,
Ilya.Bakoulin@....com, moadhuri@....com, syedsaaem.rizvi@....com,
dillon.varone@....com, dmytro.laktyushkin@....com,
chiahsuan.chung@....com, danny.wang@....com, george.shen@....com,
arthurgrillo@...eup.net, aurabindo.pillai@....com,
hanghong.ma@....com, amd-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.6 04/40] drm/amd/display: Blank phantom OTG before enabling
From: Alvin Lee <Alvin.Lee2@....com>
[ Upstream commit e87a6c5b7780b5f423797351eb586ed96cc6d151 ]
[Description]
Before enabling the phantom OTG for an update we
must enable DPG to avoid underflow.
Reviewed-by: Samson Tam <samson.tam@....com>
Acked-by: Stylon Wang <stylon.wang@....com>
Signed-off-by: Alvin Lee <Alvin.Lee2@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 50 +------------------
.../drm/amd/display/dc/dcn20/dcn20_hwseq.c | 10 +++-
.../drm/amd/display/dc/dcn32/dcn32_hwseq.c | 46 +++++++++++++++++
.../drm/amd/display/dc/dcn32/dcn32_hwseq.h | 5 ++
.../gpu/drm/amd/display/dc/dcn32/dcn32_init.c | 1 +
.../gpu/drm/amd/display/dc/inc/hw_sequencer.h | 5 ++
6 files changed, 68 insertions(+), 49 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index d08e60dff46de..3b9d6fa50d170 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1069,53 +1069,6 @@ static void apply_ctx_interdependent_lock(struct dc *dc,
}
}
-static void phantom_pipe_blank(
- struct dc *dc,
- struct timing_generator *tg,
- int width,
- int height)
-{
- struct dce_hwseq *hws = dc->hwseq;
- enum dc_color_space color_space;
- struct tg_color black_color = {0};
- struct output_pixel_processor *opp = NULL;
- uint32_t num_opps, opp_id_src0, opp_id_src1;
- uint32_t otg_active_width, otg_active_height;
- uint32_t i;
-
- /* program opp dpg blank color */
- color_space = COLOR_SPACE_SRGB;
- color_space_to_black_color(dc, color_space, &black_color);
-
- otg_active_width = width;
- otg_active_height = height;
-
- /* get the OPTC source */
- tg->funcs->get_optc_source(tg, &num_opps, &opp_id_src0, &opp_id_src1);
- ASSERT(opp_id_src0 < dc->res_pool->res_cap->num_opp);
-
- for (i = 0; i < dc->res_pool->res_cap->num_opp; i++) {
- if (dc->res_pool->opps[i] != NULL && dc->res_pool->opps[i]->inst == opp_id_src0) {
- opp = dc->res_pool->opps[i];
- break;
- }
- }
-
- if (opp && opp->funcs->opp_set_disp_pattern_generator)
- opp->funcs->opp_set_disp_pattern_generator(
- opp,
- CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
- CONTROLLER_DP_COLOR_SPACE_UDEFINED,
- COLOR_DEPTH_UNDEFINED,
- &black_color,
- otg_active_width,
- otg_active_height,
- 0);
-
- if (tg->funcs->is_tg_enabled(tg))
- hws->funcs.wait_for_blank_complete(opp);
-}
-
static void dc_update_viusal_confirm_color(struct dc *dc, struct dc_state *context, struct pipe_ctx *pipe_ctx)
{
if (dc->ctx->dce_version >= DCN_VERSION_1_0) {
@@ -1206,7 +1159,8 @@ static void disable_dangling_plane(struct dc *dc, struct dc_state *context)
main_pipe_width = old_stream->mall_stream_config.paired_stream->dst.width;
main_pipe_height = old_stream->mall_stream_config.paired_stream->dst.height;
- phantom_pipe_blank(dc, tg, main_pipe_width, main_pipe_height);
+ if (dc->hwss.blank_phantom)
+ dc->hwss.blank_phantom(dc, tg, main_pipe_width, main_pipe_height);
tg->funcs->enable_crtc(tg);
}
}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index aeadc587433fd..a2e1ca3b93e86 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1830,8 +1830,16 @@ void dcn20_program_front_end_for_ctx(
dc->current_state->res_ctx.pipe_ctx[i].stream->mall_stream_config.type == SUBVP_PHANTOM) {
