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drm/amd/display: reduce abm min reduction, deviation gain and contrast factor 

[Why]
Increased power savings are desired for ABM 2.2.

[How]
Reduce the minimum reduction level, the deviation gain and the contrast factor
to allow for more aggressive operation of the algorithm.

Signed-off-by: Josip Pavic <Josip.Pavic@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Josip Pavic 2019-02-22 16:55:08 -05:00 committed by Alex Deucher
parent 02553f57dc
commit 6aac37daeb
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/gpu/drm/amd/display/modules/power/power_helpers.c
View File

@ -41,9 +41,12 @@ static const unsigned char min_reduction_table[13] = {
static const unsigned char max_reduction_table[13] = {
0xf5, 0xe5, 0xd9, 0xcd, 0xb1, 0xa5, 0xa5, 0x80, 0x65, 0x4d, 0x4d, 0x4d, 0x32};
/* ABM 2.2 Min Reduction effectively disabled (100% for all configs)*/
/* Possible ABM 2.2 Min Reduction configs from least aggressive to most aggressive
* 0 1 2 3 4 5 6 7 8 9 10 11 12
* 100 100 100 100 100 100 100 90.2 85.1 80.0 80.0 75.3 75.3 %
*/
static const unsigned char min_reduction_table_v_2_2[13] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe6, 0xd9, 0xcc, 0xcc, 0xc0, 0xc0};
/* Possible ABM 2.2 Max Reduction configs from least aggressive to most aggressive
* 0 1 2 3 4 5 6 7 8 9 10 11 12
@ -408,9 +411,9 @@ void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parame
ram_table->flags = 0x0;
ram_table->deviation_gain[0] = 0xb3;
ram_table->deviation_gain[1] = 0xb3;
ram_table->deviation_gain[2] = 0xb3;
ram_table->deviation_gain[3] = 0xb3;
ram_table->deviation_gain[1] = 0xa8;
ram_table->deviation_gain[2] = 0x98;
ram_table->deviation_gain[3] = 0x68;
ram_table->min_reduction[0][0] = min_reduction_table_v_2_2[abm_config[set][0]];
ram_table->min_reduction[1][0] = min_reduction_table_v_2_2[abm_config[set][0]];
@ -505,7 +508,7 @@ void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parame
ram_table->contrastFactor[0] = 0x99;
ram_table->contrastFactor[1] = 0x99;
ram_table->contrastFactor[2] = 0x99;
ram_table->contrastFactor[2] = 0x90;
ram_table->contrastFactor[3] = 0x80;
ram_table->iir_curve[0] = 0x65;