Save clocks/voltage modification

daemon/src/config.rs

@@ -41,6 +41,8 @@ pub struct GpuConfig {
     pub fan_curve: BTreeMap<i32, f64>,
     pub power_cap: i32,
     pub power_profile: PowerProfile,
+    pub gpu_power_states: BTreeMap<u32, (i32, i32)>,  //<id, (clockspeed, voltage)>
+    pub vram_power_states: BTreeMap<u32, (i32, i32)>,
 }
 
 impl GpuConfig {
@@ -57,6 +59,8 @@ impl GpuConfig {
             fan_control_enabled: false,
             power_cap: -1,
             power_profile: PowerProfile::Auto,
+            gpu_power_states: BTreeMap::new(),
+            vram_power_states: BTreeMap::new(),
         }
     }
 }

daemon/src/gpu_controller.rs

@@ -157,7 +157,15 @@ impl GpuController {
             _ => None,
         };
 
-        self.set_power_profile(config.power_profile).unwrap();
+        self.set_power_profile(config.power_profile.clone()).unwrap();
+
+        for (num, (clockspeed, voltage)) in &config.gpu_power_states {
+            self.set_gpu_power_state(*num, *clockspeed, Some(*voltage)).expect("Failed to load power states");
+        }
+        
+        for (num, (clockspeed, voltage)) in &config.vram_power_states {
+            self.set_vram_power_state(*num, *clockspeed, Some(*voltage)).expect("Failed to load power states");
+        }
     }
 
     pub fn get_config(&self) -> GpuConfig {
@@ -520,6 +528,8 @@ impl GpuController {
         log::trace!("Writing {} to pp_od_clk_voltage", line);
 
         fs::write(self.hw_path.join("pp_od_clk_voltage"), line)?;
+        
+        self.config.gpu_power_states.insert(num, (clockspeed, voltage.unwrap()));
 
         Ok(())
     }
@@ -536,6 +546,8 @@ impl GpuController {
         log::trace!("Writing {} to pp_od_clk_voltage", line);
 
         fs::write(self.hw_path.join("pp_od_clk_voltage"), line)?;
+        
+        self.config.vram_power_states.insert(num, (clockspeed, voltage.unwrap()));
 
         Ok(())
     }