struct timing_generator *tg = dc->current_state->res_ctx.pipe_ctx[i].stream_res.tg;
- if (tg->funcs->enable_crtc)
+ if (tg->funcs->enable_crtc) {
+ if (dc->hwss.blank_phantom) {
+ int main_pipe_width, main_pipe_height;
+
+ main_pipe_width = dc->current_state->res_ctx.pipe_ctx[i].stream->mall_stream_config.paired_stream->dst.width;
+ main_pipe_height = dc->current_state->res_ctx.pipe_ctx[i].stream->mall_stream_config.paired_stream->dst.height;
+ dc->hwss.blank_phantom(dc, tg, main_pipe_width, main_pipe_height);
+ }
tg->funcs->enable_crtc(tg);
+ }
}
}
/* OTG blank before disabling all front ends */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
index 680e7fa8d18ab..cae5e1e68c860 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
@@ -1573,3 +1573,49 @@ void dcn32_init_blank(
if (opp)
hws->funcs.wait_for_blank_complete(opp);
}
+
+void dcn32_blank_phantom(struct dc *dc,
+ struct timing_generator *tg,
+ int width,
+ int height)
+{
+ struct dce_hwseq *hws = dc->hwseq;
+ enum dc_color_space color_space;
+ struct tg_color black_color = {0};
+ struct output_pixel_processor *opp = NULL;
+ uint32_t num_opps, opp_id_src0, opp_id_src1;
+ uint32_t otg_active_width, otg_active_height;
+ uint32_t i;
+
+ /* program opp dpg blank color */
+ color_space = COLOR_SPACE_SRGB;
+ color_space_to_black_color(dc, color_space, &black_color);
+
+ otg_active_width = width;
+ otg_active_height = height;
+
+ /* get the OPTC source */
+ tg->funcs->get_optc_source(tg, &num_opps, &opp_id_src0, &opp_id_src1);
+ ASSERT(opp_id_src0 < dc->res_pool->res_cap->num_opp);
+
+ for (i = 0; i < dc->res_pool->res_cap->num_opp; i++) {
+ if (dc->res_pool->opps[i] != NULL && dc->res_pool->opps[i]->inst == opp_id_src0) {
+ opp = dc->res_pool->opps[i];
+ break;
+ }
+ }
+
+ if (opp && opp->funcs->opp_set_disp_pattern_generator)
+ opp->funcs->opp_set_disp_pattern_generator(
+ opp,
+ CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
+ CONTROLLER_DP_COLOR_SPACE_UDEFINED,
+ COLOR_DEPTH_UNDEFINED,
+ &black_color,
+ otg_active_width,
+ otg_active_height,
+ 0);
+
+ if (tg->funcs->is_tg_enabled(tg))
+ hws->funcs.wait_for_blank_complete(opp);
+}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h
index 2d2628f31bed7..616d5219119e9 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h
@@ -115,4 +115,9 @@ void dcn32_init_blank(
struct dc *dc,
struct timing_generator *tg);
+void dcn32_blank_phantom(struct dc *dc,
+ struct timing_generator *tg,
+ int width,
+ int height);
+
#endif /* __DC_HWSS_DCN32_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
index c7417147dff19..eb4227926006a 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
@@ -115,6 +115,7 @@ static const struct hw_sequencer_funcs dcn32_funcs = {
.update_phantom_vp_position = dcn32_update_phantom_vp_position,
.update_dsc_pg = dcn32_update_dsc_pg,
.apply_update_flags_for_phantom = dcn32_apply_update_flags_for_phantom,
+ .blank_phantom = dcn32_blank_phantom,
};
static const struct hwseq_private_funcs dcn32_private_funcs = {
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index 02ff99f7bec2b..7a702e216e530 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -388,6 +388,11 @@ struct hw_sequencer_funcs {
void (*z10_restore)(const struct dc *dc);
void (*z10_save_init)(struct dc *dc);
+ void (*blank_phantom)(struct dc *dc,
+ struct timing_generator *tg,
+ int width,
+ int height);
+
void (*update_visual_confirm_color)(struct dc *dc,
struct pipe_ctx *pipe_ctx,
int mpcc_id);
--
2.42.0
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