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drm/amd/powerplay: add new Fiji function for not setting same ps. 

Add comparison function used by powerplay to determine which
power state to select.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2016-03-29 18:31:43 +08:00 committed by Alex Deucher
parent 5349ece706
commit bbe6aa9953
1 changed files with 63 additions and 0 deletions
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63
drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c
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@ -5195,6 +5195,67 @@ static int fiji_print_clock_levels(struct pp_hwmgr *hwmgr,
return size;
}
static inline bool fiji_are_power_levels_equal(const struct fiji_performance_level *pl1,
const struct fiji_performance_level *pl2)
{
return ((pl1->memory_clock == pl2->memory_clock) &&
(pl1->engine_clock == pl2->engine_clock) &&
(pl1->pcie_gen == pl2->pcie_gen) &&
(pl1->pcie_lane == pl2->pcie_lane));
}
int fiji_check_states_equal(struct pp_hwmgr *hwmgr, const struct pp_hw_power_state *pstate1, const struct pp_hw_power_state *pstate2, bool *equal)
{
const struct fiji_power_state *psa = cast_const_phw_fiji_power_state(pstate1);
const struct fiji_power_state *psb = cast_const_phw_fiji_power_state(pstate2);
int i;
if (equal == NULL || psa == NULL || psb == NULL)
return -EINVAL;
/* If the two states don't even have the same number of performance levels they cannot be the same state. */
if (psa->performance_level_count != psb->performance_level_count) {
*equal = false;
return 0;
}
for (i = 0; i < psa->performance_level_count; i++) {
if (!fiji_are_power_levels_equal(&(psa->performance_levels[i]), &(psb->performance_levels[i]))) {
/* If we have found even one performance level pair that is different the states are different. */
*equal = false;
return 0;
}
}
/* If all performance levels are the same try to use the UVD clocks to break the tie.*/
*equal = ((psa->uvd_clks.vclk == psb->uvd_clks.vclk) && (psa->uvd_clks.dclk == psb->uvd_clks.dclk));
*equal &= ((psa->vce_clks.evclk == psb->vce_clks.evclk) && (psa->vce_clks.ecclk == psb->vce_clks.ecclk));
*equal &= (psa->sclk_threshold == psb->sclk_threshold);
*equal &= (psa->acp_clk == psb->acp_clk);
return 0;
}
bool fiji_check_smc_update_required_for_display_configuration(struct pp_hwmgr *hwmgr)
{
struct fiji_hwmgr *data = (struct fiji_hwmgr *)(hwmgr->backend);
bool is_update_required = false;
struct cgs_display_info info = {0,0,NULL};
cgs_get_active_displays_info(hwmgr->device, &info);
if (data->display_timing.num_existing_displays != info.display_count)
is_update_required = true;
/* TO DO NEED TO GET DEEP SLEEP CLOCK FROM DAL
if (phm_cap_enabled(hwmgr->hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_SclkDeepSleep)) {
cgs_get_min_clock_settings(hwmgr->device, &min_clocks);
if(min_clocks.engineClockInSR != data->display_timing.minClockInSR)
is_update_required = true;
*/
return is_update_required;
}
static const struct pp_hwmgr_func fiji_hwmgr_funcs = {
.backend_init = &fiji_hwmgr_backend_init,
.backend_fini = &tonga_hwmgr_backend_fini,
@ -5230,6 +5291,8 @@ static const struct pp_hwmgr_func fiji_hwmgr_funcs = {
.register_internal_thermal_interrupt = fiji_register_internal_thermal_interrupt,
.set_fan_control_mode = fiji_set_fan_control_mode,
.get_fan_control_mode = fiji_get_fan_control_mode,
.check_states_equal = fiji_check_states_equal,
.check_smc_update_required_for_display_configuration = fiji_check_smc_update_required_for_display_configuration,
.get_pp_table = fiji_get_pp_table,
.set_pp_table = fiji_set_pp_table,
.force_clock_level = fiji_force_clock_level,