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-rw-r--r--drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c21
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c14
2 files changed, 33 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
index 3960a8db94cb..1e5a92b192a1 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -690,6 +690,26 @@ static void hack_bounding_box(struct dcn_bw_internal_vars *v,
struct dc_debug_options *dbg,
struct dc_state *context)
{
+ int i;
+
+ for (i = 0; i < MAX_PIPES; i++) {
+ struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
+
+ /**
+ * Workaround for avoiding pipe-split in cases where we'd split
+ * planes that are too small, resulting in splits that aren't
+ * valid for the scaler.
+ */
+ if (pipe->plane_state &&
+ (pipe->plane_state->dst_rect.width <= 16 ||
+ pipe->plane_state->dst_rect.height <= 16 ||
+ pipe->plane_state->src_rect.width <= 16 ||
+ pipe->plane_state->src_rect.height <= 16)) {
+ hack_disable_optional_pipe_split(v);
+ return;
+ }
+ }
+
if (dbg->pipe_split_policy == MPC_SPLIT_AVOID)
hack_disable_optional_pipe_split(v);
@@ -702,7 +722,6 @@ static void hack_bounding_box(struct dcn_bw_internal_vars *v,
hack_force_pipe_split(v, context->streams[0]->timing.pix_clk_100hz);
}
-
unsigned int get_highest_allowed_voltage_level(uint32_t hw_internal_rev, uint32_t pci_revision_id)
{
/* for low power RV2 variants, the highest voltage level we want is 0 */
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 4190ee592e6d..cef1aa938ab5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2606,10 +2606,22 @@ int dcn20_validate_apply_pipe_split_flags(
} else if (dc->debug.force_single_disp_pipe_split)
force_split = true;
- /* TODO: fix dc bugs and remove this split threshold thing */
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
+ /**
+ * Workaround for avoiding pipe-split in cases where we'd split
+ * planes that are too small, resulting in splits that aren't
+ * valid for the scaler.
+ */
+ if (pipe->plane_state &&
+ (pipe->plane_state->dst_rect.width <= 16 ||
+ pipe->plane_state->dst_rect.height <= 16 ||
+ pipe->plane_state->src_rect.width <= 16 ||
+ pipe->plane_state->src_rect.height <= 16))
+ avoid_split = true;
+
+ /* TODO: fix dc bugs and remove this split threshold thing */
if (pipe->stream && !pipe->prev_odm_pipe &&
(!pipe->top_pipe || pipe->top_pipe->plane_state != pipe->plane_state))
++plane_count;