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drm/amd/powerplay: add some hwmgr functions for sysfs interface on Carrizo 

These add the interfaces for manual clock control.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Huang 2016-01-22 12:17:41 -05:00 committed by Alex Deucher
parent b9c1a77e8c
commit d7341ef668
1 changed files with 51 additions and 0 deletions
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51
drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
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@ -1700,6 +1700,54 @@ static void cz_hw_print_display_cfg(
return -EINVAL;
}
static int cz_force_clock_level(struct pp_hwmgr *hwmgr,
enum pp_clock_type type, int level)
{
if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
return -EINVAL;
switch (type) {
case PP_SCLK:
smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
PPSMC_MSG_SetSclkSoftMin,
(1 << level));
smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
PPSMC_MSG_SetSclkSoftMax,
(1 << level));
break;
default:
break;
}
return 0;
}
static int cz_print_clock_levels(struct pp_hwmgr *hwmgr,
enum pp_clock_type type, char *buf)
{
struct phm_clock_voltage_dependency_table *sclk_table =
hwmgr->dyn_state.vddc_dependency_on_sclk;
int i, now, size = 0;
switch (type) {
case PP_SCLK:
now = PHM_GET_FIELD(cgs_read_ind_register(hwmgr->device,
CGS_IND_REG__SMC,
ixTARGET_AND_CURRENT_PROFILE_INDEX),
TARGET_AND_CURRENT_PROFILE_INDEX,
CURR_SCLK_INDEX);
for (i = 0; i < sclk_table->count; i++)
size += sprintf(buf + size, "%d: %uMhz %s\n",
i, sclk_table->entries[i].clk / 100,
(i == now) ? "*" : "");
break;
default:
break;
}
return size;
}
static const struct pp_hwmgr_func cz_hwmgr_funcs = {
.backend_init = cz_hwmgr_backend_init,
.backend_fini = cz_hwmgr_backend_fini,
@ -1719,6 +1767,9 @@ static const struct pp_hwmgr_func cz_hwmgr_funcs = {
.set_cpu_power_state = cz_set_cpu_power_state,
.store_cc6_data = cz_store_cc6_data,
.get_dal_power_level= cz_get_dal_power_level,
.force_clock_level = cz_force_clock_level,
.print_clock_levels = cz_print_clock_levels,
};
int cz_hwmgr_init(struct pp_hwmgr *hwmgr)