From: Alvin Lee <Alvin.Lee2@xxxxxxx>
[Description]
- When entering into a SubVP config that requires a minimal
transition we need to retain phantom pipes and also restore
the mall config
- This is because the min transition will remove phantom pipes
from the context (shallow copy) and not restore it's original
state
- This is just a workaround, and needs a proper fix
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Jasdeep Dhillon <jdhillon@xxxxxxx>
Signed-off-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 21 ++++++++++++++++++-
drivers/gpu/drm/amd/display/dc/dc_stream.h | 11 ++++++++++
.../drm/amd/display/dc/dcn32/dcn32_resource.c | 2 ++
.../drm/amd/display/dc/dcn32/dcn32_resource.h | 11 ----------
.../amd/display/dc/dcn321/dcn321_resource.c | 2 ++
.../gpu/drm/amd/display/dc/inc/core_types.h | 2 ++
6 files changed, 37 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index f9b8b6f6fd31..a7bfe0b6a5f3 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3954,6 +3954,7 @@ bool dc_update_planes_and_stream(struct dc *dc,
struct dc_state *context;
enum surface_update_type update_type;
int i;
+ struct mall_temp_config mall_temp_config;
/* In cases where MPO and split or ODM are used transitions can
* cause underflow. Apply stream configuration with minimal pipe
@@ -3985,11 +3986,29 @@ bool dc_update_planes_and_stream(struct dc *dc,
/* on plane removal, minimal state is the new one */
if (force_minimal_pipe_splitting && !is_plane_addition) {
+ /* Since all phantom pipes are removed in full validation,
+ * we have to save and restore the subvp/mall config when
+ * we do a minimal transition since the flags marking the
+ * pipe as subvp/phantom will be cleared (dc copy constructor
+ * creates a shallow copy).
+ */
+ if (dc->res_pool->funcs->save_mall_state)
+ dc->res_pool->funcs->save_mall_state(dc, context, &mall_temp_config);
if (!commit_minimal_transition_state(dc, context)) {
dc_release_state(context);
return false;
}
-
+ if (dc->res_pool->funcs->restore_mall_state)
+ dc->res_pool->funcs->restore_mall_state(dc, context, &mall_temp_config);
+
+ /* If we do a minimal transition with plane removal and the context
+ * has subvp we also have to retain back the phantom stream / planes
+ * since the refcount is decremented as part of the min transition
+ * (we commit a state with no subvp, so the phantom streams / planes
+ * had to be removed).
+ */
+ if (dc->res_pool->funcs->retain_phantom_pipes)
+ dc->res_pool->funcs->retain_phantom_pipes(dc, context);
update_type = UPDATE_TYPE_FULL;
}
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index e0cee9666c48..dfd3df1d2f7e 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -160,6 +160,17 @@ struct mall_stream_config {
struct dc_stream_state *paired_stream; // master / slave stream
};
+/* Temp struct used to save and restore MALL config
+ * during validation.
+ *
+ * TODO: Move MALL config into dc_state instead of stream struct
+ * to avoid needing to save/restore.
+ */
+struct mall_temp_config {
+ struct mall_stream_config mall_stream_config[MAX_PIPES];
+ bool is_phantom_plane[MAX_PIPES];
+};
+
struct dc_stream_state {
// sink is deprecated, new code should not reference
// this pointer
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
index 99ddd2232322..06489df85ac1 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
@@ -2055,6 +2055,8 @@ static struct resource_funcs dcn32_res_pool_funcs = {
.add_phantom_pipes = dcn32_add_phantom_pipes,
.remove_phantom_pipes = dcn32_remove_phantom_pipes,
.retain_phantom_pipes = dcn32_retain_phantom_pipes,
+ .save_mall_state = dcn32_save_mall_state,
+ .restore_mall_state = dcn32_restore_mall_state,
};
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h
index c50bb34b515f..4e6b71832187 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h
@@ -45,17 +45,6 @@
extern struct _vcs_dpi_ip_params_st dcn3_2_ip;
extern struct _vcs_dpi_soc_bounding_box_st dcn3_2_soc;
-/* Temp struct used to save and restore MALL config
- * during validation.
- *
- * TODO: Move MALL config into dc_state instead of stream struct
- * to avoid needing to save/restore.
- */
-struct mall_temp_config {
- struct mall_stream_config mall_stream_config[MAX_PIPES];
- bool is_phantom_plane[MAX_PIPES];
-};
-
struct dcn32_resource_pool {
struct resource_pool base;
};
diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
index b66fe62cbd99..3406e7735357 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
@@ -1622,6 +1622,8 @@ static struct resource_funcs dcn321_res_pool_funcs = {
.add_phantom_pipes = dcn32_add_phantom_pipes,
.remove_phantom_pipes = dcn32_remove_phantom_pipes,
.retain_phantom_pipes = dcn32_retain_phantom_pipes,
+ .save_mall_state = dcn32_save_mall_state,
+ .restore_mall_state = dcn32_restore_mall_state,
};
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 aac1b3989c95..40a8096a6ccc 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
@@ -243,6 +243,8 @@ struct resource_funcs {
bool (*remove_phantom_pipes)(struct dc *dc, struct dc_state *context);
void (*retain_phantom_pipes)(struct dc *dc, struct dc_state *context);
void (*get_panel_config_defaults)(struct dc_panel_config *panel_config);
+ void (*save_mall_state)(struct dc *dc, struct dc_state *context, struct mall_temp_config *temp_config);
+ void (*restore_mall_state)(struct dc *dc, struct dc_state *context, struct mall_temp_config *temp_config);
};
struct audio_support{
--
2.34.1
