github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-26 10:02:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amd/display: Reduce DML reinitialization when params don't change

Browse Source 
[WHY]
Reinitializing DML causes an extra ~8s delay in gaming mode preset switches on some systems

[HOW]
Don't reinitialize DML unless params/caps have changed

Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Reviewed-by: Taimur Hassan <syed.hassan@amd.com>
Signed-off-by: Clara Wong <Clara.Wong@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Clara Wong 2026-06-24 11:25:09 -04:00 committed by Alex Deucher
parent 49521be480
commit 5a19fd061b
1 changed files with 16 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/amd/display/dc/dml2_0/dml21/dml21_wrapper_fpu.c
View File

@ -45,7 +45,22 @@ void dml21_init(const struct dc *in_dc, struct dml2_context *dml_ctx, const stru
void dml21_reinit(const struct dc *in_dc, struct dml2_context *dml_ctx, const struct dml2_configuration_options *config)
{
dml21_init(in_dc, dml_ctx, config);
struct dml2_instance *dml2 = dml_ctx->v21.dml_init.dml2_instance;
dml21_populate_configuration_options(in_dc, dml_ctx, config);
dml21_populate_dml_init_params(&dml_ctx->v21.dml_init, &dml_ctx->config, in_dc);
// Skip full re-initialization if soc_bb, ip_caps and pmo_options are unchanged
if (memcmp(&dml2->soc_bbox, &dml_ctx->v21.dml_init.soc_bb,
sizeof(struct dml2_soc_bb)) == 0 &&
memcmp(&dml2->ip_caps, &dml_ctx->v21.dml_init.ip_caps,
sizeof(struct dml2_ip_capabilities)) == 0 &&
memcmp(&dml2->pmo_options, &dml_ctx->v21.dml_init.options.pmo_options,
sizeof(struct dml2_pmo_options)) == 0)
return;
dml2_initialize_instance(&dml_ctx->v21.dml_init);
}
static void dml21_calculate_rq_and_dlg_params(const struct dc *dc, struct dc_state *context, struct resource_context *out_new_hw_state,