From: Rodrigo Siqueira Rodrigo.Siqueira@amd.com
[ Upstream commit c55300ad4a1814bac9191a4d2c7b0d74273aec7c ]
GCC throw warnings for the function dcn20_update_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=]
This commit fixes this issue by eliminating an intermediary variable that creates a large array.
Cc: Stephen Rothwell sfr@canb.auug.org.au Cc: Hamza Mahfooz hamza.mahfooz@amd.com Cc: Aurabindo Pillai aurabindo.pillai@amd.com Reviewed-by: Harry Wentland harry.wentland@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../drm/amd/display/dc/dml/dcn20/dcn20_fpu.c | 38 +++++++++---------- 1 file changed, 18 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c index f93af45aeab4..c758f84baaf5 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c @@ -1430,21 +1430,20 @@ void dcn20_calculate_wm( void dcn20_update_bounding_box(struct dc *dc, struct _vcs_dpi_soc_bounding_box_st *bb, struct pp_smu_nv_clock_table *max_clocks, unsigned int *uclk_states, unsigned int num_states) { - struct _vcs_dpi_voltage_scaling_st calculated_states[DC__VOLTAGE_STATES]; - int i; int num_calculated_states = 0; int min_dcfclk = 0; + int i;
dc_assert_fp_enabled();
if (num_states == 0) return;
- memset(calculated_states, 0, sizeof(calculated_states)); + memset(bb->clock_limits, 0, sizeof(bb->clock_limits));
- if (dc->bb_overrides.min_dcfclk_mhz > 0) + if (dc->bb_overrides.min_dcfclk_mhz > 0) { min_dcfclk = dc->bb_overrides.min_dcfclk_mhz; - else { + } else { if (ASICREV_IS_NAVI12_P(dc->ctx->asic_id.hw_internal_rev)) min_dcfclk = 310; else @@ -1455,36 +1454,35 @@ void dcn20_update_bounding_box(struct dc *dc, struct _vcs_dpi_soc_bounding_box_s
for (i = 0; i < num_states; i++) { int min_fclk_required_by_uclk; - calculated_states[i].state = i; - calculated_states[i].dram_speed_mts = uclk_states[i] * 16 / 1000; + bb->clock_limits[i].state = i; + bb->clock_limits[i].dram_speed_mts = uclk_states[i] * 16 / 1000;
// FCLK:UCLK ratio is 1.08 min_fclk_required_by_uclk = div_u64(((unsigned long long)uclk_states[i]) * 1080, 1000000);
- calculated_states[i].fabricclk_mhz = (min_fclk_required_by_uclk < min_dcfclk) ? + bb->clock_limits[i].fabricclk_mhz = (min_fclk_required_by_uclk < min_dcfclk) ? min_dcfclk : min_fclk_required_by_uclk;
- calculated_states[i].socclk_mhz = (calculated_states[i].fabricclk_mhz > max_clocks->socClockInKhz / 1000) ? - max_clocks->socClockInKhz / 1000 : calculated_states[i].fabricclk_mhz; + bb->clock_limits[i].socclk_mhz = (bb->clock_limits[i].fabricclk_mhz > max_clocks->socClockInKhz / 1000) ? + max_clocks->socClockInKhz / 1000 : bb->clock_limits[i].fabricclk_mhz;
- calculated_states[i].dcfclk_mhz = (calculated_states[i].fabricclk_mhz > max_clocks->dcfClockInKhz / 1000) ? - max_clocks->dcfClockInKhz / 1000 : calculated_states[i].fabricclk_mhz; + bb->clock_limits[i].dcfclk_mhz = (bb->clock_limits[i].fabricclk_mhz > max_clocks->dcfClockInKhz / 1000) ? + max_clocks->dcfClockInKhz / 1000 : bb->clock_limits[i].fabricclk_mhz;
- calculated_states[i].dispclk_mhz = max_clocks->displayClockInKhz / 1000; - calculated_states[i].dppclk_mhz = max_clocks->displayClockInKhz / 1000; - calculated_states[i].dscclk_mhz = max_clocks->displayClockInKhz / (1000 * 3); + bb->clock_limits[i].dispclk_mhz = max_clocks->displayClockInKhz / 1000; + bb->clock_limits[i].dppclk_mhz = max_clocks->displayClockInKhz / 1000; + bb->clock_limits[i].dscclk_mhz = max_clocks->displayClockInKhz / (1000 * 3);
- calculated_states[i].phyclk_mhz = max_clocks->phyClockInKhz / 1000; + bb->clock_limits[i].phyclk_mhz = max_clocks->phyClockInKhz / 1000;
num_calculated_states++; }
- calculated_states[num_calculated_states - 1].socclk_mhz = max_clocks->socClockInKhz / 1000; - calculated_states[num_calculated_states - 1].fabricclk_mhz = max_clocks->socClockInKhz / 1000; - calculated_states[num_calculated_states - 1].dcfclk_mhz = max_clocks->dcfClockInKhz / 1000; + bb->clock_limits[num_calculated_states - 1].socclk_mhz = max_clocks->socClockInKhz / 1000; + bb->clock_limits[num_calculated_states - 1].fabricclk_mhz = max_clocks->socClockInKhz / 1000; + bb->clock_limits[num_calculated_states - 1].dcfclk_mhz = max_clocks->dcfClockInKhz / 1000;
- memcpy(bb->clock_limits, calculated_states, sizeof(bb->clock_limits)); bb->num_states = num_calculated_states;
// Duplicate the last state, DML always an extra state identical to max state to work