diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 72 |
1 files changed, 70 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 8e0ca4a0e51d..e6a0b3540529 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -2128,6 +2128,74 @@ static bool dcn20_validate_dsc(struct dc *dc, struct dc_state *new_ctx) } #endif +static struct pipe_ctx *dcn20_find_secondary_pipe(struct dc *dc, + struct resource_context *res_ctx, + const struct resource_pool *pool, + const struct pipe_ctx *primary_pipe) +{ + struct pipe_ctx *secondary_pipe = NULL; + + if (dc && primary_pipe) { + int j; + int preferred_pipe_idx = 0; + + /* first check the prev dc state: + * if this primary pipe has a bottom pipe in prev. state + * and if the bottom pipe is still available (which it should be), + * pick that pipe as secondary + */ + if (dc->current_state->res_ctx.pipe_ctx[primary_pipe->pipe_idx].bottom_pipe) { + preferred_pipe_idx = dc->current_state->res_ctx.pipe_ctx[primary_pipe->pipe_idx].bottom_pipe->pipe_idx; + if (res_ctx->pipe_ctx[preferred_pipe_idx].stream == NULL) { + secondary_pipe = &res_ctx->pipe_ctx[preferred_pipe_idx]; + secondary_pipe->pipe_idx = preferred_pipe_idx; + } + } + + /* + * if this primary pipe does not have a bottom pipe in prev. state + * start backward and find a pipe that did not used to be a bottom pipe in + * prev. dc state. This way we make sure we keep the same assignment as + * last state and will not have to reprogram every pipe + */ + if (secondary_pipe == NULL) { + for (j = dc->res_pool->pipe_count - 1; j >= 0; j--) { + if (dc->current_state->res_ctx.pipe_ctx[j].top_pipe == NULL) { + preferred_pipe_idx = j; + + if (res_ctx->pipe_ctx[preferred_pipe_idx].stream == NULL) { + secondary_pipe = &res_ctx->pipe_ctx[preferred_pipe_idx]; + secondary_pipe->pipe_idx = preferred_pipe_idx; + break; + } + } + } + } + /* + * We should never hit this assert unless assignments are shuffled around + * if this happens we will prob. hit a vsync tdr + */ + ASSERT(secondary_pipe); + /* + * search backwards for the second pipe to keep pipe + * assignment more consistent + */ + if (secondary_pipe == NULL) { + for (j = dc->res_pool->pipe_count - 1; j >= 0; j--) { + preferred_pipe_idx = j; + + if (res_ctx->pipe_ctx[preferred_pipe_idx].stream == NULL) { + secondary_pipe = &res_ctx->pipe_ctx[preferred_pipe_idx]; + secondary_pipe->pipe_idx = preferred_pipe_idx; + break; + } + } + } + } + + return secondary_pipe; +} + bool dcn20_fast_validate_bw( struct dc *dc, struct dc_state *context, @@ -2281,7 +2349,7 @@ bool dcn20_fast_validate_bw( if (force_split && context->bw_ctx.dml.vba.NoOfDPP[vlevel][context->bw_ctx.dml.vba.maxMpcComb][pipe_idx] == 1) context->bw_ctx.dml.vba.RequiredDPPCLK[vlevel][context->bw_ctx.dml.vba.maxMpcComb][pipe_idx] /= 2; if (!pipe->top_pipe && !pipe->plane_state && context->bw_ctx.dml.vba.ODMCombineEnabled[pipe_idx]) { - hsplit_pipe = find_idle_secondary_pipe(&context->res_ctx, dc->res_pool, pipe); + hsplit_pipe = dcn20_find_secondary_pipe(dc, &context->res_ctx, dc->res_pool, pipe); ASSERT(hsplit_pipe); if (!dcn20_split_stream_for_combine( &context->res_ctx, dc->res_pool, @@ -2322,7 +2390,7 @@ bool dcn20_fast_validate_bw( if (need_split3d || need_split || force_split) { if (!hsplit_pipe || hsplit_pipe->plane_state != pipe->plane_state) { /* pipe not split previously needs split */ - hsplit_pipe = find_idle_secondary_pipe(&context->res_ctx, dc->res_pool, pipe); + hsplit_pipe = dcn20_find_secondary_pipe(dc, &context->res_ctx, dc->res_pool, pipe); ASSERT(hsplit_pipe || force_split); if (!hsplit_pipe) continue; |