[PATCH 05/23] drm/amd/display: Reduce frame size in the bouding box for DCN301

Hamza Mahfooz hamza.mahfooz at amd.com
Fri Jun 10 20:52:27 UTC 2022


From: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>

GCC throw warnings for the function dcn301_fpu_update_bw_bounding_box
due to its frame size that looks like this:

 error: the frame size of 1936 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

For fixing this issue I dropped an intermadiate variable.

Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz at amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
 .../amd/display/dc/dml/dcn301/dcn301_fpu.c    | 30 ++++++++-----------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
index 0a7a33864973..62cf283d9f41 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
@@ -249,7 +249,6 @@ void dcn301_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param
 {
 	struct dcn301_resource_pool *pool = TO_DCN301_RES_POOL(dc->res_pool);
 	struct clk_limit_table *clk_table = &bw_params->clk_table;
-	struct _vcs_dpi_voltage_scaling_st clock_limits[DC__VOLTAGE_STATES];
 	unsigned int i, closest_clk_lvl;
 	int j;
 
@@ -271,24 +270,21 @@ void dcn301_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param
 				}
 			}
 
-			clock_limits[i].state = i;
-			clock_limits[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
-			clock_limits[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
-			clock_limits[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
-			clock_limits[i].dram_speed_mts = clk_table->entries[i].memclk_mhz * 2;
-
-			clock_limits[i].dispclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
-			clock_limits[i].dppclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
-			clock_limits[i].dram_bw_per_chan_gbps = dcn3_01_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
-			clock_limits[i].dscclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
-			clock_limits[i].dtbclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
-			clock_limits[i].phyclk_d18_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
-			clock_limits[i].phyclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
+			dcn3_01_soc.clock_limits[i].state = i;
+			dcn3_01_soc.clock_limits[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
+			dcn3_01_soc.clock_limits[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
+			dcn3_01_soc.clock_limits[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
+			dcn3_01_soc.clock_limits[i].dram_speed_mts = clk_table->entries[i].memclk_mhz * 2;
+
+			dcn3_01_soc.clock_limits[i].dispclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
+			dcn3_01_soc.clock_limits[i].dppclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
+			dcn3_01_soc.clock_limits[i].dram_bw_per_chan_gbps = dcn3_01_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
+			dcn3_01_soc.clock_limits[i].dscclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
+			dcn3_01_soc.clock_limits[i].dtbclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
+			dcn3_01_soc.clock_limits[i].phyclk_d18_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
+			dcn3_01_soc.clock_limits[i].phyclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
 		}
 
-		for (i = 0; i < clk_table->num_entries; i++)
-			dcn3_01_soc.clock_limits[i] = clock_limits[i];
-
 		if (clk_table->num_entries) {
 			dcn3_01_soc.num_states = clk_table->num_entries;
 			/* duplicate last level */
-- 
2.36.1



More information about the amd-gfx mailing list