From: Wenjing Liu <wenjing....@amd.com>
[why]
This commit is to populate link res in preparation of the next commit.
The next commit will replace all existing code to use link res instead
Reviewed-by: Jun Lei <jun....@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Signed-off-by: Wenjing Liu <wenjing....@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 9 ++++++---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 1 +
drivers/gpu/drm/amd/display/dc/inc/core_types.h | 4 ++++
3 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 4130cd98f1ce..a394946ef513 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -881,6 +881,7 @@ static bool dc_link_detect_helper(struct dc_link *link,
enum dc_connection_type pre_connection_type = dc_connection_none;
bool perform_dp_seamless_boot = false;
const uint32_t post_oui_delay = 30; // 30ms
+ struct link_resource link_res = { 0 };
DC_LOGGER_INIT(link->ctx->logger);
@@ -974,8 +975,10 @@ static bool dc_link_detect_helper(struct dc_link *link,
}
#if defined(CONFIG_DRM_AMD_DC_DCN)
- if
(dp_get_link_encoding_format(&link->reported_link_cap) == DP_128b_132b_ENCODING)
+ if
(dp_get_link_encoding_format(&link->reported_link_cap) ==
DP_128b_132b_ENCODING) {
add_dp_hpo_link_encoder_to_link(link);
+ link_res.hpo_dp_link_enc =
link->hpo_dp_link_enc;
+ }
#endif
if (link->type == dc_connection_mst_branch) {
@@ -986,7 +989,7 @@ static bool dc_link_detect_helper(struct dc_link *link,
* empty which leads to allocate_mst_payload()
has "0"
* pbn_per_slot value leading to exception on
dc_fixpt_div()
*/
- dp_verify_mst_link_cap(link, NULL);
+ dp_verify_mst_link_cap(link, &link_res);
/*
* This call will initiate MST topology
discovery. Which
@@ -1150,7 +1153,7 @@ static bool dc_link_detect_helper(struct dc_link *link,
// verify link cap for SST non-seamless boot
if (!perform_dp_seamless_boot)
dp_verify_link_cap_with_retries(link,
- NULL,
+ &link_res,
&link->reported_link_cap,
LINK_TRAINING_MAX_VERIFY_RETRY);
} else {
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 0da692c9a543..60a9eb6e521f 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2161,6 +2161,7 @@ enum dc_status resource_map_pool_resources(
&context->res_ctx, pool,
pipe_ctx->stream_res.hpo_dp_stream_enc,
true);
+ pipe_ctx->link_res.hpo_dp_link_enc =
stream->link->hpo_dp_link_enc;
}
}
#endif
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
index 9381ea0549d8..0bd28a332fcb 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
@@ -336,7 +336,11 @@ struct plane_resource {
/* all mappable hardware resources used to enable a link */
struct link_resource {
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+ struct hpo_dp_link_encoder *hpo_dp_link_enc;
+#else
void *dummy;
+#endif
};
union pipe_update_flags {
--
2.25.1
