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drm/amdgpu: add an implement for check_power_state equal for CI 

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 2016-10-14 19:16:54 +08:00 committed by Alex Deucher
parent fbebf2c6bc
commit 1d516c41d9
1 changed files with 51 additions and 0 deletions
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51
drivers/gpu/drm/amd/amdgpu/ci_dpm.c
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@ -6100,6 +6100,56 @@ static void ci_dpm_print_power_state(struct amdgpu_device *adev,
amdgpu_dpm_print_ps_status(adev, rps);
}
static inline bool ci_are_power_levels_equal(const struct ci_pl *ci_cpl1,
const struct ci_pl *ci_cpl2)
{
return ((ci_cpl1->mclk == ci_cpl2->mclk) &&
(ci_cpl1->sclk == ci_cpl2->sclk) &&
(ci_cpl1->pcie_gen == ci_cpl2->pcie_gen) &&
(ci_cpl1->pcie_lane == ci_cpl2->pcie_lane));
}
static int ci_check_state_equal(struct amdgpu_device *adev,
struct amdgpu_ps *cps,
struct amdgpu_ps *rps,
bool *equal)
{
struct ci_ps *ci_cps;
struct ci_ps *ci_rps;
int i;
if (adev == NULL || cps == NULL || rps == NULL || equal == NULL)
return -EINVAL;
ci_cps = ci_get_ps(cps);
ci_rps = ci_get_ps(rps);
if (ci_cps == NULL) {
*equal = false;
return 0;
}
if (ci_cps->performance_level_count != ci_rps->performance_level_count) {
*equal = false;
return 0;
}
for (i = 0; i < ci_cps->performance_level_count; i++) {
if (!ci_are_power_levels_equal(&(ci_cps->performance_levels[i]),
&(ci_rps->performance_levels[i]))) {
*equal = false;
return 0;
}
}
/* If all performance levels are the same try to use the UVD clocks to break the tie.*/
*equal = ((cps->vclk == rps->vclk) && (cps->dclk == rps->dclk));
*equal &= ((cps->evclk == rps->evclk) && (cps->ecclk == rps->ecclk));
return 0;
}
static u32 ci_dpm_get_sclk(struct amdgpu_device *adev, bool low)
{
struct ci_power_info *pi = ci_get_pi(adev);
@ -6650,6 +6700,7 @@ static const struct amdgpu_dpm_funcs ci_dpm_funcs = {
.set_sclk_od = ci_dpm_set_sclk_od,
.get_mclk_od = ci_dpm_get_mclk_od,
.set_mclk_od = ci_dpm_set_mclk_od,
.check_state_equal = ci_check_state_equal,
.get_vce_clock_state = amdgpu_get_vce_clock_state,
};