drm/amd/display: Protect update_bw_bounding_box FPU code.

From Bas Nieuwenhuizen
211b67fb5a49c9f6e6a63d9b94ea96bf2e39341a in linux 5.15.y/5.15.26
1432108d00e42ffa383240bcac8d58f89ae19104 in mainline linux

diff --git a/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
index 1861a14..5c5cbeb 100644 (file)
--- a/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
+++ b/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
@@ -437,8 +437,10 @@ static void dcn3_get_memclk_states_from_smu(struct clk_mgr *clk_mgr_base)
        clk_mgr_base->bw_params->clk_table.num_entries = num_levels ? num_levels : 1;
 
        /* Refresh bounding box */
+       DC_FP_START();
        clk_mgr_base->ctx->dc->res_pool->funcs->update_bw_bounding_box(
                        clk_mgr->base.ctx->dc, clk_mgr_base->bw_params);
+       DC_FP_END();
 }
 
 static bool dcn3_is_smu_present(struct clk_mgr *clk_mgr_base)

diff --git a/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c b/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c
index 4fae734..b37c4d2 100644 (file)
--- a/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c
+++ b/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c
@@ -891,10 +891,13 @@ static bool dc_construct(struct dc *dc,
                goto fail;
 #ifdef CONFIG_DRM_AMD_DC_DCN
        dc->clk_mgr->force_smu_not_present = init_params->force_smu_not_present;
-#endif
 
-       if (dc->res_pool->funcs->update_bw_bounding_box)
+       if (dc->res_pool->funcs->update_bw_bounding_box) {
+               DC_FP_START();
                dc->res_pool->funcs->update_bw_bounding_box(dc, dc->clk_mgr->bw_params);
+               DC_FP_END();
+       }
+#endif
 
        /* Creation of current_state must occur after dc->dml
         * is initialized in dc_create_resource_pool because