From: Wesley Chalmers <Wesley.Chalmers@xxxxxxx>
[WHY]
DCN code should make as few references to DCE as possible
[HOW]
Copy DCE110 implementation of find_first_free_match_stream_enc_for_link
into DCN10
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@xxxxxxx>
Reviewed-by: Tony Cheng <Tony.Cheng@xxxxxxx>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
---
.../drm/amd/display/dc/dcn10/dcn10_resource.c | 34 ++++++++++++++++++-
.../drm/amd/display/dc/dcn10/dcn10_resource.h | 5 +++
2 files changed, 38 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
index 97fb0a6ddf95..df30d9169c2c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -1235,6 +1235,38 @@ static enum dc_status dcn10_get_default_swizzle_mode(struct dc_plane_state *plan
return result;
}
+struct stream_encoder *dcn10_find_first_free_match_stream_enc_for_link(
+ struct resource_context *res_ctx,
+ const struct resource_pool *pool,
+ struct dc_stream_state *stream)
+{
+ int i;
+ int j = -1;
+ struct dc_link *link = stream->link;
+
+ for (i = 0; i < pool->stream_enc_count; i++) {
+ if (!res_ctx->is_stream_enc_acquired[i] &&
+ pool->stream_enc[i]) {
+ /* Store first available for MST second display
+ * in daisy chain use case
+ */
+ j = i;
+ if (pool->stream_enc[i]->id ==
+ link->link_enc->preferred_engine)
+ return pool->stream_enc[i];
+ }
+ }
+
+ /*
+ * For CZ and later, we can allow DIG FE and BE to differ for all display types
+ */
+
+ if (j >= 0)
+ return pool->stream_enc[j];
+
+ return NULL;
+}
+
static const struct dc_cap_funcs cap_funcs = {
.get_dcc_compression_cap = dcn10_get_dcc_compression_cap
};
@@ -1248,7 +1280,7 @@ static const struct resource_funcs dcn10_res_pool_funcs = {
.validate_global = dcn10_validate_global,
.add_stream_to_ctx = dcn10_add_stream_to_ctx,
.get_default_swizzle_mode = dcn10_get_default_swizzle_mode,
- .find_first_free_match_stream_enc_for_link = dce110_find_first_free_match_stream_enc_for_link
+ .find_first_free_match_stream_enc_for_link = dcn10_find_first_free_match_stream_enc_for_link
};
static uint32_t read_pipe_fuses(struct dc_context *ctx)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.h
index 999c684a0b36..633025ccb870 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.h
@@ -42,6 +42,11 @@ struct resource_pool *dcn10_create_resource_pool(
const struct dc_init_data *init_data,
struct dc *dc);
+struct stream_encoder *dcn10_find_first_free_match_stream_enc_for_link(
+ struct resource_context *res_ctx,
+ const struct resource_pool *pool,
+ struct dc_stream_state *stream);
+
#endif /* __DC_RESOURCE_DCN10_H__ */
--
2.17.1
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