drm/amd/display: Get rid of temp_flip_context

If we need to update our context we can allocate memory.
No need to keep temporary memory for this.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 7b0b735..e8499e7 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -409,8 +409,6 @@ static void destruct(struct core_dc *dc)
 
        dm_free(dc->current_context);
        dc->current_context = NULL;
-       dm_free(dc->temp_flip_context);
-       dc->temp_flip_context = NULL;
 
        dm_free(dc->ctx);
        dc->ctx = NULL;
@@ -429,9 +427,8 @@ static bool construct(struct core_dc *dc,
        }
 
        dc->current_context = dm_alloc(sizeof(*dc->current_context));
-       dc->temp_flip_context = dm_alloc(sizeof(*dc->temp_flip_context));
 
-       if (!dc->current_context || !dc->temp_flip_context) {
+       if (!dc->current_context) {
                dm_error("%s: failed to create validate ctx\n", __func__);
                goto val_ctx_fail;
        }
@@ -874,13 +871,9 @@ bool dc_commit_streams(
        }
 
        resource_validate_ctx_destruct(core_dc->current_context);
+       dm_free(core_dc->current_context);
 
-       if (core_dc->temp_flip_context != core_dc->current_context) {
-               dm_free(core_dc->temp_flip_context);
-               core_dc->temp_flip_context = core_dc->current_context;
-       }
        core_dc->current_context = context;
-       memset(core_dc->temp_flip_context, 0, sizeof(*core_dc->temp_flip_context));
 
        return (result == DC_OK);
 
@@ -1212,7 +1205,7 @@ void dc_update_surfaces_and_stream(struct dc *dc,
                        new_surfaces[i] = srf_updates[i].surface;
 
                /* initialize scratch memory for building context */
-               context = core_dc->temp_flip_context;
+               context = dm_alloc(sizeof(*context));
                resource_validate_ctx_copy_construct(
                                core_dc->current_context, context);
 
@@ -1220,7 +1213,7 @@ void dc_update_surfaces_and_stream(struct dc *dc,
                if (!resource_attach_surfaces_to_context(
                                new_surfaces, surface_count, dc_stream, context)) {
                        BREAK_TO_DEBUGGER();
-                       return;
+                       goto fail;
                }
        } else {
                context = core_dc->current_context;
@@ -1326,7 +1319,7 @@ void dc_update_surfaces_and_stream(struct dc *dc,
        if (update_type == UPDATE_TYPE_FULL) {
                if (!core_dc->res_pool->funcs->validate_bandwidth(core_dc, context)) {
                        BREAK_TO_DEBUGGER();
-                       return;
+                       goto fail;
                } else
                        core_dc->hwss.set_bandwidth(core_dc, context, false);
        }
@@ -1418,10 +1411,17 @@ void dc_update_surfaces_and_stream(struct dc *dc,
 
        if (core_dc->current_context != context) {
                resource_validate_ctx_destruct(core_dc->current_context);
-               core_dc->temp_flip_context = core_dc->current_context;
+               dm_free(core_dc->current_context);
 
                core_dc->current_context = context;
        }
+       return;
+
+fail:
+       if (core_dc->current_context != context) {
+               resource_validate_ctx_destruct(context);
+               dm_free(context);
+       }
 }
 
 uint8_t dc_get_current_stream_count(const struct dc *dc)

diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_dc.h b/drivers/gpu/drm/amd/display/dc/inc/core_dc.h
index ec3edbe..f9363f6 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/inc/core_dc.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_dc.h
@@ -22,7 +22,6 @@ struct core_dc {
        struct core_link *links[MAX_PIPES * 2];
 
        struct validate_context *current_context;
-       struct validate_context *temp_flip_context;
        struct resource_pool *res_pool;
 
        /* Display Engine Clock levels */