Add SMT toggle

main.py

@@ -5,20 +5,25 @@ class Plugin:
     SCALING_FREQUENCIES = [1700000, 2400000, 2800000]
     
     # call from main_view.html with setCPUs(onclick_event) or call_plugin_method("set_cpus", count)
-    async def set_cpus(self, count) -> int:
+    async def set_cpus(self, count, smt=True) -> int:
-        print("Setting CPUs")
+        # print("Setting CPUs")
-        with open("/home/deck/PowerTools.log", "a") as f:
+        if smt:
-            f.write(f"Setting {count} CPUs to active\n")
-            f.flush()
             count = min(int(count), self.CPU_COUNT)
             # never touch cpu0, since it's special
             for cpu in range(1, count):
-                f.write(f"Setting CPU {cpu} to online\n")
                 enable_cpu(cpu)
             for cpu in range(count, self.CPU_COUNT):
-                f.write(f"Setting CPU {cpu} to offline\n")
                 disable_cpu(cpu)
-        return self.CPU_COUNT
+            return self.CPU_COUNT
+        else:
+            count = min(int(count), self.CPU_COUNT / 2)
+            for cpu in range(1, self.CPU_COUNT, 2):
+                disable_cpu(cpu)
+            for cpu in range(2, self.CPU_COUNT, 2):
+                if (cpu / 2) + 1 > count:
+                    disable_cpu(cpu)
+                else:
+                    enable_cpu(cpu)
     
     async def get_cpus(self) -> int:
         online_count = 1 # cpu0 is always online
@@ -26,6 +31,9 @@ class Plugin:
             online_count += int(status_cpu(cpu))
         return online_count
 
+    async def get_smt(self) -> bool:
+        return status_cpu(1) == status_cpu(2) and status_cpu(3) == status_cpu(4)
+    
     async def set_boost(self, enabled: bool) -> bool:
         write_to_sys("/sys/devices/system/cpu/cpufreq/boost", int(enabled))
         return True
@@ -40,6 +48,8 @@ class Plugin:
         updated = 0
         for cpu in range(0, self.CPU_COUNT):
             if cpu == 0 or status_cpu(cpu):
+                if read_scaling_governor_cpu(cpu) != "userspace":
+                    write_scaling_governor_cpu(cpu, "userspace")
                 path = cpu_freq_scaling_path(cpu)
                 write_to_sys(path, selected_freq)
                 updated += 1
@@ -47,13 +57,14 @@ class Plugin:
 
     async def get_max_boost(self) -> int:
         path = cpu_freq_scaling_path(0)
-        freq = int(read_from_sys(path, amount=-1).strip())
+        freq_maybe = read_from_sys(path, amount=-1).strip()
+        if freq_maybe is None or len(freq_maybe) == 0 or freq_maybe == "<unsupported>":
+            return len(self.SCALING_FREQUENCIES) - 1
+        freq = int(freq_maybe)
         return self.SCALING_FREQUENCIES.index(freq)
 
     # Asyncio-compatible long-running code, executed in a task when the plugin is loaded
     async def _main(self):
-        with open("/home/deck/PowerTools.log", "w") as f:
-            f.write(f"Main loop\n")
         pass
             
 
@@ -65,6 +76,9 @@ def cpu_online_path(cpu_number: int) -> str:
 def cpu_freq_scaling_path(cpu_number: int) -> str:
     return f"/sys/devices/system/cpu/cpu{cpu_number}/cpufreq/scaling_setspeed"
 
+def cpu_governor_scaling_path(cpu_number: int) -> str:
+    return f"/sys/devices/system/cpu/cpu{cpu_number}/cpufreq/scaling_governor"
+    
 def write_to_sys(path, value: int):
     with open(path, mode="w") as f:
         f.write(str(value))
@@ -84,3 +98,12 @@ def disable_cpu(cpu_number: int):
 def status_cpu(cpu_number: int) -> bool:
     filepath = cpu_online_path(cpu_number)
     return read_from_sys(filepath) == "1"
+
+def read_scaling_governor_cpu(cpu_number: int) -> str:
+    filepath = cpu_governor_scaling_path(cpu_number)
+    return read_from_sys(filepath, amount=-1).trim()
+
+def write_scaling_governor_cpu(cpu_number: int, governor: str):
+    filepath = cpu_governor_scaling_path(cpu_number)
+    with open(filepath, mode="w") as f:
+        f.write(governor)

main_view.html

@@ -6,14 +6,18 @@
         <script src="/static/library.js"></script>
         <script>
             // Python functions
-            function setCPUs(value) {
+            function setCPUs(value, smt) {
-                return call_plugin_method("set_cpus", {"count":value});
+                return call_plugin_method("set_cpus", {"count":value, "smt": smt});
             }
             
             function getCPUs() {
                 return call_plugin_method("get_cpus", {});
             }
 
+            function getSMT() {
+                return call_plugin_method("get_smt", {});
+            }
+            
             function setCPUBoost(value) {
                 return call_plugin_method("set_boost", {"enabled": value});
             }
@@ -35,13 +39,14 @@
             async function onReady() {
                 let boostToggle = document.getElementById("boostToggle");
                 setToggleState(boostToggle, await getCPUBoost());
+                setToggleState(document.getElementById("smtToggle"), await getSMT());
                 selectNotch("cpuThreadsNotch", await getCPUs() - 1, 8);
                 selectNotch("frequencyNotch", await getMaxBoost(), 3);
             }
 
             async function setCPUNotch(index) {
                 const ROOT_ID = "cpuThreadsNotch";
-                await setCPUs(index);
+                await setCPUs(index, getToggleState(document.getElementById("smtToggle")));
                 selectNotch(ROOT_ID, await getCPUs() - 1, 8);
             }
             
