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drm/amd/display: Try to acquire a free OTG master not used in cur ctx first

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[WHY & HOW]
The current otg master pipe allocation logic is not optimized based
current resource context. We should try to acquire a free OTG master not
used in cur cts first to avoid unnecessary pipe switch from current
state.

Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu
2023-10-20 16:26:19 -04:00
committed by Alex Deucher
parent 8b8eed05a1
commit 68cfc5d8e4
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
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@@ -3586,6 +3586,7 @@ static void mark_seamless_boot_stream(
* |________|_______________|___________|_____________|
*/
static bool acquire_otg_master_pipe_for_stream(
const struct dc_state *cur_ctx,
struct dc_state *new_ctx,
const struct resource_pool *pool,
struct dc_stream_state *stream)
@@ -3599,7 +3600,10 @@ static bool acquire_otg_master_pipe_for_stream(
int pipe_idx;
struct pipe_ctx *pipe_ctx = NULL;
pipe_idx = resource_find_any_free_pipe(&new_ctx->res_ctx, pool);
pipe_idx = recource_find_free_pipe_not_used_in_cur_res_ctx(
&cur_ctx->res_ctx, &new_ctx->res_ctx, pool);
if (pipe_idx == FREE_PIPE_INDEX_NOT_FOUND)
pipe_idx = resource_find_any_free_pipe(&new_ctx->res_ctx, pool);
if (pipe_idx != FREE_PIPE_INDEX_NOT_FOUND) {
pipe_ctx = &new_ctx->res_ctx.pipe_ctx[pipe_idx];
memset(pipe_ctx, 0, sizeof(*pipe_ctx));
@@ -3659,7 +3663,7 @@ enum dc_status resource_map_pool_resources(
if (!acquired)
/* acquire new resources */
acquired = acquire_otg_master_pipe_for_stream(
acquired = acquire_otg_master_pipe_for_stream(dc->current_state,
context, pool, stream);
pipe_ctx = resource_get_otg_master_for_stream(&context->res_ctx, stream);