From 1432108d00e42ffa383240bcac8d58f89ae19104 Mon Sep 17 00:00:00 2001
From: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Date: Sat, 12 Feb 2022 16:40:00 +0100
Subject: [PATCH] drm/amd/display: Protect update_bw_bounding_box FPU code.
Git-commit: 1432108d00e42ffa383240bcac8d58f89ae19104
Patch-mainline: v5.17-rc6
References: git-fixes
For DCN3/3.01/3.02 at least these use the fpu.
V2: squash in build fix for when DCN is not enabled (Leo)
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c | 2 ++
drivers/gpu/drm/amd/display/dc/core/dc.c | 7 +++++--
2 files changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
@@ -432,8 +432,10 @@ static void dcn3_get_memclk_states_from_
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)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/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