diff options
author | Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> | 2020-03-09 17:11:16 -0400 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2020-03-31 12:26:15 -0400 |
commit | c42656f8fc52de4f0321c5054896b1ccbb3c6cd2 (patch) | |
tree | ec877d2f28774e49b64bf90a7bca2a1c51678be9 /drivers/gpu/drm/amd/display | |
parent | 00755bb79cb239905780965c9bc128de7073a9f0 (diff) |
drm/amd/display: Fix dcn21 num_states
[Why]
DML expects num_states to exclude the duplicate state.
[How]
Set num_states to correct value to prevent array off-by-one error. Also
refactor max clock level code for diags.
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
4 files changed, 18 insertions, 30 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 54e096055c6f..5cdbba0cd873 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -3343,7 +3343,7 @@ void dcn20_cap_soc_clocks( 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[MAX_CLOCK_LIMIT_STATES]; + struct _vcs_dpi_voltage_scaling_st calculated_states[DC__VOLTAGE_STATES]; int i; int num_calculated_states = 0; int min_dcfclk = 0; diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c index deda1a6b603b..b25484aa8222 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c @@ -300,7 +300,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = { .xfc_bus_transport_time_us = 4, .xfc_xbuf_latency_tolerance_us = 4, .use_urgent_burst_bw = 1, - .num_states = 9 + .num_states = 8 }; #ifndef MAX @@ -1377,21 +1377,8 @@ static void update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param unsigned int i, j, k; int closest_clk_lvl; - // diags does not retrieve proper values from SMU - // cap states to 5 and make state 5 the max state - if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) || IS_DIAG_DC(dc->ctx->dce_environment)) { - dcn2_1_soc.num_states = 5; - - dcn2_1_soc.clock_limits[5].state = 5; - dcn2_1_soc.clock_limits[5].dcfclk_mhz = 810.0; - dcn2_1_soc.clock_limits[5].fabricclk_mhz = 1600.0; - dcn2_1_soc.clock_limits[5].dispclk_mhz = 1395.0; - dcn2_1_soc.clock_limits[5].dppclk_mhz = 1285.0; - dcn2_1_soc.clock_limits[5].phyclk_mhz = 1325.0; - dcn2_1_soc.clock_limits[5].socclk_mhz = 953.0; - dcn2_1_soc.clock_limits[5].dscclk_mhz = 489.0; - dcn2_1_soc.clock_limits[5].dram_speed_mts = 4266.0; - } else { + // Default clock levels are used for diags, which may lead to overclocking. + if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) && !IS_DIAG_DC(dc->ctx->dce_environment)) { dcn2_1_ip.max_num_otg = pool->base.res_cap->num_timing_generator; dcn2_1_ip.max_num_dpp = pool->base.pipe_count; dcn2_1_soc.num_chans = bw_params->num_channels; @@ -1404,16 +1391,16 @@ static void update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param dcn2_1_soc.clock_limits[0].dram_speed_mts = clk_table->entries[0].memclk_mhz * 2; /* - * Other levels: find cloest DCN clocks that fit the given clock limit using dcfclk - * as indicater + * Other levels: find closest DCN clocks that fit the given clock limit using dcfclk + * as indicator */ closest_clk_lvl = -1; /* index currently being filled */ k = 1; for (i = 1; i < clk_table->num_entries; i++) { - /* loop backwards, skip duplicate state, +1 because SMU has precision issue */ - for (j = dcn2_1_soc.num_states - 2; j >= k; j--) { + /* loop backwards, skip duplicate state*/ + for (j = dcn2_1_soc.num_states - 1; j >= k; j--) { if ((unsigned int) dcn2_1_soc.clock_limits[j].dcfclk_mhz <= clk_table->entries[i].dcfclk_mhz) { closest_clk_lvl = j; break; @@ -1438,13 +1425,13 @@ static void update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param k++; } } - - /* duplicate last level */ - dcn2_1_soc.clock_limits[k] = dcn2_1_soc.clock_limits[k - 1]; - dcn2_1_soc.clock_limits[k].state = k; - dcn2_1_soc.num_states = k + 1; + dcn2_1_soc.num_states = k; } + /* duplicate last level */ + dcn2_1_soc.clock_limits[dcn2_1_soc.num_states] = dcn2_1_soc.clock_limits[dcn2_1_soc.num_states - 1]; + dcn2_1_soc.clock_limits[dcn2_1_soc.num_states].state = dcn2_1_soc.num_states; + dml_init_instance(&dc->dml, &dcn2_1_soc, &dcn2_1_ip, DML_PROJECT_DCN21); } diff --git a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h index ea4cde952f4f..2a1983324629 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h +++ b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h @@ -29,7 +29,7 @@ #define DC__PRESENT 1 #define DC__PRESENT__1 1 #define DC__NUM_DPP 4 -#define DC__VOLTAGE_STATES 7 +#define DC__VOLTAGE_STATES 9 #define DC__NUM_DPP__4 1 #define DC__NUM_DPP__0_PRESENT 1 #define DC__NUM_DPP__1_PRESENT 1 diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h index dfd3be452766..687010c17324 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h +++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h @@ -22,11 +22,12 @@ * Authors: AMD * */ + +#include "dc_features.h" + #ifndef __DISPLAY_MODE_STRUCTS_H__ #define __DISPLAY_MODE_STRUCTS_H__ -#define MAX_CLOCK_LIMIT_STATES 9 - typedef struct _vcs_dpi_voltage_scaling_st voltage_scaling_st; typedef struct _vcs_dpi_soc_bounding_box_st soc_bounding_box_st; typedef struct _vcs_dpi_ip_params_st ip_params_st; @@ -68,7 +69,7 @@ struct _vcs_dpi_voltage_scaling_st { }; struct _vcs_dpi_soc_bounding_box_st { - struct _vcs_dpi_voltage_scaling_st clock_limits[MAX_CLOCK_LIMIT_STATES]; + struct _vcs_dpi_voltage_scaling_st clock_limits[DC__VOLTAGE_STATES]; unsigned int num_states; double sr_exit_time_us; double sr_enter_plus_exit_time_us; |