leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/amd/pm: add callback get_dpm_ultimate_freq for yellow carp

Browse Source 
Add callback function to get the hard frequency range of a clock domain
for yellow carp.

Signed-off-by: Xiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaomeng Hou 2021-03-28 20:59:34 +08:00 committed by Alex Deucher
parent 3df43e65e7
commit 40954754f7
1 changed files with 111 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

111
drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
View File

@ -670,6 +670,116 @@ static bool yellow_carp_clk_dpm_is_enabled(struct smu_context *smu,
return smu_cmn_feature_is_enabled(smu, feature_id);
}
static int yellow_carp_get_dpm_ultimate_freq(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t *min,
uint32_t *max)
{
DpmClocks_t *clk_table = smu->smu_table.clocks_table;
uint32_t clock_limit;
uint32_t max_dpm_level, min_dpm_level;
int ret = 0;
if (!yellow_carp_clk_dpm_is_enabled(smu, clk_type)) {
switch (clk_type) {
case SMU_MCLK:
case SMU_UCLK:
clock_limit = smu->smu_table.boot_values.uclk;
break;
case SMU_FCLK:
clock_limit = smu->smu_table.boot_values.fclk;
break;
case SMU_GFXCLK:
case SMU_SCLK:
clock_limit = smu->smu_table.boot_values.gfxclk;
break;
case SMU_SOCCLK:
clock_limit = smu->smu_table.boot_values.socclk;
break;
case SMU_VCLK:
clock_limit = smu->smu_table.boot_values.vclk;
break;
case SMU_DCLK:
clock_limit = smu->smu_table.boot_values.dclk;
break;
default:
clock_limit = 0;
break;
}
/* clock in Mhz unit */
if (min)
*min = clock_limit / 100;
if (max)
*max = clock_limit / 100;
return 0;
}
if (max) {
switch (clk_type) {
case SMU_GFXCLK:
case SMU_SCLK:
*max = clk_table->MaxGfxClk;
break;
case SMU_MCLK:
case SMU_UCLK:
case SMU_FCLK:
max_dpm_level = 0;
break;
case SMU_SOCCLK:
max_dpm_level = clk_table->NumSocClkLevelsEnabled - 1;
break;
case SMU_VCLK:
case SMU_DCLK:
max_dpm_level = clk_table->VcnClkLevelsEnabled - 1;
break;
default:
ret = -EINVAL;
goto failed;
}
if (clk_type != SMU_GFXCLK && clk_type != SMU_SCLK) {
ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, max_dpm_level, max);
if (ret)
goto failed;
}
}
if (min) {
switch (clk_type) {
case SMU_GFXCLK:
case SMU_SCLK:
*min = clk_table->MinGfxClk;
break;
case SMU_MCLK:
case SMU_UCLK:
case SMU_FCLK:
min_dpm_level = clk_table->NumDfPstatesEnabled - 1;
break;
case SMU_SOCCLK:
min_dpm_level = 0;
break;
case SMU_VCLK:
case SMU_DCLK:
min_dpm_level = 0;
break;
default:
ret = -EINVAL;
goto failed;
}
if (clk_type != SMU_GFXCLK && clk_type != SMU_SCLK) {
ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, min_dpm_level, min);
if (ret)
goto failed;
}
}
failed:
return ret;
}
static int yellow_carp_set_soft_freq_limited_range(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t min,
@ -835,6 +945,7 @@ static const struct pptable_funcs yellow_carp_ppt_funcs = {
.set_driver_table_location = smu_v13_0_1_set_driver_table_location,
.gfx_off_control = smu_v13_0_1_gfx_off_control,
.post_init = yellow_carp_post_smu_init,
.get_dpm_ultimate_freq = yellow_carp_get_dpm_ultimate_freq,
.od_edit_dpm_table = yellow_carp_od_edit_dpm_table,
.print_clk_levels = yellow_carp_print_clk_levels,
.force_clk_levels = yellow_carp_force_clk_levels,