@@ -64,7 +69,15 @@
                 let toggle = document.getElementById("boostToggle");
                 let isActive = getToggleState(toggle);
                 await setCPUBoost(!isActive);
-                setToggleState(toggle, await getCPUBoost());
+                setToggleState(toggle, !isActive);
+            }
+
+            async function toggleCPUSMT() {
+                let toggle = document.getElementById("smtToggle");
+                let isActive = getToggleState(toggle);
+                await setCPUs(await getCPUs(), !isActive);
+                setToggleState(toggle, !isActive);
+                selectNotch("cpuThreadsNotch", await getCPUs() - 1, 8);
             }
 
             async function setBoostNotch(index) {
@@ -93,6 +106,26 @@
         <style type="text/css" media="screen"></style>
     </head>
     <body onload="onReady()">
+        <!-- SMT toggle switch, roughly copied from https://github.com/SteamDeckHomebrew/ExtraSettingsPlugin/blob/main/main_view.html -->
+        <div class="quickaccessmenu_TabGroupPanel_1QO7b Panel Focusable">
+            <div class="quickaccesscontrols_PanelSectionRow_26R5w">
+                <div class="quickaccesscontrols_PanelSectionRow_26R5w">
+                    <div class="gamepaddialog_Field_eKmEX gamepaddialog_WithFirstRow_2bDqk gamepaddialog_ExtraPaddingOnChildrenBelow_3nLNL gamepaddialog_StandardPadding_xIITX gamepaddialog_HighlightOnFocus_2HFrm Panel Focusable" style="--indent-level:0;">
+                        <div class="gamepaddialog_FieldLabelRow_2VcTl">
+                            <div class="gamepaddialog_FieldLabel_3jMlJ">
+                                CPU SMT
+                            </div>
+                            <div class="gamepaddialog_FieldChildren_2rhav">
+                                <div id="smtToggle" tabindex="0" class="gamepaddialog_Toggle_9Ql-o Focusable" onclick="toggleCPUSMT()">
+                                    <div class="gamepaddialog_ToggleRail_2bl0i"></div>
+                                    <div class="gamepaddialog_ToggleSwitch_1PQpp"></div>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
         <!-- CPUs selector -->
         <div class="gamepaddialog_Field_eKmEX gamepaddialog_WithFirstRow_2bDqk gamepaddialog_WithChildrenBelow_37xzV gamepaddialog_InlineWrapShiftsChildrenBelow_3LCXh gamepaddialog_WithBottomSeparator_3YKpU gamepaddialog_ChildrenWidthFixed_ljcbL gamepaddialog_ExtraPaddingOnChildrenBelow_3nLNL gamepaddialog_StandardPadding_xIITX gamepaddialog_HighlightOnFocus_2HFrm Panel Focusable">
             <div class="gamepaddialog_FieldLabelRow_2VcTl">
@@ -142,11 +175,11 @@
             </div>
         </div>
 
-        <!-- Toggle switch, roughly copied from https://github.com/SteamDeckHomebrew/ExtraSettingsPlugin/blob/main/main_view.html -->
+        <!-- CPU Boost toggle switch, roughly copied from https://github.com/SteamDeckHomebrew/ExtraSettingsPlugin/blob/main/main_view.html -->
         <div class="quickaccessmenu_TabGroupPanel_1QO7b Panel Focusable">
             <div class="quickaccesscontrols_PanelSectionRow_26R5w">
                 <div class="quickaccesscontrols_PanelSectionRow_26R5w">
-                    <div class="gamepaddialog_Field_eKmEX gamepaddialog_WithFirstRow_2bDqk gamepaddialog_ExtraPaddingOnChildrenBelow_3nLNL gamepaddialog_StandardPadding_xIITX gamepaddialog_HighlightOnFocus_2HFrm gamepaddialog_WithBottomSeparator_3YKpU Panel Focusable" style="--indent-level:0;">
+                    <div class="gamepaddialog_Field_eKmEX gamepaddialog_WithFirstRow_2bDqk gamepaddialog_ExtraPaddingOnChildrenBelow_3nLNL gamepaddialog_StandardPadding_xIITX gamepaddialog_HighlightOnFocus_2HFrm Panel Focusable" style="--indent-level:0;">
                         <div class="gamepaddialog_FieldLabelRow_2VcTl">
                             <div class="gamepaddialog_FieldLabel_3jMlJ">
                                 CPU Boost
@@ -154,7 +187,8 @@
                             <div class="gamepaddialog_FieldChildren_2rhav">
                                 <div id="boostToggle" tabindex="0" class="gamepaddialog_Toggle_9Ql-o Focusable" onclick="toggleCPUBoost()">
                                     <div class="gamepaddialog_ToggleRail_2bl0i"></div>
-                                <div class="gamepaddialog_ToggleSwitch_1PQpp"></div>
+                                    <div class="gamepaddialog_ToggleSwitch_1PQpp"></div>
+                                </div>
                             </div>
                         </div>
                     </div>
@@ -190,6 +224,9 @@
                 </div>
             </div>
             </div>
+            <div style="font-size:x-small;">
+            WARNING: this will change the CPU governor, affecting battery life until reboot.
+            </div>
         </div>
     </body>
 </html>