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From 1023f9edf5ba22fb87f37d5178322de4b6a9a7b9 Mon Sep 17 00:00:00 2001
From: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Date: Fri, 1 Feb 2019 07:31:47 -0500
Subject: [PATCH 1298/2940] drm/amd/display: Allow for plane-less resource
reservation
This change changes dc add plane logic to allow plane-less resource
reservation (pipe split).
If a free pipe_ctx (no plane_state attached) is the head pipe, and is
found with a bottom pipe attached, assign the plane to add on the bottom
pipe.
In addition, prepend dcn10 to dcn10-specific reset_back_end_for_pipe
and reset_hw_ctx_wrap
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++
.../gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 11 +++++------
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 7cd3e130067e..dc1dc55f139b 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1214,6 +1214,9 @@ bool dc_add_plane_to_context(
free_pipe->clock_source = tail_pipe->clock_source;
free_pipe->top_pipe = tail_pipe;
tail_pipe->bottom_pipe = free_pipe;
+ } else if (free_pipe->bottom_pipe && free_pipe->bottom_pipe->plane_state == NULL) {
+ ASSERT(free_pipe->bottom_pipe->stream_res.opp != free_pipe->stream_res.opp);
+ free_pipe->bottom_pipe->plane_state = plane_state;
}
/* assign new surfaces*/
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 1131b0775534..5b8d44b8bb7d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -732,7 +732,7 @@ static enum dc_status dcn10_enable_stream_timing(
return DC_OK;
}
-static void reset_back_end_for_pipe(
+static void dcn10_reset_back_end_for_pipe(
struct dc *dc,
struct pipe_ctx *pipe_ctx,
struct dc_state *context)
@@ -1173,7 +1173,7 @@ static void dcn10_init_hw(struct dc *dc)
memset(&dc->res_pool->clk_mgr->clks, 0, sizeof(dc->res_pool->clk_mgr->clks));
}
-static void reset_hw_ctx_wrap(
+static void dcn10_reset_hw_ctx_wrap(
struct dc *dc,
struct dc_state *context)
{
@@ -1195,10 +1195,9 @@ static void reset_hw_ctx_wrap(
pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) {
struct clock_source *old_clk = pipe_ctx_old->clock_source;
- reset_back_end_for_pipe(dc, pipe_ctx_old, dc->current_state);
- if (dc->hwss.enable_stream_gating) {
+ dcn10_reset_back_end_for_pipe(dc, pipe_ctx_old, dc->current_state);
+ if (dc->hwss.enable_stream_gating)
dc->hwss.enable_stream_gating(dc, pipe_ctx);
- }
if (old_clk)
old_clk->funcs->cs_power_down(old_clk);
}
@@ -2943,7 +2942,7 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
.pipe_control_lock = dcn10_pipe_control_lock,
.prepare_bandwidth = dcn10_prepare_bandwidth,
.optimize_bandwidth = dcn10_optimize_bandwidth,
- .reset_hw_ctx_wrap = reset_hw_ctx_wrap,
+ .reset_hw_ctx_wrap = dcn10_reset_hw_ctx_wrap,
.enable_stream_timing = dcn10_enable_stream_timing,
.set_drr = set_drr,
.get_position = get_position,
--
2.17.1
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