Change-Id: I6d214800a2bcf4781656905afc1643bca0dd07d5
Signed-off-by: Rex Zhu <rex....@amd.com>
---
drivers/gpu/drm/amd/amdgpu/si_dpm.c | 52 +++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
index 3de7bca..492f64f 100644
--- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
@@ -7957,6 +7957,57 @@ static int si_dpm_early_init(void *handle)
return 0;
}
+static inline bool si_are_power_levels_equal(const struct rv7xx_pl *pl
*si_cpl1,
+ const struct rv7xx_pl *pl
*si_cpl2)
+{
+ return ((si_cpl1->mclk == si_cpl2->mclk) &&
+ (si_cpl1->sclk == si_cpl2->sclk) &&
+ (si_cpl1->pcie_gen == si_cpl2->pcie_gen) &&
+ (si_cpl1->vddc == si_cpl2->vddc) &&
+ (si_cpl1->vddci == si_cpl2->vddci));
+}
+
+static int ci_check_state_equal(struct amdgpu_device *adev,
+ struct amdgpu_ps *cps,
+ struct amdgpu_ps *rps,
+ bool *equal)
+{
+ struct si_ps *si_cps;
+ struct si_ps *si_rps;
+ int i;
+
+ if (adev == NULL || cps == NULL || rps == NULL || equal == NULL)
+ return -EINVAL;
+
+ si_cps = si_get_ps(cps);
+ si_rps = si_get_ps(rps);
+
+ if (si_cps == NULL) {
+ printk("si_cps is NULL\n");
+ *equal = false;
+ return 0;
+ }
+
+ if (si_cps->performance_level_count != si_rps->performance_level_count)
{
+ *equal = false;
+ return 0;
+ }
+
+ for (i = 0; i < si_cps->performance_level_count; i++) {
+ if (!si_are_power_levels_equal(&(si_cps->performance_levels[i]),
+ &(si_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;
+}
+
const struct amd_ip_funcs si_dpm_ip_funcs = {
.name = "si_dpm",
@@ -7991,6 +8042,7 @@ static const struct amdgpu_dpm_funcs si_dpm_funcs = {
.get_fan_control_mode = &si_dpm_get_fan_control_mode,
.set_fan_speed_percent = &si_dpm_set_fan_speed_percent,
.get_fan_speed_percent = &si_dpm_get_fan_speed_percent,
+ .check_state_equal = &si_check_state_equal,
};
static void si_dpm_set_dpm_funcs(struct amdgpu_device *adev)
--
1.9.1
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