Remove support for old performance-mode interface

This interface has been removed a long time ago in favor of the generic
platform-profile kernel API. There are no recent kernels using this
interface any more, so remove support for it.

Author: qzed

src/cli/mod.rs

@@ -1,6 +1,5 @@
 pub mod dgpu;
 pub mod dtx;
-pub mod perf;
 pub mod profile;
 pub mod status;
 
@@ -24,7 +23,6 @@ impl Registry {
     pub fn build() -> Self {
         let list: Vec<Box<dyn Command>> = vec![
             Box::new(status::Command),
-            Box::new(perf::Command),
             Box::new(profile::Command),
             Box::new(dtx::Command),
             Box::new(dgpu::Command),

src/cli/perf.rs

@@ -30,16 +30,11 @@ impl DynCommand for Command {
 
 
 struct Stats {
-    perf: PerfStats,
     prof: ProfileStats,
     dgpu: DgpuStats,
     dtx:  DtxStats,
 }
 
-struct PerfStats {
-    mode: Option<sys::perf::Mode>,
-}
-
 struct ProfileStats {
     current: String,
     supported: Vec<String>,
@@ -63,35 +58,20 @@ struct DtxStats {
 
 impl Stats {
     fn load() -> Self {
-        let perf = PerfStats::load();
         let prof = ProfileStats::load();
         let dgpu = DgpuStats::load();
         let dtx  = DtxStats::load();
 
-        Stats { perf, prof, dgpu, dtx }
+        Stats { prof, dgpu, dtx }
     }
 
     fn available(&self) -> bool {
-        self.perf.available()
-            || self.prof.available()
+        self.prof.available()
             || self.dgpu.available()
             || self.dtx.available()
     }
 }
 
-impl PerfStats {
-    fn load() -> Self {
-        let mode = sys::perf::Device::open().ok()
-            .and_then(|device| device.get_mode().ok());
-
-        PerfStats { mode }
-    }
-
-    fn available(&self) -> bool {
-        self.mode.is_some()
-    }
-}
-
 impl ProfileStats {
     fn load() -> Self {
         let dev = sys::profile::Device::open().ok();
@@ -163,17 +143,7 @@ impl DtxStats {
 
 impl std::fmt::Display for Stats {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}{}{}{}", self.perf, self.prof, self.dgpu, self.dtx)
-    }
-}
-
-impl std::fmt::Display for PerfStats {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        if let Some(mode) = self.mode {
-            writeln!(f, "Performance Mode: {}\n", mode)
-        } else {
-            Ok(())
-        }
+        write!(f, "{}{}{}", self.prof, self.dgpu, self.dtx)
     }
 }
 

src/cli/status.rs

@@ -1,5 +1,4 @@
 pub mod pci;
-pub mod perf;
 pub mod profile;
 
 use thiserror::Error;
@@ -20,9 +19,6 @@ pub enum Error {
 
     #[error("SysFS error")]
     SysFs { source: pci::SysFsError },
-
-    #[error("Invalid data")]
-    InvalidData,
 }
 
 pub type Result<T> = std::result::Result<T, Error>;