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From c49a9291e75a1396363d95e5bde011d35f913f29 Mon Sep 17 00:00:00 2001
From: Shirish S <shirish.s@amd.com>
Date: Wed, 28 Mar 2018 12:22:22 +0530
Subject: [PATCH 4180/5725] drm/amd/display: remove dummy is_blanked() to
optimise boot time
is_blanked() hook is a dummy one for underlay pipe, hence
when called, it loops for ~300ms at boot.
This patch removes this dummy call and adds missing checks.
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c | 3 +++
drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c | 3 ++-
drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c | 7 -------
3 files changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c
index ebc96b7..481f692 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c
@@ -230,6 +230,9 @@ bool hwss_wait_for_blank_complete(
{
int counter;
+ /* Not applicable if the pipe is not primary, save 300ms of boot time */
+ if (!tg->funcs->is_blanked)
+ return true;
for (counter = 0; counter < 100; counter++) {
if (tg->funcs->is_blanked(tg))
break;
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c
index 4877243..0275d6d 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c
@@ -53,7 +53,8 @@ void dce_pipe_control_lock(struct dc *dc,
struct dce_hwseq *hws = dc->hwseq;
/* Not lock pipe when blank */
- if (lock && pipe->stream_res.tg->funcs->is_blanked(pipe->stream_res.tg))
+ if (lock && pipe->stream_res.tg->funcs->is_blanked &&
+ pipe->stream_res.tg->funcs->is_blanked(pipe->stream_res.tg))
return;
val = REG_GET_4(BLND_V_UPDATE_LOCK[pipe->stream_res.tg->inst],
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c
index 8ad0481..a3cef60 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c
@@ -648,12 +648,6 @@ static void dce110_timing_generator_v_disable_vga(
return;
}
-static bool dce110_tg_v_is_blanked(struct timing_generator *tg)
-{
- /* Signal comes from the primary pipe, underlay is never blanked. */
- return false;
-}
-
/** ********************************************************************************************
*
* DCE11 Timing Generator Constructor / Destructor
@@ -670,7 +664,6 @@ static const struct timing_generator_funcs dce110_tg_v_funcs = {
.set_early_control = dce110_timing_generator_v_set_early_control,
.wait_for_state = dce110_timing_generator_v_wait_for_state,
.set_blank = dce110_timing_generator_v_set_blank,
- .is_blanked = dce110_tg_v_is_blanked,
.set_colors = dce110_timing_generator_v_set_colors,
.set_overscan_blank_color =
dce110_timing_generator_v_set_overscan_color_black,
--
2.7.4
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